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HQP1351

Phase 2

Chronic Myeloid Leukemia, Chronic Phase | Small molecule | Oncology |Ascentage Pharma Group International - American Depository Shares|Last Updated: Apr 9, 2026

Target and mechanism

Molecular targetBCR-ABL1
Target classTyrosine Kinase
ModalitySmall molecule

Success Probability

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Market & Valuation

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Trial Design

RandomizedCONTROLLEDDMC
Total Trials2
Total Enrollment156

FDA Designations

No designations recorded

Clinical trial landscape

HQP1351 · 4 trials · 4 indications

Phase 2 1Phase 1 3
NCT04126681A Pivotal Study of HQP1351 in Patients With Chronic Myeloid Leukemia in Chronic PhaseChronic Myeloid Leukemia, Chronic Phase
COMPLETED144 Analytics
PHASE2COMPLETED
A Pivotal Study of HQP1351 in Patients With Chronic Myeloid Leukemia in Chronic Phase
Chronic Myeloid Leukemia, Chronic PhaseUnlock trial analytics

Study Endpoints

Primary Endpoints

Event free survival (EFS)
By the end of Cycle 24 (each cycle is 28 days)

EFS is defined as any "event" occurred since randomization, such as disease progression.

Radioactivity concentration of each blood and plasma sample
Day 1- Day 15

Use liquid scintillation counter to evaluate Radioactivity concentration of each blood and plasma sample

Radioactivity concentration of each urine samples
Day 1- Day 15

Use liquid scintillation counter to evaluate Radioactivity concentration of each urine sample

Radioactivity concentration of each feces samples
Day 1- Day 15

Use liquid scintillation counter to evaluate Radioactivity concentration of each feces sample

Total recovery of radioactivity in urine and feces
Day 1- Day 15

Calculate the total radioactivity in urine and feces based on the radioactivity concentration of each sample

Area under the curve from the time of dosing to infinity [AUC(0-inf)]
1-5 days after every drug administration

Area under the plasma concentration-time curve from time zero extrapolated to infinity time of HQP1351.

Area under the curve from the time of dosing to the last measurable concentration [AUC(0-last)]
1-5 days after every drug administration

Area under the plasma concentration-time curve from time zero to the last measurable time point of HQP1351.

Percentage of AUC(0-inf)_obs due to extrapolation from the last measurable time point to infinity (AUC_%Extrap)
1-5 days after every drug administration

Percentage of area under the concentration time curve from time zero extrapolated to infinite time obtained by extrapolation of HQP1351.

Maximum observed concentration (Cmax)
1-5 days after every drug administration

Maximum observed plasma concentration of HQP1351.

Time of maximum observed concentration (Tmax)
1-5 days after every drug administration

Time to maximum observed plasma concentration of HQP1351.

Terminal elimination half life (T1/2)
1-5 days after every drug administration

Terminal elimination half life (T1/2) is defined as the duration until observation of half of the maximum concentration of HQP1351.

Total body clearance for extravascular administration (CL/F)
1-5 days after every drug administration

Apparent clearance of HQP1351 following oral dosing. Clearance of a drug is a measure of rate at which a drug is metabolized or eliminated by normal biological processes. Clearance obtained after oral dose of HQP1351 (apparent oral clearance) is influenced by the fraction of dose absorbed.

Volume of distribution based on the terminal phase for extravascular administration (Vz/F)
1-5 days after every drug administration

Apparent volume of distribution of HQP1351. Volume of distribution is defined as the theoretical volume in which the total amount of drug would need to be uniformly distributed to produce the desired plasma concentration of a drug. Apparent volume of distribution of HQP1351 after oral dose (Vz/F) is influenced by the fraction absorbed.

Safety and tolerance
30 days after the last dose of HQP1351

Patients with HQP1351 treatment related adverse events (AE), serious adverse events (SAE) will be assessed according NCI CTCAE Version 4.03.

