Biomarkers Predict Villous Atrophy in Potential Celiac Disease Patients

May Prevent Unnecessary Dietary Commitments
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Mon, 12/09/2024 - 13:05

In children with asymptomatic potential celiac disease (PCD), a panel of seven serum proteomic biomarkers can predict which individuals will go on to develop villous atrophy (VA), according to investigators.

Given that PCD patients present with positive serology and intact duodenal architecture, these findings may provide a much-needed tool for identifying patients who are more likely to benefit from early dietary interventions, lead author Renata Auricchio, MD, PhD, of the University of Naples Federico II, Italy, and colleagues reported.

“PCD offers the unique opportunity to observe the progression of gluten-induced tissue damage in celiac disease,” the investigators wrote in Gastroenterology. “These patients recognize gluten and produce specific autoantibodies, but have not developed intestinal damage.”

The study included 31 children with asymptomatic PCD who were eating a gluten-containing diet. Serum samples from each child were analyzed for the relative abundance of 92 inflammation-linked proteins using a proximity extension immunoassay. Statistical analyses, including partial least squares discriminant and linear discriminant analyses, were then applied to identify which proteins were associated with the development of VA.

After a mean follow-up period of 5.85 years, 14 participants developed VA (ie, celiac disease), while the remaining 17 remained asymptomatic.

Panel analysis revealed that specific inflammatory proteins, including interleukin (IL)–20, IL-2, sirtuin 2 (SIRT2), leukemia inhibitory factor (LIF), IL-22 receptor subunit a1, cystatin D (CST5), IL-17 receptor A, IL-15 receptor subunit a (RA), CUB domain–containing protein 1 (CDCP1), and IL-14, were 1.23- to 1.76-fold higher in children who developed VA. Among these, seven proteins — CDCP1, IL-2, LIF, IL10RA, SIRT2, CST5, and IL-4 — were able to significantly distinguish between symptomatic and asymptomatic cases in a linear discriminant model. This panel of seven proteins achieved a predictive accuracy of 96.8% in identifying children at risk of VA.

Additionally, bioinformatics pathway analysis confirmed that the broader set of proteins is involved in the positive regulation of JAK-STAT signaling (involving IL-22 receptor subunit a1, IL-4, IL-20, IL10RA, LIF, and IL-2), inflammatory responses (IL-4, IL-20, LIF, and IL-2), and processes such as tyrosine phosphorylation, leukocyte differentiation, IgG isotype switching, and protein phosphorylation regulation. These findings suggest that gluten-induced inflammation may already be active in early stages of the disease, including the initial phases of leukocyte differentiation, according to the investigators.

“Over a long follow-up on a gluten-containing diet, only 40% of these patients progressed to VA,” Dr. Auricchio and colleagues wrote. “Notably, 25%-30% of children with PCD even stop producing anti–tissue transglutaminase antibodies, and the others keep on producing autoantibodies but preserve a normal intestinal mucosa. Considering these data, the decision to address a patient with PCD on a gluten-free diet at time of diagnosis is quite critical.”

The researchers noted that this new model, with accuracy exceeding 95%, is well suited for routine use because of its practicality and reliability.

“Our previous model, based mainly on small intestinal mucosa features, moved a step toward the prediction of outcome but still required a mucosal biopsy, and the accuracy of prediction was not greater than 80%, which is somewhat uncertain for a lifelong clinical decision,” they wrote. In contrast, the present model “appears to be sufficient to immediately suggest a gluten-free diet in children with PCD, who are almost certainly committed to developing VA.”

The investigators called for long-term studies to validate their findings in other cohorts, including adult populations.This study was supported by the TIMID project and Inflammation in Human Early Life: Targeting Impacts on Life Course Health (INITIALISE) by the Horizon Europe Program of the European Union. The investigators disclosed no conflicts of interest.

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Patients with positive celiac serologies but normal villous architecture on biopsy are considered to have potential celiac disease (PCD). While the prevalence of PCD is not well-established, it is estimated to be around 1%. This study by Auricchio and colleagues investigates seven serum proteomic biomarkers that could help predict whether asymptomatic patients with PCD are at risk of developing villous atrophy (VA).

Dr. Stephanie M. Moleski

The study also identifies specific inflammatory proteins present in PCD patients who are likely to develop VA. These biomarkers provide valuable insights into the pathogenesis of celiac disease and the development of VA in genetically predisposed individuals.



As celiac disease is increasingly diagnosed without biopsies, serum proteomic biomarkers could be crucial in identifying patients who may benefit from starting a gluten-free diet (GFD) earlier, potentially preventing complications. According to the European Society of Pediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN) guidelines, children can be diagnosed with celiac disease if their tissue transglutaminase IgA level is 10 times the upper limit of normal, confirmed by a positive endomysial antibody test. However, this approach may lead to many patients committing to a lifelong GFD despite having only PCD, as biopsies may not have been performed. In this study, 60% of patients with PCD did not progress to VA, suggesting that biomarkers could help prevent unnecessary long-term GFD commitments.

Stephanie M. Moleski, MD, is the director of the Jefferson Celiac Center and associate professor in the division of gastroenterology at Thomas Jefferson University Hospital in Philadelphia. She reported no conflicts of interest.

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Patients with positive celiac serologies but normal villous architecture on biopsy are considered to have potential celiac disease (PCD). While the prevalence of PCD is not well-established, it is estimated to be around 1%. This study by Auricchio and colleagues investigates seven serum proteomic biomarkers that could help predict whether asymptomatic patients with PCD are at risk of developing villous atrophy (VA).

Dr. Stephanie M. Moleski

The study also identifies specific inflammatory proteins present in PCD patients who are likely to develop VA. These biomarkers provide valuable insights into the pathogenesis of celiac disease and the development of VA in genetically predisposed individuals.



As celiac disease is increasingly diagnosed without biopsies, serum proteomic biomarkers could be crucial in identifying patients who may benefit from starting a gluten-free diet (GFD) earlier, potentially preventing complications. According to the European Society of Pediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN) guidelines, children can be diagnosed with celiac disease if their tissue transglutaminase IgA level is 10 times the upper limit of normal, confirmed by a positive endomysial antibody test. However, this approach may lead to many patients committing to a lifelong GFD despite having only PCD, as biopsies may not have been performed. In this study, 60% of patients with PCD did not progress to VA, suggesting that biomarkers could help prevent unnecessary long-term GFD commitments.

Stephanie M. Moleski, MD, is the director of the Jefferson Celiac Center and associate professor in the division of gastroenterology at Thomas Jefferson University Hospital in Philadelphia. She reported no conflicts of interest.

Body

Patients with positive celiac serologies but normal villous architecture on biopsy are considered to have potential celiac disease (PCD). While the prevalence of PCD is not well-established, it is estimated to be around 1%. This study by Auricchio and colleagues investigates seven serum proteomic biomarkers that could help predict whether asymptomatic patients with PCD are at risk of developing villous atrophy (VA).

Dr. Stephanie M. Moleski

The study also identifies specific inflammatory proteins present in PCD patients who are likely to develop VA. These biomarkers provide valuable insights into the pathogenesis of celiac disease and the development of VA in genetically predisposed individuals.



As celiac disease is increasingly diagnosed without biopsies, serum proteomic biomarkers could be crucial in identifying patients who may benefit from starting a gluten-free diet (GFD) earlier, potentially preventing complications. According to the European Society of Pediatric Gastroenterology, Hepatology, and Nutrition (ESPGHAN) guidelines, children can be diagnosed with celiac disease if their tissue transglutaminase IgA level is 10 times the upper limit of normal, confirmed by a positive endomysial antibody test. However, this approach may lead to many patients committing to a lifelong GFD despite having only PCD, as biopsies may not have been performed. In this study, 60% of patients with PCD did not progress to VA, suggesting that biomarkers could help prevent unnecessary long-term GFD commitments.

Stephanie M. Moleski, MD, is the director of the Jefferson Celiac Center and associate professor in the division of gastroenterology at Thomas Jefferson University Hospital in Philadelphia. She reported no conflicts of interest.

Title
May Prevent Unnecessary Dietary Commitments
May Prevent Unnecessary Dietary Commitments

In children with asymptomatic potential celiac disease (PCD), a panel of seven serum proteomic biomarkers can predict which individuals will go on to develop villous atrophy (VA), according to investigators.

Given that PCD patients present with positive serology and intact duodenal architecture, these findings may provide a much-needed tool for identifying patients who are more likely to benefit from early dietary interventions, lead author Renata Auricchio, MD, PhD, of the University of Naples Federico II, Italy, and colleagues reported.

“PCD offers the unique opportunity to observe the progression of gluten-induced tissue damage in celiac disease,” the investigators wrote in Gastroenterology. “These patients recognize gluten and produce specific autoantibodies, but have not developed intestinal damage.”

The study included 31 children with asymptomatic PCD who were eating a gluten-containing diet. Serum samples from each child were analyzed for the relative abundance of 92 inflammation-linked proteins using a proximity extension immunoassay. Statistical analyses, including partial least squares discriminant and linear discriminant analyses, were then applied to identify which proteins were associated with the development of VA.

After a mean follow-up period of 5.85 years, 14 participants developed VA (ie, celiac disease), while the remaining 17 remained asymptomatic.

Panel analysis revealed that specific inflammatory proteins, including interleukin (IL)–20, IL-2, sirtuin 2 (SIRT2), leukemia inhibitory factor (LIF), IL-22 receptor subunit a1, cystatin D (CST5), IL-17 receptor A, IL-15 receptor subunit a (RA), CUB domain–containing protein 1 (CDCP1), and IL-14, were 1.23- to 1.76-fold higher in children who developed VA. Among these, seven proteins — CDCP1, IL-2, LIF, IL10RA, SIRT2, CST5, and IL-4 — were able to significantly distinguish between symptomatic and asymptomatic cases in a linear discriminant model. This panel of seven proteins achieved a predictive accuracy of 96.8% in identifying children at risk of VA.

Additionally, bioinformatics pathway analysis confirmed that the broader set of proteins is involved in the positive regulation of JAK-STAT signaling (involving IL-22 receptor subunit a1, IL-4, IL-20, IL10RA, LIF, and IL-2), inflammatory responses (IL-4, IL-20, LIF, and IL-2), and processes such as tyrosine phosphorylation, leukocyte differentiation, IgG isotype switching, and protein phosphorylation regulation. These findings suggest that gluten-induced inflammation may already be active in early stages of the disease, including the initial phases of leukocyte differentiation, according to the investigators.

“Over a long follow-up on a gluten-containing diet, only 40% of these patients progressed to VA,” Dr. Auricchio and colleagues wrote. “Notably, 25%-30% of children with PCD even stop producing anti–tissue transglutaminase antibodies, and the others keep on producing autoantibodies but preserve a normal intestinal mucosa. Considering these data, the decision to address a patient with PCD on a gluten-free diet at time of diagnosis is quite critical.”

The researchers noted that this new model, with accuracy exceeding 95%, is well suited for routine use because of its practicality and reliability.

“Our previous model, based mainly on small intestinal mucosa features, moved a step toward the prediction of outcome but still required a mucosal biopsy, and the accuracy of prediction was not greater than 80%, which is somewhat uncertain for a lifelong clinical decision,” they wrote. In contrast, the present model “appears to be sufficient to immediately suggest a gluten-free diet in children with PCD, who are almost certainly committed to developing VA.”

The investigators called for long-term studies to validate their findings in other cohorts, including adult populations.This study was supported by the TIMID project and Inflammation in Human Early Life: Targeting Impacts on Life Course Health (INITIALISE) by the Horizon Europe Program of the European Union. The investigators disclosed no conflicts of interest.

In children with asymptomatic potential celiac disease (PCD), a panel of seven serum proteomic biomarkers can predict which individuals will go on to develop villous atrophy (VA), according to investigators.

Given that PCD patients present with positive serology and intact duodenal architecture, these findings may provide a much-needed tool for identifying patients who are more likely to benefit from early dietary interventions, lead author Renata Auricchio, MD, PhD, of the University of Naples Federico II, Italy, and colleagues reported.

“PCD offers the unique opportunity to observe the progression of gluten-induced tissue damage in celiac disease,” the investigators wrote in Gastroenterology. “These patients recognize gluten and produce specific autoantibodies, but have not developed intestinal damage.”

The study included 31 children with asymptomatic PCD who were eating a gluten-containing diet. Serum samples from each child were analyzed for the relative abundance of 92 inflammation-linked proteins using a proximity extension immunoassay. Statistical analyses, including partial least squares discriminant and linear discriminant analyses, were then applied to identify which proteins were associated with the development of VA.

After a mean follow-up period of 5.85 years, 14 participants developed VA (ie, celiac disease), while the remaining 17 remained asymptomatic.

Panel analysis revealed that specific inflammatory proteins, including interleukin (IL)–20, IL-2, sirtuin 2 (SIRT2), leukemia inhibitory factor (LIF), IL-22 receptor subunit a1, cystatin D (CST5), IL-17 receptor A, IL-15 receptor subunit a (RA), CUB domain–containing protein 1 (CDCP1), and IL-14, were 1.23- to 1.76-fold higher in children who developed VA. Among these, seven proteins — CDCP1, IL-2, LIF, IL10RA, SIRT2, CST5, and IL-4 — were able to significantly distinguish between symptomatic and asymptomatic cases in a linear discriminant model. This panel of seven proteins achieved a predictive accuracy of 96.8% in identifying children at risk of VA.

Additionally, bioinformatics pathway analysis confirmed that the broader set of proteins is involved in the positive regulation of JAK-STAT signaling (involving IL-22 receptor subunit a1, IL-4, IL-20, IL10RA, LIF, and IL-2), inflammatory responses (IL-4, IL-20, LIF, and IL-2), and processes such as tyrosine phosphorylation, leukocyte differentiation, IgG isotype switching, and protein phosphorylation regulation. These findings suggest that gluten-induced inflammation may already be active in early stages of the disease, including the initial phases of leukocyte differentiation, according to the investigators.

“Over a long follow-up on a gluten-containing diet, only 40% of these patients progressed to VA,” Dr. Auricchio and colleagues wrote. “Notably, 25%-30% of children with PCD even stop producing anti–tissue transglutaminase antibodies, and the others keep on producing autoantibodies but preserve a normal intestinal mucosa. Considering these data, the decision to address a patient with PCD on a gluten-free diet at time of diagnosis is quite critical.”

The researchers noted that this new model, with accuracy exceeding 95%, is well suited for routine use because of its practicality and reliability.

“Our previous model, based mainly on small intestinal mucosa features, moved a step toward the prediction of outcome but still required a mucosal biopsy, and the accuracy of prediction was not greater than 80%, which is somewhat uncertain for a lifelong clinical decision,” they wrote. In contrast, the present model “appears to be sufficient to immediately suggest a gluten-free diet in children with PCD, who are almost certainly committed to developing VA.”

The investigators called for long-term studies to validate their findings in other cohorts, including adult populations.This study was supported by the TIMID project and Inflammation in Human Early Life: Targeting Impacts on Life Course Health (INITIALISE) by the Horizon Europe Program of the European Union. The investigators disclosed no conflicts of interest.

