A Phase 2 interventional study of Lisaftoclax (APG-2575) and homoharringtonine in Acute Myeloid Leukemia (AML), sponsored by Guangdong Second Provincial General Hospital. Enrolling by invitation at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-10.
Sponsored by Guangdong Second Provincial General Hospital · Phase 2, Interventional, and Treatment
Venetoclax (Ven) resistance is common in the treatment of acute myeloid leukemia (AML). Patients with Ven resistance have poor response and survival, except those with specific targeted therapy. Whether we could use new BCL-2 inhibitors to replace Ven and combine with the agents which have been shown to enhance the antilekeumia effect of BCL-2 inhibitors, to overcome Ven resistance? This is unknown up until now. This multi-center, prospective, open-label, single-arm study will evaluate the efficacy and safety of homoharringtonine combined with lisaftoclax and azacitidine (HLA) as salvage therapy for adults with AML after failure of a Ven-containing regimen. Ven treatment failure is defined as no response after at least two consecutive cycles of a Ven-containing regimen or relapse during continued, protocol-compliant Ven-based therapy after a prior response. The study plans to enroll 73 participants. The primary endpoint is the overall response rate after two treatment cycles. Secondary endpoints include complete remission (CR), CR with incomplete blood count recovery (CRi), measurable residual disease (MRD) negativity, survival and relapse, and treatment-related adverse events.
Venetoclax-based regimens are widely used in acute myeloid leukemia, but patients who do not respond or who relapse during continued venetoclax therapy have poor outcomes and limited low-intensity treatment options. Lisaftoclax is a selective BCL-2 inhibitor with clinical activity in myeloid malignancies, including preliminary activity in patients previously exposed to venetoclax. Prior preclinical and clinical work by the study group suggests that homoharringtonine may enhance the antileukemic activity of BCL-2 inhibitor-based therapy.
Participants will receive the HLA regimen in 28-day cycles. Homoharringtonine will be administered at 1 mg/m\^2 by intravenous infusion on Days 1-7. Lisaftoclax will be administered orally at 200 mg on Day 1, 400 mg on Day 2, and 600 mg on Days 3-14. Azacitidine will be administered at 75 mg/m\^2 by subcutaneous injection on Days 1-7. When concomitant use of a strong CYP3A4 inhibitor is required, the lisaftoclax dose will be reduced to 200-400 mg/day.
Response will be assessed using blood counts, bone marrow morphology, and measurable residual disease testing. Bone marrow assessment is planned around Day 14 or Day 28 of each salvage cycle. Participants who achieve complete remission, complete remission with incomplete hematologic recovery, or a morphologic leukemia-free state may proceed to allogeneic hematopoietic stem cell transplantation when feasible or receive further protocol-directed therapy. Participants with partial response or no response after the first cycle may receive a second HLA cycle. Participants with no response after reassessment following the second cycle will discontinue study treatment.
The study will evaluate overall response after two cycles, additional remission outcomes, measurable residual disease negativity, overall survival, relapse-free survival, duration of response, relapse, and safety. Exploratory whole-genome sequencing, RNA sequencing, targeted next-generation sequencing, and single-cell sequencing will be used to characterize biological correlates of response and investigate mechanisms of venetoclax resistance and response to the HLA regimen.
3,667 studies on the registry are indexed under Leukemia, Myeloid, Acute; 816 are open to participants now.
This study's planned enrollment of 73 is above the median of 40 across 3,005 interventional studies indexed under Leukemia, Myeloid, Acute.
Browse Leukemia, Myeloid, Acute studies →Guangdong Second Provincial General Hospital is the lead sponsor of 15 studies on the registry; 11 are open to participants now.
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Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Exclusion Criteria:
Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Creatinine clearance (CrCl)
How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ALT and AST (liver enzymes)
Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.
Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ULN (upper limit of normal)
The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.
“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Bilirubin
A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.
Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Life expectancy
The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Informed consent
Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.
