Use of Abbott RealTime CT/NG to Detect Chlamydia Trachomatis [CT] & Neisseria Gonorrhoeae [NG] in Men Who Have Sex With Men [MSM]

January 21, 2014 updated by: University of California, San Francisco

Evaluation of Abbott RealTime CT/NG for the Detection of Chlamydia Trachomatis [CT] & Neisseria Gonorrhoeae [NG] From the Pharynx, Rectum & Urethra of Men Who Have Sex With Men [MSM]

Julius Schachter, PhD, (Department of Laboratory Medicine, University of California, San Francisco) and Susan S. Philip, MD MPH (Department of Medicine, University of California, San Francisco) are conducting a study to evaluate the Abbott RealTime CT/NG polymerase chain reaction [PCR] assay (which is a nucleic acid amplification test [NAAT]) for detecting two sexually transmitted bacteria, Chlamydia trachomatis [CT] and Neisseria gonorrhoeae [NG], using urine samples and swabs from the throat and rectum of men who have sex with men [MSM]. Using this test on these swabs is experimental because it has not been approved by the Food & Drug Administration.

Study Overview

Detailed Description

For each subject enrolled in the study, the following clinical data information will be obtained: 1) reason for exam, 2) subject's signs and symptoms and 3) clinical assessment.

For each subject enrolled in the study, two clinician-collected pharyngeal swabs, two clinician-collected rectal swabs, and a first catch urine specimen (approximately 25 ml) will be obtained. The collection order of the clinician-collected swabs will be randomized.

Two pharyngeal swabs will be tested at the research laboratory using: 1) APTIMA COMBO 2® [AC2](Gen-Probe Inc, San Diego, CA); and 2) Abbott RealTime CT/NG [RealTime](Abbott Molecular, Des Plains, IL). Two rectal swabs will be tested at the research laboratory using: 1) AC2; and 2) RealTime.

A first-catch urine [FCU] specimen will be split out at San Francisco Department of Public Health laboratory and sent to the Chlamydia Research Laboratory for analysis using: 1)AC2; and 2) RealTime.

All NAAT specimens are collected in the manufacturer's recommended NAAT transport medium. After specimen processing, samples will be frozen at -70ºC for discrepant analysis.

Study Type

Observational

Enrollment (Actual)

260

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • California
      • San Francisco, California, United States, 94143
        • University of California, San Francisco
      • San Francisco, California, United States, 94103
        • SF City Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

Male

Sampling Method

Non-Probability Sample

Study Population

Men who have sex with men (MSM) voluntarily presenting at the City STD clinic.

Description

Inclusion Criteria:

  • A subject must be MSM. Subjects must provide verbal consent, must be able to submit all required specimens and must not have urinated within 1 hr prior to providing a study urine specimen.

Exclusion Criteria:

  • Subjects are excluded if they do not have sex with men, refuse to give verbal consent or refuse to allow such consent to be documented in their chart, are unable to provide all required specimens and minimum specimen volume, have been on antibiotic therapy within the last 21 days, have urinated within 1 hr prior to submitting study specimens, and have already been evaluated as part of this trial. Subjects will be excluded if specimens are mishandled or inappropriately stored.

Study Plan

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

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Subject's Infected-status as Determined by the Nucleic Acid Amplification Assays Performed.
Time Frame: 1 day - (At clinic visit)
This is a single-point prevalence assessment done when subjects present at the STD clinic for routine STD screening. Subjects are not followed beyond the clinic visit.
1 day - (At clinic visit)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2012

Primary Completion (ACTUAL)

May 1, 2013

Study Completion (ACTUAL)

May 1, 2013

Study Registration Dates

First Submitted

February 1, 2011

First Submitted That Met QC Criteria

February 4, 2011

First Posted (ESTIMATE)

February 8, 2011

Study Record Updates

Last Update Posted (ESTIMATE)

March 4, 2014

Last Update Submitted That Met QC Criteria

January 21, 2014

Last Verified

January 1, 2014

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Sexually Transmitted Diseases

Subscribe