Chlamydia InfectionNCT01291264
Use of Abbott RealTime CT/NG to Detect Chlamydia Trachomatis [CT] & Neisseria Gonorrhoeae [NG] in Men Who Have Sex With Men [MSM]
An observational study of Chlamydia Infection and Gonococcal Infection, run by University of California, San Francisco at 2 sites in United States.
Trial 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… Read more about this study
- Who is it for?
- Ages 18 years and older, men onlyHealthy volunteers can take part
- Conditions the study is for
- Chlamydia Infection, Gonococcal Infection, Sexually Transmitted Diseases
- How many people
- 260 participants
- Where
- 2 sitesUnited States
- Study dates
- Jun 2012to May 2013
- Phase
- Observational
- Are there results?
- Yes, posted in the registrySummary in the doctors' view
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- Men only
- Healthy volunteers accepted
- Adult, Older adult
Study population: Men who have sex with men (MSM) voluntarily presenting at the City STD clinic.
Who may be able to join
- 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.
Who cannot join
- 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.
Trial locations and contacts
2 sites in 1 country.
United States2 sites
SF City Clinic
San Francisco, California, 94103
University of California, San Francisco
San Francisco, California, 94143
About this study
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]
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.
Read the 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.
- Keywords
- Chlamydia trachomatis, Neisseria gonorrhoeae, Sexually Transmitted Diseases
- Medical subject headings
- Chlamydia Infections, Gonorrhea, Sexually Transmitted Diseases
What is being measured
The primary outcome is the main question the study is designed to answer.
Subject's Infected-status as Determined by the Nucleic Acid Amplification Assays Performed.
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.
Measured: 1 day - (At clinic visit)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted8 Feb 2011 (estimated)
- Study startJun 2012
- Primary completionMay 2013
- Study completionMay 2013
Why it stopped: Abbott Molecular stopped funding of study
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Posted resultsParticipant flow, outcome measures and adverse events reported by the sponsor.
- Publications (12)Papers the sponsor has linked to this study.
- Other trials for Chlamydia InfectionStudies of the same condition, open and under way.
- More trials run by University of California, San FranciscoThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 260 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of California, San Francisco
- Sponsor type
- University, hospital or other
- Collaborators
- Abbott Molecular
- Responsible party
- Sponsor
- Investigators
- Julius Schachter, PhD, Principal investigator, University of California, San Francisco
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT01291264
- Sponsor's protocol ID
- 10-04134
- Status last verified
- Jan 2014
- First submitted
- 1 Feb 2011
- Last updated
- 4 Mar 2014
- Results posted
- Yes, on ClinicalTrials.gov
- Data monitoring committee
- No
Publications
Johnson RE, Newhall WJ, Papp JR, Knapp JS, Black CM, Gift TL, Steece R, Markowitz LE, Devine OJ, Walsh CM, Wang S, Gunter DC, Irwin KL, DeLisle S, Berman SM. Screening tests to detect Chlamydia trachomatis and Neisseria gonorrhoeae infections--2002. MMWR Recomm Rep. 2002 Oct 18;51(RR-15):1-38; quiz CE1-4.
PubMed 12418541Workowski KA, Berman S; Centers for Disease Control and Prevention (CDC). Sexually transmitted diseases treatment guidelines, 2010. MMWR Recomm Rep. 2010 Dec 17;59(RR-12):1-110.
PubMed 21160459Page-Shafer K, Graves A, Kent C, Balls JE, Zapitz VM, Klausner JD. Increased sensitivity of DNA amplification testing for the detection of pharyngeal gonorrhea in men who have sex with men. Clin Infect Dis. 2002 Jan 15;34(2):173-6. doi: 10.1086/338236. Epub 2001 Dec 7.
PubMed 11740704Van Der Pol B, Ferrero DV, Buck-Barrington L, Hook E 3rd, Lenderman C, Quinn T, Gaydos CA, Lovchik J, Schachter J, Moncada J, Hall G, Tuohy MJ, Jones RB. Multicenter evaluation of the BDProbeTec ET System for detection of Chlamydia trachomatis and Neisseria gonorrhoeae in urine specimens, female endocervical swabs, and male urethral swabs. J Clin Microbiol. 2001 Mar;39(3):1008-16. doi: 10.1128/JCM.39.3.1008-1016.2001.
