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Rational treatment selection for Merkel Cell Carcinoma (MCC)

Rational treatment selection for Merkel Cell Carcinoma (MCC): A randomised phase III multi-centre trial comparing radical surgery and radical radiotherapy as first definitive treatment for primary MCC with an observational study for patients ineligible for the randomised trial.

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN16290169
Enrollment
400
Registered
2016-03-09
Start date
2016-03-31
Completion date
Unknown
Last updated
2022-10-24

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Merkel cell carcinoma Cancer

Interventions

Participants are randomised to one of two study arms. Arm A - Prioritise surgery: WLE of the primary site with radiotherapy reserved for later adjuvant treatment in selected patients.

Sponsors

University of Birmingham
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: General inclusion criteria for all patients: 1. Patients newly diagnosed with histologically-proven MCC (either primary and/or regional nodal disease) 2. Completion of clinical and radiological staging investigations, including CT imaging (or other modality) of regional nodal basin(s) and major viscera (and SLNB if clinically appropriate) to identify regional and distant metastases 3. No distant metastases beyond the regional nodal basin (i.e. not stage IV disease) 4. Being considered for radical treatment to achieve long term disease control 5. Able to give valid informed consent 6. Consent for collection of data and tissue samples and follow up. 7. Life expectancy six months or greater in relation to general fitness and co-morbidities Additional inclusion criteria for rational compare: 1. Patients newly diagnosed with histologically-proven primary MCC 2. In the opinion of the SSMDT, the primary MCC can be encompassed both within a wide surgical margin and within a radiotherapy field, and the SSMDT is in equipoise regarding WLE or radiotherapy as first treatment 3. Consent for randomisation into Rational Compare

Exclusion criteria

Exclusion criteria: Exclusion criteria for rational compare only: 1. The primary MCC has already been treated radically with WLE (surgical margins >10 mm) or RT 2. Intended use of regional or systemic chemotherapy (including molecularly targeted agents and immunotherapy)

Design outcomes

Primary

MeasureTime frame
Time from randomisation to loco-regional treatment failure is determined from data collected throughout the study and up to 2 years of follow-up.

Secondary

MeasureTime frame
1. Progression free survival 2. Proportion of patients alive and free of disease 3. Quality of Life is measured at baseline, 3, 6, 9, 12 and 24 months from randomisation; 4. Survival 5. Time to distant progression 6. Time to local failure 7. Time to regional nodal failure

Countries

England, United Kingdom

Contacts

Public ContactRachel Blundred
rationalmcc@trials.bham.ac.uk+44 121 414 3792

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026