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LOS ANGELES – No new safety signals have emerged in multiple sclerosis patients treated with ocrelizumab, according to ongoing follow-up and postmarketing surveillance.
As of September 2017, patients with relapsing or primary progressive MS who were part of the pivotal OPERA I and II and ORATORIO trials – including phases 2 and 3 and open-label extensions – as well as an all-exposure population that included patients from prior studies, had nearly 9,500 patient-years of exposure to ocrelizumab (Ocrevus), a humanized anti-CD20 monoclonal antibody. The all-exposure population contributed about 1,500 of those patient-years, Stephen Hauser, MD, reported at the annual meeting of the American Academy of Neurology.
Postmarketing experience in approximately 37,000 treated patients with an additional 14,000 patient-years shows a fatality rate of 0.28/100 patient-years (49 fatalities) as of March 2018, he said.
“If one compares this to at least two reports of epidemiologic mortality estimates in MS, this is in line with – and in fact a little bit lower than – those estimates that range between 0.37 and 0.9, compared with 0.28,” he said. “So ... the updated safety profile in this all-exposure ocrelizumab population was generally consistent with what was seen during the controlled treatment period, and rates of serious infections fluctuated over time without any sustained increase.”
Only one serious opportunistic infection (Pasteurella) occurred in the controlled trials, and three more (two varicella zoster, one herpes simplex) occurred during open-marketing experience.
The rate of malignancies has been very encouraging, as well, as it appears to continue to align with population expectations, Dr. Hauser said.
Trial participants received 600-mg doses intravenously every 24 weeks in all three trials; in OPERA I/II, they received 96 weeks of treatment with the first dose given as two 300-mg infusions split by 14 days, and, in ORATORIO, they received at least 120 weeks of treatment with all doses split, Dr. Hauser said.
In the phase 2 study, they received split doses of 600-mg or 2,000-mg infusions through week 24; then through week 96, they received either 600-mg or 1,000-mg doses; those receiving 600 mg included those who started at that dose and those who received placebo or interferon beta-1a 30 mcg, and those receiving 1,000 mg were those who started on ocrelizumab at 2,000 mg.
The comparators were placebo in the ORATORIO and phase 2 trials, and interferon beta-1a given at a dose of 44 mcg subcutaneously three times weekly (OPERA I and II) or 30 mcg intramuscularly each week in the phase 2 trial.
All patients were offered enrollment into open-label extension studies, and “there was rather massive interest in joining the open-label extension and continuing open-label extension in both trials,” he said.
“And earlier here at the AAN [meeting] we presented the clinical efficacy data from the open-label extension, now 2 years completed – so 4 years from onset of the study – in patients who received ocrelizumab continuously for [relapsing-remitting] MS during that time period, or who switched from three-times-weekly interferon beta-1a to ocrelizumab ... and the data continue to show the positive outcomes reported in the original trials,” he added.
Further, follow-up data on MRI outcomes from the open-label extensions demonstrate that the effects on focal disease activity and on progression persists and is durable with ongoing treatment, he noted.
“In conclusion, there is no pattern of serious infections or malignancies that has emerged thus far with increased exposure, but obviously long-term follow-up and postmarketing requirement studies are needed to monitor long-term patient safety and rare events that couldn’t be captured here,” he said.
This study was sponsored by F. Hoffmann-La Roche. Dr. Hauser has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with Symbiotix, Annexon Biosciences, Bionure, Molecular Stethoscope, and for serving on the Board of Directors of Neurona Therapeutics.
SOURCE: Hauser S et al. Neurology. 2018 Apr 9;(15 Suppl.):S36.001.
LOS ANGELES – No new safety signals have emerged in multiple sclerosis patients treated with ocrelizumab, according to ongoing follow-up and postmarketing surveillance.
As of September 2017, patients with relapsing or primary progressive MS who were part of the pivotal OPERA I and II and ORATORIO trials – including phases 2 and 3 and open-label extensions – as well as an all-exposure population that included patients from prior studies, had nearly 9,500 patient-years of exposure to ocrelizumab (Ocrevus), a humanized anti-CD20 monoclonal antibody. The all-exposure population contributed about 1,500 of those patient-years, Stephen Hauser, MD, reported at the annual meeting of the American Academy of Neurology.
Postmarketing experience in approximately 37,000 treated patients with an additional 14,000 patient-years shows a fatality rate of 0.28/100 patient-years (49 fatalities) as of March 2018, he said.
“If one compares this to at least two reports of epidemiologic mortality estimates in MS, this is in line with – and in fact a little bit lower than – those estimates that range between 0.37 and 0.9, compared with 0.28,” he said. “So ... the updated safety profile in this all-exposure ocrelizumab population was generally consistent with what was seen during the controlled treatment period, and rates of serious infections fluctuated over time without any sustained increase.”
Only one serious opportunistic infection (Pasteurella) occurred in the controlled trials, and three more (two varicella zoster, one herpes simplex) occurred during open-marketing experience.
The rate of malignancies has been very encouraging, as well, as it appears to continue to align with population expectations, Dr. Hauser said.
Trial participants received 600-mg doses intravenously every 24 weeks in all three trials; in OPERA I/II, they received 96 weeks of treatment with the first dose given as two 300-mg infusions split by 14 days, and, in ORATORIO, they received at least 120 weeks of treatment with all doses split, Dr. Hauser said.
In the phase 2 study, they received split doses of 600-mg or 2,000-mg infusions through week 24; then through week 96, they received either 600-mg or 1,000-mg doses; those receiving 600 mg included those who started at that dose and those who received placebo or interferon beta-1a 30 mcg, and those receiving 1,000 mg were those who started on ocrelizumab at 2,000 mg.
