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Clinical Trial Summary

Chronic treatment of stable angina with nitrates long and short action is extremely frequent. In clinical practice the most commonly observed is a combination of anti-anginal agents, usually including nitrates fixed in an attempt to improve the quality of life of patients, which is not always met with success.

Numerous questions and problems are seen with chronic use of oral nitrates. From a practical standpoint, some advocate the withdrawal of medication in stable patients, while many physicians still hesitate to withdraw the medication by the lack of definitive information about its consequences. In this sense there is a rationale for the attempted removal of nitrate fixed these patients, although evidence to support this action have not been adequately evaluated.


Clinical Trial Description

The Ischemic Heart Disease remains in recent years as a major cause of mortality in most of the world, and also the disease that consumes more resources in health in industrialized countries. The use of fixed nitrate in patients with stable angina is quite common, but there is a scarcity of studies showing the need for this medication in this class pacientes.Este study aims to evaluate the consequences of the withdrawal of fixed nitrate in patients with stable angina class I and II, hemodynamically stable for the past six months, as the frequency and duration of episodes of angina, silent ischemia and functional capacity by exercise testing, 24-hour Holter and measurement of quality of life and adherence to therapy. For this purpose, a randomized blinded multicenter clinical trial was designed to placebo (intervention group) X nitrate (control group) in a follow-up period for 4 months. Both groups will receive three evaluations (baseline, 30 days and 120 days) during follow-up. ;


Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment


Related Conditions & MeSH terms


NCT number NCT01769079
Study type Interventional
Source Hospital de Clinicas de Porto Alegre
Contact
Status Completed
Phase Phase 4
Start date September 2009
Completion date December 2013

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