IMA402 T Cell-Engaging Receptor Molecule (TCER®) in Recurrent and/or Refractory Solid Tumors

June 29, 2026 updated by: Immatics Biotechnologies GmbH

A Phase I/II First-In-Human Clinical Trial to Evaluate the Safety, Tolerability and Anti-Tumor Activity of IMA402, a Bispecific T Cell-Engaging Receptor Molecule (TCER®) Targeting PRAME, as Monotherapy or in Combination With a Checkpoint Inhibitor in Patients With Recurrent and/or Refractory Solid Tumors

The goal of this clinical trial is to evaluate the safety, tolerability and anti-tumor activity of IMA402 in patients with recurrent and/or refractory solid tumors.

Primary objectives:

  • To determine the maximum tolerated doses and/or recommended doses for extensions for IMA402 as monotherapy and in combination with pembrolizumab (Phase Ia)
  • To characterize the safety and tolerability of IMA402 as monotherapy and in combination (Phase I/II)
  • To evaluate anti-tumor activity of IMA402 as monotherapy and in combination (Phase II)

Secondary objectives:

  • To evaluate the initial anti-tumor activity of IMA402 as monotherapy and in combination (Phase I)
  • To evaluate anti-tumor activity of IMA402 as monotherapy and in combination (Phase II)
  • To describe the PK of IMA402 as monotherapy and in combination (Phase I/II)

Study Overview

Detailed Description

The study will be conducted in two phases:

  • Phase Ia: Dose escalation/de-escalation
  • Phase Ib: Dose extension
  • Phase II: Dose extension in selected Indication-specific extension cohort(s) (ISEC)

Study Type

Interventional

Enrollment (Estimated)

400

Phase

  • 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 Locations

    • Baden-Wurttemberg
      • Heidelberg, Baden-Wurttemberg, Germany, 69120
        • Recruiting
        • Universitaetsklinikum Heidelberg AöR
      • Heidelberg, Baden-Wurttemberg, Germany, 69126
        • Not yet recruiting
        • Thoraxklinik Heidelberg gGmbH
      • Mannheim, Baden-Wurttemberg, Germany, 68167
        • Recruiting
        • Universitaetsklinikum Mannheim GmbH
      • Tübingen, Baden-Wurttemberg, Germany, 72076
        • Not yet recruiting
        • Universitaetsklinikum Tuebingen AöR
      • Ulm, Baden-Wurttemberg, Germany, 89081
        • Recruiting
        • Universitaetsklinikum Ulm AöR
    • Bavaria
      • Erlangen, Bavaria, Germany, 91054
        • Recruiting
        • Universitaetsklinikum Erlangen AöR
      • Nuremberg, Bavaria, Germany, 90419
        • Recruiting
        • Klinikum Nürnberg
      • Regensburg, Bavaria, Germany, 93053
        • Recruiting
        • Universitaetsklinikum Regensburg
      • Würzburg, Bavaria, Germany, 97080
        • Recruiting
        • Universitaetsklinikum Wuerzburg AöR
    • Hesse
      • Frankfurt am Main, Hesse, Germany, 60590
        • Recruiting
        • Goethe University Frankfurt
      • Giessen, Hesse, Germany, 35392
        • Recruiting
        • Justus-Liebig-Universitaet Giessen
      • Marburg, Hesse, Germany, 35043
        • Recruiting
        • Philipps-Universitaet Marburg
      • Offenbach, Hesse, Germany, 63069
        • Not yet recruiting
        • Sana Klinikum Offenbach GmbH
    • Lower Saxony
      • Buxtehude, Lower Saxony, Germany, 21614
        • Recruiting
        • Elbe Kliniken Stade- Buxtehude Elbe Klinikum Buxtehude gGmbH
      • Göttingen, Lower Saxony, Germany, 37075
        • Not yet recruiting
        • Universitaetsmedizin Goettingen
    • North Rhine-Westphalia
      • Bonn, North Rhine-Westphalia, Germany, 53127
        • Recruiting
        • Universitaetsklinikum Bonn AöR
      • Düsseldorf, North Rhine-Westphalia, Germany, 40479
        • Recruiting
        • Marien Hospital Duesseldorf GmbH
      • Essen, North Rhine-Westphalia, Germany, 45147
        • Recruiting
        • Universitaetsklinikum Essen AöR
      • Essen, North Rhine-Westphalia, Germany, 45136
        • Recruiting
        • KEM I Evang. Kliniken Essen-Mitte gGmbH
      • Minden, North Rhine-Westphalia, Germany, 32429
        • Recruiting
        • Johannes Wesling Klinikum Minden
      • Münster, North Rhine-Westphalia, Germany, 48149
        • Not yet recruiting
        • Universitaet Muenster
    • Saxony
      • Chemnitz, Saxony, Germany, 09116
        • Recruiting
        • Klinikum Chemnitz gGmbH
      • Dresden, Saxony, Germany, 01307
        • Recruiting
        • Universitaetsklinikum Carl Gustav Carus Dresden an der Technischen Universitaet Dresden AöR
      • Leipzig, Saxony, Germany, 04103
        • Recruiting
        • University of Leipzig
    • Saxony-Anhalt
      • Magdeburg, Saxony-Anhalt, Germany, 39120
        • Recruiting
        • Universitaetsklinikum Magdeburg AöR
      • Groningen, Netherlands, 9713 GZ
        • Recruiting
        • Universitair Medisch Centrum Groningen
      • Utrecht, Netherlands, 3584 CX
        • Recruiting
        • Universitair Medisch Centrum Utrecht
    • North Holland
      • Amsterdam, North Holland, Netherlands, 1066 CX
        • Recruiting
        • Antoni von Leeuwenhoek- Netherlands Cancer Institute
    • South Holland
      • Leiden, South Holland, Netherlands, 2333 ZA
        • Recruiting
        • Leiden Universitair Medisch Centrum

