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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.
Studie Overzicht
Toestand
Gedetailleerde beschrijving
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.
Studietype
Inschrijving (Werkelijk)
Contacten en locaties
Studie Locaties
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Pennsylvania
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Pittsburgh, Pennsylvania, Verenigde Staten, 15213
- Magee-Womens Hospital of UPMC
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Bemonsteringsmethode
Studie Bevolking
Beschrijving
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
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
Cohorten en interventies
Groep / Cohort |
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laboratory specimens
cervical biopsies vaginal biopsies blood
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
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cervical biopsy
Tijdsspanne: Day 1
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Day 1
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vaginal biopsy
Tijdsspanne: Day 1
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Day 1
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Secundaire uitkomstmaten
Uitkomstmaat |
Tijdsspanne |
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blood draw
Tijdsspanne: Day 1
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Day 1
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Medewerkers en onderzoekers
Sponsor
Medewerkers
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Andere studie-ID-nummers
- PRO13120447
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
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