SUPRAME - ACTengine® IMA203 vs. investigator’s choice of treatment in previously treated, unresectable or metastatic cutaneous melanoma

2024-517062-42-00 Protocol IMA203-301 Therapeutic confirmatory (Phase III) Authorised, recruiting

Start 2 May 2025 · Status Authorised, recruiting · 3 EU/EEA countries · 17 sites · Protocol IMA203-301

Overview

Sponsor-declared trial summary

Phase Therapeutic confirmatory (Phase III)
Status Authorised, recruiting
Participants planned 384
Countries 3
Sites 17

melanoma, cutaneous malignant

To evaluate the efficacy of IMA203 compared with control (investigator’s choice)

Key facts

Sponsor
Immatics US Inc.
Participant type
Patients
Age range
18-64 years, 65+ years
Gender
Male and Female
Therapeutic area
Diseases [C] - Neoplasms [C04]
Trial duration
2 May 2025 → ongoing
Decision date (initial)
2026-04-20
Transition trial
No
Low-intervention
No
Rare-disease indication
No
Vulnerable population
Yes
Funding sources
Immatics US Inc · Immatics Biotechnologies GmbH

External identifiers

EU CT number
2024-517062-42-00
ClinicalTrials.gov
NCT06743126

Trial design

CTIS Part I — objectives, methods, condition coding

Main objective

Scope: Efficacy, Safety

To evaluate the efficacy of IMA203 compared with control (investigator’s choice)

Conditions and MedDRA coding

melanoma, cutaneous malignant

VersionLevelCodeTermSystem organ class
26.0 LLT 10088049 Cutaneous melanoma 100000004848

Study design 1 period

#TitleAllocationBlindingRoles blindedArms
1 Phase 3: Randomized trial (IMA203-301)
Comparison of IMA203 versus investigator’s choice of treatment in patients with previously treated, unresectable or metastatic cutaneous melanoma. The trial seeks to further evaluate the safety and efficacy of IMA203 administered at the recommended Phase 2 dose (RP2D).
Randomised Controlled None [{"id":167676,"code":1,"name":"Subject"}] Experimental arm: Lymphodepletion (LD) with cyclophosphamide (CY) and fludarabine (FLU) will occur in the days before the IMA203 product infusion to improve the duration of time that IMA203 product stays in the body. After the IMA203 product infusion, a low dose of interleukin (IL)-2 will be given.
Control arm (active comparator): Investigator’s choice of treatment as available and approved by the respective Competent Authority (nivolumab plus
relatlimab [Opdualag®], lifileucel, nivolumab,
pembrolizumab, ipilimumab, or chemotherapy [e.g., dacarbazine, temozolomide, paclitaxel, albbound
paclitaxel, or paclitaxel plus carboplatin]) as determined by the site investigator in accordance with current respective
prescribing information (PI) and/or summary of product characteristics (SmPC).

Regulatory references

Scientific advice from competent authorities
Paul-Ehrlich-Institut, Food And Drug Administration
Plan to share IPD
No

Eligibility criteria

Principal inclusion / exclusion criteria as submitted by sponsor

Inclusion criteria 8

  1. Patients ≥ 18 years of age
  2. Eastern Cooperative Oncology Group (ECOG) performance status 0 to 1
  3. Confirmed HLA status
  4. Adequate renal, hepatic and pulmonary function, acceptable coagulation status, adequate organ and marrow function
  5. Measurable disease according to RECIST 1.1
  6. Pathologically confirmed and documented cutaneous melanoma, CM patients with unresectable or metastatic (= advanced) disease who must have disease progression (resistance, toxicity) on or after at least one PD-1 inhibitor
  7. Patients with BRAF mutation should have been treated with one prior line of BRAF-directed therapy unless deemed not clinically indicated at Investigator’s discretion due to concurrent medical condition, prior toxicity, or if declined by the patient
  8. The patient must have recovered from any side effects of prior therapy to grade 1 or lower prior to randomization, and prior to LD and subsequent treat-ment

