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RecruitingNCT06872333Updated Jun 4, 2026

Allo HSCT for High Risk Hemoglobinopathies

A Phase 2 interventional study of Alemtuzumab and Total Body Irradiation in Graft Failure, Sickle Cell Disease and Hemoglobinopathies, sponsored by Masonic Cancer Center, University of Minnesota. Recruiting at 1 site in United States. Open to participants aged Up to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-06-04.

Sponsored by Masonic Cancer Center, University of Minnesota · Phase 2, Interventional, and Other

From the registry’s dates

  • Registered 3 months after the study started (first participant enrolled Nov 2024, registered Mar 2025).
  • Started Nov 2024; still recruiting 1 year 10 months later.
Phase
Phase 2
Study type
Interventional
Enrollment
62
Allocation
Non-randomized
Ages
Up to 55 Years
Sex
All
01

Study summary

A single center, open label, interventional, phase II trial for donor transplant for high risk hemoglobinopathies and other red cell transfusion dependent disorders utilizing allogeneic hematopoietic stem cell transplantation (HSCT) regimens.

02

Conditions studied

  • Graft Failure
  • Sickle Cell Disease
  • Hemoglobinopathies
03

In context

Anemia, Sickle Cell

1,103 studies on the registry are indexed under Anemia, Sickle Cell; 235 are open to participants now.

This study's planned enrollment of 62 is above the median of 40 across 750 interventional studies indexed under Anemia, Sickle Cell.

Browse Anemia, Sickle Cell studies →

Lead sponsor

Masonic Cancer Center, University of Minnesota is the lead sponsor of 284 studies on the registry; 34 are open to participants now.

Of its 39 completed or terminated interventional studies of FDA-regulated products, 28 (72%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 55 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Sickle Cell Disease (SCD)
  • SCD Patients with a fully matched sibling donor (MSD) irrespective of the frequency or severity of symptoms MSD transplant can be considered. Parents/patient must be counseled as to the risks and benefits and provide their voluntary informed consent
  • Transfusion Dependent Alpha- or Beta- Thalassemia
  • Diamond Blackfan Anemia
  • Other Non-Malignant Hematologic Disorders
  • Karnofsky ≥ 60%, Lansky play score ≥ 60. Patients with lower performance score can be considered based on study team's evaluation.
  • Sexually active persons of childbearing potential or persons with partners of childbearing potential must agree to use a highly effective form of contraception during study treatment and for at least 4 months after the transplant.

Exclusion criteria

Exclusion Criteria:

  • Pregnant, breastfeeding or intending to become pregnant during the study. Persons of childbearing potential must have a negative pregnancy test (serum or urine) within 30 days of the start of treatment
  • HIV infection with a detectable viral load. All HIV+ patients must be evaluated by infectious disease (ID) and an HIV management plan established prior to transplantation.
  • Active, uncontrolled infection - infection that is stable or improving after 1 week of appropriate therapy (4 weeks for presumed or documented fungal infections) will be permitted
  • Known allergy to any of the study components
  • Psychiatric illness/social situations that, in the judgement of the enrolling Investigator, would limit compliance with study requirements
  • Other illness or a medical issue that, in the judgement of the enrolling Investigator, would exclude the patient from participating in this study
05

Study design

Phase
Phase 2
Primary purpose
Other
Allocation
Non-randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
62 participants (estimated)

Study arms

  • Experimental
    Arm A - Closed

    Arm A Matched sib regimen - Age 6 -55 (per physician preference for patients over 6) Campath/TBI

    Drug: Alemtuzumab · Radiation: Total Body Irradiation · Biological: Cell Infusion · Drug: Sirolimus · Drug: Mycophenolate Mofetil

  • Experimental
    Arm B

    Arm B Matched sib regimen - 0-55 (per physician preference for patients over 6) ATG/Flu/Bu

    Biological: Cell Infusion · Drug: Thymoglobulin · Drug: Fludarabine · Drug: Busulfan · Drug: Tacrolimus · Drug: Mycophenolate Mofetil

  • Experimental
    Arm C

    Arm C Fully Matched unrelated donor (MUD)- - 0-55 years; ATG/Flu/Bu

    Biological: Cell Infusion · Drug: Thymoglobulin · Drug: Fludarabine · Drug: Busulfan · Drug: Tacrolimus · Drug: Mycophenolate Mofetil · Drug: Plerixafor (mozobil)

  • Experimental
    Arm D

    Arm D: Haploindentical or mismatched unrelated donors (MMUD) - 0-55 years; ATG/Thiotepa/Cyclophosphamide/MESNA/Flu/TBI

    Drug: Sirolimus · Drug: Tacrolimus · Drug: Plerixafor (mozobil)

  • Experimental
    Arm E

    Matched sib regimen - Age 6-55 (per physician preference for patients over 6) Campath/TBI with peripheral blood stem cell graft

    Radiation: Total Body Irradiation · Biological: Cell Infusion · Drug: Thymoglobulin · Drug: Fludarabine · Drug: Cyclophosphamide · Drug: Sirolimus · Drug: Tacrolimus · Drug: Mycophenolate Mofetil

Interventions

  • DrugAlemtuzumab

    Alemtuzumab (Campath) will be administered IV over 2 hours on day -8 to day -4.

