Intra-op Detection of Occult Ovarian Carcinoma Using a Folate-Alpha Receptor Specific Fluorescent Ligand
Prognosis for many carcinomas, including ovarian carcinoma, is dependent on a complete surgical resection, also known as a R0 resection. At present, the ability to perform a complete resection with negative margins is limited by the surgeon's ability to palpate and visualize the tumor and its margins. Therefore, in order to reduce operative morbidity and costs while maintaining or improving surgical and oncologic outcomes, the investigators must develop technologies that improve visualization of the primary tumor and occult metastases, real time, during surgery. Recent research has demonstrated that the use of fluorescent probes that recognize cancer specific antigens can be used for this purpose when visualized using a prototype near-infrared multispectral imaging system.
This investigation will determine if folate-FITC, a fluorescent probe that recognizes the folate receptor (present in > 90% of ovarian cancers) can facilitate surgical resection and detect tumor nodules not visible to the naked eye.
|Study Design:||Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
|Official Title:||Phase II, Prospective, Non-Randomized Trial Investigating the Intra-Operative Detection of Occult Ovarian Carcinoma Using a Folate-Alpha Receptor Specific Fluorescent Ligand|
- Sensitivity and specificity of intra-operative imaging using Folate-FITC for identification of ovarian cancer metastatic to the peritoneum and lymph nodes [ Time Frame: 1 week ]A maximum of 5 nodules less than 1cm in size will be identified in each patient with the naked eye and then visualized with the camera. The nodules will be biopsied after determining if they are fluorescent positive or negative (F+ or F-), and examined microscopically to confirm if carcinoma is present. Up to 5 F+ lesions that were not identified with the naked eye will also be biopsied and examined microscopically to determine if carcinoma is present. These data will establish the sensitivity and specificity of this technique using microscopic analysis as the gold standard.
- Confirmation of low to absent rates of significant adverse events following a one-time dose of folate-FITC (EC-17). [ Time Frame: Duration of hospitalization with a maximum of 7 days ]Subjects will be followed and all adverse events will be captured for the duration of hospitalization following administration of investigational product, up to a maximum of 7 days following IP administration and surgical procedure.
|Study Start Date:||January 2012|
|Study Completion Date:||June 2014|
|Primary Completion Date:||June 2014 (Final data collection date for primary outcome measure)|
One-time dose of Folate-FITC (EC-17), 0.1mg/kg IV 2-3 hours prior to surgery.
Other Name: Folate-FITC
Please refer to this study by its ClinicalTrials.gov identifier: NCT01511055
|United States, Minnesota|
|Rochester, Minnesota, United States, 55905|
|Principal Investigator:||Sean C Dowdy, MD||Mayo Clinic|