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Spots Global Cancer Trial Database for Photodynamic Therapy (PDT) for Palliation of Cholangiocarcinoma

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Trial Identification

Brief Title: Photodynamic Therapy (PDT) for Palliation of Cholangiocarcinoma

Official Title: Open-label Observational Study of Plastic Cylindrical Fiber Optic Diffuser (Pioneer Optics) in Photodynamic Therapy for the Management of Cholangiocarcinoma.

Study ID: NCT01755013

Study Description

Brief Summary: Successful palliation of biliary obstruction is the main goal for reducing morbidity and mortality in patients with biliary disease and biliary obstruction related to cholangiocarcinoma. Surgical intervention for the sale is unfortunately complicated by a 30-day postoperative mortality rate of between 7 and 24%. Moreover, because of recovery time the quality of life following surgery is only improved in a minority. At present endoscopic insertion of a plastic or metal stent is the method of choice to relieve obstructive jaundice without the high morbidity and mortality associated with surgery. But this relief is unfortunately temporary since stents tend to become obstructed and the fact that effective biliary drainage in the proximal lesion is challenging. Photodynamic Therapy (PDT) is a new therapeutic approach that specifically targets neoplastic cells. This therapy involves the intravenous administration of a photosensitizing agent followed by activation of the agent by illumination with non-thermal light of a specific wavelength, resulting in cell death from direct cytotoxicity and ischemic necrosis. A randomized controlled trial study by Ortner et all confirmed the significant advantage of PDT with regard to relief of jaundice, quality of life, and survival. In photodynamic therapy (PDT) the uniform distribution of externally applied light is desirable but often difficult to achieve. An optical fiber tip producing cylindrical or lateral light emission can facilitate the application of laser energy by direct implantation of the tip into solid tumors. However, currently used FDA approved glass diffusers used in standard of care PDT might break in the bile ducts causing injury since they are not meant to be used within bile ducts through an endoscope or choledochoscope. Hence, there is a need to evaluate and introduce more efficient and safe non-glass cylindrical optic fiber diffuser for photo dynamic therapy in the bile ducts. Recent studies have shown that the Pioneer plastic optic diffuser is safe and effective in photodynamic therapy, it can be also used via a choledochoscope. We aim to add to the clinical evidence by conducting an open label observational study trial using this fiber optic diffuser during photo dynamic therapy in the bile ducts.

Detailed Description: Cholangiocarcinoma (CCA) is the second most common malignancy arising within the liver, and the association of this malignant condition with high morbidity and mortality is well recognized. It originates from the epithelium of bile ducts or ductules. Two types have been described: the peripheral type occurring in the parenchyma of the liver and the central type occurring within or related to the major bile ducts. Surgery can offer a curative chance, but only a minority of patients are candidates for this therapy at initial presentation since most patients are found with an unresectable tumor. In unresectable cases, the median survival is 6 months. Since morbidity and mortality from CCA occurs because of biliary obstruction, successful palliation of that complication is the main goal in these patients. Surgical biliary bypass can be offered in order to prolong life and relieve symptoms. This intervention is unfortunately complicated by 30-day postoperative mortality rate between 7 and 24%. Moreover, the quality of life following surgery is only improved in a minority because of the time needed to recover from surgery. Endoscopic biliary stenting during endoscopic retrograde cholangiopancreatography (ERCP) offers relief from obstructive jaundice without the high morbidity and mortality associated with surgery. In addition, a study by Luman et al even showed significant improvement in emotional, cognitive and global health scores following stenting. But this relief is unfortunately temporary since stents tend to become obstructed. Local therapies including iridium brachytherapy and photodynamic therapy (PDT) may prevent or postpone these problems. For more information about PDT, please see the 'Citations' section.

Eligibility

Minimum Age: 18 Years

Eligible Ages: ADULT, OLDER_ADULT

Sex: ALL

Healthy Volunteers: No

Locations

Weill Cornell Medical College, New York, New York, United States

Contact Details

Name: Michel Kahaleh, MD

Affiliation: Weill Medical College of Cornell University

Role: PRINCIPAL_INVESTIGATOR

Useful links and downloads for this trial

Clinicaltrials.gov

Google Search Results

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