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Solid TumorsPhase 1/2NCT06386146

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

A Phase 1/2 study testing JAB-30355 in people with Solid Tumors, run by Jacobio Pharmaceuticals Co., Ltd. at 15 sites in 2 countries.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

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

Who is it for?
Ages 18 years and older
Conditions the study is for
Solid Tumors
What is being tested?
JAB-30355
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
144 participants
Where
15 sitesin 2 countries
Study dates
24 Jul 2024to Jul 2027
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • 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.

Who cannot join

  • 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.

Trial locations and contacts

15 sites in 2 countries. Contact the study team or a site near you to ask about taking part.

Jacobio Pharmaceuticals contact

781-918-6670

clinicaltrials@jacobiopharma.com

15 sites in 2 countries

China8 sites, 8 recruiting
  • Research Site

    Beijing, Beijing Municipality, 100000

    Recruiting
  • Research Site

    Beijing, Beijing Municipality, 100021

    Recruiting
  • Research Site

    Beijing, Beijing Municipality, 100142

    Recruiting
  • Research Site

    Guangzhou, Guangdong, 510000

    Recruiting
  • Research Site

    Jinan, Shandong, 250117

    Recruiting
  • Research Site

    Shanghai, Shanghai Municipality, 200032

    Recruiting
  • Research Site

    Shenyang, Liaoning, 110801

    Recruiting
  • Research Site

    Zhengzhou, Henan, 451191

    Recruiting

Other trials in China

United States7 sites, 5 recruiting
  • Research site

    Canton, Ohio, 44718

    Terminated
  • Research site

    Cleveland, Ohio, 44195

    Recruiting
  • Research Site

    Denver, Colorado, 80218

    Recruiting
  • Research site

    Houston, Texas, 77030

    Recruiting
  • Research site

    Lake Mary, Florida, 32771

    Terminated
  • Research Site

    Nashville, Tennessee, 37203

    Recruiting
  • Research site

    St Louis, Missouri, 63110

    Recruiting

Other trials in United States

About this study

Official title: 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.

Read the 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.

Conditions
Solid Tumors
Being tested
JAB-30355
Keywords
TP53 Y220C reactivator; TP53 Y220C mutation; P53; Tumor protein p53; TP53; Advanced solid tumors; Ovarian Cancer; JAB-30355
Medical subject headings
Ovarian Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • JAB-30355Drug

    Oral administration

  • JAB-30355Drug

    Oral administration

Study groups in NCT06386146
Study groupRoleWhat they receive
Dose escalation phaseExperimentalMultiple dose levels of JAB-30355 will be explored to determine the maximum tolerated dose (MTD)
Receives: Drug: JAB-30355
Dose expansion phaseExperimentalDose Expansion Phase will explore JAB-30355's clinical benefit and optimal tolerability in selected dose level.
Receives: Drug: JAB-30355

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Dose limiting toxicity (DLT)

    Number and proportion of participants who experience at least one dose limiting toxicity (DLT)

    Measured: Approximately one year

  2. Number of participants with adverse events

    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.

    Measured: Approximately three years

Secondary outcomes (5)
  1. Peak Plasma Concentration (Cmax)

    Observed maximum plasma concentration after administration. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.

    Measured: Approximately three years

  2. Time to reach the observed maximum (peak) concentration (Tmax)

    Time to reach the observed maximum (peak) concentration. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.

    Measured: Approximately three years

  3. Terminal half-life (t1/2)

    Terminal half-life of JAB-30355 in human. Plasma concentrations of JAB-30355 from subjects will be used to calculate PK parameters.

    Measured: Approximately three years

  4. Objective response rate (ORR)

    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.

    Measured: Approximately three years

  5. Duration of response (DOR)

    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.

    Measured: Approximately three years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Apr 2024
  2. Study start24 Jul 2024
  3. Primary completionJan 2027 (estimated)
  4. Study completionJul 2027 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
144 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06386146
Sponsor's protocol ID
JAB-30355-1001
Status last verified
May 2026
First submitted
23 Apr 2024
Last updated
22 May 2026
Results posted
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing JAB-30355 in people with Solid Tumors, run by Jacobio Pharmaceuticals Co., Ltd. at 15 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 8 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 22 May 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 15 sites in China, United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Jacobio Pharmaceuticals (781-918-6670, clinicaltrials@jacobiopharma.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Dose limiting toxicity (DLT) (time frame: Approximately one year). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 May 2026.

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