PubMed 11230419Ciemins EL, Flood J, Kent CK, Shaw H, Rowniak S, Moncada J, Klausner JD, Schachter J. Reexamining the prevalence of Chlamydia trachomatis infection among gay men with urethritis: implications for STD policy and HIV prevention activities. Sex Transm Dis. 2000 May;27(5):249-51. doi: 10.1097/00007435-200005000-00002.
PubMed 10821595Rompalo AM, Price CB, Roberts PL, Stamm WE. Potential value of rectal-screening cultures for Chlamydia trachomatis in homosexual men. J Infect Dis. 1986 May;153(5):888-92. doi: 10.1093/infdis/153.5.888.
PubMed 3084665Chernesky MA, Martin DH, Hook EW, Willis D, Jordan J, Wang S, Lane JR, Fuller D, Schachter J. Ability of new APTIMA CT and APTIMA GC assays to detect Chlamydia trachomatis and Neisseria gonorrhoeae in male urine and urethral swabs. J Clin Microbiol. 2005 Jan;43(1):127-31. doi: 10.1128/JCM.43.1.127-131.2005.
PubMed 15634960Schachter J, Moncada J, Liska S, Shayevich C, Klausner JD. Nucleic acid amplification tests in the diagnosis of chlamydial and gonococcal infections of the oropharynx and rectum in men who have sex with men. Sex Transm Dis. 2008 Jul;35(7):637-42. doi: 10.1097/OLQ.0b013e31817bdd7e.
PubMed 18520976Kent CK, Chaw JK, Wong W, Liska S, Gibson S, Hubbard G, Klausner JD. Prevalence of rectal, urethral, and pharyngeal chlamydia and gonorrhea detected in 2 clinical settings among men who have sex with men: San Francisco, California, 2003. Clin Infect Dis. 2005 Jul 1;41(1):67-74. doi: 10.1086/430704. Epub 2005 May 26.
PubMed 15937765Laboratory Diagnostic Testing for Chlamydia trachomatis and Neisseria gonorrhoeae. American Public Health Laboratories/Center for Disease Control & Prevention Panel Summary Reports. January 2009. Internet. Accessed 8 November 2010. http://www.aphl.org/aphlprograms/infectious/std/Documents/CTGCLabGuidelinesMeetingReport.pdf
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.
PubMed 19369445Gaydos CA, Cartwright CP, Colaninno P, Welsch J, Holden J, Ho SY, Webb EM, Anderson C, Bertuzis R, Zhang L, Miller T, Leckie G, Abravaya K, Robinson J. Performance of the Abbott RealTime CT/NG for detection of Chlamydia trachomatis and Neisseria gonorrhoeae. J Clin Microbiol. 2010 Sep;48(9):3236-43. doi: 10.1128/JCM.01019-10. Epub 2010 Jul 28.
PubMed 20668135
Study at a glance
From the registry record, last updated by the sponsor on 4 Mar 2014. Recruitment status is as the sponsor reported it: confirm with the study team.
- 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]
- ClinicalTrials.gov ID
- NCT01291264
- Acronym / sponsor ID
- 10-04134
- Keywords
- Chlamydia trachomatis, Neisseria gonorrhoeae, Sexually Transmitted Diseases
- Study type
- Observational
- Recruitment status
- TerminatedReason stopped: Abbott Molecular stopped funding of study
- Enrolment
- 260 participants (actual)
- Lead sponsor
- University of California, San FranciscoUniversity, hospital or other
- Collaborators
- Abbott Molecular
- Study start
- Jun 2012
- Primary completion
- May 2013 (actual)
- Study completion
- May 2013 (actual)
- First posted
- 8 Feb 2011 (estimated)
- Results
- Posted 4 Mar 2014
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 18 years and older
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Men who have sex with men (MSM) voluntarily presenting at the City STD clinic.
Key inclusion criteria (1 listed)
- 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.
Key exclusion criteria (1 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
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.
Results and safety
Loading the posted results from ClinicalTrials.gov…
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 4 Mar 2014.
- Posted resultsParticipant flow, baseline, all outcome measures and adverse events.
- Background: PubMed 12418541Johnson RE, Newhall WJ, Papp JR, Knapp JS, Black CM, Gift TL, Steece R, Markowitz LE, Devine OJ, Walsh CM, Wang S, Gunter DC, Irwin KL, DeLisle S, Berman SM. Screening tests to detect Chlamydia trachomatis and Neisseria gonorrhoeae infections--2002. MMWR Recomm Rep. 2002 Oct 18;51(RR-15):1-38; quiz CE1-4.
