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FDA investigates issues with rivaroxaban trial
The US Food and Drug Administration (FDA) is investigating issues surrounding a defect in the device that was used to test international normalized ratios (INRs) in the ROCKET AF trial.
ROCKET AF was used to support approval for the direct oral anticoagulant rivaroxaban (Xarelto) in the US and European Union.
According to a legal brief filed in federal court earlier this week, the FDA has asked rivaroxaban’s manufacturer, Johnson & Johnson, if there was evidence of the defect in the INR-measuring device while ROCKET AF was underway.
The trial was a comparison of rivaroxaban and warfarin in patients with nonvalvular atrial fibrillation.
Results suggested rivaroxaban was noninferior to warfarin for preventing stroke or systemic embolism. And there was no significant difference between the treatment arms with regard to major or nonmajor clinically relevant bleeding.
However, an article recently published in The BMJ questioned these results because the Alere INRatio Monitor System (INRatio Monitor or INRatio2 Monitor and INRatio Test Strips), which was used to measure patients’ INRs during the trial, was recalled in December 2014 after giving falsely low test results.
The article suggested the system could have provided falsely low INR values in some patients in the warfarin arm. The lower values could have led investigators to give incorrect doses of warfarin, increasing the risk of bleeding for those patients and therefore giving a false impression of the comparative safety of rivaroxaban.
Two days after The BMJ article was published, the European Medicines Agency released a statement saying the defect with the INRatio system does not change the overall conclusions of ROCKET AF.
Researchers at the Duke Clinical Research Institute, which oversaw ROCKET AF, also assessed the impact of the INRatio defect. Their findings, published in NEJM, suggested the defect did not affect the trial’s outcome.
However, it appears the FDA still has some concerns. The agency has asked Johnson & Johnson whether there was evidence of the INRatio defect during ROCKET AF, according to a legal brief filed by lawyers representing individuals claiming injuries resulting from rivaroxaban.
The brief also cited internal emails that, according to the lawyers, showed some ROCKET AF investigators questioned the accuracy of the INRatio system during the trial. In fact, the lawyers said a special program was set up to investigate the malfunctions, but Johnson & Johnson never disclosed this information to the FDA. 
The US Food and Drug Administration (FDA) is investigating issues surrounding a defect in the device that was used to test international normalized ratios (INRs) in the ROCKET AF trial.
ROCKET AF was used to support approval for the direct oral anticoagulant rivaroxaban (Xarelto) in the US and European Union.
According to a legal brief filed in federal court earlier this week, the FDA has asked rivaroxaban’s manufacturer, Johnson & Johnson, if there was evidence of the defect in the INR-measuring device while ROCKET AF was underway.
The trial was a comparison of rivaroxaban and warfarin in patients with nonvalvular atrial fibrillation.
Results suggested rivaroxaban was noninferior to warfarin for preventing stroke or systemic embolism. And there was no significant difference between the treatment arms with regard to major or nonmajor clinically relevant bleeding.
However, an article recently published in The BMJ questioned these results because the Alere INRatio Monitor System (INRatio Monitor or INRatio2 Monitor and INRatio Test Strips), which was used to measure patients’ INRs during the trial, was recalled in December 2014 after giving falsely low test results.
The article suggested the system could have provided falsely low INR values in some patients in the warfarin arm. The lower values could have led investigators to give incorrect doses of warfarin, increasing the risk of bleeding for those patients and therefore giving a false impression of the comparative safety of rivaroxaban.
Two days after The BMJ article was published, the European Medicines Agency released a statement saying the defect with the INRatio system does not change the overall conclusions of ROCKET AF.
Researchers at the Duke Clinical Research Institute, which oversaw ROCKET AF, also assessed the impact of the INRatio defect. Their findings, published in NEJM, suggested the defect did not affect the trial’s outcome.
However, it appears the FDA still has some concerns. The agency has asked Johnson & Johnson whether there was evidence of the INRatio defect during ROCKET AF, according to a legal brief filed by lawyers representing individuals claiming injuries resulting from rivaroxaban.
The brief also cited internal emails that, according to the lawyers, showed some ROCKET AF investigators questioned the accuracy of the INRatio system during the trial. In fact, the lawyers said a special program was set up to investigate the malfunctions, but Johnson & Johnson never disclosed this information to the FDA.
The US Food and Drug Administration (FDA) is investigating issues surrounding a defect in the device that was used to test international normalized ratios (INRs) in the ROCKET AF trial.
ROCKET AF was used to support approval for the direct oral anticoagulant rivaroxaban (Xarelto) in the US and European Union.
According to a legal brief filed in federal court earlier this week, the FDA has asked rivaroxaban’s manufacturer, Johnson & Johnson, if there was evidence of the defect in the INR-measuring device while ROCKET AF was underway.
The trial was a comparison of rivaroxaban and warfarin in patients with nonvalvular atrial fibrillation.
Results suggested rivaroxaban was noninferior to warfarin for preventing stroke or systemic embolism. And there was no significant difference between the treatment arms with regard to major or nonmajor clinically relevant bleeding.
However, an article recently published in The BMJ questioned these results because the Alere INRatio Monitor System (INRatio Monitor or INRatio2 Monitor and INRatio Test Strips), which was used to measure patients’ INRs during the trial, was recalled in December 2014 after giving falsely low test results.
The article suggested the system could have provided falsely low INR values in some patients in the warfarin arm. The lower values could have led investigators to give incorrect doses of warfarin, increasing the risk of bleeding for those patients and therefore giving a false impression of the comparative safety of rivaroxaban.
Two days after The BMJ article was published, the European Medicines Agency released a statement saying the defect with the INRatio system does not change the overall conclusions of ROCKET AF.
Researchers at the Duke Clinical Research Institute, which oversaw ROCKET AF, also assessed the impact of the INRatio defect. Their findings, published in NEJM, suggested the defect did not affect the trial’s outcome.
However, it appears the FDA still has some concerns. The agency has asked Johnson & Johnson whether there was evidence of the INRatio defect during ROCKET AF, according to a legal brief filed by lawyers representing individuals claiming injuries resulting from rivaroxaban.
The brief also cited internal emails that, according to the lawyers, showed some ROCKET AF investigators questioned the accuracy of the INRatio system during the trial. In fact, the lawyers said a special program was set up to investigate the malfunctions, but Johnson & Johnson never disclosed this information to the FDA.
Adjunct T-cell therapy granted orphan designation
The US Food and Drug Administration (FDA) has granted orphan drug designation for BPX-501, an adjunct T-cell therapy.
The designation is for the combination of BPX-501 genetically modified T cells and the activator agent rimiducid as replacement T-cell therapy for the treatment of immunodeficiency and graft-versus-host disease (GVHD) after allogeneic hematopoietic stem cell transplant (HSCT).
BPX-501 consists of genetically modified donor T cells incorporating the CaspaCIDe safety switch, which is designed to eliminate cells in the event of toxicity.
The CaspaCIDe switch consists of the CID-binding domain coupled to the signaling domain of caspase-9, an enzyme that is part of the apoptotic pathway. Infusion of rimiducid is designed to trigger activation of this domain of caspase-9 (iCasp9), which leads to selective apoptosis of the CaspaCIDe-containing cells.
This technology is intended to provide a safety net to eliminate BPX-501 alloreactive T cells if severe GVHD occurs, ostensibly enabling physicians to more safely perform haploidentical HSCTs by adding back the BPX-501 genetically engineered T cells to speed immune reconstitution and provide control over viral infections.
Following an allogeneic HSCT, a lack of sufficient mature T cells constitutes immune deficiency that can contribute to infections, viral reactivation, and relapse.
The ability to correct this immune deficiency by adding back mature donor T cells, without raising the risk of uncontrollable GVHD, has the potential to change the risk profile of allogeneic transplant, according to Bellicum Pharmaceuticals, the company developing BPX-501.
BPX-501 is being evaluated in multiple phase 1/2 trials in adults and pediatric patients with leukemias, lymphomas, and genetic blood diseases in the US and Europe.
About orphan designation
The FDA’s Office of Orphan Products Development grants orphan designation to drugs and biologics intended to treat, diagnose, or prevent rare diseases and disorders that affect fewer than 200,000 people in the US.
Orphan designation qualifies a company for various development incentives, including tax credits for qualified clinical testing and marketing exclusivity for a period of 7 years.
The US Food and Drug Administration (FDA) has granted orphan drug designation for BPX-501, an adjunct T-cell therapy.
The designation is for the combination of BPX-501 genetically modified T cells and the activator agent rimiducid as replacement T-cell therapy for the treatment of immunodeficiency and graft-versus-host disease (GVHD) after allogeneic hematopoietic stem cell transplant (HSCT).
BPX-501 consists of genetically modified donor T cells incorporating the CaspaCIDe safety switch, which is designed to eliminate cells in the event of toxicity.
The CaspaCIDe switch consists of the CID-binding domain coupled to the signaling domain of caspase-9, an enzyme that is part of the apoptotic pathway. Infusion of rimiducid is designed to trigger activation of this domain of caspase-9 (iCasp9), which leads to selective apoptosis of the CaspaCIDe-containing cells.
