Rheumatoid Arthritis

Key clinical point: In patients with rheumatoid arthritis (RA), treatment with targeted synthetic and biologic disease-modifying antirheumatic drugs (tsDMARDs/bDMARDs) vs conventional synthetic DMARDs (csDMARDs) was associated with a significantly higher risk for herpes zoster (HZ).

Major finding: Compared with csDMARDs, Janus kinase inhibitors (adjusted hazard ratio [aHR], 3.66; P less than .0001), monoclonal anti-tumor necrosis factor antibodies (aHR, 1.63; P = .0042), and B-cell targeted treatment (aHR, 1.57; P = .0355) were associated with a significantly higher risk for HZ.

Study details: The data come from an analysis of 13,991 patients with RA from the German RABBIT register, which included patients who initiated tsDMARD/bDMARD or csDMARD treatment after at least 1 prior DMARD.

Disclosures: RABBIT is supported by a joint, unconditional grant from AbbVie, Amgen, BMS, Celltrion, Fresenius Kabi, Hexal, Lilly, MSD, Viatris, Pfizer, Roche, Samsung Bioepis, Sanofi-Aventis, and UCB. A Strangfeld, A Zink, GR Burmester, and J Braun declared receiving speaker fees, honoraria, consulting, and/or grants from various sources.

Source: Redeker I et al. Ann Rheum Dis. 2021 Jul 28. doi: 10.1136/annrheumdis-2021-220651.

Key clinical point: In patients with rheumatoid arthritis (RA), treatment with targeted synthetic and biologic disease-modifying antirheumatic drugs (tsDMARDs/bDMARDs) vs conventional synthetic DMARDs (csDMARDs) was associated with a significantly higher risk for herpes zoster (HZ).

Major finding: Compared with csDMARDs, Janus kinase inhibitors (adjusted hazard ratio [aHR], 3.66; P less than .0001), monoclonal anti-tumor necrosis factor antibodies (aHR, 1.63; P = .0042), and B-cell targeted treatment (aHR, 1.57; P = .0355) were associated with a significantly higher risk for HZ.

Study details: The data come from an analysis of 13,991 patients with RA from the German RABBIT register, which included patients who initiated tsDMARD/bDMARD or csDMARD treatment after at least 1 prior DMARD.

Disclosures: RABBIT is supported by a joint, unconditional grant from AbbVie, Amgen, BMS, Celltrion, Fresenius Kabi, Hexal, Lilly, MSD, Viatris, Pfizer, Roche, Samsung Bioepis, Sanofi-Aventis, and UCB. A Strangfeld, A Zink, GR Burmester, and J Braun declared receiving speaker fees, honoraria, consulting, and/or grants from various sources.

Source: Redeker I et al. Ann Rheum Dis. 2021 Jul 28. doi: 10.1136/annrheumdis-2021-220651.

Key clinical point: In patients with rheumatoid arthritis (RA), treatment with targeted synthetic and biologic disease-modifying antirheumatic drugs (tsDMARDs/bDMARDs) vs conventional synthetic DMARDs (csDMARDs) was associated with a significantly higher risk for herpes zoster (HZ).

Major finding: Compared with csDMARDs, Janus kinase inhibitors (adjusted hazard ratio [aHR], 3.66; P less than .0001), monoclonal anti-tumor necrosis factor antibodies (aHR, 1.63; P = .0042), and B-cell targeted treatment (aHR, 1.57; P = .0355) were associated with a significantly higher risk for HZ.

Study details: The data come from an analysis of 13,991 patients with RA from the German RABBIT register, which included patients who initiated tsDMARD/bDMARD or csDMARD treatment after at least 1 prior DMARD.

Disclosures: RABBIT is supported by a joint, unconditional grant from AbbVie, Amgen, BMS, Celltrion, Fresenius Kabi, Hexal, Lilly, MSD, Viatris, Pfizer, Roche, Samsung Bioepis, Sanofi-Aventis, and UCB. A Strangfeld, A Zink, GR Burmester, and J Braun declared receiving speaker fees, honoraria, consulting, and/or grants from various sources.

Source: Redeker I et al. Ann Rheum Dis. 2021 Jul 28. doi: 10.1136/annrheumdis-2021-220651.

Key clinical point: Higher baseline levels of immunoglobulin M (IgM) anti-phosphorylcholine (anti-PC) autoantibodies in early rheumatoid arthritis (RA) showed benefits in the reduction of cardiovascular risk in younger patients, men, and those at risk for cardiovascular event.

Major finding: Baseline IgM anti-PC autoantibody level above vs below median was associated with lower risk of cardiovascular outcome in patients below 55 years of age at inclusion (adjusted hazard ratio [aHR], 0.360; P = .032), male patients (aHR, 0.558; P = .034), those with a body mass index greater than 30 kg/m² (aHR, 0.235; P = .026), and those who did not achieve Disease Activity Score for 28 joints remission at 1 year (aHR, 0.592; P = .021).

Study details: Findings are from an analysis of 653 patients with early RA without prevalent cardiovascular disease from the prospective, observational BARFOT cohort.

Disclosures: The Swedish Rheumatism Association, the King Gustav V 80 year’s Foundation, and the Swedish Heart-Lung Foundation funded this research. J Frostegård declared being a registered patent holder for anti-PC.

Source: Ajeganova S et al. Arthritis Res Ther. 2021 Jul 27. doi: 10.1186/s13075-021-02581-0.

Key clinical point: Higher baseline levels of immunoglobulin M (IgM) anti-phosphorylcholine (anti-PC) autoantibodies in early rheumatoid arthritis (RA) showed benefits in the reduction of cardiovascular risk in younger patients, men, and those at risk for cardiovascular event.

Major finding: Baseline IgM anti-PC autoantibody level above vs below median was associated with lower risk of cardiovascular outcome in patients below 55 years of age at inclusion (adjusted hazard ratio [aHR], 0.360; P = .032), male patients (aHR, 0.558; P = .034), those with a body mass index greater than 30 kg/m² (aHR, 0.235; P = .026), and those who did not achieve Disease Activity Score for 28 joints remission at 1 year (aHR, 0.592; P = .021).

Study details: Findings are from an analysis of 653 patients with early RA without prevalent cardiovascular disease from the prospective, observational BARFOT cohort.

Disclosures: The Swedish Rheumatism Association, the King Gustav V 80 year’s Foundation, and the Swedish Heart-Lung Foundation funded this research. J Frostegård declared being a registered patent holder for anti-PC.

Source: Ajeganova S et al. Arthritis Res Ther. 2021 Jul 27. doi: 10.1186/s13075-021-02581-0.

Key clinical point: Higher baseline levels of immunoglobulin M (IgM) anti-phosphorylcholine (anti-PC) autoantibodies in early rheumatoid arthritis (RA) showed benefits in the reduction of cardiovascular risk in younger patients, men, and those at risk for cardiovascular event.

Major finding: Baseline IgM anti-PC autoantibody level above vs below median was associated with lower risk of cardiovascular outcome in patients below 55 years of age at inclusion (adjusted hazard ratio [aHR], 0.360; P = .032), male patients (aHR, 0.558; P = .034), those with a body mass index greater than 30 kg/m² (aHR, 0.235; P = .026), and those who did not achieve Disease Activity Score for 28 joints remission at 1 year (aHR, 0.592; P = .021).

Study details: Findings are from an analysis of 653 patients with early RA without prevalent cardiovascular disease from the prospective, observational BARFOT cohort.

Disclosures: The Swedish Rheumatism Association, the King Gustav V 80 year’s Foundation, and the Swedish Heart-Lung Foundation funded this research. J Frostegård declared being a registered patent holder for anti-PC.

Source: Ajeganova S et al. Arthritis Res Ther. 2021 Jul 27. doi: 10.1186/s13075-021-02581-0.

Key clinical point: In real medical practice, tofacitinib and baricitinib demonstrated comparable efficacies and similar safety profiles in patients with rheumatoid arthritis (RA); however, predictive factors contributing to their treatment responses were different.

Major finding: At 24 weeks, clinical response (adjusted mean difference, −0.04; 95% confidence interval, −0.35 to 0.28) and adverse events (P = .866) were not significantly different between the 2 groups. Factors independently associated with the achievement of disease activity score-low disease activity were concomitant oral steroid use (odds ratio [OR], 0.470) in the tofacitinib group and the number of previous use of biological and/or targeted synthetic disease-modifying antirheumatic drugs (OR, 0.700) in the baricitinib group (both P < .05).

Study details: Findings are from the analysis of a real-world cohort of 242 patients with RA who were treated with tofacitinib (n=161) between August 2013 and October 2019 or baricitinib (n=81) between January 2018 and February 2020.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Iwamoto N et al. Arthritis Res Ther. 2021 Jul 23. doi: 10.1186/s13075-021-02582-z.

Key clinical point: In real medical practice, tofacitinib and baricitinib demonstrated comparable efficacies and similar safety profiles in patients with rheumatoid arthritis (RA); however, predictive factors contributing to their treatment responses were different.

Major finding: At 24 weeks, clinical response (adjusted mean difference, −0.04; 95% confidence interval, −0.35 to 0.28) and adverse events (P = .866) were not significantly different between the 2 groups. Factors independently associated with the achievement of disease activity score-low disease activity were concomitant oral steroid use (odds ratio [OR], 0.470) in the tofacitinib group and the number of previous use of biological and/or targeted synthetic disease-modifying antirheumatic drugs (OR, 0.700) in the baricitinib group (both P < .05).

Study details: Findings are from the analysis of a real-world cohort of 242 patients with RA who were treated with tofacitinib (n=161) between August 2013 and October 2019 or baricitinib (n=81) between January 2018 and February 2020.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Iwamoto N et al. Arthritis Res Ther. 2021 Jul 23. doi: 10.1186/s13075-021-02582-z.

