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OMS906

Phase 2

Paroxysmal Nocturnal Hemoglobinuria | Monoclonal antibody | Other |Omeros Corporation|Last Updated: May 11, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment27
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05972967Safety and Efficacy of OMS906 in Paroxysmal Nocturnal Hemoglobinuria Patients With a Sub-optimal Response to RavulizumabPHASE2 COMPLETED 12Mar 27, 2023Oct 10, 2024Oct 1, 20255 Germany, Greece +2
NCT05889299Study of the Safety and Efficacy of OMS906 in Patients With Paroxysmal Nocturnal HemoglobinuriaPHASE1 COMPLETED 15Dec 9, 2022Nov 3, 2025May 11, 20261 Ukraine
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Study Endpoints
Primary Endpoints
To assess the overall OMS906 administration at 8-week intervals in PNH patients.
56 weeks

Number and % of participants with Treatment-emergent Adverse Events (TEAEs) as assessed by CTCAE v5.0, including abnormalities in laboratory measures, ECGs and physical examinations

To Assess the Overall Safety and Tolerability of Zaltenibart (OMS906) Administration in PNH patients
48 weeks

Number and % of participants with Treatment-emergent Adverse Events (TEAEs) as assessed by CTCAE v5.0, including abnormalities in laboratory measures, ECGs and physical examinations.

Secondary Endpoints
Incidence of patients with hemoglobin increase ≥ 2.0 g/dL from baseline (Response criterion) baseline on adjunctive treatment and sustained during monotherapy.
56 weeks
Reticulocyte count
56 weeks
Lactate dehydrogenase (LDH)
56 weeks
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Study Design & Arms
AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
3 mg/kg IV OMS906 with Ravulizumab IVEXPERIMENTALUp to 6 doses of 3 mg/kg at 8-week intervals. All patients will receive 3 doses of OMS906 of 3 mg/kg Intravenous (IV) at 8-week intervals. Clinical responders at Week 24 will receive an additional 3 doses of OMS906 only at 8-week intervals at 5 mg/kg (monotherapy). Incomplete responders may receive an additional 3 doses of OMS906 with ravulizumab at 8-week intervals. Non responders will not receive additional OMS906.
5 mg/kg IV OMS906 with Ravulizumab IVEXPERIMENTALUp to 6 doses of 5 mg/kg at 8-week intervals. All patients will receive 3 doses of OMS906 of 5 mg/kg Intravenous (IV) at 8-week intervals. Clinical responders at Week 24 will receive an additional 3 doses of OMS906 only at 8-week intervals (monotherapy). Incomplete responders may receive an additional 3 doses of OMS906 with ravulizumab at 8-week intervals. Non responders will not receive additional OMS906.
OMS906 study drug administration in three phasesEXPERIMENTAL1. 5 mg/kg SC administered every 4 weeks (Q4W), 2. 5 mg/kg IV administered once followed by administration of additional doses of 5 mg/kg IV at the occurrence of protocol-defined subclinical breakthrough hemolysis, and 3.) 8 mg/kg IV every 8 weeks (Q8W) on a fixed-dosing (FD) schedule
Interventions
NameTypeDescription
OMS906BIOLOGICALBiological: OMS906
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Eligibility Criteria
Age Range18 Years — 99 Years
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: 1. Confirmed diagnosis of PNH by flow cytometry with PNH clone size of \> 10% red blood cells (RBCs) and/or granulocytes. 2. Male or female adults 18 years and older. 3. Completed informed consent procedures. 4. In relation to ravulizumab treatment prescribed in accordance with ...

Countries:GermanyGreeceSwitzerlandUnited KingdomUkraine
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