An Open Dose-finding Study of Oral Applied Hexaminolevulinate (HAL) Imaging in Patients With Suspicion or High Risk of Neoplasia in the Colon

The purpose of the study is to determine if it is possible to detect more pre-cancerous lesions in colon when using fluorescence technology.

Carcinoma of the lower GI-tract is among the leading malignancies in the western world causing a substantial morbidity, mortality and consequently a large burden to the health care system in the diagnosis, treatment and follow-up of these patients.

The primary objectives of this study is to determine carcinoma- and adenoma lesion true detection rate of HAL fluorescence colonoscopy in patients with known or strong suspicion of neoplasia in the colon. The secondary objective and endpoints are to determine carcinoma- and adenoma lesion false detection rate of HAL fluorescence colonoscopy, to compare carcinoma- and adenoma lesion true detection rates and the false detection rates of fluorescence with standard colonoscopy and to characterize the safety profile of HAL fluorescence colonoscopy.

Inclusion Criteria:

• Female and Male subjects with known or strong suspicion iof adenoma or carcinoma of the colon after screening of follow-up colonoscopy
• Female and male patients with verified neoplastic lesions

Exclusion Criteria:

• Known or strong suspected porphyria
• Contraindications to colonoscopy