This technology is intended to provide a safety net to eliminate BPX-501 alloreactive T cells if severe GVHD occurs, ostensibly enabling physicians to more safely perform haploidentical HSCTs by adding back the BPX-501 genetically engineered T cells to speed immune reconstitution and provide control over viral infections.
Following an allogeneic HSCT, a lack of sufficient mature T cells constitutes immune deficiency that can contribute to infections, viral reactivation, and relapse.
The ability to correct this immune deficiency by adding back mature donor T cells, without raising the risk of uncontrollable GVHD, has the potential to change the risk profile of allogeneic transplant, according to Bellicum Pharmaceuticals, the company developing BPX-501.
BPX-501 is being evaluated in multiple phase 1/2 trials in adults and pediatric patients with leukemias, lymphomas, and genetic blood diseases in the US and Europe.
About orphan designation
The FDA’s Office of Orphan Products Development grants orphan designation to drugs and biologics intended to treat, diagnose, or prevent rare diseases and disorders that affect fewer than 200,000 people in the US.
Orphan designation qualifies a company for various development incentives, including tax credits for qualified clinical testing and marketing exclusivity for a period of 7 years.
The US Food and Drug Administration (FDA) has granted orphan drug designation for BPX-501, an adjunct T-cell therapy.
The designation is for the combination of BPX-501 genetically modified T cells and the activator agent rimiducid as replacement T-cell therapy for the treatment of immunodeficiency and graft-versus-host disease (GVHD) after allogeneic hematopoietic stem cell transplant (HSCT).
BPX-501 consists of genetically modified donor T cells incorporating the CaspaCIDe safety switch, which is designed to eliminate cells in the event of toxicity.
The CaspaCIDe switch consists of the CID-binding domain coupled to the signaling domain of caspase-9, an enzyme that is part of the apoptotic pathway. Infusion of rimiducid is designed to trigger activation of this domain of caspase-9 (iCasp9), which leads to selective apoptosis of the CaspaCIDe-containing cells.
This technology is intended to provide a safety net to eliminate BPX-501 alloreactive T cells if severe GVHD occurs, ostensibly enabling physicians to more safely perform haploidentical HSCTs by adding back the BPX-501 genetically engineered T cells to speed immune reconstitution and provide control over viral infections.
Following an allogeneic HSCT, a lack of sufficient mature T cells constitutes immune deficiency that can contribute to infections, viral reactivation, and relapse.
The ability to correct this immune deficiency by adding back mature donor T cells, without raising the risk of uncontrollable GVHD, has the potential to change the risk profile of allogeneic transplant, according to Bellicum Pharmaceuticals, the company developing BPX-501.
BPX-501 is being evaluated in multiple phase 1/2 trials in adults and pediatric patients with leukemias, lymphomas, and genetic blood diseases in the US and Europe.
About orphan designation
The FDA’s Office of Orphan Products Development grants orphan designation to drugs and biologics intended to treat, diagnose, or prevent rare diseases and disorders that affect fewer than 200,000 people in the US.
Orphan designation qualifies a company for various development incentives, including tax credits for qualified clinical testing and marketing exclusivity for a period of 7 years.
Product approved to treat hemophilia A in EU
The European Commission has approved a full-length recombinant factor VIII product for the treatment and prevention of bleeding in hemophilia A patients of all ages.
The product, Kovaltry (formerly BAY 81-8973), will be marketed for this indication in the 28 member countries of the European Union, as well as Iceland, Liechtenstein, and Norway.
The approval of Kovaltry is based on results from the LEOPOLD trials—3 multinational trials of patients with severe hemophilia A.
The trials were supported by Bayer HealthCare AG, the company developing Kovaltry.
LEOPOLD I
LEOPOLD I is an open-label, cross-over, phase 3 study of males, ages 12 to 65, with severe hemophilia A. Sixty-two patients were assigned to either 2- or 3-times-weekly dosing with Kovaltry, based on each patient’s phenotype, prior bleeding history, and other factors.
The median annualized bleeding rate (ABR) was 1.0 for all the patients who received Kovaltry prophylaxis, 1.0 for patients who received twice-weekly prophylaxis, and 2.0 for patients who received thrice-weekly prophylaxis.
LEOPOLD II
LEOPOLD II is a randomized, cross-over, open-label trial conducted in males ages 12 to 65. In this phase 3 study, 80 subjects were randomized to receive Kovaltry as a low-dose prophylaxis regimen (n=28) twice per week, high-dose prophylaxis (n=31) 3 times a week, or on-demand treatment (n=21).
The median ABR was significantly lower in patients who received either prophylactic regimen than those who received on-demand treatment—2.0 and 60.0, respectively (P<0.0001). The median ABR was 4.0 for patients who received twice-weekly prophylaxis and 2.0 for patients who received thrice-weekly prophylaxis.
LEOPOLD Kids
LEOPOLD Kids is an open-label, non-randomized, phase 3 study designed to evaluate Kovaltry in children age 12 and younger. The study is divided into 2 parts. Part A enrolled only previously treated children, and part B, which is ongoing, includes only untreated children.
For part A, 51 children received Kovaltry twice a week, 3 times a week, or every other day (according to investigator decision) for at least 50 exposure days. The median ABR within 48 hours of prophylactic injection was 0, and the median ABR independent of the time of injection was 1.9.
Safety results
For all 3 trials, 193 patients were evaluable for safety. Adverse reactions were defined as treatment-emergent adverse events with at least a reasonable suspected causal relationship to Kovaltry.
The researchers said the frequency, type, and severity of adverse reactions in children were similar to those observed in adults and adolescents.
The adverse reactions included headache (7.3%), pyrexia (4.1%), pruritus (3.1%), injection site reactions (2.6%), insomnia (2.6%), rash (2.6%), abdominal pain (2.1%), dyspepsia (2.1%), abdominal discomfort (1.6%), lymphadenopathy (1%), dizziness (1%), allergic dermatitis (1%), heart palpitations (1%), sinus tachycardia (1%), chest discomfort (1%), hypersensitivity (0.5%), dysgeusia (0.5%), urticaria (0.5%), and flushing (0.5%).
None of the patients developed factor VIII inhibitors.
The European Commission has approved a full-length recombinant factor VIII product for the treatment and prevention of bleeding in hemophilia A patients of all ages.
The product, Kovaltry (formerly BAY 81-8973), will be marketed for this indication in the 28 member countries of the European Union, as well as Iceland, Liechtenstein, and Norway.
The approval of Kovaltry is based on results from the LEOPOLD trials—3 multinational trials of patients with severe hemophilia A.
The trials were supported by Bayer HealthCare AG, the company developing Kovaltry.
LEOPOLD I
LEOPOLD I is an open-label, cross-over, phase 3 study of males, ages 12 to 65, with severe hemophilia A. Sixty-two patients were assigned to either 2- or 3-times-weekly dosing with Kovaltry, based on each patient’s phenotype, prior bleeding history, and other factors.
The median annualized bleeding rate (ABR) was 1.0 for all the patients who received Kovaltry prophylaxis, 1.0 for patients who received twice-weekly prophylaxis, and 2.0 for patients who received thrice-weekly prophylaxis.
LEOPOLD II
LEOPOLD II is a randomized, cross-over, open-label trial conducted in males ages 12 to 65. In this phase 3 study, 80 subjects were randomized to receive Kovaltry as a low-dose prophylaxis regimen (n=28) twice per week, high-dose prophylaxis (n=31) 3 times a week, or on-demand treatment (n=21).
The median ABR was significantly lower in patients who received either prophylactic regimen than those who received on-demand treatment—2.0 and 60.0, respectively (P<0.0001). The median ABR was 4.0 for patients who received twice-weekly prophylaxis and 2.0 for patients who received thrice-weekly prophylaxis.
LEOPOLD Kids
LEOPOLD Kids is an open-label, non-randomized, phase 3 study designed to evaluate Kovaltry in children age 12 and younger. The study is divided into 2 parts. Part A enrolled only previously treated children, and part B, which is ongoing, includes only untreated children.
For part A, 51 children received Kovaltry twice a week, 3 times a week, or every other day (according to investigator decision) for at least 50 exposure days. The median ABR within 48 hours of prophylactic injection was 0, and the median ABR independent of the time of injection was 1.9.
Safety results
For all 3 trials, 193 patients were evaluable for safety. Adverse reactions were defined as treatment-emergent adverse events with at least a reasonable suspected causal relationship to Kovaltry.
The researchers said the frequency, type, and severity of adverse reactions in children were similar to those observed in adults and adolescents.
The adverse reactions included headache (7.3%), pyrexia (4.1%), pruritus (3.1%), injection site reactions (2.6%), insomnia (2.6%), rash (2.6%), abdominal pain (2.1%), dyspepsia (2.1%), abdominal discomfort (1.6%), lymphadenopathy (1%), dizziness (1%), allergic dermatitis (1%), heart palpitations (1%), sinus tachycardia (1%), chest discomfort (1%), hypersensitivity (0.5%), dysgeusia (0.5%), urticaria (0.5%), and flushing (0.5%).
