Contraceptive Hormones, Immunity, and Microbiome Evaluation
CHIME
A Prospective Cohort Study Evaluating the Impact of Three Progestin-based Hormonal Contraceptive (HC) Methods on Immunologic Changes in the Female Genital Tract (FGT) and Systemically
2 other identifiers
observational
155
1 country
3
Brief Summary
The study is a prospective cohort study to explore the mechanisms underlying the HIV risk associated with pharmacologic doses of exogenous sex hormones via hormonal contraceptives specially progestin-containing hormonal contraception (HC). The study seeks to test that HC induce immunologic changes capable of altering HIV susceptibilities, that these effects will vary by contraceptive type, and that they will be modified by the vaginal microenvironment.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Dec 2018
Longer than P75 for all trials
3 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
First Submitted
Initial submission to the registry
September 4, 2018
CompletedFirst Posted
Study publicly available on registry
September 6, 2018
CompletedStudy Start
First participant enrolled
December 7, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
September 7, 2023
CompletedStudy Completion
Last participant's last visit for all outcomes
September 7, 2023
CompletedOctober 29, 2024
October 1, 2024
4.8 years
September 4, 2018
October 25, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Change in mean total leukocytes and CD4+ T-cells expressing CCR5 in the lower female genital tract (FGT) among the three intervention groups pre and post contraception
Using Fortessa flow cytometer and Luminex, effector memory Cluster Differentiation 4 (CD4) + Thymocytes (T) cells will be analyzed for surface expression of HIV coreceptors cell surface receptor C-C chemokine receptor type 5 (CCR5) and reported as percent of total leukocytes and CD4+ T-cells. The cytometry will use the cervicovaginal fluid (CVF) collected by cervicovaginal lavage (CVL).This test will characterize the alterations in female genital and systemic immune profiles associated with three long-acting progestin-only Hormonal Contraception.
Week 1 and Week 3 (pre contraception), and 13 and 15 weeks after initiating contraception
Change in Nugent's score among the three intervention groups pre and post contraception
The Nugent Score is a Gram stain scoring system for vaginal swabs to diagnose bacterial vaginosis. The Nugent score is calculated by assessing for the presence of large Gram-positive rods (Lactobacillus morphotypes; decrease in Lactobacillus scored as 0 to 4), small Gram-variable rods (Gardnerella vaginalis morphotypes; scored as 0 to 4), and curved Gram-variable rods (Mobiluncus spp. morphotypes; scored as 0 to 2). A score of 7 to 10 is consistent with bacterial vaginosis without culture.
Week 1 and Week 3 (pre contraception), and 13 and 15 weeks after initiating contraception
Percent of expression of 16S rRNA gene sequencing among the three intervention groups pre and post contraception
16 Svedberg ribosomal RNA (16S rRNA) is the component of the 30 Svedberg ribosomal RNA (30S rRNA) small subunit of a prokaryotic ribosome that binds to the Shine-Dalgarno sequence. The genes coding for it are referred to as 16S rRNA gene and are used in reconstructing phylogenies. 16S rRNA gene sequence analysis can better identify poorly described, rarely isolated, or phenotypically aberrant strains, can be routinely used for identification of mycobacteria, and can lead to the recognition of novel pathogens and uncultured bacteria.The term 16S refers to how it settles to when centrifuged (it's called a sedimentation rate, and it's measured in Svedberg (S) units).
Week 1 and Week 3 (pre contraception), and 13 and 15 weeks after initiating contraception
Study Arms (3)
Depot medroxyprogesterone acetate (DMPA)
This arm includes subjects that choose Depot medroxyprogesterone acetate (DMPA) as contraception.
Etonogestrel implant (Eng-Implant)
This arm includes subjects that choose Etonogestrel implant (Eng-Implant) as contraception.
Levonorgestrel IUD (Lng-IUD)
This arm includes subjects that choose Levonorgestrel Intrauterine device (Lng-IUD) as contraception.
Interventions
Depot medroxyprogesterone acetate (DMPA) will be dispensed from the Grady Pharmacy Service and will be administered every 12 weeks at the standard dose of 150 mg Intramuscular injection, beginning from week 3 of study enrollment and repeated every 13 weeks
A standard Nexplanon rod Implant that is a subdermal implant in the arm. This will be placed at study week 3 by Dr. Haddad or a trained clinician. It contains Etonogestrel 68mg.
The Levonorgestrel Intrauterine Device (Lng-IUD) (Mirena or copper) will be placed at study week 3 by Dr. Haddad or a trained clinician.
Eligibility Criteria
Participants will be selected from several sites in the greater Atlanta community to include: family planning clinics, OB/GYN practice/reproductive heath clinics, community based recruitment through postings at community centers, community health fairs, coffee shops and local universities, as well as web-based recruitment through the national ResearchMatch.
You may qualify if:
- Female sex, defined by sex at birth.
- Age ≤ 45 years. If \< 18 years of age, participant must be capable of providing assent, understanding and complying with all study procedures, and have written informed consent from a parent or legal guardian.
- Normal menses (occurring within 22-35 day intervals) for \> 2 cycles. Women who are postpartum or post-abortion who have resumed menses are eligible.
- Intact uterus and cervix.
- Interested in initiating HC and willing to accept DMPA, Eng-Implant or Lng-IUD.
- Willing to delay initiation of HC for up to 1 month.
- Able and willing to provide informed consent, and undergo study procedures.
- Negative HIV test by Ora-Quick© method at Screening Visit.
- Agree to abstain from vaginal intercourse or using intra-vaginal products for 1 day prior to each study visit.
You may not qualify if:
- Pregnant or planning to become pregnant within the next year.
- History of loop electrosurgical excision procedure (LEEP), conization, or cryosurgery within the past year.
- Current use of systemic HC or IUD, based on self-report and/or hormonal testing.
- Taking concurrent medications that interact with selected HC.
- Contraindications to selected contraceptive per the Center for Disease Control medical eligibility criteria or judgment of clinician.
- Allergy to lidocaine for cervical biopsies (if consenting to optional biopsies).
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (3)
Grady Health System
Atlanta, Georgia, 30303, United States
The Emory Clinic, Bldg A., 2nd Floor, 1365 Clifton Road, NE
Atlanta, Georgia, 30322, United States
Atlanta Women's Center
Atlanta, Georgia, 30342, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Alicia Smith, PhD
Emory University
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Associate Professor
Study Record Dates
First Submitted
September 4, 2018
First Posted
September 6, 2018
Study Start
December 7, 2018
Primary Completion
September 7, 2023
Study Completion
September 7, 2023
Last Updated
October 29, 2024
Record last verified: 2024-10
Data Sharing
- IPD Sharing
- Will not share