Pharmacologic Pretransplant Immunosuppression (PTIS) + Reduced Toxicity Conditioning (RTC) Allogeneic Stem Cell Transplantation in Inherited Hematologic Disorders

NCT ID: NCT05293509

Last Updated: 2023-09-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

PHASE2

Study Classification

INTERVENTIONAL

Study Start Date

2022-03-02

Study Completion Date

2023-09-18

Brief Summary

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To assess the outcomes of NRM when administering pharmacologic pretransplant immunosuppression (PTIS) followed by pretransplant reduced toxicity conditioning (RTC) and an allogeneic stem cell transplant (allo-SCT) and post-transplant graft-versus-host disease prophylaxis based on post-transplant cyclophosphamide (PT-Cy) in patients with inherited blood disorders.

Detailed Description

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Objectives

Primary:

To estimate the 100-day non-relapse mortality (NRM) rate when administering pharmacologic pretransplant immunosuppression (PTIS) followed by pretransplant reduced toxicity conditioning (RTC) and an allogeneic stem cell transplant (allo-SCT) and post-transplant graft-versus-host disease prophylaxis based on post-transplant cyclophosphamide (PT-Cy) in patients with inherited blood disorders.

Secondary outcomes include the following:

i. Immune reconstitution ii. Infectious complications iii. Quality of life (QOL) at 3 months,100 days, and 1 year post-transplant iv. OS, EFS, and GRFS v. Incidence of aGVHD at day 100. vi. Rate of chronic GVHD within the first-year post transplantation. vii. Rate of Graft failure

Conditions

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Stem Cell Transplantation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Phase I: Sequential Pharmacological PTIS

Group Type EXPERIMENTAL

Fludarabine

Intervention Type DRUG

40 mg/m2/day i.v.- by vein

Dexamethasone

Intervention Type DRUG

25 mg/m2/day i.v.-by vein

Cyclophosphamide

Intervention Type DRUG

100 mg/m2 IV-by vein

Bortezomib

Intervention Type DRUG

Four doses of bortezomib at a dose of 1.3 mg/m2 -injection under the skin

Rituximab

Intervention Type DRUG

Four doses of rituximab at a dose of 375 mg/m2- by vein

Busulfan

Intervention Type DRUG

110 mg/m2 i.v-by vein

Cyclophosphamide (Cy)

Intervention Type DRUG

by vein

Tacrolimus (or cyclosporine)

Intervention Type DRUG

by vein

Phase II: RTC Regimen and GVHD Prophylaxis Based on Post-Cy

Group Type EXPERIMENTAL

Fludarabine

Intervention Type DRUG

40 mg/m2/day i.v.- by vein

Cyclophosphamide

Intervention Type DRUG

100 mg/m2 IV-by vein

Busulfan

Intervention Type DRUG

110 mg/m2 i.v-by vein

Cyclophosphamide (Cy)

Intervention Type DRUG

by vein

Tacrolimus (or cyclosporine)

Intervention Type DRUG

by vein

Mycophenolate mofetil (MMF)

Intervention Type DRUG

given by PO

Rabbit ATG

Intervention Type DRUG

by vein

Interventions

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Fludarabine

40 mg/m2/day i.v.- by vein

Intervention Type DRUG

Dexamethasone

25 mg/m2/day i.v.-by vein

Intervention Type DRUG

Cyclophosphamide

100 mg/m2 IV-by vein

Intervention Type DRUG

Bortezomib

Four doses of bortezomib at a dose of 1.3 mg/m2 -injection under the skin

Intervention Type DRUG

Rituximab

Four doses of rituximab at a dose of 375 mg/m2- by vein

Intervention Type DRUG

Busulfan

110 mg/m2 i.v-by vein

Intervention Type DRUG

Cyclophosphamide (Cy)

by vein

Intervention Type DRUG

Tacrolimus (or cyclosporine)

by vein

Intervention Type DRUG

Mycophenolate mofetil (MMF)

given by PO

Intervention Type DRUG

Rabbit ATG

by vein

Intervention Type DRUG

Other Intervention Names

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Fludara™ Cytoxan™ Velcade® Rituxan® Busulfex™ Cytoxan™

Eligibility Criteria

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Inclusion Criteria

1. The first six patients will be ages \>12 years old and \<35 years old. Thereafter in a second stage, patients ages 2 to 50 years old will be included.
2. Patient with a matched related donor or who has a related haploidentical donor identified.
3. Performance score of at least 70 by Karnofsky or 0 to 1 by ECOG (age \> 12 years), or Zubrod or Lansky Play Performance Scale of at least 70 (age \<12 years).
4. Adequate major organ system function as demonstrated by:

1. Serum creatinine clearance equal or more than 50 ml/min (calculated with Cockroft-Gault formula).
2. Bilirubin equal or less than 1.5 mg/dl except for Gilbert's disease. ALT and/or AST equal or less than 3x institutional ULN. Conjugated (direct) bilirubin less than 2x upper limit of normal.
3. Left ventricular ejection fraction equal or greater than 50%.
4. Diffusing capacity for carbon monoxide (DLCO) equal or greater than 50%
5. Predicted, corrected for hemoglobin. For children \< 7 years of age who are unable to perform PFT, oxygen saturation \> 92% on room air by pulse oximetry.
5. Patient or the patient's legal representative, parent(s) or guardian should be able to provide written informed consent. Assent of a minor if participant's age is at least seven and less than eighteen years.
6. Sexually active males and females of childbearing potential must agree to use a form of contraception considered effective and medically acceptable by the Investigator.

Exclusion Criteria

1. HIV positive; active hepatitis B or C.
2. Uncontrolled infections.
3. Liver cirrhosis. However mild fibrosis will be allowed i.e. fine reticulin or Grade 1, with bridging fibrosis.
4. CNS involvement within 3 months.
5. Positive pregnancy test in a woman with child bearing potential defined as not post-menopausal for 12 months or no previous surgical sterilization.
6. Inability to comply with medical therapy or follow-up.
7. Will restrict eligibility to a maximum BMI of ≤40
8. Patient with a known history of allergic reactions to any constituents of the cell product, including a known history of allergic reactions to DMSO.
9. Prior allo-SCT
10. Other active malignancy/cancer diagnosis in remission for at least 2yrs. Malignancies not being excluded are as follows: Ductal carcinoma in situ (DCIS), Basal cell carcinoma (BCC), Cervical intraepithelial neoplasia (CIN)
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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M.D. Anderson Cancer Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Jeremy Ramdial, Ramdial

Role: PRINCIPAL_INVESTIGATOR

M.D. Anderson Cancer Center

Locations

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M D Anderson Cancer Center

Houston, Texas, United States

Site Status

Countries

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United States

Related Links

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http://www.mdanderson.org

M D Anderson Cancer Center

Other Identifiers

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NCI-2022-02150

Identifier Type: OTHER

Identifier Source: secondary_id

2021-0477

Identifier Type: -

Identifier Source: org_study_id

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