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WithdrawnNCT02487459Updated Oct 5, 2020

Safety Study of Gene Modified Donor T-Cells in Adults With Advanced Hematologic Malignancies

A Phase 1 interventional study of BPX-501 and AP1903 in Hematologic Malignancies, sponsored by Bellicum Pharmaceuticals. Withdrawn at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2020-10-05.

Sponsored by Bellicum Pharmaceuticals · Phase 1, Interventional, and Treatment

Phase
Phase 1
Study type
Interventional
Enrollment
0
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

This is an open-label, non-randomized study to evaluate the safety of two planned infusions of BPX-501 T cells after partially mismatched, related (haploidentical) HSCT in adults with hematologic malignancies.

Read the detailed description

The objective is to evaluate the safety of two planned infusions of BPX-501 after partially mismatched, related HSCT with post-transplant cyclophosphamide and to evaluate the safety and efficacy of the treatment of dimerizer drug, rimiducid (AP1903), to subjects who received BPX-501 and have uncontrolled GvHD. Assuming no toxicity, enrollment will proceed sequentially for the initial 9 patients (following the 3+3 design), who will be followed for 100 days, prior to enrolling the subsequent 31 patients. Toxicity may increase the number of initial group of patients). As multiple dose levels may be administered among the first 9 (or more) patients, toxicity will be assessed on the cohort with the maximum tolerated dose (MTD).

The Medical Monitoring committee will review the data with the investigators and determine whether to proceed and or implement any changes to the protocol

BPX-501 contains genetically modified donor T cells that have an inducible safety switch iCasp9 suicide gene. In the event of acute GvHD, administration of rimiducid dimerizes and activates caspase 9; this activates downstream caspases, obligating cellular apoptosis within 24 hours.

02

Conditions studied

  • Hematologic Malignancies

Keywords

  • acute lymphoblastic leukemia
  • acute myeloid leukemia
  • chronic myeloid leukemia
  • myelodysplastic syndrome
  • non-hodgkin lymphoma
  • hodgkin lymphoma
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In context

Neoplasms

9,359 studies on the registry are indexed under Neoplasms; 2,486 are open to participants now.

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Lead sponsor

Bellicum Pharmaceuticals is the lead sponsor of 14 studies on the registry; none are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 5 (83%) have results posted.

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

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. Signed informed consent
  2. Patients with one of the life-threatening hematological malignancies:

    • Acute lymphocytic leukemia (ALL) in CR1 with high-risk features including adverse cytogenetics such as t(9;22), t(1;19), t(4;11), or MLL gene rearrangements; greater than 1 cycle to achiever remission or with persistent MRD; ALL in second or greater remission with or without MRD. Acute myeloid leukemia (AML) in CR1 with high-risk features defined as: Greater than 1 cycle of induction therapy required to achieve remission; Preceding myelodysplastic syndrome (MDS) or myeloproliferative disease; Presence of FLT3 mutations or internal tandem duplications; FAB M6 or M7 classification; Adverse cytogenetics, -5, del 5q, -7, del7q, abnormalities involving 3q, 9q, 11q, 20q, 21q, 17, +8 [> 3 abnormalities];
    • AML in second or greater remission, primary induction failure and patients with relapsed disease;
    • Advanced chronic myeloid leukemia (CML) who have progressed to blast phase or accelerated phase and are in need of a transplant and do not have an HLA matched donor;
    • MDS with IPSS intermediate-2 or higher or therapy-related MDS.Hodgkin lymphoma or Non-Hodgkin lymphoma (NHL): relapsed disease where remission duration is less than 1 year, relapse after previous autologous transplant, or failure to achieve CR with chemotherapy.
  3. Age ≥ 18 years and ≤ 65 years
  4. Deemed eligible for allogeneic stem cell transplantation
  5. Lack of suitable conventional donor (i.e. 8/8 related or unrelated donor) or presence of rapidly progressive disease not permitting time to identify an unrelated donor
  6. HLA typing will be performed at high resolution (allele level) for the HLA-A, -B, Cw, and DRBl loci

    • A minimum genotypic identical haplotype match of 4/8 is required
    • The donor and recipient must be identical, as determined by high resolution typing, at least one allele of each of the following genetic loci: HLA-A, HLA-B, HLA-Cw, and HLA- DRB1
  7. Subjects with adequate organs function as measured by:

    • Cardiac: Left ventricular ejection fraction at rest must be >45%
    • Pulmonary: FEV 1, FVC, DLCO (diffusion capacity) > 50% predicted (corrected for hemoglobin); or O2 saturation > 92% on room air
    • Hepatic: Direct bilirubin ≤ 3 x upper limit of normal (ULN), or AST/ALT ≤ 5 x ULN
    • Renal: Serum creatinine within normal range for age or creatinine clearance, or with a recommended GFR ≥ 50 mL/min/1.73m2
  8. Performance status: Karnofsky ≥ 80%

Exclusion criteria

Exclusion Criteria:

  1. HLA 8/8 allele matched (HLA-A,-B,-Cw,-DRBl) related or unrelated donor able to donate;
  2. Autologous hematopoietic stem cell transplant ≤ 3 months prior to enrollment;
  3. Prior allogeneic transplantation;
  4. Active CNS involvement by malignant cells (less than 2 months from the conditioning);
  5. Current uncontrolled bacterial, viral or fungal infection (currently taking medication with evidence of progression of clinical symptoms or radiologic findings); the PI is the final arbiter of this criterion;
  6. Positive HIV serology or viral RNA (≥ Grade III per CTCAE criteria);
  7. Pregnancy (positive serum or urine βHCG test) or breast-feeding;
  8. Fertile men or women unwilling to use effective forms of birth control or abstinence for a year after transplantation;
  9. Bovine product allergy.
  10. Severe obesity (patient's weight is >/= 1.5x the donor weight).
05

Study design

Phase
Phase 1
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
0 participants (actual)

Study arms

  • Experimental
    BPX-501 and AP1903

    Three cohorts, 3 patients each, will receive two infusions (at the same dose) of BPX-501. If needed to treat aGVHD, a single dose of AP1903 will be administered IV.

    Biological: BPX-501 · Drug: AP1903

Interventions

  • BiologicalBPX-501

    T cells transduced with CaspaCIDe suicide gene

  • DrugAP1903

    dimerizer drug administered to treat GVHD

    Also known as: Rimiducid

06

What researchers measure

Primary outcomes

  1. Adverse events

    Number of adverse events after BPX-501 as a measure of safety

    Time frame: 2 years

Secondary outcomes

  1. Adverse events

    Number of adverse events after AP1903 as a measure of safety

    Time frame: 48 hours

07

Study locations

1 site
  • MD Anderson Cancer Center
    Houston, Texas 77030, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 5, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02487459
Lead sponsor
Bellicum Pharmaceuticals
Responsible party
Sponsor
First posted
Jul 1, 2015
Start date
Jul 2016
Primary completion
Jun 2017
Completion
Jun 2017
Last update
Oct 5, 2020

Study contacts

Bellicum Pharmaceuticals
study director · Bellicum Pharmaceuticals, Inc.

Oversight

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

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This study is withdrawn, as verified in Oct 2020. You cannot join it, but the record below documents what was studied.

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