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Intratumoral Dendritic Cell Therapy Shows Promise in Early-Stage ERBB2-Positive Breast Cancer

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Tue, 12/24/2024 - 05:46

TOPLINE:

For patients with early-stage ERBB2 (formerly HER2)–positive breast cancer, injections of increasing doses of autologous conventional type 1 dendritic cells (cDC1) combined with ERBB2-targeted antibodies demonstrate safety and effectiveness in enhancing immune response. The higher dose (100 million cells) shows enhanced immune effector recruitment and significant tumor regression before chemotherapy initiation.

METHODOLOGY:

  • ERBB2-positive breast cancer survival has improved with anti-ERBB2 antibodies trastuzumab and pertuzumab, but for a pathologic complete response, chemotherapy remains necessary, which comes with significant toxic effects.
  • A phase 1, nonrandomized clinical trial enrolled 12 patients with early-stage ERBB2-positive breast cancer in Tampa, Florida, from October 2021 to October 2022.
  • Participants received intratumoral (IT) cDC1 injections weekly for 6 weeks at two dose levels (50 million cells for dose level 1 and 100 million cells for dose level 2), with six patients in each group.
  • Starting from day 1 of the cDC1 injections, treatment included trastuzumab (8-mg/kg loading dose, then 6 mg/kg) and pertuzumab (840-mg loading dose, then 420 mg) administered intravenously every 3 weeks for six cycles, followed by paclitaxel (80 mg/m2) weekly for 12 weeks and surgery with lumpectomy or mastectomy.
  • Primary outcomes measured safety and immune response of increasing doses of cDC1 combined with anti-ERBB2 antibodies before neoadjuvant chemotherapy; secondary outcomes assessed antitumor efficacy through breast MRI and residual cancer burden at surgery.

TAKEAWAY:

  • IT delivery of ERBB2 cDC1 was safe and not associated with any dose-limiting toxic effects. The most frequent adverse events attributed to cDC1 were grade 1-2 chills (50%), fatigue (41.7%), headache (33%), and injection-site reactions (33%).
  • Dose level 2 showed enhanced recruitment of adaptive CD3, CD4, and CD8 T cells and B cells within the tumor microenvironment (TME), along with increased innate gamma delta T cells and natural killer T cells.
  • Breast MRI revealed nine objective responses, including six partial responses and three complete responses, with three cases of stable disease.
  • Following surgery, 7 of 12 patients (58%) achieved a pathologic complete response, including all 3 hormone receptor–negative patients and 4 of the 9 hormone receptor–positive patients.

IN PRACTICE:

“Overall, the clinical data shown here demonstrate the effects of combining ERBB2 antibodies with IT [intratumoral] delivery of targeted cDC1 to enhance immune cell infiltration within the TME [tumor microenvironment] and subsequently induce tumor regression before chemotherapy,” wrote the authors, who noted they will be testing the higher dose for an ongoing phase 2 trial with an additional 41 patients.

SOURCE:

The study was led by Hyo S. Han, MD, of H. Lee Moffitt Cancer Center and Research Institute in Tampa, Florida. It was published online on December 5, 2024, in JAMA Oncology.

LIMITATIONS:

Because only two dose levels of cDC1 were tested, it remains unclear whether higher doses or different administration schedules could further enhance immune response. Additionally, the nonrandomized design prevents definitive conclusions about whether the clinical benefits were solely from the anti-ERBB2 antibodies. The small sample size also makes it difficult to determine if the pathologic complete responses were primarily due to the 12 weeks of trastuzumab/pertuzumab/paclitaxel treatment.

DISCLOSURES:

This study was funded by the Moffitt Breast Cancer Research Fund, Shula Fund, and Pennies in Action. Several authors reported research support and personal and consulting fees from US funding agencies and multiple pharmaceutical companies outside of the submitted work, as well as related intellectual property and patents.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

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TOPLINE:

For patients with early-stage ERBB2 (formerly HER2)–positive breast cancer, injections of increasing doses of autologous conventional type 1 dendritic cells (cDC1) combined with ERBB2-targeted antibodies demonstrate safety and effectiveness in enhancing immune response. The higher dose (100 million cells) shows enhanced immune effector recruitment and significant tumor regression before chemotherapy initiation.

METHODOLOGY:

  • ERBB2-positive breast cancer survival has improved with anti-ERBB2 antibodies trastuzumab and pertuzumab, but for a pathologic complete response, chemotherapy remains necessary, which comes with significant toxic effects.
  • A phase 1, nonrandomized clinical trial enrolled 12 patients with early-stage ERBB2-positive breast cancer in Tampa, Florida, from October 2021 to October 2022.
  • Participants received intratumoral (IT) cDC1 injections weekly for 6 weeks at two dose levels (50 million cells for dose level 1 and 100 million cells for dose level 2), with six patients in each group.
  • Starting from day 1 of the cDC1 injections, treatment included trastuzumab (8-mg/kg loading dose, then 6 mg/kg) and pertuzumab (840-mg loading dose, then 420 mg) administered intravenously every 3 weeks for six cycles, followed by paclitaxel (80 mg/m2) weekly for 12 weeks and surgery with lumpectomy or mastectomy.
  • Primary outcomes measured safety and immune response of increasing doses of cDC1 combined with anti-ERBB2 antibodies before neoadjuvant chemotherapy; secondary outcomes assessed antitumor efficacy through breast MRI and residual cancer burden at surgery.

TAKEAWAY:

  • IT delivery of ERBB2 cDC1 was safe and not associated with any dose-limiting toxic effects. The most frequent adverse events attributed to cDC1 were grade 1-2 chills (50%), fatigue (41.7%), headache (33%), and injection-site reactions (33%).
  • Dose level 2 showed enhanced recruitment of adaptive CD3, CD4, and CD8 T cells and B cells within the tumor microenvironment (TME), along with increased innate gamma delta T cells and natural killer T cells.
  • Breast MRI revealed nine objective responses, including six partial responses and three complete responses, with three cases of stable disease.
  • Following surgery, 7 of 12 patients (58%) achieved a pathologic complete response, including all 3 hormone receptor–negative patients and 4 of the 9 hormone receptor–positive patients.

IN PRACTICE:

“Overall, the clinical data shown here demonstrate the effects of combining ERBB2 antibodies with IT [intratumoral] delivery of targeted cDC1 to enhance immune cell infiltration within the TME [tumor microenvironment] and subsequently induce tumor regression before chemotherapy,” wrote the authors, who noted they will be testing the higher dose for an ongoing phase 2 trial with an additional 41 patients.

SOURCE:

The study was led by Hyo S. Han, MD, of H. Lee Moffitt Cancer Center and Research Institute in Tampa, Florida. It was published online on December 5, 2024, in JAMA Oncology.

LIMITATIONS:

Because only two dose levels of cDC1 were tested, it remains unclear whether higher doses or different administration schedules could further enhance immune response. Additionally, the nonrandomized design prevents definitive conclusions about whether the clinical benefits were solely from the anti-ERBB2 antibodies. The small sample size also makes it difficult to determine if the pathologic complete responses were primarily due to the 12 weeks of trastuzumab/pertuzumab/paclitaxel treatment.

DISCLOSURES:

This study was funded by the Moffitt Breast Cancer Research Fund, Shula Fund, and Pennies in Action. Several authors reported research support and personal and consulting fees from US funding agencies and multiple pharmaceutical companies outside of the submitted work, as well as related intellectual property and patents.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

For patients with early-stage ERBB2 (formerly HER2)–positive breast cancer, injections of increasing doses of autologous conventional type 1 dendritic cells (cDC1) combined with ERBB2-targeted antibodies demonstrate safety and effectiveness in enhancing immune response. The higher dose (100 million cells) shows enhanced immune effector recruitment and significant tumor regression before chemotherapy initiation.

METHODOLOGY:

  • ERBB2-positive breast cancer survival has improved with anti-ERBB2 antibodies trastuzumab and pertuzumab, but for a pathologic complete response, chemotherapy remains necessary, which comes with significant toxic effects.
  • A phase 1, nonrandomized clinical trial enrolled 12 patients with early-stage ERBB2-positive breast cancer in Tampa, Florida, from October 2021 to October 2022.
  • Participants received intratumoral (IT) cDC1 injections weekly for 6 weeks at two dose levels (50 million cells for dose level 1 and 100 million cells for dose level 2), with six patients in each group.
  • Starting from day 1 of the cDC1 injections, treatment included trastuzumab (8-mg/kg loading dose, then 6 mg/kg) and pertuzumab (840-mg loading dose, then 420 mg) administered intravenously every 3 weeks for six cycles, followed by paclitaxel (80 mg/m2) weekly for 12 weeks and surgery with lumpectomy or mastectomy.
  • Primary outcomes measured safety and immune response of increasing doses of cDC1 combined with anti-ERBB2 antibodies before neoadjuvant chemotherapy; secondary outcomes assessed antitumor efficacy through breast MRI and residual cancer burden at surgery.

TAKEAWAY:

  • IT delivery of ERBB2 cDC1 was safe and not associated with any dose-limiting toxic effects. The most frequent adverse events attributed to cDC1 were grade 1-2 chills (50%), fatigue (41.7%), headache (33%), and injection-site reactions (33%).
  • Dose level 2 showed enhanced recruitment of adaptive CD3, CD4, and CD8 T cells and B cells within the tumor microenvironment (TME), along with increased innate gamma delta T cells and natural killer T cells.
  • Breast MRI revealed nine objective responses, including six partial responses and three complete responses, with three cases of stable disease.
  • Following surgery, 7 of 12 patients (58%) achieved a pathologic complete response, including all 3 hormone receptor–negative patients and 4 of the 9 hormone receptor–positive patients.

IN PRACTICE:

“Overall, the clinical data shown here demonstrate the effects of combining ERBB2 antibodies with IT [intratumoral] delivery of targeted cDC1 to enhance immune cell infiltration within the TME [tumor microenvironment] and subsequently induce tumor regression before chemotherapy,” wrote the authors, who noted they will be testing the higher dose for an ongoing phase 2 trial with an additional 41 patients.

SOURCE:

The study was led by Hyo S. Han, MD, of H. Lee Moffitt Cancer Center and Research Institute in Tampa, Florida. It was published online on December 5, 2024, in JAMA Oncology.

LIMITATIONS:

Because only two dose levels of cDC1 were tested, it remains unclear whether higher doses or different administration schedules could further enhance immune response. Additionally, the nonrandomized design prevents definitive conclusions about whether the clinical benefits were solely from the anti-ERBB2 antibodies. The small sample size also makes it difficult to determine if the pathologic complete responses were primarily due to the 12 weeks of trastuzumab/pertuzumab/paclitaxel treatment.

DISCLOSURES:

This study was funded by the Moffitt Breast Cancer Research Fund, Shula Fund, and Pennies in Action. Several authors reported research support and personal and consulting fees from US funding agencies and multiple pharmaceutical companies outside of the submitted work, as well as related intellectual property and patents.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

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FDA Approves Durvalumab for Limited-Stage SCLC

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Fri, 12/06/2024 - 16:10

Durvalumab (Imfinzi, AstraZeneca) is now approved for adults with limited-stage small cell lung cancer (LS-SCLC) whose disease has not progressed after treatment with concurrent platinum-based chemotherapy and radiation therapy.

The Food and Drug Administration approval makes the monoclonal antibody — which is already approved for multiple tumor types — the first immunotherapy regimen approved in this setting, AstraZeneca noted in a press release.

“Durvalumab is the first and only systemic treatment following curative-intent, platinum-based chemoradiotherapy to show improved survival for patients with this aggressive form of lung cancer,” international coordinating investigator on the trial, Suresh Senan, PhD, stated in the press release. “This finding represents the first advance for this disease in 4 decades.”

Approval, which followed Priority Review and Breakthrough Therapy Designation, was based on findings from the phase 3 ADRIATIC trial showing a 27% reduction in the risk for death with durvalumab vs placebo.

Findings from the trial were reported during a plenary session at the 2024 American Society of Clinical Oncology conference, and subsequently published in The New England Journal of Medicine.

In 730 patients with LS-SCLC who were randomized 1:1:1 to receive single-agent durvalumab, durvalumab in combination with tremelimumab, or placebo, overall survival (OS) and progression-free survival (PFS) were significantly improved with durvalumab alone vs placebo (hazard ratio, 0.73 and 0.76, for OS and PFS, respectively). Median OS was 55.9 months vs 33.4 months with durvalumab vs placebo, and PFS was 16.6 vs 9.2 months, respectively.

Senan, a professor of clinical experimental radiotherapy at the Amsterdam University Medical Center in the Netherlands, noted in the press release that 57% of patients were still alive at 3 years after being treated with durvalumab, which underscores the practice-changing potential of this medicine in this setting.

“This new treatment option is a game changer for patients with limited-stage small cell lung cancer, a disease known for its high rate of recurrence,” Dusty Donaldson, founder and executive director of the nonprofit advocacy organization LiveLung, stated in the release. “Historically, more often than not, clinical trials to identify new treatment options for this type of cancer have failed to show benefit. We are therefore so excited that many more people will now have the opportunity to access this immunotherapy treatment that holds the potential to significantly improve outcomes.”

Adverse reactions occurring in at least 20% of patients in the ADRIATIC trial included pneumonitis or radiation pneumonitis and fatigue.

The recommended durvalumab dose, according to prescribing information, is 1500 mg every 4 weeks for patients weighing at least 30 kg and 20 mg/kg every 4 weeks for those weighing less than 30 kg, until disease progression or unacceptable toxicity or a maximum of 24 months.

A version of this article first appeared on Medscape.com.

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Durvalumab (Imfinzi, AstraZeneca) is now approved for adults with limited-stage small cell lung cancer (LS-SCLC) whose disease has not progressed after treatment with concurrent platinum-based chemotherapy and radiation therapy.

The Food and Drug Administration approval makes the monoclonal antibody — which is already approved for multiple tumor types — the first immunotherapy regimen approved in this setting, AstraZeneca noted in a press release.

“Durvalumab is the first and only systemic treatment following curative-intent, platinum-based chemoradiotherapy to show improved survival for patients with this aggressive form of lung cancer,” international coordinating investigator on the trial, Suresh Senan, PhD, stated in the press release. “This finding represents the first advance for this disease in 4 decades.”

Approval, which followed Priority Review and Breakthrough Therapy Designation, was based on findings from the phase 3 ADRIATIC trial showing a 27% reduction in the risk for death with durvalumab vs placebo.

Findings from the trial were reported during a plenary session at the 2024 American Society of Clinical Oncology conference, and subsequently published in The New England Journal of Medicine.

In 730 patients with LS-SCLC who were randomized 1:1:1 to receive single-agent durvalumab, durvalumab in combination with tremelimumab, or placebo, overall survival (OS) and progression-free survival (PFS) were significantly improved with durvalumab alone vs placebo (hazard ratio, 0.73 and 0.76, for OS and PFS, respectively). Median OS was 55.9 months vs 33.4 months with durvalumab vs placebo, and PFS was 16.6 vs 9.2 months, respectively.

Senan, a professor of clinical experimental radiotherapy at the Amsterdam University Medical Center in the Netherlands, noted in the press release that 57% of patients were still alive at 3 years after being treated with durvalumab, which underscores the practice-changing potential of this medicine in this setting.

