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

May 20, 2026 updated by: Jacobio Pharmaceuticals Co., Ltd.

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

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

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

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.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
144

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Beijing Municipality
      • Beijing, Beijing Municipality, China, 100000
        • Recruiting
        • Research Site
      • Beijing, Beijing Municipality, China, 100021
        • Recruiting
        • Research Site
      • Beijing, Beijing Municipality, China, 100142
        • Recruiting
        • Research Site
    • Guangdong
      • Guangzhou, Guangdong, China, 510000
        • Recruiting
        • Research Site
    • Henan
      • Zhengzhou, Henan, China, 451191
        • Recruiting
        • Research Site
    • Liaoning
      • Shenyang, Liaoning, China, 110801
        • Recruiting
        • Research Site
    • Shandong
      • Jinan, Shandong, China, 250117
        • Recruiting
        • Research Site
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, China, 200032
        • Recruiting
        • Research Site
  • United States
    • Colorado
      • Denver, Colorado, United States, 80218
        • Recruiting
        • Research Site
    • Florida
      • Lake Mary, Florida, United States, 32771
        • Terminated
        • Research Site
    • Missouri
      • St Louis, Missouri, United States, 63110
        • Recruiting
        • Research Site
    • Ohio
      • Canton, Ohio, United States, 44718
        • Terminated
        • Research Site
      • Cleveland, Ohio, United States, 44195
        • Recruiting
        • Research Site
    • Tennessee
      • Nashville, Tennessee, United States, 37203
        • Recruiting
        • Research Site
    • Texas
      • Houston, Texas, United States, 77030
        • Recruiting
        • Research Site

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

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.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Sequential Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Dose escalation phase
Multiple dose levels of JAB-30355 will be explored to determine the maximum tolerated dose (MTD)
Drug: JAB-30355
Oral administration
Experimental: Dose expansion phase
Dose Expansion Phase will explore JAB-30355's clinical benefit and optimal tolerability in selected dose level.
Drug: JAB-30355
Oral administration

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Dose limiting toxicity (DLT)
Time Frame: Approximately one year
Number and proportion of participants who experience at least one dose limiting toxicity (DLT)
Approximately one year
Number of participants with adverse events
Time Frame: Approximately three years
All 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.
Approximately three years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Peak Plasma Concentration (Cmax)
Time Frame: Approximately three years
Observed maximum plasma concentration after administration. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.
Approximately three years
Time to reach the observed maximum (peak) concentration (Tmax)
Time Frame: Approximately three years
Time to reach the observed maximum (peak) concentration. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.
Approximately three years
Terminal half-life (t1/2)
Time Frame: Approximately three years
Terminal half-life of JAB-30355 in human. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.
Approximately three years
Objective response rate (ORR)
Time Frame: Approximately three years
ORR 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.
Approximately three years
Duration of response (DOR)
Time Frame: Approximately three years
DOR 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.
Approximately three years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Jacobio Pharmaceuticals Co., Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 24, 2024

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 23, 2024

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 25, 2024

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 26, 2024

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
May 22, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
May 20, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
May 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • JAB-30355-1001

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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