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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT03250208
Other study ID # 209830
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date September 1, 2017
Est. completion date July 31, 2018

Study information

Verified date January 2019
Source Loyola University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The study will enroll healthy pre-menopausal female volunteers in the community. These subjects will act as their own controls. The subjects will collect voided urine and peri-urethral swab specimens daily for several months. They will also be asked to collect vaginal and peri-rectal swab specimens at various time points. Subjects will document various lifestyle variables daily. During the middle of the study, subjects will be randomized to probiotic vs placebo. Using bacterial culture and 16S rRNA gene sequencing, the study will measure the bacterial populations of several anatomic sites longitudinally: voided urine, peri-urethra, vagina, and peri-rectal. The study hypothesizes that oral probiotic usage will alter the bacterial populations and ratio of Lactobacillus to E. coli within each of these sites. Additionally, the study hypothesizes that the changes within each site will occur first in the rectum (i.e. GI tract), followed by the vagina, and then the urethra and bladder.

Using the prospective design of daily sampling and lifestyle variable documentation, the study may be able to identify possible influences on microbiome stability within the sampled sites. The lifestyle variables recorded include: diet, medication usage, menstruation, sexual activity, and alcohol consumption.

This pilot study will establish the variance of the outcome variables among healthy women and confirm the emergence of the probiotic with the recommended dose. With this information, future researchers will be able to calculate the power needed for a larger randomized trial. This trial would also randomize patients who may be at risk for a UTI to receive a probiotic vs placebo. The primary outcome measurement will be the change in the ratio of Lactobacillus to E. coli. As a secondary aim, the study will evaluate the incidence of UTI in the patients.


Description:

In this study, the primary aim is to identify the change in the Lactobacillus E. coli ratio within the lower urinary tract, the vagina, and the peri-rectal area in response to an oral probiotic as well as to evaluate the stability of these changes following cessation of an oral probiotic. Voided urine and peri-urethral, vaginal, and peri-rectal swab samples will be analyzed for their Lactobacillus E. coli ratio using bacterial culture as well as 16S ribosomal RNA gene sequencing. The study will compare the ratios present before, during, and after oral probiotic usage. The study will also compare the change in ratios between subjects taking the oral probiotic and those taking an oral placebo.

A secondary aim is to identify the normal daily changes (i.e. stability) in the bacterial populations within the voided urine, including whether host intrinsic (e.g. diet, hygiene, and sexual activity) and extrinsic (e.g. menstruation) factors affect the stability of bacterial populations. The bacterial populations defining the voided urine samples will be correlated to various daily subject-reported lifestyle variables. These include diet, hygiene, sexual activity, medication usage, alcohol usage, menstruation, and urinary-related symptoms. These lifestyle variables will be recorded each day for the entire duration of the study.


Recruitment information / eligibility

Status Completed
Enrollment 8
Est. completion date July 31, 2018
Est. primary completion date July 31, 2018
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Female
Age group 18 Years and older
Eligibility Inclusion Criteria:

- Pre-menopausal healthy women in the community (As defined by presence of menses at least once in the last 12 months).

- Age 18 years or older.

- Agreement to collect daily samples (varying combinations of voided, periurethral, and perianal swabs) for 3 months and bring the samples to Loyola University Medical Center

- Agree to record and return a daily lifestyle diary

- Understand and agree to taking daily oral probiotic or placebo while being blinded

- Able to read and speak English

- Able to obtain clean-catch urine

Exclusion Criteria:

- Non-English speaking women

- Allergy or contraindication to the probiotic used in this study

- Prior participation in the study

- Currently pregnant or lactating or planning a pregnancy within 6 months of consenting to participate in the study

- Inability to obtain a 'clean catch' urine sample

- Subjects with an indwelling catheter

- Males are excluded from participation

- Women planning time away for more than 7 days following consent to participate in the study

