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JAB-30355 in Patients With Advanced Solid Tumors Harboring TP53 Y220C Mutation

A Phase 1/2a, Multi-Center, Open-Label Study to Evaluate the Safety, Tolerability, Pharmacokinetics, and Preliminary Evidence of Antitumor Activity of JAB-30355 in Adult Patients With Advanced Solid Tumors Harboring TP53 Y220C Mutation

Status
Recruiting
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06386146
Enrollment
144
Registered
2024-04-26
Start date
2024-07-24
Completion date
2027-07-01
Last updated
2026-05-22

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

Conditions

Solid Tumors

Keywords

TP53 Y220C reactivator; TP53 Y220C mutation; P53; Tumor protein p53; TP53; Advanced solid tumors; Ovarian Cancer; JAB-30355

Brief summary

This study is to evaluate the efficacy and safety of JAB-30355 in adult participants with advanced solid tumors harboring TP53 Y220C mutation.

Detailed description

This study consists of two parts: Dose Escalation Phase (Phase 1) and Dose Expansion Phase (Phase 2a). The primary objective of dose escalation is to evaluate the safety and tolerability, and to determine the MTD of JAB-30355 monotherapy administered in participants with advanced solid tumors harboring TP53 Y220C mutation. Dose expansion will further explore JAB-30355's clinical benefit and tolerability in selected dose levels.

Interventions

DRUGJAB-30355

Oral administration

Sponsors

Jacobio Pharmaceuticals Co., Ltd.
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Written informed consent. * Participant must be ≥18 years of age at the time of signing the Informed Consent Form (ICF). * ECOG performance status score of 0 or 1. * Has been treated with at least one line of systemic therapy for that tumor type and stage. * Have documentation of confirmed TP53 Y220C mutation. * At least 1 measurable lesion per RECIST v1.1. * Adequate hematological, renal and hepatic function and appropriate coagulation condition. * Able to swallow and retain orally administered medication.

Exclusion criteria

* Active brain or spinal metastases or primary CNS tumor. * Active infection requiring systemic treatment within 7 days. * Active HBV or HCV. * Any severe and/or uncontrolled medical conditions. * LVEF ≤50% assessed by ECHO or MUGA. * QTcF \> 470 msec.

Design outcomes

Primary

MeasureTime frameDescription
Dose limiting toxicity (DLT)Approximately one yearNumber and proportion of participants who experience at least one dose limiting toxicity (DLT)
Number of participants with adverse eventsApproximately three yearsAll patients participating in this study will be assessed for incidence and severity of adverse events (AEs) and serious AEs, including changes in laboratory values, vital signs, electrocardiograms et al.

Secondary

MeasureTime frameDescription
Peak Plasma Concentration (Cmax)Approximately three yearsObserved maximum plasma concentration after administration. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.
Time to reach the observed maximum (peak) concentration (Tmax)Approximately three yearsTime to reach the observed maximum (peak) concentration. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.
Terminal half-life (t1/2)Approximately three yearsTerminal half-life of JAB-30355 in human. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.
Objective response rate (ORR)Approximately three yearsORR is defined as the percentage of participants with partial response (PR) or complete response (CR) based on Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
Duration of response (DOR)Approximately three yearsDOR is defined as the time from the date of the first documented response (CR or PR) to the earliest date of disease progression or death, whichever occurs first, as determined by investigator assessment per RECIST v1.1.

Countries

China, United States

Contacts

CONTACTJacobio Pharmaceuticals
clinicaltrials@jacobiopharma.com781-918-6670

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 23, 2026