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A Biosimilar Trial to Investigate PK, PD, Safety With PB018 Versus US-licensed Ocrevus and EU-approved Ocrevus

A Randomized, Parallel-Group Double-Blind, Biosimilar Trial to Compare Pharmacokinetics (PK), Pharmacodynamics (PD), and Safety of PB018 Versus Ocrevus® in Participants With Multiple Sclerosis (MS)

Status
Not yet recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07606521
Enrollment
222
Registered
2026-05-26
Start date
2026-10-01
Completion date
2028-04-01
Last updated
2026-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Sclerosis

Brief summary

This is a randomized, parallel group, double-blind, active-controlled, clinical pharmacology study to compare Pharmacokinetics, Pharmacodynamics and safety of PB018 versus Ocrevus in patients with Multiple Sclerosis.

Detailed description

PB018, containing the active ingredient ocrelizumab, is a humanized monoclonal antibody that is being developed as a proposed biosimilar medicinal product to Ocrevus. The purpose of this study is to demonstrate similar PK, PD and safety of PB018 and Ocrevus in patients with Multiple Sclerosis.

Interventions

BIOLOGICALUS-Ocrevus

Intravenous(IV) infusion

BIOLOGICALPB018

Intravenous(IV) infusion

BIOLOGICALEU-Ocrevus

Intravenous(IV) infusion

Sponsors

Polpharma Biologics International AG
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Male or female participants diagnosed with RMS and PPMS forms of MS in accordance with the revised McDonald criteria * Evidence of recent disease activity as defined in study protocol * Neurological stability for ≥ 30 days before both screening and first study treatment * Baseline EDSS score between 0 to 6.0 (both inclusive) for RMS patients and between 3.0 and 6.5 (both inclusive) for PPMS patients. Key

Exclusion criteria

* Patient diagnosed with RMS for more than 10 years duration with an EDSS score ≤2.0 at Screening * Patients diagnosed with PPMS \< 10 years with an EDSS at screening ≤ 5.0 or \< 15 years with an EDSS at screening \> 5 * Patient unable to complete or has a contraindication to an MRI * Patient with contraindications and/or severe hypersensitivity to corticosteroids including methylprednisolone or any of the excipients of study drug or interventions defined in the study protocol. * Patient who has currently or history of any of medical conditions described in the study protocol. * Patients who have received or are going to receive any of prohibited medications or treatments defined in the study protocol.

Design outcomes

Primary

MeasureTime frameDescription
Area under the concentration time curveWeek 0 to Week 24Demonstrate similar PK between Ocrevus and PB018

Secondary

MeasureTime frameDescription
Time to reach Maximum serum concentration (Cmax)Week 0 and Week 2
Area under the concentration time curve in participants treated with PB018 versus US-licensed OcrevusWeek 0 to Week 16
Area under the concentration time curve in participants treated with PB018 versus EU-approved OcrevusWeek 0 to Week 16
Tmax (W0)Week 0
Tmax (W2)Week 2
T1/2Week 0 to Week 24
ClearanceWeek 0 to Week 24
Elimination rate constantWeek 0 to Week 24
Volume of Distribution (Vz)Week 0 to Week 24
CtroughWeek 0 to Week 24
Mean residence time (MRT)Week 0 to Week 24
B-cell Depletion (CD19+ Cells)Week 0 to Week 24Assessment of pharmacodynamic similarity between PB018 and reference ocrelizumab products based on the proportion of participants with CD19+ B-cell counts below predefined thresholds.
MRI Lesion ActivityWeek 0; Week 12; Week 24Assessment of similarity in MRI disease activity between PB018 and reference ocrelizumab products by evaluating new or enlarging brain lesions.
Expanded Disability Status Scale (EDSS) scoreScreening to Week 24Use of Disability Status Scale to measure for disability progression.
Total number of participants with positive anti-drug antibodies (ADAs)Week 0 to Week 24
Total number of participants with neutralizing antibodies (Nab)Week 0 to Week 24
Number of participants with treatment-emergent adverse events (TEAE) as assessed by CTCAE v6.0Week 0 to Week 24
Number of participants discontinued due to adverse events / serious adverse events as assessed by CTCAE v6.0Week 0 to Week 24
Number of participants with treatment-emergent adverse events of special interest (TEAESI) as assessed by CTCAE v6.0Week 0 to Week 24

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 29, 2026