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Pozelimab/Cemdisiran

Phase 1

Sporadic Inclusion Body Myositis (sIBM) | Small molecule | Other |Regeneron Pharmaceuticals, Inc.|Last Updated: Jan 16, 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
UNCONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment10
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT06479863Efficacy and Safety of Pozelimab and Cemdisiran Combination Therapy in Patients With Sporadic Inclusion Body MyositisEARLY_PHASE1 RECRUITING 10Aug 8, 2024Aug 30, 2027Jan 16, 20262 United States
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Study Endpoints
Primary Endpoints
IBM-Functional Rating Scale (IBM-FRS)
change from screening visit through week 104.

The IBM-FRS is a 10-item interviewer-administered patient-reported outcomes (PRO) measure that assesses physical function in patients with IBM. The IBMFRS includes items assessing lower body physical function, general physical function, the ability to perform certain activities of daily living, fine motor skills, and swallowing. On a Likert scale ranging from 0 (unable to perform activity) to 4 (normal), patients are asked to rate their difficulty in performing tasks relative to each concept before disease onset. Scores on the IBMFRS range from 0 to 40, with higher scores indicating better functioning.

IBM Physical Functioning Assessment (sIFA)
change from screening visit through week 104.

The sIFA is an 11-item self-administered PRO measure assessing physical function in patients with sIBM. This questionnaire will be completed by the patient on a numeric rating scale ranging from 0 (no difficulty) to 10 (unable to do), with a total score ranging from 0 to 100, where 100 indicates severe limitations. P atients will be asked to rate their difficulty with performing tasks involving lower and upper body physical function, general physical function, fine motor skills, and swallowing in the past 7 days.

Secondary Endpoints
Manual Muscle Testing
Change from screening visit through week 104
Hand Grip Strength
Change from screening visit through week 104
Quadriceps Strength Test
Change from screening visit through week 104
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
INJECTIONOTHERpatients to receive Pozelimab 200mg/Cemdisiran 200 mg SC injections every 4 weeks for 104 weeks. SC injections will be administered by the study staff and the patient will be monitored for 30 minutes after the initial first injection. During the remainder of the study, injections can be administered at home by the patient or caregiver after injection training provided by the study staff. Designated persons will be observed to confirm their ability to perform the injections. The dosing window of the study treatment is within ±7 days from the scheduled dose date.
Interventions
NameTypeDescription
Pozelimab/CemdisiranCOMBINATION_PRODUCTPatients to receive Pozelimab 200mg/Cemdisiran 200 mg SC injections every 4 weeks for 104 weeks
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Eligibility Criteria
Age Range45 Years — 75 Years
SexALL
Healthy VolunteersNo
Study Sites2

Inclusion Criteria: * 1\. Age ≥45 years to 75 years of age 2. Diagnosed with sIBM based on the ENMC IBM Research Diagnostic Criteria 3. Willing and able to comply with clinic visits and study-related procedures. 4. Provide informed consent signed by the study patient or legally acceptable represent...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT06479863studyFirstPostDate: changed