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TerminatedNCT03699475THRIVEUpdated Sep 29, 2023Results posted

Study of Haplo-HSCT + Rivogenlecleucel vs Haplo-HSCT + Post Transplant Cyclophosphamide in Patients With AML or MDS

A Phase 2/3 interventional study of rivogenlecleucel and rimiducid in Acute Myeloid Leukemia and Myelodysplastic Syndromes, sponsored by Bellicum Pharmaceuticals. Terminated at 2 sites in United States. Open to participants aged 12 Years to 70 Years. Per ClinicalTrials.gov, last updated 2023-09-29.

Sponsored by Bellicum Pharmaceuticals · Phase 2/3, Interventional, and Treatment

Why this study was terminated
Funding, portfolio re-prioritization
Phase
Phase 2/3
Study type
Interventional
Enrollment
1
Allocation
Randomized
Ages
12 Years to 70 Years
Sex
All
01

Study summary

This study compares the safety and effectiveness of giving rivogenlecleucel (BPX-501 T cells) to patients with AML or MDS post haploidentical hematopoietic stem cell transplant compared to post-transplant cyclophosphamide.

Read the detailed description

In the Phase 2 portion, participants will undergo αβ T cell and CD19+ B cell depleted haploidentical HSCT followed by an infusion of a fixed dose of rivogenlecleucel (BPX-501 T cells) per kg. These participants will be evaluated for prespecified dose limiting toxicities (DLTs) for a 100-day dose limiting toxicity window.

Following completion of the Phase 2 portion, participants will be enrolled and randomized to one of two treatment arms in the Phase 3 portion.

  • Arm A:αβ T-cell and CD19+ B-cell-depleted haplo-HSCT plus treatment with rivogenlecleucel
  • Arm B: haplo-HSCT plus post transplant cyclophosphamide

Pediatric patients ages 12-17 will also be included in US only.

02

Conditions studied

  • Acute Myeloid Leukemia
  • Myelodysplastic Syndromes
03

In context

Leukemia, Myeloid, Acute

3,667 studies on the registry are indexed under Leukemia, Myeloid, Acute; 816 are open to participants now.

This study's enrollment of 1 is below the median of 40 across 3,005 interventional studies indexed under Leukemia, Myeloid, Acute.

Browse Leukemia, Myeloid, Acute studies →

Lead sponsor

Bellicum Pharmaceuticals is the lead sponsor of 15 studies on the registry; none are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 5 (71%) have results posted.

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

04

Who can participate

Ages eligible
12 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

Signed

Meeting institutional criteria to undergo allogenic

Age 18-70 y/o (12-70 y/o in US only)

Patients with AML or MDS as defined below:

AML Patients Patients with intermediate to adverse AML as defined by ELN (Dohner, 2017).

  • AML in first complete remission (CR1) with high-risk features defined as > 1 cycle of induction therapy required to achieve remission OR preceding MDS or myeloproliferative disease
  • AML in CR1 with intermediate-risk features
  • AML in second or subsequent complete response
  • AML with myelodysplasia-related changes (AML-MRC)
  • Therapy related AML in first or subsequent complete remission
  • De novo AML in second or subsequent complete remission

MDS Patients

  • High or very-high risk MDS by IPSS-R classification
  • Intermediate risk or higher MDS patients who failed a hypomethylating agent

Lack of suitable conventional donor (i.e. HLA 10/10 related or unrelated donor)

At least a 5/10 genotypic identical haplotype match

The donor and recipient must be identical, at least one allele of each of the following genetic loci: HLA-A, HLA-B, HLA-C, HLA-DRB1, and HLA-DQB1

Patients with adequate organ function

(ECOG) performance status: 0-2

Exclusion criteria

Exclusion Criteria:

  • HLA 10/10 allele matched (HLA-A,-B,-C,-DRBl, and DQB1) related donor or unrelated donor
  • hematopoietic stem cell transplant ≤ 3 months before enrollment
  • Prior allogeneic transplantation
  • Active CNS involvement by malignant cells (less than 2 months from the conditioning)
  • Current uncontrolled clinically active bacterial, viral or fungal infection
  • Positive serology or viral RNA
  • Pregnancy (positive serum or urine βHCG test) or breast-feeding
  • Fertile men or women unwilling to use effective forms of or abstinence for a year after transplantation
  • Radiographic, histologic, or known history of cirrhosis
  • Overlapping MDS and myeloproliferative neoplasms (MPN) disease
  • Patients with acute promyelocytic leukemia (APL)
  • Known to dimethyl sulfoxide (DMSO)
Terms in these criteria, in plain language(6)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Sequential assignment
Masking
None (open label)
Enrollment
1 participant (actual)

Study arms

  • Experimental
    single-arm Phase II: 3 x 10E6 BPX-501 cell/kg

    Determining the safety of maximum allowable Dose for BPX-501 starting at 3 x 10E6 cells/kg Rimiducid will be administered to inactivate rivogenlecleucel in the event of GVHD not responsive to standard of care treatment

    Biological: rivogenlecleucel · Drug: rimiducid · Procedure: haplo-HSCT

  • Experimental
    phase 3 Arm A: Dose Determined in phase 2 group (never completed)

    αβ T cell and CD19+ B cell-depleted, related haploidentical hematopoietic stem cell transplantation (haplo-HSCT) plus rivogenlecleucel

    Biological: rivogenlecleucel · Drug: rimiducid · Procedure: haplo-HSCT

  • Active comparator
    phase 3 Arm B: dose determined in the phase 2 group (never completed)

    haplo-HSCT followed by post-transplant cyclophosphamide (PTCy) in patients with acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS)

