ClinicalTrials.gg
Active, not recruitingNCT05123703Operetta 2Updated Jul 15, 2026Results posted

A Study to Evaluate Safety and Efficacy of Ocrelizumab in Comparison With Fingolimod in Children and Adolescents With Relapsing-remitting Multiple Sclerosis (RRMS)

A Phase 3 interventional study of Ocrelizumab and Ocrelizumab Placebo in Relapsing-remitting Multiple Sclerosis, sponsored by Hoffmann-La Roche. Active, not recruiting at 71 sites in 25 countries. Open to participants aged 10 Years to 17 Years. Per ClinicalTrials.gov, last updated 2026-07-15.

Sponsored by Hoffmann-La Roche · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
188
Allocation
Randomized
Ages
10 Years to 17 Years
Sex
All
01

Study summary

This double-blind, double-dummy study will evaluate the safety and efficacy of ocrelizumab compared with fingolimod in children and adolescents with RRMS aged between 10 and \< 18 years over a flexible duration. The double-blind period will last until after the last participant randomized has completed 24 weeks.

Read the detailed description

This Phase III randomized, double-blind, double-dummy, multicenter study will evaluate the safety and efficacy of ocrelizumab administered as intravenous (IV) infusion every 24 weeks (Q24W) compared with fingolimod taken orally (PO), once daily (QD), in children and adolescents with RRMS aged between 10 and \< 18 years. Participants will be randomized in a 1:1 ratio (ocrelizumab:fingolimod), globally. This study consists of a double-blind, double dummy period in which participants will be treated with either active ocrelizumab or active fingolimod for a flexible duration. Participants who complete the double-blind period will be offered the possibility to enter an optional open-label extension (OLE) treatment period of at least 144 weeks with ocrelizumab.

02

Conditions studied

  • Relapsing-remitting Multiple Sclerosis

Keywords

  • pediatric Multiple Sclerosis
  • pediatric MS
  • children MS
  • children Multiple Sclerosis
  • pediatric ocrelizumab
03

In context

Multiple Sclerosis, Relapsing-Remitting

618 studies on the registry are indexed under Multiple Sclerosis, Relapsing-Remitting; 82 are open to participants now.

This study's enrollment of 188 is above the median of 66 across 437 interventional studies indexed under Multiple Sclerosis, Relapsing-Remitting.

Browse Multiple Sclerosis, Relapsing-Remitting studies →

Lead sponsor

Hoffmann-La Roche is the lead sponsor of 2,101 studies on the registry; 87 are open to participants now.

Of its 330 completed or terminated interventional studies of FDA-regulated products, 248 (75%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
10 Years to 17 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • Body weight ≥ 25 kg
  • Diagnosis of RRMS in accordance with the International Pediatric Multiple Sclerosis Study Group (IPMSSG) criteria for pediatric multiple sclerosis (MS), Version 2012, or McDonald criteria 2017
  • Expanded Disability Status Scale (EDSS) at screening: 0-5.5, inclusive
  • For all countries except Germany, at least one MS relapse during the previous year or two MS relapses in the previous 2 years or evidence of at least one Gd-enhancing lesion on MRI within 6 months prior to randomization

Inclusion Criteria for Optional OLE Period:

-Participants in Group A (ocrelizumab in the DBP) and Group B (fingolimod in the DBP) who, in the opinion of the investigator, may benefit from switching to ocrelizumab and who have completed the DBP with study treatment (ocrelizumab/fingolimod), may participate in the OLE period

Exclusion Criteria:

  • Known presence or suspicion of other neurologic disorders that may mimic MS
  • Significant uncontrolled somatic diseases, known active infection or any other significant condition that may preclude participant from participating in the study
  • Participants with severe cardiac disease or significant findings on the screening electrocardiograph ()

Exclusion Criteria for Optional OLE Period:

-Participants who have discontinued the study during the DBP

Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
188 participants (actual)

Study arms

  • Experimental
    Ocrelizumab

    Participants will receive ocrelizumab, as IV infusion Q24W. The first dose is given as dual infusions of half the dose of ocrelizumab on Days 1 and 15, and subsequent doses are given as single infusions of ocrelizumab Q24W. Participants will also receive a placebo of fingolimod administered as QD capsule.

