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APL2

Phase 2

FSGS | Small molecule | Nephrology |Apellis Pharmaceuticals, Inc.|Last Updated: Sep 2, 2026

Success Probability

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment270

FDA Designations

No designations recorded

Clinical trial landscape

APL2 · 1 trial · 1 indication

Phase 2 1
NCT07213960A Sequential Phase 2/3 Study of APL2 in Patients With Focal Segmental GlomerulosclerosisFSGS
RECRUITING270 Analytics
PHASE2RECRUITING
A Sequential Phase 2/3 Study of APL2 in Patients With Focal Segmental Glomerulosclerosis
FSGSUnlock trial analytics

Study Endpoints

Primary Endpoints

Phase 2: Evaluate the efficacy of APL2 in terms of change from baseline in log-transformed urine protein to creatinine ratio (uPCR)
Baseline to Week 12

Change from Baseline in Log-Transformed uPCR will be based on triplicate first morning urine (FMU)

Phase 3: Change from baseline in log-transformed urine protein to creatinine ratio (uPCR)
Baseline to Week 52

Change from baseline in log-transformed uPCR will be based on triplicate first morning urine (FMU)

Secondary Endpoints

Phase 2: Evaluate the efficacy of APL2 in terms of change from baseline in log-transformed urine albumin to creatinine ratio (uACR)
Baseline to Week 12
Phase 3: Change from Baseline in log-transformed urine protein to creatinine ratio (uPCR)
Baseline to Week 104
Phase 3: Proportion of participants achieving Complete Remission
Week 104
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Phase 2 - APL2EXPERIMENTALSub-cutaneous infusions of APL2 (1080 mg / 20mL) twice weekly
Phase 3 - APL2EXPERIMENTALAdults: Sub-cutaneous infusions of APL2 (1080 mg / 20mL) twice weekly Adolescents: ≥50 Kg: Sub-cutaneous infusions of APL2 (1080 mg / 20mL) twice weekly 35 to \<50kg: First sub-cutaneous infusion of 648mg (12 mL) followed by 810mg (15 mL) every infusion thereafter (i.e. twice weekly) 30 to \<35kg: First \& Second sub-cutaneous infusion of 540mg (10mL) followed by 648mg (12 mL) every infusion thereafter (twice weekly)
Phase 3 - PlaceboPLACEBO_COMPARATORSubcutaneous infusions of a sterile solution, twice-weekly, and equivalent in volume to the active arm based on participant's age and weight

Interventions

NameTypeDescription
APL2DRUGComplement (C3) Inhibitor
PlaceboOTHERSterile solution of equal volume to active arm
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites2

Inclusion Criteria: * Age * Phase 2: adults aged ≥18 years * Phase 3: adults aged ≥18 years; if and where approved, adolescents (aged 12--17 years) at the time of signing the informed consent and assent form * Weight ≥30 kg and ≤100 kg at screening * FSGS diagnosis * Phase 2: primary, genet...

Countries:United States
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Recent Changes (Last 90 Days)

MEDIUMJul 23, 2026NCT07213960TRIAL_REMOVED: changed
MEDIUMJul 23, 2026NCT07213960TRIAL_REMOVED: changed
MEDIUMJul 23, 2026NCT07213960TRIAL_REMOVED: changed
CRITICALJun 22, 2026NCT07213960Status: NOT_YET_RECRUITING → SUSPENDED
CRITICALJun 22, 2026NCT07213960Status: NOT_YET_RECRUITING → SUSPENDED

Frequently asked questions about APL2

What is APL-2 used for?

APL-2 is an investigational therapy being studied for warm autoimmune hemolytic anemia, paroxysmal nocturnal hemoglobinuria, IgA nephropathy, and geographic atrophy secondary to age-related macular degeneration. It is a small molecule in Phase 3 development by Apellis Pharmaceuticals. APL-2 is not FDA approved and remains in clinical development.

What does APL-2 target?

APL-2 targets the complement system, specifically complement component C3. By inhibiting C3, APL-2 is designed to block complement activation at multiple levels. This mechanism is being investigated across complement-mediated diseases including paroxysmal nocturnal hemoglobinuria and geographic atrophy.

Who makes APL-2?

APL-2 is developed by Apellis Pharmaceuticals, Inc., a biopharmaceutical company traded on NASDAQ under the ticker APLS. Apellis is conducting clinical trials of APL-2 across multiple indications including geographic atrophy and paroxysmal nocturnal hemoglobinuria.

What phase is APL-2 in?

APL-2 is in Phase 3 clinical development. It is an investigational drug and has not been approved by the FDA. Completed Phase 2 and Phase 3 trials have evaluated APL-2 in conditions such as geographic atrophy, warm autoimmune hemolytic anemia, and IgA nephropathy.

What clinical trials is APL-2 in?

APL-2 has been studied in several completed trials. NCT03525613 is a Phase 3 study in geographic atrophy with 637 patients. NCT04085601 is a Phase 3 study in paroxysmal nocturnal hemoglobinuria with 53 patients. NCT03226678 and NCT03453619 are Phase 2 studies in autoimmune hemolytic anemia and glomerulopathies.

Is APL-2 the same as pegcetacoplan?

Yes, APL-2 is also known as pegcetacoplan. Clinical trials such as NCT04085601 refer to pegcetacoplan in patients with paroxysmal nocturnal hemoglobinuria. This alternative name is used in later-stage studies of the same investigational compound developed by Apellis Pharmaceuticals.