    Drug: Cyclophosphamide · Procedure: haplo-HSCT

Interventions

  • Biological: T cells transduced with caspase 9 safety switch

    Also known as: BPX-501 T cells

  • administered to inactivate rivogenlecleucel in the event of GVHD

    Also known as: AP1903

  • GVHD prophylaxis

    Also known as: Cytoxan

  • Procedurehaplo-HSCT

    treatment for disease

06

What researchers measure

Primary outcomes

  1. Number of Subjects Experiencing 3 or More Dose Limiting Toxicities [Phase 2] Within a 100-day DLT Window After Receiving BPX-501

    If any of the following adverse events that occur within the DLT window they will be considered a DLT: * Grade III or IV acute GVHD attributable to rivogenlecleucel and non-responsive to \> 1 dose of rimiducid treatment (plus standard doses (at least 1 mg/kg) of methylprednisone or dose equivalent of other corticosteroids, and/or calcineurin inhibitor) within 14 days * Grade 3-4 neurologic events attributable to rivogenlecleucel * Death due to any cause other than underlying disease * Any CTCAE Grade 3-5 adverse events related to rivogenlecleucel (including allergic reactions, infusion reactions, and any other related adverse reactions whether expected or unexpected). in case 3 or more DLTs are observed with 3 x 10E6 dose, another cohort would have been enrolled to receive the 1 x 10E6 cell dose (never happened as study terminated early)

    Time frame: 100 days

07

Results

Posted Sep 1, 2023

Participant flow

Participant flow — Overall Study
MilestonePhase II, Cohort 1 (Only Study Arm That the Only Participant Enrolled Into)
Started1
Completed0
Not completed1
Withdrew: Death1

Outcome measures

PrimaryNumber of Subjects Experiencing 3 or More Dose Limiting Toxicities [Phase 2] Within a 100-day DLT Window After Receiving BPX-501

If any of the following adverse events that occur within the DLT window they will be considered a DLT: * Grade III or IV acute GVHD attributable to rivogenlecleucel and non-responsive to \> 1 dose of rimiducid treatment (plus standard doses (at least 1 mg/kg) of methylprednisone or dose equivalent of other corticosteroids, and/or calcineurin inhibitor) within 14 days * Grade 3-4 neurologic events attributable to rivogenlecleucel * Death due to any cause other than underlying disease * Any CTCAE Grade 3-5 adverse events related to rivogenlecleucel (including allergic reactions, infusion reactions, and any other related adverse reactions whether expected or unexpected). in case 3 or more DLTs are observed with 3 x 10E6 dose, another cohort would have been enrolled to receive the 1 x 10E6 cell dose (never happened as study terminated early)

Time frame:
100 days
Reported as:
Count of participants · Participants
Number of Subjects Experiencing 3 or More Dose Limiting Toxicities [Phase 2] Within a 100-day DLT Window After Receiving BPX-501
ParticipantsPhase II, Cohort 1
Number of Subjects Experiencing 3 or More Dose Limiting Toxicities [Phase 2] Within a 100-day DLT Window After Receiving BPX-5011

Adverse events

Collected over from enrolment to 43 days after receiving BPX-501 (subject passed away at this point, study had only enrolled 1 patient). Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Phase II, Cohort 11/1 (100%)1/1 (100%)1/1 (100%)
Most frequent serious events
Most frequent serious events
EventPhase II, Cohort 1
Transplant failureInjury, poisoning and procedural complications1/1
Viral sepsisInfections and infestations1/1
Brain hypoxiaNervous system disorders1/1
Most frequent other events
Most frequent other events
EventPhase II, Cohort 1
CellulitisInfections and infestations1/1

Baseline characteristics

only 1 patient was enrolled in this study

Age, Categorical
Age, Categorical(Participants)Phase II, Cohort 1
<=18 years0
Between 18 and 65 years1
>=65 years0
Age, Continuous
Age, Continuous(years)Phase II, Cohort 1
Median28 (28 to 28)
Sex: Female, Male
Sex: Female, Male(Participants)Phase II, Cohort 1
Female0
Male1
Ethnicity (NIH/OMB)
Ethnicity (NIH/OMB)(Participants)Phase II, Cohort 1
Hispanic or Latino1
Not Hispanic or Latino0
Unknown or Not Reported0
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Phase II, Cohort 1
American Indian or Alaska Native0
Asian0
Native Hawaiian or Other Pacific Islander0
Black or African American0
White1
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)Phase II, Cohort 1
United States1
history of AML in the second or subsequent complete remission
history of AML in the second or subsequent complete remission(Participants)Phase II, Cohort 1
Count of participants1
08

Study locations

2 sites
  • TriStar Bone Marrow Transplant, LLC
    Nashville, Tennessee 37203, United States
  • Methodist Healthcare System of San Antonio Clinical Trials Office
    San Antonio, Texas 78229, United States
09

References and documents

Study documents

PDFs hosted by the registry, ClinicalTrials.gov.

Individual participant data

Plan to share: No

10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 29, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03699475
Lead sponsor
Bellicum Pharmaceuticals
Responsible party
Sponsor
First posted
Oct 9, 2018
Start date
Dec 27, 2018
Primary completion
Jul 23, 2019
Completion
Jul 23, 2019
Results posted
Sep 1, 2023
Last update
Sep 29, 2023

Study contacts

Bellicum Pharmaceuticals
study director · Bellicum Pharmaceuticals, Inc.

Oversight

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

Not currently enrolling

This study is terminated, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: Rivogenlecleucel

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