    Drug: Ocrelizumab · Other: Fingolimod Placebo

  • Active comparator
    Fingolimod

    Participants will receive fingolimod PO, QD as per the prescribing information provided with fingolimod. Participants will also receive a placebo of ocrelizumab administered as IV infusion on Days 1 and 15, and Q24W thereafter.

    Other: Ocrelizumab Placebo · Drug: Fingolimod

Interventions

  • Ocrelizumab, 300 milligrams (mg) will be administered as IV infusion to participants who weigh \< 35 kilograms (kg), and ocrelizumab 600 mg, IV will be administered to participants who weigh ≥ 35 kg on Days 1 and 15 (half the dose, 2 weeks apart), and Q24W thereafter.

    Also known as: RO4964913; Ocrevus

  • OtherOcrelizumab Placebo

    Ocrelizumab matching placebo will be administered as IV infusion on Day 1 and Day 15, and Q24W thereafter.

  • Fingolimod will be administered QD as a capsule per the prescribing information (0.25 mg to participants who weigh ≤ 40 kg and 0.5 mg to participants who weigh \> 40 kg).

    Also known as: Gilenya®

  • OtherFingolimod Placebo

    Fingolimod matching placebo will be administered QD as a capsule.

06

What researchers measure

Primary outcomes

  1. Protocol-defined Annualized Relapse Rate (ARR)

    The population-level summary is rate ratio of ARR. The ARR is calculated as the total number of protocol-defined relapses divided by the total patient-years. Protocol-defined relapse is the occurrence of new/worsening neurological symptoms attributable to multiple sclerosis (MS) and immediately preceded by relatively stable or improving neurological state for ≥ 30 days. Symptoms must persist for \>24 hours \& should not be attributable to confounding clinical factors. The new/worsening neurological symptoms must be accompanied by objective neurological worsening consistent with an increase of at least half a step on the expanded disability status scale (EDSS) score, or 2 points on one of the appropriate functional system (FS) scores, or 1 point on two or more of the appropriate FS scores. The change must affect the selected FS (i.e., pyramidal, ambulation, cerebellar, brainstem, sensory, or visual). Adjusted values were reported. OM assessed non inferiority of ocrelizumab vs fingolimod.

    Time frame: Up to after the last participant randomized completed 24 weeks since first study treatment administration (up to approximately 160 weeks)

Secondary outcomes

  1. Protocol-defined ARR

    The population-level summary is rate ratio of ARR. The ARR is calculated as the total number of protocol-defined relapses divided by the total patient-years. Protocol-defined relapse is the occurrence of new/worsening neurological symptoms attributable to multiple sclerosis (MS) and immediately preceded by relatively stable or improving neurological state for ≥ 30 days. Symptoms must persist for \>24 hours \& should not be attributable to confounding clinical factors. The new/worsening neurological symptoms must be accompanied by objective neurological worsening consistent with an increase of at least half a step on the expanded disability status scale (EDSS) score, or 2 points on one of the appropriate functional system (FS) scores, or 1 point on two or more of the appropriate FS scores. The change must affect the selected FS (i.e., pyramidal, ambulation, cerebellar, brainstem, sensory, or visual). Adjusted values were reported. OM assessed non superiority of ocrelizumab vs fingolimod.

    Time frame: Up to after the last participant randomized completed 24 weeks since first study treatment administration (up to approximately 160 weeks)

  2. Number of New or Enlarging T2-hyperintense Lesions (T2 Lesions), as Detected by Brain Magnetic Resonance Imaging (MRI)

    Number of new or enlarging T2 lesions for each participant was calculated as the sum of the individual number of new or enlarging T2 lesions as detected by brain MRI.

    Time frame: Up to after the last participant randomized completed 24 weeks since first study treatment administration (up to approximately 160 weeks)

  3. Number of T1 Gd Lesions at Week 12

    Brain MRI with and without a Gd-contrast agent were performed to assess the number of Gd lesions.

