Cepheid Rectal Sample Validation Study
A Validation Study of the Cepheid Xpert CT/NG for Detecting Chlamydia Trachomatis and Neisseria Gonorrhoeae in Rectal Samples
2 other identifiers
observational
402
1 country
2
Brief Summary
The purpose of this study is to validate Xpert CT/NG for the detection of CT and GC in rectal samples as part of the PA DOH and CLIA requirements. The evaluation of samples obtained from the pharynx is exploratory and will provide new information on the frequency of pharyngeal infection due to CT and GC. A secondary objective will be to evaluate the prevalence of Trichomonas vaginalis in vaginal and rectal samples using both the Xpert system and AC2 to assess whether women positive for this pathogen rectally usually or always have vaginal infection due to this pathogen. The investigators hypothesis is that real-time PCR (polymerase chain reaction) amplification testing with the Cepheid Xpert CT/NG will have greater sensitivity than culture in detecting Neisseria gonorrhoeae in rectal samples. The investigators also hypothesize that Xpert CT/NG will be equivalent to the Gen-Probe APTIMA Combo2 (AC2) in detecting Chlamydia trachomatis and Neisseria gonorrhoeae in rectal samples.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Dec 2013
2 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
December 1, 2013
CompletedFirst Submitted
Initial submission to the registry
March 12, 2014
CompletedFirst Posted
Study publicly available on registry
March 31, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2015
CompletedFebruary 7, 2019
February 1, 2019
1.3 years
March 12, 2014
February 6, 2019
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Rectal Gonorrhea/Chlamydia testing result
Compare the sensitivity and specificity of the Xpert NG to the AC2 and culture in detecting GC in rectal samples Compare the sensitivity and specificity of the Xpert CT to AC2 (and as necessary, for discrepant results, to Aptima CT assay) in detecting CT in rectal samples
approximately 7 days
Secondary Outcomes (2)
pharyngeal GC/Ct result
approximately 7 days
Trichomonas Testing Results
approximately 7 days
Study Arms (1)
STD testing (GC/Ct/trich)
Interventions
Eligibility Criteria
Subjects presenting for routine clinical care in an STD Clinic and/or subjects who are aware of the study and meet the inclusion/exclusion criteria.
You may qualify if:
- Male and female participants aged 18 and older
- Women or men who have a history of engaging in receptive anal intercourse
- Willing to provide written informed consent for participation in this study
You may not qualify if:
- Use of oral antibiotics in the past 7 days
- Use of rectal douche or other rectal product in the past 24 hours
- If female, use of a vaginal douche or vaginal product in the past 24 hours
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Allegheny County Health Department Sexually Transmitted Diseases Clinic
Pittsburgh, Pennsylvania, 15213, United States
Magee-Womens Hospital of UPMC
Pittsburgh, Pennsylvania, 15213, United States
Biospecimen
Any leftover specimens including genital, rectal, pharyngeal, or urine may be retained.
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Sharon Hillier, PhD
University of Pittsburgh/UPMC
Study Design
- Study Type
- observational
- Observational Model
- CASE ONLY
- Time Perspective
- CROSS SECTIONAL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
March 12, 2014
First Posted
March 31, 2014
Study Start
December 1, 2013
Primary Completion
April 1, 2015
Study Completion
April 1, 2015
Last Updated
February 7, 2019
Record last verified: 2019-02