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NCT Number: NCT06418776

IMPACT-AML: Randomized Pragmatic Clinical Trial for Relapsed or Refractory AML

The primary objective is to evaluate the efficacy and toxicity of high versus low intensity therapy options in patients with refractory forms and early relapses of acute myeloid leukemia (R/R AML) who are scheduled for allogeneic hematopoietic stem cell transplantation (alloHSCT).

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Age ≥ 18 years;
  • Primary refractory AML;
  • Early relapsed AML;
  • A signed informed consent to participate in the study.

Exclusion criteria

  • Late relapsed AML;
  • Isolated extramedullary relapse;
  • MRD relapse without development of bone marrow relapse of AML;
  • Acute promyelocytic leukemia;
  • Previous refractoriness or loss of response during ongoing venetoclax therapy;
  • Previous alloHSCT;
  • Pregnancy and/or lactation period;
  • Refusal of patients with preserved reproductive potential to use highly effective methods of contraception during the period of participation in the study;
  • Lack of signed informed consent to participate in the study;
  • Failure of the subject to follow the study protocol;
  • Participation in any other clinical trial;
  • Uncontrolled infectious complications;
  • ECOG ≥ 3;
  • History of other malignancies within the past 3 years, excluding squamous cell and basal cell skin cancers, carcinoma in situ of the cervix, breast, or other non-invasive malignancies, which, in the opinion of the investigator, are considered adequately treated and have a minimal risk of recurrence within 3 years;
  • Chronic kidney disease with GFR ≤ 30 ml/min/1.73 m2 (according to the CKD-EPI Creatinine Equation);
  • Severe cardiac pathology:
  • uncontrolled arterial hypertension;
  • stable angina III-IV functional classes;
  • unstable angina and/or myocardial infarction less than 6 months before inclusion in the study;
  • heart failure stages IIb-III, NYHA functional classes III-IV
  • uncontrolled cardiac rhythm disturbances (≥ 2 grade CTCAE 5.0) or clinically significant ECG abnormalities.
  • Cirrhosis classes B-C according to the Child-Pugh classification
  • Increased liver function tests above the following values:
  • Total bilirubin > 1,5 above the normal range;
  • AST, ALT > 10 above the normal range.
  • Major surgical interventions underwent less than 14 days before inclusion in the study.

Treatment and study plan

Intensive therapy

Other

Intensive chemotherapy courses (MEC, FLAG, FLAG-Ida, FLAG-Mito)

Low intensity therapy

Other

Low intensity therapy (Aza+Ven, Dac+Ven, LDARA-C+Ven)

Primary outcomes

  1. Event-free survival of patients with R/R AML depending on the use of high or low intensity therapy exposure before alloHSCT

    Time frame: 2 years

    Evaluation method: Kaplan-Meier curves and log-rank test, censored for transplantation

Secondary outcomes

  1. Probability of achieving CR in patients with R/R AML, depending on the use of high or low intensity treatment regimens

    Time frame: 3 months

    Assessment method: Chi-square test

  2. Probability of achieving a response (CR, CR with incomplete hematological recovery, morphologic leukemia- free state, partial remission) in patients with R/R AML, depending on the use of high or low intensity treatment regimens

    Time frame: 3 months

    Assessment method: Chi-square test

  3. Cumulative incidence of alloHSCT in patients with R/R AML, depending on the use of high or low intensity treatment regimens

    Time frame: 2 years

    Evaluation method: cumulative frequency curves and Gray's test

  4. Toxicity of high versus low intensity regimens

    Time frame: 3 months

    Evaluation method: Chi-square test, parametric/nonparametric tests for means

    Variables to be evaluated:

    • Maximum degree and duration of neutropenia and/or thrombocytopenia;
    • Development of uncontrolled/life-threatening infectious complications;
    • Development of life-threatening hemorrhagic complications;
    • Development of severe organ failure.
  5. OS over the entire duration of the study, including follow-up after alloHSCT

    Time frame: 2 years

    Evaluation method: Kaplan-Meier curves and log-rank test

  6. RFS in patients with R/R AML when achieving remission before alloHSCT, depending on the use of high or low intensity treatment regimens

    Time frame: 2 years

    Evaluation method: Kaplan-Meier curves and log-rank test

  7. Relapse incidence in patients with R/R AML when achieving remission before performing alloHSCT, depending on the use of high or low intensity treatment regimens

    Time frame: 2 years

    Evaluation method: cumulative frequency curves and Gray's test

  8. EFS of patients with R/R AML depending on the use of high or low intensity regimens, regardless of alloHSCT

    Time frame: 2 years

    Evaluation method: Farington-Manning test, not censored for transplantation

  9. Statistics on discontinued participation in the protocol and premature withdrawal from the study

    Time frame: 2 years

    Assessment method: Chi-square test

Study contacts

Contact information is provided by the study sponsor or research team.

Anastasia Kashlakova, MD

CONTACT

[email protected]

+79629087553

Elena Parovichnikova, MD

CONTACT

[email protected]

+74956122123

Sponsors and collaborators

Lead sponsor

National Research Center for Hematology, Russia

Network

Collaborators

  • Federal State Budgetary Institution, V. A. Almazov Federal North-West Medical Research Centre, of the Ministry of Health
  • St. Petersburg State Pavlov Medical University

Registry information

Official study title

A Prospective Multicenter Randomized Clinical Trial on the Treatment of Patients With Refractory or Early Relapses of Acute Myeloid Leukemia

Important dates

Study start
2024
Primary completion
2027
Study completion
2029
First posted
May 17, 2024
Registry last updated
May 17, 2024

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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