PRIMARY OBJECTIVE:~I. To review clinical endoscopy reports, pathology reports, and other medical records related to standard-of-care endoscopic evaluations for all participants in the parent study, MAY2016-07-01, to determine the extent of reports of rapid progression of recurrent polyps after completion intervention and follow up under the parent protocol.~OUTLINE:~Patients who participated in MAY2016-07-01 undergo review of medical records.
This study reviews post study clinical endoscopy reports in follow up to patients who participated in MAY2016-07-01 with weekly erlotinib for familial adenomatous polyposis. Reviewing follow up medical records may help researchers examine the extent of rapid progression of familiar adenomatous polyposis disease burden after discontinuation of weekly erlotinib.