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NCT04935879CompletedPhase 3

A Study to Assess the Safety and Efficacy of Inclacumab in Participants With Sickle Cell Disease Experiencing Vaso-occlusive Crises

A Randomized, Double-blind, Placebo-controlled, Multicenter Study to Assess the Safety and Efficacy of Inclacumab in Participants With Sickle Cell Disease Experiencing Vaso-occlusive Crises

Source: ClinicalTrials.gov · Last updated 2 Dec 2025

Brief summary (registry, in English)

This Phase 3 study will assess the safety and efficacy of inclacumab, a P-selectin inhibitor, in reducing the frequency of vaso-occlusive crises (VOCs) in approximately 240 adult and adolescent participants (≥ 12 years of age) with sickle cell disease (SCD). Participants will be randomized to receive inclacumab or placebo.

Status (registry)
Completed
Phase (registry)
Phase 3
Study type
Interventional
Enrollment
241 (actual)
First submitted
26 May 2021
Start date
4 Oct 2021
Primary completion date
6 Jun 2024
Lead sponsor
Pfizer
NCT number
NCT04935879
EudraCT number
2020-005286-13

What you commit to

  • Study type: Interventional · Phase 3
  • Participants enrolled: 241
  • From 4 Oct 2021 to the primary completion date, 6 Jun 2024
  • 58 sites in 12 countries
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Participant is receiving regularly scheduled red blood cell (RBC) transfusion therapy (also termed chronic, prophylactic, or preventative transfusion).
  • Participant is taking or has received crizanlizumab (ADAKVEO®) within 90 days prior to the Screening Visit

Other

  • Participant weighs \> 133 kg (292 lbs.).
    • Other protocol-defined Inclusion/Exclusion may apply.

Who the study is looking for

  • 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.
  • Participant is male or female, ≥ 12 years of age at the time of informed consent.
  • Participant has experienced between 2 and 10 VOCs within the 12 months prior to the Screening Visit as determined by documented medical history. A prior VOC is defined as an acute episode of pain which:
    • Has no medically determined cause other than a vaso-occlusive event, and
    • Results in a visit to a medical facility (hospital, emergency department, urgent care center, outpatient clinic, or infusion center) or results in a remote contact with a healthcare provider; and
    • Requires parenteral narcotic agents, parenteral nonsteroidal anti- inflammatory drugs (NSAIDs), or an increase in treatment with oral narcotics.
  • Participants receiving erythropoiesis-stimulating agents (ESA, e.g., erythropoietin \[EPO\]) must be on a stable dose for at least 90 days prior to the Screening Visit and expected to continue with the stabilized regimen throughout the course of the study.
  • Participants receiving hydroxyurea (HU), L-glutamine, or voxelotor (Oxbryta®) must be on a stable dose for at least 30 days prior to the Screening Visit and expected to continue with the stabilized regimen throughout the course of the study.