    Time frame: At Week 12

  4. Number of Participants With Adverse Events (AEs)

    An AE was defined as any untoward medical occurrence in a clinical investigation subject administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.

    Time frame: Up to approximately 7 years

  5. Maximum Serum Concentration (Cmax) of Ocrelizumab

    Time frame: Cycle (1 Cycle=24 weeks)

  6. Area Under the Plasma Concentration-time Curve Over a Dosing Interval (AUC Tau) of Ocrelizumab

    Time frame: Cycle 1 (1 Cycle=24 weeks)

  7. Number of Participants With Anti-drug Antibodies (ADAs) to Ocrelizumab

    Participants were considered to be ADA positive if they were ADA negative or had missing data at baseline but developed an ADA response following study drug exposure (treatment-induced ADA response), or if they were ADA positive at baseline and the titer of one or more post-baseline samples was at least 0.60 titer unit greater than the titer of the baseline sample (treatment-enhanced ADA response). The total number of participants who developed ADAs to atezolizumab was determined by summing the ADA-positive participants across all timepoints.

    Time frame: Up to approximately 7 years

  8. Levels of Cluster of Differentiation 19 (CD19) + B-cell Count in Blood

    CD19+ B-cell count in blood will be assessed using flow cytometry.

    Time frame: Up to approximately 7 years

07

Results

Posted Jul 15, 2026

Participant flow

A total of 187 participants with relapsing-remitting multiple sclerosis (RRMS) took part in the study at 79 investigative sites across 25 countries.

Participant flow — Overall Study
MilestoneOcrelizumabFingolimod
Started9394
Safety-evaluable (se) population9392
Completed00
Not completed9394
Withdrew: Adverse event01
Withdrew: Lost to follow-up01
Withdrew: Reason not specified11
Withdrew: Physician decision02
Withdrew: Withdrawal by subject38
Withdrew: Ongoing in study8981

Outcome measures

SecondaryProtocol-defined ARR

The population-level summary is rate ratio of ARR. The ARR is calculated as the total number of protocol-defined relapses divided by the total patient-years. Protocol-defined relapse is the occurrence of new/worsening neurological symptoms attributable to multiple sclerosis (MS) and immediately preceded by relatively stable or improving neurological state for ≥ 30 days. Symptoms must persist for \>24 hours \& should not be attributable to confounding clinical factors. The new/worsening neurological symptoms must be accompanied by objective neurological worsening consistent with an increase of at least half a step on the expanded disability status scale (EDSS) score, or 2 points on one of the appropriate functional system (FS) scores, or 1 point on two or more of the appropriate FS scores. The change must affect the selected FS (i.e., pyramidal, ambulation, cerebellar, brainstem, sensory, or visual). Adjusted values were reported. OM assessed non superiority of ocrelizumab vs fingolimod.

Time frame:
Up to after the last participant randomized completed 24 weeks since first study treatment administration (up to approximately 160 weeks)
Reported as:
Number · relapses per patient-year
Protocol-defined ARR
relapses per patient-yearOcrelizumabFingolimod
Protocol-defined ARR0.070 (0.034 to 0.144)0.135 (0.075 to 0.243)
Statistical analysis
  • Ocrelizumab vs Fingolimod · Wald Test · p = 0.159 · Adjusted rate ratio: 0.517 · 95% CI 0.193 to 1.329
SecondaryNumber of New or Enlarging T2-hyperintense Lesions (T2 Lesions), as Detected by Brain Magnetic Resonance Imaging (MRI)

Number of new or enlarging T2 lesions for each participant was calculated as the sum of the individual number of new or enlarging T2 lesions as detected by brain MRI.

Time frame:
Up to after the last participant randomized completed 24 weeks since first study treatment administration (up to approximately 160 weeks)
Reported as:
Number · lesions
Number of New or Enlarging T2-hyperintense Lesions (T2 Lesions), as Detected by Brain Magnetic Resonance Imaging (MRI)
lesionsOcrelizumabFingolimod
Number of New or Enlarging T2-hyperintense Lesions (T2 Lesions), as Detected by Brain Magnetic Resonance Imaging (MRI)495908
Statistical analysis
  • Ocrelizumab vs Fingolimod · Adjusted rate ratio: 0.522 · 95% CI 0.359 to 0.760
  • Ocrelizumab vs Fingolimod · Wald Test · p = 0.001 · Adjusted rate ratio: 0.522 · 95% CI 0.359 to 0.760
SecondaryNumber of T1 Gd Lesions at Week 12

Brain MRI with and without a Gd-contrast agent were performed to assess the number of Gd lesions.