Exclusion criteria 8

  1. Primary mucosal or uveal melanoma
  2. History of other malignancies within the last 3 years
  3. Patients with prior allogeneic stem-cell transplantation or solid-organ transplantation
  4. The patient is pregnant or is breastfeeding.
  5. History of hypersensitivity to treatment in the IMA203 arm or rescue medications or presence of any contraindications and other limitations for planned treatment with investigator’s choice
  6. Any condition contraindicating leukapheresis
  7. The patient has concurrent severe and/or uncontrolled medical disease. Any other condition that would, in the investigator’s judgement, contraindicate the patient’s participation in the clinical trial because of safety concerns or com-pliance with clinical trial procedures
  8. Patients with active brain metastases or leptomeningeal metastases at VA/VB

Endpoints

Primary and secondary outcome measures (English text)

Primary endpoints 1

  1. Progression-free survival (PFS), centrally assessed by a Blinded Independent Central Review (BICR) using RECIST 1.1

Investigational products

Investigational medicinal products (IMPs), comparators, placebo, auxiliary

Test 1

IMA203

PRD7629213 · Product

Active substance
Autologous T-Cells Transduced with the Lentiviral LV-R11KEA Encoding T-Cell Receptor Targeting Patient-Specific Tumor-Associated Antigens
Pharmaceutical form
DISPERSION FOR INFUSION
Route of administration
INTRAVENIOUS INFUSION
Max daily dose
10000000000 DF dosage form
Max total dose
10000000000 DF dosage form
Max treatment duration
1 Day(s)
Authorisation status
Not Authorised
MA holder
IMMATICS US INC.
Paediatric formulation
No
Orphan designation
No

Comparator 11

Temozolomide

SUB10889MIG · Substance

Active substance
Temozolomide
Pharmaceutical form
POWDER FOR SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS INFUSION
Max daily dose
200 mg/m2 milligram(s)/sq. meter
Max total dose
8000 mg/m2 milligram(s)/sq. meter
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Temozolomide

SUB10889MIG · Substance

Active substance
Temozolomide
Pharmaceutical form
HARD CAPSULES
Route of administration
ORAL
Max daily dose
200 mg/m2 milligram(s)/sq. meter
Max total dose
8000 mg/m2 milligram(s)/sq. meter
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Paclitaxel Albumin-Bound

SUB127678 · Substance

Active substance
Paclitaxel Albumin-Bound
Pharmaceutical form
POWDER FOR DISPERSION FOR INFUSION
Route of administration
INTRAVENOUS INFUSION
Max daily dose
100 mg/m2 milligram(s)/sq. meter
Max total dose
2400 mg/m2 milligram(s)/sq. meter
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Nivolumab

SUB122750 · Substance

Active substance
Nivolumab
Pharmaceutical form
SOLUTION FOR INJECTION
Route of administration
SUBCUTANEOUS INJECTION
Max daily dose
1200 mg milligram(s)
Max total dose
9600 mg milligram(s)
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Nivolumab

SUB122750 · Substance

Active substance
Nivolumab
Pharmaceutical form
CONCENTRATE FOR SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS INFUSION
Max daily dose
480 mg milligram(s)
Max total dose
3840 mg milligram(s)
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Pembrolizumab

SUB167136 · Substance

Active substance
Pembrolizumab
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS INFUSION
Max daily dose
400 mg milligram(s)
Max total dose
2000 mg milligram(s)
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Dacarbazine

SUB06882MIG · Substance

Active substance
Dacarbazine
Pharmaceutical form
POWDER FOR SOLUTION FOR INJECTION OR INFUSION
Route of administration
INTRAVENOUS INJECTION
Max daily dose
250 mg/m2 milligram(s)/sq. meter
Max total dose
12500 mg/m2 milligram(s)/sq. meter
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Ipilimumab

