Adjuvant Tebentafusp in High Risk Ocular Melanoma
ATOM
Adjuvant Tebentafusp (IMCgp100) Versus Observation in HLA-A*02:01 Positive Patients Following Definitive Treatment of High-risk Uveal Melanoma: an EORTC Randomized Phase III Study (ATOM Trial)
2 other identifiers
interventional
290
9 countries
15
Brief Summary
At least 50% of patients with high-risk primary uveal melanoma will develop a recurrence following treatment of the primary tumour. Observation is currently the standard of care in the non-metastatic setting. Tebentafusp is the first agent proven to improve overall survival in patients with metastatic uveal melanoma in a randomized trial. Based on the results in the advanced setting, it is hypothesized that treatment with tebentafusp may reduce the risk of development of disease recurrence.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for phase_3
Started Nov 2024
Longer than P75 for phase_3
15 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 30, 2024
CompletedFirst Posted
Study publicly available on registry
February 7, 2024
CompletedStudy Start
First participant enrolled
November 11, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 1, 2032
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 1, 2032
June 30, 2026
June 1, 2026
8 years
January 30, 2024
June 29, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Recurrence-Free survival (RFS)
RFS is defined as the time between randomization and local recurrence, distant recurrence, or death, whichever occurs first
8.1 years from first patient in
Secondary Outcomes (3)
Overall Survival (OS)
8.1 years from first patient in
Occurrence of Adverse Events
8.1 years from first patient in
Health-related Quality of Life
8.1 years from first patient in
Study Arms (2)
Tebentafusp
EXPERIMENTALParticipants will receive tebentafusp 20 mcg on week 1, 30 mcg on week 2, 68 mcg on week 3, and 68 mcg weekly thereafter for 6 months i.e., maximum 26 infusions.
Observation
NO INTERVENTIONInterventions
Eligibility Criteria
You may qualify if:
- Primary non-metastatic UM, except iris melanoma, after definitive treatment either by surgery or radiotherapy
- Time from primary treatment smaller than 11 weeks (note that the maximum time between primary treatment and randomization is 12 weeks )
- High-risk according to either 1) clinical criteria: TNM (AJCC8) stage III or 2) genetic criteria: monosomy 3 or GEP class 2. Prior to enrolment of the first patient, each site will declare which of the two genetic criteria it uses. Patients with stage I and stage II are only eligible if they meet the genetic criterion declared by the site.
- ECOG performance status of 0 or 1
- years or older
- HLA-A\*02:01 positivity by local assessment
- No evidence of UM recurrence, as evidenced by the required baseline imaging performed within 4 weeks prior to randomization
- Adequate organ function
- Time-interval between the end of primary treatment and the randomization less than or equal to 12 weeks
- Evidence of post-menopausal status or negative urinary or serum pregnancy test for women of childbearing potential (WOCBP) within 3 days prior to randomization.
- For patients of childbearing / reproductive potential, agreement to use adequate birth control measures during the study treatment period and for at least 6 months after the last dose of treatment. A highly effective method of birth control is defined as a method which results in a low failure rate (i.e., less than 1% per year) when used consistently and correctly.
- For female subjects who are breast feeding, agreement to discontinue nursing prior to the first dose of study treatment and until 6 months after the last study treatment.
- Written informed consent according to ICH/GCP and local regulations
You may not qualify if:
- Clinically significant cardiac disease or impaired cardiac function, including any of the following:
- Clinically significant and/or uncontrolled heart disease such as congestive heart failure (New York Heart Association grade ≥ 2), uncontrolled hypertension, or clinically significant arrhythmia currently requiring medical treatment
- QTcF \> 470 msec on screening electrocardiogram (ECG) or congenital long QT syndrome based on at least 3 ECGs obtained over a brief time interval (i.e., within 30 minutes)
- Acute myocardial infarction or unstable angina pectoris \< 6 months prior to screening
- Active infection requiring systemic antibiotic therapy. Patients requiring systemic antibiotics for infection must have completed therapy at least 1 week prior to randomization
- Any evidence of severe or uncontrolled systemic disease or active infection including hepatitis B, hepatitis C and known active human immunodeficiency virus (HIV) defined as \>200 copies of HIV per ml of blood, active bleeding diatheses or renal transplant. NOTE: testing for HIV, HBV, and HCV status prior to enrolment is not necessary unless clinically indicated.