    Also known as: Campath

  • RadiationTotal Body Irradiation

    400 cGy in 2 split fractions will be administered per Department of RadiationOncology SOPs.

    Also known as: TBI

  • BiologicalCell Infusion

    On day 0 the cells will be infused per cell source specific institutional guidelines

  • DrugThymoglobulin

    ATG will be administered IV every 24 hours beginning on day -8 for all patients. Dosing will be model-based using Bayesian methodology13,14,15. Total doses and total number of doses (1-4 doses) will be determined based on absolute lymphocyte count and weight.

    Also known as: Rabbit ATG

  • DrugFludarabine

    Fludarabine will be administered IV over 1 hour every 24 hours on day -5 to day - 2. The daily dose of fludarabine will be determined by model-based dosing utilizing Bayesian methodology with a cumulative area under the curve (cAUC) of 20 mg\*hr/L (range 18-22 mg\*hr/L).

  • DrugBusulfan

    Busulfan dosing and administration and therapeutic drug monitoring (TDM) per institutional guidelines. Initial busulfan dosing will be determined by model-based dosing utilizing Bayesian methods with a cumulative area under the curve (cAUC) of 75 mg\*hr/L.

  • DrugCyclophosphamide

    Cyclophosphamide will be administered at a dose of 14.5 mg/kg over 2 hours IV daily on days -6 and -5. Cyclophosphamide dosing is calculated based on actual body weight (ABW). For Arm D - Cyclophosphamide 50 mg/kg IV will be administered over 2 hours on days +3 and +4. Cyclophosphamide dosing for post-transplant is calculated based on ideal body weight (IBW) unless patient weighs less than IBW, in which case actual body weight (ABW) will be used.

    Also known as: Cyclophosphamide with MESNA

  • DrugSirolimus

    Patients on Arm A and Arm D will receive sirolimus; beginning on day -3 and continuing until day +180 for patients on Arm A or beginning on day +5 and continuing until 1 year post transplant for patients on Arm D.

  • DrugTacrolimus

    Patients on Arm B and Arm C will receive tacrolimus, beginning on day -3 and continuing until day +180. Tacrolimus dosing and monitoring will be per institutional guidelines.

  • DrugMycophenolate Mofetil

    MMF will begin on day -3 (Arm A, B \& C) or day +5 (Arm D). Patients treated on adult service will receive 15 mg/kg (max 1500 mg/dose) given every 12 hours, rounded to nearest 250 mg. Patients on pediatric service will receive 15 mg/kg (max 1000 mg/dose) given every 8 hours. MMF dosing will be monitored and altered as clinically appropriate based on institutional guidelines. MMF will be stopped at day +30 (Arms A, B \& C) or day +35 (Arm D) or 7 days after engraftment, whichever day is later, if no acute GVHD.

    Also known as: (MMF)

  • DrugPlerixafor (mozobil)

    Plerixafor will beused to significantly increase stem cell yields on a second collection day compared to donors who continued mobilization on G-CSF only.

06

What researchers measure

Primary outcomes

  1. Incidence of Graft versus Host Disease (GvHD)

    Time frame: 1 year

Secondary outcomes

  1. Overall Survival

    Overall survival post HCT

    Time frame: 1 and 2 years

  2. Grade 3-4 Acute GvHD

    Grade 3-4 acute Graft versus Host Disease (GvHD) at 2 years post HCT.

    Time frame: 2 years

  3. Chronic Graft versus Host Disease (GvHD) Free

    Chronic Graft versus Host Disease (GvHD) Free at 2 years post HCT.

    Time frame: 2 years

  4. Failure Free Survival

    Failure Free Survival 2 years post HCT.

    Time frame: 2 years

07

Study locations

1 of 1 sites recruiting
  • Masonic Cancer Center
    Minneapolis, Minnesota 55455, United States
    • Ashish Gupta, MBBS, MPH · Contact
    Recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jun 4, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06872333
Lead sponsor
Masonic Cancer Center, University of Minnesota
Responsible party
Sponsor
First posted
Mar 12, 2025
Start date
Nov 19, 2024
Primary completion
Jun 1, 2030 (estimated)
Completion
Jun 1, 2032 (estimated)
Last update
Jun 4, 2026

Study contacts

Ashish Gupta, MBBS, MPH
Contact
gupta461@umn.edu
612-626-2961

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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