“This new treatment option is a game changer for patients with limited-stage small cell lung cancer, a disease known for its high rate of recurrence,” Dusty Donaldson, founder and executive director of the nonprofit advocacy organization LiveLung, stated in the release. “Historically, more often than not, clinical trials to identify new treatment options for this type of cancer have failed to show benefit. We are therefore so excited that many more people will now have the opportunity to access this immunotherapy treatment that holds the potential to significantly improve outcomes.”

Adverse reactions occurring in at least 20% of patients in the ADRIATIC trial included pneumonitis or radiation pneumonitis and fatigue.

The recommended durvalumab dose, according to prescribing information, is 1500 mg every 4 weeks for patients weighing at least 30 kg and 20 mg/kg every 4 weeks for those weighing less than 30 kg, until disease progression or unacceptable toxicity or a maximum of 24 months.

A version of this article first appeared on Medscape.com.

Durvalumab (Imfinzi, AstraZeneca) is now approved for adults with limited-stage small cell lung cancer (LS-SCLC) whose disease has not progressed after treatment with concurrent platinum-based chemotherapy and radiation therapy.

The Food and Drug Administration approval makes the monoclonal antibody — which is already approved for multiple tumor types — the first immunotherapy regimen approved in this setting, AstraZeneca noted in a press release.

“Durvalumab is the first and only systemic treatment following curative-intent, platinum-based chemoradiotherapy to show improved survival for patients with this aggressive form of lung cancer,” international coordinating investigator on the trial, Suresh Senan, PhD, stated in the press release. “This finding represents the first advance for this disease in 4 decades.”

Approval, which followed Priority Review and Breakthrough Therapy Designation, was based on findings from the phase 3 ADRIATIC trial showing a 27% reduction in the risk for death with durvalumab vs placebo.

Findings from the trial were reported during a plenary session at the 2024 American Society of Clinical Oncology conference, and subsequently published in The New England Journal of Medicine.

In 730 patients with LS-SCLC who were randomized 1:1:1 to receive single-agent durvalumab, durvalumab in combination with tremelimumab, or placebo, overall survival (OS) and progression-free survival (PFS) were significantly improved with durvalumab alone vs placebo (hazard ratio, 0.73 and 0.76, for OS and PFS, respectively). Median OS was 55.9 months vs 33.4 months with durvalumab vs placebo, and PFS was 16.6 vs 9.2 months, respectively.

Senan, a professor of clinical experimental radiotherapy at the Amsterdam University Medical Center in the Netherlands, noted in the press release that 57% of patients were still alive at 3 years after being treated with durvalumab, which underscores the practice-changing potential of this medicine in this setting.

“This new treatment option is a game changer for patients with limited-stage small cell lung cancer, a disease known for its high rate of recurrence,” Dusty Donaldson, founder and executive director of the nonprofit advocacy organization LiveLung, stated in the release. “Historically, more often than not, clinical trials to identify new treatment options for this type of cancer have failed to show benefit. We are therefore so excited that many more people will now have the opportunity to access this immunotherapy treatment that holds the potential to significantly improve outcomes.”

Adverse reactions occurring in at least 20% of patients in the ADRIATIC trial included pneumonitis or radiation pneumonitis and fatigue.

The recommended durvalumab dose, according to prescribing information, is 1500 mg every 4 weeks for patients weighing at least 30 kg and 20 mg/kg every 4 weeks for those weighing less than 30 kg, until disease progression or unacceptable toxicity or a maximum of 24 months.

A version of this article first appeared on Medscape.com.

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Nonmelanoma Skin Cancer Risk May Be Reduced in Patients on PCSK9 Inhibitors

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TOPLINE:

Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, lipid-lowering drugs, were associated with a 22% lower risk for nonmelanoma skin cancer (NMSC) in patients with atherosclerotic cardiovascular disease (ASCVD), an effect that was particularly significant among men, those older than 65 years, and those with immunosuppression.

METHODOLOGY:

  • To evaluate the risk for NMSC — basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) — in patients with ASCVD on PCSK9 inhibitors, researchers analyzed data from the US Collaborative Network in the TriNetX database of adults aged ≥ 40 years with ASCVD who received statin therapy between 2016 and 2022.
  • A total of 73,636 patients were included, divided equally between those receiving a PCSK9 inhibitor (evolocumab, alirocumab, or inclisiran) plus statin therapy and the control group (those on statin therapy only).
  • The analysis used propensity score matching for head-to-head comparisons, with hazard ratios (HRs) estimated using Cox proportional hazard models.
  • Stratified analyses examined outcomes by age, sex, Fitzpatrick skin type, and immune status. (Immunosuppressed patients were those treated with immunosuppressants for more than 90 days in the year before the index date — the date when exposed patients were first prescribed a PCSK9 inhibitor, which was also index date for matched patients in the statin-only group.)

TAKEAWAY:

  • Patients with ASCVD in the PCSK9 group showed significantly lower risks for NMSC (HR, 0.78; 95% CI, 0.71-0.87), BCC (HR, 0.78; 95% CI, 0.69-0.89), and SCC (HR, 0.79; 95% CI, 0.67-0.93) than control individuals on a statin only (P < .001 for all three).
  • Both evolocumab and alirocumab demonstrated similar protective effects against the development of NMSC.
  • The reduced risk for NMSC was particularly notable among patients aged 65-79 years (HR, 0.75; 95% CI, 0.66-0.86) and those aged ≥ 80 years (HR, 0.74; 95% CI, 0.60-0.91).
  • Men showed a more pronounced reduction in the risk for NMSC (HR, 0.73; 95% CI, 0.64-0.83) than women (HR, 0.93; 95% CI, 0.78-1.11). The effect on lowering NMSC risk was also evident among immunosuppressed patients in the PCSK9 group (HR, 0.68; 95% CI, 0.60-0.75).

IN PRACTICE:

“The findings suggest the promising pleiotropic effect of PCSK9 inhibitors on the chemoprevention of NMSC,” the study authors wrote. Referring to previous studies that “provided mechanistic clues to our findings,” they added that “further studies are required to investigate the underlying mechanisms and establish causality.”

SOURCE:

The study was led by Cheng-Yuan Li, Taipei Veterans General Hospital, Taipei, Taiwan, and was published online in The British Journal of Dermatology.

LIMITATIONS:

Electronic health records lack information on sun protection habits, family history of skin cancer, diet, body mass index, and air pollution exposure, risk factors for NMSC. The study also lacked detailed information on enrollees’ lipid profiles and was focused mostly on patients in the United States, limiting the generalizability of the findings to other regions.

DISCLOSURES:

The study was supported by grants from Taipei Veterans General Hospital and the Ministry of Science and Technology, Taiwan. The authors reported no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

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TOPLINE:

Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, lipid-lowering drugs, were associated with a 22% lower risk for nonmelanoma skin cancer (NMSC) in patients with atherosclerotic cardiovascular disease (ASCVD), an effect that was particularly significant among men, those older than 65 years, and those with immunosuppression.

METHODOLOGY:

  • To evaluate the risk for NMSC — basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) — in patients with ASCVD on PCSK9 inhibitors, researchers analyzed data from the US Collaborative Network in the TriNetX database of adults aged ≥ 40 years with ASCVD who received statin therapy between 2016 and 2022.
  • A total of 73,636 patients were included, divided equally between those receiving a PCSK9 inhibitor (evolocumab, alirocumab, or inclisiran) plus statin therapy and the control group (those on statin therapy only).
  • The analysis used propensity score matching for head-to-head comparisons, with hazard ratios (HRs) estimated using Cox proportional hazard models.
  • Stratified analyses examined outcomes by age, sex, Fitzpatrick skin type, and immune status. (Immunosuppressed patients were those treated with immunosuppressants for more than 90 days in the year before the index date — the date when exposed patients were first prescribed a PCSK9 inhibitor, which was also index date for matched patients in the statin-only group.)

TAKEAWAY:

  • Patients with ASCVD in the PCSK9 group showed significantly lower risks for NMSC (HR, 0.78; 95% CI, 0.71-0.87), BCC (HR, 0.78; 95% CI, 0.69-0.89), and SCC (HR, 0.79; 95% CI, 0.67-0.93) than control individuals on a statin only (P < .001 for all three).
  • Both evolocumab and alirocumab demonstrated similar protective effects against the development of NMSC.
  • The reduced risk for NMSC was particularly notable among patients aged 65-79 years (HR, 0.75; 95% CI, 0.66-0.86) and those aged ≥ 80 years (HR, 0.74; 95% CI, 0.60-0.91).
  • Men showed a more pronounced reduction in the risk for NMSC (HR, 0.73; 95% CI, 0.64-0.83) than women (HR, 0.93; 95% CI, 0.78-1.11). The effect on lowering NMSC risk was also evident among immunosuppressed patients in the PCSK9 group (HR, 0.68; 95% CI, 0.60-0.75).

IN PRACTICE:

“The findings suggest the promising pleiotropic effect of PCSK9 inhibitors on the chemoprevention of NMSC,” the study authors wrote. Referring to previous studies that “provided mechanistic clues to our findings,” they added that “further studies are required to investigate the underlying mechanisms and establish causality.”

SOURCE:

The study was led by Cheng-Yuan Li, Taipei Veterans General Hospital, Taipei, Taiwan, and was published online in The British Journal of Dermatology.

LIMITATIONS:

Electronic health records lack information on sun protection habits, family history of skin cancer, diet, body mass index, and air pollution exposure, risk factors for NMSC. The study also lacked detailed information on enrollees’ lipid profiles and was focused mostly on patients in the United States, limiting the generalizability of the findings to other regions.

DISCLOSURES:

The study was supported by grants from Taipei Veterans General Hospital and the Ministry of Science and Technology, Taiwan. The authors reported no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors, lipid-lowering drugs, were associated with a 22% lower risk for nonmelanoma skin cancer (NMSC) in patients with atherosclerotic cardiovascular disease (ASCVD), an effect that was particularly significant among men, those older than 65 years, and those with immunosuppression.

METHODOLOGY:

  • To evaluate the risk for NMSC — basal cell carcinoma (BCC) and squamous cell carcinoma (SCC) — in patients with ASCVD on PCSK9 inhibitors, researchers analyzed data from the US Collaborative Network in the TriNetX database of adults aged ≥ 40 years with ASCVD who received statin therapy between 2016 and 2022.
  • A total of 73,636 patients were included, divided equally between those receiving a PCSK9 inhibitor (evolocumab, alirocumab, or inclisiran) plus statin therapy and the control group (those on statin therapy only).
  • The analysis used propensity score matching for head-to-head comparisons, with hazard ratios (HRs) estimated using Cox proportional hazard models.
  • Stratified analyses examined outcomes by age, sex, Fitzpatrick skin type, and immune status. (Immunosuppressed patients were those treated with immunosuppressants for more than 90 days in the year before the index date — the date when exposed patients were first prescribed a PCSK9 inhibitor, which was also index date for matched patients in the statin-only group.)

TAKEAWAY:

  • Patients with ASCVD in the PCSK9 group showed significantly lower risks for NMSC (HR, 0.78; 95% CI, 0.71-0.87), BCC (HR, 0.78; 95% CI, 0.69-0.89), and SCC (HR, 0.79; 95% CI, 0.67-0.93) than control individuals on a statin only (P < .001 for all three).
  • Both evolocumab and alirocumab demonstrated similar protective effects against the development of NMSC.
  • The reduced risk for NMSC was particularly notable among patients aged 65-79 years (HR, 0.75; 95% CI, 0.66-0.86) and those aged ≥ 80 years (HR, 0.74; 95% CI, 0.60-0.91).
  • Men showed a more pronounced reduction in the risk for NMSC (HR, 0.73; 95% CI, 0.64-0.83) than women (HR, 0.93; 95% CI, 0.78-1.11). The effect on lowering NMSC risk was also evident among immunosuppressed patients in the PCSK9 group (HR, 0.68; 95% CI, 0.60-0.75).

IN PRACTICE:

“The findings suggest the promising pleiotropic effect of PCSK9 inhibitors on the chemoprevention of NMSC,” the study authors wrote. Referring to previous studies that “provided mechanistic clues to our findings,” they added that “further studies are required to investigate the underlying mechanisms and establish causality.”

SOURCE:

The study was led by Cheng-Yuan Li, Taipei Veterans General Hospital, Taipei, Taiwan, and was published online in The British Journal of Dermatology.

LIMITATIONS:

Electronic health records lack information on sun protection habits, family history of skin cancer, diet, body mass index, and air pollution exposure, risk factors for NMSC. The study also lacked detailed information on enrollees’ lipid profiles and was focused mostly on patients in the United States, limiting the generalizability of the findings to other regions.

DISCLOSURES:

The study was supported by grants from Taipei Veterans General Hospital and the Ministry of Science and Technology, Taiwan. The authors reported no conflicts of interest.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

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Lung CT Can Detect Coronary Artery Disease, Predict Death

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Fri, 12/06/2024 - 13:54

Lung cancer screening with low-dose CT can detect extensive coronary artery calcium (CAC), an independent predictor of all-cause death and cardiovascular events, new research suggested.

“The high prevalence of asymptomatic coronary artery disease (83%) was surprising, as was the prevalence of extensive CAC (30%),” principal investigator Gary Small, MBChB, PhD, a cardiologist at the University of Ottawa Heart Institute in Ontario, Canada, said in an interview.

“The size of effect was also surprising, as was the persistence of the effect even in the presence of elevated mortality risk from other causes,” he said. “Extensive coronary disease was associated with a twofold increase in risk for death or cardiovascular events over 4 years of follow-up,” even after adjustment for risk for death from cancer and other comorbidities such as chronic obstructive pulmonary disease.

“CAC as reported on chest CT exams is often ignored and not factored into clinical practice,” he noted. “The presence of CAC, however, provides a very real and very personal perspective on an individual’s cardiovascular risk. It is a true example of personalized medicine.”

The study was published online in The Canadian Medical Association Journal.

 

Potential Risk Reduction 

In March 2017, Ontario Health launched a pilot low-dose CT lung cancer screening program for high-risk individuals between the ages of 55 and 74 years, Small explained. As CAC, a marker of coronary artery disease, is seen easily during such a scan, the researchers analyzed the lung CTs to determine the prevalence of coronary artery disease and whether CAC was associated with increased risk.

The team quantified CAC using an estimated Agatston score and identified the composite primary outcome of all-cause death and cardiovascular events using linked electronic medical record data from Ottawa Hospital up to December 2023. Among the 1486 people who underwent screening (mean age, 66 years; 52% men; 68% current smokers), CAC was detected in 1232 (82.9%). CAC was mild to moderate in 793 participants (53.4%) and extensive in 439 (29.5%). No CAC was detected in 254 (17.1%) participants.

At follow-up, 78 participants (5.2%) experienced the primary composite outcome, including 39 (8.9%) with extensive CAC, 32 (4.0%) with mild to moderate CAC, and 7 (2.8%) with no CAC.

A total of 49 deaths occurred, including 16 cardiovascular deaths and 19 cancer deaths, of which 10 were from lung cancer. Cardiovascular events included sudden cardiac death (eight participants), fatal stroke (six participants), and one each from heart failure and peripheral vascular disease.

