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APG-1252

Phase 1

EGFR Positive Non-small Cell Lung Cancer | Small molecule | Oncology |Ascentage Pharma Group International - American Depository Shares|Last Updated: Oct 1, 2025

Target and mechanism

Molecular targetBcl-2/Bcl-xL
Target classProtein
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment80

FDA Designations

No designations recorded

Clinical trial landscape

APG-1252 · 2 trials · 3 indications

Phase 1 2
NCT04001777A Study of APG-1252 Plus Osimertinib(AZD9291) in EGFR TKI Resistant NSCLC PatientsEGFR Positive Non-small Cell Lung Cancer
ACTIVE NOT_RECRUITING80 Analytics
NCT03080311A Study of APG-1252 in Patients With SCLC or Other Solid TumorsSmall Cell Lung Cancer
COMPLETED50 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Study of APG-1252 Plus Osimertinib(AZD9291) in EGFR TKI Resistant NSCLC Patients
EGFR Positive Non-small Cell Lung CancerUnlock trial analytics
PHASE1COMPLETED
A Study of APG-1252 in Patients With SCLC or Other Solid Tumors
Small Cell Lung CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Maximum Tolerated Dose (MTD)
21 days

To determine the maximum tolerated dose (MTD) of APG-1252 in subjects with NSCLC

Recommended Phase 2 dose (RP2D)
21 days

Recommended Phase 2 dose (RP2D) of APG-1252 in subjects with NSCLC

Dose limiting toxicity (DLT) determination
28 days

Number of participants with APG-1252 treatment-related adverse events as assessed by NCI CTCAE v4.03

Maximum tolerated dose (MTD) determination
18 - 24 months

If ≥ 2/6 patients develop a DLT at any dose level, then this dose will be declared as the MTD

Secondary Endpoints

efficacy assessment: Response Evaluation Criteria In Solid Tumors (RECIST) 1.1
Every 6 weeks up to 2 years
Pharmacokinetic evaluation
18 - 24 months
Pharmacodynamic evaluation
18-24 months
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
APG-1252 plus Osimertinib (AZD9291)EXPERIMENTALAPG-1252 will be explored sequentially using a standard 3+3 escalation scheme at the dose escalation phase; Dose of osimertinib will be fixed at 80mg QD based on approved label.
APG-1252EXPERIMENTALAn accelerated dose escalation scheme will be utilized initially with one patient enrolled per cohort. If at 10 mg or 20 mg dose level, any occurrence in cycle 1 of one ≥ Grade 2 adverse event related or possibly related to APG-1252 (graded as per the National Cancer Institute's Common Terminology Criteria for Adverse Events \[NCI CTCAE\] version 4.0) is the trigger for converting to a standard 3+3 design at that dose level.

Interventions

NameTypeDescription
APG-1252DRUGMultiple dose cohorts, 30 minute IV infusion, weekly for 3 weeks of a cycle with 21days.
Osimertinib Mesylate TabletsDRUGOsimertinib Mesylate Tablets 40mg/80 mg, one time a day until disease progression
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites4

Inclusion Criteria: Only applicable to the dose-finding stage: Patients with NSCLC with disease progression after first-line EGFR TKI and platinum-based chemotherapy. Only applicable to dose-expansion stage: Cohort 1: Patients with NSCLC with disease progression after third-generation EGFR TKI a...

Countries:ChinaUnited States
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Recent Changes (Last 90 Days)

MEDIUMAug 1, 2026NCT04001777primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT04001777primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT04001777primaryCompletionDate: changed

Frequently asked questions about APG-1252

What is APG-1252 used for?

APG-1252 is an investigational small molecule being studied for the treatment of Small Cell Lung Cancer and EGFR Positive Non-small Cell Lung Cancer. It is in Phase 1 clinical development and is not yet approved by regulatory authorities.

What does APG-1252 target?

APG-1252 targets Bcl-2 and Bcl-xL, which are proteins involved in regulating cell survival. By inhibiting these proteins, the drug is designed to promote apoptosis, or programmed cell death, in cancer cells.

Who makes APG-1252?

APG-1252 is being developed by Ascentage Pharma Group International, whose American Depository Shares trade under the ticker AAPG. The company is conducting clinical trials for this drug in oncology indications.

What phase is APG-1252 in?

APG-1252 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by the FDA or other regulatory agencies and is still being evaluated for safety and efficacy in clinical trials.

What clinical trials is APG-1252 in?

APG-1252 has been studied in two Phase 1 trials. NCT03080311, completed in the United States, enrolled 50 patients with Small Cell Lung Cancer or other solid tumors. NCT04001777, active but not recruiting in China, is studying APG-1252 plus osimertinib in EGFR TKI resistant NSCLC patients with a target enrollment of 80.

Is APG-1252 the same as other drugs?

APG-1252 is a distinct investigational compound developed by Ascentage Pharma. It is not known to have alternative names or to be the same as any other approved drug. Its unique mechanism targets Bcl-2 and Bcl-xL proteins.