SUB29397 · Substance

Active substance
Ipilimumab
Pharmaceutical form
CONCENTRATE FOR SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS INFUSION
Max daily dose
3 mg/kg milligram(s)/kilogram
Max total dose
12 mg/kg milligram(s)/kilogram
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Paclitaxel

SUB09583MIG · Substance

Active substance
Paclitaxel
Pharmaceutical form
CONCENTRATE FOR SOLUTION FOR INFUSION
Route of administration
INTRAVENIOUS INFUSION
Max daily dose
225 mg/m2 milligram(s)/square meter
Max total dose
2250 mg/m2 milligram(s)/square meter
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Carboplatin

SUB06614MIG · Substance

Active substance
Carboplatin
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS INFUSION
Max daily dose
900 mg milligram(s)
Max total dose
9000 mg milligram(s)
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
- — -
Marketing authorisation
-
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Opdualag 240 mg/80 mg concentrate for solution for infusion

PRD9942315 · Product

Active substance
Nivolumab
Substance synonyms
BMS936558, ABP 206
Pharmaceutical form
SOLUTION FOR INFUSION
Route of administration
INTRAVENOUS INFUSION
Max daily dose
480 mg milligram(s)
Max total dose
3840 mg milligram(s)
Max treatment duration
8 Month(s)
Authorisation status
Authorised
ATC code
L01FY02 — -
Marketing authorisation
EU/1/22/1679/001
MA holder
BRISTOL-MYERS SQUIBB PHARMA EEIG
MA country
EU
Paediatric formulation
No
Orphan designation
No
Modified vs. Marketing Authorisation
No

Sponsors and contacts

Sponsor organisations, regulatory contacts, third parties

Immatics US Inc.

Sponsor organisation
Immatics US Inc.
Address
13203 Murphy Road
City
Stafford
Postcode
77477-4303
Country
United States

Scientific contact point

Organisation
Immatics US Inc.
Contact name
Clinical Development

Public contact point

Organisation
Immatics US Inc.
Contact name
Clinical Development

Third parties 15

OrganisationCity, countryDuties
Medidata Solutions Inc.
ORG-100016256
New York, United States Other, E-data capture
Metronomia Clinical Research GmbH
ORG-100012892
Munich, Germany Code 10, Other
Veeva Systems Inc.
ORG-100006053
Pleasanton, United States Other
Discovery Life Sciences Biomarker Services GmbH
ORG-100042520
Kassel, Germany Laboratory analysis
Cogitars GmbH
ORG-100044720
Heidelberg, Germany Code 10
CCR Creative Clinical Research GmbH Privates Institut fuer Kreative Klinische Forschung
ORG-100052836
Berlin, Germany Code 13
Imaging Endpoints II LLC
ORG-100045399
Scottsdale, United States Other
Cerba Research
ORG-100042694
Gent, Belgium Other, Laboratory analysis
ProtaGene CGT GmbH
ORG-100041450
Heidelberg, Germany Laboratory analysis
Bioagilytix Labs LLC
ORG-100013030
Morrisville, United States Laboratory analysis
Genewiz Germany GmbH
ORG-100049496
Leipzig, Germany Laboratory analysis
spm²-safety projects & more GmbH
ORG-100013935
Hirschberg An Der Bergstrasse, Germany Code 8
MicroCoat Biotechnologie GmbH
ORG-100031937
Bernried Am Starnberger See, Germany Laboratory analysis
Angle Europe Limited
ORG-100051451
Guildford, United Kingdom Laboratory analysis
Winicker-Norimed GmbH Medizinische Forschung
ORG-100035700
Nuremberg, Germany Code 11

Locations

3 EU/EEA countries · 17 investigational sites

By country

CountryMS statusPlanned subjectsSites
France Authorised, recruitment pending 12 3
Germany Ongoing, recruiting 84 11
Netherlands Authorised, recruitment pending 12 3
Rest of world
United States
276