None of the patients developed factor VIII inhibitors.
The European Commission has approved a full-length recombinant factor VIII product for the treatment and prevention of bleeding in hemophilia A patients of all ages.
The product, Kovaltry (formerly BAY 81-8973), will be marketed for this indication in the 28 member countries of the European Union, as well as Iceland, Liechtenstein, and Norway.
The approval of Kovaltry is based on results from the LEOPOLD trials—3 multinational trials of patients with severe hemophilia A.
The trials were supported by Bayer HealthCare AG, the company developing Kovaltry.
LEOPOLD I
LEOPOLD I is an open-label, cross-over, phase 3 study of males, ages 12 to 65, with severe hemophilia A. Sixty-two patients were assigned to either 2- or 3-times-weekly dosing with Kovaltry, based on each patient’s phenotype, prior bleeding history, and other factors.
The median annualized bleeding rate (ABR) was 1.0 for all the patients who received Kovaltry prophylaxis, 1.0 for patients who received twice-weekly prophylaxis, and 2.0 for patients who received thrice-weekly prophylaxis.
LEOPOLD II
LEOPOLD II is a randomized, cross-over, open-label trial conducted in males ages 12 to 65. In this phase 3 study, 80 subjects were randomized to receive Kovaltry as a low-dose prophylaxis regimen (n=28) twice per week, high-dose prophylaxis (n=31) 3 times a week, or on-demand treatment (n=21).
The median ABR was significantly lower in patients who received either prophylactic regimen than those who received on-demand treatment—2.0 and 60.0, respectively (P<0.0001). The median ABR was 4.0 for patients who received twice-weekly prophylaxis and 2.0 for patients who received thrice-weekly prophylaxis.
LEOPOLD Kids
LEOPOLD Kids is an open-label, non-randomized, phase 3 study designed to evaluate Kovaltry in children age 12 and younger. The study is divided into 2 parts. Part A enrolled only previously treated children, and part B, which is ongoing, includes only untreated children.
For part A, 51 children received Kovaltry twice a week, 3 times a week, or every other day (according to investigator decision) for at least 50 exposure days. The median ABR within 48 hours of prophylactic injection was 0, and the median ABR independent of the time of injection was 1.9.
Safety results
For all 3 trials, 193 patients were evaluable for safety. Adverse reactions were defined as treatment-emergent adverse events with at least a reasonable suspected causal relationship to Kovaltry.
The researchers said the frequency, type, and severity of adverse reactions in children were similar to those observed in adults and adolescents.
The adverse reactions included headache (7.3%), pyrexia (4.1%), pruritus (3.1%), injection site reactions (2.6%), insomnia (2.6%), rash (2.6%), abdominal pain (2.1%), dyspepsia (2.1%), abdominal discomfort (1.6%), lymphadenopathy (1%), dizziness (1%), allergic dermatitis (1%), heart palpitations (1%), sinus tachycardia (1%), chest discomfort (1%), hypersensitivity (0.5%), dysgeusia (0.5%), urticaria (0.5%), and flushing (0.5%).
None of the patients developed factor VIII inhibitors.
Antiplatelet agent approved for long-term use
Photo courtesy of the CDC
The European Commission has approved use of the antiplatelet agent ticagrelor (Brilique) at a 60 mg dose to treat patients beyond the first year after a heart attack who are at high risk of developing a further atherothrombotic event.
The treatment may be used as continuation therapy after an initial 1-year treatment with 90 mg ticagrelor plus aspirin or after a year of other dual antiplatelet therapy.
This approval is applicable to all 28 European Union (EU) member countries plus Iceland, Norway, and Liechtenstein.
Ticagrelor at a 90 mg dose is already approved in the EU for the prevention of atherothrombotic events in adults with acute coronary syndrome (ACS). In the management of ACS, the recommended maintenance dose of ticagrelor is 90 mg twice daily during the first year after an ACS event.
Now, after the first year, patients with a history of heart attack can continue to be treated with ticagrelor at 60 mg twice daily, which should be taken with a daily maintenance dose of aspirin at 75 mg to 150 mg.
Trial results
The latest EU approval of ticagrelor was based on results from the PEGASUS TIMI-54 study. This trial, which involved more than 21,000 patients, was presented at the American College of Cardiology Congress in March 2015 and simultaneously published in NEJM.
Investigators compared ticagrelor (at 60 mg or 90 mg) plus low-dose aspirin to placebo plus low-dose aspirin in patients who had experienced a heart attack 1 to 3 years prior to study enrollment.
The primary efficacy endpoint was a composite of cardiovascular death, myocardial infarction, or stroke.
The investigators found that patients in either ticagrelor arm were significantly less likely to achieve this endpoint than placebo-treated patients.
At 3 years, the proportion of patients meeting the primary endpoint was 7.85% in the 90 mg group, 7.77% in the 60 mg group, and 9.04% in the placebo group (P=0.008 for 90 mg vs placebo and P=0.004 for 60 mg vs placebo).
Patients receiving ticagrelor also had a significantly higher incidence of major bleeding and dyspnea. The rate of TIMI major bleeding was 2.60% in the 90 mg group, 2.30% in the 60 mg group, and 1.06% in the placebo group (P<0.001 for each ticagrelor dose vs placebo).
The rate of dyspnea was 18.93% in the 90 mg group, 15.84% in 60 mg group, and 6.38% in the placebo group (P<0.001 for both comparisons). The rate of dyspnea leading to treatment discontinuation was 6.5%, 4.55%, and 0.79%, respectively (P<0.001 for both comparisons).
Ticagrelor has been approved in more than 100 countries. The drug is under development by AstraZeneca.
Photo courtesy of the CDC
The European Commission has approved use of the antiplatelet agent ticagrelor (Brilique) at a 60 mg dose to treat patients beyond the first year after a heart attack who are at high risk of developing a further atherothrombotic event.
The treatment may be used as continuation therapy after an initial 1-year treatment with 90 mg ticagrelor plus aspirin or after a year of other dual antiplatelet therapy.
This approval is applicable to all 28 European Union (EU) member countries plus Iceland, Norway, and Liechtenstein.
Ticagrelor at a 90 mg dose is already approved in the EU for the prevention of atherothrombotic events in adults with acute coronary syndrome (ACS). In the management of ACS, the recommended maintenance dose of ticagrelor is 90 mg twice daily during the first year after an ACS event.
Now, after the first year, patients with a history of heart attack can continue to be treated with ticagrelor at 60 mg twice daily, which should be taken with a daily maintenance dose of aspirin at 75 mg to 150 mg.
Trial results
The latest EU approval of ticagrelor was based on results from the PEGASUS TIMI-54 study. This trial, which involved more than 21,000 patients, was presented at the American College of Cardiology Congress in March 2015 and simultaneously published in NEJM.
Investigators compared ticagrelor (at 60 mg or 90 mg) plus low-dose aspirin to placebo plus low-dose aspirin in patients who had experienced a heart attack 1 to 3 years prior to study enrollment.
The primary efficacy endpoint was a composite of cardiovascular death, myocardial infarction, or stroke.
The investigators found that patients in either ticagrelor arm were significantly less likely to achieve this endpoint than placebo-treated patients.
At 3 years, the proportion of patients meeting the primary endpoint was 7.85% in the 90 mg group, 7.77% in the 60 mg group, and 9.04% in the placebo group (P=0.008 for 90 mg vs placebo and P=0.004 for 60 mg vs placebo).
Patients receiving ticagrelor also had a significantly higher incidence of major bleeding and dyspnea. The rate of TIMI major bleeding was 2.60% in the 90 mg group, 2.30% in the 60 mg group, and 1.06% in the placebo group (P<0.001 for each ticagrelor dose vs placebo).
The rate of dyspnea was 18.93% in the 90 mg group, 15.84% in 60 mg group, and 6.38% in the placebo group (P<0.001 for both comparisons). The rate of dyspnea leading to treatment discontinuation was 6.5%, 4.55%, and 0.79%, respectively (P<0.001 for both comparisons).
Ticagrelor has been approved in more than 100 countries. The drug is under development by AstraZeneca.
Photo courtesy of the CDC
The European Commission has approved use of the antiplatelet agent ticagrelor (Brilique) at a 60 mg dose to treat patients beyond the first year after a heart attack who are at high risk of developing a further atherothrombotic event.
The treatment may be used as continuation therapy after an initial 1-year treatment with 90 mg ticagrelor plus aspirin or after a year of other dual antiplatelet therapy.
This approval is applicable to all 28 European Union (EU) member countries plus Iceland, Norway, and Liechtenstein.
Ticagrelor at a 90 mg dose is already approved in the EU for the prevention of atherothrombotic events in adults with acute coronary syndrome (ACS). In the management of ACS, the recommended maintenance dose of ticagrelor is 90 mg twice daily during the first year after an ACS event.
