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Taking people in UzbekistanPhase 1

Tests lonitoclax with azacitidine in adults with acute myeloid leukemia

Tests lonitoclax with azacitidine in adults with relapsed or refractory acute myeloid leukemia.

Key facts

Who runs it
Lomond Therapeutics Holdings, Inc.
Where
Tashkent, UzbekistanSee the siteAlso in 1 other country, 5 sites
Trial code
Registry title
A Phase 1b Study of Lonitoclax + Azacitidine in Acute Myeloid Leukemia Patients
Status
Recruiting
Phase
Phase 1
People taking part
66 people, planned
Started
14 Nov 2025
Expected to end
Jul 2027
Type of study
Interventional, 8 groups
Treatments tested
  • ZE50-0134
  • Azacitidine Days 1-7
  • ZE 50-0134
Record updated
31 August 2026

Who can take part

AI summary

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for adults whose acute myeloid leukemia (AML) has come back or has not responded to treatment, to test Lonitoclax with azacitidine.

Age
18 years and older
Sex
All sexes can join.
Disease stage
Acute myeloid leukemia that has come back (relapsed) or has not responded to treatment (refractory). Blood or bone marrow must be involved.
Earlier treatment
Earlier treatment with a hypomethylating agent or Venetoclax is allowed. Cannot have had another investigational drug within 5 half-lives of that drug (or 1 week if unknown). Cannot have had anti-cancer drug treatment or radiation within 1 week before starting, except hydroxyurea.
Biomarker or test result
White blood count must be below 25 × 10^9/L when Lonitoclax starts; hydroxyurea can be used to reach this level.

Main reasons for not taking part

  • Acute promyelocytic leukemia (FAB M3) or isolated myeloid sarcoma
  • Active leukemia in the central nervous system
  • Known active HIV, hepatitis B or hepatitis C infection
  • Pregnant or breastfeeding women
  • Serious heart problems, QTcF above 470 msec that cannot be corrected, or uncontrolled infection

The registry criteria, word for word

Show all 20 criteriaShow less

Who can take part

  • Patients must be able to understand and provide written informed consent. 2. AML patients: For the dose escalation and expansion, patients aged 18 and older with relapsed and/or refractory AML would be eligible. Prior treatment with a hypomethylating agent or Venetoclax is allowed
  • At the time of Lonitoclax initiation, white blood count (WBC) needs to be < 25 × 109/L: Hydroxyurea can be used to achieve that level
  • Eastern Cooperative Oncology Group (ECOG) performance status 0, 1, or 2. 5. Adequate organ function as defined by the following:
  • Aspartate aminotransferase (AST) ≤ 2.5 x upper limit of normal (ULN), alanine aminotransferase (ALT) ≤ 2.5 x ULN. AST and/or ALT may be up to 5 x ULN if thought to be secondary to leukemia
  • Total bilirubin ≤ 1.5 x ULN (patients with known Gilbert's syndrome may enroll if direct bilirubin is ≤ 3 x ULN) for the local laboratory
  • Estimated Glomerular Filtration Rate (eGFR) according to the Chronic Kidney Disease Epidemiology Collaboration (CDK-EPI) ≥ 60 mL/min/1.73m2 for the local laboratory; Female patients of childbearing potential must agree to use a highly effective method of contraception from screening visit until 120 days following the last dose of study treatment. Highly effective methods of contraception include sexual abstinence, bilateral tubal ligation, tricycle combined (estrogen and progestogen containing) oral or transdermal hormonal contraceptives, intrauterine devices and vasectomized partner. Should a woman become pregnant or suspect she is pregnant while she is participating in this study, she should inform her treating physician immediately; Male patients capable of having intercourse with females of childbearing potential must agree to abstain from heterosexual intercourse or have their partner use highly effective contraception from the screening visit until 120 days until the last dose of study treatment, and themselves use barrier contraception (i.e., condoms). They must also refrain from sperm donation from the screening visit until 120 days following the last dose of study treatment. Should his partner become pregnant or suspect she is pregnant while he is participating in this study, he should inform his treating physician immediately; Patients must be able to take oral medications. Exclusion Criteria; Isolated myeloid sarcoma (meaning, patients must have blood or marrow involvement with AML); Acute promyelocytic leukemia (FAB M3); Active central nervous system (CNS) involvement by AML; Clinical signs/symptoms of leukostasis requiring urgent therapy; Known active infection with Human Immunodeficiency Virus (HIV), hepatitis B or hepatitis C. Patients with a history of positive serology for hepatitis B or C require a negative Polymerase chain reaction (PCR) test for virus to go onto therapy; Disseminated intravascular coagulopathy with active bleeding or signs of thrombosis; Patients who have received an investigational agent (for any indication) within 5 half-lives of the agent; if the half-life of the agent is unknown, patients must wait 1 week prior to first dose of study treatment. An investigational agent is one for which there is no approved indication by Regulatory Authorities; Systemic antineoplastic therapy within 1 week (or 5 half-lives of drug received, whichever is shorter) or radiation therapy within 1 week prior to starting protocol except for hydroxyurea, which is allowed to control white blood cell counts; Female patients who are pregnant or lactating; Patients with psychological, familial, social, or geographic factors, other significant medical condition, laboratory abnormality that otherwise preclude them from giving informed consent, following the protocol, potentially hamper compliance with study treatment and follow-up or would confound the interpretation of the results of the trial; Concomitant medications that are strong CYP3A4 inducers; Patients with QTcF > 470 msec that cannot be corrected with electrolyte replacement, hydration, or medication modifications. This does not apply to patients with a pacemaker as measurement of QTc is not accurate under such conditions and bears no risk to patients since they are being medically paced by their device; Patients with the following will be excluded: uncontrolled intercurrent illness including, but not limited to, symptomatic congestive heart failure, unstable angina pectoris, serious cardiac arrhythmia, myocardial infarction with evidence of residual abnormalities within 6 months prior to enrollment (Troponin leak alone not included if no residual dysfunction), familial QT prolongation, known potassium wasting syndrome (Bartter syndrome, Gitelman syndrome, and Liddle syndrome), New York Heart Association (NYHA) Class III or IV heart failure, electrocardiographic evidence of acute ischemia or active conduction system abnormalities. Patients with medical comorbidities that will preclude safety evaluation of the combination should not be enrolled; As infection is a common feature of AML, patients with active infection are permitted to enroll provided that the infection is under control. Patients with uncontrolled infection shall not be enrolled until infection is treated and brought under control