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

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients ≥ 18 years old
  • Patients must have a specific pathologically confirmed and documented advanced and/or metastatic solid tumor indication
  • Patients must have received or not be eligible for indicated standard-of-care treatments per cohort
  • Measurable disease according to RECIST 1.1
  • Confirmed HLA status
  • ECOG Performance Status of 0 to 1
  • Adequate baseline hematologic, hepatic and renal function, acceptable coagulation status

Exclusion Criteria:

  • Other active malignancies that require treatment or that might interfere with the trial endpoints
  • The patient is pregnant or is breastfeeding
  • History of hypersensitivity to components of IMA402 or rescue medications; hypersensitivity to or contraindication according to current SmPC for respective combination medicinal product
  • The patient has concurrent severe and/or uncontrolled medical disease. Any other health condition that would, in the investigator's or sponsor's judgement, contraindicate the patient's participation in the clinical trial because of safety concerns or compliance with clinical trial procedures
  • Patients with active brain metastases, history of bleeding into brain metastases, known brain metastases who are receiving therapeutic anticoagulation

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: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Dose extension (Phase II)
Selected ISEC investigated on MTD/RDEs based on a manageable/favorable safety profile and initial signs of anti-tumor activity (Phase II)
IV infusions
IMA402 IV infusions and checkpoint inhibitor
Experimental: Dose escalation/de-escalation (Phase Ia)
Dose-Finding of IMA402 as monotherapy or in combination with checkpoint inhibitor (Phase Ia)
IV infusions
IMA402 IV infusions and checkpoint inhibitor
Experimental: Dose extension (Phase Ib)
Extension cohorts of IMA402 as monotherapy or in combination based on maximum tolerated dose (MTD) and/or recommended doses for extensions (RDEs) (Phase Ib)
IV infusions
IMA402 IV infusions and checkpoint inhibitor
IMA402 IV infusions and chemotherapy
IMA402 and IMA401 IV infusions
IMA402 IV infusions and monoclonal antibody
IMA402 IV infusions and chemotherapy +/- monoclonal antibody

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Phase I: Number of patients with dose limiting toxicities (DLTs)
Time Frame: 24 months
24 months
Phase I/II: Number of patients with treatment-emergent adverse events (TEAEs)
Time Frame: 40 months
40 months
Phase I/II: Number of patients with serious TEAEs
Time Frame: 40 months
40 months
Phase I/II: Frequency of dose interruptions and reductions, permanent discontinuations
Time Frame: 40 months
40 months
Phase I/II: Duration of dose interruptions and reductions, permanent discontinuations
Time Frame: 40 months
40 months
Phase II: Overall response rate (ORR) based on best overall response (BOR) of complete response (CR) and partial response (PR) locally assessed using Response Evaluation Criteria in Solid Tumors v1.1 (RECIST v1.1)
Time Frame: 40 months
40 months

Secondary Outcome Measures

Outcome Measure
Time Frame
Phase I: ORR based on BOR of CR and PR locally assessed using RECIST v1.1 and iRECIST
Time Frame: 37 months
37 months
Phase II: ORR based on BOR of CR and PR locally assessed using iRECIST
Time Frame: 40 months
40 months
Phase I/II: Disease control rate (DCR) of CR, PR or stable disease (SD) (lasting 6 or more weeks) following the initiation of IMA402 based on RECIST v1.1 and iRECIST
Time Frame: 40 months
40 months
Phase I/II: Duration of response (DOR) of CR or PR based on RECIST v1.1 and iRECIST
Time Frame: 40 months
40 months
Phase I/II: Progression-free survival (PFS) based on RECIST v1.1 and iRECIST
Time Frame: 40 months
40 months
Phase I/II: Overall survival (OS)
Time Frame: 40 months
40 months
Phase I/II: Determination of PK parameter: half-life (t1/2)
Time Frame: 40 months
40 months
Phase I/II: Determination of PK parameter: minimal serum concentration (Cmin)
Time Frame: 40 months
40 months
Phase I/II: Determination of PK parameter: maximal serum concentration (Cmax)
Time Frame: 40 months
40 months
Phase I/II: Determination of PK parameter: area under the curve (AUC)
Time Frame: 40 months
40 months

Collaborators and Investigators

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

Investigators

  • Study Director: Immatics Biotechnologies GmbH, Immatics Biotechnologies GmbH

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 (Actual)

August 9, 2023

Primary Completion (Estimated)

September 1, 2027

Study Completion (Estimated)

September 1, 2027

Study Registration Dates

First Submitted

July 14, 2023

First Submitted That Met QC Criteria

July 14, 2023

First Posted (Actual)

July 24, 2023

Study Record Updates

Last Update Posted (Actual)

July 1, 2026

Last Update Submitted That Met QC Criteria

June 29, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

There is not a plan to make IPD available.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

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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