On multivariable analysis, extensive CAC was associated with the composite primary outcome (adjusted hazard ratio [aHR], 2.13), all-cause mortality (aHR, 2.39), and cardiovascular events (aHR, 2.06).

Extensive CAC remained predictive of cardiovascular events even after adjustment for noncardiovascular death as a competing risk (HR, 2.05).

“Our data highlight to lung cancer screening professionals the prevalence of this silent risk factor and re-emphasize the importance of this finding [ie, CAC] as an opportunity for risk reduction,” Small said.

“In terms of next steps, the journey toward cardiovascular risk reduction begins with a clear report of CAC on the lung cancer screening record,” he noted. “Following this step, professionals involved in the lung cancer screening program might consider a local management pathway to ensure that this opportunity for health improvement is not lost or ignored. Preventive medicine of this type would typically involve primary care.”

 

Managing Other Findings

Commenting on the study, Anna Bader, MD, assistant professor of radiology and biomedical imaging at the Yale School of Medicine in New Haven, Connecticut, said that “low-dose CT for lung cancer screening offers valuable insights beyond nodule detection, with CAC being among the most significant incidental findings.”

However, she added, a “robust mechanism” to effectively manage other findings — such as thoracic aortic disease, low bone density, and abnormalities in the thyroid or upper abdominal organs — without overdiagnosis, is needed. A mechanism also is needed to notify cardiologists or primary care providers about severe CAC findings.

Challenges that need to be overcome before such mechanisms can be put in place, she said, “include ensuring standardized CAC reporting, avoiding overburdening healthcare providers, mitigating the risk of excessive downstream testing, and ensuring equitable access to follow-up care for underserved and rural communities.”

Providers involved in lung cancer screening “must be trained to recognize the importance of CAC findings and act upon them,” she added. “Awareness campaigns or continuing medical education modules could address this.”

Multidisciplinary lung cancer screening programs can help with patient education, she noted. “Clear communication about potential findings, including the significance of incidental CAC, should be prioritized and addressed proactively, ideally before the exam, to enhance patient understanding and engagement.”

Matthew Tomey, MD, assistant professor of medicine at the Icahn School of Medicine at Mount Sinai in New York City, said that, “as a practicing cardiologist, I find it very helpful to look at my patients’ recent or past CT scans to look for vascular calcification. Whether or not a scan is specifically protocoled as a cardiac study, we can often appreciate vascular calcification when it is present. I would encourage every physician involved in helping their patients to prevent heart disease to take advantage of looking at any prior CT scans for evidence of vascular calcification.

“Systems of care to facilitate recognition of patients with incidentally discovered vascular calcification would be welcome and, on a large scale, could help prevent cardiovascular events,” he noted. “Such a system might involve facilitating referral to a prevention specialist. It could involve evidence-based guidance for referring physicians who ordered scans.”

Like Bader, he noted the importance of patient education, adding that it could be quite powerful. “We should be doing more to empower our patients to understand the findings of their imaging and to give them actionable, evidence-based guidance on how they can promote their own cardiovascular health,” he concluded.

No funding for the study was reported. Small reported receiving a research grant for amyloid research from Pfizer and honoraria from Pfizer and Alnylam (all paid to the institution, outside the submitted work). Bader and Tomey declared no relevant conflicts.

A version of this article first appeared on Medscape.com.

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Lung cancer screening with low-dose CT can detect extensive coronary artery calcium (CAC), an independent predictor of all-cause death and cardiovascular events, new research suggested.

“The high prevalence of asymptomatic coronary artery disease (83%) was surprising, as was the prevalence of extensive CAC (30%),” principal investigator Gary Small, MBChB, PhD, a cardiologist at the University of Ottawa Heart Institute in Ontario, Canada, said in an interview.

“The size of effect was also surprising, as was the persistence of the effect even in the presence of elevated mortality risk from other causes,” he said. “Extensive coronary disease was associated with a twofold increase in risk for death or cardiovascular events over 4 years of follow-up,” even after adjustment for risk for death from cancer and other comorbidities such as chronic obstructive pulmonary disease.

“CAC as reported on chest CT exams is often ignored and not factored into clinical practice,” he noted. “The presence of CAC, however, provides a very real and very personal perspective on an individual’s cardiovascular risk. It is a true example of personalized medicine.”

The study was published online in The Canadian Medical Association Journal.

 

Potential Risk Reduction 

In March 2017, Ontario Health launched a pilot low-dose CT lung cancer screening program for high-risk individuals between the ages of 55 and 74 years, Small explained. As CAC, a marker of coronary artery disease, is seen easily during such a scan, the researchers analyzed the lung CTs to determine the prevalence of coronary artery disease and whether CAC was associated with increased risk.

The team quantified CAC using an estimated Agatston score and identified the composite primary outcome of all-cause death and cardiovascular events using linked electronic medical record data from Ottawa Hospital up to December 2023. Among the 1486 people who underwent screening (mean age, 66 years; 52% men; 68% current smokers), CAC was detected in 1232 (82.9%). CAC was mild to moderate in 793 participants (53.4%) and extensive in 439 (29.5%). No CAC was detected in 254 (17.1%) participants.

At follow-up, 78 participants (5.2%) experienced the primary composite outcome, including 39 (8.9%) with extensive CAC, 32 (4.0%) with mild to moderate CAC, and 7 (2.8%) with no CAC.

A total of 49 deaths occurred, including 16 cardiovascular deaths and 19 cancer deaths, of which 10 were from lung cancer. Cardiovascular events included sudden cardiac death (eight participants), fatal stroke (six participants), and one each from heart failure and peripheral vascular disease.

On multivariable analysis, extensive CAC was associated with the composite primary outcome (adjusted hazard ratio [aHR], 2.13), all-cause mortality (aHR, 2.39), and cardiovascular events (aHR, 2.06).

Extensive CAC remained predictive of cardiovascular events even after adjustment for noncardiovascular death as a competing risk (HR, 2.05).

“Our data highlight to lung cancer screening professionals the prevalence of this silent risk factor and re-emphasize the importance of this finding [ie, CAC] as an opportunity for risk reduction,” Small said.

“In terms of next steps, the journey toward cardiovascular risk reduction begins with a clear report of CAC on the lung cancer screening record,” he noted. “Following this step, professionals involved in the lung cancer screening program might consider a local management pathway to ensure that this opportunity for health improvement is not lost or ignored. Preventive medicine of this type would typically involve primary care.”

 

Managing Other Findings

Commenting on the study, Anna Bader, MD, assistant professor of radiology and biomedical imaging at the Yale School of Medicine in New Haven, Connecticut, said that “low-dose CT for lung cancer screening offers valuable insights beyond nodule detection, with CAC being among the most significant incidental findings.”

However, she added, a “robust mechanism” to effectively manage other findings — such as thoracic aortic disease, low bone density, and abnormalities in the thyroid or upper abdominal organs — without overdiagnosis, is needed. A mechanism also is needed to notify cardiologists or primary care providers about severe CAC findings.

Challenges that need to be overcome before such mechanisms can be put in place, she said, “include ensuring standardized CAC reporting, avoiding overburdening healthcare providers, mitigating the risk of excessive downstream testing, and ensuring equitable access to follow-up care for underserved and rural communities.”

Providers involved in lung cancer screening “must be trained to recognize the importance of CAC findings and act upon them,” she added. “Awareness campaigns or continuing medical education modules could address this.”

Multidisciplinary lung cancer screening programs can help with patient education, she noted. “Clear communication about potential findings, including the significance of incidental CAC, should be prioritized and addressed proactively, ideally before the exam, to enhance patient understanding and engagement.”

Matthew Tomey, MD, assistant professor of medicine at the Icahn School of Medicine at Mount Sinai in New York City, said that, “as a practicing cardiologist, I find it very helpful to look at my patients’ recent or past CT scans to look for vascular calcification. Whether or not a scan is specifically protocoled as a cardiac study, we can often appreciate vascular calcification when it is present. I would encourage every physician involved in helping their patients to prevent heart disease to take advantage of looking at any prior CT scans for evidence of vascular calcification.

“Systems of care to facilitate recognition of patients with incidentally discovered vascular calcification would be welcome and, on a large scale, could help prevent cardiovascular events,” he noted. “Such a system might involve facilitating referral to a prevention specialist. It could involve evidence-based guidance for referring physicians who ordered scans.”

Like Bader, he noted the importance of patient education, adding that it could be quite powerful. “We should be doing more to empower our patients to understand the findings of their imaging and to give them actionable, evidence-based guidance on how they can promote their own cardiovascular health,” he concluded.

No funding for the study was reported. Small reported receiving a research grant for amyloid research from Pfizer and honoraria from Pfizer and Alnylam (all paid to the institution, outside the submitted work). Bader and Tomey declared no relevant conflicts.

A version of this article first appeared on Medscape.com.

Lung cancer screening with low-dose CT can detect extensive coronary artery calcium (CAC), an independent predictor of all-cause death and cardiovascular events, new research suggested.

“The high prevalence of asymptomatic coronary artery disease (83%) was surprising, as was the prevalence of extensive CAC (30%),” principal investigator Gary Small, MBChB, PhD, a cardiologist at the University of Ottawa Heart Institute in Ontario, Canada, said in an interview.

“The size of effect was also surprising, as was the persistence of the effect even in the presence of elevated mortality risk from other causes,” he said. “Extensive coronary disease was associated with a twofold increase in risk for death or cardiovascular events over 4 years of follow-up,” even after adjustment for risk for death from cancer and other comorbidities such as chronic obstructive pulmonary disease.

“CAC as reported on chest CT exams is often ignored and not factored into clinical practice,” he noted. “The presence of CAC, however, provides a very real and very personal perspective on an individual’s cardiovascular risk. It is a true example of personalized medicine.”

The study was published online in The Canadian Medical Association Journal.

 

Potential Risk Reduction 

In March 2017, Ontario Health launched a pilot low-dose CT lung cancer screening program for high-risk individuals between the ages of 55 and 74 years, Small explained. As CAC, a marker of coronary artery disease, is seen easily during such a scan, the researchers analyzed the lung CTs to determine the prevalence of coronary artery disease and whether CAC was associated with increased risk.

The team quantified CAC using an estimated Agatston score and identified the composite primary outcome of all-cause death and cardiovascular events using linked electronic medical record data from Ottawa Hospital up to December 2023. Among the 1486 people who underwent screening (mean age, 66 years; 52% men; 68% current smokers), CAC was detected in 1232 (82.9%). CAC was mild to moderate in 793 participants (53.4%) and extensive in 439 (29.5%). No CAC was detected in 254 (17.1%) participants.

At follow-up, 78 participants (5.2%) experienced the primary composite outcome, including 39 (8.9%) with extensive CAC, 32 (4.0%) with mild to moderate CAC, and 7 (2.8%) with no CAC.

A total of 49 deaths occurred, including 16 cardiovascular deaths and 19 cancer deaths, of which 10 were from lung cancer. Cardiovascular events included sudden cardiac death (eight participants), fatal stroke (six participants), and one each from heart failure and peripheral vascular disease.

On multivariable analysis, extensive CAC was associated with the composite primary outcome (adjusted hazard ratio [aHR], 2.13), all-cause mortality (aHR, 2.39), and cardiovascular events (aHR, 2.06).

Extensive CAC remained predictive of cardiovascular events even after adjustment for noncardiovascular death as a competing risk (HR, 2.05).

“Our data highlight to lung cancer screening professionals the prevalence of this silent risk factor and re-emphasize the importance of this finding [ie, CAC] as an opportunity for risk reduction,” Small said.

“In terms of next steps, the journey toward cardiovascular risk reduction begins with a clear report of CAC on the lung cancer screening record,” he noted. “Following this step, professionals involved in the lung cancer screening program might consider a local management pathway to ensure that this opportunity for health improvement is not lost or ignored. Preventive medicine of this type would typically involve primary care.”

 

Managing Other Findings

Commenting on the study, Anna Bader, MD, assistant professor of radiology and biomedical imaging at the Yale School of Medicine in New Haven, Connecticut, said that “low-dose CT for lung cancer screening offers valuable insights beyond nodule detection, with CAC being among the most significant incidental findings.”

However, she added, a “robust mechanism” to effectively manage other findings — such as thoracic aortic disease, low bone density, and abnormalities in the thyroid or upper abdominal organs — without overdiagnosis, is needed. A mechanism also is needed to notify cardiologists or primary care providers about severe CAC findings.

Challenges that need to be overcome before such mechanisms can be put in place, she said, “include ensuring standardized CAC reporting, avoiding overburdening healthcare providers, mitigating the risk of excessive downstream testing, and ensuring equitable access to follow-up care for underserved and rural communities.”

Providers involved in lung cancer screening “must be trained to recognize the importance of CAC findings and act upon them,” she added. “Awareness campaigns or continuing medical education modules could address this.”

Multidisciplinary lung cancer screening programs can help with patient education, she noted. “Clear communication about potential findings, including the significance of incidental CAC, should be prioritized and addressed proactively, ideally before the exam, to enhance patient understanding and engagement.”

Matthew Tomey, MD, assistant professor of medicine at the Icahn School of Medicine at Mount Sinai in New York City, said that, “as a practicing cardiologist, I find it very helpful to look at my patients’ recent or past CT scans to look for vascular calcification. Whether or not a scan is specifically protocoled as a cardiac study, we can often appreciate vascular calcification when it is present. I would encourage every physician involved in helping their patients to prevent heart disease to take advantage of looking at any prior CT scans for evidence of vascular calcification.

“Systems of care to facilitate recognition of patients with incidentally discovered vascular calcification would be welcome and, on a large scale, could help prevent cardiovascular events,” he noted. “Such a system might involve facilitating referral to a prevention specialist. It could involve evidence-based guidance for referring physicians who ordered scans.”

Like Bader, he noted the importance of patient education, adding that it could be quite powerful. “We should be doing more to empower our patients to understand the findings of their imaging and to give them actionable, evidence-based guidance on how they can promote their own cardiovascular health,” he concluded.

No funding for the study was reported. Small reported receiving a research grant for amyloid research from Pfizer and honoraria from Pfizer and Alnylam (all paid to the institution, outside the submitted work). Bader and Tomey declared no relevant conflicts.

A version of this article first appeared on Medscape.com.

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FROM THE CANADIAN MEDICAL ASSOCIATION JOURNAL

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Internet Use May Boost Mental Health in Later Life

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TOPLINE:

Internet use is associated with fewer depressive symptoms, higher life satisfaction, and better self-reported health among adults aged 50 years or older across 23 countries than nonuse, a new cohort study suggests.

METHODOLOGY:

  • Data were examined for more than 87,000 adults aged 50 years or older across 23 countries and from six aging cohorts.
  • Researchers examined the potential association between internet use and mental health outcomes, including depressive symptoms, life satisfaction, and self-reported health.
  • Polygenic scores were used for subset analysis to stratify participants from England and the United States according to their genetic risk for depression.
  • Participants were followed up for a median of 6 years.

