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Vaginal and Rectal Clostridial Carriage Among Women of Reproductive Age in the United States

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01283828
Recruitment Status : Completed
First Posted : January 26, 2011
Last Update Posted : October 7, 2013
Information provided by (Responsible Party):
Gynuity Health Projects

Brief Summary:
This primary goals of this study are to: estimate the prevalence of Clostridium sordellii and Clostridium perfringens carriage in the rectum and/or vagina among women of reproductive age; estimate duration of carriage of the two clostridium species; and estimate the incidence of carriage at 2 weeks after a negative test.

Condition or disease
Clostridium Sordellii Clostridium Perfringens

Detailed Description:

Since 2000, clostridial pelvic infections have claimed the lives of at least 17 young, previously healthy women. The majority of infections detected by molecular methods were among women testing positive for Clostridium sordellii only; in 5 cases, deaths were due to Clostridium perfringens only; and in 3 cases, the women were positive for both. These deaths occurred among both non-pregnant and recently pregnant women. Clostridium has been isolated from the vagina in 4-18% of normal, health non-pregnant women, with Clostridium perfringens the most common isolate. Most studies do not differentiate the small percentage of other clostridia present in the vaginal microenvironment. The vaginal carriage rate for Clostridium sordellii remains unknown, but is probably very low, less than 1%.

The correlates of clostridial carriage are unknown, and data on the etiology and lethality of clostridial infection among women of reproductive age are insufficient to guide possible courses of safe and effective prevention. In women infected with strains of Clostridium perfringens and Clostridium sordellii that produce the lethal toxin, it is not clear whether there is an effective treatment.

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Study Type : Observational
Actual Enrollment : 4977 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: Vaginal and Rectal Clostridial Carriage Among Women of Reproductive Age in the United States
Study Start Date : November 2010
Actual Primary Completion Date : April 2013
Actual Study Completion Date : April 2013

Primary Outcome Measures :
  1. Prevalence of C sordellii or C perfringens carriage in the rectum/vagina [ Time Frame: 2 years ]

Secondary Outcome Measures :
  1. Duration of carriage of C sordellii or C perfringens [ Time Frame: 2 years ]
  2. Incidence of C. sordelli or C. perfringens carriage at 2 weeks after a negative test [ Time Frame: 2 years ]

Biospecimen Retention:   Samples With DNA
Vaginal and rectal swabs

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Approximately 5,000 women aged 18 to 45 years in the United States will be enrolled in the study. Women will be recruited from approximately 25 clinics and solo or group practices providing maternity care (pre- and post-natal), abortion, STI prevention & treatment, family planning, and student health services. All women will be recruited, excluding women seeking emergency or oncological care.

Inclusion Criteria:

  • Willing and able to provide informed consent
  • Between ages 18 and 45

Exclusion Criteria:

-Seeking emergency or oncological care

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01283828

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Sponsors and Collaborators
Gynuity Health Projects
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Principal Investigator: Beverly Winikoff, M.D., M.P.H. Gynuity Health Projects
Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Gynuity Health Projects Identifier: NCT01283828    
Other Study ID Numbers: 7.2
First Posted: January 26, 2011    Key Record Dates
Last Update Posted: October 7, 2013
Last Verified: October 2013