Age in the registry: 12 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (58)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
Hospital de Clinicas de Porto Alegre
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Porto AlegreBrazilUnknown status
MultiHemo Servicos Medicos S.A
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RecifeBrazilUnknown status
Hospital das Clinicas da Faculdade de Medicina de Ribeirao Preto - USP
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Ribeirão PretoBrazilUnknown status
Instituto Estadual de Hematologia Arthur Siqueira Cavalcanti - HEMORIO
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Rio de JaneiroBrazilUnknown status
Instituto D'Or de Pesquisa e Ensino - Hospital Sao Rafael
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SalvadorBrazilUnknown status
Fundacao Faculdade Regional de Medicina de Sao Jose do Rio Preto
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São José do Rio PretoBrazilUnknown status
CEPEC-Centro de Pesquisa Clinica
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São PauloBrazilUnknown status
Casa de Saude Santa Marcelina
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São PauloBrazilUnknown status
Hospital Samaritano Higienópolis/Esho Empresa De Servicos Hospitalares S.A
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São PauloBrazilUnknown status
Clinica de la Costa Ltda.
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BarranquillaColombiaUnknown status
Sociedad de Oncologia y hematologia del Cesar S.A.S.
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ValleduparColombiaUnknown status
AinShams University Hospital
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CairoEgyptUnknown status
Faculty of Medicine Cairo University
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CairoEgyptUnknown status
Hopital Henri Mondor
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CréteilFranceUnknown status
Institut Universitaire du Cancer de Toulouse - Oncopole
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ToulouseFranceUnknown status
International Cancer Institute
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EldoretKenyaUnknown status
KEMRI/CRDR, Siaya, KEMRI Clinical Research Annex
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KisumuKenyaUnknown status
Gertrude's Children Hospital
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NairobiKenyaUnknown status
Strathmore University Medical Center - Center for Research in Therapeutic Sciences(CREATES)
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NairobiKenyaUnknown status
Kenya Medical Research Institute- Center for Respiratory Disease Research
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NairobiKenyaUnknown status
American University of Beirut Medical Center
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HamraLebanonUnknown status
Nini Hospital
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TripoliLebanonUnknown status
National Hospital, Abuja
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AbujaNigeriaUnknown status
University of Calabar Teaching Hospital
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CalabarNigeriaUnknown status
University of Nigeria Teaching Hospital
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EnuguNigeriaUnknown status
University of Abuja Teaching Hospital
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GwagwaladaNigeriaUnknown status
Barau Dikko Teaching Hospital/Kaduna State University
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KadunaNigeriaUnknown status
Aminu Kano Teaching Hospital
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KanoNigeriaUnknown status
Department of Pediatrics, College of Medicine, Lagos University Teaching Hospital
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LagosNigeriaUnknown status
Ahmadu Bello University Teaching Hospital
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ZariaNigeriaUnknown status
Sultan Qaboos University Hospital
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MuscatOmanUnknown status
Prince Mohammed bin Nasser Hospital
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JizanSaudi ArabiaUnknown status
NIMR-Mbeya Medical Research Center
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MbeyaTanzaniaUnknown status
University of Michigan Hospitals - Michigan Medicine
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Ann ArborUnited StatesUnknown status
Dana-Farber Cancer Institute IDS Pharmacy
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BostonUnited StatesUnknown status
Dana-Farber Cancer Institute
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BostonUnited StatesUnknown status
University of Illinois Clinical Research Center (CRC)
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ChicagoUnited StatesUnknown status
Rush University Medical Center
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ChicagoUnited StatesUnknown status
University of Illinois Hospital and Health Sciences System(UI Health)
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ChicagoUnited StatesUnknown status
Hospital Pharmacy Services- Investigational Drug Services
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ChicagoUnited StatesUnknown status
Rush University Medical Center Investigator Pharmacy
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ChicagoUnited StatesUnknown status
Duke University Medical Center
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DurhamUnited StatesUnknown status
DUMC Investigational Drug Services Pharmacy
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DurhamUnited StatesUnknown status
Uconn Health/Uconn John Dempsey Hospital/Neag Comprehensive Cancer Center/New England Sickle Cell
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FarmingtonUnited StatesUnknown status
Memorial Hermann - TMC Investigational Drugs, IDS Pharmacy
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HoustonUnited StatesUnknown status
UT Physicians Comprehensive Sickle Cell Clinic
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HoustonUnited StatesUnknown status
McGovern Medical School/Health Science Center Houston
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HoustonUnited StatesUnknown status
Memorial Hermann Hospital, Texas Medical Center - Clinical Research Unit (CRU)
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HoustonUnited StatesUnknown status
Arkansas Children's Hospital
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Little RockUnited StatesUnknown status
University of South Alabama Children's and Women's Hospital
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MobileUnited StatesUnknown status
University of South Alabama Strada Patient Care Center
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MobileUnited StatesUnknown status
University of South Alabama Mitchell Cancer Institute
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MobileUnited StatesUnknown status
UC Irvine Health
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OrangeUnited StatesUnknown status
UCI Center for clinical research
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OrangeUnited StatesUnknown status
Jacobi Medical Center
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The BronxUnited StatesUnknown status
Baskent University Hospital
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AdanaTurkey (Türkiye)Unknown status
Acibadem Adana Hastanesi Cocuk Hematoloji Onkoloji
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AdanaTurkey (Türkiye)Unknown status
Mersin Universitesi Tip Fakultesi Saglik Arastirma ve Uygulama Merkezi Hastanesi
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YenişehirTurkey (Türkiye)Unknown status

This page is information, not medical advice. Discuss any trial with your doctor.