Key clinical point: In real medical practice, tofacitinib and baricitinib demonstrated comparable efficacies and similar safety profiles in patients with rheumatoid arthritis (RA); however, predictive factors contributing to their treatment responses were different.

Major finding: At 24 weeks, clinical response (adjusted mean difference, −0.04; 95% confidence interval, −0.35 to 0.28) and adverse events (P = .866) were not significantly different between the 2 groups. Factors independently associated with the achievement of disease activity score-low disease activity were concomitant oral steroid use (odds ratio [OR], 0.470) in the tofacitinib group and the number of previous use of biological and/or targeted synthetic disease-modifying antirheumatic drugs (OR, 0.700) in the baricitinib group (both P < .05).

Study details: Findings are from the analysis of a real-world cohort of 242 patients with RA who were treated with tofacitinib (n=161) between August 2013 and October 2019 or baricitinib (n=81) between January 2018 and February 2020.

Disclosures: This study did not receive any funding. The authors declared no conflict of interests.

Source: Iwamoto N et al. Arthritis Res Ther. 2021 Jul 23. doi: 10.1186/s13075-021-02582-z.

Key clinical point: Patients with rheumatoid arthritis (RA) currently using low-dose oral glucocorticoid (7.5 mg or lower of prednisolone equivalent dose/day) were at a 59% increased risk of sustaining clinical vertebral fracture compared with past users.

Major finding: Although the overall risk for osteoporotic fractures was not different between past and current users of low-dose oral glucocorticoids (adjusted hazard ratio [aHR], 1.14; 95% confidence interval [CI], 0.98-1.33), the risk for clinical vertebral fracture was significantly higher with current use (aHR, 1.59; 95% CI, 1.11-2.29).

Study details: This was a retrospective cohort study of 15,123 adults aged 50 years or older from the Clinical Practice Research Datalink who were diagnosed with RA between 1997 and 2017.

Disclosures: No specific funding was received for this study. AM Burden and JP van den Bergh reported receiving grants and lectures/advisory board meetings fees from various sources. FD Vries supervised 3 PhD students who were employed with F. Hoffmann La Roche Ltd. All the other authors declared no conflict of interests.

Source: Abtahi S et al. Rheumatology (Oxford). 2021 Jul 13. doi: 10.1093/rheumatology/keab548.

Key clinical point: Patients with rheumatoid arthritis (RA) currently using low-dose oral glucocorticoid (7.5 mg or lower of prednisolone equivalent dose/day) were at a 59% increased risk of sustaining clinical vertebral fracture compared with past users.

Major finding: Although the overall risk for osteoporotic fractures was not different between past and current users of low-dose oral glucocorticoids (adjusted hazard ratio [aHR], 1.14; 95% confidence interval [CI], 0.98-1.33), the risk for clinical vertebral fracture was significantly higher with current use (aHR, 1.59; 95% CI, 1.11-2.29).

Study details: This was a retrospective cohort study of 15,123 adults aged 50 years or older from the Clinical Practice Research Datalink who were diagnosed with RA between 1997 and 2017.

Disclosures: No specific funding was received for this study. AM Burden and JP van den Bergh reported receiving grants and lectures/advisory board meetings fees from various sources. FD Vries supervised 3 PhD students who were employed with F. Hoffmann La Roche Ltd. All the other authors declared no conflict of interests.

Source: Abtahi S et al. Rheumatology (Oxford). 2021 Jul 13. doi: 10.1093/rheumatology/keab548.

Key clinical point: Patients with rheumatoid arthritis (RA) currently using low-dose oral glucocorticoid (7.5 mg or lower of prednisolone equivalent dose/day) were at a 59% increased risk of sustaining clinical vertebral fracture compared with past users.

Major finding: Although the overall risk for osteoporotic fractures was not different between past and current users of low-dose oral glucocorticoids (adjusted hazard ratio [aHR], 1.14; 95% confidence interval [CI], 0.98-1.33), the risk for clinical vertebral fracture was significantly higher with current use (aHR, 1.59; 95% CI, 1.11-2.29).

Study details: This was a retrospective cohort study of 15,123 adults aged 50 years or older from the Clinical Practice Research Datalink who were diagnosed with RA between 1997 and 2017.

Disclosures: No specific funding was received for this study. AM Burden and JP van den Bergh reported receiving grants and lectures/advisory board meetings fees from various sources. FD Vries supervised 3 PhD students who were employed with F. Hoffmann La Roche Ltd. All the other authors declared no conflict of interests.

Source: Abtahi S et al. Rheumatology (Oxford). 2021 Jul 13. doi: 10.1093/rheumatology/keab548.

Key clinical point: Olokizumab significantly improved signs and symptoms of rheumatoid arthritis (RA) in patients with inadequate response to methotrexate and was reasonably well tolerated over a period of 24 weeks.

Major finding: At 12 weeks, the proportion of patients who achieved American College of Rheumatology 20% response was significantly higher with olokizumab every 2 (63.6%) and 4 (70.4%) weeks vs placebo (25.9%; both P < .0001). Most treatment-emergent adverse events were mild to moderate.

Study details: Findings are from CREDO 1, a phase 3 trial of 428 patients with active RA despite treatment with methotrexate who were randomly assigned to receive subcutaneous olokizumab 64 mg once every 2 or 4 weeks or placebo with continuation of background methotrexate.

Disclosures: This study was funded by CJSC R-Pharm. E Korneva and M Samsonov reported being employees of R-Pharm. Some of the authors declared receiving consulting fees and/or research grants from, being on speakers’ bureau for, being consultant and/or employee of, and/or holding stocks for various sources.

Source: Nasonov E et al. Ann Rheum Dis. 2021 Aug 3. doi: 10.1136/annrheumdis-2021-219876.

Key clinical point: Olokizumab significantly improved signs and symptoms of rheumatoid arthritis (RA) in patients with inadequate response to methotrexate and was reasonably well tolerated over a period of 24 weeks.

Major finding: At 12 weeks, the proportion of patients who achieved American College of Rheumatology 20% response was significantly higher with olokizumab every 2 (63.6%) and 4 (70.4%) weeks vs placebo (25.9%; both P < .0001). Most treatment-emergent adverse events were mild to moderate.

Study details: Findings are from CREDO 1, a phase 3 trial of 428 patients with active RA despite treatment with methotrexate who were randomly assigned to receive subcutaneous olokizumab 64 mg once every 2 or 4 weeks or placebo with continuation of background methotrexate.

Disclosures: This study was funded by CJSC R-Pharm. E Korneva and M Samsonov reported being employees of R-Pharm. Some of the authors declared receiving consulting fees and/or research grants from, being on speakers’ bureau for, being consultant and/or employee of, and/or holding stocks for various sources.

Source: Nasonov E et al. Ann Rheum Dis. 2021 Aug 3. doi: 10.1136/annrheumdis-2021-219876.

Key clinical point: Olokizumab significantly improved signs and symptoms of rheumatoid arthritis (RA) in patients with inadequate response to methotrexate and was reasonably well tolerated over a period of 24 weeks.

Major finding: At 12 weeks, the proportion of patients who achieved American College of Rheumatology 20% response was significantly higher with olokizumab every 2 (63.6%) and 4 (70.4%) weeks vs placebo (25.9%; both P < .0001). Most treatment-emergent adverse events were mild to moderate.

Study details: Findings are from CREDO 1, a phase 3 trial of 428 patients with active RA despite treatment with methotrexate who were randomly assigned to receive subcutaneous olokizumab 64 mg once every 2 or 4 weeks or placebo with continuation of background methotrexate.

Disclosures: This study was funded by CJSC R-Pharm. E Korneva and M Samsonov reported being employees of R-Pharm. Some of the authors declared receiving consulting fees and/or research grants from, being on speakers’ bureau for, being consultant and/or employee of, and/or holding stocks for various sources.

Source: Nasonov E et al. Ann Rheum Dis. 2021 Aug 3. doi: 10.1136/annrheumdis-2021-219876.

In the wake of the Centers for Disease Control and Prevention’s recommendation for a third COVID-19 mRNA vaccine dose for immunocompromised people and the Food and Drug Administration’s authorization of the third dose, the National Institute of Allergy and Infectious Diseases has begun a phase 2 trial to assess the antibody response to a booster dose of the Pfizer-BioNTech, Moderna, or Janssen vaccine in people with autoimmune disease who did not respond to their original COVID-19 vaccine regimen, according to an announcement.

The investigators of the trial, called COVID‐19 Booster Vaccine in Autoimmune Disease Non‐Responders, also want to determine if pausing immunosuppressive therapy for autoimmune disease improves the antibody response to an extra dose of a COVID-19 vaccine.

The trial will specifically look at the effects of mycophenolate mofetil (MMF) or mycophenolic acid (MPA), and methotrexate (MTX), or receipt of B cell–depletion therapy such as rituximab within the past 12 months on immune response to a booster dose in people with systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, systemic sclerosis, or pemphigus. They have to have either no serologic response to their initial COVID-19 vaccine regimen or a suboptimal response, defined as a Roche Elecsys Anti-SARS-CoV-2 S (RBD) result greater than or equal to 50 U/mL.

The results of studies conducted in solid-organ transplant recipients who take immunosuppressants showed that an extra dose of vaccine could improve the immune response to the vaccine in many of the individuals, which suggests that the same approach might work in people with autoimmune disease who need treatment with immunosuppressive drugs. Improving the immune response of people with autoimmune disease to COVID-19 vaccines is important because higher rates of severe COVID-19 and death have been reported in this group of patients than in the general population, and it is unclear whether this is attributable to the autoimmune disease, the immunosuppressive medications taken to treat it, or both.

The open-label trial, conducted by the NIAID-funded Autoimmunity Centers of Excellence, aims to enroll 600 people aged 18 years and older with those conditions at 15-20 sites in the United States.

