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Acute Myeloid LeukemiaPhase 1/2NCT02743611

Safety & Activity of Controllable PRAME-TCR Therapy in Previously Treated AML/MDS or Metastatic Uveal Melanoma

A Phase 1/2 study testing BPX-701 and Rimiducid in people with Acute Myeloid Leukemia and Myelodysplastic Syndrome, run by Bellicum Pharmaceuticals at 3 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

The purpose of this study is to evaluate the safety and activity of BPX-701 in participants with relapsed AML, previously treated MDS, or metastatic uveal melanoma expressing high levels of PReferentially expressed Antigen in MElanoma (PRAME). Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
BPX-701 and Rimiducid
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
4 participants
Where
3 sitesUnited States
Study dates
14 Apr 2017to 19 Jul 2020
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Signed informed consent
  • Participants in Arm 1:
  • MDS not responding to hypomethylation therapy or recurrence after initial response AML with disease relapse following first complete remission with intermediate or adverse genetics according to the European Leukemia Net criteria. AML participants with prior stem cell transplant must be >100 days post-transplant with no evidence of active graft-versus-host disease and not requiring systemic immunomodulatory or immunosuppressive therapy (>10mg prednisone daily or treatment with a calcineurin inhibitor)
  • Participants in Arm 2:
  • Metastatic uveal melanoma with a radiographically measurable tumor, absolute neutrophil count >/=1000/uL, and platelets >/=75,000/uL
  • HLA-A2.01 positive by local testing
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  • Tumor with positive PRAME expression by central testing
  • Age >/= 18 years
  • Participant has a life expectancy >12 weeks and is able to carry out daily life activities without difficulty (Eastern Cooperative Oncology Group performance status 0 or 1).
  • Participant has adequate venous access for apheresis or agrees to use of a central line for blood collection.
  • Participant does not have significant side effects from previous anticancer treatment.
  • Adequate organ function including absolute lymphocyte count >/=200/uL.
  • Sexually active participants must use medically acceptable methods of contraception for at least 1 year after study treatment.

Who cannot join

  • Participants with AML must not have:
  • Acute promyelocytic leukemia,
  • Primary refractory disease,
  • Uncontrolled disseminated intravascular coagulation,
  • Signs or symptoms of cancer cells in the brain or nervous system,
  • Peripheral blast count >/=20,000/uL
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  • Participants with uveal melanoma must not have an untreated brain tumor
  • Participant has a history of major surgery or treatment with other cancer therapy within 2-4 weeks (1 week for hydroxyurea) before study treatment.
  • Participant has an active, autoimmune disease that requires immunosuppressive therapy. Exceptions are vitiligo, type I diabetes, certain cases of hypothyroidism and psoriasis, or Hashimoto's thyroiditis on a stable dose of thyroid replacement therapy
  • History of clinically significant heart problems.
  • Current severe, uncontrolled systemic disease including an ongoing, active infection requiring treatment with antibiotics within 2 weeks before study treatment.
  • Participant is currently pregnant or breastfeeding.
  • Participant requires chronic, systemic steroid therapy.
  • Participant is positive for Hepatitis B, Hepatitis C, HIV, syphilis, West Nile virus, or Chagas disease.
  • Participant has side effects from earlier cancer treatment that have not resolved

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • Colorado Blood Cancer Institute

    Denver, Colorado, 80218

  • Tennessee Oncology

    Nashville, Tennessee, 37203

  • Oregon Health & Science University

    Portland, Oregon, 97239

Other trials in United States

About this study

Official title: A Phase 1/2 Dose-Finding Study to Evaluate the Safety, Feasibility, and Activity of BPX-701, a Controllable PRAME T-Cell Receptor Therapy, in HLA-A2+ Subjects With AML, Previously Treated MDS, or Metastatic Uveal Melanoma

The purpose of this study is to evaluate the safety and activity of BPX-701 in participants with relapsed AML, previously treated MDS, or metastatic uveal melanoma expressing high levels of PReferentially expressed Antigen in MElanoma (PRAME). Participants' T cells are modified to recognize and target the PRAME tumor marker on cancer cells.