Who cannot take part

  • Clinical signs/symptoms of leukostasis requiring urgent therapy
  • Patients who have received an investigational agent (for any indication) within 5 half-lives of the agent; if the half-life of the agent is unknown, patients must wait 1 week prior to first dose of study treatment. An investigational agent is one for which there is no approved indication by Regulatory Authorities
  • Concomitant medications that are strong CYP3A4 inducers
  • Known active infection with Human Immunodeficiency Virus (HIV), hepatitis B or hepatitis C. Patients with a history of positive serology for hepatitis B or C require a negative Polymerase chain reaction (PCR) test for virus to go onto therapy
  • Disseminated intravascular coagulopathy with active bleeding or signs of thrombosis
  • As infection is a common feature of AML, patients with active infection are permitted to enroll provided that the infection is under control. Patients with uncontrolled infection shall not be enrolled until infection is treated and brought under control
  • Systemic antineoplastic therapy within 1 week (or 5 half-lives of drug received, whichever is shorter) or radiation therapy within 1 week prior to starting protocol except for hydroxyurea, which is allowed to control white blood cell counts
  • Patients with psychological, familial, social, or geographic factors, other significant medical condition, laboratory abnormality that otherwise preclude them from giving informed consent, following the protocol, potentially hamper compliance with study treatment and follow-up or would confound the interpretation of the results of the trial
  • Patients with QTcF > 470 msec that cannot be corrected with electrolyte replacement, hydration, or medication modifications. This does not apply to patients with a pacemaker as measurement of QTc is not accurate under such conditions and bears no risk to patients since they are being medically paced by their device
  • Patients with the following will be excluded: uncontrolled intercurrent illness including, but not limited to, symptomatic congestive heart failure, unstable angina pectoris, serious cardiac arrhythmia, myocardial infarction with evidence of residual abnormalities within 6 months prior to enrollment (Troponin leak alone not included if no residual dysfunction), familial QT prolongation, known potassium wasting syndrome (Bartter syndrome, Gitelman syndrome, and Liddle syndrome), New York Heart Association (NYHA) Class III or IV heart failure, electrocardiographic evidence of acute ischemia or active conduction system abnormalities. Patients with medical comorbidities that will preclude safety evaluation of the combination should not be enrolled
  • Isolated myeloid sarcoma (meaning, patients must have blood or marrow involvement with AML)
  • Acute promyelocytic leukemia (FAB M3)
  • Active central nervous system (CNS) involvement by AML
  • Female patients who are pregnant or lactating

Where in Uzbekistan

Also in 1 other country, 5 sites

  • Republican Specialized Scientific and Practical Medical Center of Hematology of the Ministry of HealthTashkent, UzbekistanContact: Ekaterina DokukinaTaking people

About the trial

What the trial wants to find out

This is a clinical study aiming to evaluate the safety, pharmacokinetics, pharmacodynamics, and preliminary efficacy of ZE50-0134 in relapsed and refractory Acute Myeloid Leukemia patients.

The 8 groups in the trial

  • ZE50-0134 + Azacitidine Dose Level -1Treatment being tested

    Optional and would only be performed Dose Level 1 is poorly tolerated.

    Treatment: Azacitidine Days 1-7 and ZE 50-0134

  • ZE50-0134 + Azacitidine Dose Level 1Treatment being tested

    Treatment: ZE50-0134 and Azacitidine Days 1-7

  • ZE50-0134 + Azacitidine Dose Level 2Treatment being tested

    Treatment: ZE50-0134 and Azacitidine Days 1-7

  • ZE50-0134 + Azacitidine Dose Level 3Treatment being tested

    Treatment: ZE50-0134 and Azacitidine Days 1-7

  • ZE50-0134 + Azacitidine Dose Level 4Treatment being tested

    Treatment: ZE50-0134 and Azacitidine Days 1-7

  • ZE50-0134 + Azacitidine Dose Level 5Treatment being tested

    Treatment: ZE50-0134 and Azacitidine Days 1-7

  • ZE50-0134 + Azacitidine Selected dose 1Treatment being tested

    The doses used in Part 2 of the study will be determined based on the data from Part 1 of the study.

    Treatment: ZE50-0134 and Azacitidine Days 1-7

  • ZE50-0134 + Azacitidine Selected dose 2Treatment being tested

    The doses used in Part 2 of the study will be determined based on the data from Part 1 of the study.

    Treatment: ZE50-0134 and Azacitidine Days 1-7

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
A Phase 1b Study of Lonitoclax + Azacitidine (Aza) in Acute Myeloid Leukemia (AML) Patients
Plain-language title
Tests lonitoclax with azacitidine in adults with acute myeloid leukemiaGenerated from the registry record. The registry title is the official one.
AI summary
From the trial's eligibility criteria. Read by machine on 12 November 2026.
Record updated
31 August 2026