Study Design


Related Conditions & MeSH terms


Intervention

Dietary Supplement:
Probiotic
Participants randomized to the intervention group will receive Women's Fem Dophilus ® by Jarrow Formulas.
Other:
Placebo
Participants randomized to the control group will receive a placebo containing no active ingredients

Locations

Country Name City State
United States Loyola University Medical Center Maywood Illinois

Sponsors (1)

Lead Sponsor Collaborator
Loyola University

Country where clinical trial is conducted

United States, 

References & Publications (9)

Beerepoot MA, ter Riet G, Verbon A, Nys S, de Reijke TM, Geerlings SE. [Non-antibiotic prophylaxis for recurrent urinary-tract infections]. Ned Tijdschr Geneeskd. 2006 Mar 11;150(10):541-4. Review. Dutch. — View Citation

FitzGerald MP, Brubaker L. Colpocleisis and urinary incontinence. Am J Obstet Gynecol. 2003 Nov;189(5):1241-4. — View Citation

Fitzgerald MP, Richter HE, Bradley CS, Ye W, Visco AC, Cundiff GW, Zyczynski HM, Fine P, Weber AM; Pelvic Floor Disorders Network. Pelvic support, pelvic symptoms, and patient satisfaction after colpocleisis. Int Urogynecol J Pelvic Floor Dysfunct. 2008 Dec;19(12):1603-9. doi: 10.1007/s00192-008-0696-6. Epub 2008 Aug 9. — View Citation

Fok CS, McKinley K, Mueller ER, Kenton K, Schreckenberger P, Wolfe A, Brubaker L. Day of surgery urine cultures identify urogynecologic patients at increased risk for postoperative urinary tract infection. J Urol. 2013 May;189(5):1721-4. doi: 10.1016/j.juro.2012.11.167. Epub 2012 Dec 3. — View Citation

Foxman B, Cronenwett AE, Spino C, Berger MB, Morgan DM. Cranberry juice capsules and urinary tract infection after surgery: results of a randomized trial. Am J Obstet Gynecol. 2015 Aug;213(2):194.e1-8. doi: 10.1016/j.ajog.2015.04.003. Epub 2015 Apr 13. — View Citation

Hooton TM. Recurrent urinary tract infection in women. Int J Antimicrob Agents. 2001 Apr;17(4):259-68. Review. — View Citation

Raz R, Stamm WE. A controlled trial of intravaginal estriol in postmenopausal women with recurrent urinary tract infections. N Engl J Med. 1993 Sep 9;329(11):753-6. — View Citation

Urinary Incontinence Treatment Network (UITN). The Trial of Mid-Urethral Slings (TOMUS): Design and Methodology. J Appl Res. 2008;8(1). pii: AlboVol8No1. — View Citation

Wilton L, Kollarova M, Heeley E, Shakir S. Relative risk of vaginal candidiasis after use of antibiotics compared with antidepressants in women: postmarketing surveillance data in England. Drug Saf. 2003;26(8):589-97. — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Change in Lactobacillus E. coli ratio in the rectum We will measure participants' rectal Lactobacillus E. coli ratio at baseline and after treatment. The change in this ratio will be recorded for each participant and compared between the placebo and intervention groups. 95 days
Secondary Change in Lactobacillus E. coli ratio in the vagina We will measure participants' vaginal Lactobacillus E. coli ratio at baseline and after treatment. The change in this ratio will be recorded for each participant and compared between the placebo and intervention groups. 95 days
Secondary Change in Lactobacillus E. coli ratio in the urethra We will measure participants' urethral Lactobacillus E. coli ratio at baseline and after treatment. The change in this ratio will be recorded for each participant and compared between the placebo and intervention groups. 95 days
Secondary Prevalence of urinary tract infections At the final study visit, we will record whether each participant experienced or did not experience a urinary tract infection (UTI). The odds of a UTI among those in the intervention cohort will be compared to the odds of a UTI in the placebo cohort. 95 days
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