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Recruiting Phase 2 NCT03121001

NCT03121001 Study of HLA-Haploidentical Stem Cell Transplantation to Treat Clinically Aggressive Sickle Cell Disease

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Clinical Trial Summary
NCT ID NCT03121001
Status Recruiting
Phase Phase 2
Sponsor University of Illinois at Chicago
Condition Sickle Cell Disease
Study Type INTERVENTIONAL
Enrollment 50 participants
Start Date 2017-03-20
Primary Completion 2026-05

Eligibility & Interventions

Sex All sexes
Min Age 16 Years
Max Age 60 Years
Study Type INTERVENTIONAL
Interventions
ATGfludarabinecyclophosphamide

Eligibility Fast-Check

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

In Phase 2, researchers evaluate early signs of effectiveness. You may be randomized to receive the active treatment or a comparator. Monitoring continues closely.

This trial targets 50 participants in total. It began in 2017-03-20 with a primary completion date of 2026-05.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The study is a Phase II clinical trial. Patients will receive intensity modulated total body irradiation (TBI) at a dose of 3 Gy with standard fludarabine/ i.v. cyclophosphamide conditioning prior to human leukocyte antigen (HLA)-haploidentical hematopoietic stem cell transplant (HSCT). The primary objective of the study is to determine the engraftment at Day +60 following HLA-haploidentical hematopoietic stem cell transplant protocol using immunosuppressive agents and low-dose total body irradiation (TBI) for conditioning and post-transplant cyclophosphamide in patients with sickle cell disease.

Eligibility Criteria

Patient Eligibility: 1. Patients with sickle cell disease are eligible if they have any of the following complications: 1.1 Stroke or central nervous system event lasting longer than 24 hours 1.2 Frequent vaso-occlusive pain episodes, defined as ≥ 3 per year requiring emergency room, acute care center, hospital admissions, or home bedrest leading to absence from work or school. 1.3 Recurrent episodes of priapism, defined as ≥ 2 per year requiring emergency room visits 1.4 Acute chest syndrome with recurrent hospitalizations, defined as ≥ 2 lifetime events 1.5 Red-cell alloimmunization (≥ 2 antibodies) during long-term transfusion therapy 1.6 Bilateral proliferative retinopathy with major visual impairment in at least one eye 1.7 Osteonecrosis of 2 or more joints 1.8 Sickle cell nephropathy, defined by a GFR \< 90mL/min/1.73m2 or the presence of macroalbuminuria (urine albumin \> 300 mg/g creatinine) 1.9 Pulmonary hypertension, defined by a mean pulmonary arterypressure \>25mmHg 2. Age 16-60 years 3. Karnofsky performance status of 60 or higher (Appendix A) 4. Adequate cardiac function, defined as left ventricular ejection fraction ≥ 40% 5. Adequate pulmonary function, defined as diffusion lung capacity of carbon monoxide ≥ 50% predicted (after adjustment for hemoglobin concentration) 6. Estimated GFR ≥ 50mL/min/1.73m2 as calculated by the modified MDRD equation 7. ALT ≤ 3x upper limit of normal 8. HIV-negative 9. Patient is not pregnant 10. Patient is able and willing to sign informed consent 11. Patient does not have a fully HLA-matched sibling donor 12. Patient has an HLA-haploidentical relative Donor Eligibility Relatives (parents, offspring, siblings, aunts/uncles, cousins) will be tested by molecular typing of HLA class I (A, B, and C) and class II (DRB1) at low resolution. Only those that are an HLA-haploidentical match (≥ 4/8) will be considered as a potential donor. NOTE: If during testing, a fully HLA-matched sibling donor is found and is willing to donate his/her stem cells, the potential subject will not be eligible for this protocol. Donor consent will be obtained as per standard protocol of the bone marrow transplant unit.

Contact & Investigator

Central Contact

Damiano Rondelli, MD

✉ drond@uic.edu

📞 312 413-3547

Principal Investigator

Damiano Rondelli, MD

PRINCIPAL INVESTIGATOR

University of Illinois at Chicago

Frequently Asked Questions

Who can join the NCT03121001 clinical trial?

This trial is open to participants of all sexes, aged 16 Years or older, up to 60 Years, studying Sickle Cell Disease. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT03121001 trial and what does that mean for participants?

Phase 2 trials evaluate whether the treatment shows signs of effectiveness while continuing to monitor safety. More participants are enrolled than in Phase 1 to help refine the treatment protocol.

Is NCT03121001 currently recruiting?

Yes, NCT03121001 is actively recruiting participants. Contact the research team at drond@uic.edu for enrollment information.

Where is the NCT03121001 trial being conducted?

This trial is being conducted at Chicago, United States.

Who is sponsoring the NCT03121001 clinical trial?

NCT03121001 is sponsored by University of Illinois at Chicago. The principal investigator is Damiano Rondelli, MD at University of Illinois at Chicago. The trial plans to enroll 50 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: April 2026  ·  Data Methodology