View clinical trials related to Anal Adenocarcinoma.
Filter by:Adenocarcinoma of the anus is rare. It concerns less than 10% of anal cancers and its incidence is less than 0.2/100 000 inhabitants. Its management is not consensual and is most often derived by analogy with that of adenocarcinoma of the lower rectum. This is due to the rarity but also to the diversity of anatomical (anal margin, anal canal, lower rectum), etiological (primary glandular tumors or secondary to anal fistula, primary distant tumor and/or Crohn's disease) and histological forms (mucinous, intestinal, glandular adenocarcinomas and primary or secondary Paget's disease). Most of the literature consists of small case series and simple clinical cases in which the prognosis of these subforms has not been studied.
Patients with locally advanced rectal and esophageal carcinomas typically undergo neoadjuvant chemoradiation therapy prior to surgical resection. While response rates to this treatment differ among these three cancers, generally 20-25% of patients exhibit minimal or no response to preoperative chemoradiation therapy while 20-30% exhibit a complete pathologic response, and the remainder receiving a partial response. This will be a multi-center study of patients with newly diagnosed rectal adenocarcinoma, or anal squamous cell carcinoma (SCC) who will undergo neoadjuvant chemoradiation prior to surgery. The tumor from these patients will be tested to determine whether response to neoadjuvant chemoradiation can be accurately predicted.