Optimization of Laboratory ProceduresNCT02134535
Optimization of the ex Vivo Challenge
An observational study of Optimization of Laboratory Procedures, run by University of Pittsburgh at 1 site in United States.
Trial summary
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. Read more about this study
- Who is it for?
- Ages 18 to 45 years, women onlyHealthy volunteers can take part
- Conditions the study is for
- Optimization of Laboratory Procedures
- How many people
- 73 participants
- Where
- 1 siteUnited States
- Study dates
- May 2014to Mar 2015
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 45 years
- Women only
- Healthy volunteers accepted
- Adult
Study population: Healthy, non-pregnant, HIV negative women
Who may be able to join
- 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
Who cannot join
- 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.
Show all 10Show fewer
- 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
Trial locations and contacts
1 site in 1 country.
United States1 site
Magee-Womens Hospital of UPMC
Pittsburgh, Pennsylvania, 15213
About this study
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.
Read the detailed description
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.
- Conditions
- Optimization of Laboratory Procedures
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| laboratory specimens | cervical biopsies vaginal biopsies blood |
What is being measured
The primary outcome is the main question the study is designed to answer.
cervical biopsy
Measured: Day 1
vaginal biopsy
Measured: Day 1
Secondary outcomes (1)
blood draw
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 May 2014 (estimated)
- Study startMay 2014
- Primary completionMar 2015
- Study completionMar 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Optimization of Laboratory ProceduresStudies of the same condition, open and under way.
- More trials run by University of PittsburghThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Enrolment
- 73 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Pittsburgh
- Sponsor type
- University, hospital or other
- Collaborators
- Bill and Melinda Gates Foundation
- Responsible party
- Principal investigator, Katherine Bunge, University of Pittsburgh
- Investigators
- Katherine Bunge, MD, Principal investigator, University of Pittsburgh
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02134535
- Sponsor's protocol ID
- PRO13120447
- Status last verified
- Jan 2016
- First submitted
- 7 May 2014
- Last updated
- 27 Jan 2016
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 27 Jan 2016. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Optimization of the ex Vivo Challenge
- ClinicalTrials.gov ID
- NCT02134535
- Acronym / sponsor ID
- PRO13120447
- Conditions
- Optimization of Laboratory Procedures
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 73 participants (actual)
- Lead sponsor
- University of PittsburghUniversity, hospital or other
- Collaborators
- Bill and Melinda Gates Foundation
- Study start
- May 2014
- Primary completion
- Mar 2015 (actual)
- Study completion
- Mar 2015 (actual)
- First posted
- 9 May 2014 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
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.
Study design
- Observational model
- Cohort
- Time perspective
- Cross-sectional
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| laboratory specimens | – | –cervical biopsies vaginal biopsies blood |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult
- Study population
- Healthy, non-pregnant, HIV negative women
Key inclusion criteria (7 listed)
- 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
Key exclusion criteria (10 listed)
- 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
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
cervical biopsy
Time frame: Day 1
vaginal biopsy
Time frame: Day 1
1 secondary outcome
blood draw
Time frame: Day 1
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 27 Jan 2016.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Katherine Bunge, MD principal investigator
University of Pittsburgh
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Optimization of Laboratory Procedures, run by University of Pittsburgh at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 7 inclusion and 10 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 27 Jan 2016. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
cervical biopsy (time frame: Day 1). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 27 Jan 2016.