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A Phase Ia/Ib Clinical Study of GH56 Capsules in Subjects With MTAP-Deleted Advanced Solid Tumors

A Multi-center, Single-Arm, Open-Label Phase Ia/Ib Clinical Study Evaluating the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Preliminary Efficacy of GH56 Capsules in Subjects With MTAP-Deleted Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06796699
Enrollment
90
Registered
2025-01-28
Start date
2025-03-07
Completion date
2028-02-29
Last updated
2025-03-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors With MTAP Gene Deletion

Brief summary

This is a multicenter, single-arm, open-label, dose-escalation, dose-expansion study to evaluate the safety, tolerability, PK/PD, and preliminary anti-tumor activity of GH56 Capsule in subjects with advanced solid tumors who have failed or are intolerant in standard treatment, or have no standard therapy. The clinical trial will be carried out in two parts: phase Ia study (dose escalation study) and phase Ib (dose expansion study).

Interventions

DRUGGH56 Capsule

GH56 capsule for oral administration at specified doses on scheduled days.

Sponsors

Suzhou Genhouse Bio Co., Ltd.
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* 1\. Willing to participate in the clinical trial, understand and sign the informed consent, and comply with the study visits and procedures. * 2\. Men or women ≥18 years old. * 3\. Men or women with MTAP-Deleted Advanced Solid Tumors. * 4\. Subjects with solid tumors must have at least one evaluable lesion which should be measurable by RECIST v1.1. * 5\. Eastern Cooperative Oncology Group (ECOG) performance status (Table 12) 0 to 1. * 6\. Survival expectations ≥ 12 weeks. * 7\. Subjects with adequate organ function and the laboratory test critera. * 8\. Serum pregnancy test (for female of childbearing potential) negative within 7 days prior to first dosing of study treatment. Male and female subjects of childbearing potential must agree to use effective methods of contraception from the time of ICF signed, throughout the study and for 6 months after the last dose of the investigational product. A patient is of childbearing potential if, in the opinion of the Investigator, he/she is biologically capable of having children and is sexually active.

Exclusion criteria

* 1\. Subject has not recovered from a prior surgical procedure or has undergone any major surgery within 4 weeks prior to the first dose. * 2\. Known (including suspected) allergic to GH56 or its components. * 3\. Has received any anti-tumor agents within 28 days without delayed toxicity for the treatment of advanced tumors prior to the first administration of GH56 Capsule or has received radiation therapy, biologic therapy, endocrine therapy, targeted therapy, immunotherapy, or other anti-tumor drug treatments within 28 days prior to the first administration of GH56 Capsule, or other anti-tumor drugs or treatments within the following interval before the first administration of GH56 Capsule. * 4\. Has symptomatic or active progressive central nervous system (CNS) metastases such as molluscum contagiosum metastases. * 5\. Subjects who have difficulty in swallowing and have a history of gastrointestinal surgery or other relevant medical disorders that may interfere with the absorption of GH56. * 6\. Subjects had a malignant tumor other than the current tumor within 5 years prior to the first administration of GH56 Capsule, except for localized cancers that have been apparently cured or without disease progression or recurrence for at least 5 consecutive years. * 7\. Uncontrolled or significant cardiovascular disease * 8\. Subjects with documented positive virology status of hepatitis, as confirmed by Screening hepatitis B virus (HBV) and hepatitis C virus (HCV) tests, Human Immunodeficiency Virus (HIV). * 9\. Conditions that the investigator considers inappropriate for participation in this clinical trial.

Design outcomes

Primary

MeasureTime frameDescription
1. Determination of Maximum Tolerated Dose (MTD) , RDEs of GH56.Approximately 3 yearsMTD is the highest dose of a treatment that does not cause unacceptable side effects. RDEs stand for Recommended Dose for Expansion.
Characterize the Safety of GH56Approximately 3 yearsNumber of participants with treatment-emergent adverse events and serious AEs.

Secondary

MeasureTime frameDescription
Duration of Response (DOR)Approximately 3 yearsBased on assessment of radiographic imaging per RECIST version 1.1
Progression-Free Survival (PFS)Approximately 3 yearsBased on assessment of radiographic imaging per RECIST version 1.1
CmaxApproximately 3 yearsThe maximum or peak concentration of GH56 observed after administration
Objective Response Rate (ORR)Approximately 3 yearsBased on assessment of radiographic imaging per RECIST version 1.1
T1/2Approximately 3 yearsHalf-life of GH56
PD of GH56Approximately 3 yearsChange of sDMA protein expression in tumor tissues
TmaxApproximately 3 yearsThe time to peak concentration of GH56
Disease Control Rate (DCR)Approximately 3 yearsBased on assessment of radiographic imaging per RECIST version 1.1

Countries

China

Contacts

Primary ContactYiming Zhou, Bachelor
zhouyiming@genhousebio.com+86-0512-86861608

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026