Clinical Impact of the Withdrawal of Nitrate in Patients With Stable

Status Completed

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

Clinical Trial Details

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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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.

Clinical Impact of the Withdrawal of Nitrate in Patients With Stable Angina

Clinical Trial Summary

Clinical Trial Description

Study Design

Related Conditions & MeSH terms