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Lisaftoclax

Phase 3

CLL/SLL | Small molecule | Hematology |Ascentage Pharma Group International - American Depository Shares|Trials Updated: Oct 13, 2026

Lisaftoclax development status

Highest phase Phase 3
Registered trials 2 across 2 sponsors since Jan 2020

Lisaftoclax target and mechanism

Molecular targetBcl-2
Target classProtein
ModalitySmall molecule

Also known as Lisaftoclax (APG-2575)

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLED
Total Trials5
Total Enrollment2,060

FDA Designations

No designations recorded

Lisaftoclax clinical trials

Lisaftoclax · 5 trials · 4 indications

Phase 3 3Phase 1 2
NCT06641414Lisaftoclax (APG-2575) Combined With Azacytidine (AZA) in the Treatment of Patients With Higher-risk Myelodysplastic Syndrome (GLORA-4).Higher-risk Myelodysplastic Syndrome
RECRUITING490 Analytics
NCT06319456A Study of Lisaftoclax (APG-2575) Combined With Acalabrutinib Versus Immunochemotherapy for Newly Diagnosed CLL/SLL.CLL/SLL
RECRUITING344 Analytics
NCT06104566Global Trial in APG2575 for Patients With CLL/SLLCLL/SLL
RECRUITING400 Analytics
PHASE3RECRUITING
Lisaftoclax (APG-2575) Combined With Azacytidine (AZA) in the Treatment of Patients With Higher-risk Myelodysplastic Syndrome (GLORA-4).
Higher-risk Myelodysplastic SyndromeUnlock trial analytics
PHASE3RECRUITING
A Study of Lisaftoclax (APG-2575) Combined With Acalabrutinib Versus Immunochemotherapy for Newly Diagnosed CLL/SLL.
CLL/SLLUnlock trial analytics
PHASE3RECRUITING
Global Trial in APG2575 for Patients With CLL/SLL
CLL/SLLUnlock trial analytics

Study Endpoints

Primary Endpoints

Overall Survival(OS)
Up to 5 years

The primary endpoint was overall survival (OS), defined as the time from the date of randomization to the date of death of any cause.

Progress Free Survival (PFS)
Up to 1 year

PFS is defined as the time from randomization to disease progression(PD) or death from any cause.

PFS
12 months

To evaluate the progression-free survival (PFS) of lisaftoclax in combination with BTKi compared with BTKi monotherapy in CLL/SLL patients previously treated with BTKi as determined by independent radiological review committee (IRC) using the iwCLL guidelines

Dose Limiting Toxicities (DLT)
28 days

DLT will be graded according to NCI CTCAE Version 5.0. DLT will be defined as clinically significant drug-related adverse events during cycle one.

Maximum Tolerated Dose (MTD)/Recommended Phase 2 Dose(RP2D)
28 days

MTD/RP2D will be determined based on DLTs observed during cycle one.

Primary Toxicity Endpoint: dose limiting toxicity (DLT)
42 days

DLT will be defined based on the rate of drug-related grade 3-5 adverse events experienced within the first 6 weeks (2 cycles) of study treatment. These will be assessed via CTCAE version 5.0

Maximally tolerated dose (MTD)
42 days

MTD will be determined based on DLTs observed during the first 6 weeks (2 cycles) of study treatment

Secondary Endpoints

Safety evaluation based on the adverse event concurrence
Up to 5 years
Objective Response Rate (ORR)
Up to 1 year
Minimal Residual Disease (MRD) negativity rate
Up to 1 year
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Study Design & Arms

AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Lisaftoclax (APG-2575) combined with AzacitidineEXPERIMENTAL -
Placebo combined with AzacitidineACTIVE_COMPARATORDrug: azacitidine injection QD: hypodermic or intravenous injection
Lisaftoclax (APG-2575) combined with AcalabrutinibEXPERIMENTALLisaftoclax (APG-2575) 600 mg daily plus acalabrutinib 100 mg twice daily for a fixed duration of treatment up to 18 cycles.
Immunochemotherapy regimensACTIVE_COMPARATORFCR: 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.
Arm 1ACTIVE_COMPARATORCombination therapy
Arm 2ACTIVE_COMPARATORmono therapy
Lisaftoclax (APG-2575) single agentEXPERIMENTALLisaftoclax (APG-2575) orally once daily starting from 200mg and will be increased in subsequent cohorts to 400mg, 600mg, 800mg, to determine the MTD/RP2D.
Lisaftoclax (APG-2575)+reduced-dose HHTEXPERIMENTALLisaftoclax (APG-2575) MTD/RP2D-1 and MTD/RP2D combines with reduced-dose HHT in R/R AML, MPAL, BPDCN, CMML.
Lisaftoclax (APG-2575)+ standard-dose HHTEXPERIMENTALLisaftoclax (APG-2575) MTD/RP2D-1 and MTD/RP2D combines with standard-dose HHT in R/R AML, MPAL, BPDCN, CMML.
Lisaftoclax (APG-2575)+ AZAEXPERIMENTALLisaftoclax (APG-2575) MTD/RP2D-1 and MTD/RP2D combines with AZA in R/R AML, MPAL, BPDCN, CMML.
Lisaftoclax (APG-2575)+ AZA(HR-MDS.)EXPERIMENTALLisaftoclax (APG-2575) MTD/RP2D-1 and MTD/RP2D combines with AZA in HR-MDS.
Lisaftoclax (APG-2575)+ AZA(Naïve AML.)EXPERIMENTALLisaftoclax (APG-2575) MTD/RP2D-1 and MTD/RP2D combines with AZA in treatment naïve AML.
Lisaftoclax (APG-2575)+AZA+OlverembatinibEXPERIMENTALLisaftoclax (APG-2575) combines with AZA and Olverembatinib in R/R AML.
Lisaftoclax (APG-2575)+HHT+OlverembatinibEXPERIMENTALLisaftoclax (APG-2575) combines with HHT and Olverembatinib in R/R AML.
Lisaftoclax 400mgEXPERIMENTALLisaftoclax 400mg ramp up
Lisaftoclax 600mgEXPERIMENTALLisaftoclax 600mg ramp up
Lisaftoclax 800mgEXPERIMENTALLisaftoclax 800mg ramp up
Lisaftoclax 1000mgEXPERIMENTALLisaftoclax 1,000mg ramp up