Investigational sites

France

3 sites · Authorised, recruitment pending
Institut Gustave Roussy
Dermatology, 114 Rue Edouard Vaillant, 94800, Villejuif
Centre Hospitalier Universitaire De Lille
Dermatology, Rue Michel Polonowski, 59000, Lille
Assistance Publique Hopitaux De Paris
Hôpital Saint Louis Dermatology, 1 Avenue Claude Vellefaux, 75010, Paris

Germany

11 sites · Ongoing, recruiting
Technische Universitaet Dresden
Early Clinical Trial Unit (NCT/UCC ECTU), Fetscherstrasse 74, Johannstadt-Nord, Dresden
University Medical Center Hamburg-Eppendorf
Klinik und Poliklinik für Dermatologie und Venerologie, Martinistrasse 52, Eppendorf, Hamburg
Universitaetsklinikum Essen AöR
Department for Dermatology, Hufelandstrasse 55, Holsterhausen, Essen
Universitaetsklinikum Erlangen AöR
Department of Dermatology, Ulmenweg 18, Innenstadt, Erlangen
Universitaetsklinikum Bonn AöR
Medizinische Klinik und Poliklinik III, Venusberg-Campus 1, Venusberg, Bonn
Universitaetsklinikum Heidelberg AöR
DermatoOnkologie der Hautklinik im Nationalen Centrum für Tumorerkrankungen (NCT), Im Neuenheimer Feld 460, Neuenheim, Heidelberg
Universitaet Leipzig
Klinik und Poliklinik für Dermatologie, Venerologie und Allergologie, Philipp-Rosenthal-Strasse 23, Zentrum-Suedost, Leipzig
Universitaetsmedizin der Johannes Gutenberg-Universitaet Mainz KöR
III. Medizinische Klinik und Poliklinik, Langenbeckstrasse 1, Oberstadt, Mainz
Goethe University Frankfurt
Abteilung für Dermatologie, Venerologie und Allergologie, Theodor-Stern-Kai 7, 60590, Frankfurt Am Main
Charite Universitaetsmedizin Berlin KöR
Klinik für Hämatologie und Onkologie, Comprehensive Cancer Center (CCC), Hindenburgdamm 30, Lichterfelde, Berlin
University Hospital Cologne AöR
Klinik und Poliklinik für Dermatologie und Venerologie, Kerpener Strasse 62, Lindenthal, Cologne

Netherlands

3 sites · Authorised, recruitment pending
Het Nederlands Kanker Instituut-Antoni van Leeuwenhoek Ziekenhuis Stichting
Centrum voor Celtherapie, Plesmanlaan 121, 1066 CX, Amsterdam
Universitair Medisch Centrum Groningen
Medical Oncology, Hanzeplein 1, 9713 GZ, Groningen
Erasmus Universitair Medisch Centrum Rotterdam (Erasmus MC)
Medical Oncology, Dr. Molewaterplein 40, 3015 GD, Rotterdam

Country notifications

Trial-start, recruitment-start, end and early-termination notifications submitted per Member State

Country Trial startTrial end Recruitment startRecruitment end Early termination
Germany 2025-05-02 2025-05-02

Results and documents

Annex IV summary of results, Annex V layperson summary, and all documents registered in CTIS for this trial

Documents 62 files

Public protocol annexes, IB summaries, regulatory submissions and post-authorisation documents registered in CTIS.

