Individual Following in Anal Cancer With PET/CT (IFACT)

June 11, 2026 updated by: Centre Antoine Lacassagne

Anal canal cancer is a relatively rare disease, representing 1.2% of digestive cancers and 6% of anorectal cancers. Incidence is less than 1/100 000 of the general population. However, the incidence has increased considerably over the past three decades. The main risk factors are HPV infections and smoking. Initial treatment comprises radiochemotherapy or radiotherapy alone, according to the patient's tumor stage and tolerance of chemotherapy. The choice of the most appropriate treatment strategy will condition the patient's prognosis. Consequently, early assessment of the initial extension of the tumor, its therapeutic response and relapses constitute determining factors in the management of the disease Despite the good results obtained, persistent disease is observed in 30% of cases and abdominal-pelvic salvage amputation can then prove effective in cases of local or loco-regional relapse. The great majority of relapses occur within 2 years after treatment. Reported prognostic survival factors are the T stage, size inferior or superior to 4 cm and inguinal or pelvic lymph node involvement.

The rules for follow-up are not substantiated by high levels of proof. Follow-up focuses principally on the clinical examination although the type and frequency of the paraclinical examinations are not backed by any consensus.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Post-treatment 18-FDG PET scan at 2 months can prove useful to predict locoregional or metastatic recurrence in patients treated by radiochemotherapy or radiotherapy in the anal canal cancer setting. There appear to be an FDG intensity variable and a metabolic response criterion enabling establishment of two groups of patients: low recurrence risk versus high recurrence risk at 2 years.

Study Type

Observational

Enrollment (Estimated)

110

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • France
      • Nice, France, 06000
        • Centre Antoine Lacassagne

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Probability Sample

Study Population

Canal anal cancer

Description

Inclusion Criteria:

  • Consecutive inclusion of incident cases of anal canal cancer between November 2014 and May 2018. These patients are volunteers and have signed informed consent.

Exclusion Criteria:

  • Presence of a nother cancer and specific treatment (chemotherapy, radiotherapy). Follow-up impossible during two years or more.

Refusal to submit to initial or post-treatment PET/CT.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
time of disease-free survival
Time Frame: 3 years
3 years

Secondary Outcome Measures

Outcome Measure
Time Frame
best metabolic response measurement variable: SUVmax
Time Frame: 3 years
3 years
best metabolic response measurement variable: SUVmean
Time Frame: 3 years
3 years
best metabolic response measurement variable: SUL peak
Time Frame: 3 years
3 years
best metabolic response measurement variable: Metabolic Total Volume (MTV)
Time Frame: 3 years
3 years
best metabolic response measurement variable: Total Lesion Glycolysis (TLG)
Time Frame: 3 years
3 years
best treatment response criterion: SUV or metabolic volume threshold
Time Frame: 3 years
3 years
best treatment response criterion: ratio (SUV or metabolic volume)
Time Frame: 3 years
3 years
best treatment response criterion: complete or partial metabolic response according to EORTC or PERCIST criteria
Time Frame: 3 years
3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Centre Antoine Lacassagne

Investigators

  • Study Director: LOVERA Christine, Centre Antoine Lacassagne

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

November 1, 2014

Primary Completion (Actual)

September 1, 2024

Study Completion (Actual)

September 1, 2024

Study Registration Dates

First Submitted

February 22, 2016

First Submitted That Met QC Criteria

February 26, 2016

First Posted (Estimated)

March 3, 2016

Study Record Updates

Last Update Posted (Actual)

June 12, 2026

Last Update Submitted That Met QC Criteria

June 11, 2026

Last Verified

June 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2014/54

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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