Clinical trial NCT01291264: Use of Abbott RealTime CT/NG to Detect Chlamydia Trachomatis [CT] & Neisseria Gonorrhoeae [NG] in Men Who Have Sex With Men [MSM]
Official title: 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]
Study type: OBSERVATIONAL
Overall status: TERMINATED
Conditions: Chlamydia Infection
Gonococcal Infection
Sexually Transmitted Diseases
Keywords: Chlamydia trachomatis
Neisseria gonorrhoeae
Sexually Transmitted Diseases
Lead sponsor: University of California, San Francisco
Sponsor class: OTHER
Collaborators: name: Abbott Molecular
First posted: 2011-02-08
Enrollment: 260
Sex: MALE
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: yes
Observational model: COHORT
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Men who have sex with men (MSM) voluntarily presenting at the City STD clinic.

Brief summary: 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.

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.

Eligibility criteria: 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.

Primary outcomes:
measure: Subject's Infected-status as Determined by the Nucleic Acid Amplification Assays Performed.
timeFrame: 1 day - (At clinic visit)
Secondary outcomes:
Other outcomes:
Locations:
city: San Francisco
country: United States
facility: SF City Clinic
state: California
city: San Francisco
country: United States
facility: University of California, San Francisco
state: California
Study officials:
affiliation: University of California, San Francisco
name: Julius Schachter, PhD
role: PRINCIPAL_INVESTIGATOR
References:
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citation: Moncada J, Schachter J, Liska S, Shayevich C, Klausner JD. Evaluation of self-collected glans and rectal swabs from men who have sex with men for detection of Chlamydia trachomatis and Neisseria gonorrhoeae by use of nucleic acid amplification tests. J Clin Microbiol. 2009 Jun;47(6):1657-62. doi: 10.1128/JCM.02269-08. Epub 2009 Apr 15.
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