Because medications commonly taken by people with these conditions have been associated with poorer immune responses to vaccines, the trial will randomize the following two cohorts to stop or continue taking their immunosuppressive medication(s) or stop them before and after the booster according to protocol:

• Cohort 1 includes people who are taking MMF or MPA, without additional B cell–depleting medications or MTX.
• Cohort 2 includes people who are taking MTX without additional B cell–depleting medications or MMF/MPA.

A third, nonrandomized cohort consists of people who have received B cell–depletion therapy within the past 12 months regardless of whether they are also taking MMF/MPA or MTX.

Besides the cohort-specific exclusions, other rheumatic disease medications, including biologics, are allowed in the groups.

The primary outcome of the trial is the proportion of participants who have a protective antibody response at week 4. Secondary outcomes will examine various antibody responses at intervals, changes in disease activity across autoimmune diseases, adverse events, and SARS-CoV-2 infections out to 48 weeks.

Study participants will be followed for a total of 13 months. Preliminary results are expected in November 2021, according to the National Institutes of Health.

The trial is being led by Judith James, MD, PhD; Meggan Mackay, MD, MS; Dinesh Khanna, MBBS, MSc; and Amit Bar-Or, MD.

jevans@mdedge.com

In the wake of the Centers for Disease Control and Prevention’s recommendation for a third COVID-19 mRNA vaccine dose for immunocompromised people and the Food and Drug Administration’s authorization of the third dose, the National Institute of Allergy and Infectious Diseases has begun a phase 2 trial to assess the antibody response to a booster dose of the Pfizer-BioNTech, Moderna, or Janssen vaccine in people with autoimmune disease who did not respond to their original COVID-19 vaccine regimen, according to an announcement.

The investigators of the trial, called COVID‐19 Booster Vaccine in Autoimmune Disease Non‐Responders, also want to determine if pausing immunosuppressive therapy for autoimmune disease improves the antibody response to an extra dose of a COVID-19 vaccine.

The trial will specifically look at the effects of mycophenolate mofetil (MMF) or mycophenolic acid (MPA), and methotrexate (MTX), or receipt of B cell–depletion therapy such as rituximab within the past 12 months on immune response to a booster dose in people with systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, systemic sclerosis, or pemphigus. They have to have either no serologic response to their initial COVID-19 vaccine regimen or a suboptimal response, defined as a Roche Elecsys Anti-SARS-CoV-2 S (RBD) result greater than or equal to 50 U/mL.

The results of studies conducted in solid-organ transplant recipients who take immunosuppressants showed that an extra dose of vaccine could improve the immune response to the vaccine in many of the individuals, which suggests that the same approach might work in people with autoimmune disease who need treatment with immunosuppressive drugs. Improving the immune response of people with autoimmune disease to COVID-19 vaccines is important because higher rates of severe COVID-19 and death have been reported in this group of patients than in the general population, and it is unclear whether this is attributable to the autoimmune disease, the immunosuppressive medications taken to treat it, or both.

The open-label trial, conducted by the NIAID-funded Autoimmunity Centers of Excellence, aims to enroll 600 people aged 18 years and older with those conditions at 15-20 sites in the United States.

Because medications commonly taken by people with these conditions have been associated with poorer immune responses to vaccines, the trial will randomize the following two cohorts to stop or continue taking their immunosuppressive medication(s) or stop them before and after the booster according to protocol:

• Cohort 1 includes people who are taking MMF or MPA, without additional B cell–depleting medications or MTX.
• Cohort 2 includes people who are taking MTX without additional B cell–depleting medications or MMF/MPA.

A third, nonrandomized cohort consists of people who have received B cell–depletion therapy within the past 12 months regardless of whether they are also taking MMF/MPA or MTX.

Besides the cohort-specific exclusions, other rheumatic disease medications, including biologics, are allowed in the groups.

The primary outcome of the trial is the proportion of participants who have a protective antibody response at week 4. Secondary outcomes will examine various antibody responses at intervals, changes in disease activity across autoimmune diseases, adverse events, and SARS-CoV-2 infections out to 48 weeks.

Study participants will be followed for a total of 13 months. Preliminary results are expected in November 2021, according to the National Institutes of Health.

The trial is being led by Judith James, MD, PhD; Meggan Mackay, MD, MS; Dinesh Khanna, MBBS, MSc; and Amit Bar-Or, MD.

jevans@mdedge.com

In the wake of the Centers for Disease Control and Prevention’s recommendation for a third COVID-19 mRNA vaccine dose for immunocompromised people and the Food and Drug Administration’s authorization of the third dose, the National Institute of Allergy and Infectious Diseases has begun a phase 2 trial to assess the antibody response to a booster dose of the Pfizer-BioNTech, Moderna, or Janssen vaccine in people with autoimmune disease who did not respond to their original COVID-19 vaccine regimen, according to an announcement.

The investigators of the trial, called COVID‐19 Booster Vaccine in Autoimmune Disease Non‐Responders, also want to determine if pausing immunosuppressive therapy for autoimmune disease improves the antibody response to an extra dose of a COVID-19 vaccine.

The trial will specifically look at the effects of mycophenolate mofetil (MMF) or mycophenolic acid (MPA), and methotrexate (MTX), or receipt of B cell–depletion therapy such as rituximab within the past 12 months on immune response to a booster dose in people with systemic lupus erythematosus, rheumatoid arthritis, multiple sclerosis, systemic sclerosis, or pemphigus. They have to have either no serologic response to their initial COVID-19 vaccine regimen or a suboptimal response, defined as a Roche Elecsys Anti-SARS-CoV-2 S (RBD) result greater than or equal to 50 U/mL.

The results of studies conducted in solid-organ transplant recipients who take immunosuppressants showed that an extra dose of vaccine could improve the immune response to the vaccine in many of the individuals, which suggests that the same approach might work in people with autoimmune disease who need treatment with immunosuppressive drugs. Improving the immune response of people with autoimmune disease to COVID-19 vaccines is important because higher rates of severe COVID-19 and death have been reported in this group of patients than in the general population, and it is unclear whether this is attributable to the autoimmune disease, the immunosuppressive medications taken to treat it, or both.

The open-label trial, conducted by the NIAID-funded Autoimmunity Centers of Excellence, aims to enroll 600 people aged 18 years and older with those conditions at 15-20 sites in the United States.

Because medications commonly taken by people with these conditions have been associated with poorer immune responses to vaccines, the trial will randomize the following two cohorts to stop or continue taking their immunosuppressive medication(s) or stop them before and after the booster according to protocol:

• Cohort 1 includes people who are taking MMF or MPA, without additional B cell–depleting medications or MTX.
• Cohort 2 includes people who are taking MTX without additional B cell–depleting medications or MMF/MPA.

A third, nonrandomized cohort consists of people who have received B cell–depletion therapy within the past 12 months regardless of whether they are also taking MMF/MPA or MTX.

Besides the cohort-specific exclusions, other rheumatic disease medications, including biologics, are allowed in the groups.

The primary outcome of the trial is the proportion of participants who have a protective antibody response at week 4. Secondary outcomes will examine various antibody responses at intervals, changes in disease activity across autoimmune diseases, adverse events, and SARS-CoV-2 infections out to 48 weeks.

Study participants will be followed for a total of 13 months. Preliminary results are expected in November 2021, according to the National Institutes of Health.

The trial is being led by Judith James, MD, PhD; Meggan Mackay, MD, MS; Dinesh Khanna, MBBS, MSc; and Amit Bar-Or, MD.

jevans@mdedge.com

An increasing number of comorbidities in patients with rheumatoid arthritis correlates with a lower likelihood of reaching treatment targets, according to an analysis conducted with a series of large real-world datasets and presented in a symposium sponsored by the Rheumatology Research Foundation.

When compared to those with the lowest burden of comorbidity in one of these analyses, those with the highest had a nearly 50% lower likelihood (odds ratio, 0.54; 95% confidence interval [CI], 0.34-0.85) of achieving low disease activity or remission, according to Bryant England, MD, PhD, assistant professor in the division of rheumatology at the University of Nebraska, Omaha.

“Patients with more comorbidities struggle to reach treatment targets,” Dr. England said. In the treatment of RA, “we typically focus only on the joints, but these data suggest we need to begin to think more holistically about managing these patients.”

Both the American College of Rheumatology (ACR) and the European Alliance of Associations for Rheumatology (EULAR) endorse a treat-to-target management approach in RA guidelines, but only a proportion of patients reach their targets, according to Dr. England. In his series of analyses, Dr. England has been exploring the role of comorbidities as one of the contributing factors.

Looking for real-world data, Dr. England evaluated comorbidities in the Veterans Affairs Rheumatoid Arthritis Registry, which has a male predominant population, the National Databank for Rheumatic Diseases, which is female predominant, the Truven Health Analytics MarketScan Database, and the Rheumatology Informatics System for Effectiveness Registry (RISE).
 

Comorbidities accrue more quickly in RA patients

All of these real-world data support the premise that comorbidities are higher in patients with RA than in those without, and show that the burden of comorbidities rises more quickly in patients with RA. For example, the average number of comorbidities in the MarketScan database of recently diagnosed RA patients was 2.6. Five years later, the average doubled to more than 5. For those without RA, the average at the baseline evaluation was 1.6 and remained below 3 at 5 years.

For the burden of comorbidities in RA, Dr. England prefers the term “multimorbidity” because he believes it captures the interconnections of these chronic diseases, many of which trigger or exacerbate others. When he looked at health history 2 years before the RA diagnosis, multimorbidities were already somewhat higher, but he found that burden “takes off” in the peri-diagnostic period and climbs steeply thereafter.