TAKEAWAY:

  • Internet use was linked to consistent benefits across countries, including lower depressive symptoms (pooled average marginal effect [AME], –0.09; 95% CI, –0.12 to –0.07), higher life satisfaction (pooled AME, 0.07; 95% CI, 0.05-0.10), and better self-reported health (pooled AME, 0.15; 95% CI, 0.12-0.17).
  • Frequent internet users showed better mental health outcomes than nonusers, and daily internet users showed significant improvements in depressive symptoms and self-reported health in England and the United States.
  • Each additional wave of internet use was associated with reduced depressive symptoms (pooled AME, –0.06; 95% CI, –0.09 to –0.04) and improved life satisfaction (pooled AME, 0.05; 95% CI, 0.03-0.07).
  • Benefits of internet use were observed across all genetic risk categories for depression in England and the United States, suggesting potential utility regardless of genetic predisposition.

IN PRACTICE:

“Our findings are relevant to public health policies and practices in promoting mental health in later life through the internet, especially in countries with limited internet access and mental health services,” the investigators wrote.

SOURCE:

The study was led by Yan Luo, Department of Data Science, City University of Hong Kong, Hong Kong, China. It was published online November 18 in Nature Human Behaviour.

LIMITATIONS:

The possibility of residual confounding and reverse causation prevented the establishment of direct causality between internet use and mental health. Selection bias may have also existed due to differences in baseline characteristics between the analytic samples and entire populations. Internet use was assessed through self-reported items, which could have led to recall and information bias. Additionally, genetic data were available for participants only from England and the United States.

DISCLOSURES:

The study was funded in part by the National Natural Science Foundation of China. The investigators reported no conflicts of interest.

This article was created using several editorial tools, including artificial intelligence, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

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TOPLINE:

Internet use is associated with fewer depressive symptoms, higher life satisfaction, and better self-reported health among adults aged 50 years or older across 23 countries than nonuse, a new cohort study suggests.

METHODOLOGY:

  • Data were examined for more than 87,000 adults aged 50 years or older across 23 countries and from six aging cohorts.
  • Researchers examined the potential association between internet use and mental health outcomes, including depressive symptoms, life satisfaction, and self-reported health.
  • Polygenic scores were used for subset analysis to stratify participants from England and the United States according to their genetic risk for depression.
  • Participants were followed up for a median of 6 years.

TAKEAWAY:

  • Internet use was linked to consistent benefits across countries, including lower depressive symptoms (pooled average marginal effect [AME], –0.09; 95% CI, –0.12 to –0.07), higher life satisfaction (pooled AME, 0.07; 95% CI, 0.05-0.10), and better self-reported health (pooled AME, 0.15; 95% CI, 0.12-0.17).
  • Frequent internet users showed better mental health outcomes than nonusers, and daily internet users showed significant improvements in depressive symptoms and self-reported health in England and the United States.
  • Each additional wave of internet use was associated with reduced depressive symptoms (pooled AME, –0.06; 95% CI, –0.09 to –0.04) and improved life satisfaction (pooled AME, 0.05; 95% CI, 0.03-0.07).
  • Benefits of internet use were observed across all genetic risk categories for depression in England and the United States, suggesting potential utility regardless of genetic predisposition.

IN PRACTICE:

“Our findings are relevant to public health policies and practices in promoting mental health in later life through the internet, especially in countries with limited internet access and mental health services,” the investigators wrote.

SOURCE:

The study was led by Yan Luo, Department of Data Science, City University of Hong Kong, Hong Kong, China. It was published online November 18 in Nature Human Behaviour.

LIMITATIONS:

The possibility of residual confounding and reverse causation prevented the establishment of direct causality between internet use and mental health. Selection bias may have also existed due to differences in baseline characteristics between the analytic samples and entire populations. Internet use was assessed through self-reported items, which could have led to recall and information bias. Additionally, genetic data were available for participants only from England and the United States.

DISCLOSURES:

The study was funded in part by the National Natural Science Foundation of China. The investigators reported no conflicts of interest.

This article was created using several editorial tools, including artificial intelligence, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

TOPLINE:

Internet use is associated with fewer depressive symptoms, higher life satisfaction, and better self-reported health among adults aged 50 years or older across 23 countries than nonuse, a new cohort study suggests.

METHODOLOGY:

  • Data were examined for more than 87,000 adults aged 50 years or older across 23 countries and from six aging cohorts.
  • Researchers examined the potential association between internet use and mental health outcomes, including depressive symptoms, life satisfaction, and self-reported health.
  • Polygenic scores were used for subset analysis to stratify participants from England and the United States according to their genetic risk for depression.
  • Participants were followed up for a median of 6 years.

TAKEAWAY:

  • Internet use was linked to consistent benefits across countries, including lower depressive symptoms (pooled average marginal effect [AME], –0.09; 95% CI, –0.12 to –0.07), higher life satisfaction (pooled AME, 0.07; 95% CI, 0.05-0.10), and better self-reported health (pooled AME, 0.15; 95% CI, 0.12-0.17).
  • Frequent internet users showed better mental health outcomes than nonusers, and daily internet users showed significant improvements in depressive symptoms and self-reported health in England and the United States.
  • Each additional wave of internet use was associated with reduced depressive symptoms (pooled AME, –0.06; 95% CI, –0.09 to –0.04) and improved life satisfaction (pooled AME, 0.05; 95% CI, 0.03-0.07).
  • Benefits of internet use were observed across all genetic risk categories for depression in England and the United States, suggesting potential utility regardless of genetic predisposition.

IN PRACTICE:

“Our findings are relevant to public health policies and practices in promoting mental health in later life through the internet, especially in countries with limited internet access and mental health services,” the investigators wrote.

SOURCE:

The study was led by Yan Luo, Department of Data Science, City University of Hong Kong, Hong Kong, China. It was published online November 18 in Nature Human Behaviour.

LIMITATIONS:

The possibility of residual confounding and reverse causation prevented the establishment of direct causality between internet use and mental health. Selection bias may have also existed due to differences in baseline characteristics between the analytic samples and entire populations. Internet use was assessed through self-reported items, which could have led to recall and information bias. Additionally, genetic data were available for participants only from England and the United States.

DISCLOSURES:

The study was funded in part by the National Natural Science Foundation of China. The investigators reported no conflicts of interest.

This article was created using several editorial tools, including artificial intelligence, as part of the process. Human editors reviewed this content before publication. A version of this article first appeared on Medscape.com.

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No, Diet and Exercise Are Not Better Than Drugs for Obesity

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They’re literally not better. Idealistically, sure, but literally not. And there’s really no debate. Meaning there’s never been a reproducible diet and exercise intervention that has led to anywhere near the average weight lost by those taking obesity medications. Furthermore, when it comes to the durability of weight lost, the gulf between outcomes with diet and exercise vs obesity medications is even more dramatic.

Looking to the literature, one of the most trotted out studies on lifestyle’s impact on weight over time is the Look AHEAD trial. Before useful obesity medications came on the scene, I trotted it out myself. Why? Because it was heartening when faced with the societal refrain that diet and exercise never worked to be able to show that yes, in fact they do. But how well?

Looking to Look AHEAD’s 4-year data (Obesity [Silver Spring]. 2011 Oct;19[10]:1987-1998), those randomized to the intensive lifestyle initiative arm averaged a 4.7% total body weight loss – an amount that remained the same at 8 years. But I chose 4 years because that’s a better comparison with the semaglutide SELECT trial that revealed at 4 years, the average sustained weight lost was more than double that of Look AHEAD’s, at 10.2%. Meanwhile the recently released SURMOUNT-4 study on tirzepatide reported that at 88 weeks, the average weight lost by participants was a near bariatric surgery level of 25.3% with no signs suggestive of pending regains.

Now maybe you want to cling to the notion that if you just try hard enough, your diet and exercise regime can beat our new meds. Well, it’s difficult to think of a more miserable, often actual vomit-inducing intervention, than the spectacle that used to air weekly on prime time called The Biggest Loser, where participants lived on a ranch and were berated and exercised all day long for the chance to lose the most and win a quarter of a million dollars. But even there, the meds prove to be superior. Although the short-term Biggest Loser data do look markedly better than meds (and than bariatric surgery), whereby the average participant lost 48.8% of their body weight during the grueling 7-month long, 24/7 competition, by postcompetition year 6, the average weight lost dropped to 12.7%.

Yet on November 26, when word came out that Medicare is likely to extend coverage to obesity medications for far more Americans, one of the most common refrains was something along the lines of yes, lifestyle modification is the best choice for dealing with obesity but it’s good that there will be medication options for those where that’s insufficient.

What?

The only reason that the world isn’t comfortable with the eminently provable truth that diet and exercise are inferior to obesity medications for weight management is weight bias. The message is that people simply aren’t trying hard enough. This despite our comfort in knowing that medications have more of an impact than lifestyle on pretty much every other chronic disease. Nor can I recall any other circumstance when coverage of a remarkably effective drug was qualified by the suggestion that known-to-be-inferior interventions are still the best or favored choice.

At this point, obesity medications are plainly the first-line choice of treatment. They provide not only dramatically greater and more durable weight loss than lifestyle interventions, they have also been shown to very significantly reduce the risk for an ever-growing list of other medical concerns including heart attacks, strokes, type 2 diabetes, hypertension, sleep apnea, fatty liver disease, and more, while carrying minimal risk.

Let it also be said that improvements to diet and exercise are worth striving for at any weight, though one should not lose sight of the fact that perpetual, dramatic, intentional, behavior change in the name of health requires vast amounts of wide-ranging privilege to enact — amounts far beyond the average person’s abilities or physiologies (as demonstrated with obesity by decades of disappointing long-term lifestyle outcome data). 

Let it also be said that some people will indeed find success solely through lifestyle and that not every person who meets the medical criteria for any medication’s prescription, including obesity medications, is required or encouraged to take it. The clinician’s job, however, at its most basic, is to inform patients who meet medical use criteria of their options, and if a medication is indicated, to inform them of that medication’s risks and benefits and expected outcomes, to help their patients come to their own treatment decisions.

It’s not a bad thing that we have medications that deliver better outcomes than lifestyle — in fact, it’s terrific, and thankfully that they do is true for pretty much every medical condition for which we have medication. That’s in fact why we have medications! And so this constant refrain of golly-gee wouldn’t it be better if we could just manage obesity with lifestyle changes needs to be put to rest — we literally know it wouldn’t be better, and it’s only weight bias that would lead this evidence-based statement to seem off-putting.

Dr. Freedhoff is Associate Professor, Department of Family Medicine, University of Ottawa, and Medical Director, Bariatric Medical Institute, Ottawa, Ontario, Canada. He reported conflicts of interest with the Bariatric Medical Institute, Constant Health, Novo Nordisk, and Weighty Matters.

A version of this article first appeared on Medscape.com.

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They’re literally not better. Idealistically, sure, but literally not. And there’s really no debate. Meaning there’s never been a reproducible diet and exercise intervention that has led to anywhere near the average weight lost by those taking obesity medications. Furthermore, when it comes to the durability of weight lost, the gulf between outcomes with diet and exercise vs obesity medications is even more dramatic.

Looking to the literature, one of the most trotted out studies on lifestyle’s impact on weight over time is the Look AHEAD trial. Before useful obesity medications came on the scene, I trotted it out myself. Why? Because it was heartening when faced with the societal refrain that diet and exercise never worked to be able to show that yes, in fact they do. But how well?

Looking to Look AHEAD’s 4-year data (Obesity [Silver Spring]. 2011 Oct;19[10]:1987-1998), those randomized to the intensive lifestyle initiative arm averaged a 4.7% total body weight loss – an amount that remained the same at 8 years. But I chose 4 years because that’s a better comparison with the semaglutide SELECT trial that revealed at 4 years, the average sustained weight lost was more than double that of Look AHEAD’s, at 10.2%. Meanwhile the recently released SURMOUNT-4 study on tirzepatide reported that at 88 weeks, the average weight lost by participants was a near bariatric surgery level of 25.3% with no signs suggestive of pending regains.

Now maybe you want to cling to the notion that if you just try hard enough, your diet and exercise regime can beat our new meds. Well, it’s difficult to think of a more miserable, often actual vomit-inducing intervention, than the spectacle that used to air weekly on prime time called The Biggest Loser, where participants lived on a ranch and were berated and exercised all day long for the chance to lose the most and win a quarter of a million dollars. But even there, the meds prove to be superior. Although the short-term Biggest Loser data do look markedly better than meds (and than bariatric surgery), whereby the average participant lost 48.8% of their body weight during the grueling 7-month long, 24/7 competition, by postcompetition year 6, the average weight lost dropped to 12.7%.

Yet on November 26, when word came out that Medicare is likely to extend coverage to obesity medications for far more Americans, one of the most common refrains was something along the lines of yes, lifestyle modification is the best choice for dealing with obesity but it’s good that there will be medication options for those where that’s insufficient.

What?

The only reason that the world isn’t comfortable with the eminently provable truth that diet and exercise are inferior to obesity medications for weight management is weight bias. The message is that people simply aren’t trying hard enough. This despite our comfort in knowing that medications have more of an impact than lifestyle on pretty much every other chronic disease. Nor can I recall any other circumstance when coverage of a remarkably effective drug was qualified by the suggestion that known-to-be-inferior interventions are still the best or favored choice.

At this point, obesity medications are plainly the first-line choice of treatment. They provide not only dramatically greater and more durable weight loss than lifestyle interventions, they have also been shown to very significantly reduce the risk for an ever-growing list of other medical concerns including heart attacks, strokes, type 2 diabetes, hypertension, sleep apnea, fatty liver disease, and more, while carrying minimal risk.

Let it also be said that improvements to diet and exercise are worth striving for at any weight, though one should not lose sight of the fact that perpetual, dramatic, intentional, behavior change in the name of health requires vast amounts of wide-ranging privilege to enact — amounts far beyond the average person’s abilities or physiologies (as demonstrated with obesity by decades of disappointing long-term lifestyle outcome data). 

Let it also be said that some people will indeed find success solely through lifestyle and that not every person who meets the medical criteria for any medication’s prescription, including obesity medications, is required or encouraged to take it. The clinician’s job, however, at its most basic, is to inform patients who meet medical use criteria of their options, and if a medication is indicated, to inform them of that medication’s risks and benefits and expected outcomes, to help their patients come to their own treatment decisions.

It’s not a bad thing that we have medications that deliver better outcomes than lifestyle — in fact, it’s terrific, and thankfully that they do is true for pretty much every medical condition for which we have medication. That’s in fact why we have medications! And so this constant refrain of golly-gee wouldn’t it be better if we could just manage obesity with lifestyle changes needs to be put to rest — we literally know it wouldn’t be better, and it’s only weight bias that would lead this evidence-based statement to seem off-putting.

Dr. Freedhoff is Associate Professor, Department of Family Medicine, University of Ottawa, and Medical Director, Bariatric Medical Institute, Ottawa, Ontario, Canada. He reported conflicts of interest with the Bariatric Medical Institute, Constant Health, Novo Nordisk, and Weighty Matters.

A version of this article first appeared on Medscape.com.

They’re literally not better. Idealistically, sure, but literally not. And there’s really no debate. Meaning there’s never been a reproducible diet and exercise intervention that has led to anywhere near the average weight lost by those taking obesity medications. Furthermore, when it comes to the durability of weight lost, the gulf between outcomes with diet and exercise vs obesity medications is even more dramatic.

