Detection of Probiotic Strains in Vaginal Swabs Collected From Healthy Adults Consuming a Probiotic Supplement: a Pilot Study (VSS)
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 8
- 试验地点
- 2
- 主要终点
- Strains detection
研究概览
简要总结
The aim of this trial is to detect the presence of various probiotic strains in vaginal swabs of healthy women orally consuming a probiotic supplement for 4 weeks.
详细描述
Participants recruited from the university community in the Southeast U.S. will participate in a pilot, open-label interventional study for approximately 6 weeks following obtainment of informed consent. Participants will be asked to maintain their usual diets with the exception of probiotic supplements, probiotic fortified products or foods with added fiber supplements.
On the first day of the study, participants will take part in a 1-week pre-baseline period where they will begin daily questionnaires inquiring about gastrointestinal symptoms, stool form and number, stress, and medications taken.
On the first day of the intervention period (Day 1), participants will self collect a baseline vaginal swab sample, a skin swab, a vaginal pH swab, and a stool sample. Participants will consume 2 capsules every morning and 2 capsules every evening for four weeks (from D1 to D28).
Participants will self collect a vaginal swab sample, a skin swab, a vaginal pH swab, and a stool sample at Day 14 and at Day 28. An additional vaginal swab sample will be collected at Day 35 to assess for probiotic strains persistence.
At the conclusion of the study, participants will be instructed to return any unused supplements to the study site.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Basic Science
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 40 Years（Adult）
- 性别
- Female
- 接受健康志愿者
- 是
入选标准
- •Be a healthy female between the ages of 18 and 40 years,
- •Have a regular and predictable menstrual cycle,
- •Be on an oral contraceptive,
- •Willing and able to consume a probiotic supplement for 4 weeks,
- •Willing and able to complete daily questionnaires online regarding dietary intake and general health and well-being, including gastrointestinal habits,
- •Willing to discontinue consumption of probiotics supplements and probiotic fortified products two weeks prior the beginning of the study and throughout the study,
- •Willing to discontinue consumption of fiber supplements,
- •Willing to provide a stool sample two times during the study,
- •Willing to provide one vaginal swab sample four times during the study,
- •Willing to provide one skin swab sample (skin between the vagina and the anus), three times during the study,
- •Typically have one stool per day,
- •Willing to complete a pregnancy test before consuming the study supplement.
排除标准
- •Women who will be menstruating during the sample collection times,
- •Women who only use condoms, barrier, spermicide, or natural methods as their sole contraceptive method,
- •Women using any intrauterine device (IUD), birth control shot or implant,
- •Women who are lactating, know that they are pregnant, are attempting to get pregnant or test positive on a pregnancy test,
- •Pre-menopausal or menopausal women,
- •Women who have used any vaginal probiotics in the previous three months,
- •Use of oral or local antibiotics or antifungal within the past month,
- •Currently being treated for a severe chronic disease (cancer, renal failure, chronic inflammatory digestive or gastro-intestinal disease, immunodeficiency, etc.),
- •Women who have been diagnosed with any gynecological diseases or conditions (fibroma, endometriosis, etc.),
- •Women who have been diagnosed with secondary dysmenorrhea,
- •Women with intolerance, allergy or hypersensitivity to milk, soy or yeast,
- •With ongoing symptoms of vaginal and/or urinary tract infection,
- •Women using a treatment for vaginal sepsis or urosepsis.
结局指标
主要结局
Strains detection
时间窗: Baseline, Day 14, Day 28, Day 35
Change in presence or absence of the probiotic bacterial strains in the vaginal swab samples after 4 weeks of orally consuming the probiotic supplement.
次要结局
- Strains persistence(Baseline, Day 35)
- Strains recovery in stool samples(Baseline, Day 28)
- Strains viability(Baseline, Day 14, Day 28, Day 35)
- Stool frequency(weekly, up to 6 weeks)
- Vaginal pH(Baseline, Day 14, Day 28)
- Stool consistency(weekly, up to 6 weeks)
- Stress(weekly, up to 6 weeks)
- Strains detection in skin swabs(Baseline, Day 14, Day 28)