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A Study of a Single Dose of Inclacumab to Reduce Re-admission in Participants With Sickle Cell Disease and Recurrent Vaso-occlusive Crises
A Study of a Single Dose of Inclacumab to Reduce Re-admission in Participants With Sickle Cell Disease and Recurrent Vaso-occlusive Crises

NCT04927247

TerminatedPhase 3

Sponsor: Pfizer

Conditions: Sickle Cell Disease, Vaso-occlusive Crisis, Vaso-occlusive Pain Episode in Sickle Cell Disease

Interventions: Inclacumab, Placebo

Countries: United States, Brazil, Colombia, France, Germany, Italy, Kenya, Lebanon

This Phase 3 study will assess the safety and efficacy of a single dose of inclacumab, a P-selectin inhibitor, for a vaso-occlusive crisis (VOC) after an index VOC in participants with sickle cell disease (SCD). Participants will be randomized to receive either inclacumab or placebo.

Eligibility overview

Sex: ALL

Age: 12 Years to —

Healthy volunteers: No

Study type: INTERVENTIONAL

Eligibility criteria
Inclusion Criteria:

1. Participant has an index VOC. The index VOC is any VOC that required admission to a healthcare facility and treatment with parenteral pain medication. An admission for the index VOC includes:

   1. A hospital admission, or
   2. An admission to an emergency room, observation unit, or infusion center for ≥ 12 hours, or
   3. 2 visits to an emergency room, observation unit, or infusion center over a 72-hour period

   for an acute episode of pain with no other cause other than a vaso- occlusive event that includes the following:
   * Uncomplicated VOC,
   * Acute chest syndrome (ACS),
   * Acute hepatic sequestration,
   * Acute splenic sequestration, or
   * Priapism.
2. Participant has a confirmed diagnosis of SCD (any genotype). Documentation of SCD genotype is required and may be based on documented history of laboratory testing or confirmed by laboratory testing at Baseline.
3. Participant is male or female, ≥ 12 years of age at the time of informed consent.
4. Participant has experienced between 2 and 10 VOCs within the 12 months prior to Screening as determined by documented medical history. The index VOC is not to be considered as one of the 2 to 10 events. A prior VOC is defined as an acute episode of pain that:

   1. Has no medically determined cause other than a vaso-occlusive event, and
   2. Results in a visit to a healthcare facility (hospital, emergency department, urgent care center, outpatient clinic, or infusion center) or results in a remote contact with a healthcare provider; and
   3. Requires parenteral narcotic agents, parenteral nonsteroidal anti-inflammatory drugs (NSAIDs), or an increase in treatment with oral narcotics.
5. Participants receiving erythropoiesis-stimulating agents (ESA, e.g., erythropoietin \[EPO\]) must be on a stable dose for at least 90 days prior to Screening and expected to continue with the stabilized regimen throughout the course of the study.
6. Participants receiving hydroxyurea (HU), L-glutamine, or voxelotor (Oxbryta®) must be on a stable dose for at least 30 days prior to Screening and expected to continue with the stabilized regimen throughout the course of the study.

Exclusion Criteria:

1. Participant is receiving regularly scheduled red blood cell (RBC) transfusion therapy (also termed chronic, prophylactic, or preventative transfusion).
2. Participant is taking or has received crizanlizumab (ADAKVEO®) within 90 days prior to Screening.
3. Participant weighs \> 133 kg (292 lbs.).

Other protocol-defined Inclusion/Exclusion may apply.
Locations (59)
  • Mobile, Alabama, United States
  • Mobile, Alabama, United States
  • Mobile, Alabama, United States
  • Phoenix, Arizona, United States
  • Little Rock, Arkansas, United States
  • Oakland, California, United States
  • Orange, California, United States
  • Tampa, Florida, United States
  • Ann Arbor, Michigan, United States
  • Detroit, Michigan, United States
  • Las Vegas, Nevada, United States
  • Buffalo, New York, United States
  • The Bronx, New York, United States
  • Durham, North Carolina, United States
  • Durham, North Carolina, United States
  • Memphis, Tennessee, United States
  • Richmond, Virginia, United States
  • Salvador, Estado de Bahia, Brazil
  • Recife, Pernambuco, Brazil
  • Porto Alegre, Rio Grande do Sul, Brazil
  • São José do Rio Preto, São Paulo, Brazil
  • São Paulo, São Paulo, Brazil
  • Rio de Janeiro, Brazil
  • São Paulo, Brazil
  • São Paulo, Brazil
  • Barranquilla, Atlántico, Colombia
  • Barranquilla, Atlántico, Colombia
  • Bobigny, France
  • Créteil, France
  • Regensburg, Germany
  • + 29 more on CT.gov