Read the detailed description

The goal of this study is to characterize the safety, feasibility, and clinical activity of BPX-701, a genetically modified autologous T cell product incorporating an HLA-A2-restricted PRAME-directed TCR and a rimiducid-inducible safety switch, when administered to subjects with relapsed AML, previously treated MDS, or metastatic uveal melanoma.

The study will be comprised of multiple parts:

Part 1 (Phase 1): Cell dose escalation to identify the maximum dose of BPX-701 T cells (escalating doses from 1.25 x 10E6 cells/kg up to 5.0 x 10E6 cells/kg to be explored) Parts 2 and 3 (Phase 2): Dose expansion to assess the safety, pharmacodynamics (including BPX-701 T cell persistence and response to rimiducid as applicable), and clinical activity at the recommended dose identified in Part 1 During Parts 1, 2, or 3, rimiducid may be administered following BPX-701 T cell infusion in response to uncontrollable, treatment-emergent toxicity

Being tested
BPX-701, Rimiducid
Keywords
BPX-701, AP1903, rimiducid, AML, MDS, relapsed AML, uveal melanoma, PRAME
Medical subject headings
Leukemia, Myeloid, Acute, Myelodysplastic Syndromes, Uveal Melanoma

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BPX-701Biological

    autologous T cells genetically modified to express the αβ TCR reacting with PRAME peptide/HLA-A2.01 (PRAME TCR) and an inducible safety switch

  • RimiducidDrug

    Also called AP1903

    dimerizer infusion to activate the safety switch and induce apoptosis of the BPX-701 T cells in the event of toxicity

Study groups in NCT02743611
Study groupRoleWhat they receive
Arm 1 Does EscalationExperimentalParticipants with relapsed AML or previously treated MDS will receive an intravenous infusion of BPX-701. Dose escalation of BPX-701 will continue until the recommended cell dose level is reached. Rimiducid may be administered in response to treatment-related toxicity.
Receives: Biological: BPX-701; Drug: Rimiducid
Arm 2 Dose EscalationExperimentalParticipants with metastatic uveal melanoma will receive an intravenous infusion of BPX-701. Dose escalation of BPX-701 will continue until the recommended cell dose level is reached. Rimiducid may be administered in response to treatment-related toxicity.
Receives: Biological: BPX-701; Drug: Rimiducid
Arm 1 Part 2 Dose ExpansionExperimentalParticipants with relapsed AML or previously treated MDS will receive an intravenous infusion of BPX-701 at the recommended cell dose level. Rimiducid may be administered in response to treatment-related toxicity.
Receives: Biological: BPX-701; Drug: Rimiducid
Arm 2 Part 2 Dose ExpansionExperimentalParticipants with metastatic uveal melanoma will receive an intravenous infusion of BPX-701 at the recommended cell dose level. Rimiducid may be administered in response to treatment-related toxicity.
Receives: Biological: BPX-701; Drug: Rimiducid

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Part 1 Arm 1: Dose-limiting Toxicity

    Incidence of dose limiting-toxicity (DLT)

    Measured: 28 days after BPX-701 infusion

  2. Part 1 Arm 1: Treatment-emergent Adverse Events (AEs) and Serious AEs (SAEs)

    Number of participants with AEs and SAEs assessed for severity using CTCAE

    Measured: 15 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Apr 2016 (estimated)
  2. Study start14 Apr 2017
  3. Primary completion19 Jul 2019
  4. Study completion19 Jul 2020

Why it stopped: company decision

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02743611
Sponsor's protocol ID
BP-011
Status last verified
Jun 2023
First submitted
11 Apr 2016
Last updated
5 Oct 2023
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing BPX-701 and Rimiducid in people with Acute Myeloid Leukemia and Myelodysplastic Syndrome, run by Bellicum Pharmaceuticals at 3 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 13 inclusion and 15 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 5 Oct 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 5 Oct 2023). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Part 1 Arm 1: Dose-limiting Toxicity (time frame: 28 days after BPX-701 infusion). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 5 Oct 2023.

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