Impact of Annual Versus Biannual Infusions of Ocrelizumab in Patients With Active MS,After 2 Years of Initial Treatment, on Freedom From Radiological Disease Activity at Two Years: a Multicenter Randomized Controlled Non-inferiority Trial (WINDOCRE)

Multiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system and the leading cause of severe non-traumatic disability in young people, affecting 110,000 people in France. Ocrelizumab, a humanized anti-CD20 monoclonal antibody, has shown remarkable efficacy in Phase III trials on the inflammatory component of the disease, reducing the annualized relapse rate by 46% and the rate of new T2 lesions by 80% compared with interferon-β 1a.

The use of anti-CD20 agents, including ocrelizumab, is associated with an infectious risk that increases with duration of exposure, part of which is due to the development of hypo-gammaglobulinemia in relation to cumulative dose.

Several reports suggest a persistent effect of anti-CD20 drugs in MS, with no resumption of inflammatory activity after discontinuation:

• During the development of ocrelizumab, at the end of phase 2, after having received 3 or 4 semi-annual cycles of ocrelizumab, a safety period with a therapeutic window of 18 months was planned, before re-administration in the extension study. During this therapeutic window, the annualized relapse rate remained stable, and patients showed no radiological disease activity.
• Scandinavian observational studies of "off-label" use of anti-CD20 in MS provide real-life evidence of the absence of recovery of clinical and radiological activity after prolonged interruption of treatment.

After 2 years of treatment, and with disease activity under control, spacing administration intervals could reduce the risk of infection without reducing treatment efficacy. This would facilitate the decision to maintain highly active immunotherapy over the long term. In addition, this therapeutic de-escalation, by reducing the frequency of infusions and associated day hospitalizations, would help to reduce treatment management costs.

Our aim is to evaluate the non-inferiority of 12-monthly spacing of ocrelizumab infusions versus the conventional 6-monthly regimen, in a population of active MS patients over 18 years of age who have already received 4 or more semi-annual cycles of treatment for 2 years.

Study Overview

• Status: Recruiting
• Conditions: Multiple Sclerosis
• Intervention / Treatment: Drug: Ocrelizumab Injection [Ocrevus]; Drug: Ocrelizumab Injection [Ocrevus]

• Study Type: Interventional
• Enrollment (Estimated): 244
• Phase: Phase 3

Contacts and Locations

• Study Contact: Name: Dr BENSA; Phone Number: 0148036753; Email: cbensa@for.paris

Study Locations

• France
  • Paris, France, 75019
    • Recruiting
    • Fondation Adolphe de Rothschild
    • Contact: Dr BENSA; Phone Number: 0148036753; Email: cbensa@for.paris

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult; Older Adult
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Patient 18 years of age or older
2. Presenting for a 4th semi-annual cycle of ocrelizumab (minimum)
3. Requires follow-up MRI as part of treatment.
4. Initial indication for ocrelizumab according to the marketing authorization (active MS, RR or SP form)
5. Absence of relapse for at least 18 months (a relapse being defined as the appearance of new symptoms or worsening of existing symptoms, lasting more than 24 hours and outside a period of fever or an infectious episode; notified as a validated relapse by the neurologist in the patient's file, treated or not with boluses of Solu-Medrol).
6. EDSS between 0 and 6 inclusive
7. Having received informed information about the study and having signed a consent to participate in the study
8. French language proficiency
9. Affiliated or beneficiary of a social insurance scheme

Exclusion Criteria:

1. Clinical forms of primary progressive MS
2. Patients already receiving systematically spaced doses of ocrelizumab ≥ 9 months apart
3. Contraindication to continued treatment with ocrelizumab (hypersensitivity reaction, ongoing active infection, development of malignancy since previous injection, development of severe immune deficiency)
4. Planned pregnancy within 3 years
5. Contraindication to MRI
6. Contraindication to injection of contrast media
7. Subject with severe or uncontrolled symptoms of renal, hepatic, hematological, gastrointestinal, pulmonary, psychiatric or cardiac disease, or any uncontrolled intercurrent pathology.
8. Patient under legal protection
9. Patients of childbearing age who do not wish to use effective contraception
10. Pregnant or breast-feeding women

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Single

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: annual ocrelizumab infusions	Drug: Ocrelizumab Injection [Ocrevus]; Semestrial administration; Drug: Ocrelizumab Injection [Ocrevus]; Annual administration
Other: semestrial ocrelizumab infusions	Drug: Ocrelizumab Injection [Ocrevus]; Semestrial administration; Drug: Ocrelizumab Injection [Ocrevus]; Annual administration

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Absence of radiological disease activity at 2 years	Percentage of patients with no new or enlarged T2 lesion >3mm on cerebrospinal MRI at 24 months compared with inclusion MRI. MRI readings at inclusion and M24 will be performed by an independent radiologist blinded to the treatment arm.	Months24

Collaborators and Investigators

• Sponsor: Fondation Ophtalmologique Adolphe de Rothschild

Study record dates

Study Major Dates

• Study Start (Actual): November 9, 2023
• Primary Completion (Estimated): November 1, 2027
• Study Completion (Estimated): November 1, 2027

Study Registration Dates

• First Submitted: August 11, 2023
• First Submitted That Met QC Criteria: August 11, 2023
• First Posted (Actual): August 21, 2023

Study Record Updates

• Last Update Posted (Actual): November 28, 2023
• Last Update Submitted That Met QC Criteria: November 22, 2023
• Last Verified: November 1, 2023

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Nervous System Diseases; Immune System Diseases; Demyelinating Autoimmune Diseases, CNS; Autoimmune Diseases of the Nervous System; Demyelinating Diseases; Autoimmune Diseases; Multiple Sclerosis; Physiological Effects of Drugs; Immunologic Factors; Ocrelizumab
• Other Study ID Numbers: CBR_2022_13

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No
• product manufactured in and exported from the U.S.: No