Comparison Between Two Different Parameters of Argon Plasma Coagulation in

Status Completed

Clinical Trial Summary

There is a wide variability of options for treatment of chronic radiation proctitis. However, studies are still limited, usually case reports from a single center and few are comparative studies between methods. Therefore, the choice of treatment is determined by availability and local expertise for each method. The variability of treatment options range from anti-inflammatory medical treatment, sucralfate, short chain fatty acids, antioxidants and hyperbaric oxygen to such endoscopic and surgical treatments. Surgery is usually the last therapeutic option due to the high morbidity and mortalityassociated. Various endoscopic treatment modalities have been reported. Formalin topic is effective in up to 48% of patients with chronic radiation proctitis.

The endoscopic treatment with argon plasma (APC) is low cost, easy to apply and transportation, safe and effective in the treatment of rectal bleeding in patients with chronic radiation proctitis. Currently, the APC is the preferred endoscopic modality.

Most studies on the use of APC in radiation proctitis showed benefit. The APC controls the mild to moderate rectal bleeding in 80% to 90% of cases and improves symptoms of urgency, diarrhea and tenesmus in 60% to 75% of cases.

Clinical Trial Description

APC is usually applied with a power of 40-60W and 1.2-2.5 L/min of gas flow by using a electrosugical generator coupled with an argon delivery unit. However, high gas flow have been associated to high rates of complication such as rectal stenosis and deep rectal ulcer.

In this context, the present study aims to compare the effectiveness and safety between two different paramenters of argon plasma coagulation (40-50W and 2.0 L/min of gas flow vs 40W and 1.2 L/min of gas flow) in the treatment of patients with symptomatic chronic radiation proctitis. ;

Study Design

Allocation: Non-Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT02104271
Study type	Interventional
Source	Barretos Cancer Hospital
Contact
Status	Completed
Phase	Phase 2
Start date	January 2013
Completion date	August 2015

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.

Comparison Between Two Different Parameters of Argon Plasma Coagulation in the Treatment of Chronic Radiation Proctitis: Historical Control Trial.

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms