Occult Gastrointestinal Bleeding in Non-pulsatile Left Ventricular Assist Device(VAD)Patients

NCT ID: NCT01415869

Last Updated: 2019-05-20

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

COMPLETED

Total Enrollment

38 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-06-22

Study Completion Date

2013-06-22

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

The purpose of this study is to estimate the proportion of Ventricular Assist Device (VAD) patients with abnormal gastrointestinal bleeding as assessed by HemoQuant fecal occult blood test. Also, in patients with gastrointestinal bleeding present, to summarize the extent of gastrointestinal bleeding; to examine the behavior of HemoQuant fecal occult blood test over time by estimating the proportion of VAD patients with a positive test prior to implantation; at one week, one month, three months, six months and one year post implantation, and after explantation of the VAD and to evaluate whether presence of any abnormal fecal HemoQuant test is predictive of a future major bleeding event.

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Gastrointestinal Bleeding Complication of Internal Device

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

OTHER

Study Time Perspective

OTHER

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Cross Sectional

Patients with implanted non-pulsatile ventricular assist devices of any type and at any time after implantation

No interventions assigned to this group

Prospective

Patients with usual VAD indications will be invited to participate, when, in the opinion of their treating physician a VAD will be highly likely within one month.

No interventions assigned to this group

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Group 1 - cross sectional study. Patients with implanted non-pulsatile ventricular assist devices of any type and at any time after implantation
* Group 2 - prospective study. Patients with usual VAD indications will be invited to participate, when, in the opinion of their treating physician a VAD will be highly likely within one month.

Exclusion Criteria

* Unwillingness to provide stool samples for study
* Unwillingness to be followed for study endpoints.
* Unwillingness to follow dietary restrictions necessary for accurate HemaQuant measurement
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

Mayo Clinic

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Joseph L. Blackshear

PI

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Joseph L Blackshear, MD

Role: PRINCIPAL_INVESTIGATOR

Mayo Clinic

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

Mayo Clinic

Jacksonville, Florida, United States

Site Status

Mayo Clinic

Rochester, Minnesota, United States

Site Status

Countries

Review the countries where the study has at least one active or historical site.

United States

Related Links

Access external resources that provide additional context or updates about the study.

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

11-003334

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.