Suspended

Evaulation of Interaction Between Herbal Products and Anticoagulants

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What is being collected

Data Collection

Collected from today forward - Prospective
Who is being recruted

Coagulation Disorders

Over 18 Years

See all eligibility criteria

How is the trial designed

Other

Observational
Study Start: October 2007

See protocol details

Summary

Principal SponsorUniversity of California, San Francisco
Last updated: May 15, 2013
Sourced from a government-validated database.Claim as a partner
Study start date: October 1, 2007Actual date on which the first participant was enrolled.

The purpose of this study is to determine if the use of herbal products interferes with normal anticoagulation, leading to either excessive thinning of the blood and bleeding problems or inadequate thinning of the blood and clotting problems. Many patients who are on long term anticoagulation, or blood thinning, for a variety of medical problems, also take herbal products. It is not yet known whether use of herbal products interferes with this anticoagulation, and puts patients at risk for bleeding or clotting. This study will carefully monitor patients who are taking herbs and anticoagulants to determine if their laboratory tests show signs of being affected by the herbs. The study will ask all patients about their herbal product use, so all reported herbs will be included and monitored.

Official TitleEarly Identification of Adverse Reactions to Herbs 
Principal SponsorUniversity of California, San Francisco
Last updated: May 15, 2013
Sourced from a government-validated database.Claim as a partner

Protocol

This section provides details of the study plan, including how the study is designed and what the study is measuring.
Design Details

How information is collected
Researchers start collecting data from the present day forward, following participants over time to observe outcomes. This approach helps identify how exposures or behaviors may lead to health events in the future.Other Ways to Collect Data
Retrospective: These studies use existing medical records or past data.
Cross-sectional: These studies collect data at one single point in time.
Others: Some studies use a mix of approaches or less common designs depending on the research goal.

Eligibility

Researchers look for people who fit a certain description, called eligibility criteria: person's general health condition or prior treatments.
Conditions
Criteria
Any sexBiological sex of participants that are eligible to enroll.
Over 18 YearsRange of ages for which participants are eligible to join.
Healthy volunteers allowedIf individuals who are healthy and do not have the condition being studied can participate.
Conditions
Pathology
Coagulation Disorders
Criteria

Inclusion criteria: * Taking longer-term (\>6 months) anticoagulation * Enrolled in one of Kaiser Permanente Northern California anticoagulation clinics

Study Centers

These are the hospitals, clinics, or research facilities where the trial is being conducted. You can find the location closest to you and its status.
This study has 1 location
Suspended
San Francisco VA Medical CenterSan Francisco, United StatesSee the location
SuspendedOne Study Center