Recent Updates
Recently added Catalysts

Inclacumab

Phase 3

Sickle Cell Disease | Monoclonal antibody | Hematology |Pfizer, Inc.|Trials Updated: Dec 2, 2025

Inclacumab development status

Highest phase Phase 3
Registered trials 4 across 2 sponsors since Mar 2013

Inclacumab target and mechanism

Molecular targetSELP
Target classAntagonist
ModalityMonoclonal antibody

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment241

FDA Designations

No designations recorded

Inclacumab clinical trials

Inclacumab · 1 trial · 3 indications

Phase 3 1
NCT04935879A Study to Assess the Safety and Efficacy of Inclacumab in Participants With Sickle Cell Disease Experiencing Vaso-occlusive CrisesSickle Cell Disease
COMPLETED241 Analytics
PHASE3COMPLETED
A Study to Assess the Safety and Efficacy of Inclacumab in Participants With Sickle Cell Disease Experiencing Vaso-occlusive Crises
Sickle Cell DiseaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Rate of Vaso-occlusive Crises (VOCs) [Adjudicated] Through Week 48
Randomization (Day 1) up to Week 48

A VOC was defined as an acute episode of pain that: had no medically determined cause other than a vaso-occlusive event; resulted in a visit to a medical facility (hospitalization, emergency department, urgent care center, outpatient clinic, or infusion center), or resulted in a remote contact with a healthcare provider and required parenteral narcotic agents, parenteral nonsteroidal anti-inflammatory drugs (NSAIDs), or an increase in treatment with oral narcotics. The rate of VOC was defined as number of VOC events per 48 weeks and presented in this outcome measure.

Secondary Endpoints

Time to First VOC Through Week 48
Randomization (Day 1) up to Week 48
Time to Second VOC Through Week 48
Randomization (Day 1) up to Week 48
Percentage of Participants With no VOCs Through Week 48
Randomization (Day 1) up to Week 48
Unlock Study Endpoints

Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
inclacumab, 30 mg/kgEXPERIMENTALParticipants will receive inclacumab 30 mg/kg administered IV every 12 weeks
placeboPLACEBO_COMPARATORParticipants will receive placebo administered IV every 12 weeks.

Interventions

NameTypeDescription
InclacumabDRUGInclacumab will be supplied in single use 10 mL vials at a concentration of 50 mg/mL. One vial contains 500 mg of inclacumab. This is a liquid concentrate for IV infusion.
PlaceboDRUGPlacebo will be supplied in single use 10 mL vials containing the same ingredients without the active drug. Placebo will be prepared as a liquid concentrate for IV infusion and administered in the same manner as active study drug
Unlock Study Design Details

Eligibility Criteria

Age Range12 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites58

Inclusion Criteria: 1. Participant has a confirmed diagnosis of SCD (HbSS, HbSC, HbSB0 thalassemia, or HbSB+ thalassemia genotype). Documentation of SCD genotype is required and may be based on documented history of laboratory testing or confirmed by laboratory testing during Screening. 2. Part...

Countries:United StatesBrazilColombiaEgyptFranceKenyaLebanonNigeriaOmanSaudi ArabiaTanzaniaTurkey (Türkiye)
Unlock Eligibility Criteria

Frequently asked questions about Inclacumab

What is Inclacumab used for in sickle cell disease?

Inclacumab is an investigational monoclonal antibody being studied to reduce vaso-occlusive crises in people with sickle cell disease. It was tested in a Phase 3 trial in participants aged 12 years and older who were experiencing vaso-occlusive pain episodes, including vaso-occlusive crisis.

What does Inclacumab target?

Inclacumab targets SELP, also known as P-selectin, and acts as an antagonist. By blocking P-selectin, the antibody is designed to interfere with the cell adhesion processes involved in vaso-occlusive crises in sickle cell disease.

Who is developing Inclacumab?

Inclacumab is being developed by Pfizer, Inc., which trades on the New York Stock Exchange under the ticker PFE. Pfizer sponsored the Phase 3 clinical study of the drug in sickle cell disease.

What phase is Inclacumab in?

Inclacumab is in Phase 3 development. It is investigational and has not been approved by the FDA. The Phase 3 study evaluating it in sickle cell disease has been completed.

What clinical trials is Inclacumab in?

Inclacumab was evaluated in the Phase 3 trial NCT04935879, titled A Study to Assess the Safety and Efficacy of Inclacumab in Participants With Sickle Cell Disease Experiencing Vaso-occlusive Crises. The completed trial enrolled 241 participants across the United States, Brazil, Colombia, Egypt, France, Kenya, Lebanon, Nigeria, Oman, Saudi Arabia, Tanzania, and Turkey.

How was the Inclacumab Phase 3 trial designed?

The Phase 3 trial NCT04935879 was a randomized, double-blind, placebo-controlled study. It enrolled 241 participants aged 12 years and older with sickle cell disease who were experiencing vaso-occlusive crises, and it has been completed.