Clinical trial Recruiting at 5 sites Phase 2 Interventional Ages 18 and up

Asciminib for chronic phase CML with T315I mutation

Official title: Efficacy of Asciminib in Chronic Phase CML Patients With T315I Mutations

Run by University of Jena · NCT07789574 · Data updated 2026-11-12

This study tests asciminib 200 mg twice daily in adults with chronic phase CML and a T315I mutation after stem cell transplant to see if it helps control leukemia.

Quick facts

PhasePhase 2
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment50 (estimated)
SponsorUniversity of Jena
Academic / other
Drugs / interventionsasciminib
Locations10 sites (Aachen and 9 other locations)
StatusRecruiting
StartedNovember 2026
Main results expectedJune 30, 2030
Study endsDecember 31, 2030
Registry record updatedNovember 10, 2026
Trial IDNCT07789574 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults (≥18 years) with BCR-ABL1 T315I–positive CML in first or second chronic phase after allogeneic stem cell transplantation, ECOG ≤2, and acceptable organ function.

Probably not a fit

Patients with prior exposure to asciminib or those with unsuitable cardiac function or other exclusionary conditions may not benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a multicenter, prospective, single-arm phase II trial enrolling about 50 adults with BCR-ABL1 T315I-positive CML in first or second chronic phase after allogeneic stem cell transplantation. All participants receive asciminib 200 mg twice daily and are followed for up to four years, including an enrollment period of ~24 months and at least 24 months of treatment. The study is non-randomized and does not include a control arm. Key safety and efficacy follow-up continues for the full study duration, including post-treatment observation for adverse events. Primary goal is to determine whether asciminib can provide clinical benefit in this specific mutation subset.

Why it matters

Potential benefit: If successful, patients may experience better disease control and symptom relief with asciminib in this mutation-driven CML subset.

How similar studies have gone: Past studies in similar targeted-therapy approaches for T315I-mutant CML have shown signal of activity, but this exact regimen in this setting is limited.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male or female patients with BCR::ABL1 positive CML in first or second chronic phase (i.e. after allogeneic stem cell transplantation) and proven T315I mutations detected by Sanger sequencing or NGS.
* Age ≥ 18 years old (no upper age limit is given)
* ECOG performance status of ≤2.
* Serum levels of potassium, magnesium, total calcium within the normal limits (≥LLN \[lower limit of normal\] and ≤ULN \[upper limit of normal\]). Correction of electrolytes levels with supplements to fulfil enrolment criteria is allowed.
* AST and ALT ≤2.5 x ULN or 5.0 x ULN if considered due to leukemia
* Alkaline phosphatase ≤2.5 x ULN unless considered due to leukemia
* Total bilirubin ≤1.5 x ULN, except known Gilbert disease
* Serum creatinine ≤2 x ULN
* Written informed consent prior to any study procedures being performed

Exclusion Criteria:

* Pre-treatment with asciminib
* BCR::ABL1 variants lacking ABL1 exon a2
* Known impaired cardiac function, including any of the following:

  * Congenital long QT syndrome
  * History of or presence of clinically significant ventricular or atrial tachyarrhythmia
  * QTc \>450 msec on screening ECG
  * Myocardial infarction within 12 months prior to starting therapy
* Other clinically significant heart disease (e.g., unstable angina, congestive heart failure)
* Acute or chronic viral hepatitis with moderate or severe hepatic impairment (Child-Pugh scores \>6), even if controlled
* Other concurrent uncontrolled medical conditions (e.g., active or uncontrolled infections, acute or chronic liver and renal disease) that could cause unacceptable safety risks or compromise compliance with the protocol
* Impaired gastrointestinal function or disease that may alter the absorption of study drug (e.g., ulcerative disease, uncontrolled nausea, vomiting and diarrhea, malabsorption syndrome, small bowel resection or gastric by-pass surgery)
* Known chronic pancreatitis
* Concomitant medications known to be strong inducers or inhibitors of the CYP450 isoenzyme CYP3A4
* Patients who have undergone major surgery ≤2 weeks prior to starting study drug or who have not recovered from side effects of such therapy
* Patients who are pregnant or breastfeeding or women of reproductive potential not employing an effective method of birth control. Women of childbearing potential must have a negative serum pregnancy test within 14 days of study start. Post-menopausal women must be amenorrheic for at least 12 months in order to be considered of non-childbearing potential.
* Male and female patients must agree to employ an effective method of birth control throughout the study and for up to 2 weeks following discontinuation of study drug. (It is required that sexually active men use condom during intercourse while taking the drug and for 2 weeks after stopping treatment and not father a child in this period. A condom is required to be used also by vasectomized men in order to prevent delivery of the drug via seminal fluid. Female partners of male patients must be advised to use highly effective methods of contraception.)
* Known diagnosis of human immunodeficiency virus (HIV) infection (HIV testing is not mandatory)
* Active autoimmune disorder, including autoimmune hepatitis
* Patients with a history of another primary malignancy that is currently clinically significant or currently requires active intervention
* hypersensitivity to the active ingredient asciminib or to any of the other ingredients listed according to the latest version of the SmPC
* Patients unwilling or unable to comply with the protocol.

Where it's running

  • Uniklinik der RWTH Aachen
    Aachen, Germany
    Recruiting
  • Universitätsklinikum Jena
    Jena, Germany
    Recruiting
  • Universitätsklinikum Leipzig AöR
    Leipzig, Germany
    Recruiting
  • Medizinische Fakultät Mannheim der Universität Heidelberg
    Mannheim, Germany
    Recruiting
  • Universitätsklinikum Ulm
    Ulm, Germany
    Recruiting
  • Charite CVK
    Berlin, Germany
    Not yet recruiting
Show 4 more locations
  • Klinikum Chemnitz gGmbH
    Chemnitz, Germany
    Not yet recruiting
  • Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden
    Dresden, Germany
    Not yet recruiting
  • Universitätsklinikum Hamburg-Eppendorf
    Hamburg, Germany
    Not yet recruiting
  • Medizinische Hochschule Hannover
    Hanover, Germany
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.