Time frame:
At Week 12
Reported as:
Number · lesions
Number of T1 Gd Lesions at Week 12
lesionsOcrelizumabFingolimod
Number of T1 Gd Lesions at Week 12533
Statistical analysis
  • Ocrelizumab vs Fingolimod · Wald Test · p = 0.001 · Adjusted rate ratio: 0.128 · 95% CI 0.034 to 0.414
SecondaryNumber of Participants With Adverse Events (AEs)

An AE was defined as any untoward medical occurrence in a clinical investigation subject administered a pharmaceutical product, regardless of causal attribution. An AE can therefore be any unfavorable and unintended sign, symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product.

Time frame:
Up to approximately 7 years

Results for this outcome have not been posted.

SecondaryMaximum Serum Concentration (Cmax) of Ocrelizumab
Time frame:
Cycle (1 Cycle=24 weeks)
Reported as:
Geometric mean · micrograms per milliliter (µg/ml)
Maximum Serum Concentration (Cmax) of Ocrelizumab
micrograms per milliliter (µg/ml)Ocrelizumab
Maximum Serum Concentration (Cmax) of Ocrelizumab142 ± 0.173
SecondaryArea Under the Plasma Concentration-time Curve Over a Dosing Interval (AUC Tau) of Ocrelizumab
Time frame:
Cycle 1 (1 Cycle=24 weeks)
Reported as:
Geometric mean · µg/mL.day
Area Under the Plasma Concentration-time Curve Over a Dosing Interval (AUC Tau) of Ocrelizumab
µg/mL.dayOcrelizumab
Area Under the Plasma Concentration-time Curve Over a Dosing Interval (AUC Tau) of Ocrelizumab3020 ± 0.266
SecondaryNumber of Participants With Anti-drug Antibodies (ADAs) to Ocrelizumab

Participants were considered to be ADA positive if they were ADA negative or had missing data at baseline but developed an ADA response following study drug exposure (treatment-induced ADA response), or if they were ADA positive at baseline and the titer of one or more post-baseline samples was at least 0.60 titer unit greater than the titer of the baseline sample (treatment-enhanced ADA response). The total number of participants who developed ADAs to atezolizumab was determined by summing the ADA-positive participants across all timepoints.

Time frame:
Up to approximately 7 years

Results for this outcome have not been posted.

SecondaryLevels of Cluster of Differentiation 19 (CD19) + B-cell Count in Blood

CD19+ B-cell count in blood will be assessed using flow cytometry.

Time frame:
Up to approximately 7 years

Results for this outcome have not been posted.

PrimaryProtocol-defined Annualized Relapse Rate (ARR)

The population-level summary is rate ratio of ARR. The ARR is calculated as the total number of protocol-defined relapses divided by the total patient-years. Protocol-defined relapse is the occurrence of new/worsening neurological symptoms attributable to multiple sclerosis (MS) and immediately preceded by relatively stable or improving neurological state for ≥ 30 days. Symptoms must persist for \>24 hours \& should not be attributable to confounding clinical factors. The new/worsening neurological symptoms must be accompanied by objective neurological worsening consistent with an increase of at least half a step on the expanded disability status scale (EDSS) score, or 2 points on one of the appropriate functional system (FS) scores, or 1 point on two or more of the appropriate FS scores. The change must affect the selected FS (i.e., pyramidal, ambulation, cerebellar, brainstem, sensory, or visual). Adjusted values were reported. OM assessed non inferiority of ocrelizumab vs fingolimod.

