Evaluation of the CIRCA Monitoring System in Prevention of Esophageal Lesions Following RFCA (CIRCA-EGD)
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|ClinicalTrials.gov Identifier: NCT02467166|
Recruitment Status : Recruiting
First Posted : June 9, 2015
Last Update Posted : May 1, 2018
|Condition or disease||Intervention/treatment||Phase|
|Atrial Fibrillation||Device: Circa™ Probe||Not Applicable|
Dr. Gregory Feld, M.D. is conducting a research study to find out more about the short-term effects on the esophagus of left atrial ablation (guided by Circa™ esophageal temperature monitoring system). The financial supporter of this study is Circa Scientific, LLC.
When the investigators perform a radiofrequency catheter ablation (RFCA) at UCSD, the investigators routinely use the Circa™ temperature monitor system to prevent damage to the esophagus. For this study, patients will receive an esophagoscopy, a procedure in which a flexible tube with a camera is inserted through the mouth into the esophagus. The esophagoscopy will be conducted the next day following the ablation procedure to examine the lining of the esophagus for possible lesions or damage. Patients are asked to participate in this study because they are scheduled to have an ablation for atrial fibrillation (AF). There will be approximately 40 participants in this study at the University of California, San Diego (UCSD) Cardiovascular Center. The use of the Circa™ temperature monitoring system used in standard ablation procedures at UCSD and will be used whether or not patients decide to participate in this study. Using esophagoscopy, this study will evaluate the lining of the esophagus, or swallowing tube between the throat and stomach, the day following atrial fibrillation ablation by using an endoscope, flexible tube equipped with a camera.
Patients enrolled in the study will proceed to their standard of care ablation procedure for treatment of atrial fibrillation. There will be no changes to the ablation as part of this research study. The Circa™ temperature monitor system will be used throughout the ablation as is standard clinical care for all patients receiving AF ablations at UCSD. For research purposes only, patients will undergo an esophagoscopy, or endoscopic evaluation of the esophagus, the next day following the atrial fibrillation ablation. This procedure will take 40-45 minutes, and will involve inserting a flexible probe (tube) with a camera, into the throat and esophagus (swallowing tube), where it will be inspected for any damage (thermal lesions) caused during the ablation procedure.
Following the procedure, patients will be monitored in the usual fashion in the procedure treatment unit (PTU), as is standard of care following AF ablation. Ablation patients will be discharged from the hospital in a standard manner after esophagoscopy and asked to schedule a follow-up appointment following ablation, as is standard of care. There will not be any research follow-up for this study. If for any reason patients cannot complete the ablation or esophagoscopy procedure, patient will be withdrawn from study.
|Study Type :||Interventional (Clinical Trial)|
|Estimated Enrollment :||40 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Official Title:||A Prospective, Non-Randomized Study to Evaluate the CIRCA Esophageal Temperature Monitoring System in Prevention of Esophageal Lesions Following Atrial Fibrillation Radiofrequency Catheter Ablation|
|Study Start Date :||June 2015|
|Estimated Primary Completion Date :||October 2018|
|Estimated Study Completion Date :||October 2018|
Experimental: Circa™ Probe
The Circa™ Probe will be used during the RFCA to monitor esophageal temperature. Following ablation, the esophagoscopy will be performed to examine the esophagus for resulting thermal lesions.
Device: Circa™ Probe
The Circa™ probe will be used to monitor esophageal temperature and guide ablation power and duration during the RFCA procedure. Following ablation esophagoscopy will be performed to assess for esophageal lesions.
- The number of lesions, if any, will be counted to determine the efficacy of the Circa temperature probe in conjunction with the RFCA procedure in reducing lesion formation. [ Time Frame: Day 1 ]
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02467166
|Contact: Maylene Alegre, BHSfirstname.lastname@example.org|
|United States, California|
|Sulpizio Cardiovascular Center||Recruiting|
|La Jolla, California, United States, 92037|
|Contact: Jessica Hunter, BHS 858-246-2402 email@example.com|
|Principal Investigator: Gregory Feld, MD|
|Principal Investigator:||Gregory Feld, MD||UC San Diego|