NCT05704361 A Study to Investigate the Safety, Tolerability, and Processing by the Body of Intravenous and Subcutaneous RO7121932 Administration in Participants With Multiple Sclerosis

Eligibility & Interventions

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 119 participants in total. It began in 2021-08-11 with a primary completion date of 2027-07-08.

Brief Summary

The primary purpose of the study is to evaluate the safety and tolerability of a single-ascending intravenous (IV) dose (Part 1), a single-ascending subcutaneous (SC) dose (Part 2), and multiple ascending SC doses (Part 3), and multiple-ascending SC doses following a single IV dose (Part 4) of RO7121932 in participants with multiple sclerosis (MS). Only Parts 1 and 2 of the study will be conducted in the United States, whereas Parts 1, 2, 3, and 4 will be conducted in all other participating countries outside the United States.

Eligibility Criteria

Inclusion Criteria: * Expanded Disability Status Scale (EDSS) score ≤7.0 at Screening * Participants with relapsing multiple sclerosis (RMS) or progressive multiple sclerosis (PMS) who fulfil international panel criteria for diagnosis (McDonald 2017 criteria) * Participants not treated with any approved MS treatment at Screening and not planning to start on any MS therapy during the study (including follow-up) * Biological male and female participants * Female participants must practice abstinence or otherwise use contraception Exclusion Criteria: * Evidence of clinical disease activity as defined by any clinical relapse within 3 months prior to screening, or by \>1 clinical relapse within 12 months prior to screening * Evidence of brain magnetic resonance imaging (MRI) activity as defined by the presence of ≥ 1 Gadolinium (Gd)-enhancing T1 lesion in the screening MRI scan or by ≥ 4 new or enlarging T2 lesions in the screening scan as compared to a reference scan * Participants who have active progressive multifocal leukoencephalopathy (PML), have had confirmed PML, or have a high degree of suspicion for PML * Known presence of other neurological disorders that may mimic MS including but not limited to: neuromyelitis optica spectrum disease, Lyme disease, untreated Vitamin B12 deficiency, neurosarcoidosis, cerebrovascular disorders, and untreated hypothyroidism * Known active or uncontrolled bacterial, viral, fungal, mycobacterial infection or other infection, excluding fungal infection of nail beds, including participants exhibiting symptoms consistent with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) within 6 weeks prior to Day 1 * Participants with a current diagnosis of epilepsy * Clinically significant cardiac, metabolic, hematologic, hepatic, immunologic, urologic, endocrinologic, neurologic, pulmonary, psychiatric, dermatologic, allergic, renal, gastrointestinal or other major diseases * History of cancer, including hematologic malignancy and solid tumors, within 10 years of screening. Basal or squamous cell carcinoma of the skin that has been excised and is considered cured and in situ carcinoma of the cervix treated with apparent success by curative therapy \>1 year prior to screening is not exclusionary * History of inflammatory bowel disease or other clinically significant gastrointestinal disorders * Any concomitant disease that may require treatment with systemic corticosteroids or immunosuppressants during course of the study * History of currently active primary or secondary (non-drug-related) immunodeficiency * History of hypersensitivity to biologic agents or any of the excipients in the formulation * Only for cohorts where CSF samples are planned to be collected: Participants with a history of spinal cord compression, raised intra-cerebral pressure, clinically significant vertebral joint pathology or any other current abnormalities in the lumbar region which could prevent the lumbar puncture procedure. Prior/Concomitant Therapy: * Treatment with any approved MS treatment at Screening. Participants may become eligible after completion of a washout period prior to acquiring any screening laboratory tests but should not be withdrawn from therapies for the sole purpose of meeting eligibility for the trial * Previous treatment with RO7121932, alemtuzumab, cladribine, mitoxantrone, cyclophosphamide, total body irradiation, bone marrow transplantation, and hematopoietic stem cell transplantation. For the USA only, previous treatment with daclizumab * Previous treatment with anti-CD20 B-cell-depleting therapies (e.g., rituximab, ocrelizumab, or ofatumumab) * \<12 months prior to acquiring any screening laboratory tests, * ≥12 months prior to acquiring any screening laboratory tests, if B-cells are outside the normal range, or not back to individual baseline ± 20% (if data are available), * If discontinuation of a prior B-cell depletion therapy was motivated by safety reasons * Current or prior treatment with natalizumab (if \<24 months prior to acquiring any screening laboratory tests) Prior/Concurrent Clinical Study Experience: \- Participation in an investigational drug medicinal product or medical device study within 30 days before Screening or within five times the pharmacodynamic (PD) or pharmacokinetic (PK) half-life (if known), whichever is longer Diagnostic Assessments: * Positive result on human immunodeficiency virus (HIV1) and HIV2, hepatitis C, or hepatitis B * Participants with SI or behavior within 6 months prior to Screening or participants who, in the Investigator's judgment, pose a suicidal or homicidal risk * Vaccination with a live or live-attenuated vaccine within 6 weeks prior to Day 1

Contact & Investigator

Frequently Asked Questions

Related Trials

Related Intelligence Guides

In-depth guides covering this condition's trials, eligibility, and what to expect.