- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT00340275
Longitudinal Study of Vaginal Flora
30 juni 2017 uppdaterad av: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Bacterial vaginosis is a syndrome manifested by adverse alterations in vaginal microbial flora.
It is present in 10 to 25% of women in the general population, and is the most common vaginal infection.
It has been associated with a number of adverse sequelae in reproductive health including acquisition of HIV, pelvic inflammatory disease, cervical dysplasia, and complications of gynecological procedures.
During pregnancy it has been associated with an increased risk of preterm birth an postpartum maternal infection.
However, the vaginal microbial flora remains poorly understood.
Information on variation in microbial flora and its association with BV from a longitudinal study is unavailable.
This prospective observational study aims to advance our knowledge of the natural history and abnormal alteration in vaginal microbial flora, and to identify risk factors that are associated with these changes.
A total of 5500 healthy, non-pregnant women of reproductive age will be enrolled and followed up in Birmingham, Alabama, for one year (baseline visit plus once every three months afterwards, totaling 5 visits).
Detailed information on sociodemographic status, medical history, hygiene practice, sexual behavior and psychosocial stress will be collected through in-person interviews.
Routine gynecological and dental examinations will be carried out during the study visits.
Samples of vaginal secretion and blood will be collected.
Laboratory tests to quantify vaginal microbial flora and to identify infection of bacterial vaginosis as well as common sexually transmitted diseases will be conducted.
This project is expected to complete in 5 years.
Studieöversikt
Status
Avslutad
Betingelser
Detaljerad beskrivning
Bacterial vaginosis is a syndrome manifested by adverse alterations in vaginal microbial flora.
It is present in 10 to 25% of women in the general population, and is the most common vaginal infection.
It has been associated with a number of adverse sequelae in reproductive health including acquisition of HIV, pelvic inflammatory disease, cervical dysplasia, and complications of gynecological procedures.
During pregnancy it has been associated with an increased risk of preterm birth and postpartum maternal infection.
However, the vaginal microbial flora remains poorly understood.
Information on variation in microbial flora and its association with BV from a longitudinal study is unavailable.
This prospective observational study aims to advance our knowledge of the natural history and abnormal alteration in vaginal microbial flora, and to identify risk factors that are associated with these changes.
A total of 5500 healthy, non-pregnant women of reproductive age will be enrolled and followed up in Birmingham, Alabama, for one year (baseline visit plus once every three months afterwards, totaling 5 visits).
Detailed information on sociodemographic status, medical history, hygiene practice, sexual behavior and psychosocial stress will be collected through in-person interviews.
Routine gynecological and dental examinations will be carried out during the study visits.
Samples of vaginal secretion and blood will be collected.
Laboratory tests to quantify vaginal microbial flora and to identify infection of bacterial vaginosis as well as common sexually transmitted diseases will be conducted.
This project is expected to complete in 5 years.
Studietyp
Observationell
Inskrivning (Förväntat)
5500
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
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Alabama
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Birmingham, Alabama, Förenta staterna
- University of Alabama
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
15 år till 44 år (Barn, Vuxen)
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Kvinna
Beskrivning
- ELIGIBILITY CRITERIA:
- Females, age 15-44.
- Since bacterial vaginosis is primarily a condition of reproductive-age women, this study will be restricted to women regarded by demographers as reproductive age.
- Non-pregnant women whose last menstrual period is later than expected will undergo a urine pregnancy test. Women who become pregnant while on study will complete their next regularly scheduled study visit, following which their participation will terminate.
EXCLUSION CRITERIA:
Immunocompromised status
Receiving or expected to receive in the next 12 months cytotoxic or immunosuppressive drugs.
Receiving or expected to receive in the next 12 months one or more 30-day courses of corticosteroids.
Congenital or acquired immune deficiency; known HIV positivity.
- Primary or secondary affective disorder, psychosis, emotional or intellectual limitations that preclude informed consent.
- Non-fluency in English.
- Post-menopausal (natural or surgical).
- Status post hysterectomy or expected to undergo hysterectomy in the next 12 months.
- Status post pelvic radiotherapy, or expected to undergo pelvic radiotherapy in the next 12 months.
- Receiving or expected to receive chronic (daily for at least 30 days) antibiotics in the next 12 months.
- Planning to move out of the area in the next 12 months.
- Participating or expected to participate during the next 12 months in a clinical trial in which antibiotics or topical microbicides will be administered in a blinded manner.
- Women who unexpectedly develop one of these conditions during their participation will continue to be followed, unless a specific contraindication arises.
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Publikationer och användbara länkar
Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.
Allmänna publikationer
- Goldenberg RL, Klebanoff MA, Nugent R, Krohn MA, Hillier S, Andrews WW. Bacterial colonization of the vagina during pregnancy in four ethnic groups. Vaginal Infections and Prematurity Study Group. Am J Obstet Gynecol. 1996 May;174(5):1618-21. doi: 10.1016/s0002-9378(96)70617-8.
- Fanchin R, Harmas A, Benaoudia F, Lundkvist U, Olivennes F, Frydman R. Microbial flora of the cervix assessed at the time of embryo transfer adversely affects in vitro fertilization outcome. Fertil Steril. 1998 Nov;70(5):866-70. doi: 10.1016/s0015-0282(98)00277-5.
- Amsel R, Totten PA, Spiegel CA, Chen KC, Eschenbach D, Holmes KK. Nonspecific vaginitis. Diagnostic criteria and microbial and epidemiologic associations. Am J Med. 1983 Jan;74(1):14-22. doi: 10.1016/0002-9343(83)91112-9.
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart
14 april 1999
Avslutad studie
18 november 2010
Studieregistreringsdatum
Först inskickad
19 juni 2006
Först inskickad som uppfyllde QC-kriterierna
19 juni 2006
Första postat (Uppskatta)
21 juni 2006
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
2 juli 2017
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
30 juni 2017
Senast verifierad
18 november 2010
Mer information
Termer relaterade till denna studie
Andra studie-ID-nummer
- 999999023
- OH99-CH-N023
Denna information hämtades direkt från webbplatsen clinicaltrials.gov utan några ändringar. Om du har några önskemål om att ändra, ta bort eller uppdatera dina studieuppgifter, vänligen kontakta register@clinicaltrials.gov. Så snart en ändring har implementerats på clinicaltrials.gov, kommer denna att uppdateras automatiskt även på vår webbplats .
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