Interventions

NameTypeDescription
Lisaftoclax (APG-2575)DRUGQD, oral administration.
Azacitidine InjectionDRUGQD, hypodermic or intravenous injection.
PlaceboOTHERQD, oral administration.
AcalabrutinibDRUGBID, oral administration, every 28 days for a dosing cycle.
FludarabineDRUGEvery 28 days for a treatment cycle, administration of 6 cycles.
Cyclophosphamide,CTXDRUGEvery 28 days for a treatment cycle, administration of 6 cycles.
RituximabDRUGEvery 28 days for a treatment cycle, administration of 6 cycles.
ChlorambucilDRUGEvery 28 days for a treatment cycle, administration of 6 cycles.
lisaftoclax +BTK inhibitorDRUGlisaftolax + BTK inhibitor
BTK inhibitorDRUGBTK inhibitor
Reduced-dose HHTDRUG1mg IV QD on Days 1-14 (28-day cycle).
standard-dose HHTDRUG2mg/m\^2 IV QD on Days 1-7 (28-day cycle).
AzacitidineDRUG75 mg/m\^2 SC or Iv gtt QD on Days 1- 7 (28-day cycle).
olverembatinibDRUGorally, with meals, QOD, every 28 days as a cycle.
LisaftoclaxDRUGLisaftoclax investigation drug in ramp up dosing
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites155

Inclusion Criteria: 1. Newly diagnosed higher-risk MDS. 2. ECOG score of ≤2. 3. Expected survival ≥ 3 months. 4. Adequate organ function. 5. Female subjects of potential childbearing potential have a negative urine or serum pregnancy test before dosing. Subjects of childbearing potential as well as...

Countries:United StatesAustraliaBelgiumBulgariaCanadaChinaCzechiaFinlandFranceGermanyGreeceHungaryItalyNorwayPolandSpainSwedenUnited KingdomIndiaIsraelRomaniaRussiaSlovakiaTurkey (Türkiye)
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Recent Changes (Last 90 Days)

LOWOct 13, 2026NCT06641414lastUpdatePostDate: changed
LOWOct 13, 2026NCT06641414lastUpdatePostDate: changed
MEDIUMAug 1, 2026NCT04501120Enrollment: 458 → 682
MEDIUMAug 1, 2026NCT04215809primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT06641414primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT06104566primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT06319456primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT04501120Enrollment: 458 → 682
MEDIUMAug 1, 2026NCT06104566primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT04215809primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT06641414primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT06319456primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT04215809primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT06641414primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT06319456primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT04501120Enrollment: 458 → 682
MEDIUMAug 1, 2026NCT06104566primaryCompletionDate: changed

Frequently asked questions about Lisaftoclax

What is lisaftoclax used for?

Lisaftoclax is an investigational small molecule being studied in hematologic malignancies, including chronic lymphocytic leukemia and small lymphocytic lymphoma, higher-risk myelodysplastic syndrome, and relapsed or refractory acute myeloid leukemia. It is not yet approved and remains in clinical development.

What does lisaftoclax target?

Lisaftoclax targets Bcl-2, a protein that regulates apoptosis. By inhibiting Bcl-2, lisaftoclax is designed to restore the programmed cell death pathway in malignant cells. It is being evaluated both as a single agent and in combination with other therapies such as BTK inhibitors and azacytidine.

Who is developing lisaftoclax?

Lisaftoclax is being developed by Ascentage Pharma Group International, whose American Depositary Shares trade under the ticker AAPG. The company is running global Phase 3 trials for lisaftoclax in CLL/SLL and higher-risk myelodysplastic syndrome, as well as earlier-stage studies in acute myeloid leukemia.

What phase is lisaftoclax in?

Lisaftoclax is in Phase 3 clinical development. Three Phase 3 trials are currently recruiting: GLORA-4 in higher-risk myelodysplastic syndrome, a study combining lisaftoclax with acalabrutinib in newly diagnosed CLL/SLL, and a global CLL/SLL trial. A Phase 1 study in relapsed or refractory AML is also ongoing.

What clinical trials is lisaftoclax in?

Lisaftoclax is being studied in four recruiting trials. Phase 3 trials include NCT06641414 in higher-risk myelodysplastic syndrome, NCT06319456 in newly diagnosed CLL/SLL, and NCT06104566 in CLL/SLL. A Phase 1 trial, NCT04501120, evaluates lisaftoclax alone and in combination in relapsed or refractory AML.

Is lisaftoclax the same as APG-2575?

Yes, lisaftoclax is also known as APG-2575. The names refer to the same investigational Bcl-2 inhibitor. It is also described in combination regimens such as lisaftoclax plus a BTK inhibitor, reflecting its use alongside other agents in clinical trials.