“The data tell us that multimorbidity becomes more problematic throughout the RA disease course,” said Dr. England, who published some of these data only a few weeks prior to his presentation.

In one effort to evaluate how multimorbidity affects treatment choices and outcome, he selected patients with persistently active disease from the RISE registry, a group expected to be candidates for a treatment change or escalation. The data suggested patients with multimorbidity were less likely than were those without to receive a change of therapy in response to their active disease, but it also demonstrated that patients with multimorbidity were less likely to achieve remission or low disease activity even if the medications were changed.

Each comorbidity lowers odds of remission

When relative burden of comorbidities was assessed by RxRisk score, a validated medication-based measure of chronic disease that recognizes 46 categories of chronic conditions, there was about a 5% lower odds ratio for each RxRisk unit of increase in comorbidity. The relationship was consistent across various cohorts of patients evaluated, according to Dr. England.

When looking for patterns of comorbidities in these large datasets using machine learning, Dr. England reported that there were “striking” relationships between organ systems. This included a pattern of cardiometabolic multimorbidity, cardiopulmonary multimorbidity, and mental health and chronic pain multimorbidity. Surprisingly, the same patterns could be identified in those with or without RA, but the prevalence differed.

“RA was closely associated with all of these different multimorbidity patterns, but the odds of having these patterns were one- to threefold greater,” Dr. England reported.

“The multimorbidity pattern most closely associated with RA was mental health and chronic pain,” he added, noting that the same results were observed across the datasets evaluated.

The implication of this work is that multimorbidity exerts an adverse effect on the course of RA and might be an appropriate target of therapies to improve RA outcomes. Although Dr. England called for better tools to measure multimorbidity and consider how it can be addressed systematically in RA patients with the intention of improving RA control, he believes this is an important direction of research.

“What our data show is that we need to begin to think more holistically about these other diseases in RA patients,” he said.
 

Others support targeting of comorbidities

Vanessa L. Kronzer, MD, a rheumatology fellow at Mayo Clinic, Rochester, Minn., agreed. An author of a study that identified 11 comorbidities significantly associated with RA, either as conditions that predispose to RA or that commonly develop in patients with RA, Dr. Kronzer has drawn the same conclusion in regard to targeting comorbidities in the RA patient.

“Based on mounting evidence that multimorbidity is associated with RA and RA disease activity, taking a broader view of the patient as a whole and his or her comorbidities may help us to not only predict RA but also achieve over disease-specific goals,” Dr. Kronzer said in an interview.

“I suspect that certain comorbidities, perhaps depression as an example, may play a particularly strong role in perpetuating high RA disease activity,” she added. She considers this a ripe area of study for improving clinical strategies in RA.

“Finding out which ones [perpetuate RA] and targeting them could be a reasonable approach to moving forward,” Dr. Kronzer said.

Dr. England and Dr. Kronzer reported having no potential conflicts of interest.

An increasing number of comorbidities in patients with rheumatoid arthritis correlates with a lower likelihood of reaching treatment targets, according to an analysis conducted with a series of large real-world datasets and presented in a symposium sponsored by the Rheumatology Research Foundation.

When compared to those with the lowest burden of comorbidity in one of these analyses, those with the highest had a nearly 50% lower likelihood (odds ratio, 0.54; 95% confidence interval [CI], 0.34-0.85) of achieving low disease activity or remission, according to Bryant England, MD, PhD, assistant professor in the division of rheumatology at the University of Nebraska, Omaha.

“Patients with more comorbidities struggle to reach treatment targets,” Dr. England said. In the treatment of RA, “we typically focus only on the joints, but these data suggest we need to begin to think more holistically about managing these patients.”

Both the American College of Rheumatology (ACR) and the European Alliance of Associations for Rheumatology (EULAR) endorse a treat-to-target management approach in RA guidelines, but only a proportion of patients reach their targets, according to Dr. England. In his series of analyses, Dr. England has been exploring the role of comorbidities as one of the contributing factors.

Looking for real-world data, Dr. England evaluated comorbidities in the Veterans Affairs Rheumatoid Arthritis Registry, which has a male predominant population, the National Databank for Rheumatic Diseases, which is female predominant, the Truven Health Analytics MarketScan Database, and the Rheumatology Informatics System for Effectiveness Registry (RISE).
 

Comorbidities accrue more quickly in RA patients

All of these real-world data support the premise that comorbidities are higher in patients with RA than in those without, and show that the burden of comorbidities rises more quickly in patients with RA. For example, the average number of comorbidities in the MarketScan database of recently diagnosed RA patients was 2.6. Five years later, the average doubled to more than 5. For those without RA, the average at the baseline evaluation was 1.6 and remained below 3 at 5 years.

For the burden of comorbidities in RA, Dr. England prefers the term “multimorbidity” because he believes it captures the interconnections of these chronic diseases, many of which trigger or exacerbate others. When he looked at health history 2 years before the RA diagnosis, multimorbidities were already somewhat higher, but he found that burden “takes off” in the peri-diagnostic period and climbs steeply thereafter.

“The data tell us that multimorbidity becomes more problematic throughout the RA disease course,” said Dr. England, who published some of these data only a few weeks prior to his presentation.

In one effort to evaluate how multimorbidity affects treatment choices and outcome, he selected patients with persistently active disease from the RISE registry, a group expected to be candidates for a treatment change or escalation. The data suggested patients with multimorbidity were less likely than were those without to receive a change of therapy in response to their active disease, but it also demonstrated that patients with multimorbidity were less likely to achieve remission or low disease activity even if the medications were changed.

Each comorbidity lowers odds of remission

When relative burden of comorbidities was assessed by RxRisk score, a validated medication-based measure of chronic disease that recognizes 46 categories of chronic conditions, there was about a 5% lower odds ratio for each RxRisk unit of increase in comorbidity. The relationship was consistent across various cohorts of patients evaluated, according to Dr. England.

When looking for patterns of comorbidities in these large datasets using machine learning, Dr. England reported that there were “striking” relationships between organ systems. This included a pattern of cardiometabolic multimorbidity, cardiopulmonary multimorbidity, and mental health and chronic pain multimorbidity. Surprisingly, the same patterns could be identified in those with or without RA, but the prevalence differed.

“RA was closely associated with all of these different multimorbidity patterns, but the odds of having these patterns were one- to threefold greater,” Dr. England reported.

“The multimorbidity pattern most closely associated with RA was mental health and chronic pain,” he added, noting that the same results were observed across the datasets evaluated.

The implication of this work is that multimorbidity exerts an adverse effect on the course of RA and might be an appropriate target of therapies to improve RA outcomes. Although Dr. England called for better tools to measure multimorbidity and consider how it can be addressed systematically in RA patients with the intention of improving RA control, he believes this is an important direction of research.

“What our data show is that we need to begin to think more holistically about these other diseases in RA patients,” he said.
 

Others support targeting of comorbidities

Vanessa L. Kronzer, MD, a rheumatology fellow at Mayo Clinic, Rochester, Minn., agreed. An author of a study that identified 11 comorbidities significantly associated with RA, either as conditions that predispose to RA or that commonly develop in patients with RA, Dr. Kronzer has drawn the same conclusion in regard to targeting comorbidities in the RA patient.

“Based on mounting evidence that multimorbidity is associated with RA and RA disease activity, taking a broader view of the patient as a whole and his or her comorbidities may help us to not only predict RA but also achieve over disease-specific goals,” Dr. Kronzer said in an interview.

“I suspect that certain comorbidities, perhaps depression as an example, may play a particularly strong role in perpetuating high RA disease activity,” she added. She considers this a ripe area of study for improving clinical strategies in RA.

“Finding out which ones [perpetuate RA] and targeting them could be a reasonable approach to moving forward,” Dr. Kronzer said.

Dr. England and Dr. Kronzer reported having no potential conflicts of interest.

An increasing number of comorbidities in patients with rheumatoid arthritis correlates with a lower likelihood of reaching treatment targets, according to an analysis conducted with a series of large real-world datasets and presented in a symposium sponsored by the Rheumatology Research Foundation.

When compared to those with the lowest burden of comorbidity in one of these analyses, those with the highest had a nearly 50% lower likelihood (odds ratio, 0.54; 95% confidence interval [CI], 0.34-0.85) of achieving low disease activity or remission, according to Bryant England, MD, PhD, assistant professor in the division of rheumatology at the University of Nebraska, Omaha.

“Patients with more comorbidities struggle to reach treatment targets,” Dr. England said. In the treatment of RA, “we typically focus only on the joints, but these data suggest we need to begin to think more holistically about managing these patients.”

Both the American College of Rheumatology (ACR) and the European Alliance of Associations for Rheumatology (EULAR) endorse a treat-to-target management approach in RA guidelines, but only a proportion of patients reach their targets, according to Dr. England. In his series of analyses, Dr. England has been exploring the role of comorbidities as one of the contributing factors.

Looking for real-world data, Dr. England evaluated comorbidities in the Veterans Affairs Rheumatoid Arthritis Registry, which has a male predominant population, the National Databank for Rheumatic Diseases, which is female predominant, the Truven Health Analytics MarketScan Database, and the Rheumatology Informatics System for Effectiveness Registry (RISE).
 

Comorbidities accrue more quickly in RA patients

All of these real-world data support the premise that comorbidities are higher in patients with RA than in those without, and show that the burden of comorbidities rises more quickly in patients with RA. For example, the average number of comorbidities in the MarketScan database of recently diagnosed RA patients was 2.6. Five years later, the average doubled to more than 5. For those without RA, the average at the baseline evaluation was 1.6 and remained below 3 at 5 years.

For the burden of comorbidities in RA, Dr. England prefers the term “multimorbidity” because he believes it captures the interconnections of these chronic diseases, many of which trigger or exacerbate others. When he looked at health history 2 years before the RA diagnosis, multimorbidities were already somewhat higher, but he found that burden “takes off” in the peri-diagnostic period and climbs steeply thereafter.