Looking to the literature, one of the most trotted out studies on lifestyle’s impact on weight over time is the Look AHEAD trial. Before useful obesity medications came on the scene, I trotted it out myself. Why? Because it was heartening when faced with the societal refrain that diet and exercise never worked to be able to show that yes, in fact they do. But how well?

Looking to Look AHEAD’s 4-year data (Obesity [Silver Spring]. 2011 Oct;19[10]:1987-1998), those randomized to the intensive lifestyle initiative arm averaged a 4.7% total body weight loss – an amount that remained the same at 8 years. But I chose 4 years because that’s a better comparison with the semaglutide SELECT trial that revealed at 4 years, the average sustained weight lost was more than double that of Look AHEAD’s, at 10.2%. Meanwhile the recently released SURMOUNT-4 study on tirzepatide reported that at 88 weeks, the average weight lost by participants was a near bariatric surgery level of 25.3% with no signs suggestive of pending regains.

Now maybe you want to cling to the notion that if you just try hard enough, your diet and exercise regime can beat our new meds. Well, it’s difficult to think of a more miserable, often actual vomit-inducing intervention, than the spectacle that used to air weekly on prime time called The Biggest Loser, where participants lived on a ranch and were berated and exercised all day long for the chance to lose the most and win a quarter of a million dollars. But even there, the meds prove to be superior. Although the short-term Biggest Loser data do look markedly better than meds (and than bariatric surgery), whereby the average participant lost 48.8% of their body weight during the grueling 7-month long, 24/7 competition, by postcompetition year 6, the average weight lost dropped to 12.7%.

Yet on November 26, when word came out that Medicare is likely to extend coverage to obesity medications for far more Americans, one of the most common refrains was something along the lines of yes, lifestyle modification is the best choice for dealing with obesity but it’s good that there will be medication options for those where that’s insufficient.

What?

The only reason that the world isn’t comfortable with the eminently provable truth that diet and exercise are inferior to obesity medications for weight management is weight bias. The message is that people simply aren’t trying hard enough. This despite our comfort in knowing that medications have more of an impact than lifestyle on pretty much every other chronic disease. Nor can I recall any other circumstance when coverage of a remarkably effective drug was qualified by the suggestion that known-to-be-inferior interventions are still the best or favored choice.

At this point, obesity medications are plainly the first-line choice of treatment. They provide not only dramatically greater and more durable weight loss than lifestyle interventions, they have also been shown to very significantly reduce the risk for an ever-growing list of other medical concerns including heart attacks, strokes, type 2 diabetes, hypertension, sleep apnea, fatty liver disease, and more, while carrying minimal risk.

Let it also be said that improvements to diet and exercise are worth striving for at any weight, though one should not lose sight of the fact that perpetual, dramatic, intentional, behavior change in the name of health requires vast amounts of wide-ranging privilege to enact — amounts far beyond the average person’s abilities or physiologies (as demonstrated with obesity by decades of disappointing long-term lifestyle outcome data). 

Let it also be said that some people will indeed find success solely through lifestyle and that not every person who meets the medical criteria for any medication’s prescription, including obesity medications, is required or encouraged to take it. The clinician’s job, however, at its most basic, is to inform patients who meet medical use criteria of their options, and if a medication is indicated, to inform them of that medication’s risks and benefits and expected outcomes, to help their patients come to their own treatment decisions.

It’s not a bad thing that we have medications that deliver better outcomes than lifestyle — in fact, it’s terrific, and thankfully that they do is true for pretty much every medical condition for which we have medication. That’s in fact why we have medications! And so this constant refrain of golly-gee wouldn’t it be better if we could just manage obesity with lifestyle changes needs to be put to rest — we literally know it wouldn’t be better, and it’s only weight bias that would lead this evidence-based statement to seem off-putting.

Dr. Freedhoff is Associate Professor, Department of Family Medicine, University of Ottawa, and Medical Director, Bariatric Medical Institute, Ottawa, Ontario, Canada. He reported conflicts of interest with the Bariatric Medical Institute, Constant Health, Novo Nordisk, and Weighty Matters.

A version of this article first appeared on Medscape.com.

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New Cancer Vaccines on the Horizon: Renewed Hope or Hype?

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Vaccines for treating and preventing cancer have long been considered a holy grail in oncology.

But aside from a few notable exceptions — including the human papillomavirus (HPV) vaccine, which has dramatically reduced the incidence of HPV-related cancers, and a Bacillus Calmette-Guerin vaccine, which helps prevent early-stage bladder cancer recurrence — most have failed to deliver.

Following a string of disappointments over the past decade, recent advances in the immunotherapy space are bringing renewed hope for progress.

In an American Association for Cancer Research (AACR) series earlier in 2024, Catherine J. Wu, MD, predicted big strides for cancer vaccines, especially for personalized vaccines that target patient-specific neoantigens — the proteins that form on cancer cells — as well as vaccines that can treat diverse tumor types.

“A focus on neoantigens that arise from driver mutations in different tumor types could allow us to make progress in creating off-the-shelf vaccines,” said Wu, the Lavine Family Chair of Preventative Cancer Therapies at Dana-Farber Cancer Institute and a professor of medicine at Harvard Medical School, both in Boston, Massachusetts.

A prime example is a personalized, messenger RNA (mRNA)–based vaccine designed to prevent melanoma recurrence. The mRNA-4157 vaccine encodes up to 34 different patient-specific neoantigens.

“This is one of the most exciting developments in modern cancer therapy,” said Lawrence Young, a virologist and professor of molecular oncology at the University of Warwick, Coventry, England, who commented on the investigational vaccine via the UK-based Science Media Centre.

Other promising options are on the horizon as well. In August, BioNTech announced a phase 1 global trial to study BNT116 — a vaccine to treat non–small cell lung cancer (NSCLC). BNT116, like mRNA-4157, targets specific antigens in the lung cancer cells.

“This technology is the next big phase of cancer treatment,” Siow Ming Lee, MD, a consultant medical oncologist at University College London Hospitals in England, which is leading the UK trial for the lung cancer and melanoma vaccines, told The Guardian. “We are now entering this very exciting new era of mRNA-based immunotherapy clinical trials to investigate the treatment of lung cancer.”

Still, these predictions have a familiar ring. While the prospects are exciting, delivering on them is another story. There are simply no guarantees these strategies will work as hoped.

 

Then: Where We Were

Cancer vaccine research began to ramp up in the 2000s, and in 2006, the first-generation HPV vaccine, Gardasil, was approved. Gardasil prevents infection from four strains of HPV that cause about 80% of cervical cancer cases.

In 2010, the Food and Drug Administration approved sipuleucel-T, the first therapeutic cancer vaccine, which improved overall survival in patients with hormone-refractory prostate cancer.

Researchers predicted this approval would “pave the way for developing innovative, next generation of vaccines with enhanced antitumor potency.”

In a 2015 AACR research forecast report, Drew Pardoll, MD, PhD, co-director of the Cancer Immunology and Hematopoiesis Program at Johns Hopkins University, Baltimore, Maryland, said that “we can expect to see encouraging results from studies using cancer vaccines.”

Despite the excitement surrounding cancer vaccines alongside a few successes, the next decade brought a longer string of late-phase disappointments.

In 2016, the phase 3 ACT IV trial of a therapeutic vaccine to treat glioblastoma multiforme (CDX-110) was terminated after it failed to demonstrate improved survival.

In 2017, a phase 3 trial of the therapeutic pancreatic cancer vaccine, GVAX, was stopped early for lack of efficacy.

That year, an attenuated Listeria monocytogenes vaccine to treat pancreatic cancer and mesothelioma also failed to come to fruition. In late 2017, concerns over listeria infections prompted Aduro Biotech to cancel its listeria-based cancer treatment program.

In 2018, a phase 3 trial of belagenpumatucel-L, a therapeutic NSCLC vaccine, failed to demonstrate a significant improvement in survival and further study was discontinued.

And in 2019, a vaccine targeting MAGE-A3, a cancer-testis antigen present in multiple tumor types, failed to meet endpoints for improved survival in a phase 3 trial, leading to discontinuation of the vaccine program.

But these disappointments and failures are normal parts of medical research and drug development and have allowed for incremental advances that helped fuel renewed interest and hope for cancer vaccines, when the timing was right, explained vaccine pioneer Larry W. Kwak, MD, PhD, deputy director of the Comprehensive Cancer Center at City of Hope, Duarte, California.

When it comes to vaccine progress, timing makes a difference. In 2011, Kwak and colleagues published promising phase 3 trial results on a personalized vaccine. The vaccine was a patient-specific tumor-derived antigen for patients with follicular lymphoma in their first remission following chemotherapy. Patients who received the vaccine demonstrated significantly longer disease-free survival.

But, at the time, personalized vaccines faced strong headwinds due, largely, to high costs, and commercial interest failed to materialize. “That’s been the major hurdle for a long time,” said Kwak.

Now, however, interest has returned alongside advances in technology and research. The big shift has been the emergence of lower-cost rapid-production mRNA and DNA platforms and a better understanding of how vaccines and potent immune stimulants, like checkpoint inhibitors, can work together to improve outcomes, he explained.

“The timing wasn’t right” back then, Kwak noted. “Now, it’s a different environment and a different time.”

 

A Turning Point?

Indeed, a decade later, cancer vaccine development appears to be headed in a more promising direction.

Among key cancer vaccines to watch is the mRNA-4157 vaccine, developed by Merck and Moderna, designed to prevent melanoma recurrence. In a recent phase 2 study, patients receiving the mRNA-4157 vaccine alongside pembrolizumab had nearly half the risk for melanoma recurrence or death at 3 years compared with those receiving pembrolizumab alone. Investigators are now evaluating the vaccine in a global phase 3 study in patients with high-risk, stage IIB to IV melanoma following surgery.

Another one to watch is the BNT116 NSCLC vaccine from BioNTech. This vaccine presents the immune system with NSCLC tumor markers to encourage the body to fight cancer cells expressing those markers while ignoring healthy cells. BioNTech also launched a global clinical trial for its vaccine this year.

Other notables include a pancreatic cancer mRNA vaccine, which has shown promising early results in a small trial of 16 patients. Of 16 patients who received the vaccine alongside chemotherapy and after surgery and immunotherapy, 8 responded. Of these eight, six remained recurrence free at 3 years. Investigators noted that the vaccine appeared to stimulate a durable T-cell response in patients who responded.

Kwak has also continued his work on lymphoma vaccines. In August, his team published promising first-in-human data on the use of personalized neoantigen vaccines as an early intervention in untreated patients with lymphoplasmacytic lymphoma. Among nine asymptomatic patients who received the vaccine, all achieved stable disease or better, with no dose-limiting toxicities. One patient had a minor response, and the median time to progression was greater than 72 months.

“The current setting is more for advanced disease,” Kwak explained. “It’s a tougher task, but combined with checkpoint blockade, it may be potent enough to work.” 

Still, caution is important. Despite early promise, it’s too soon to tell which, if any, of these investigational vaccines will pan out in the long run. Like investigational drugs, cancer vaccines may show big promising initially but then fail in larger trials.

One key to success, according to Kwak, is to design trials so that even negative results will inform next steps.

But, he noted, failures in large clinical trials will “put a chilling effect on cancer vaccine research again.”

“That’s what keeps me up at night,” he said. “We know the science is fundamentally sound and we have seen glimpses over decades of research that cancer vaccines can work, so it’s really just a matter of tweaking things to optimize trial design.”

Companies tend to design trials to test if a vaccine works or not, without trying to understand why, he said.

“What we need to do is design those so that we can learn from negative results,” he said. That’s what he and his colleagues attempted to do in their recent trial. “We didn’t just look at clinical results; we’re interrogating the actual tumor environment to understand what worked and didn’t and how to tweak that for the next trial.”

Kwak and his colleagues found, for instance, that the vaccine had a greater effect on B cell–derived tumor cells than on cells of plasma origin, so “the most rational design for the next iteration is to combine the vaccine with agents that work directly against plasma cells,” he explained.

As for what’s next, Kwak said: “We’re just focused on trying to do good science and understand. We’ve seen glimpses of success. That’s where we are.”

A version of this article first appeared on Medscape.com.

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Vaccines for treating and preventing cancer have long been considered a holy grail in oncology.

But aside from a few notable exceptions — including the human papillomavirus (HPV) vaccine, which has dramatically reduced the incidence of HPV-related cancers, and a Bacillus Calmette-Guerin vaccine, which helps prevent early-stage bladder cancer recurrence — most have failed to deliver.

Following a string of disappointments over the past decade, recent advances in the immunotherapy space are bringing renewed hope for progress.

In an American Association for Cancer Research (AACR) series earlier in 2024, Catherine J. Wu, MD, predicted big strides for cancer vaccines, especially for personalized vaccines that target patient-specific neoantigens — the proteins that form on cancer cells — as well as vaccines that can treat diverse tumor types.

“A focus on neoantigens that arise from driver mutations in different tumor types could allow us to make progress in creating off-the-shelf vaccines,” said Wu, the Lavine Family Chair of Preventative Cancer Therapies at Dana-Farber Cancer Institute and a professor of medicine at Harvard Medical School, both in Boston, Massachusetts.

A prime example is a personalized, messenger RNA (mRNA)–based vaccine designed to prevent melanoma recurrence. The mRNA-4157 vaccine encodes up to 34 different patient-specific neoantigens.

“This is one of the most exciting developments in modern cancer therapy,” said Lawrence Young, a virologist and professor of molecular oncology at the University of Warwick, Coventry, England, who commented on the investigational vaccine via the UK-based Science Media Centre.

Other promising options are on the horizon as well. In August, BioNTech announced a phase 1 global trial to study BNT116 — a vaccine to treat non–small cell lung cancer (NSCLC). BNT116, like mRNA-4157, targets specific antigens in the lung cancer cells.

“This technology is the next big phase of cancer treatment,” Siow Ming Lee, MD, a consultant medical oncologist at University College London Hospitals in England, which is leading the UK trial for the lung cancer and melanoma vaccines, told The Guardian. “We are now entering this very exciting new era of mRNA-based immunotherapy clinical trials to investigate the treatment of lung cancer.”

Still, these predictions have a familiar ring. While the prospects are exciting, delivering on them is another story. There are simply no guarantees these strategies will work as hoped.

 

Then: Where We Were

Cancer vaccine research began to ramp up in the 2000s, and in 2006, the first-generation HPV vaccine, Gardasil, was approved. Gardasil prevents infection from four strains of HPV that cause about 80% of cervical cancer cases.

In 2010, the Food and Drug Administration approved sipuleucel-T, the first therapeutic cancer vaccine, which improved overall survival in patients with hormone-refractory prostate cancer.

Researchers predicted this approval would “pave the way for developing innovative, next generation of vaccines with enhanced antitumor potency.”

In a 2015 AACR research forecast report, Drew Pardoll, MD, PhD, co-director of the Cancer Immunology and Hematopoiesis Program at Johns Hopkins University, Baltimore, Maryland, said that “we can expect to see encouraging results from studies using cancer vaccines.”

Despite the excitement surrounding cancer vaccines alongside a few successes, the next decade brought a longer string of late-phase disappointments.