Now, after the first year, patients with a history of heart attack can continue to be treated with ticagrelor at 60 mg twice daily, which should be taken with a daily maintenance dose of aspirin at 75 mg to 150 mg.
Trial results
The latest EU approval of ticagrelor was based on results from the PEGASUS TIMI-54 study. This trial, which involved more than 21,000 patients, was presented at the American College of Cardiology Congress in March 2015 and simultaneously published in NEJM.
Investigators compared ticagrelor (at 60 mg or 90 mg) plus low-dose aspirin to placebo plus low-dose aspirin in patients who had experienced a heart attack 1 to 3 years prior to study enrollment.
The primary efficacy endpoint was a composite of cardiovascular death, myocardial infarction, or stroke.
The investigators found that patients in either ticagrelor arm were significantly less likely to achieve this endpoint than placebo-treated patients.
At 3 years, the proportion of patients meeting the primary endpoint was 7.85% in the 90 mg group, 7.77% in the 60 mg group, and 9.04% in the placebo group (P=0.008 for 90 mg vs placebo and P=0.004 for 60 mg vs placebo).
Patients receiving ticagrelor also had a significantly higher incidence of major bleeding and dyspnea. The rate of TIMI major bleeding was 2.60% in the 90 mg group, 2.30% in the 60 mg group, and 1.06% in the placebo group (P<0.001 for each ticagrelor dose vs placebo).
The rate of dyspnea was 18.93% in the 90 mg group, 15.84% in 60 mg group, and 6.38% in the placebo group (P<0.001 for both comparisons). The rate of dyspnea leading to treatment discontinuation was 6.5%, 4.55%, and 0.79%, respectively (P<0.001 for both comparisons).
Ticagrelor has been approved in more than 100 countries. The drug is under development by AstraZeneca.
Drug granted breakthrough designation for AML
The US Food and Drug Administration (FDA) has granted breakthrough therapy designation for midostaurin (PKC412) to treat acute myeloid leukemia (AML).
Midostaurin is a multi-targeted kinase inhibitor being developed for adults with newly diagnosed AML who are FLT3-positive, as detected by an FDA-approved test, and who are eligible to receive standard induction and consolidation chemotherapy.
Breakthrough therapy designation is intended to expedite the development and review of new medicines intended to treat serious or life-threatening conditions. The therapy must demonstrate substantial improvement over an available therapy on at least one clinically significant endpoint.
The designation includes all of the fast track program features, as well as more intensive FDA guidance on an efficient drug development program.
Phase 3 trial
The breakthrough designation for midostaurin is primarily based on the results of the phase 3 RATIFY trial, which were presented at the 2015 ASH Annual Meeting.
The trial included 717 patients with newly diagnosed, FLT3-positive AML who were younger than 60 at enrollment. All of the patients received standard induction and consolidation therapy. Roughly half also received midostaurin (n=360), while the other half received placebo (n=357).
Patients who received midostaurin experienced a significant improvement in overall survival (hazard ratio=0.77, P=0.0074). The median overall survival was 74.4 months in the midostaurin arm and 25.6 months in the placebo arm.
The median event-free survival was 8 months in the midostaurin arm and 3.6 months in the placebo arm (P=0.0032). The 5-year event-free survival was 27.5% for midostaurin and 19.3% for placebo.
There was no significant difference between the treatment arms with regard to most non-hematologic grade 3/4 adverse events. The exception was rash/desquamation, which occurred in 13% of patients in the midostaurin arm and 8% of patients in the placebo arm (P=0.02).
Other grade 3/4 non-hematologic events occurring in 10% of patients or more included, in the midostaurin and placebo arms, respectively: febrile neutropenia (81%, 82%), infection (40%, 38%), diarrhea (15%, 16%), hypokalemia (13%, 17%), pain (13%, 13%), other infection (12%, 12%), ALT/SGPT (12%, 9%), and fatigue (9%, 11%).
There were 18 deaths (5%) in the midostaurin arm and 19 (5.3%) in the placebo arm during induction and consolidation.
Midostaurin development
Novartis has opened a Global Individual Patient Program (compassionate use program) and a US Expanded Treatment Protocol (ETP) to enable midostaurin access. Patients 18 years of age and older with newly diagnosed FLT3-mutated AML who are able to receive standard induction and consolidation therapy will be considered.
To help identify patients who may have a FLT3 mutation and potentially benefit from treatment with midostaurin, Novartis is collaborating with Invivoscribe Technologies, Inc. which is leading regulatory submissions for a companion diagnostic.
Midostaurin is also being investigated for the treatment of aggressive systemic mastocytosis/mast cell leukemia.
The US Food and Drug Administration (FDA) has granted breakthrough therapy designation for midostaurin (PKC412) to treat acute myeloid leukemia (AML).
Midostaurin is a multi-targeted kinase inhibitor being developed for adults with newly diagnosed AML who are FLT3-positive, as detected by an FDA-approved test, and who are eligible to receive standard induction and consolidation chemotherapy.
Breakthrough therapy designation is intended to expedite the development and review of new medicines intended to treat serious or life-threatening conditions. The therapy must demonstrate substantial improvement over an available therapy on at least one clinically significant endpoint.
The designation includes all of the fast track program features, as well as more intensive FDA guidance on an efficient drug development program.
Phase 3 trial
The breakthrough designation for midostaurin is primarily based on the results of the phase 3 RATIFY trial, which were presented at the 2015 ASH Annual Meeting.
The trial included 717 patients with newly diagnosed, FLT3-positive AML who were younger than 60 at enrollment. All of the patients received standard induction and consolidation therapy. Roughly half also received midostaurin (n=360), while the other half received placebo (n=357).
Patients who received midostaurin experienced a significant improvement in overall survival (hazard ratio=0.77, P=0.0074). The median overall survival was 74.4 months in the midostaurin arm and 25.6 months in the placebo arm.
The median event-free survival was 8 months in the midostaurin arm and 3.6 months in the placebo arm (P=0.0032). The 5-year event-free survival was 27.5% for midostaurin and 19.3% for placebo.
There was no significant difference between the treatment arms with regard to most non-hematologic grade 3/4 adverse events. The exception was rash/desquamation, which occurred in 13% of patients in the midostaurin arm and 8% of patients in the placebo arm (P=0.02).
Other grade 3/4 non-hematologic events occurring in 10% of patients or more included, in the midostaurin and placebo arms, respectively: febrile neutropenia (81%, 82%), infection (40%, 38%), diarrhea (15%, 16%), hypokalemia (13%, 17%), pain (13%, 13%), other infection (12%, 12%), ALT/SGPT (12%, 9%), and fatigue (9%, 11%).
There were 18 deaths (5%) in the midostaurin arm and 19 (5.3%) in the placebo arm during induction and consolidation.
Midostaurin development
Novartis has opened a Global Individual Patient Program (compassionate use program) and a US Expanded Treatment Protocol (ETP) to enable midostaurin access. Patients 18 years of age and older with newly diagnosed FLT3-mutated AML who are able to receive standard induction and consolidation therapy will be considered.
To help identify patients who may have a FLT3 mutation and potentially benefit from treatment with midostaurin, Novartis is collaborating with Invivoscribe Technologies, Inc. which is leading regulatory submissions for a companion diagnostic.
Midostaurin is also being investigated for the treatment of aggressive systemic mastocytosis/mast cell leukemia.
The US Food and Drug Administration (FDA) has granted breakthrough therapy designation for midostaurin (PKC412) to treat acute myeloid leukemia (AML).
Midostaurin is a multi-targeted kinase inhibitor being developed for adults with newly diagnosed AML who are FLT3-positive, as detected by an FDA-approved test, and who are eligible to receive standard induction and consolidation chemotherapy.
Breakthrough therapy designation is intended to expedite the development and review of new medicines intended to treat serious or life-threatening conditions. The therapy must demonstrate substantial improvement over an available therapy on at least one clinically significant endpoint.
The designation includes all of the fast track program features, as well as more intensive FDA guidance on an efficient drug development program.
Phase 3 trial
The breakthrough designation for midostaurin is primarily based on the results of the phase 3 RATIFY trial, which were presented at the 2015 ASH Annual Meeting.
The trial included 717 patients with newly diagnosed, FLT3-positive AML who were younger than 60 at enrollment. All of the patients received standard induction and consolidation therapy. Roughly half also received midostaurin (n=360), while the other half received placebo (n=357).
Patients who received midostaurin experienced a significant improvement in overall survival (hazard ratio=0.77, P=0.0074). The median overall survival was 74.4 months in the midostaurin arm and 25.6 months in the placebo arm.
The median event-free survival was 8 months in the midostaurin arm and 3.6 months in the placebo arm (P=0.0032). The 5-year event-free survival was 27.5% for midostaurin and 19.3% for placebo.
There was no significant difference between the treatment arms with regard to most non-hematologic grade 3/4 adverse events. The exception was rash/desquamation, which occurred in 13% of patients in the midostaurin arm and 8% of patients in the placebo arm (P=0.02).