“The data tell us that multimorbidity becomes more problematic throughout the RA disease course,” said Dr. England, who published some of these data only a few weeks prior to his presentation.

In one effort to evaluate how multimorbidity affects treatment choices and outcome, he selected patients with persistently active disease from the RISE registry, a group expected to be candidates for a treatment change or escalation. The data suggested patients with multimorbidity were less likely than were those without to receive a change of therapy in response to their active disease, but it also demonstrated that patients with multimorbidity were less likely to achieve remission or low disease activity even if the medications were changed.

Each comorbidity lowers odds of remission

When relative burden of comorbidities was assessed by RxRisk score, a validated medication-based measure of chronic disease that recognizes 46 categories of chronic conditions, there was about a 5% lower odds ratio for each RxRisk unit of increase in comorbidity. The relationship was consistent across various cohorts of patients evaluated, according to Dr. England.

When looking for patterns of comorbidities in these large datasets using machine learning, Dr. England reported that there were “striking” relationships between organ systems. This included a pattern of cardiometabolic multimorbidity, cardiopulmonary multimorbidity, and mental health and chronic pain multimorbidity. Surprisingly, the same patterns could be identified in those with or without RA, but the prevalence differed.

“RA was closely associated with all of these different multimorbidity patterns, but the odds of having these patterns were one- to threefold greater,” Dr. England reported.

“The multimorbidity pattern most closely associated with RA was mental health and chronic pain,” he added, noting that the same results were observed across the datasets evaluated.

The implication of this work is that multimorbidity exerts an adverse effect on the course of RA and might be an appropriate target of therapies to improve RA outcomes. Although Dr. England called for better tools to measure multimorbidity and consider how it can be addressed systematically in RA patients with the intention of improving RA control, he believes this is an important direction of research.

“What our data show is that we need to begin to think more holistically about these other diseases in RA patients,” he said.
 

Others support targeting of comorbidities

Vanessa L. Kronzer, MD, a rheumatology fellow at Mayo Clinic, Rochester, Minn., agreed. An author of a study that identified 11 comorbidities significantly associated with RA, either as conditions that predispose to RA or that commonly develop in patients with RA, Dr. Kronzer has drawn the same conclusion in regard to targeting comorbidities in the RA patient.

“Based on mounting evidence that multimorbidity is associated with RA and RA disease activity, taking a broader view of the patient as a whole and his or her comorbidities may help us to not only predict RA but also achieve over disease-specific goals,” Dr. Kronzer said in an interview.

“I suspect that certain comorbidities, perhaps depression as an example, may play a particularly strong role in perpetuating high RA disease activity,” she added. She considers this a ripe area of study for improving clinical strategies in RA.

“Finding out which ones [perpetuate RA] and targeting them could be a reasonable approach to moving forward,” Dr. Kronzer said.

Dr. England and Dr. Kronzer reported having no potential conflicts of interest.

Childhood exposure to parental smoking appears to greatly boost the risk of confirmed cases of rheumatoid arthritis in adult women, although the overall rate is small, a new study reports. The findings, published Aug. 18, 2021, in Arthritis & Rheumatology, follows other evidence that early second-hand smoke exposure can trigger lifelong damage to the immune system.

pmphoto/iStockphoto.com

“We estimated that there is 75% increased risk of adult seropositive RA due to the direct impact of childhood parental smoking,” said study lead author and Brigham & Women’s Hospital epidemiologist Kazuki Yoshida, MD, ScD, referring to an adjusted analysis conducted in the study. “Passive smoking is likely harmful throughout an individual’s life course regarding rheumatoid arthritis but potentially more harmful during the childhood period.”

The researchers launched the study to fill an evidence gap, Dr. Yoshida said in an interview. “Active smoking is a well-established risk factor for RA. However, studies on passive smoking’s impact on RA are sparse, and few studies had a well-characterized cohort of participants with comprehensive data of passive smoking during life course – in utero exposure, childhood exposure, adult exposure – and chart review–adjudicated RA outcomes.”

The study authors retrospectively tracked 90,923 subjects who joined the Nurses’ Health Study II in 1989 when they were aged 25-42. At the study’s start, the average age of subjects was 34.5, 93% were White, and 98% were premenopausal. Almost two-thirds had never smoked themselves, and 65% said their parents had smoked during their childhoods.

Of the subjects, the researchers found that 532 were identified as having RA over a median follow-up period of 27.7 years. Two-thirds of those cases (n = 352) were confirmed as seropositive by clinical testing.

The study linked maternal smoking during pregnancy to confirmed RA in adulthood via a confounder-adjusted analysis (hazard ratio, 1.25; 95% confidence interval, 1.03-1.52), but the connection vanished after researchers adjusted their statistics to reflect possible influences by later exposures to smoke.

After adjustment for confounders, the study linked childhood exposure to parental smoking to a 41% in increase in risk of confirmed adulthood RA (HR, 1.41; 95% CI, 1.08-1.83). A controlled direct effect analysis boosted the excess risk to 75% (HR, 1.75; 95% CI, 1.03-2.98).

This analysis reveals that “childhood parental smoking seems to be associated with adult rheumatoid arthritis beyond what is explained by the fact that childhood passive smoking can promote personal smoking uptake, a known risk factor for rheumatoid arthritis,” Dr. Yoshida said.

The overall rate of RA in the study population – roughly 0.6% – aligns with risk levels in the general population, he said. As a result, “the absolute risk increase may not be extremely high. But the concept that early life exposure may affect immunological health later in life is important.”

Potential pathophysiological mechanisms

Why might parental smoking boost the risk of RA? Exposure to secondhand smoke may irritate the lungs and cause abnormal proteins to form, Dr. Yoshida said. “The immune system produces antibodies in an attempt to attack such abnormal proteins. This immune reaction can spread to other body sites and attack normal tissues, including the joints.”

In addition, “smoking increases the risk of infections, which could in turn increase the risk of RA. Smoking is also known to result in epigenetic changes which could trigger RA in susceptible people,” University of California, San Francisco, autoimmune disease epidemiologist Milena A. Gianfrancesco, PhD, MPH, said in an interview. She cowrote a commentary accompanying the new study.

Other studies have linked smoking exposure to autoimmune disorders. Earlier this year, researchers who tracked 79,806 French women reported at the EULAR 2021 annual meeting that they found a link between exposure to second-hand smoking during childhood or adulthood and higher rates of RA.

Dr. Yoshida and colleagues noted their study’s limitations, including the inability to track cases of RA in subjects up to the age when they entered the nurses research project. Also, only one questionnaire over the entire period of the Nurses’ Health Study II asks subjects about whether they were exposed to secondhand smoke as adults.

The study also says nothing about whether a similar risk exists for males, and the nurse subjects are overwhelmingly White.

Still, Dr. Gianfrancesco praised the study and said it relies on extensive data and strong statistical methods. “The findings are important because they drive home the importance of reducing cigarette smoke exposure to reduce risk of disease,” she said. “They highlight the need to not only focus on one’s personal smoking habits, but also other sources of secondhand smoke exposure.”

She added that children with a family history of RA or other autoimmune diseases are especially vulnerable to the effects of secondhand smoke because they may be more susceptible to developing the diseases themselves. “Rheumatologists and other health care providers should be sure to discuss the risks of smoking with their patients, as well as the risk of secondhand smoke,” she said. “And parents should keep their children away from secondhand smoke in the home or other environments in which smoke is prevalent, such as the home of another caregiver or a workplace if the child accompanies their parent to work.”

The study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, the Rheumatology Research Foundation, and the National Institutes of Health. The study and commentary authors, including Dr. Yoshida and Dr. Gianfrancesco, reported having no relevant disclosures.

Childhood exposure to parental smoking appears to greatly boost the risk of confirmed cases of rheumatoid arthritis in adult women, although the overall rate is small, a new study reports. The findings, published Aug. 18, 2021, in Arthritis & Rheumatology, follows other evidence that early second-hand smoke exposure can trigger lifelong damage to the immune system.

pmphoto/iStockphoto.com

“We estimated that there is 75% increased risk of adult seropositive RA due to the direct impact of childhood parental smoking,” said study lead author and Brigham & Women’s Hospital epidemiologist Kazuki Yoshida, MD, ScD, referring to an adjusted analysis conducted in the study. “Passive smoking is likely harmful throughout an individual’s life course regarding rheumatoid arthritis but potentially more harmful during the childhood period.”

The researchers launched the study to fill an evidence gap, Dr. Yoshida said in an interview. “Active smoking is a well-established risk factor for RA. However, studies on passive smoking’s impact on RA are sparse, and few studies had a well-characterized cohort of participants with comprehensive data of passive smoking during life course – in utero exposure, childhood exposure, adult exposure – and chart review–adjudicated RA outcomes.”

The study authors retrospectively tracked 90,923 subjects who joined the Nurses’ Health Study II in 1989 when they were aged 25-42. At the study’s start, the average age of subjects was 34.5, 93% were White, and 98% were premenopausal. Almost two-thirds had never smoked themselves, and 65% said their parents had smoked during their childhoods.

Of the subjects, the researchers found that 532 were identified as having RA over a median follow-up period of 27.7 years. Two-thirds of those cases (n = 352) were confirmed as seropositive by clinical testing.

The study linked maternal smoking during pregnancy to confirmed RA in adulthood via a confounder-adjusted analysis (hazard ratio, 1.25; 95% confidence interval, 1.03-1.52), but the connection vanished after researchers adjusted their statistics to reflect possible influences by later exposures to smoke.

After adjustment for confounders, the study linked childhood exposure to parental smoking to a 41% in increase in risk of confirmed adulthood RA (HR, 1.41; 95% CI, 1.08-1.83). A controlled direct effect analysis boosted the excess risk to 75% (HR, 1.75; 95% CI, 1.03-2.98).

