Chlamydia Trachomatis Immunology and Vaccinology Study

NCT ID: NCT01150747

Last Updated: 2015-12-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

347 participants

Study Classification

OBSERVATIONAL

Study Start Date

2011-01-31

Study Completion Date

2015-08-31

Brief Summary

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The primary objective is to prospectively follow 200 women with or at risk of cervicitis to determine the chlamydia-specific cellular responses that correlate with protection against incident infection. The hypothesis is that a positive IFN-y response by peripheral CD4+ T cells responding to stimulation with HSP60 will be significantly associated with protection from incident C. trachomatis infection.

Detailed Description

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A total of 200 women with or at high risk of having cervicitis will be prospectively followed for correlations between chlamydia-specific cellular responses and protection against incident infection.

At enrollment participants will undergo a history and physical examination; blood draw; and pelvic examination including collection of vaginal and cervical samples, STD testing and endometrial biopsy.

Participants will have follow up visits conducted at 1, 4, 8 and 12 months following enrollment. At the follow-up visits, participants will undergo a repeat history and physical, blood draw and pelvic examination including collection of vaginal and cervical samples and STD testing.

The study design will allow comprehensive identification of the antigen-specific cell mediated immune responses most strongly associated with protection against C. trachomatis infection.

The primary objective is to prospectively follow 200 women with or at risk for cervicitis to determine the chlamydia-specific cellular responses that correlate with protection against incident infection.

Conditions

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Chlamydia

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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Risk of positive chlamydia

1. current, untreated endocervical C. trachomatis infection
2. mucopurulent cervicitis on pelvic examination
3. Sexual contact with a male partner recently diagnosed with C. trachomatis, and/or non-gonococcal urethritis

ceftriaxone

Intervention Type DRUG

250mg IM once

Azithromycin

Intervention Type DRUG

1 gm once

Interventions

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ceftriaxone

250mg IM once

Intervention Type DRUG

Azithromycin

1 gm once

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Women 15-35 years of age. Note: Minors must have written informed consent from her parent/legal guardian to participate.
2. At least one of the following:

1. Current , untreated endocervical C. trachomatis infection.
2. Mucopurulent cervicitis: defined by the presence of yellow or green endocervical mucopurulent discharge and/ or easily induced endocervical bleeding (bleeding when the first swab is placed in the endocervix).
3. Sexual contact with a male partner (regardless of condom use) recently diagnosed (within the past 3 months) with C. trachomatis and/or non-gonococcal urethritis.

Exclusion Criteria

1. Pregnant or nursing a baby. Note: a urine pregnancy test will be done at enrollment. Result must be negative to participate in the study.
2. Gynecologic surgery or surgical abortion in preceding 2 months of enrollment.
3. Allergy to any of the study medications and/or derivatives (cephalosporins, azithromycin, erythromycin, any macrolide or ketolide antibiotic) or Type 1 hypersensitivity allergic reaction to penicillin.
4. Systemic or vaginal antibiotic therapy in preceding 7 days of enrollment.
5. Prior hysterectomy.
6. Menopause.
7. Any condition, in the opinion of the investigator that would interfere with the participant's safety or with study outcomes.
8. Participation in any study involving an investigational product in the past 30 days or anticipation of participation in any study using an investigational product in the next 30 days.
9. Previous participation in this study.
Minimum Eligible Age

15 Years

Maximum Eligible Age

35 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

No

Sponsors

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National Institute of Allergy and Infectious Diseases (NIAID)

NIH

Sponsor Role collaborator

Harold Wiesenfeld

OTHER

Sponsor Role lead

Responsible Party

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Harold Wiesenfeld

Associate Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Toni Darville, MD

Role: STUDY_DIRECTOR

University of Pittsburgh

Locations

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Allegheny County Sexually Transmitted Disease Clinic

Pittsburgh, Pennsylvania, United States

Site Status

Magee Womens Hospital of UPMC

Pittsburgh, Pennsylvania, United States

Site Status

Magee-Womens Hospital of UPMC

Pittsburgh, Pennsylvania, United States

Site Status

Mercy Hospital of UPMC

Pittsburgh, Pennsylvania, United States

Site Status

Countries

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United States

Other Identifiers

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U19AI084024

Identifier Type: NIH

Identifier Source: secondary_id

View Link

PRO10010159

Identifier Type: -

Identifier Source: org_study_id