Active clinical trials for "Anus Neoplasms"

The purpose of this study is to establish a prospective database of anal canal and perianal cancer patients treated with IMRT and chemotherapy with curative intent at PMH for the purposes of investigating MRI-derived primary tumor parameters. Patients who decide to participate in this study will be treated according to standard treatment policies and radiation therapy planning protocols at Princess Margaret Hospital (PMH) with radiation therapy +/- chemotherapy. IMRT for all treatment phases of radiotherapy has been implemented as standard treatment. Surgery is reserved for salvage treatment.

We have an active research program in gastrointestinal cancers including clinical trials, epidemiologic, and translational studies. We would like to establish a biospecimen bank linked to useful clinical information in order to learn more about diagnostic, predictive and prognostic markers for gastrointestinal cancers. PRIMARY OBJECTIVES: 1. To collect and store tumor and normal tissue (previously collected paraffin embedded or frozen specimen) and blood in patients with gastrointestinal (GI) cancers. SECONDARY OBJECTIVES: Collect detailed clinical information via a patient questionnaire that includes demographic, socioeconomic, lifestyle, family, past medical, medication and cancer histories Collect details about the tumor specimen extracted from patient charts.

Collect blood samples and associated clinical data prior to, during, and post radiation treatment.

Evaluation of the 3-years anal carcinoma (AC) incidence in patient with anal AIN3 lesions, and factors associated with this AC. A retrospective cohort study will be conducted (2000-2013) followed by a prospective cohort study (starting in 2013) with new diagnoses of anal AIN3 lesion. The main outcome is histology proven AC. The 3-years incidence rate of AC will be calculated. Factors associated with AC will be estimated using a multivariate Cox regression model.

The study's aim is to define imaging and molecular bio-markers for prediction of radiotherapy response of squamous cell carcinomas, in an early treatment phase.

The purpose of the study is to evaluate the predictive value of 18F-fluoromisonidazol-PET (FMISO-PET), 2-18F-fluoro-2-deoxy-d-glukose-PET-CT (FDG-PET-CT), Diffusion-Weighted Magnetic Resonance Imaging (DWI-MRI) and Dynamic Contrast-Enhanced Magnetic Resonance Imaging (DCE-MRI) for patients with anal cancer receiving radiation therapy +/- chemotherapy (Cisplatin and 5-FU).