A Study of BTX-A51 in People With Relapsed or Refractory Acute Myeloid Leukemia or High-Risk Myelodysplastic Syndrome

  • STATUS
    Recruiting
  • End date
    Mar 19, 2025
  • participants needed
    50
  • sponsor
    BioTheryX, Inc.
Updated on 7 October 2022
myeloid leukemia
leukemia
refractory acute myeloid leukemia (aml)

Summary

This is an open-label, dose escalation study to evaluate the safety, toxicity, and pharmacokinetics (PK) as well as preliminary efficacy of BTX-A51 capsules in participants with relapsed or refractory acute myeloid leukemia (AML) or high-risk myelodysplastic syndrome (MDS).

The study will be done in two phases. Phase 1a of this study is designed to determine the dose-limiting toxicities (DLTs) and maximum tolerated dose (MTD) of orally administered BTX-A51 in up to 35 participants who are evaluable for toxicity. Once the MTD is determined, it is planned that an additional 15 participants will be enrolled in Phase 1b of this study for additional experience with safety and efficacy, and to determine the recommended Phase 2 dose (RP2D) which may or may not be different from the MTD.

Continued treatment will be available under this study protocol for up to eight 28-day cycles (Continued Treatment Phase) if the Investigator judges the benefit outweighs the risk.

Once BTX-A51 treatment has completed, participants will be contacted by telephone every 3 months for up to 2 years after their last treatment for survival status and anticancer therapy (Overall Survival Follow-up).

Details
Condition Acute Myeloid Leukemia, Myelodysplastic Syndrome
Treatment BTX-A51
Clinical Study IdentifierNCT04243785
SponsorBioTheryX, Inc.
Last Modified on7 October 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Demonstration of understanding and voluntarily signing of an informed consent form
Age ≥ 18 years
Diagnosis of acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) according to the World Health Organization classification and, with respect to MDS, that is high risk; participants must have refractory or relapsed disease and be ineligible for or have exhausted standard therapeutic options that would otherwise be likely to provide clinical benefit
Eastern Cooperative Oncology Group performance status ≤ 2 and life expectancy of ≥ 6 weeks
Adequate organ function (Grade 1 serum creatinine; Grade 1 total bilirubin; aspartate aminotransferase and/or alanine transaminase ≤ 2 × ULN)
Females of childbearing age must not be pregnant at time of Screening/beginning of treatment and agree to either abstain from sexual intercourse or use highly effective methods of contraception (for up to 3 months after last dose of study drug)
Males sexually active with a woman of childbearing age must agree to use barrier method of birth control during and after the study (up to 3 months after last dose of study drug)

Exclusion Criteria

Diagnosis of acute promyelocytic leukemia
White blood cell count > 20 x 10^9/L
Receipt of cancer chemotherapy (other than hydroxyurea) within 2 weeks prior to the start of study drug
In participants who have undergone autologous or allogeneic stem cell transplantation: transplantation within the 3 months prior to Screening; active graft-versus-host disease requiring anything other than topical corticosteroids and budesonide; treatment with systemic immunosuppressive medications including high-dose steroids (≥ 20 mg prednisolone or equivalent per day), or calcineurin inhibitors (e.g., cyclosporine, tacrolimus) for at least 1 week prior to Screening, and sirolimus, mycophenylate mofetil, azathioprine, or ruxolitinib for at least 2 weeks prior to Screening
Immediate life-threatening severe complications of leukemia such as uncontrolled bleeding, pneumonia with hypoxia or shock, and/or disseminated intravascular coagulation
Persistent toxicities from prior treatment of Grade 2 or higher
Active uncontrolled systemic fungal, bacterial, mycobacterial, or viral infection
Clinically significant cardiac disease
Known dysphagia, short-gut syndrome, gastroparesis, or other conditions that limit the ingestion or gastrointestinal absorption of drugs administered orally
Any other concurrent medical condition or disease that is likely to interfere with study procedures or results, or that, in the opinion of the Investigator, would constitute a hazard for participating in this study
If female, pregnant or breastfeeding
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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