Other grade 3/4 non-hematologic events occurring in 10% of patients or more included, in the midostaurin and placebo arms, respectively: febrile neutropenia (81%, 82%), infection (40%, 38%), diarrhea (15%, 16%), hypokalemia (13%, 17%), pain (13%, 13%), other infection (12%, 12%), ALT/SGPT (12%, 9%), and fatigue (9%, 11%).
There were 18 deaths (5%) in the midostaurin arm and 19 (5.3%) in the placebo arm during induction and consolidation.
Midostaurin development
Novartis has opened a Global Individual Patient Program (compassionate use program) and a US Expanded Treatment Protocol (ETP) to enable midostaurin access. Patients 18 years of age and older with newly diagnosed FLT3-mutated AML who are able to receive standard induction and consolidation therapy will be considered.
To help identify patients who may have a FLT3 mutation and potentially benefit from treatment with midostaurin, Novartis is collaborating with Invivoscribe Technologies, Inc. which is leading regulatory submissions for a companion diagnostic.
Midostaurin is also being investigated for the treatment of aggressive systemic mastocytosis/mast cell leukemia.
Health Canada approves ruxolitinib for PV
Image courtesy of AFIP
Health Canada has approved the JAK1/2 inhibitor ruxolitinib (Jakavi) for the control of hematocrit in adult patients with polycythemia vera (PV) that is resistant to or intolerant of a cytoreductive agent.
Ruxolitinib is the first targeted treatment approved to treat PV in Canada.
The approval is based on results of the phase 3 RESPONSE trial, which showed that ruxolitinib could provide hematocrit control without phlebotomy in patients with PV.
For RESPONSE, researchers compared ruxolitinib to best available therapy (BAT) for PV. The trial was sponsored by Incyte Corporation and Novartis Pharmaceuticals, the companies developing ruxolitinib.
The study’s primary endpoint was the proportion of patients who achieved hematocrit control and were not eligible for phlebotomy from weeks 8 through 32 (with no more than 1 instance of phlebotomy eligibility between randomization and week 8) and who saw a 35% or greater reduction in spleen volume from baseline, as assessed by imaging at week 32.
The primary endpoint was met by significantly more patients in the ruxolitinib arm than the BAT arm— 20.9% and 0.9%, respectively (P<0.0001).
Sixty percent of patients in the ruxolitinib arm achieved hematocrit control, as did 19.6% of patients in the BAT arm. The percentage of patients who had at least a 35% reduction in spleen volume was 38.2% in the ruxolitinib arm and 0.9% in the BAT arm.
The proportion of patients achieving a complete hematologic remission at week 32 was 23.6% in the ruxolitinib arm and 8.9% in the BAT arm (P=0.0028). The proportion of patients achieving a durable primary response at week 48 was 19.1% in the ruxolitinib arm and 0.9% in the BAT arm (P<0.0001).
At 80 weeks, the most common adverse events in the ruxolitinib arm were headache (22%), diarrhea (20%), pruritus (20%), and fatigue (17%). Grade 3 or 4 anemia and thrombocytopenia occurred in 2% and 6% of patients, respectively. Five percent of patients discontinued ruxolitinib due to adverse events.
Image courtesy of AFIP
Health Canada has approved the JAK1/2 inhibitor ruxolitinib (Jakavi) for the control of hematocrit in adult patients with polycythemia vera (PV) that is resistant to or intolerant of a cytoreductive agent.
Ruxolitinib is the first targeted treatment approved to treat PV in Canada.
The approval is based on results of the phase 3 RESPONSE trial, which showed that ruxolitinib could provide hematocrit control without phlebotomy in patients with PV.
For RESPONSE, researchers compared ruxolitinib to best available therapy (BAT) for PV. The trial was sponsored by Incyte Corporation and Novartis Pharmaceuticals, the companies developing ruxolitinib.
The study’s primary endpoint was the proportion of patients who achieved hematocrit control and were not eligible for phlebotomy from weeks 8 through 32 (with no more than 1 instance of phlebotomy eligibility between randomization and week 8) and who saw a 35% or greater reduction in spleen volume from baseline, as assessed by imaging at week 32.
The primary endpoint was met by significantly more patients in the ruxolitinib arm than the BAT arm— 20.9% and 0.9%, respectively (P<0.0001).
Sixty percent of patients in the ruxolitinib arm achieved hematocrit control, as did 19.6% of patients in the BAT arm. The percentage of patients who had at least a 35% reduction in spleen volume was 38.2% in the ruxolitinib arm and 0.9% in the BAT arm.
The proportion of patients achieving a complete hematologic remission at week 32 was 23.6% in the ruxolitinib arm and 8.9% in the BAT arm (P=0.0028). The proportion of patients achieving a durable primary response at week 48 was 19.1% in the ruxolitinib arm and 0.9% in the BAT arm (P<0.0001).
At 80 weeks, the most common adverse events in the ruxolitinib arm were headache (22%), diarrhea (20%), pruritus (20%), and fatigue (17%). Grade 3 or 4 anemia and thrombocytopenia occurred in 2% and 6% of patients, respectively. Five percent of patients discontinued ruxolitinib due to adverse events.
Image courtesy of AFIP
Health Canada has approved the JAK1/2 inhibitor ruxolitinib (Jakavi) for the control of hematocrit in adult patients with polycythemia vera (PV) that is resistant to or intolerant of a cytoreductive agent.
Ruxolitinib is the first targeted treatment approved to treat PV in Canada.
The approval is based on results of the phase 3 RESPONSE trial, which showed that ruxolitinib could provide hematocrit control without phlebotomy in patients with PV.
For RESPONSE, researchers compared ruxolitinib to best available therapy (BAT) for PV. The trial was sponsored by Incyte Corporation and Novartis Pharmaceuticals, the companies developing ruxolitinib.
The study’s primary endpoint was the proportion of patients who achieved hematocrit control and were not eligible for phlebotomy from weeks 8 through 32 (with no more than 1 instance of phlebotomy eligibility between randomization and week 8) and who saw a 35% or greater reduction in spleen volume from baseline, as assessed by imaging at week 32.
The primary endpoint was met by significantly more patients in the ruxolitinib arm than the BAT arm— 20.9% and 0.9%, respectively (P<0.0001).
Sixty percent of patients in the ruxolitinib arm achieved hematocrit control, as did 19.6% of patients in the BAT arm. The percentage of patients who had at least a 35% reduction in spleen volume was 38.2% in the ruxolitinib arm and 0.9% in the BAT arm.
The proportion of patients achieving a complete hematologic remission at week 32 was 23.6% in the ruxolitinib arm and 8.9% in the BAT arm (P=0.0028). The proportion of patients achieving a durable primary response at week 48 was 19.1% in the ruxolitinib arm and 0.9% in the BAT arm (P<0.0001).
At 80 weeks, the most common adverse events in the ruxolitinib arm were headache (22%), diarrhea (20%), pruritus (20%), and fatigue (17%). Grade 3 or 4 anemia and thrombocytopenia occurred in 2% and 6% of patients, respectively. Five percent of patients discontinued ruxolitinib due to adverse events.
Development of myelofibrosis drug on hold
The US Food and Drug Administration (FDA) has placed a full clinical hold on trials conducted under the investigational new drug application for pacritinib, a JAK2/FLT3 inhibitor being developed by CTI BioPharma for the treatment of myelofibrosis (MF).
The hold means all patients currently on pacritinib must stop taking the drug immediately, and no patients can be enrolled on a pacritinib trial or start pacritinib as initial or crossover treatment.
In addition, CTI BioPharma has withdrawn the new drug application for pacritinib while the company reviews data from the phase 3 PERSIST-2 trial.
The FDA’s decision to place a full clinical hold on pacritinib trials was due to interim results from PERSIST-2. The aim of this trial was to compare pacritinib to best available therapy in patients with thrombocytopenia and primary MF, post-polycythemia vera MF, or post-essential thrombocythemia MF.
The overall survival results from PERSIST-2 indicate that pacritinib had a detrimental effect on survival, which is consistent with results from the PERSIST-1 trial. The deaths in pacritinib-treated patients on PERSIST-2 include intracranial hemorrhage, cardiac failure, and cardiac arrest.
Based on these results, the FDA has made recommendations for CTI BioPharma that supersede the agency’s previous recommendations.
On February 4, 2016, the FDA placed a partial clinical hold on pacritinib trials and made related recommendations for CTI BioPharma, advising that the company modify trial protocols and take other actions in compliance with the partial clinical hold.
Now that pacritinib trials are on full clinical hold, the FDA is recommending that CTI BioPharma conduct dose exploration studies for pacritinib in patients with MF and submit final study reports and datasets for PERSIST-1 and PERSIST-2.
The FDA is also recommending that CTI BioPharma provide certain notifications, revise relevant statements in the related investigator’s brochure and informed consent documents, make certain modifications to protocols, and request a meeting with the FDA prior to submitting a response to the full clinical hold.
CTI BioPharma said all clinical investigators worldwide have been notified of the hold.
