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Zilucoplan

Phase 2

Amyotrophic Lateral Sclerosis | Small molecule | Neurology |Merit Medical Systems, Inc.|Last Updated: May 14, 2026

Target and mechanism

Molecular targetC5
Target classInhibitor
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials2
Total Enrollment1,662

FDA Designations

No designations recorded

Clinical trial landscape

Zilucoplan · 2 trials · 1 indication

Phase 2 2
NCT04436497HEALEY ALS Platform Trial - Regimen A ZilucoplanAmyotrophic Lateral Sclerosis
COMPLETED162 Analytics
NCT04297683HEALEY ALS Platform Trial - Master ProtocolAmyotrophic Lateral Sclerosis
RECRUITING1,500 Analytics
PHASE2COMPLETED
HEALEY ALS Platform Trial - Regimen A Zilucoplan
Amyotrophic Lateral SclerosisUnlock trial analytics
PHASE2RECRUITING
HEALEY ALS Platform Trial - Master Protocol
Amyotrophic Lateral SclerosisUnlock trial analytics

Study Endpoints

Primary Endpoints

Disease Progression as Assessed by the ALSFRS-R Total Score
Baseline through 24 Weeks

Change in disease severity as measured by the ALS Functional Rating Scale-Revised (ALSFRS-R) total score using a Bayesian repeated measures model that accounts for loss to follow-up due to mortality. Each of 12 questions assessing distinct functional ability is scored from 4 (normal) to 0 (no ability), with a maximum total score of 48 and a minimum total score of 0. Patients with higher scores have more physical function.

Mortality Event Rate
Baseline through 24 Weeks

Mortality is defined as death or death equivalent. A participant is determined to meet the criteria of death equivalent if permanent assisted ventilation (PAV) is used for more than 22 hours per day for more than seven days in a row. The rate of mortality was estimated from a Bayesian shared-parametric model that assumed exponentially distributed survival times.

Disease Progression
36 Weeks

Change in disease severity as measured by the ALS Functional Rating Scale-Revised (ALSFRS-R) total score and survival.

Secondary Endpoints

Respiratory Function
Baseline and 24 Weeks
Muscle Strength
Baseline and 24 Weeks
Number of Participants That Experienced Death or Death Equivalent
Baseline through 24 Weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
ZilucoplanEXPERIMENTALDrug: Zilucoplan Administration: Subcutaneous injection Dosage: 0.3mg/kg administered daily
Matching PlaceboPLACEBO_COMPARATORAdministration: Subcutaneous injection Dosage: Daily subcutaneous injection
Regimen A - ZilucoplanEXPERIMENTALParticipants are randomized to receive either active zilucoplan or matching placebo. NO LONGER RECRUITING; RESULTS REPORTED.
Regimen B - VerdiperstatEXPERIMENTALParticipants are randomized to receive either active verdiperstat or matching placebo. NO LONGER RECRUITING; RESULTS REPORTED.
Regimen C - CNM-Au8EXPERIMENTALParticipants are randomized to receive either active CNM-Au8 or matching placebo. NO LONGER RECRUITING; RESULTS REPORTED.
Regimen D - PridopidineEXPERIMENTALParticipants are randomized to receive either active Pridopidine or matching placebo. NO LONGER RECRUITING; RESULTS REPORTED.
Regimen E - SLS-005 TrehaloseEXPERIMENTALParticipants are randomized to receive either active SLS-005 Trehalose or matching placebo. NO LONGER RECRUITING; RESULTS REPORTED.
Regimen F- ABBV-CLS-7262EXPERIMENTALParticipants are randomized to receive either active ABBV-CLS-7262 or matching placebo. NO LONGER RECRUITING; RESULTS REPORTED.
Regimen G - DNL343EXPERIMENTALParticipants are randomized to receive either active DNL343 or matching placebo. NO LONGER RECRUITING; RESULTS REPORTED.
Regimen I - NUZ-001EXPERIMENTALParticipants are randomized to receive either active NUZ-001 or matching placebo.

Interventions

NameTypeDescription
ZilucoplanDRUGDrug: Zilucoplan Administration: Subcutaneous injection Dosage: 0.3mg/kg administered daily
Matching PlaceboDRUGDrug: Matching Placebo Administration: Subcutaneous injection Dosage: Daily subcutaneous injection
VerdiperstatDRUGDrug: Verdiperstat Administration: Oral Dose: 600mg twice daily
CNM-Au8DRUGDrug: CNM-Au8 Administration: Oral Dose: 30 mg or 60 mg daily
PridopidineDRUGDrug: Pridopidine Administration: Oral Dose: 45mg twice daily
SLS-005 TrehaloseDRUGDrug: SLS-005 Trehalose Administration: Infusion Dose: 0.75 g/kg weekly
ABBV-CLS-7262DRUGDrug: ABBV-CLS-7162 Administration: Oral Dose: Dose 1 or Dose 2
DNL343DRUGDrug: DNL343 Administration: Oral Dose: Once per day
NUZ-001DRUGDrug: NUZ-001. Administration: Oral. Dose: Once per day.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria: * The following inclusion criterion is in addition to the inclusion criteria specified in the Master Protocol (NCT NCT04297683). 1. Vaccination with a quadrivalent meningococcal vaccine and meningococcal serotype B vaccine at least 14 days prior to the first dose of study dru...

Countries:United States
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Frequently asked questions about Zilucoplan

What is Zilucoplan used for in Amyotrophic Lateral Sclerosis?

Zilucoplan is an investigational small molecule being studied for the treatment of Amyotrophic Lateral Sclerosis (ALS). It is currently in Phase 2 clinical development, with trials evaluating its safety and efficacy in patients with this neurological condition.

Who makes Zilucoplan?

Zilucoplan is being developed by Merit Medical Systems, Inc., a company traded on the NASDAQ under the ticker symbol MMSI. The company is conducting clinical trials to evaluate the drug's potential in treating Amyotrophic Lateral Sclerosis.

What phase is Zilucoplan in?

Zilucoplan is in Phase 2 clinical development for Amyotrophic Lateral Sclerosis. It is an investigational drug, meaning it has not been approved by regulatory authorities and is still undergoing clinical trials to assess its safety and effectiveness.

What clinical trials is Zilucoplan in?

Zilucoplan is being studied in two clinical trials. The first, NCT04297683, is the HEALEY ALS Platform Trial Master Protocol, which is currently recruiting with an enrollment of 1500 participants. The second, NCT04436497, is the HEALEY ALS Platform Trial Regimen A Zilucoplan, which has been completed with 162 participants.

Is Zilucoplan the same as any other drug?

Zilucoplan is a distinct investigational small molecule and is not known to be the same as any other approved or investigational drug. It is being evaluated specifically for its potential role in treating Amyotrophic Lateral Sclerosis.