Proton Versus Photon Therapy in Anal Squamous Cell Carcinoma

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUmeå University

About this trial

Dosimetric studies suggest that radiotherapy with protons has a potential to reduce side effects compared to treatment with photons for patients with anal carcinoma (AC). There are so far no studies comparing these treatment techniques in a randomised setting. The aim of this study is to compare side effects following photon therapy versus proton therapy within the framework of a randomised controlled trial.

Eligibility criteria

Qualifiers

The patient must be at least 18 years old

Histologically confirmed, previously untreated squamous cell carcinoma (p16-positive or p16-negative) of the anal canal (ICD-O-3 C21), i.e. cancer of the perianal skin without connection to the anal canal are not included. The patients may have primary tumour, regional nodes, metastasis (TNM)-stage T2 (>4 cm) -4,N0-1c,M0 (UICC 8th edition).

World Health Organisation/Eastern Cooperative Oncology Group (WHO/ECOG) performance status 0-1

The patient must be able to understand the information about the treatment and give a written informed consent.

Disqualifiers

Patients with cancer of the perianal skin without involvement of the anal canal (ICD-O-3 C44.5) are not eligible.

Patient judged to have any other treatment than radiotherapy with concomitant chemotherapy as the preferred treatment

Concomitant or previous malignancies. Exceptions are, adequately treated basal cell carcinoma or squamous cell carcinoma of the skin or, other previous malignancy with a disease-free interval of at least 5 years.

Two or more synchronous primary cancers in the pelvic region at time of diagnosis

Trial design

Treatments tested in this trial

  • Proton radiotherapy
  • Photon radiotherapy

Treatment groups

100 Participants
are divided into 2 treatment groups

Sponsors and collaborators

Umeå University

Lead sponsor

Region Västerbotten

Collaborator

Uppsala County Council, Sweden

Collaborator