In 2016, the phase 3 ACT IV trial of a therapeutic vaccine to treat glioblastoma multiforme (CDX-110) was terminated after it failed to demonstrate improved survival.

In 2017, a phase 3 trial of the therapeutic pancreatic cancer vaccine, GVAX, was stopped early for lack of efficacy.

That year, an attenuated Listeria monocytogenes vaccine to treat pancreatic cancer and mesothelioma also failed to come to fruition. In late 2017, concerns over listeria infections prompted Aduro Biotech to cancel its listeria-based cancer treatment program.

In 2018, a phase 3 trial of belagenpumatucel-L, a therapeutic NSCLC vaccine, failed to demonstrate a significant improvement in survival and further study was discontinued.

And in 2019, a vaccine targeting MAGE-A3, a cancer-testis antigen present in multiple tumor types, failed to meet endpoints for improved survival in a phase 3 trial, leading to discontinuation of the vaccine program.

But these disappointments and failures are normal parts of medical research and drug development and have allowed for incremental advances that helped fuel renewed interest and hope for cancer vaccines, when the timing was right, explained vaccine pioneer Larry W. Kwak, MD, PhD, deputy director of the Comprehensive Cancer Center at City of Hope, Duarte, California.

When it comes to vaccine progress, timing makes a difference. In 2011, Kwak and colleagues published promising phase 3 trial results on a personalized vaccine. The vaccine was a patient-specific tumor-derived antigen for patients with follicular lymphoma in their first remission following chemotherapy. Patients who received the vaccine demonstrated significantly longer disease-free survival.

But, at the time, personalized vaccines faced strong headwinds due, largely, to high costs, and commercial interest failed to materialize. “That’s been the major hurdle for a long time,” said Kwak.

Now, however, interest has returned alongside advances in technology and research. The big shift has been the emergence of lower-cost rapid-production mRNA and DNA platforms and a better understanding of how vaccines and potent immune stimulants, like checkpoint inhibitors, can work together to improve outcomes, he explained.

“The timing wasn’t right” back then, Kwak noted. “Now, it’s a different environment and a different time.”

 

A Turning Point?

Indeed, a decade later, cancer vaccine development appears to be headed in a more promising direction.

Among key cancer vaccines to watch is the mRNA-4157 vaccine, developed by Merck and Moderna, designed to prevent melanoma recurrence. In a recent phase 2 study, patients receiving the mRNA-4157 vaccine alongside pembrolizumab had nearly half the risk for melanoma recurrence or death at 3 years compared with those receiving pembrolizumab alone. Investigators are now evaluating the vaccine in a global phase 3 study in patients with high-risk, stage IIB to IV melanoma following surgery.

Another one to watch is the BNT116 NSCLC vaccine from BioNTech. This vaccine presents the immune system with NSCLC tumor markers to encourage the body to fight cancer cells expressing those markers while ignoring healthy cells. BioNTech also launched a global clinical trial for its vaccine this year.

Other notables include a pancreatic cancer mRNA vaccine, which has shown promising early results in a small trial of 16 patients. Of 16 patients who received the vaccine alongside chemotherapy and after surgery and immunotherapy, 8 responded. Of these eight, six remained recurrence free at 3 years. Investigators noted that the vaccine appeared to stimulate a durable T-cell response in patients who responded.

Kwak has also continued his work on lymphoma vaccines. In August, his team published promising first-in-human data on the use of personalized neoantigen vaccines as an early intervention in untreated patients with lymphoplasmacytic lymphoma. Among nine asymptomatic patients who received the vaccine, all achieved stable disease or better, with no dose-limiting toxicities. One patient had a minor response, and the median time to progression was greater than 72 months.

“The current setting is more for advanced disease,” Kwak explained. “It’s a tougher task, but combined with checkpoint blockade, it may be potent enough to work.” 

Still, caution is important. Despite early promise, it’s too soon to tell which, if any, of these investigational vaccines will pan out in the long run. Like investigational drugs, cancer vaccines may show big promising initially but then fail in larger trials.

One key to success, according to Kwak, is to design trials so that even negative results will inform next steps.

But, he noted, failures in large clinical trials will “put a chilling effect on cancer vaccine research again.”

“That’s what keeps me up at night,” he said. “We know the science is fundamentally sound and we have seen glimpses over decades of research that cancer vaccines can work, so it’s really just a matter of tweaking things to optimize trial design.”

Companies tend to design trials to test if a vaccine works or not, without trying to understand why, he said.

“What we need to do is design those so that we can learn from negative results,” he said. That’s what he and his colleagues attempted to do in their recent trial. “We didn’t just look at clinical results; we’re interrogating the actual tumor environment to understand what worked and didn’t and how to tweak that for the next trial.”

Kwak and his colleagues found, for instance, that the vaccine had a greater effect on B cell–derived tumor cells than on cells of plasma origin, so “the most rational design for the next iteration is to combine the vaccine with agents that work directly against plasma cells,” he explained.

As for what’s next, Kwak said: “We’re just focused on trying to do good science and understand. We’ve seen glimpses of success. That’s where we are.”

A version of this article first appeared on Medscape.com.

Vaccines for treating and preventing cancer have long been considered a holy grail in oncology.

But aside from a few notable exceptions — including the human papillomavirus (HPV) vaccine, which has dramatically reduced the incidence of HPV-related cancers, and a Bacillus Calmette-Guerin vaccine, which helps prevent early-stage bladder cancer recurrence — most have failed to deliver.

Following a string of disappointments over the past decade, recent advances in the immunotherapy space are bringing renewed hope for progress.

In an American Association for Cancer Research (AACR) series earlier in 2024, Catherine J. Wu, MD, predicted big strides for cancer vaccines, especially for personalized vaccines that target patient-specific neoantigens — the proteins that form on cancer cells — as well as vaccines that can treat diverse tumor types.

“A focus on neoantigens that arise from driver mutations in different tumor types could allow us to make progress in creating off-the-shelf vaccines,” said Wu, the Lavine Family Chair of Preventative Cancer Therapies at Dana-Farber Cancer Institute and a professor of medicine at Harvard Medical School, both in Boston, Massachusetts.

A prime example is a personalized, messenger RNA (mRNA)–based vaccine designed to prevent melanoma recurrence. The mRNA-4157 vaccine encodes up to 34 different patient-specific neoantigens.

“This is one of the most exciting developments in modern cancer therapy,” said Lawrence Young, a virologist and professor of molecular oncology at the University of Warwick, Coventry, England, who commented on the investigational vaccine via the UK-based Science Media Centre.

Other promising options are on the horizon as well. In August, BioNTech announced a phase 1 global trial to study BNT116 — a vaccine to treat non–small cell lung cancer (NSCLC). BNT116, like mRNA-4157, targets specific antigens in the lung cancer cells.

“This technology is the next big phase of cancer treatment,” Siow Ming Lee, MD, a consultant medical oncologist at University College London Hospitals in England, which is leading the UK trial for the lung cancer and melanoma vaccines, told The Guardian. “We are now entering this very exciting new era of mRNA-based immunotherapy clinical trials to investigate the treatment of lung cancer.”

Still, these predictions have a familiar ring. While the prospects are exciting, delivering on them is another story. There are simply no guarantees these strategies will work as hoped.

 

Then: Where We Were

Cancer vaccine research began to ramp up in the 2000s, and in 2006, the first-generation HPV vaccine, Gardasil, was approved. Gardasil prevents infection from four strains of HPV that cause about 80% of cervical cancer cases.

In 2010, the Food and Drug Administration approved sipuleucel-T, the first therapeutic cancer vaccine, which improved overall survival in patients with hormone-refractory prostate cancer.

Researchers predicted this approval would “pave the way for developing innovative, next generation of vaccines with enhanced antitumor potency.”

In a 2015 AACR research forecast report, Drew Pardoll, MD, PhD, co-director of the Cancer Immunology and Hematopoiesis Program at Johns Hopkins University, Baltimore, Maryland, said that “we can expect to see encouraging results from studies using cancer vaccines.”

Despite the excitement surrounding cancer vaccines alongside a few successes, the next decade brought a longer string of late-phase disappointments.

In 2016, the phase 3 ACT IV trial of a therapeutic vaccine to treat glioblastoma multiforme (CDX-110) was terminated after it failed to demonstrate improved survival.

In 2017, a phase 3 trial of the therapeutic pancreatic cancer vaccine, GVAX, was stopped early for lack of efficacy.

That year, an attenuated Listeria monocytogenes vaccine to treat pancreatic cancer and mesothelioma also failed to come to fruition. In late 2017, concerns over listeria infections prompted Aduro Biotech to cancel its listeria-based cancer treatment program.

In 2018, a phase 3 trial of belagenpumatucel-L, a therapeutic NSCLC vaccine, failed to demonstrate a significant improvement in survival and further study was discontinued.

And in 2019, a vaccine targeting MAGE-A3, a cancer-testis antigen present in multiple tumor types, failed to meet endpoints for improved survival in a phase 3 trial, leading to discontinuation of the vaccine program.

But these disappointments and failures are normal parts of medical research and drug development and have allowed for incremental advances that helped fuel renewed interest and hope for cancer vaccines, when the timing was right, explained vaccine pioneer Larry W. Kwak, MD, PhD, deputy director of the Comprehensive Cancer Center at City of Hope, Duarte, California.

When it comes to vaccine progress, timing makes a difference. In 2011, Kwak and colleagues published promising phase 3 trial results on a personalized vaccine. The vaccine was a patient-specific tumor-derived antigen for patients with follicular lymphoma in their first remission following chemotherapy. Patients who received the vaccine demonstrated significantly longer disease-free survival.

But, at the time, personalized vaccines faced strong headwinds due, largely, to high costs, and commercial interest failed to materialize. “That’s been the major hurdle for a long time,” said Kwak.

Now, however, interest has returned alongside advances in technology and research. The big shift has been the emergence of lower-cost rapid-production mRNA and DNA platforms and a better understanding of how vaccines and potent immune stimulants, like checkpoint inhibitors, can work together to improve outcomes, he explained.

“The timing wasn’t right” back then, Kwak noted. “Now, it’s a different environment and a different time.”

 

A Turning Point?

Indeed, a decade later, cancer vaccine development appears to be headed in a more promising direction.

Among key cancer vaccines to watch is the mRNA-4157 vaccine, developed by Merck and Moderna, designed to prevent melanoma recurrence. In a recent phase 2 study, patients receiving the mRNA-4157 vaccine alongside pembrolizumab had nearly half the risk for melanoma recurrence or death at 3 years compared with those receiving pembrolizumab alone. Investigators are now evaluating the vaccine in a global phase 3 study in patients with high-risk, stage IIB to IV melanoma following surgery.

Another one to watch is the BNT116 NSCLC vaccine from BioNTech. This vaccine presents the immune system with NSCLC tumor markers to encourage the body to fight cancer cells expressing those markers while ignoring healthy cells. BioNTech also launched a global clinical trial for its vaccine this year.

Other notables include a pancreatic cancer mRNA vaccine, which has shown promising early results in a small trial of 16 patients. Of 16 patients who received the vaccine alongside chemotherapy and after surgery and immunotherapy, 8 responded. Of these eight, six remained recurrence free at 3 years. Investigators noted that the vaccine appeared to stimulate a durable T-cell response in patients who responded.

Kwak has also continued his work on lymphoma vaccines. In August, his team published promising first-in-human data on the use of personalized neoantigen vaccines as an early intervention in untreated patients with lymphoplasmacytic lymphoma. Among nine asymptomatic patients who received the vaccine, all achieved stable disease or better, with no dose-limiting toxicities. One patient had a minor response, and the median time to progression was greater than 72 months.

“The current setting is more for advanced disease,” Kwak explained. “It’s a tougher task, but combined with checkpoint blockade, it may be potent enough to work.” 

Still, caution is important. Despite early promise, it’s too soon to tell which, if any, of these investigational vaccines will pan out in the long run. Like investigational drugs, cancer vaccines may show big promising initially but then fail in larger trials.

One key to success, according to Kwak, is to design trials so that even negative results will inform next steps.

But, he noted, failures in large clinical trials will “put a chilling effect on cancer vaccine research again.”

“That’s what keeps me up at night,” he said. “We know the science is fundamentally sound and we have seen glimpses over decades of research that cancer vaccines can work, so it’s really just a matter of tweaking things to optimize trial design.”

Companies tend to design trials to test if a vaccine works or not, without trying to understand why, he said.

“What we need to do is design those so that we can learn from negative results,” he said. That’s what he and his colleagues attempted to do in their recent trial. “We didn’t just look at clinical results; we’re interrogating the actual tumor environment to understand what worked and didn’t and how to tweak that for the next trial.”

Kwak and his colleagues found, for instance, that the vaccine had a greater effect on B cell–derived tumor cells than on cells of plasma origin, so “the most rational design for the next iteration is to combine the vaccine with agents that work directly against plasma cells,” he explained.

As for what’s next, Kwak said: “We’re just focused on trying to do good science and understand. We’ve seen glimpses of success. That’s where we are.”

A version of this article first appeared on Medscape.com.

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Dark Chocolate: A Bittersweet Remedy for Diabetes Risk

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TOPLINE:

Consuming five or more servings per week of dark chocolate is associated with a lower risk for type 2 diabetes (T2D), compared with infrequent or no consumption. Conversely, a higher consumption of milk chocolate does not significantly affect the risk for diabetes and may contribute to greater weight gain.

METHODOLOGY:

  • Chocolate is rich in flavanols, natural compounds known to support heart health and lower the risk for T2D. However, the link between chocolate consumption and the risk for T2D is uncertain, with inconsistent research findings that don’t distinguish between dark or milk chocolate.
  • Researchers conducted a prospective cohort study to investigate the associations between dark, milk, and total chocolate consumption and the risk for T2D in three long-term US studies of female nurses and male healthcare professionals with no history of diabetes, cardiovascular disease, or cancer at baseline.
  • The relationship between total chocolate consumption and the risk for diabetes was investigated in 192,208 individuals who reported their chocolate consumption using validated food frequency questionnaires every 4 years from 1986 onward.
  • Information on chocolate subtypes was assessed from 2006/2007 onward in 111,654 participants.
  • Participants self-reported T2D through biennial questionnaires, which was confirmed via supplementary questionnaires collecting data on glucose levels, hemoglobin A1c concentration, symptoms, and treatments; they also self-reported their body weight at baseline and during follow-ups.

TAKEAWAY:

  • During 4,829,175 person-years of follow-up, researchers identified 18,862 individuals with incident T2D in the total chocolate analysis cohort.
  • In the chocolate subtype cohort, 4771 incident T2D cases were identified during 1,270,348 person-years of follow-up. Having at least five servings per week of dark chocolate was associated with a 21% lower risk for T2D (adjusted hazard ratio, 0.79; P for trend = .006), while milk chocolate consumption showed no significant link (P for trend = .75).
  • The risk for T2D decreased by 3% for each additional serving of dark chocolate consumed weekly, indicating a dose-response effect.
  • Compared with individuals who did not change their chocolate intake, those who had an increased milk chocolate intake had greater weight gain over 4-year periods (mean difference, 0.35 kg; 95% CI, 0.27-0.43); dark chocolate showed no significant association with weight change.

