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A Study of PARG Inhibitor XNW29016 in Patients With Advanced Solid Tumors Who Failed Standard Treatment

A Phase I/II Clinical Study to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics and Preliminary Efficacy of XNW29016 Tablets in Advanced Solid Tumors With Failed Standard Treatment

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06987500
Enrollment
132
Registered
2025-05-23
Start date
2025-04-11
Completion date
2027-08-16
Last updated
2025-06-06

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

Conditions

Tumor, Solid

Brief summary

The purpose of this study is to characterize the safety, tolerability, and efficacy of XNW29016 in participants with advanced solid tumors .

Detailed description

This study is an open-label, multi-center Phase I/II clinical trial. Phase I includes the dose escalation (Stage Ia) and dose expansion (Stage Ib) phases; Phase II is an open-label, multi-center, single-arm basket study to evaluate the efficacy and safety of XNW29016 tablets in subjects with the target indications. This study consists of a screening period, a treatment period, and a follow-up period. Subjects who meet the eligibility criteria during the screening period will enter the treatment period and receive treatment with XNW29016 tablets until the study treatment is discontinued due to reasons such as disease progression or intolerable toxicity. Safety data (such as routine blood tests, routine biochemical tests, ECG, etc.) will be continuously collected during the study, and blood samples for PK (pharmacokinetics), PD (pharmacodynamics), etc. will also be collected. Efficacy evaluation will be based on different tumor types and collect different indicators. The efficacy evaluation will be conducted once every 8 weeks in the first 48 weeks from the start of the study treatment, and then once every 12 weeks.

Interventions

DRUGXNW29016

Oral Medication. The study set 7 dose level cohorts in dose escalation part.

Sponsors

Cancer Institute and Hospital, Chinese Academy of Medical Sciences
CollaboratorOTHER
Evopoint Biosciences Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Patients must have the ability to understand and sign an approved informed consent form (ICF). * Age at the time of consent ≥ 18 years; * Life expectancy of ≥ 3 months; * For prostate adenocarcinoma, at least one evaluable lesion by RECIST v1.1 and PCWG3 criteria; for other advanced solid tumor, at least one measurable lesion by RECIST v1.1 criteria. * Agree to provide tumor tissue samples that meet the testing requirements; * Eastern Cooperative Oncology Group (ECOG) performance status 0 to 1; * Phase Ia:Patients with advanced solid tumor confirmed by histological or cytological examination,who have failed standard of care therapy, or are unable to tolerate standard of care therapy, or unable to obtain/unwilling to receive standard therapy. * Adequate hematologic and non-hematologic function during the screening. * Women of childbearing potential must have a negative result of serum pregnancy test at screening, and must agree to use a reliable and effective method of contraception during the study and for 6 months after the last dose of the study drug. Male patients must agree to take adequate contraceptive measures from the beginning of the study to at least 6 months after the last dose of the test drug, and prohibit sperm donation; * Ability to comply with all procedures of the clinical trial protocol.

Exclusion criteria

* Any previous treatment with a PARG inhibitor. * Subjects known to be allergic to the study drug or its active ingredients or excipients; * Subjects who received anti-tumor therapies including chemotherapy, immunotherapy, radical radiotherapy, major surgery, targeting therapy and other anti-tumor therapies within 4 weeks or 5 half-lives of the drug (whichever is shorter) before the first dose; or received palliative radiotherapy within 2 weeks before the first dose; * Subjects who participated in any other clinical trial of anti-tumor therapy within 28 days before the first dosing, and the last dose of other anti-tumor trial drug is within 28 days prior to the first administration of study drug in this trial; * Subjects who underwent major surgery within 4 weeks prior to the start of the study treatment, or who are scheduled to undergo a major surgery during the study period (procedures such as puncture or lymph node biopsy is allowed); * Subjects who have an allogeneic tissue/ solid organ transplantation; * Subjects who experienced toxicity events during previous anti-tumor treatment and the toxicity has not resolved (the toxicity events has not been graded as ≤ level 1 according to NCI-CTCAE 5.0). Other toxicities that the investigator does not think it will affect the safety assessment of the subject (such as hair loss, etc.) will be allowed; * Subjects who have a history of other malignancies within 3 years prior to enrollment and do not meet the criteria for clinical cure. * Central nervous system metastasis or disease; * Subjects who have impaired heart functions or clinically serious heart disease; * Have severe systemic active infection; * Have a history of tuberculosis within 1 year before enrollment, or had an active TB infection more than 1 year before but not received adequate anti-TB treatment; * Human immunodeficiency virus (HIV) positive, syphilis (Anti-TB) positive; * Known acute or chronic active hepatitis B (HBsAg positive or HBcAb positive, and HBV DNA ≥ 200 IU/mL or ≥ 103 copies/mL) or acute or chronic active hepatitis C (HCV antibody positive and positive for HCV RNA test); * Known impaired gastrointestinal (GI) function or GI diseases that may significantly affect the absorption or metabolism of oral drugs; abdominal fistula, gastrointestinal perforation or abdominal abscess occurred within 6 months before the first administration; * Subjects taking known moderate or strong inducers and inhibitors of CYP3A within 14 days before the first administration; * Active autoimmune and inflammatory diseases; * Women who are pregnant or breastfeeding; * Subjects who are considered unsuitable for the study judged by the investigator.

Design outcomes

Primary

MeasureTime frameDescription
Ph Ia/Ib: Overall safety profile including adverse eventsBaseline up to approximately 2 years* Adverse Events will be graded by National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE version \[5.0\]) * Incidence of Dose Limiting Toxicities
Ph Ia/Ib: Recommended phase 2 doses (RP2D) of XNW29016Approximately 12 monthsRP2D of XNW29016 as administered orally twice daily (BID), continuously in 28-day cycles, in subjects by safety data, pharmacokinetic data, pharmacodynamic data and efficacy data

Secondary

MeasureTime frameDescription
Ph Ia/Ib: Pharmacokinetic ParametersThe cycle 0 and first 28-day cycle of therapyThe area under the plasma concentration-time curve (AUC)
Ph Ia/Ib: Pharmacodynamic ParametersThe cycle 0 and first 28-day cycle of therapyThe relative change of PAR with the baseline before and after administration
Overall Response Rate (ORR)Baseline up to approximately 2 yearsORR was defined as the proportion of participants with Best Overall Response (BOR) of Complete Response (CR) or Partial Response (PR). ORR was based on RECIST 1.1 response for patients with measurable disease at baseline reviewed by the investigator.

Countries

China

Contacts

Primary ContactBin He principal investigator, Ph.D.
xubinghe@medmail.com.cn010-87788495

Outcome results

None listed

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