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Safety results of administering ocrelizumab per a shorter infusion protocol in patients with primary progressive and
Timothy L Vollmer1, Jeffrey A Cohen2, Enrique Alvarez1
1Department of Neurology, Rocky Mountain Multiple Sclerosis Center at Anschutz Medical Campus, University of Colorado Denver, Denver, CO, USA.
Background:
Ocrelizumab is an approved MS treatment administered as two 300-mg intravenous infusions 2 weeks apart (Dose 1), each lasting approximately 2.5 hours, followed by single 600-mg infusions every 6 months lasting approximately 3.5 hours. Our objective was to evaluate shorter-duration ocrelizumab infusions in the Phase IIIb open-label SaROD study (NCT03606460).
Methods:
Eligible patients received ocrelizumab 600-mg Dose 2 or 3 infused over approximately 2 hours (Cohort 1) or ocrelizumab 300-mg Dose 1, Infusion 2 over approximately 1.5 hours (Cohort 2). The primary endpoint was the number and proportion of patients experiencing Grade 3-4 infusion-related reactions (IRRs) in Cohort 1. Secondary endpoints included Grade 1-4 IRRs in both cohorts and Grade 3-4 IRRs in Cohort 2.
Results:
Mean infusion times decreased by approximately 1.09 and 0.79 hours in Cohorts 1 and 2, respectively, compared with US prescribing information. IRRs, reported by 36% of 141 patients, were mild-to-moderate, with no observed Grade 3-4 IRRs. No IRR-related discontinuations occurred. No serious AEs, deaths, or new safety signals were observed.
Conclusion:
The IRR rate with ocrelizumab shorter-duration infusions was similar to that observed in the pivotal Phase III trials. Ocrelizumab can be infused over a shorter time without sacrificing patient safety.
Insights
Shorter ocrelizumab infusions for multiple sclerosis (MS) are safe and effective. The SaROD study found similar infusion-related reaction rates compared to standard infusions, allowing for reduced administration times.
Area of Science:
- Neurology
- Immunology
- Pharmacology
Background:
- Ocrelizumab is an approved treatment for multiple sclerosis (MS).
- Current administration involves lengthy infusions, impacting patient convenience.
- The SaROD study aimed to assess shorter infusion durations.
Purpose of the Study:
- To evaluate the safety and tolerability of shorter-duration ocrelizumab infusions.
- To compare infusion-related reaction (IRR) rates between standard and shortened infusion protocols.
- To assess the feasibility of reducing ocrelizumab infusion times.
Main Methods:
- Phase IIIb open-label SaROD study.
- Two cohorts received ocrelizumab infusions over reduced timeframes (approx. 2 hours or 1.5 hours).
- Primary endpoint: Grade 3-4 infusion-related reactions (IRRs) in Cohort 1; secondary endpoints included all grades of IRRs.
Main Results:
- Mean infusion times were reduced by approximately 1.09 hours (Cohort 1) and 0.79 hours (Cohort 2).
- Infusion-related reactions occurred in 36% of patients and were mild-to-moderate.
- No Grade 3-4 IRRs, discontinuations, serious adverse events, or new safety signals were observed.
Conclusions:
- Shorter-duration ocrelizumab infusions are associated with an acceptable safety profile.
- The rate of infusion-related reactions was comparable to pivotal Phase III trials.
- Reduced infusion times are feasible without compromising patient safety in MS treatment.
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