- Participant with history of HBV infection will be eligible if on stable anti-viral therapy for \> 4 weeks prior to the planned first dose of study intervention and viral load confirmed as undetectable during Screening.
- Participant with history of HBC infection will be eligible the participant has received curative treatment and viral load was confirmed as undetectable during Screening.
- History of another primary malignancy except for adequately treated basal or squamous cell carcinoma of the skin or cancer of the cervix in situ and with the following exception. Patients with a history of another primary cancer treated with curative intent more than 3 years before study entry, who are not receiving any anti-cancer therapy, have a risk of disease recurrence lower than 10% as evaluated by the local Investigator, and who have no toxicity from previous treatment are eligible.
- Participants with active autoimmune disease requiring immunosuppressive treatment, including inflammatory bowel disease (ulcerative colitis or Crohn's disease), within 2 years of screening. NOTE: The following exceptions are permitted:
- Vitiligo
- Alopecia
- Managed hypothyroidism (on stable replacement doses)
- Asymptomatic adrenal insufficiency (on stable replacement doses)
- Psoriasis
- +5 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- European Organisation for Research and Treatment of Cancer - EORTClead
- Northwell Healthcollaborator
- Immunocore Ltdcollaborator
Study Sites (15)
Northwell Health -Center for Advanced Medicine
Lake Success, New York, 11042, United States
Cliniques Universitaires Saint-Luc
Brussels, 1200, Belgium
Centre Antoine Lacassagne
Nice, FR 06189, France
Institut Curie - Hôpital de Paris
Paris, 75248, France
Charite - Universitaetsmedizin Berlin - Campus Benjamin Franklin
Berlin, 12200, Germany
Universitaets Krankenhaus Eppendorf - Universitaetsklinikum Hamburg-Eppendorf KE - University Cancer Center
Hamburg, 20246, Germany
Universitaetsklinikum Heidelberg - Frauenklinik / Hautklinik
Heidelberg, DE 69120, Germany
Leiden University Medical Centre
Leiden, 2300, Netherlands
Erasmus MC
Rotterdam, NL 3015 GD, Netherlands
Maria Sklodowska-Curie Memorial Cancer Centre - Maria Sklodowska-Curie National Research Institute of Oncology
Warsaw, 02 781, Poland
Institut Catala d'Oncologia - ICO L'Hospitalet - Hospital Duran i Reynals (Institut Catala D'Oncologia)
L'Hospitalet de Llobregat, 08908, Spain
Hospital Clinico Universitario De Valladolid
Valladolid, 47003, Spain
Sahlgrenska Universitetssjukhuset
Gothenburg, SE 413 45, Sweden
The Clatterbridge cancer Center NHS foundation Trust - Clatterbridge Cancer Center - Liverpool
Liverpool, GB L7 8YA, United Kingdom
East and North Hertfordshire NHS Trust - Mount Vernon Hospital
Northwood, HA6 2RN, United Kingdom
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Paul Nathan
Mount Vernon Cancer Centre, Northwood, UK
- PRINCIPAL INVESTIGATOR
Richard D. Carvajal
Northwell Health Cancer Institute, NY, USA
- PRINCIPAL INVESTIGATOR
Serge Leyvraz
Charité Hospital, Berlin, Germany
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- NETWORK
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 30, 2024
First Posted
February 7, 2024
Study Start
November 11, 2024
Primary Completion (Estimated)
November 1, 2032
Study Completion (Estimated)
November 1, 2032
Last Updated
June 30, 2026
Record last verified: 2026-06