The US Food and Drug Administration (FDA) has placed a full clinical hold on trials conducted under the investigational new drug application for pacritinib, a JAK2/FLT3 inhibitor being developed by CTI BioPharma for the treatment of myelofibrosis (MF).
The hold means all patients currently on pacritinib must stop taking the drug immediately, and no patients can be enrolled on a pacritinib trial or start pacritinib as initial or crossover treatment.
In addition, CTI BioPharma has withdrawn the new drug application for pacritinib while the company reviews data from the phase 3 PERSIST-2 trial.
The FDA’s decision to place a full clinical hold on pacritinib trials was due to interim results from PERSIST-2. The aim of this trial was to compare pacritinib to best available therapy in patients with thrombocytopenia and primary MF, post-polycythemia vera MF, or post-essential thrombocythemia MF.
The overall survival results from PERSIST-2 indicate that pacritinib had a detrimental effect on survival, which is consistent with results from the PERSIST-1 trial. The deaths in pacritinib-treated patients on PERSIST-2 include intracranial hemorrhage, cardiac failure, and cardiac arrest.
Based on these results, the FDA has made recommendations for CTI BioPharma that supersede the agency’s previous recommendations.
On February 4, 2016, the FDA placed a partial clinical hold on pacritinib trials and made related recommendations for CTI BioPharma, advising that the company modify trial protocols and take other actions in compliance with the partial clinical hold.
Now that pacritinib trials are on full clinical hold, the FDA is recommending that CTI BioPharma conduct dose exploration studies for pacritinib in patients with MF and submit final study reports and datasets for PERSIST-1 and PERSIST-2.
The FDA is also recommending that CTI BioPharma provide certain notifications, revise relevant statements in the related investigator’s brochure and informed consent documents, make certain modifications to protocols, and request a meeting with the FDA prior to submitting a response to the full clinical hold.
CTI BioPharma said all clinical investigators worldwide have been notified of the hold.
The US Food and Drug Administration (FDA) has placed a full clinical hold on trials conducted under the investigational new drug application for pacritinib, a JAK2/FLT3 inhibitor being developed by CTI BioPharma for the treatment of myelofibrosis (MF).
The hold means all patients currently on pacritinib must stop taking the drug immediately, and no patients can be enrolled on a pacritinib trial or start pacritinib as initial or crossover treatment.
In addition, CTI BioPharma has withdrawn the new drug application for pacritinib while the company reviews data from the phase 3 PERSIST-2 trial.
The FDA’s decision to place a full clinical hold on pacritinib trials was due to interim results from PERSIST-2. The aim of this trial was to compare pacritinib to best available therapy in patients with thrombocytopenia and primary MF, post-polycythemia vera MF, or post-essential thrombocythemia MF.
The overall survival results from PERSIST-2 indicate that pacritinib had a detrimental effect on survival, which is consistent with results from the PERSIST-1 trial. The deaths in pacritinib-treated patients on PERSIST-2 include intracranial hemorrhage, cardiac failure, and cardiac arrest.
Based on these results, the FDA has made recommendations for CTI BioPharma that supersede the agency’s previous recommendations.
On February 4, 2016, the FDA placed a partial clinical hold on pacritinib trials and made related recommendations for CTI BioPharma, advising that the company modify trial protocols and take other actions in compliance with the partial clinical hold.
Now that pacritinib trials are on full clinical hold, the FDA is recommending that CTI BioPharma conduct dose exploration studies for pacritinib in patients with MF and submit final study reports and datasets for PERSIST-1 and PERSIST-2.
The FDA is also recommending that CTI BioPharma provide certain notifications, revise relevant statements in the related investigator’s brochure and informed consent documents, make certain modifications to protocols, and request a meeting with the FDA prior to submitting a response to the full clinical hold.
CTI BioPharma said all clinical investigators worldwide have been notified of the hold.
MF drug trials placed on partial clinical hold
The US Food and Drug Administration (FDA) has placed a partial clinical hold on trials conducted under the investigational new drug
(IND) application for pacritinib.
Pacritinib is a JAK2/FLT3 inhibitor being developed by CTI BioPharma for the treatment of myelofibrosis (MF).
The partial clinical hold impacts part of the clinical work currently being conducted under the pacritinib IND and will also affect planned clinical trials.
The FDA said the reasons for the partial clinical hold are excess mortality and other adverse events in pacritinib-treated patients (compared to the control arm) in the PERSIST-1 trial.
The excess mortality was most evident during the non-randomized crossover period following the initial 24 weeks of randomized treatment, during which patients in the control arm could switch to pacritinib treatment.
Under the partial clinical hold, investigators may not enroll new patients or start pacritinib as initial or crossover treatment, and patients not deriving benefit after 30 weeks of pacritinib treatment must stop using pacritinib.
In addition, the FDA has recommended that CTI BioPharma make certain modifications to protocols, provide certain notifications, revise relevant statements in the related investigator’s brochure and informed consent documents, and take certain other actions.
CTI BioPharma said it intends to implement the FDA’s recommendations, and all clinical investigators worldwide have been notified of the partial clinical hold.
Just before the FDA notified CTI BioPharma of the partial clinical hold, the company completed enrollment in the phase 3 PERSIST-2 trial.
In PERSIST-2, researchers are comparing the efficacy and safety of pacritinib and best available therapy in patients with thrombocytopenia and primary MF, post-polycythemia vera MF, or post-essential thrombocythemia MF.
Under the partial clinical hold, patients on this trial who are currently receiving pacritinib may continue to do so unless they are not deriving benefit after 30 weeks of pacritinib treatment, and crossover of patients from the control arm to the pacritinib arm will not be allowed.
The US Food and Drug Administration (FDA) has placed a partial clinical hold on trials conducted under the investigational new drug
(IND) application for pacritinib.
Pacritinib is a JAK2/FLT3 inhibitor being developed by CTI BioPharma for the treatment of myelofibrosis (MF).
The partial clinical hold impacts part of the clinical work currently being conducted under the pacritinib IND and will also affect planned clinical trials.
The FDA said the reasons for the partial clinical hold are excess mortality and other adverse events in pacritinib-treated patients (compared to the control arm) in the PERSIST-1 trial.
The excess mortality was most evident during the non-randomized crossover period following the initial 24 weeks of randomized treatment, during which patients in the control arm could switch to pacritinib treatment.
Under the partial clinical hold, investigators may not enroll new patients or start pacritinib as initial or crossover treatment, and patients not deriving benefit after 30 weeks of pacritinib treatment must stop using pacritinib.
In addition, the FDA has recommended that CTI BioPharma make certain modifications to protocols, provide certain notifications, revise relevant statements in the related investigator’s brochure and informed consent documents, and take certain other actions.
CTI BioPharma said it intends to implement the FDA’s recommendations, and all clinical investigators worldwide have been notified of the partial clinical hold.
Just before the FDA notified CTI BioPharma of the partial clinical hold, the company completed enrollment in the phase 3 PERSIST-2 trial.
In PERSIST-2, researchers are comparing the efficacy and safety of pacritinib and best available therapy in patients with thrombocytopenia and primary MF, post-polycythemia vera MF, or post-essential thrombocythemia MF.
Under the partial clinical hold, patients on this trial who are currently receiving pacritinib may continue to do so unless they are not deriving benefit after 30 weeks of pacritinib treatment, and crossover of patients from the control arm to the pacritinib arm will not be allowed.
The US Food and Drug Administration (FDA) has placed a partial clinical hold on trials conducted under the investigational new drug
(IND) application for pacritinib.
Pacritinib is a JAK2/FLT3 inhibitor being developed by CTI BioPharma for the treatment of myelofibrosis (MF).
The partial clinical hold impacts part of the clinical work currently being conducted under the pacritinib IND and will also affect planned clinical trials.
The FDA said the reasons for the partial clinical hold are excess mortality and other adverse events in pacritinib-treated patients (compared to the control arm) in the PERSIST-1 trial.
The excess mortality was most evident during the non-randomized crossover period following the initial 24 weeks of randomized treatment, during which patients in the control arm could switch to pacritinib treatment.
Under the partial clinical hold, investigators may not enroll new patients or start pacritinib as initial or crossover treatment, and patients not deriving benefit after 30 weeks of pacritinib treatment must stop using pacritinib.
In addition, the FDA has recommended that CTI BioPharma make certain modifications to protocols, provide certain notifications, revise relevant statements in the related investigator’s brochure and informed consent documents, and take certain other actions.
CTI BioPharma said it intends to implement the FDA’s recommendations, and all clinical investigators worldwide have been notified of the partial clinical hold.
Just before the FDA notified CTI BioPharma of the partial clinical hold, the company completed enrollment in the phase 3 PERSIST-2 trial.
In PERSIST-2, researchers are comparing the efficacy and safety of pacritinib and best available therapy in patients with thrombocytopenia and primary MF, post-polycythemia vera MF, or post-essential thrombocythemia MF.
Under the partial clinical hold, patients on this trial who are currently receiving pacritinib may continue to do so unless they are not deriving benefit after 30 weeks of pacritinib treatment, and crossover of patients from the control arm to the pacritinib arm will not be allowed.