This analysis reveals that “childhood parental smoking seems to be associated with adult rheumatoid arthritis beyond what is explained by the fact that childhood passive smoking can promote personal smoking uptake, a known risk factor for rheumatoid arthritis,” Dr. Yoshida said.

The overall rate of RA in the study population – roughly 0.6% – aligns with risk levels in the general population, he said. As a result, “the absolute risk increase may not be extremely high. But the concept that early life exposure may affect immunological health later in life is important.”

Potential pathophysiological mechanisms

Why might parental smoking boost the risk of RA? Exposure to secondhand smoke may irritate the lungs and cause abnormal proteins to form, Dr. Yoshida said. “The immune system produces antibodies in an attempt to attack such abnormal proteins. This immune reaction can spread to other body sites and attack normal tissues, including the joints.”

In addition, “smoking increases the risk of infections, which could in turn increase the risk of RA. Smoking is also known to result in epigenetic changes which could trigger RA in susceptible people,” University of California, San Francisco, autoimmune disease epidemiologist Milena A. Gianfrancesco, PhD, MPH, said in an interview. She cowrote a commentary accompanying the new study.

Other studies have linked smoking exposure to autoimmune disorders. Earlier this year, researchers who tracked 79,806 French women reported at the EULAR 2021 annual meeting that they found a link between exposure to second-hand smoking during childhood or adulthood and higher rates of RA.

Dr. Yoshida and colleagues noted their study’s limitations, including the inability to track cases of RA in subjects up to the age when they entered the nurses research project. Also, only one questionnaire over the entire period of the Nurses’ Health Study II asks subjects about whether they were exposed to secondhand smoke as adults.

The study also says nothing about whether a similar risk exists for males, and the nurse subjects are overwhelmingly White.

Still, Dr. Gianfrancesco praised the study and said it relies on extensive data and strong statistical methods. “The findings are important because they drive home the importance of reducing cigarette smoke exposure to reduce risk of disease,” she said. “They highlight the need to not only focus on one’s personal smoking habits, but also other sources of secondhand smoke exposure.”

She added that children with a family history of RA or other autoimmune diseases are especially vulnerable to the effects of secondhand smoke because they may be more susceptible to developing the diseases themselves. “Rheumatologists and other health care providers should be sure to discuss the risks of smoking with their patients, as well as the risk of secondhand smoke,” she said. “And parents should keep their children away from secondhand smoke in the home or other environments in which smoke is prevalent, such as the home of another caregiver or a workplace if the child accompanies their parent to work.”

The study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, the Rheumatology Research Foundation, and the National Institutes of Health. The study and commentary authors, including Dr. Yoshida and Dr. Gianfrancesco, reported having no relevant disclosures.

Childhood exposure to parental smoking appears to greatly boost the risk of confirmed cases of rheumatoid arthritis in adult women, although the overall rate is small, a new study reports. The findings, published Aug. 18, 2021, in Arthritis & Rheumatology, follows other evidence that early second-hand smoke exposure can trigger lifelong damage to the immune system.

pmphoto/iStockphoto.com

“We estimated that there is 75% increased risk of adult seropositive RA due to the direct impact of childhood parental smoking,” said study lead author and Brigham & Women’s Hospital epidemiologist Kazuki Yoshida, MD, ScD, referring to an adjusted analysis conducted in the study. “Passive smoking is likely harmful throughout an individual’s life course regarding rheumatoid arthritis but potentially more harmful during the childhood period.”

The researchers launched the study to fill an evidence gap, Dr. Yoshida said in an interview. “Active smoking is a well-established risk factor for RA. However, studies on passive smoking’s impact on RA are sparse, and few studies had a well-characterized cohort of participants with comprehensive data of passive smoking during life course – in utero exposure, childhood exposure, adult exposure – and chart review–adjudicated RA outcomes.”

The study authors retrospectively tracked 90,923 subjects who joined the Nurses’ Health Study II in 1989 when they were aged 25-42. At the study’s start, the average age of subjects was 34.5, 93% were White, and 98% were premenopausal. Almost two-thirds had never smoked themselves, and 65% said their parents had smoked during their childhoods.

Of the subjects, the researchers found that 532 were identified as having RA over a median follow-up period of 27.7 years. Two-thirds of those cases (n = 352) were confirmed as seropositive by clinical testing.

The study linked maternal smoking during pregnancy to confirmed RA in adulthood via a confounder-adjusted analysis (hazard ratio, 1.25; 95% confidence interval, 1.03-1.52), but the connection vanished after researchers adjusted their statistics to reflect possible influences by later exposures to smoke.

After adjustment for confounders, the study linked childhood exposure to parental smoking to a 41% in increase in risk of confirmed adulthood RA (HR, 1.41; 95% CI, 1.08-1.83). A controlled direct effect analysis boosted the excess risk to 75% (HR, 1.75; 95% CI, 1.03-2.98).

This analysis reveals that “childhood parental smoking seems to be associated with adult rheumatoid arthritis beyond what is explained by the fact that childhood passive smoking can promote personal smoking uptake, a known risk factor for rheumatoid arthritis,” Dr. Yoshida said.

The overall rate of RA in the study population – roughly 0.6% – aligns with risk levels in the general population, he said. As a result, “the absolute risk increase may not be extremely high. But the concept that early life exposure may affect immunological health later in life is important.”

Potential pathophysiological mechanisms

Why might parental smoking boost the risk of RA? Exposure to secondhand smoke may irritate the lungs and cause abnormal proteins to form, Dr. Yoshida said. “The immune system produces antibodies in an attempt to attack such abnormal proteins. This immune reaction can spread to other body sites and attack normal tissues, including the joints.”

In addition, “smoking increases the risk of infections, which could in turn increase the risk of RA. Smoking is also known to result in epigenetic changes which could trigger RA in susceptible people,” University of California, San Francisco, autoimmune disease epidemiologist Milena A. Gianfrancesco, PhD, MPH, said in an interview. She cowrote a commentary accompanying the new study.

Other studies have linked smoking exposure to autoimmune disorders. Earlier this year, researchers who tracked 79,806 French women reported at the EULAR 2021 annual meeting that they found a link between exposure to second-hand smoking during childhood or adulthood and higher rates of RA.

Dr. Yoshida and colleagues noted their study’s limitations, including the inability to track cases of RA in subjects up to the age when they entered the nurses research project. Also, only one questionnaire over the entire period of the Nurses’ Health Study II asks subjects about whether they were exposed to secondhand smoke as adults.

The study also says nothing about whether a similar risk exists for males, and the nurse subjects are overwhelmingly White.

Still, Dr. Gianfrancesco praised the study and said it relies on extensive data and strong statistical methods. “The findings are important because they drive home the importance of reducing cigarette smoke exposure to reduce risk of disease,” she said. “They highlight the need to not only focus on one’s personal smoking habits, but also other sources of secondhand smoke exposure.”

She added that children with a family history of RA or other autoimmune diseases are especially vulnerable to the effects of secondhand smoke because they may be more susceptible to developing the diseases themselves. “Rheumatologists and other health care providers should be sure to discuss the risks of smoking with their patients, as well as the risk of secondhand smoke,” she said. “And parents should keep their children away from secondhand smoke in the home or other environments in which smoke is prevalent, such as the home of another caregiver or a workplace if the child accompanies their parent to work.”

The study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases, the Rheumatology Research Foundation, and the National Institutes of Health. The study and commentary authors, including Dr. Yoshida and Dr. Gianfrancesco, reported having no relevant disclosures.

New efforts – including the development of drugs that target mitochondrial pathways and others that target androgen receptors selectively – are underway for treating sarcopenia in rheumatic diseases, but so far the results have been mixed, an expert said at the Pan American League of Associations for Rheumatology (PANLAR) 2021 Annual Meeting, held recently as a virtual event.

Addressing the problem of reduced muscle mass – experienced by many patients with rheumatic diseases, owing in part to the processes of inflammation and to pain interfering with exercise – is bound to help with outcomes, inasmuch as lean mass and fat mass are linked with disability and early mortality, said Joshua Baker, MD, associate professor of medicine at the University of Pennsylvania, Philadelphia.

Elamipretide, which works by stabilizing mitochondrial pathways that are disrupted in people with sarcopenia, in particular those with mitochondrial disorders, might be the most promising of the therapies being developed. In a study published last year, patients with mitochondrial myopathy experienced significant improvement in gait speed, fatigue, and physical function after 4 weeks, Dr. Baker said.

It’s “an interesting and exciting approach that we need to see more studies about in the future,” he said.

Studies of selective androgen receptor modulators (SARMs), which are similar to anabolic steroids but only target certain androgen receptors so as to prevent side effects, have been a letdown, Dr. Baker said. The idea with SARMs is to enhance growth of certain tissue, such as muscle, without causing side effects in other tissues. Previous trials found that although this approach increased muscle mass, it didn’t produce improvements in measures of physical function.

A myostatin/activin type II receptor blocker, bimagrumab, was recently found to boost lean mass but without improvement in physical function or gait speed.

Still, the focus on improving sarcopenia is an encouraging development, Dr. Baker said.

“New therapies are in the pipeline, and let’s be optimistic and hope that in the future we’ll have lots of options for these patients,” he said.

For now, resistance training remains the best way to tackle the problem. However, the need to have access to trainers, equipment, and gyms, as well as the presence of comorbidities, can make exercise difficult, he said. In addition, routine nutritional supplements, such as with vitamin D, have not been found to improve outcomes, he noted.

The sheer number of people with sarcopenia should make the search for better inventions a priority, suggested Maria Lorena Brance, MD, PhD, professor of medicine at the National University of Rosario, Argentina.