Time frame:
Up to after the last participant randomized completed 24 weeks since first study treatment administration (up to approximately 160 weeks)
Reported as:
Number · relapses per patient-year
Protocol-defined Annualized Relapse Rate (ARR)
relapses per patient-yearOcrelizumabFingolimod
Protocol-defined Annualized Relapse Rate (ARR)0.070 (0.034 to 0.144)0.135 (0.075 to 0.243)
Statistical analysis
  • Ocrelizumab vs Fingolimod · Adjusted rate ratio: 0.517 · 95% CI 0.193 to 1.329

Adverse events

Collected over Up to approximately 160 weeks. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Ocrelizumab0/93 (0%)6/93 (6.5%)76/93 (81.7%)
Fingolimod0/92 (0%)8/92 (8.7%)65/92 (70.7%)
Most frequent serious events
Showing 10 of 19
Most frequent serious events
EventOcrelizumabFingolimod
PneumoniaInfections and infestations2/931/92
NeutropeniaBlood and lymphatic system disorders0/931/92
Sinus bradycardiaCardiac disorders0/931/92
General physical health deteriorationGeneral disorders0/931/92
ConjunctivitisInfections and infestations0/931/92
Dengue feverInfections and infestations0/931/92
InfluenzaInfections and infestations0/931/92
Toxicity to various agentsInjury, poisoning and procedural complications0/931/92
Electrocardiogram QT prolongedInvestigations0/931/92
Transaminases increasedInvestigations0/931/92
Most frequent other events
Showing 10 of 30
Most frequent other events
EventOcrelizumabFingolimod
Infusion related reactionInjury, poisoning and procedural complications45/9322/92
Upper respiratory tract infectionInfections and infestations29/9325/92
HeadacheNervous system disorders27/9323/92
NasopharyngitisInfections and infestations19/9314/92
Multiple sclerosis relapseNervous system disorders10/9314/92
InfluenzaInfections and infestations13/935/92
NauseaGastrointestinal disorders7/9311/92
Oropharyngeal painRespiratory, thoracic and mediastinal disorders2/939/92
FatigueGeneral disorders9/937/92
SinusitisInfections and infestations9/933/92

Baseline characteristics

Full Analysis Set (FAS) included all randomized participants, with participants grouped according to their assigned treatment.

Age, Continuous
Age, Continuous(years)OcrelizumabFingolimodTotal
Mean15.0 ± 1.515.0 ± 1.515.0 ± 1.5
Sex: Female, Male
Sex: Female, Male(Participants)OcrelizumabFingolimodTotal
Female6762129
Male263258
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)OcrelizumabFingolimodTotal
Hispanic or Latino261844
Not Hispanic or Latino5055105
Unknown or Not Reported172138
Race (NIH/OMB)
Race (NIH/OMB)(Participants)OcrelizumabFingolimodTotal
American Indian or Alaska Native437
Asian112
Native Hawaiian or Other Pacific Islander000
Black or African American369
White6360123
More than one race6410
Unknown or Not Reported162036
08

Study locations

71 sites
09

References and documents

Publications

  • Mar S, Valeriani M, Steinborn B, Schreiner T, Waubant E, Filippi M, Kotulska K, Mazurkiewicz-Beldzinska M, El Azzouzi B, Lin CJ, Shen YA, Kletzl H, Evershed J, Hogea A, Manlius C, Bonati U, Banwell B. Ocrelizumab dose selection for treatment of pediatric relapsing-remitting multiple sclerosis: results of the OPERETTA I study. J Neurol. 2025 Jan 15;272(2):137. doi: 10.1007/s00415-024-12879-z. PubMed 39812825 ↗

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: Yes — For eligible studies, qualified researchers may request access to individual patient level clinical data. See Roche's commitment to transparency of clinical study information here: https://go.roche.com/data_sharing

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 15, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT05123703
Lead sponsor
Hoffmann-La Roche
Collaborators
PPD Development, LP
Responsible party
Sponsor
First posted
Nov 17, 2021
Start date
May 19, 2022
Primary completion
Jun 9, 2025
Completion
Sep 17, 2029 (estimated)
Results posted
Jul 15, 2026
Last update
Jul 15, 2026

Study contacts

Clinical Trials
study director · Hoffmann-La Roche

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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