User Performance Evaluation of the INRatio® Prothrombin Time (PT) Monitoring System With a New INRatio Test Strip Designed for Low Sample Volume and Heparin Insensitivity
Public ClinicalTrials.gov record NCT01036646. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This multi-center study is designed to evaluate the ability of intended lay users (patients on oral anticoagulation therapy, OAT, or their caregivers) to 1) operate the INRatio Prothrombin Time (PT) Monitoring System utilizing the INRatio test strip newly designed for low sample volume and heparin insensitivity, and 2) obtain accurate results for the quantitative determination of International Normalized Ratio (INR) when self-testing using fingerstick capillary blood. Patients will be trained by their healthcare provider using the instructions for use and product labeling provided. The accuracy of the patient INR results will be assessed by comparison to the INR results obtained by the site's trained healthcare professional using the same INRatio system (from a separate fingerstick collected from the same patient at the point-of-care), and with the INR results obtained on venous plasma obtained from the same patient and analyzed at a central laboratory with the Sysmex CA-560 System INR reference method.
Study identification
- NCT ID
- NCT01036646
- Recruitment status
- Completed
- Study type
- Observational
- Phase
- Not listed
- Enrollment
- 183 participants
Conditions and interventions
Conditions
Interventions
Not listed
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Jul 31, 2009
- Primary completion
- May 31, 2010
- Completion
- Aug 31, 2010
- Last update posted
- Feb 10, 2013
2009 – 2010
United States locations
- U.S. sites
- 4
- U.S. states
- 2
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Loma Linda VA Hospital | Loma Linda | California | 92357 | — |
| UC Davis Healthcare System | Sacramento | California | 95817 | — |
| San Diego Cardiac Center | San Diego | California | 92123 | — |
| Fox Valley Cardiology | Aurora | Illinois | 60504 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT01036646, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Feb 10, 2013 · Synced Sep 8, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT01036646 live on ClinicalTrials.gov.