TypeTitleVersion
Protocol (for publication) D1_Protocol 2024-517062-42-00_Redacted 3
Protocol (for publication) D4_EORTC QLQ-C30_DE_EN_Redacted 3
Protocol (for publication) D4_EQ-5D-5L_DE_EN_Redacted 1
Protocol (for publication) D4_Patient Card_DE_Redacted 2
Protocol (for publication) D4_Patient questionnaire_DE_EN_Redacted 1
Recruitment arrangements (for publication) K1_Recruitment arrangements_document additionnel_FR_Redacted 1
Recruitment arrangements (for publication) K1_Recruitment arrangements_FR_Redacted 1
Recruitment arrangements (for publication) K1_Recruitment arrangements_NL_Redacted 2
Recruitment arrangements (for publication) K1_Recruitment arrangements_Redacted 4
Recruitment arrangements (for publication) K2_Recruitment material_graphical overview_DE_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_graphical overview_EN_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_graphical overview_EN_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_graphical overview_EN_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_graphical overview_FR_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_graphical overview_NL_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_IMA203-301 trial website_DE_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_IMA203-301 trial website_EN_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_IMA203-301 trial website_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_IMA203-301 trial website_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_social media posts_Redacted 1
Recruitment arrangements (for publication) K2_Recruitment material_social media posts_Redacted 1
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF1_DE_Redacted 4
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF1_EN_Redacted 4
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF1_EN_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF1_FR_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF1_NL_Redacted 3
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF2_DE_Redacted 5
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF2_EN_Redacted 5
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF2_EN_Redacted 3
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF2_FR_Redacted 3
Subject information and informed consent form (for publication) L1_SIS and ICF_adults ICF2_NL_Redacted 4
Subject information and informed consent form (for publication) L1_SIS and ICF_adults legal guardian_DE_Redacted 1
Subject information and informed consent form (for publication) L1_SIS and ICF_adults legal guardian_EN_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults optional biosample_DE_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults optional biosample_EN_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults pregnant partner_DE_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults pregnant partner_EN_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults pregnant partner_EN_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults pregnant partner_FR_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_adults pregnant partner_NL_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_Greenphire_ICF_DE_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_Greenphire_ICF_EN_Redacted 2
Subject information and informed consent form (for publication) L1_SIS and ICF_Greenphire_ICF_EN_Redacted 1
Subject information and informed consent form (for publication) L1_SIS and ICF_Greenphire_ICF_FR_Redacted 1
Subject information and informed consent form (for publication) L1_SIS and ICF_pregnancy follow-up_DE_Redacted 1
Subject information and informed consent form (for publication) L1_SIS and ICF_pregnancy follow-up_EN_Redacted 1
Subject information and informed consent form (for publication) L1_SIS_Privacy Notice_DE_Redacted 1
Subject information and informed consent form (for publication) L1_SIS_Privacy Notice_EN_Redacted 1
Subject information and informed consent form (for publication) L2_Other subject information material description_IMA203_301_Pathway_DE_Redacted 1
Subject information and informed consent form (for publication) L2_Other subject information material description_IMA203_301_Pathway_EN_Redacted 2
Subject information and informed consent form (for publication) L2_Other subject information material description_IMA203_301_Pathway_EN_Redacted 2
Subject information and informed consent form (for publication) L2_Other subject information material description_IMA203_301_Pathway_FR_Redacted 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Alb-bound Paclitaxel 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Carboplatin 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Dacarbazine 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Ipilimumab 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Nivolumab 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Opdualag 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Paclitaxel 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Pembrolizumab 1
Summary of Product Characteristics (SmPC) (for publication) E2_SmPC_Temozolomide 1
Synopsis of the protocol (for publication) D1_Protocol layperson synopsis_DE 2024-517062-42-00_Redacted 2

Application history

6 submissions — initial application plus substantial / non-substantial modifications

#TypeCodeSubmittedReference MSConclusionDecision date
1 INITIAL IN 2025-01-15 Germany Acceptable
2025-04-15
2025-04-16
2 SUBSTANTIAL MODIFICATION SM-1 2025-06-18 Germany Acceptable
2025-08-26
2025-08-26
3 SUBSTANTIAL MODIFICATION SM-3 2025-10-14 Germany Acceptable
2025-12-18
2025-12-18
4 SUBSEQUENT ADDITION OF MSC APP-4 2026-01-21 Acceptable
2025-12-18
2026-04-20
5 SUBSEQUENT ADDITION OF MSC APP-5 2026-01-21 Acceptable
2025-12-18
2026-04-13
6 SUBSTANTIAL MODIFICATION SM-4 2026-01-23 Germany Acceptable 2026-03-04