- Background: PubMed 21160459Workowski KA, Berman S; Centers for Disease Control and Prevention (CDC). Sexually transmitted diseases treatment guidelines, 2010. MMWR Recomm Rep. 2010 Dec 17;59(RR-12):1-110.
- Background: PubMed 11740704Page-Shafer K, Graves A, Kent C, Balls JE, Zapitz VM, Klausner JD. Increased sensitivity of DNA amplification testing for the detection of pharyngeal gonorrhea in men who have sex with men. Clin Infect Dis. 2002 Jan 15;34(2):173-6. doi: 10.1086/338236. Epub 2001 Dec 7.
- Background: PubMed 11230419Van Der Pol B, Ferrero DV, Buck-Barrington L, Hook E 3rd, Lenderman C, Quinn T, Gaydos CA, Lovchik J, Schachter J, Moncada J, Hall G, Tuohy MJ, Jones RB. Multicenter evaluation of the BDProbeTec ET System for detection of Chlamydia trachomatis and Neisseria gonorrhoeae in urine specimens, female endocervical swabs, and male urethral swabs. J Clin Microbiol. 2001 Mar;39(3):1008-16. doi: 10.1128/JCM.39.3.1008-1016.2001.
- Background: PubMed 10821595Ciemins EL, Flood J, Kent CK, Shaw H, Rowniak S, Moncada J, Klausner JD, Schachter J. Reexamining the prevalence of Chlamydia trachomatis infection among gay men with urethritis: implications for STD policy and HIV prevention activities. Sex Transm Dis. 2000 May;27(5):249-51. doi: 10.1097/00007435-200005000-00002.
- Background: PubMed 3084665Rompalo AM, Price CB, Roberts PL, Stamm WE. Potential value of rectal-screening cultures for Chlamydia trachomatis in homosexual men. J Infect Dis. 1986 May;153(5):888-92. doi: 10.1093/infdis/153.5.888.
- Background: PubMed 15634960Chernesky MA, Martin DH, Hook EW, Willis D, Jordan J, Wang S, Lane JR, Fuller D, Schachter J. Ability of new APTIMA CT and APTIMA GC assays to detect Chlamydia trachomatis and Neisseria gonorrhoeae in male urine and urethral swabs. J Clin Microbiol. 2005 Jan;43(1):127-31. doi: 10.1128/JCM.43.1.127-131.2005.
- Background: PubMed 18520976Schachter J, Moncada J, Liska S, Shayevich C, Klausner JD. Nucleic acid amplification tests in the diagnosis of chlamydial and gonococcal infections of the oropharynx and rectum in men who have sex with men. Sex Transm Dis. 2008 Jul;35(7):637-42. doi: 10.1097/OLQ.0b013e31817bdd7e.
- Background: PubMed 15937765Kent CK, Chaw JK, Wong W, Liska S, Gibson S, Hubbard G, Klausner JD. Prevalence of rectal, urethral, and pharyngeal chlamydia and gonorrhea detected in 2 clinical settings among men who have sex with men: San Francisco, California, 2003. Clin Infect Dis. 2005 Jul 1;41(1):67-74. doi: 10.1086/430704. Epub 2005 May 26.
- BackgroundLaboratory Diagnostic Testing for Chlamydia trachomatis and Neisseria gonorrhoeae. American Public Health Laboratories/Center for Disease Control & Prevention Panel Summary Reports. January 2009. Internet. Accessed 8 November 2010. http://www.aphl.org/aphlprograms/infectious/std/Documents/CTGCLabGuidelinesMeetingReport.pdf
- Background: PubMed 19369445Moncada 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.
- Background: PubMed 20668135Gaydos CA, Cartwright CP, Colaninno P, Welsch J, Holden J, Ho SY, Webb EM, Anderson C, Bertuzis R, Zhang L, Miller T, Leckie G, Abravaya K, Robinson J. Performance of the Abbott RealTime CT/NG for detection of Chlamydia trachomatis and Neisseria gonorrhoeae. J Clin Microbiol. 2010 Sep;48(9):3236-43. doi: 10.1128/JCM.01019-10. Epub 2010 Jul 28.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Julius Schachter, PhD principal investigator
University of California, San Francisco
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Chlamydia Infection and Gonococcal Infection, run by University of California, San Francisco at 2 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: stopped early, as of the sponsor's last update on 4 Mar 2014. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
Yes. Results are posted in the registry (first posted 4 Mar 2014). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Subject's Infected-status as Determined by the Nucleic Acid Amplification Assays Performed. (time frame: 1 day - (At clinic visit)). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT01291264, which also lists 12 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Mar 2014.