Study of Immunity at the Genital Mucosa of HIV-1 Infected and Healthy Women (MUCOVAC)
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Purpose
Current knowledge on mucosa, especially genitals in women, however, remain inadequate, especially regarding defense mechanisms and possibilities for a vaccine to induce an active immune response at mucosal front door of the most pathogens. Induction of mucosal immune response has emerged as a research priority research prophylactic vaccine.The development of strategies to prevent sexual transmission of HIV-1 depends in part on an understanding of specific and innate immune mechanisms involved in this transmission.
MUCOVAC is a feasibility study of the immunological and transcriptomic analysis of cervicovaginal samples of women infected or not infected with HIV-1. We also assess tolerance samples taken by cytobrush and cervicovaginal washings, efficiency and reproducibility of the sample by cytobrush and cervicovaginal lavage for transcriptomic analysis, measurement of cytokines by Luminex technology, quantification of IgG and IgA. In blood we will determine the phenotype of B cells and Tfh cell frequency (T follicular helper) and quantification of serum immunoglobulins and will perform a transcriptomic analysis of blood cells. Finally we will make correlations with the observed responses at the genital mucosa.
This pathophysiological exploratory study will be performed in 20 women infected with HIV-1 and 20 healthy women recruited from two centers in France and will include a screening visit and two visits M0 and M1 during which mucous and blood samples will be performed.
The results of the study will capitalize skills in biology mucosa, using powerful tools to assess mucosal immunological parameters.
| Condition | Intervention |
|---|---|
|
HIV Infected Women Healthy Women Volunteers |
Procedure: vaginal swabs by washing and cytobrush |
| Study Type: | Interventional |
| Study Design: | Allocation: Non-Randomized Endpoint Classification: Safety Study Intervention Model: Parallel Assignment Masking: Open Label |
| Official Title: | Study of Immunity at the Genital Mucosa of HIV-1 Infected and Healthy Women |
- Acceptability, tolerance, Efficiency [ Time Frame: 2 months ] [ Designated as safety issue: Yes ]
- Acceptability
- Local tolerance of sampling (particularly for collection by cytobrush), bleeding (need for protection, abundance, frequency) leucorrhoea (frequency, amount, aspect), fever, pain, gynecological vaginal burns and general tolerance (fever, occurrence of pelvic infection).
- Efficiency of collection by washing (Ig rate > 1μg/ml) and quality of cells collected by cytobrush and of cell pellet from washes for a transcriptomic analysis (the quantity and quality of RNA: RIN (RNA integrity number) > 5 and an amount of RNA 50> ng)
- Concentration of antibodies in cervicovaginal samples [ Time Frame: Month 0 and month 1 ] [ Designated as safety issue: No ]Concentration of antibodies in cervicovaginal samples
- Concentration of cytokines in cervicovaginal samples [ Time Frame: month 0 and month 1 ] [ Designated as safety issue: No ]Concentration of cytokines in cervicovaginal samples
- Expression genomics in cervicovaginal specimens and whole blood [ Time Frame: month 0 and month 1 ] [ Designated as safety issue: No ]Expression genomics in cervicovaginal specimens and whole blood
- B phenotypes and the frequency of Tfh cells in whole blood [ Time Frame: month 0 and month 1 ] [ Designated as safety issue: No ]B phenotypes and the frequency of Tfh cells in whole blood
| Estimated Enrollment: | 40 |
| Study Start Date: | January 2013 |
| Estimated Study Completion Date: | October 2013 |
| Estimated Primary Completion Date: | September 2013 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Healthy women volunteers
Healthy women volunteers with vaginal swabs by washing and cytobrush
|
Procedure: vaginal swabs by washing and cytobrush
vaginal swabs by washing and cytobrush
|
|
HIV-1 infected women
HIV-1 infected women with vaginal swabs by washing and cytobrush
|
Procedure: vaginal swabs by washing and cytobrush
vaginal swabs by washing and cytobrush
|
Show Detailed Description Eligibility| Ages Eligible for Study: | 18 Years to 45 Years |
| Genders Eligible for Study: | Female |
| Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Free, informed and signed consent
- Person affiliated or beneficiary of a social security system or the Universal Health Coverage
- Female
- No menopausal, aged 18 to 45 years,
- Under oral contraceptive or implant
- Urine pregnancy test negative
- HBsAg and HCV serology negative
- Cervicovaginal smear normal older than one year,
- Normal vaginal smear dated within one year
For healthy women
* HIV serology negative
For infected women
- HIV-1 infection checked by western-blot and/or the detection of HIV-RNA
- CD4+ T cells >350/mm3 (several tests, since 6 months)
- Viral load <40 copies/ml since 6 months
- Treated with antiretroviral drugs since 6 months
Exclusion Criteria:
- Significant history of vaginal pathology (malignancy, prolapse)
- Hysterectomy, conization
- History of abnormal Pap smear in the previous year (ASC-US, AG-US and LSIL and high grade according to Bethesda).
- Breakthrough bleeding;
- Clinical symptoms suggestive of genital infection within 10 days prior to the examination of the study,
- Antibiotic systemically within 10 days prior to the examination of the study,
- Immunosuppressive or immunomodulatory treatment in the last six months and corticosteroids (> 20 mg / day for 5 days) in last 3 months
- Presence of other sexually transmitted infection detected in samples at pre-inclusion visit (Mycoplasma, Chlamydia, gonorrhea, Trichomonas, Candida albicans and Syphilis)
- A person participating in another research including a period of exclusion still ongoing selection
- Population called vulnerable (minors, persons under guardianship, or deprived of liberty by a judicial decision.
Contacts and Locations| Contact: Corinne DESAINT, PhD | 01 58 41 28 59 | corinne.desaint@cch.aphp.fr |
| Contact: Naouel NEDJAAI | 01 58 41 29 28 | naouel.nedjaai@cch.aphp.fr |
| France | |
| Centre d'investigation clinique de vaccinologie Cochin Pasteur (CIC BT505) | Not yet recruiting |
| Paris, France, 75 679 | |
| Principal Investigator: | Fréderic LUCHT, PU PH | Service des Maladies Infectieuses et Tropicales,CIC-EC, CHU Saint Etienne |
| Principal Investigator: | Odile LAUNAY, PU PH | Centre d'investigation clinique de vaccinologie Cochin Pasteur (CIC BT505), hôpital Cochin Paris |
More Information
No publications provided
| Responsible Party: | French National Institute for Health and Medical Research-French National Agency for Research on AIDS and Viral Hepatitis (Inserm-ANRS) |
| ClinicalTrials.gov Identifier: | NCT01715103 History of Changes |
| Other Study ID Numbers: | ANRS VEP1, MUCOVAC |
| Study First Received: | October 10, 2012 |
| Last Updated: | October 24, 2012 |
| Health Authority: | France: L’Agence nationale de sécurité du médicament et des produits de santé |
Keywords provided by French National Institute for Health and Medical Research-French National Agency for Research on AIDS and Viral Hepatitis (Inserm-ANRS):
|
HIV infection mucosa immunological parameters genital sampling healthy women volunteers |
ClinicalTrials.gov processed this record on May 23, 2013