A Multicentre,Study of IBI133 in Subjects WithUnresectable, Locally Advanced or Metastatic SolidTumours

November 13, 2025 updated by: Innovent Biologics (Suzhou) Co. Ltd.

A Multicentre, Open-label, Phase 1/2 Study of IBI133 in Subjects With Unresectable, Locally Advanced or Metastatic Solid Tumours

This is a multicentre, open-label, first-in-human, phase 1/2 study of IBI133 in subjects with unresectable, locally advanced or metastatic solid tumours. Phase 1 section includes three parts, IBI133 dose escalation part, and IBI133 monotherapy dose expansion part. The objective of phase 1 section is to identify MTD/recommended dose for expansion (RDE) of IBI133 monotherapy . The objective of phase 2 section is to further explore efficacy, safety and tolerability of IBI133 monotherapy at RDE in specified tumour population. The treatment cycle of the study is defined as every 3 weeks (21 days).

Study Overview

Status

Status

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

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.

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 (Actual)

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.
19

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

  • Australia
    • New South Wales
      • Liverpool, New South Wales, Australia, 2170
        • Liverpool Hospital

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:

  1. Subjects with the ability to understand and give written informed consent for participation in this trial, including all evaluations and procedures as specified by this protocol;
  2. Male or female subjects ≥ 18 years old;
  3. Eastern Cooperative Oncology Group (ECOG) performance status (PS) of 0 or 1;
  4. Anticipated life expectancy of ≥ 12 weeks;
  5. Adequate bone marrow and organ function.
  6. Has a documented (histologically- or cytologically-proven), unresectable, locally advanced or metastatic solid tumour that is refractory to or intolerable with standard treatment, or for which no standard treatment is available;

Exclusion Criteria:

  1. Participate in any other interventional clinical research except observational (non-interventional) study or in the follow-up phase of the interventional study;
  2. Prior HER3 targeted treatment, including but not limited to monoclonal antibody, bispecific antibody, T cell engager, and antibody-drug conjugate.
  3. Prior treatment with an antibody-drug conjugate (ADC) which consists of an exatecan derivative that is a topoisomerase I inhibitor (e.g. DS-8201).

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: N/A
  • Interventional Model: Single Group 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: Open-label：IBI133 monotherapy
Biological: IBI133

IBI133:

The provisional dose levels are planned to be evaluated, but it is possible for additional and/or intermediate dose levels to be added during the course of the study. Q3W

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 toxicities (DLTs)
Time Frame: 21 days after the first dose of IBI133
DLTs are assessed during the DLT observation period to determine maximum tolerated dose (MTD)and /or recommended phase 2 dose (RP2D)
21 days after the first dose of IBI133
Safety: Adverse events (AEs);treatment emergent adverse event(TEAEs),serious adverse events(SAEs)
Time Frame: Up to 90 days after the last administration
Adverse events will be assessed by investigator(s)according to NCI-CTCAE v5.0
Up to 90 days after the last administration

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
maximum concentration (Cmax)
Time Frame: Up to 2 years
PK parameters maximum concentration(Cmax)of IBI133,total antibody,can will be determined
Up to 2 years
area under the curve (AUC)
Time Frame: Up to 2 years
PK parameters clearance rate of IBI133,total antibody,exate can will be determined
Up to 2 years
clearance rate(CL)
Time Frame: Up to 2 years
PK parameters clearance rateof IBI133,total antibody,exate can will be determined
Up to 2 years
half-life (T1/2)
Time Frame: Up to 2 years
PK parameters half-life of IBI133,total antibody,exate can will be determined
Up to 2 years
anti-drug antibody (ADA)
Time Frame: Up to 2 years
the incidence and characterization of ADA OF IBI133 will be determined
Up to 2 years
Preliminary efficacy including objective response rate (ORR)
Time Frame: Through study completion,Up to 2 years
ORR is defined as the proportion of subjects with a CR or PR. Number and percentage of subjects with CR or PR will be summarized.
Through study completion,Up to 2 years
duration of response (DoR)
Time Frame: Through study completion,Up to 2 years
DoR is defined as the time from the date first achieved CR or PR until the date of first documents disease progression based on RECIST v1.1 or death
Through study completion,Up to 2 years
disease control rate (DCR)
Time Frame: Through study completion,Up to 2 years
DCR is defined as the proportion of subjects with a CR, PR or SD, and will be analysed in the same fashion as ORR.
Through study completion,Up to 2 years
,time to response (TTR)
Time Frame: Through study completion,Up to 2 years
TTR is defined as the time from the date of first study drug to the date first achieved CR or PR based on RECIST v1.1.
Through study completion,Up to 2 years
progression free survival (PFS)
Time Frame: Through study completion,Up to 2 years
PFS is defined as the time from the date of first study drug to death or disease progression based on RECIST v1.1, whichever occurs first.
Through study completion,Up to 2 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.
Innovent Biologics (Suzhou) 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.
January 16, 2024

Primary Completion (Actual)

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.
February 19, 2025

Study Completion (Actual)

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.
February 19, 2025

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).
November 27, 2023

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.
December 6, 2023

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.
December 14, 2023

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.
November 17, 2025

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.
November 13, 2025

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.
November 1, 2025

More Information

Terms related to this study

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.
  • CIBI133A101

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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