IN PRACTICE:

“Even though dark and milk chocolate have similar levels of calories and saturated fat, it appears that the rich polyphenols in dark chocolate might offset the effects of saturated fat and sugar on weight gain and diabetes. It’s an intriguing difference that’s worth exploring more,” corresponding author Qi Sun from the Departments of Nutrition and Epidemiology, Harvard TH Chan School of Public Health, Boston, Massachusetts, said in a press release.

SOURCE:

This study was led by Binkai Liu, Harvard TH Chan School of Public Health. It was published online in The BMJ.

LIMITATIONS:

The relatively limited number of participants in the higher chocolate consumption groups may have reduced the statistical power for detecting modest associations between dark chocolate consumption and the risk for T2D. Additionally, the study population primarily consisted of non-Hispanic White adults older than 50 years at baseline, which, along with their professional backgrounds, may have limited the generalizability of the study findings to other populations with different socioeconomic or personal characteristics. Chocolate consumption in this study was lower than the national average of three servings per week, which may have limited the ability to assess the dose-response relationship at higher intake levels.

DISCLOSURES:

This study was supported by grants from the National Institutes of Health. Some authors reported receiving investigator-initiated grants, being on scientific advisory boards, and receiving research funding from certain institutions.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

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TOPLINE:

Consuming five or more servings per week of dark chocolate is associated with a lower risk for type 2 diabetes (T2D), compared with infrequent or no consumption. Conversely, a higher consumption of milk chocolate does not significantly affect the risk for diabetes and may contribute to greater weight gain.

METHODOLOGY:

  • Chocolate is rich in flavanols, natural compounds known to support heart health and lower the risk for T2D. However, the link between chocolate consumption and the risk for T2D is uncertain, with inconsistent research findings that don’t distinguish between dark or milk chocolate.
  • Researchers conducted a prospective cohort study to investigate the associations between dark, milk, and total chocolate consumption and the risk for T2D in three long-term US studies of female nurses and male healthcare professionals with no history of diabetes, cardiovascular disease, or cancer at baseline.
  • The relationship between total chocolate consumption and the risk for diabetes was investigated in 192,208 individuals who reported their chocolate consumption using validated food frequency questionnaires every 4 years from 1986 onward.
  • Information on chocolate subtypes was assessed from 2006/2007 onward in 111,654 participants.
  • Participants self-reported T2D through biennial questionnaires, which was confirmed via supplementary questionnaires collecting data on glucose levels, hemoglobin A1c concentration, symptoms, and treatments; they also self-reported their body weight at baseline and during follow-ups.

TAKEAWAY:

  • During 4,829,175 person-years of follow-up, researchers identified 18,862 individuals with incident T2D in the total chocolate analysis cohort.
  • In the chocolate subtype cohort, 4771 incident T2D cases were identified during 1,270,348 person-years of follow-up. Having at least five servings per week of dark chocolate was associated with a 21% lower risk for T2D (adjusted hazard ratio, 0.79; P for trend = .006), while milk chocolate consumption showed no significant link (P for trend = .75).
  • The risk for T2D decreased by 3% for each additional serving of dark chocolate consumed weekly, indicating a dose-response effect.
  • Compared with individuals who did not change their chocolate intake, those who had an increased milk chocolate intake had greater weight gain over 4-year periods (mean difference, 0.35 kg; 95% CI, 0.27-0.43); dark chocolate showed no significant association with weight change.

IN PRACTICE:

“Even though dark and milk chocolate have similar levels of calories and saturated fat, it appears that the rich polyphenols in dark chocolate might offset the effects of saturated fat and sugar on weight gain and diabetes. It’s an intriguing difference that’s worth exploring more,” corresponding author Qi Sun from the Departments of Nutrition and Epidemiology, Harvard TH Chan School of Public Health, Boston, Massachusetts, said in a press release.

SOURCE:

This study was led by Binkai Liu, Harvard TH Chan School of Public Health. It was published online in The BMJ.

LIMITATIONS:

The relatively limited number of participants in the higher chocolate consumption groups may have reduced the statistical power for detecting modest associations between dark chocolate consumption and the risk for T2D. Additionally, the study population primarily consisted of non-Hispanic White adults older than 50 years at baseline, which, along with their professional backgrounds, may have limited the generalizability of the study findings to other populations with different socioeconomic or personal characteristics. Chocolate consumption in this study was lower than the national average of three servings per week, which may have limited the ability to assess the dose-response relationship at higher intake levels.

DISCLOSURES:

This study was supported by grants from the National Institutes of Health. Some authors reported receiving investigator-initiated grants, being on scientific advisory boards, and receiving research funding from certain institutions.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

TOPLINE:

Consuming five or more servings per week of dark chocolate is associated with a lower risk for type 2 diabetes (T2D), compared with infrequent or no consumption. Conversely, a higher consumption of milk chocolate does not significantly affect the risk for diabetes and may contribute to greater weight gain.

METHODOLOGY:

  • Chocolate is rich in flavanols, natural compounds known to support heart health and lower the risk for T2D. However, the link between chocolate consumption and the risk for T2D is uncertain, with inconsistent research findings that don’t distinguish between dark or milk chocolate.
  • Researchers conducted a prospective cohort study to investigate the associations between dark, milk, and total chocolate consumption and the risk for T2D in three long-term US studies of female nurses and male healthcare professionals with no history of diabetes, cardiovascular disease, or cancer at baseline.
  • The relationship between total chocolate consumption and the risk for diabetes was investigated in 192,208 individuals who reported their chocolate consumption using validated food frequency questionnaires every 4 years from 1986 onward.
  • Information on chocolate subtypes was assessed from 2006/2007 onward in 111,654 participants.
  • Participants self-reported T2D through biennial questionnaires, which was confirmed via supplementary questionnaires collecting data on glucose levels, hemoglobin A1c concentration, symptoms, and treatments; they also self-reported their body weight at baseline and during follow-ups.

TAKEAWAY:

  • During 4,829,175 person-years of follow-up, researchers identified 18,862 individuals with incident T2D in the total chocolate analysis cohort.
  • In the chocolate subtype cohort, 4771 incident T2D cases were identified during 1,270,348 person-years of follow-up. Having at least five servings per week of dark chocolate was associated with a 21% lower risk for T2D (adjusted hazard ratio, 0.79; P for trend = .006), while milk chocolate consumption showed no significant link (P for trend = .75).
  • The risk for T2D decreased by 3% for each additional serving of dark chocolate consumed weekly, indicating a dose-response effect.
  • Compared with individuals who did not change their chocolate intake, those who had an increased milk chocolate intake had greater weight gain over 4-year periods (mean difference, 0.35 kg; 95% CI, 0.27-0.43); dark chocolate showed no significant association with weight change.

IN PRACTICE:

“Even though dark and milk chocolate have similar levels of calories and saturated fat, it appears that the rich polyphenols in dark chocolate might offset the effects of saturated fat and sugar on weight gain and diabetes. It’s an intriguing difference that’s worth exploring more,” corresponding author Qi Sun from the Departments of Nutrition and Epidemiology, Harvard TH Chan School of Public Health, Boston, Massachusetts, said in a press release.

SOURCE:

This study was led by Binkai Liu, Harvard TH Chan School of Public Health. It was published online in The BMJ.

LIMITATIONS:

The relatively limited number of participants in the higher chocolate consumption groups may have reduced the statistical power for detecting modest associations between dark chocolate consumption and the risk for T2D. Additionally, the study population primarily consisted of non-Hispanic White adults older than 50 years at baseline, which, along with their professional backgrounds, may have limited the generalizability of the study findings to other populations with different socioeconomic or personal characteristics. Chocolate consumption in this study was lower than the national average of three servings per week, which may have limited the ability to assess the dose-response relationship at higher intake levels.

DISCLOSURES:

This study was supported by grants from the National Institutes of Health. Some authors reported receiving investigator-initiated grants, being on scientific advisory boards, and receiving research funding from certain institutions.

This article was created using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.

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FDA Approves Bizengri for NSCLC and Pancreatic Cancers Harboring NRG1 Gene Fusion

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Thu, 12/05/2024 - 14:55

The Food and Drug Administration (FDA) has granted accelerated approval to zenocutuzumab-zbco (Bizengri, Merus) as an intravenous infusion for the treatment of certain adults with non–small cell lung cancer (NSCLC) or pancreatic adenocarcinoma.

Specifically, the systemic agent was approved for those with advanced, unresectable, or metastatic NSCLC or pancreatic adenocarcinoma harboring a neuregulin 1 (NRG1) gene fusion who progress on or after prior systemic therapy, according to the FDA.

The approval, based on findings from the multicenter, open-label eNRGy study, is the first from the FDA for a systemic therapy in this setting. In the multicohort study, treatment was associated with an overall response rate of 33% and 40% in 64 patients with NSCLC and 40 patients with pancreatic adenocarcinoma, respectively. Median duration of response was 7.4 months in the NSCLC patients and ranged from 3.7 to 16.6 months in those with pancreatic adenocarcinoma.

Adverse reactions occurring in at least 10% of patients included diarrhea, musculoskeletal pain, fatigue, nausea, infusion-related reactions, dyspnea, rash, constipation, vomiting, abdominal pain, and edema. Grade 3 or 4 laboratory abnormalities occurring in at least 10% of patients included increased gamma-glutamyl transferase and decreased hemoglobin, sodium, and platelets.

“The Personalized Medicine Coalition applauds the approval of BIZENGRI®,” Edward Abrahams, president of the Personalized Medicine Coalition, a Washington-based education and advocacy organization, stated in a press release from Merus. “In keeping with the growing number of personalized medicines on the market today, BIZENGRI® offers the only approved NRG1+ therapy for patients with these difficult-to-treat cancers.”

The agent is expected to be available for use in the “coming weeks,” according to Merus.

“The FDA approval of BIZENGRI® marks an important milestone for patients with pancreatic adenocarcinoma or NSCLC that is advanced unresectable or metastatic and harbors the NRG1 gene fusion,” noted Alison Schram, MD, an attending medical oncologist in the Early Drug Development Service at Memorial Sloan Kettering Cancer Center, New York City, and a principal investigator for the ongoing eNRGy trial. “I have seen firsthand how treatment with BIZENGRI® can deliver clinically meaningful outcomes for patients.”

Prescribing information for zenocutuzumab-zbco includes a Boxed Warning for embryo-fetal toxicity. The recommended treatment dose is 750 mg every 2 weeks until disease progression or unacceptable toxicity.

A version of this article first appeared on Medscape.com.

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The Food and Drug Administration (FDA) has granted accelerated approval to zenocutuzumab-zbco (Bizengri, Merus) as an intravenous infusion for the treatment of certain adults with non–small cell lung cancer (NSCLC) or pancreatic adenocarcinoma.

Specifically, the systemic agent was approved for those with advanced, unresectable, or metastatic NSCLC or pancreatic adenocarcinoma harboring a neuregulin 1 (NRG1) gene fusion who progress on or after prior systemic therapy, according to the FDA.

The approval, based on findings from the multicenter, open-label eNRGy study, is the first from the FDA for a systemic therapy in this setting. In the multicohort study, treatment was associated with an overall response rate of 33% and 40% in 64 patients with NSCLC and 40 patients with pancreatic adenocarcinoma, respectively. Median duration of response was 7.4 months in the NSCLC patients and ranged from 3.7 to 16.6 months in those with pancreatic adenocarcinoma.

Adverse reactions occurring in at least 10% of patients included diarrhea, musculoskeletal pain, fatigue, nausea, infusion-related reactions, dyspnea, rash, constipation, vomiting, abdominal pain, and edema. Grade 3 or 4 laboratory abnormalities occurring in at least 10% of patients included increased gamma-glutamyl transferase and decreased hemoglobin, sodium, and platelets.

“The Personalized Medicine Coalition applauds the approval of BIZENGRI®,” Edward Abrahams, president of the Personalized Medicine Coalition, a Washington-based education and advocacy organization, stated in a press release from Merus. “In keeping with the growing number of personalized medicines on the market today, BIZENGRI® offers the only approved NRG1+ therapy for patients with these difficult-to-treat cancers.”

The agent is expected to be available for use in the “coming weeks,” according to Merus.

“The FDA approval of BIZENGRI® marks an important milestone for patients with pancreatic adenocarcinoma or NSCLC that is advanced unresectable or metastatic and harbors the NRG1 gene fusion,” noted Alison Schram, MD, an attending medical oncologist in the Early Drug Development Service at Memorial Sloan Kettering Cancer Center, New York City, and a principal investigator for the ongoing eNRGy trial. “I have seen firsthand how treatment with BIZENGRI® can deliver clinically meaningful outcomes for patients.”

Prescribing information for zenocutuzumab-zbco includes a Boxed Warning for embryo-fetal toxicity. The recommended treatment dose is 750 mg every 2 weeks until disease progression or unacceptable toxicity.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration (FDA) has granted accelerated approval to zenocutuzumab-zbco (Bizengri, Merus) as an intravenous infusion for the treatment of certain adults with non–small cell lung cancer (NSCLC) or pancreatic adenocarcinoma.

Specifically, the systemic agent was approved for those with advanced, unresectable, or metastatic NSCLC or pancreatic adenocarcinoma harboring a neuregulin 1 (NRG1) gene fusion who progress on or after prior systemic therapy, according to the FDA.

The approval, based on findings from the multicenter, open-label eNRGy study, is the first from the FDA for a systemic therapy in this setting. In the multicohort study, treatment was associated with an overall response rate of 33% and 40% in 64 patients with NSCLC and 40 patients with pancreatic adenocarcinoma, respectively. Median duration of response was 7.4 months in the NSCLC patients and ranged from 3.7 to 16.6 months in those with pancreatic adenocarcinoma.

Adverse reactions occurring in at least 10% of patients included diarrhea, musculoskeletal pain, fatigue, nausea, infusion-related reactions, dyspnea, rash, constipation, vomiting, abdominal pain, and edema. Grade 3 or 4 laboratory abnormalities occurring in at least 10% of patients included increased gamma-glutamyl transferase and decreased hemoglobin, sodium, and platelets.

“The Personalized Medicine Coalition applauds the approval of BIZENGRI®,” Edward Abrahams, president of the Personalized Medicine Coalition, a Washington-based education and advocacy organization, stated in a press release from Merus. “In keeping with the growing number of personalized medicines on the market today, BIZENGRI® offers the only approved NRG1+ therapy for patients with these difficult-to-treat cancers.”

The agent is expected to be available for use in the “coming weeks,” according to Merus.

“The FDA approval of BIZENGRI® marks an important milestone for patients with pancreatic adenocarcinoma or NSCLC that is advanced unresectable or metastatic and harbors the NRG1 gene fusion,” noted Alison Schram, MD, an attending medical oncologist in the Early Drug Development Service at Memorial Sloan Kettering Cancer Center, New York City, and a principal investigator for the ongoing eNRGy trial. “I have seen firsthand how treatment with BIZENGRI® can deliver clinically meaningful outcomes for patients.”

Prescribing information for zenocutuzumab-zbco includes a Boxed Warning for embryo-fetal toxicity. The recommended treatment dose is 750 mg every 2 weeks until disease progression or unacceptable toxicity.

A version of this article first appeared on Medscape.com.

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