EMA recommends therapy for bleeding disorder
The European Medicines Agency (EMA) has recommended marketing authorization for Coagadex to treat hereditary factor X deficiency, a rare bleeding disorder.
The active substance in Coagadex is coagulation factor X, a protein derived from human plasma.
Coagadex is intended to treat and prevent bleeding episodes and control bleeding during surgical procedures in patients with hereditary factor X deficiency.
If the European Commission follows the EMA’s recommendation, Coagadex will be the first specific replacement therapy approved in the European Union (EU) to treat patients with this disorder.
Current treatment for factor X deficiency in the EU includes replacement therapies that contain a mix of coagulation factors. These are associated with dosing problems and the risk of elevating other clotting factors, which may result in complications.
Due to the lack of specific treatment options for factor X deficiency, the EMA’s Committee for Medicinal Products for Human Use (CHMP) decided to speed up the evaluation of Coagadex and recommended marketing authorization following an accelerated assessment. This is one of the agency’s tools to speed up patient access to new medicines if they address an unmet medical need.
The CHMP based its recommendation for authorization of Coagadex on the results of 2 non-randomized studies.
The first trial included 16 patients who received Coagadex for pharmacokinetic evaluation, on-demand treatment and control of bleeding episodes, and/or perioperative management of minor surgical or dental procedures.
Coagadex was used to treat 208 bleeding episodes, and 187 of these episodes (in 15 patients) were evaluated for efficacy. Ninety-eight episodes were major bleeds, 88 were minor bleeds, and 1 was not assessed.
One hundred and fifty-five bleeds (83%) were treated with a single infusion of Coagadex, 28 (15%) were treated with 2 infusions, 3 bleeds (2%) required 3 infusions, and 1 bleed (0.5%) required 4 infusions. Four bleeding episodes in 2 patients were considered treatment failures.
The mean dose of Coagadex per infusion was 25.4 IU/kg, and the mean total dose was 30.4 IU/kg. The recommended dose of 25 IU/kg to treat a bleed was maintained for 14 of the 16 patients. The other 2 patients used doses of up to 30 IU/kg and 33 IU/kg.
There were 176 adverse events in this trial, but only 6 events in 2 patients were considered possibly related to Coagadex. This included 2 reports of infusion site erythema in 1 patient, 2 reports of fatigue in 1 patient, 1 report of back pain, and 1 report of infusion site pain.
The second trial included patients who received Coagadex for perioperative management. Five patients received Coagadex for 7 surgical procedures.
For major surgeries, a median of 13 infusions (range, 2-15) and a median cumulative dose of 181 IU/kg (range, 45-210 IU/kg) were required to maintain hemostasis.
For minor surgeries, a median of 2.5 infusions (range, 1-4) and a median cumulative dose of 89 IU/kg (range, 51-127 IU/kg) were required to maintain hemostasis.
There were no adverse events related to Coagadex in this trial.
The company developing Coagadex, Bio Products Laboratory, received scientific advice on the design of the trials from the CHMP. Scientific advice is one of the agency’s main tools to facilitate and stimulate research and development within the EU.
Because factor X deficiency is rare, Coagadex was designated as an orphan medicine by the EMA’s Committee for Orphan Medicinal Products. Orphan designation gives pharmaceutical companies access to incentives that encourage the development of medicines for patients with rare diseases.
The CHMP’s recommendation to approve Coagadex for use in the EU is an intermediary step on Coagadex’s path to patient access. The CHMP’s opinion will now be sent to the European Commission for the adoption of a decision on an EU-wide marketing authorization.
Once a marketing authorization has been granted, decisions about price and reimbursement will take place at the level of each member state, taking into account the potential role/use of this medicine in the context of the national health system of that country.
The European Medicines Agency (EMA) has recommended marketing authorization for Coagadex to treat hereditary factor X deficiency, a rare bleeding disorder.
The active substance in Coagadex is coagulation factor X, a protein derived from human plasma.
Coagadex is intended to treat and prevent bleeding episodes and control bleeding during surgical procedures in patients with hereditary factor X deficiency.
If the European Commission follows the EMA’s recommendation, Coagadex will be the first specific replacement therapy approved in the European Union (EU) to treat patients with this disorder.
Current treatment for factor X deficiency in the EU includes replacement therapies that contain a mix of coagulation factors. These are associated with dosing problems and the risk of elevating other clotting factors, which may result in complications.
Due to the lack of specific treatment options for factor X deficiency, the EMA’s Committee for Medicinal Products for Human Use (CHMP) decided to speed up the evaluation of Coagadex and recommended marketing authorization following an accelerated assessment. This is one of the agency’s tools to speed up patient access to new medicines if they address an unmet medical need.
The CHMP based its recommendation for authorization of Coagadex on the results of 2 non-randomized studies.
The first trial included 16 patients who received Coagadex for pharmacokinetic evaluation, on-demand treatment and control of bleeding episodes, and/or perioperative management of minor surgical or dental procedures.
Coagadex was used to treat 208 bleeding episodes, and 187 of these episodes (in 15 patients) were evaluated for efficacy. Ninety-eight episodes were major bleeds, 88 were minor bleeds, and 1 was not assessed.
One hundred and fifty-five bleeds (83%) were treated with a single infusion of Coagadex, 28 (15%) were treated with 2 infusions, 3 bleeds (2%) required 3 infusions, and 1 bleed (0.5%) required 4 infusions. Four bleeding episodes in 2 patients were considered treatment failures.
The mean dose of Coagadex per infusion was 25.4 IU/kg, and the mean total dose was 30.4 IU/kg. The recommended dose of 25 IU/kg to treat a bleed was maintained for 14 of the 16 patients. The other 2 patients used doses of up to 30 IU/kg and 33 IU/kg.
There were 176 adverse events in this trial, but only 6 events in 2 patients were considered possibly related to Coagadex. This included 2 reports of infusion site erythema in 1 patient, 2 reports of fatigue in 1 patient, 1 report of back pain, and 1 report of infusion site pain.
The second trial included patients who received Coagadex for perioperative management. Five patients received Coagadex for 7 surgical procedures.
For major surgeries, a median of 13 infusions (range, 2-15) and a median cumulative dose of 181 IU/kg (range, 45-210 IU/kg) were required to maintain hemostasis.
For minor surgeries, a median of 2.5 infusions (range, 1-4) and a median cumulative dose of 89 IU/kg (range, 51-127 IU/kg) were required to maintain hemostasis.
There were no adverse events related to Coagadex in this trial.
The company developing Coagadex, Bio Products Laboratory, received scientific advice on the design of the trials from the CHMP. Scientific advice is one of the agency’s main tools to facilitate and stimulate research and development within the EU.
Because factor X deficiency is rare, Coagadex was designated as an orphan medicine by the EMA’s Committee for Orphan Medicinal Products. Orphan designation gives pharmaceutical companies access to incentives that encourage the development of medicines for patients with rare diseases.
The CHMP’s recommendation to approve Coagadex for use in the EU is an intermediary step on Coagadex’s path to patient access. The CHMP’s opinion will now be sent to the European Commission for the adoption of a decision on an EU-wide marketing authorization.
Once a marketing authorization has been granted, decisions about price and reimbursement will take place at the level of each member state, taking into account the potential role/use of this medicine in the context of the national health system of that country.
The European Medicines Agency (EMA) has recommended marketing authorization for Coagadex to treat hereditary factor X deficiency, a rare bleeding disorder.
The active substance in Coagadex is coagulation factor X, a protein derived from human plasma.
Coagadex is intended to treat and prevent bleeding episodes and control bleeding during surgical procedures in patients with hereditary factor X deficiency.
If the European Commission follows the EMA’s recommendation, Coagadex will be the first specific replacement therapy approved in the European Union (EU) to treat patients with this disorder.
Current treatment for factor X deficiency in the EU includes replacement therapies that contain a mix of coagulation factors. These are associated with dosing problems and the risk of elevating other clotting factors, which may result in complications.
Due to the lack of specific treatment options for factor X deficiency, the EMA’s Committee for Medicinal Products for Human Use (CHMP) decided to speed up the evaluation of Coagadex and recommended marketing authorization following an accelerated assessment. This is one of the agency’s tools to speed up patient access to new medicines if they address an unmet medical need.
The CHMP based its recommendation for authorization of Coagadex on the results of 2 non-randomized studies.
The first trial included 16 patients who received Coagadex for pharmacokinetic evaluation, on-demand treatment and control of bleeding episodes, and/or perioperative management of minor surgical or dental procedures.
Coagadex was used to treat 208 bleeding episodes, and 187 of these episodes (in 15 patients) were evaluated for efficacy. Ninety-eight episodes were major bleeds, 88 were minor bleeds, and 1 was not assessed.
One hundred and fifty-five bleeds (83%) were treated with a single infusion of Coagadex, 28 (15%) were treated with 2 infusions, 3 bleeds (2%) required 3 infusions, and 1 bleed (0.5%) required 4 infusions. Four bleeding episodes in 2 patients were considered treatment failures.