“Prevalence of sarcopenia is very high in autoimmune disease, with representation between 20% and 30%, depending on the pathology,” she said. “So it’s very important to study the presence of sarcopenia.”

Identifying the problem – by first noticing symptoms and then confirming with tests of muscle strength, such as grip tests – would be a big step, the panelists said. Dr. Baker said that among patients with obesity, sarcopenia is more likely to be overlooked, because such patients might not be weak in an absolute sense but might be weak relative to their size.

Dr. Brance said that it’s important to differentiate the value of vitamin D for someone with normal levels in comparison with someone who has a deficiency. Although evidence does not support the use of vitamin D supplements across the board, supplements have been shown to be helpful for patients with low vitamin D levels, she said.

Xavier Ricardo, MD, PhD, professor at Federal University of Rio Grande, Brazil, suggested that sarcopenia may differ from what meets the eye. At his hospital, researchers are studying sarcopenia in patients with systemic sclerosis and have found that in about 20% to 25% of patients, it is present in levels similar to those that occur in patients with rheumatoid arthritis. Researchers are now examining tissue from biopsies to see whether there are differences between the two conditions in the processes of muscle wasting.

“So far, we’re a little bit surprised,” he said. “We expected to have more sarcopenia in these patients, because they do look more frail, more cachexic sometimes.”

Dr. Baker has received consulting fees from Bristol-Myers Squibb, Burns-White, and Gilead. Dr. Ricardo has received consulting fees, speaker fees, or both from AbbVie, Bristol-Myers Squibb, Eli Lilly, Janssen, Pfizer, Roche, and UCB. Dr. Brance has disclosed no relevant financial relationships.

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

New efforts – including the development of drugs that target mitochondrial pathways and others that target androgen receptors selectively – are underway for treating sarcopenia in rheumatic diseases, but so far the results have been mixed, an expert said at the Pan American League of Associations for Rheumatology (PANLAR) 2021 Annual Meeting, held recently as a virtual event.

Addressing the problem of reduced muscle mass – experienced by many patients with rheumatic diseases, owing in part to the processes of inflammation and to pain interfering with exercise – is bound to help with outcomes, inasmuch as lean mass and fat mass are linked with disability and early mortality, said Joshua Baker, MD, associate professor of medicine at the University of Pennsylvania, Philadelphia.

Elamipretide, which works by stabilizing mitochondrial pathways that are disrupted in people with sarcopenia, in particular those with mitochondrial disorders, might be the most promising of the therapies being developed. In a study published last year, patients with mitochondrial myopathy experienced significant improvement in gait speed, fatigue, and physical function after 4 weeks, Dr. Baker said.

It’s “an interesting and exciting approach that we need to see more studies about in the future,” he said.

Studies of selective androgen receptor modulators (SARMs), which are similar to anabolic steroids but only target certain androgen receptors so as to prevent side effects, have been a letdown, Dr. Baker said. The idea with SARMs is to enhance growth of certain tissue, such as muscle, without causing side effects in other tissues. Previous trials found that although this approach increased muscle mass, it didn’t produce improvements in measures of physical function.

A myostatin/activin type II receptor blocker, bimagrumab, was recently found to boost lean mass but without improvement in physical function or gait speed.

Still, the focus on improving sarcopenia is an encouraging development, Dr. Baker said.

“New therapies are in the pipeline, and let’s be optimistic and hope that in the future we’ll have lots of options for these patients,” he said.

For now, resistance training remains the best way to tackle the problem. However, the need to have access to trainers, equipment, and gyms, as well as the presence of comorbidities, can make exercise difficult, he said. In addition, routine nutritional supplements, such as with vitamin D, have not been found to improve outcomes, he noted.

The sheer number of people with sarcopenia should make the search for better inventions a priority, suggested Maria Lorena Brance, MD, PhD, professor of medicine at the National University of Rosario, Argentina.

“Prevalence of sarcopenia is very high in autoimmune disease, with representation between 20% and 30%, depending on the pathology,” she said. “So it’s very important to study the presence of sarcopenia.”

Identifying the problem – by first noticing symptoms and then confirming with tests of muscle strength, such as grip tests – would be a big step, the panelists said. Dr. Baker said that among patients with obesity, sarcopenia is more likely to be overlooked, because such patients might not be weak in an absolute sense but might be weak relative to their size.

Dr. Brance said that it’s important to differentiate the value of vitamin D for someone with normal levels in comparison with someone who has a deficiency. Although evidence does not support the use of vitamin D supplements across the board, supplements have been shown to be helpful for patients with low vitamin D levels, she said.

Xavier Ricardo, MD, PhD, professor at Federal University of Rio Grande, Brazil, suggested that sarcopenia may differ from what meets the eye. At his hospital, researchers are studying sarcopenia in patients with systemic sclerosis and have found that in about 20% to 25% of patients, it is present in levels similar to those that occur in patients with rheumatoid arthritis. Researchers are now examining tissue from biopsies to see whether there are differences between the two conditions in the processes of muscle wasting.

“So far, we’re a little bit surprised,” he said. “We expected to have more sarcopenia in these patients, because they do look more frail, more cachexic sometimes.”

Dr. Baker has received consulting fees from Bristol-Myers Squibb, Burns-White, and Gilead. Dr. Ricardo has received consulting fees, speaker fees, or both from AbbVie, Bristol-Myers Squibb, Eli Lilly, Janssen, Pfizer, Roche, and UCB. Dr. Brance has disclosed no relevant financial relationships.

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

New efforts – including the development of drugs that target mitochondrial pathways and others that target androgen receptors selectively – are underway for treating sarcopenia in rheumatic diseases, but so far the results have been mixed, an expert said at the Pan American League of Associations for Rheumatology (PANLAR) 2021 Annual Meeting, held recently as a virtual event.

Addressing the problem of reduced muscle mass – experienced by many patients with rheumatic diseases, owing in part to the processes of inflammation and to pain interfering with exercise – is bound to help with outcomes, inasmuch as lean mass and fat mass are linked with disability and early mortality, said Joshua Baker, MD, associate professor of medicine at the University of Pennsylvania, Philadelphia.

Elamipretide, which works by stabilizing mitochondrial pathways that are disrupted in people with sarcopenia, in particular those with mitochondrial disorders, might be the most promising of the therapies being developed. In a study published last year, patients with mitochondrial myopathy experienced significant improvement in gait speed, fatigue, and physical function after 4 weeks, Dr. Baker said.

It’s “an interesting and exciting approach that we need to see more studies about in the future,” he said.

Studies of selective androgen receptor modulators (SARMs), which are similar to anabolic steroids but only target certain androgen receptors so as to prevent side effects, have been a letdown, Dr. Baker said. The idea with SARMs is to enhance growth of certain tissue, such as muscle, without causing side effects in other tissues. Previous trials found that although this approach increased muscle mass, it didn’t produce improvements in measures of physical function.

A myostatin/activin type II receptor blocker, bimagrumab, was recently found to boost lean mass but without improvement in physical function or gait speed.

Still, the focus on improving sarcopenia is an encouraging development, Dr. Baker said.

“New therapies are in the pipeline, and let’s be optimistic and hope that in the future we’ll have lots of options for these patients,” he said.

For now, resistance training remains the best way to tackle the problem. However, the need to have access to trainers, equipment, and gyms, as well as the presence of comorbidities, can make exercise difficult, he said. In addition, routine nutritional supplements, such as with vitamin D, have not been found to improve outcomes, he noted.

The sheer number of people with sarcopenia should make the search for better inventions a priority, suggested Maria Lorena Brance, MD, PhD, professor of medicine at the National University of Rosario, Argentina.

“Prevalence of sarcopenia is very high in autoimmune disease, with representation between 20% and 30%, depending on the pathology,” she said. “So it’s very important to study the presence of sarcopenia.”

Identifying the problem – by first noticing symptoms and then confirming with tests of muscle strength, such as grip tests – would be a big step, the panelists said. Dr. Baker said that among patients with obesity, sarcopenia is more likely to be overlooked, because such patients might not be weak in an absolute sense but might be weak relative to their size.

Dr. Brance said that it’s important to differentiate the value of vitamin D for someone with normal levels in comparison with someone who has a deficiency. Although evidence does not support the use of vitamin D supplements across the board, supplements have been shown to be helpful for patients with low vitamin D levels, she said.

Xavier Ricardo, MD, PhD, professor at Federal University of Rio Grande, Brazil, suggested that sarcopenia may differ from what meets the eye. At his hospital, researchers are studying sarcopenia in patients with systemic sclerosis and have found that in about 20% to 25% of patients, it is present in levels similar to those that occur in patients with rheumatoid arthritis. Researchers are now examining tissue from biopsies to see whether there are differences between the two conditions in the processes of muscle wasting.

“So far, we’re a little bit surprised,” he said. “We expected to have more sarcopenia in these patients, because they do look more frail, more cachexic sometimes.”

Dr. Baker has received consulting fees from Bristol-Myers Squibb, Burns-White, and Gilead. Dr. Ricardo has received consulting fees, speaker fees, or both from AbbVie, Bristol-Myers Squibb, Eli Lilly, Janssen, Pfizer, Roche, and UCB. Dr. Brance has disclosed no relevant financial relationships.

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

With worldwide supplies of tocilizumab dwindling as the COVID-19 pandemic rages on, a shortage of the agent will persist “for at least the next several weeks,” according to Genentech, the Roche unit that manufactures tocilizumab under the trade name Actemra IV.

The World Health Organization and Unitaid have called on Genentech to guarantee equitable distribution of the biologic agent globally and to ease up on technology transfer restrictions to make the treatment more accessible.

At this point, supplies of tocilizumab for subcutaneous use to treat rheumatoid arthritis and its other approved indications for inflammatory conditions aren’t as dire, but Genentech is watching them as well, the company says.

