Optimization of the ex Vivo Challenge
The overall purpose of this research study is to collect vaginal and cervical biopsies from healthy HIV negative participants. These samples will enable investigators to optimize laboratory methods and explore implementation challenges associated with the ex vivo challenge model. The first objective is to assess which HIV virus is best for use in the model. The second objective is to determine the best endpoint for the assay.
The primary aim of this study is to collect an adequate number of cervical and vaginal biopsies to support the optimization of an ex vivo challenge model. This ex vivo challenge model has been and will continue to be used in topical microbicide clinical trials to predict the efficacy of candidate drugs.
Studieoversigt
Status
Betingelser
Detaljeret beskrivelse
The development of surrogates to predict HIV prevention product safety and efficacy is a high priority. An ex vivo challenge model is one such promising surrogate. Colonic tissue exposed to rectally applied microbicides in vivo and then challenged with HIV in the lab showed significant reduction in HIV replication when compared to tissue exposed to placebo gel. Currently, the ex vivo challenge model for ectocervical and vaginal tissue is being developed at the Dezzutti lab at the Magee Womens Research Institute in Pittsburgh, PA. Questions which need to be addressed in order to optimize the model include which HIV virus is most appropriate to use to challenge the tissue, is qPCR a more appropriate endpoint and marker of infection, and can frozen tissue perform as well as fresh tissue in the challenge model.
In this study, we will collect vaginal and cervical biopsies to use in the optimization of laboratory procedures. We will obtain the sample(s) from healthy HIV negative women. Samples will be collected and taken to Magee-Womens Research Institute as laboratory specimens. Written consent will be obtained by an investigator or co-investigator prior to the collection of any samples.
Undersøgelsestype
Tilmelding (Faktiske)
Kontakter og lokationer
Studiesteder
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Pennsylvania
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Pittsburgh, Pennsylvania, Forenede Stater, 15213
- Magee-Womens Hospital of UPMC
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
Inclusion Criteria:
- Age 18-45
- Free from abnormal vaginal discharge or other current vaginal symptoms
- HIV uninfected. Note: if a woman recently participated in a recent research study and has an HIV test result available from that study, this will suffice provided the date of the test is within 6 months of the enrollment visit for this trial. Otherwise, the potential participant should under go testing at the first study visit.
- Willing and able to give informed consent to take place in the study
- Willing to undergo a pelvic examination and genital biopsies
- Willing to provide contact information
- Agree to be sexually abstinent for two weeks beginning one week prior to the enrollment visit
Exclusion Criteria:
- Menopausal
- Pregnant or within 90 days of last pregnancy
- Hysterectomy
- Use of a diaphragm, NuvaRing or spermicide for contraception
- Reports a course of antibiotic therapy in the 14 days prior to enrollment
- Known history of platelet disorder or coagulapathy.
- Participation in another microbicide or contraceptive study or a study involving cervical and/or vaginal biopsies within one month of enrollment
- Use of any spermicide or spermicide-lubricated condom within one week of enrollment.
- Use of any internal vaginal device or product with the exception of tampons within one week of enrollment
- Any other condition that in the opinion of the site investigator would preclude provision of informed consent, make participation in the study unsafe, complicate interpretation of study outcome data, or otherwise interfere with achieving the study objectives
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Kohorter og interventioner
Gruppe / kohorte |
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laboratory specimens
cervical biopsies vaginal biopsies blood
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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cervical biopsy
Tidsramme: Day 1
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Day 1
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vaginal biopsy
Tidsramme: Day 1
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Day 1
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Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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blood draw
Tidsramme: Day 1
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Day 1
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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Andre undersøgelses-id-numre
- PRO13120447
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