A Phase 3 interventional study of Lisaftoclax (APG-2575) and Acalabrutinib in CLL/SLL, sponsored by Ascentage Pharma Group Inc.. Recruiting at 10 sites in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-28.
Sponsored by Ascentage Pharma Group Inc. (part of Ascentage Pharma Group International) · Phase 3, Interventional, and Treatment
This is a global, multicenter, randomized, open-label, Phase III confirmatory study to investigate the efficacy and safety of Lisaftoclax (APG-2575) in combination with Acalabrutinib in patients with newly diagnosed CLL/SLL.
The patients with newly diagnosed CLL/SLL, who have met all required eligibility criteria, will be randomized to the investigational group (Lisaftoclax in combination with Acalabrutinib) or the control group (immunochemotherapy, CIT).
Ascentage Pharma Group Inc. is the lead sponsor of 53 studies on the registry; 31 are open to participants now.
Counted across the registry records on this site, refreshed daily.
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.
The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.
The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.
The study may name a correction formula and a limit in milliseconds, often around 450–480.
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
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.
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
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.
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.
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Measurable disease
The amount of disease can be tracked with a defined measurement, so the study can see whether it shrinks or grows. It might be a tumour measured on a scan or, in some blood cancers such as myeloma, a marker measured in blood or urine.
The criteria or the study team say which measurement counts — having no tumour visible on a scan does not by itself rule you out.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
ECOG performance status
A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.
Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
QT and QTc
On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.
The study may name a correction formula and a limit in milliseconds, often around 450–480.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Childbearing potential
Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).
Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Contraception
Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.
Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.
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.
Biopsy and archival tissue
A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.
Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.
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.
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.
Autoimmune disease
A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.
Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
Lisaftoclax (APG-2575) 600 mg daily plus acalabrutinib 100 mg twice daily for a fixed duration of treatment up to 18 cycles.
Drug: Lisaftoclax (APG-2575) · Drug: Acalabrutinib
FCR: Fludarabine: intravenously infused at 25 mg/m2 /d on Days 1 to 3 of Cycles 1-6 cyclophosphamide: intravenously infused at 250 mg/m2 /d on Days 1 - 3 of Cycles 1 - 6; rituximab: intravenously infused at 375 mg/m2 on C1D1, and at 500 mg/m2 on Day 1 of Cycles 2 - 6. F or R-Clb: Chlorambucil: orally administrated at 0.5 mg/kg on Days 1 and 15 of Cycles 1-6; rituximab: intravenously infused at 375 mg/m2 on C1D1, and at 500 mg/m2 on Day 1 of Cycles 2 - 6.
Drug: Fludarabine · Drug: Cyclophosphamide，CTX · Drug: Rituximab · Drug: Chlorambucil
QD, oral administration, every 28 days for a dosing cycle.
BID, oral administration, every 28 days for a dosing cycle.
Every 28 days for a treatment cycle, administration of 6 cycles.
Every 28 days for a treatment cycle, administration of 6 cycles.
Every 28 days for a treatment cycle, administration of 6 cycles.
Every 28 days for a treatment cycle, administration of 6 cycles.
Progress Free Survival (PFS)
PFS is defined as the time from randomization to disease progression(PD) or death from any cause.
Time frame: Up to 1 year
Objective Response Rate (ORR)
ORR is defined as the proportion of patients who have achieved CR, CRi or PR.
Time frame: Up to 1 year
Minimal Residual Disease (MRD) negativity rate
To observe the proportion of patients with MRD negativity in bone marrow, peripheral blood, either or both.
Time frame: Up to 1 year
Safety evaluation based on the adverse event concurrence
Number of treatment emergent adverse events (TEAEs) and treatment related adverse events (TRAEs) will be evaluated.
Time frame: Up to 1 year
Started Apr 2024 (actual). Primary completion is estimated for Aug 2027, 40 months after the start.
How these figures are worked out, and which studies are left out of them.
Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.
Contact study teamGet an email when the registry record changes — status, dates, results — or when someone posts here.
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Studies of the drugs tested here: Lisaftoclax · Acalabrutinib