You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Clinically significant
Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis B tests
Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.
Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hepatitis C tests
Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.
After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Cancer (malignancy)
Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.
Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Hypersensitivity
An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
HIV
The human immunodeficiency virus, which weakens the immune system.
Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Participants will receive homoharringtonine, lisaftoclax, and azacitidine in 28-day salvage-treatment cycles. One or two cycles will be administered according to treatment response and eligibility for allogeneic hematopoietic stem cell transplantation, as described in the protocol.
Drug: Lisaftoclax (APG-2575) · Drug: homoharringtonine · Drug: Azacitidine (AZA)
Lisaftoclax will be administered orally on Days 1-14 of each 28-day cycle: 200 mg on Day 1, 400 mg on Day 2, and 600 mg once daily on Days 3-14. If concomitant use of a CYP3A4 inhibitor is required, the protocol specifies a reduced lisaftoclax dose of 200-400 mg/day according to the instruction.
Homoharringtonine will be administered at 1 mg/m\^2 by intravenous infusion once daily on Days 1-7 of each 28-day cycle.
Azacitidine will be administered at 75 mg/m\^2 by subcutaneous injection once daily on Days 1-7 of each 28-day cycle.
Overall Response Rate After Two Cycles of HLA Therapy
The proportion of participants who achieve complete remission (CR), complete remission with incomplete hematologic recovery (CRi), partial remission (PR), or morphologic leukemia-free state (MLFS). CR is defined as bone marrow blasts \<5%, no peripheral blood blasts or extramedullary disease, neutrophils \>=1 x 10\^9/L, and platelets \>=100 x 10\^9/L. CRi is defined as meeting the CR criteria except for neutrophils \<1 x 10\^9/L and/or platelets \<100 x 10\^9/L. PR is defined as a \>60% reduction in bone marrow blasts with bone marrow blasts \<20%. MLFS is defined as bone marrow blasts \<5%, no peripheral blood blasts or extramedullary disease, without a requirement for blood-count recovery.
Time frame: At the end of Cycle 2 (each cycle is 28 days; approximately Day 56)
Composite Complete Remission Rate
The proportion of participants who achieve complete remission or complete remission with incomplete hematologic recovery according to the protocol-defined response criteria.
Time frame: At the end of Cycle 2 (approximately Day 56)
Complete Remission Rate
The proportion of participants who achieve complete remission according to the protocol-defined response criteria.
Time frame: At the end of Cycle 2 (approximately Day 56)
Measurable Residual Disease Negativity Rate
The proportion of responding participants who have a measurable residual disease-negative result according to the standard MRD criteria adopted by the study center with flow cytometry.
Time frame: At response assessment after Cycle 2 (up to approximately Day 56)
Overall Survival
Time from initiation of study treatment to death from any cause. Participants who are alive at the analysis cutoff will be censored on the last date they are known to be alive.
Time frame: From initiation of study treatment through study completion (planned follow-up of at least 12 months)
Relapse-Free Survival
Time from the first documented remission to disease relapse or progression, death from any cause, or the last disease assessment. Participants without an event will be censored at the last disease assessment.
Time frame: From the first documented remission through study completion (planned follow-up of at least 12 months)
Duration of Response
Time from the first documented complete remission or complete remission with incomplete hematologic recovery to loss of that response. Participants without loss of response will be censored at the last valid response assessment.
Time frame: From the first documented CR or CRi through study completion (planned follow-up of at least 12 months)
Cumulative Incidence of Relapse
The cumulative incidence of relapse after remission, with death before relapse treated as a competing event.
Time frame: From the first documented remission through study completion (planned follow-up of at least 12 months)
Adverse Events
The number and proportion of participants with treatment-related hematologic or nonhematologic adverse events, graded according to the National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0
Time frame: From the first HLA dose through the protocol-specified 30-day safety follow-up
Plan to share: Undecided
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Studies of the drug tested here: Lisaftoclax
Guangdong Second Provincial General Hospital