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Sponsored by: |
Assistance Publique - Hôpitaux de Paris |
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Information provided by: | Assistance Publique - Hôpitaux de Paris |
ClinicalTrials.gov Identifier: | NCT00603317 |
Several case reports indicate that the use of the antibiotic combination amoxicillin and clavulanic acid (AM-CLAVAC) can interact with warfarin pharmacodynamics. However, fever per se might also be responsible of these warfarin overdose reports, as well as the use of high dose paracetamol.
The aim of the present study is to determine if AM-CLAVAC can increase the pharmacodynamics of warfarin among patients at steady state Double blinded cross over controlled study vs placebo performed in 12 evaluable patients treated with warfarin with an INR target 2 to 3 and a stable INR and a stable dose.
Condition | Intervention | Phase |
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Oral Anticoagulation Deep Venous Thrombosis Atrial Fibrillation Pulmonary Embolism |
Drug: Firstly : Amoxicillin-Clavulanic acid and secondly : Placebo Drug: Firstly : Placebo and secondly : Amoxicillin-Clavulanic acid |
Phase IV |
Study Type: | Interventional |
Study Design: | Treatment, Randomized, Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Placebo Control, Crossover Assignment, Pharmacodynamics Study |
Official Title: | Pharmacodynamic Drug Interaction Between Warfarin and Amoxicillin-Clavulanic Acid |
Estimated Enrollment: | 12 |
Study Start Date: | March 2008 |
Estimated Study Completion Date: | September 2009 |
Estimated Primary Completion Date: | September 2009 (Final data collection date for primary outcome measure) |
Arms | Assigned Interventions |
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1: Experimental
Order 1 : Firstly Amoxicillin-Acid clavulanic, and Secondly Placebo
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Drug: Firstly : Amoxicillin-Clavulanic acid and secondly : Placebo
Amoxicillin : 2g twice daily Clavulanic acid : 125 mg twice daily
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2: Experimental
Order 2 : Firstly Placebo, and Secondly Amoxicillin-Acid clavulanic
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Drug: Firstly : Placebo and secondly : Amoxicillin-Clavulanic acid
Amoxicillin : 2g twice daily Clavulanic acid : 125mg twice daily seven consecutive days
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Double blinded cross over controlled study vs placebo performed in 12 evaluable patients treated with warfarin with an INR target 2 to 3 and a stable INR and a stable dose
One period : seven consecutive days of amoxicillin(2g twice daily)- clavulanic acid (125 mg twice daily) association Wash out period of at least 4 weak with the return to a stable INR and warfarin dose One period : seven consecutive days of placebo twice daily
Main outcome INR delta Day7-Day
Ages Eligible for Study: | 18 Years to 80 Years |
Genders Eligible for Study: | Both |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
Exclusion Criteria:
France | |
Hopital Lariboisière - Service de médecine interne | |
Paris, France, 75475 |
Principal Investigator: | Stephane MD MOULY, MD, PhD | Assistance Publique - Hôpitaux de Paris |
Responsible Party: | Department Clinical Reseach of Developpement ( Valerie MILLUL ) |
Study ID Numbers: | P051056, EUDRACT 2006-003432-30, CRC 05 111, AFSSAPS A70644-3T |
Study First Received: | January 16, 2008 |
Last Updated: | September 5, 2008 |
ClinicalTrials.gov Identifier: | NCT00603317 |
Health Authority: | France: Ministry of Health |
Warfarin Drug interaction Pharmacogenetics Amoxicillin Clavulanic acid |
Amoxicillin Pulmonary Embolism Heart Diseases Vascular Diseases Clavulanic Acids Warfarin Amoxicillin-Potassium Clavulanate Combination Thrombosis |
Embolism and Thrombosis Respiratory Tract Diseases Embolism Clavulanic Acid Lung Diseases Venous Thrombosis Atrial Fibrillation Arrhythmias, Cardiac |
Anti-Infective Agents Anti-Bacterial Agents Anticoagulants Pathologic Processes Molecular Mechanisms of Pharmacological Action |
Therapeutic Uses Hematologic Agents Enzyme Inhibitors Cardiovascular Diseases Pharmacologic Actions |