Actively Recruiting

Phase 2
Age: 6Months - 34Years
All Genders
NCT02675959

Myeloablative Conditioning, Prophylactic Defibrotide and Haplo AlloSCT for Patients With Sickle Cell Disease

Led by New York Medical College · Updated on 2025-05-23

40

Participants Needed

4

Research Sites

543 weeks

Total Duration

On this page

Sponsors

N

New York Medical College

Lead Sponsor

U

University of California, Los Angeles

Collaborating Sponsor

AI-Summary

What this Trial Is About

This is a follow-up trial to NYMC 526 (NCT01461837) to assess the safety, efficacy and toxicity of administering Defibrotide prophylaxis for high-risk sickle cell or beta thalassemia patients undergoing a familial haploidentical allogeneic stem cell transplantation with CD34 enrichment and T-cell addback. This patient population historically has a risk of developing sinusoidal obstructive syndrome (SOS) and Defibrotide has demonstrated efficacy in treatment of SOS. The Funding Source is FDA OOPD.

CONDITIONS

Official Title

Myeloablative Conditioning, Prophylactic Defibrotide and Haplo AlloSCT for Patients With Sickle Cell Disease

Who Can Participate

Age: 6Months - 34Years
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Diagnosis of homozygous hemoglobin S disease, hemoglobin S B0/+ thalassemia, hemoglobin SC disease, or beta thalassemia intermedia/major
  • Patients must have one or more sickle cell disease complications such as stroke with MRI infarct, acute chest syndrome in the past 2 years with failed or declined treatments, recurrent painful events (3 or more in 2 years), abnormal TCD requiring transfusions, silent infarct on MRI, sickle cell nephropathy, splenic sequestration needing transfusion, aplastic crisis needing transfusion, avascular necrosis diagnosed by MRI, two or more leg ulcer episodes, recurrent priapism, or infant dactylitis
  • For Cohort 2 only: patients aged 18 to 34.99 with at least two of the following: WBC >13,500 on two occasions when not ill, tricuspid regurgitant jet velocity >3.0 m/s, chronic monthly transfusions (>12 in 12 months), history of sepsis, or NT-proBNP >160 ng/L at baseline when not ill
  • All patients must meet disease, age, organ function, and donor criteria
Not Eligible

You will not qualify if you...

  • Receiving systemic anticoagulants or fibrinolytic therapies
  • Known hypersensitivity to defibrotide
  • Females who are pregnant or breastfeeding
  • Uncontrolled infection at study entry
  • Having an unaffected HLA-matched family donor willing to donate
  • Karnofsky or Lansky performance score below 50% (except hemiplegia from prior stroke)
  • Demonstrated lack of compliance with medical care
  • Clinically significant liver fibrosis or cirrhosis
  • Previous hematopoietic stem cell transplant
  • Contraindications to defibrotide use

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Trial Site Locations

Total: 4 locations

1

University of California Los Angeles

Los Angeles, California, United States, 90095

Actively Recruiting

2

University of Florida

Gainesville, Florida, United States, 32610-0278

Actively Recruiting

3

New York Medical College

Valhalla, New York, United States, 10595

Actively Recruiting

4

Medical College of Wisconsin

Milwaukee, Wisconsin, United States, 53226

Actively Recruiting

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Research Team

M

Mitchell S Cairo, MD

CONTACT

E

Erin Morris, RN

CONTACT

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

TREATMENT

Number of Arms

1

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