IMA203/IMA203CD8 + Nivolumab for Cancer
(ACTengine Trial)
What You Need to Know Before You Apply
What is the purpose of this trial?
This trial aims to test the safety and tolerability of a new treatment for solid tumors, which are masses of tissue that can occur in various organs. The treatment involves IMA203/IMA203CD8, a type of TCR-T cell therapy, used alone or with nivolumab, an immunotherapy drug. It targets individuals whose tumors express a protein commonly found in melanoma, a type of skin cancer. Those with solid tumors that have recurred or do not respond to current treatments, and who possess a specific genetic marker (HLA-A*02:01), might be suitable candidates. As a Phase 1 trial, the research focuses on understanding how the treatment works in people, offering participants the opportunity to be among the first to receive this innovative therapy.
Will I have to stop taking my current medications?
The trial information does not specify if you need to stop taking your current medications. However, if you have a serious autoimmune disease, you might be included if your condition is well controlled without immunosuppressive drugs. It's best to discuss your specific medications with the trial team.
Is there any evidence suggesting that this trial's treatments are likely to be safe?
Research has shown that IMA203 alone was well tolerated in earlier studies, with no very severe side effects reported. The treatment was manageable and did not cause major problems for patients.
For IMA203CD8, early data suggest it effectively targets cancer cells and boosts the immune system's response to tumors. It is generally well tolerated, similar to IMA203.
Nivolumab, another treatment in the trial, has FDA approval for various cancers. Serious side effects, such as urinary tract infections and kidney problems, occur in more than 2% of patients, though they are not common.
Overall, the treatments in this trial have demonstrated a reasonable safety profile based on existing data and approvals.12345Why are researchers excited about this trial's treatments?
Researchers are excited about IMA203/IMA203CD8 combined with Nivolumab because these treatments target cancer using innovative approaches. Unlike standard chemotherapies that attack rapidly dividing cells indiscriminately, IMA203/IMA203CD8 focus on enhancing the body's T-cell response to specifically target and destroy cancer cells. This method offers the potential for a more precise attack on tumors with fewer side effects. Additionally, the combination with Nivolumab, a checkpoint inhibitor, helps to further unleash the immune system's power by preventing cancer cells from evading immune detection. This dual approach represents a significant advancement in personalized cancer therapy, offering hope for improved outcomes in patients with challenging cancer types.
What evidence suggests that this trial's treatments could be effective for solid tumors?
Research has shown that IMA203 holds promise for treating solid tumors, with over half of the patients experiencing tumor shrinkage. Patients experienced lasting benefits, with the average response lasting more than a year. In this trial, some participants will receive IMA203 alone, while others will receive the next-generation IMA203CD8 therapy, which has also demonstrated strong anti-tumor effects with manageable side effects. Additionally, some participants will receive Nivolumab, which has proven effective in treating various cancers like melanoma and lung cancer by helping the immune system better attack cancer cells. Together, these treatments in the various trial arms aim to target and reduce solid tumors that express the PRAME protein.23678
Who Is on the Research Team?
Cedrik Britten, M.D.
Principal Investigator
Immatics US, Inc.
Are You a Good Fit for This Trial?
This trial is for adults with solid tumors that no longer respond to standard treatments and express a specific antigen (PRAME). Participants must have an ECOG performance status of 0-1, indicating they are fully active or restricted in physically strenuous activity but ambulatory. They should not have other cancers within the last 3 years, serious autoimmune diseases, heart conditions, prior transplants, immune deficiencies, HIV/HBV/HCV infections with detectable viral load, brain metastases over 10 cm in size or severe reactions to similar drugs.Inclusion Criteria
Exclusion Criteria
Timeline for a Trial Participant
Screening
Participants are screened for eligibility to participate in the trial
Manufacturing
IMA203 or IMA203CD8 products are manufactured from the patients' white blood cells
Treatment
Lymphodepletion with cyclophosphamide and fludarabine followed by IMA203/IMA203CD8 product infusion; IL-2 may be given until day 10; nivolumab administered in Extension Cohort B
Follow-up
Participants are monitored for safety and effectiveness after treatment
What Are the Treatments Tested in This Trial?
Interventions
- IMA203/IMA203CD8 Product
- Nivolumab
Trial Overview
The study tests IMA203/IMA203CD8 products alone or combined with nivolumab on patients whose tumors express PRAME. It aims to determine the safety and tolerability of these therapies. The trial will measure how well the disease responds according to RECIST criteria which assess tumor shrinkage and growth.
How Is the Trial Designed?
12
Treatment groups
Experimental Treatment
IMA203 at RP2D
IMA203CD8 monotherapy at dose levels confirmed to be safe
IMA203CD8 monotherapy at dose levels confirmed to be safe
IMA203CD8 monotherapy at dose levels confirmed to be safe
IMA203CD8 at dose levels confirmed to be safe; without IL-2
IMA203CD8 at dose levels confirmed to be safe
IMA203 at RP2D + nivolumab
IMA203 at final RP2D (flat dose)
IMA203 at RP2D
IMA203CD8 monotherapy at dose levels confirmed to be safe
Dose escalation of IMA203CD8
Dose escalation of IMA203
Find a Clinic Near You
Who Is Running the Clinical Trial?
Immatics US, Inc.
Lead Sponsor
Published Research Related to This Trial
Citations
Autologous T cell therapy for PRAME + advanced solid ...
Here we report interim data from a first-in-human, multicenter, open-label, 3 + 3 dose-escalation/de-escalation phase 1 trial studying IMA203, ...
Phase 1 Clinical Update of IMA203, an Autologous TCR T ...
Efficacy and Safety of Anzutresgene Autoleucel (IMA203), a PRAME-directed T-cell Receptor T-cell Therapy, in. Patients with Previously ...
SUPRAME: A phase 3 trial comparing IMA203 ...
IMA203 TCR-T demonstrated a favorable tolerability profile and durable objective responses in heavily-pretreated patients with different tumor ...
4.
investors.immatics.com
investors.immatics.com/news-releases/news-release-details/immatics-ima203-prame-cell-therapy-data-presented-2025-asco-0Immatics IMA203 PRAME Cell Therapy Data Presented at ...
The longer follow-up of patients demonstrates a consistent and favorable tolerability profile as well as durable responses with a confirmed ORR of 56%.
Phase 1 clinical update of IMA203, an autologous TCR-T ...
Exposure data (Cmax, AUC) demonstrated a clear dose-dependent improvement in clinical efficacy: Patients with confirmed PR had a higher ...
6.
investors.immatics.com
investors.immatics.com/news-releases/news-release-details/immatics-announces-updated-phase-1b-clinical-data-actenginerImmatics Announces Updated Phase 1b Clinical Data on ...
IMA203 monotherapy has maintained a favorable tolerability profile with no treatment-related Grade 5 adverse events in the safety population (N= ...
7.
investors.immatics.com
investors.immatics.com/news-releases/news-release-details/immatics-reports-interim-clinical-data-ongoing-phase-1b-cohortPress Release
Safety data for IMA203 TCR-T monotherapy in Phase 1b Cohort A: Treatment with IMA203 monotherapy continues to show manageable tolerability ...
Study Details | NCT03686124 | ACTengine® IMA203/ ...
The study purpose is to establish the safety and tolerability of IMA203/IMA203CD8 products with or without combination with nivolumab in patients with solid ...
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