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OMS906

Phase 2

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

Success Probability

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Trial Design

CONTROLLEDDMC
Total Trials2
Total Enrollment27

FDA Designations

No designations recorded

Clinical trial landscape

OMS906 · 2 trials · 1 indication

Phase 2 1Phase 1 1
NCT05972967Safety and Efficacy of OMS906 in Paroxysmal Nocturnal Hemoglobinuria Patients With a Sub-optimal Response to RavulizumabParoxysmal Nocturnal Hemoglobinuria
COMPLETED12 Analytics
PHASE2COMPLETED
Safety and Efficacy of OMS906 in Paroxysmal Nocturnal Hemoglobinuria Patients With a Sub-optimal Response to Ravulizumab
Paroxysmal Nocturnal HemoglobinuriaUnlock trial analytics

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 to 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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Recent Changes (Last 90 Days)

MEDIUMJun 11, 2026NCT05889299TRIAL_REMOVED: changed
MEDIUMJun 11, 2026NCT05889299TRIAL_REMOVED: changed
MEDIUMJun 11, 2026NCT05889299TRIAL_REMOVED: changed

Frequently asked questions about OMS906

What is OMS906 used for?

OMS906 is an investigational monoclonal antibody being developed for paroxysmal nocturnal hemoglobinuria (PNH), a rare hematologic disorder. It is currently in Phase 2 clinical development and has not been approved by regulatory authorities.

Who makes OMS906?

OMS906 is being developed by Omeros Corporation, a biopharmaceutical company traded on NASDAQ under the ticker OMER. The company is conducting clinical trials to evaluate the drug's safety and efficacy in patients with paroxysmal nocturnal hemoglobinuria.

What phase is OMS906 in?

OMS906 is in Phase 2 clinical development for paroxysmal nocturnal hemoglobinuria. It has completed two clinical trials, including a Phase 1 study and a Phase 2 study, and remains an investigational drug that is not yet approved.

What clinical trials has OMS906 been in?

OMS906 has been studied in two completed clinical trials. NCT05889299 was a Phase 1 study in 15 patients with paroxysmal nocturnal hemoglobinuria in Ukraine. NCT05972967 was a Phase 2 study in 12 patients with a sub-optimal response to ravulizumab, conducted in Germany, Greece, Switzerland, and the United Kingdom.

How does OMS906 work?

OMS906 is a monoclonal antibody, a type of biologic drug designed to bind to a specific target involved in the disease process. In paroxysmal nocturnal hemoglobinuria, it is being investigated for its ability to address the underlying complement system dysregulation, though the precise molecular target is not specified.