Secondary Endpoints

Complete hematologic response (CHR)
By the end of Cycle 24 (each cycle is 28 days)
Major cytogenetic response (MCyR)
By the end of Cycle 24 (each cycle is 28 days)
Complete cytogenetic response (CCyR)
By the end of Cycle 24 (each cycle is 28 days)
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
HQP1351 therapy cohortEXPERIMENTALHQP1351 40 mg, taken orally once every other day of a 28-day cycle
Best Available Therapy (BAT) cohortACTIVE_COMPARATORBest available therapy (BAT) will be selected by the investigator for each participant.
[14C] HQP1351EXPERIMENTALTo investigate the absorption properties, as well as to evaluate the mass balance and elucidate the pathways of biotransformation after a single oral dose (30mg, 100µCi) of \[14C\] HQP1351 to healthy Chinese male subjects.
A groupEXPERIMENTALSubjects in the group A will be given HQP1351 after fasting meal on Day 1. Then after a seven-day of cleaning time, subjects in the group A will be given HQP1351 after 30 minutes of high-fat meal on Day 8.
B groupEXPERIMENTALSubjects in the group B will be given HQP1351 after 30 minutes of high-fat meal on Day 1. Then after a seven-day of cleaning time, subjects in the group B will be given HQP1351 after fasting meal on Day 8.
HQP1351 30mgEXPERIMENTAL30 mg QOD(Minor subjects will be enrolled based on weight)
HQP1351 40mgEXPERIMENTAL40 mg QOD(Minor subjects will be enrolled based on weight)
HQP1351 50mgEXPERIMENTAL50 mg QOD
HQP1351 20mgEXPERIMENTAL20 mg QOD (Minor subjects will be enrolled based on weight)

Interventions

NameTypeDescription
HQP1351DRUGHQP1351 is a new, bioavailable inhibitor against BCRABLWT and a broad spectrum of BCR-ABL mutants including BCR-ABLT315I
Hydroxyurea or Interferon-based therapyDRUGPatients will receive BAT based on the Investigator's opinion, taking into account the manufacturer's instructions, labeling, subject's medical condition, and institutional guidelines.
HomoharringtonineDRUGPatients will receive BAT based on the Investigator's opinion, taking into account the manufacturer's instructions, labeling, subject's medical condition, and institutional guidelines.
Imatinib, Dasatinib or NilotinibDRUGPatients will receive BAT based on the Investigator's opinion, taking into account the manufacturer's instructions, labeling, subject's medical condition, and institutional guidelines.
[14C] HQP1351DRUGOrally, single dose of 30mg
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites22

Inclusion Criteria: 1. Male or non-pregnant, non-lactating female patients who are 18 years of age or older. 2. CML-CP patients with positive Ph chromosome or BCR-ABL fusion genes. 3. Resistance and intolerance of first- and second-generation TKIs: defined as resistance or intolerance to imatinib, ...

Countries:China
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Recent Changes (Last 90 Days)

MEDIUMAug 1, 2026NCT03594422primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT03594422primaryCompletionDate: changed
MEDIUMAug 1, 2026NCT03594422primaryCompletionDate: changed

Frequently asked questions about HQP1351

What is HQP1351 used for?

HQP1351 is an investigational small molecule being studied for chronic myeloid leukemia (CML), chronic phase CML, and gastrointestinal stromal tumor (GIST). It is being developed by Ascentage Pharma Group International (ticker: AAPG) and is currently in Phase 1 clinical development.

What does HQP1351 target?

HQP1351 targets BCR-ABL1, a tyrosine kinase. It is designed to inhibit this fusion protein, which is characteristic of chronic myeloid leukemia. The drug is being evaluated in patients with CML and GIST.

Who makes HQP1351?

HQP1351 is being developed by Ascentage Pharma Group International, which trades under the ticker AAPG. The company is conducting clinical trials of HQP1351 in China for chronic myeloid leukemia and gastrointestinal stromal tumor.

What phase is HQP1351 in?

HQP1351 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. Clinical trials are ongoing to evaluate its safety and efficacy in patients with chronic myeloid leukemia and gastrointestinal stromal tumor.

What clinical trials is HQP1351 in?

HQP1351 is being studied in several clinical trials, including NCT03594422 for GIST or solid tumors, NCT03882281 for chronic myeloid leukemia, NCT04126681 for chronic phase CML, and NCT04126707 for CML. These trials are conducted in China.

Is HQP1351 the same as olverembatinib?

HQP1351 is also known as olverembatinib. It is a BCR-ABL1 tyrosine kinase inhibitor being developed by Ascentage Pharma for chronic myeloid leukemia and gastrointestinal stromal tumor.