The mean dose of Coagadex per infusion was 25.4 IU/kg, and the mean total dose was 30.4 IU/kg. The recommended dose of 25 IU/kg to treat a bleed was maintained for 14 of the 16 patients. The other 2 patients used doses of up to 30 IU/kg and 33 IU/kg.
There were 176 adverse events in this trial, but only 6 events in 2 patients were considered possibly related to Coagadex. This included 2 reports of infusion site erythema in 1 patient, 2 reports of fatigue in 1 patient, 1 report of back pain, and 1 report of infusion site pain.
The second trial included patients who received Coagadex for perioperative management. Five patients received Coagadex for 7 surgical procedures.
For major surgeries, a median of 13 infusions (range, 2-15) and a median cumulative dose of 181 IU/kg (range, 45-210 IU/kg) were required to maintain hemostasis.
For minor surgeries, a median of 2.5 infusions (range, 1-4) and a median cumulative dose of 89 IU/kg (range, 51-127 IU/kg) were required to maintain hemostasis.
There were no adverse events related to Coagadex in this trial.
The company developing Coagadex, Bio Products Laboratory, received scientific advice on the design of the trials from the CHMP. Scientific advice is one of the agency’s main tools to facilitate and stimulate research and development within the EU.
Because factor X deficiency is rare, Coagadex was designated as an orphan medicine by the EMA’s Committee for Orphan Medicinal Products. Orphan designation gives pharmaceutical companies access to incentives that encourage the development of medicines for patients with rare diseases.
The CHMP’s recommendation to approve Coagadex for use in the EU is an intermediary step on Coagadex’s path to patient access. The CHMP’s opinion will now be sent to the European Commission for the adoption of a decision on an EU-wide marketing authorization.
Once a marketing authorization has been granted, decisions about price and reimbursement will take place at the level of each member state, taking into account the potential role/use of this medicine in the context of the national health system of that country.
Rivaroxaban trial results hold up, EMA says
The European Medicines Agency (EMA) has concluded that a defect discovered in a system used to measure international normalized ratios (INRs) in the ROCKET AF study does not change the study’s overall conclusions.
The Alere INRatio Monitor System (INRatio Monitor or INRatio2 Monitor and INRatio Test Strips) was recalled in December 2014 after it was found to produce falsely low test results.
A recent investigation by The BMJ suggested this defect may have impacted the results of ROCKET AF, in which researchers compared warfarin to rivaroxaban (Xarelto) in patients with non-valvular atrial fibrillation (NVAF).
However, the EMA said further analyses of the study suggest the issue with the INRatio system did not affect the overall safety or benefit-risk balance of rivaroxaban. So rivaroxaban can continue to be used as before, in line with the current prescribing information.
The ROCKET AF study was the main clinical trial underpinning the use of rivaroxaban in patients with NVAF.
The results suggested rivaroxaban was noninferior to warfarin for preventing stroke or systemic embolism in these patients. And there was no significant difference between the treatment arms with regard to major or nonmajor clinically relevant bleeding.
The INRatio system was used to measure INRs in study subjects taking warfarin. Because of the defect, there were concerns that the system could have provided lower INR values in some patients in the warfarin group.
The lower values could, in turn, have led investigators to give too high a dose in the warfarin group, increasing their risk of bleeding and therefore giving a false impression of the comparative safety of rivaroxaban.
So the EMA’s Committee for Medicinal Products for Human Use (CHMP) assessed further analyses of the ROCKET AF study data, taking into account the defect of the INRatio system.
The CHMP concluded that any incorrect measurements obtained with the defective system would have had a marginal effect on the study results, and the safety of rivaroxaban remains unchanged.
In addition, the CHMP said data from other large studies confirmed the comparative safety of rivaroxaban and showed similar rates of bleeding in their warfarin groups.
The CHMP therefore concluded that the benefit-risk balance of rivaroxaban in patients with NVAF remains unchanged.
The CHMP’s assessment report, which includes detailed information on the analyses performed, will be published on the EMA’s website soon.
The EMA started investigating this issue as soon as it was informed of the defect of the INRatio system by the marketing authorization holder of rivaroxaban, Bayer Pharma AG, in September 2015.
Bayer said that, although the INRatio system was recalled in December 2014, the company and its development partner, Janssen, did not become aware of the defect until September 2015.
The European Medicines Agency (EMA) has concluded that a defect discovered in a system used to measure international normalized ratios (INRs) in the ROCKET AF study does not change the study’s overall conclusions.
The Alere INRatio Monitor System (INRatio Monitor or INRatio2 Monitor and INRatio Test Strips) was recalled in December 2014 after it was found to produce falsely low test results.
A recent investigation by The BMJ suggested this defect may have impacted the results of ROCKET AF, in which researchers compared warfarin to rivaroxaban (Xarelto) in patients with non-valvular atrial fibrillation (NVAF).
However, the EMA said further analyses of the study suggest the issue with the INRatio system did not affect the overall safety or benefit-risk balance of rivaroxaban. So rivaroxaban can continue to be used as before, in line with the current prescribing information.
The ROCKET AF study was the main clinical trial underpinning the use of rivaroxaban in patients with NVAF.
The results suggested rivaroxaban was noninferior to warfarin for preventing stroke or systemic embolism in these patients. And there was no significant difference between the treatment arms with regard to major or nonmajor clinically relevant bleeding.
The INRatio system was used to measure INRs in study subjects taking warfarin. Because of the defect, there were concerns that the system could have provided lower INR values in some patients in the warfarin group.
The lower values could, in turn, have led investigators to give too high a dose in the warfarin group, increasing their risk of bleeding and therefore giving a false impression of the comparative safety of rivaroxaban.
So the EMA’s Committee for Medicinal Products for Human Use (CHMP) assessed further analyses of the ROCKET AF study data, taking into account the defect of the INRatio system.
The CHMP concluded that any incorrect measurements obtained with the defective system would have had a marginal effect on the study results, and the safety of rivaroxaban remains unchanged.
In addition, the CHMP said data from other large studies confirmed the comparative safety of rivaroxaban and showed similar rates of bleeding in their warfarin groups.
The CHMP therefore concluded that the benefit-risk balance of rivaroxaban in patients with NVAF remains unchanged.
The CHMP’s assessment report, which includes detailed information on the analyses performed, will be published on the EMA’s website soon.
The EMA started investigating this issue as soon as it was informed of the defect of the INRatio system by the marketing authorization holder of rivaroxaban, Bayer Pharma AG, in September 2015.
Bayer said that, although the INRatio system was recalled in December 2014, the company and its development partner, Janssen, did not become aware of the defect until September 2015.
The European Medicines Agency (EMA) has concluded that a defect discovered in a system used to measure international normalized ratios (INRs) in the ROCKET AF study does not change the study’s overall conclusions.
The Alere INRatio Monitor System (INRatio Monitor or INRatio2 Monitor and INRatio Test Strips) was recalled in December 2014 after it was found to produce falsely low test results.
A recent investigation by The BMJ suggested this defect may have impacted the results of ROCKET AF, in which researchers compared warfarin to rivaroxaban (Xarelto) in patients with non-valvular atrial fibrillation (NVAF).
However, the EMA said further analyses of the study suggest the issue with the INRatio system did not affect the overall safety or benefit-risk balance of rivaroxaban. So rivaroxaban can continue to be used as before, in line with the current prescribing information.
The ROCKET AF study was the main clinical trial underpinning the use of rivaroxaban in patients with NVAF.
The results suggested rivaroxaban was noninferior to warfarin for preventing stroke or systemic embolism in these patients. And there was no significant difference between the treatment arms with regard to major or nonmajor clinically relevant bleeding.
The INRatio system was used to measure INRs in study subjects taking warfarin. Because of the defect, there were concerns that the system could have provided lower INR values in some patients in the warfarin group.
The lower values could, in turn, have led investigators to give too high a dose in the warfarin group, increasing their risk of bleeding and therefore giving a false impression of the comparative safety of rivaroxaban.
So the EMA’s Committee for Medicinal Products for Human Use (CHMP) assessed further analyses of the ROCKET AF study data, taking into account the defect of the INRatio system.
The CHMP concluded that any incorrect measurements obtained with the defective system would have had a marginal effect on the study results, and the safety of rivaroxaban remains unchanged.
In addition, the CHMP said data from other large studies confirmed the comparative safety of rivaroxaban and showed similar rates of bleeding in their warfarin groups.
The CHMP therefore concluded that the benefit-risk balance of rivaroxaban in patients with NVAF remains unchanged.
The CHMP’s assessment report, which includes detailed information on the analyses performed, will be published on the EMA’s website soon.
The EMA started investigating this issue as soon as it was informed of the defect of the INRatio system by the marketing authorization holder of rivaroxaban, Bayer Pharma AG, in September 2015.
Bayer said that, although the INRatio system was recalled in December 2014, the company and its development partner, Janssen, did not become aware of the defect until September 2015.