A Study to Test Obrixtamig Treatment in People With Different Types of Advanced Cancer Who Took Part in a Previous Study With Obrixtamig

November 5, 2026 updated by: Boehringer Ingelheim

A Single-arm, Open-label, Safety Rollover Trial of Obrixtamig in Patients With Different Tumours

This study is open to adults with advanced cancer who received obrixtamig (BI 764532) in one of several previous studies and benefited from treatment. The goal of this study is to find out how well participants who received obrixtamig in a previous study tolerate obrixtamig. Obrixtamig is an antibody-like molecule that may help the immune system fight cancer.

Participants in this study continue receiving obrixtamig and any other study or standard of care anti-cancer medicines they received in their previous study at the same doses and following the same treatment schedule. Treatments are given in 3-week cycles as infusions into a vein.

Participants can stay in the study as long as they benefit from treatment and can tolerate it. During this time, they visit the study site regularly. During the visits, study doctors check participants' health and take note of any unwanted effects.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Not yet 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.

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.
68

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 3

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

  • Belgium
      • Ghent, Belgium, 9000
  • France
      • Bordeaux, France, 33000
      • Bron, France, 69677
      • Paris, France, 75005
      • Strasbourg, France, 67091
      • Villejuif, France, 94805
  • Germany
      • Dresden, Germany, 01307
      • Frankfurt, Germany, 60590
      • Würzburg, Germany, 97078
  • Japan
      • Saitama, Hidaka, Japan, 350-1298
        • Saitama Medical University International Medical Center
        • Contact:
      • Tokyo, Chuo-ku, Japan, 104-0045
  • Poland
      • Gdansk, Poland, 80-214
      • Lodz, Poland, 93338
        • Polish Mother's Memorial Hospital - Research Institute
        • Contact:
  • Spain
      • Madrid, Spain, 28040
      • Madrid, Spain, 28034
        • Hospital Universitario Ramon Y Cajal
        • Contact:

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

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion criteria :

  1. Patient is ongoing on obrixtamig treatment in any trial sponsored by Boehringer Ingelheim (hereafter referred to as the 'parent trial') that has achieved data cut-off for final analysis.
  2. Patient is benefiting from obrixtamig treatment according to investigators' assessment in the parent trial. Patients who experienced progressive disease in the parent trial will be eligible for the rollover trial, if treatment beyond progression has been agreed between the sponsor and investigators in the parent trial provided that patient is considered to derive clinical benefit.
  3. Patient meets the criteria for further obrixtamig treatment as defined in the clinical trial protocol of the parent trial they are currently participating in. Patients with ongoing dose delays due to adverse events in the parent trial are eligible, provided recovery from the adverse event takes place within the allowed time window in the parent trial.
  4. Male or female participants ≥18 years old and at least at the legal age of consent in countries where it is greater than 18 years at the time of signature of the informed consent form (ICF).
  5. Further inclusion criteria apply.

Exclusion criteria :

  1. Any medical condition which in the opinion of the investigator should exclude the patient from receiving treatment with obrixtamig.
  2. Participants who must receive or intend to receive restricted medications or any drug considered likely to interfere with the safe conduct of the trial.
  3. Women who are pregnant, nursing, or who plan to become pregnant while participating in the trial.
  4. Patients who are institutionalized due to regulatory or juridical order; or dependent on sponsor, site or investigator.
  5. Further exclusion criteria apply.

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: Rollover arm

Patients who have previously received treatment with obrixtamig in another Boehringer Ingelheim-sponsored clinical trial (referred to as the 'parent trial') will be enrolled in this rollover study.

Treatment schedule and doses in the parent study will be continued in the rollover study.
Biological: Obrixtamig

Obrixtamig

Other Names:
  • BI 764532
Biological: Ezabenlimab

Ezabenlimab

Biological: Atezolizumab

Atezolizumab

Other Names:
  • Tecentriq
Drug: Topotecan

Topotecan

Biological: Tocilizumab

Tocilizumab

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
Time Frame
Occurrence of treatment-emergent adverse events ( AEs) during the on-treatment period.
Time Frame: Up to 36 months
Up to 36 months

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
Time Frame
Obrixtamig treatment duration from the first administration in parent trial until the last administration in rollover trial.
Time Frame: Up to 36 months
Up to 36 months

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.
Boehringer Ingelheim

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

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 (Estimated)

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.
March 4, 2027

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.
July 3, 2028

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 3, 2028

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 5, 2026

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.
November 5, 2026

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.
November 10, 2026

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 10, 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.
November 5, 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.
October 1, 2026

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.
  • 1438-0038
  • 2026-527407-19-00 (Registry Identifier: CTIS (EU))
  • U1111-1342-6504 (Registry Identifier: WHO International Clinical Trials Registry Platform (ICTRP))

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Clinical studies sponsored by Boehringer Ingelheim, phases I to IV, interventional and non-interventional, are in scope for sharing of the raw clinical study data and clinical study documents. Exceptions might apply, e.g. studies in products where Boehringer Ingelheim is not the license holder; studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials; studies conducted in a single center or targeting rare diseases (in case of low number of patients and therefore limitations with anonymization). For more details refer to: https://www.clinicalstudies.boehringer-ingelheim.com/msw/datasharing

IPD Sharing Time Frame

One year after the approval has been granted by major Regulatory Authorities and after the primary manuscript has been accepted for publication, or after termination of the development program.

IPD Sharing Access Criteria

For study documents -upon signing of a 'Document Sharing Agreement'. For study data -1. after the submission and approval of the research proposal (checks will be performed by the sponsor and/or the independent review panel, including checking that the planned analysis does not compete with sponsor's publication plan); 2. and upon signing of a legal agreement.

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.

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings