The clinical trial of image guided penile cancer surgery (GLANS)

The research company University Medical Center Groningen is conducting the clinical trial 'Image Guided Penile Cancer Surgery (GLANS)'.

The main treatment modality for Penile Squamous Cell Carcinoma (PSCC) is surgery with curative intent. In organ sparing surgery a tumor-positive margin of up to 36% exist. Tumor-positive surgical margins are an independent risk factor for local recurrence, which has been reported to be up to 18%. Tumor-positive margins always lead to extra, penile sparing surgery, which leads to longer hospitalization, higher exposure to anesthetic interventions and a worse psychological outcome.

Currently, no intraoperative imaging technique that provides real time feedback for resection margins exists in PSCC. Molecular fluorescence-guided Surgery (MFGS) using targeted near-infrared (NIR) optical contrast agents like for example Cetuximab-800CW is a promising technique to accommodate this need. Epidermal Growth Factor Receptor (EGFR) is overexpressed in PSCC and has safely and successfully been used as target for molecular imaging, particularly for assessment for tumor margins in head and neck squamous cell carcinoma (ICON study, UMCG1).

It is planned to include 15 participants.

Actual study start date is March 7, 2022. The researchers expect to complete the study by March 2025.

One primary outcome measure is Phase 1: Compare the spot to background ratio for tumor positive and tumor negative margins, The main purpose is to establish the intraoperative use of cetuximab-800CW as a reliable marker for residual tumor in resection margins after surgical removal of PSCC. The objective is to establish the feasibility of cetuximab-800CW fluorescence at the dose of 75/15 mg predose/dose combination as a marker for a tumor positive resection by comparing the spot to background ratios for tumor positive and tumor negative margins. A tumor to background ratio of >2.0 is aspired.

Further details can be found here

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