In June, the Food and Drug Administration issued an emergency use authorization for intravenous tocilizumab for hospitalized COVID-19 patients. Since then, it has been included in the WHO Therapeutics and COVID-19: living guideline. And on the same day Genentech and Roche reported the tocilizumab shortage, the European Medicines Agency posted a statement that it had started evaluating RoActemra, the European brand name for tocilizumab, for hospitalized COVID-19 patients.

The FDA authorization has caused an unprecedented run on supplies for the biologic agent, which is FDA approved to treat RA, giant cell arteritis, systemic sclerosis–associated interstitial lung disease, polyarticular juvenile idiopathic arthritis, systemic juvenile idiopathic arthritis, and cytokine release syndrome. 
 

Depleted stocks

In the United States, stocks of the 200- and 400-mg units were unavailable, according to an FDA update in mid-August on its website, and the 80-mg/4-mL unit is available by drop ship only. Supplies of 80-mg units were expected to be depleted by the end of the third week in August, Genentech said in a press release.

The company expects to resupply stocks by the end of August. “However,” the Genentech statement added, “if the pandemic continues to spread at its current pace, we anticipate additional periods of stockout in the weeks and months ahead.”

For patients with RA or other approved indications taking the subcutaneous formulation – pens and prefilled syringes – supplies continue to be available, but, the company added, “the supply situation continues to evolve.” The subcutaneous formulations aren’t authorized for use in COVID-19 patients. However, the American Society of Health-System Pharmacists’ website lists the 162-mg/0.9-mL prefilled syringe as one of the products affected by the shortage.

In a separate statement, Roche said that demand for tocilizumab increased 300% in developing countries over prepandemic orders, and that U.S. demand spiked more than 400% in the first 2 weeks of August.

Roche laid out four reasons for the shortage: global manufacturing capacity limits; raw material shortages; the overall complex process of manufacturing biologic agents; and “the dynamically evolving nature of the pandemic.”

The Roche statement noted the company ramped up manufacturing of tocilizumab more than 100% over prepandemic capacity.

With regard to issues WHO and Unitaid raised in their statement, Roche stated that about 60% of its COVID-19 supplies have gone to developing countries, and that Roche and partner Chugai – both of whom hold tocilizumab-related patents – won’t assert any patents over its use for COVID-19 in low- and middle-income countries (LMICs) during the pandemic.

“Roche is in the midst of discussions with WHO and we are committed to support access in LMICs as much as we can,” a Roche spokesperson said in an interview.

Blair Solow, MD, chair of the American College of Rheumatology’s government affairs committee, said the organization supports the equitable distribution of tocilizumab. “We will work to ensure that our patients continue to have access to the medications they need,” she said. “We will continue to engage with the FDA and others to address shortages and ensure patient access to critical therapies.”

The ACR said that any health care professionals having difficulty getting tocilizumab IV or any other COVID-19-related issues can contact the organization at COVID@rheumatology.org.

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

With worldwide supplies of tocilizumab dwindling as the COVID-19 pandemic rages on, a shortage of the agent will persist “for at least the next several weeks,” according to Genentech, the Roche unit that manufactures tocilizumab under the trade name Actemra IV.

The World Health Organization and Unitaid have called on Genentech to guarantee equitable distribution of the biologic agent globally and to ease up on technology transfer restrictions to make the treatment more accessible.

At this point, supplies of tocilizumab for subcutaneous use to treat rheumatoid arthritis and its other approved indications for inflammatory conditions aren’t as dire, but Genentech is watching them as well, the company says.

In June, the Food and Drug Administration issued an emergency use authorization for intravenous tocilizumab for hospitalized COVID-19 patients. Since then, it has been included in the WHO Therapeutics and COVID-19: living guideline. And on the same day Genentech and Roche reported the tocilizumab shortage, the European Medicines Agency posted a statement that it had started evaluating RoActemra, the European brand name for tocilizumab, for hospitalized COVID-19 patients.

The FDA authorization has caused an unprecedented run on supplies for the biologic agent, which is FDA approved to treat RA, giant cell arteritis, systemic sclerosis–associated interstitial lung disease, polyarticular juvenile idiopathic arthritis, systemic juvenile idiopathic arthritis, and cytokine release syndrome. 
 

Depleted stocks

In the United States, stocks of the 200- and 400-mg units were unavailable, according to an FDA update in mid-August on its website, and the 80-mg/4-mL unit is available by drop ship only. Supplies of 80-mg units were expected to be depleted by the end of the third week in August, Genentech said in a press release.

The company expects to resupply stocks by the end of August. “However,” the Genentech statement added, “if the pandemic continues to spread at its current pace, we anticipate additional periods of stockout in the weeks and months ahead.”

For patients with RA or other approved indications taking the subcutaneous formulation – pens and prefilled syringes – supplies continue to be available, but, the company added, “the supply situation continues to evolve.” The subcutaneous formulations aren’t authorized for use in COVID-19 patients. However, the American Society of Health-System Pharmacists’ website lists the 162-mg/0.9-mL prefilled syringe as one of the products affected by the shortage.

In a separate statement, Roche said that demand for tocilizumab increased 300% in developing countries over prepandemic orders, and that U.S. demand spiked more than 400% in the first 2 weeks of August.

Roche laid out four reasons for the shortage: global manufacturing capacity limits; raw material shortages; the overall complex process of manufacturing biologic agents; and “the dynamically evolving nature of the pandemic.”

The Roche statement noted the company ramped up manufacturing of tocilizumab more than 100% over prepandemic capacity.

With regard to issues WHO and Unitaid raised in their statement, Roche stated that about 60% of its COVID-19 supplies have gone to developing countries, and that Roche and partner Chugai – both of whom hold tocilizumab-related patents – won’t assert any patents over its use for COVID-19 in low- and middle-income countries (LMICs) during the pandemic.

“Roche is in the midst of discussions with WHO and we are committed to support access in LMICs as much as we can,” a Roche spokesperson said in an interview.

Blair Solow, MD, chair of the American College of Rheumatology’s government affairs committee, said the organization supports the equitable distribution of tocilizumab. “We will work to ensure that our patients continue to have access to the medications they need,” she said. “We will continue to engage with the FDA and others to address shortages and ensure patient access to critical therapies.”

The ACR said that any health care professionals having difficulty getting tocilizumab IV or any other COVID-19-related issues can contact the organization at COVID@rheumatology.org.

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

With worldwide supplies of tocilizumab dwindling as the COVID-19 pandemic rages on, a shortage of the agent will persist “for at least the next several weeks,” according to Genentech, the Roche unit that manufactures tocilizumab under the trade name Actemra IV.

The World Health Organization and Unitaid have called on Genentech to guarantee equitable distribution of the biologic agent globally and to ease up on technology transfer restrictions to make the treatment more accessible.

At this point, supplies of tocilizumab for subcutaneous use to treat rheumatoid arthritis and its other approved indications for inflammatory conditions aren’t as dire, but Genentech is watching them as well, the company says.

In June, the Food and Drug Administration issued an emergency use authorization for intravenous tocilizumab for hospitalized COVID-19 patients. Since then, it has been included in the WHO Therapeutics and COVID-19: living guideline. And on the same day Genentech and Roche reported the tocilizumab shortage, the European Medicines Agency posted a statement that it had started evaluating RoActemra, the European brand name for tocilizumab, for hospitalized COVID-19 patients.

The FDA authorization has caused an unprecedented run on supplies for the biologic agent, which is FDA approved to treat RA, giant cell arteritis, systemic sclerosis–associated interstitial lung disease, polyarticular juvenile idiopathic arthritis, systemic juvenile idiopathic arthritis, and cytokine release syndrome. 
 

Depleted stocks

In the United States, stocks of the 200- and 400-mg units were unavailable, according to an FDA update in mid-August on its website, and the 80-mg/4-mL unit is available by drop ship only. Supplies of 80-mg units were expected to be depleted by the end of the third week in August, Genentech said in a press release.

The company expects to resupply stocks by the end of August. “However,” the Genentech statement added, “if the pandemic continues to spread at its current pace, we anticipate additional periods of stockout in the weeks and months ahead.”

For patients with RA or other approved indications taking the subcutaneous formulation – pens and prefilled syringes – supplies continue to be available, but, the company added, “the supply situation continues to evolve.” The subcutaneous formulations aren’t authorized for use in COVID-19 patients. However, the American Society of Health-System Pharmacists’ website lists the 162-mg/0.9-mL prefilled syringe as one of the products affected by the shortage.

In a separate statement, Roche said that demand for tocilizumab increased 300% in developing countries over prepandemic orders, and that U.S. demand spiked more than 400% in the first 2 weeks of August.

Roche laid out four reasons for the shortage: global manufacturing capacity limits; raw material shortages; the overall complex process of manufacturing biologic agents; and “the dynamically evolving nature of the pandemic.”

The Roche statement noted the company ramped up manufacturing of tocilizumab more than 100% over prepandemic capacity.

With regard to issues WHO and Unitaid raised in their statement, Roche stated that about 60% of its COVID-19 supplies have gone to developing countries, and that Roche and partner Chugai – both of whom hold tocilizumab-related patents – won’t assert any patents over its use for COVID-19 in low- and middle-income countries (LMICs) during the pandemic.

“Roche is in the midst of discussions with WHO and we are committed to support access in LMICs as much as we can,” a Roche spokesperson said in an interview.

Blair Solow, MD, chair of the American College of Rheumatology’s government affairs committee, said the organization supports the equitable distribution of tocilizumab. “We will work to ensure that our patients continue to have access to the medications they need,” she said. “We will continue to engage with the FDA and others to address shortages and ensure patient access to critical therapies.”

The ACR said that any health care professionals having difficulty getting tocilizumab IV or any other COVID-19-related issues can contact the organization at COVID@rheumatology.org.

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