The comparators were placebo in the ORATORIO and phase 2 trials, and interferon beta-1a given at a dose of 44 mcg subcutaneously three times weekly (OPERA I and II) or 30 mcg intramuscularly each week in the phase 2 trial.
All patients were offered enrollment into open-label extension studies, and “there was rather massive interest in joining the open-label extension and continuing open-label extension in both trials,” he said.
“And earlier here at the AAN [meeting] we presented the clinical efficacy data from the open-label extension, now 2 years completed – so 4 years from onset of the study – in patients who received ocrelizumab continuously for [relapsing-remitting] MS during that time period, or who switched from three-times-weekly interferon beta-1a to ocrelizumab ... and the data continue to show the positive outcomes reported in the original trials,” he added.
Further, follow-up data on MRI outcomes from the open-label extensions demonstrate that the effects on focal disease activity and on progression persists and is durable with ongoing treatment, he noted.
“In conclusion, there is no pattern of serious infections or malignancies that has emerged thus far with increased exposure, but obviously long-term follow-up and postmarketing requirement studies are needed to monitor long-term patient safety and rare events that couldn’t be captured here,” he said.
This study was sponsored by F. Hoffmann-La Roche. Dr. Hauser has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with Symbiotix, Annexon Biosciences, Bionure, Molecular Stethoscope, and for serving on the Board of Directors of Neurona Therapeutics.
SOURCE: Hauser S et al. Neurology. 2018 Apr 9;(15 Suppl.):S36.001.
LOS ANGELES – No new safety signals have emerged in multiple sclerosis patients treated with ocrelizumab, according to ongoing follow-up and postmarketing surveillance.
As of September 2017, patients with relapsing or primary progressive MS who were part of the pivotal OPERA I and II and ORATORIO trials – including phases 2 and 3 and open-label extensions – as well as an all-exposure population that included patients from prior studies, had nearly 9,500 patient-years of exposure to ocrelizumab (Ocrevus), a humanized anti-CD20 monoclonal antibody. The all-exposure population contributed about 1,500 of those patient-years, Stephen Hauser, MD, reported at the annual meeting of the American Academy of Neurology.
Postmarketing experience in approximately 37,000 treated patients with an additional 14,000 patient-years shows a fatality rate of 0.28/100 patient-years (49 fatalities) as of March 2018, he said.
“If one compares this to at least two reports of epidemiologic mortality estimates in MS, this is in line with – and in fact a little bit lower than – those estimates that range between 0.37 and 0.9, compared with 0.28,” he said. “So ... the updated safety profile in this all-exposure ocrelizumab population was generally consistent with what was seen during the controlled treatment period, and rates of serious infections fluctuated over time without any sustained increase.”
Only one serious opportunistic infection (Pasteurella) occurred in the controlled trials, and three more (two varicella zoster, one herpes simplex) occurred during open-marketing experience.
The rate of malignancies has been very encouraging, as well, as it appears to continue to align with population expectations, Dr. Hauser said.
Trial participants received 600-mg doses intravenously every 24 weeks in all three trials; in OPERA I/II, they received 96 weeks of treatment with the first dose given as two 300-mg infusions split by 14 days, and, in ORATORIO, they received at least 120 weeks of treatment with all doses split, Dr. Hauser said.
In the phase 2 study, they received split doses of 600-mg or 2,000-mg infusions through week 24; then through week 96, they received either 600-mg or 1,000-mg doses; those receiving 600 mg included those who started at that dose and those who received placebo or interferon beta-1a 30 mcg, and those receiving 1,000 mg were those who started on ocrelizumab at 2,000 mg.
The comparators were placebo in the ORATORIO and phase 2 trials, and interferon beta-1a given at a dose of 44 mcg subcutaneously three times weekly (OPERA I and II) or 30 mcg intramuscularly each week in the phase 2 trial.
All patients were offered enrollment into open-label extension studies, and “there was rather massive interest in joining the open-label extension and continuing open-label extension in both trials,” he said.
“And earlier here at the AAN [meeting] we presented the clinical efficacy data from the open-label extension, now 2 years completed – so 4 years from onset of the study – in patients who received ocrelizumab continuously for [relapsing-remitting] MS during that time period, or who switched from three-times-weekly interferon beta-1a to ocrelizumab ... and the data continue to show the positive outcomes reported in the original trials,” he added.
Further, follow-up data on MRI outcomes from the open-label extensions demonstrate that the effects on focal disease activity and on progression persists and is durable with ongoing treatment, he noted.
“In conclusion, there is no pattern of serious infections or malignancies that has emerged thus far with increased exposure, but obviously long-term follow-up and postmarketing requirement studies are needed to monitor long-term patient safety and rare events that couldn’t be captured here,” he said.
This study was sponsored by F. Hoffmann-La Roche. Dr. Hauser has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with Symbiotix, Annexon Biosciences, Bionure, Molecular Stethoscope, and for serving on the Board of Directors of Neurona Therapeutics.
SOURCE: Hauser S et al. Neurology. 2018 Apr 9;(15 Suppl.):S36.001.
REPORTING FROM AAN 2018
Key clinical point: Follow-up and postmarketing surveillance show no new safety signals with ocrelizumab.
Major finding: The fatality rate was 0.28/100 patient-years as of March 2018.
Study details: Follow-up of patients with nearly 9,500 patient-years of experience with ocrelizumab and postmarketing surveillance in patients with more than 14,000 patient-years of experience.
Disclosures: This study was sponsored by F. Hoffmann-La Roche. Dr. Hauser has received personal compensation for consulting, serving on a scientific advisory board, speaking, or other activities with Symbiotix, Annexon Biosciences, Bionure, Molecular Stethoscope, and for serving on the board of directors of Neurona Therapeutics.
Source: Hauser S et al. Neurology. 2018 Apr 9;(15 Suppl.):S36.001.