Urinary IncontinenceBEMORNCT02868463
Bladder Environment: Microbiome Oxygen Relationship
An observational study of Urinary Incontinence and UTI's, run by Loyola University at 1 site in United States.
Trial summary
The purpose of this study is to characterize bladder urinary oxygen tension (BUOT) in women whose urinary microbiomes contains at least one anaerobic bacterial species versus women whose urinary microbiomes do not contain anaerobes. Read more about this study
- Who is it for?
- Ages 18 years and older, women onlyHealthy volunteers can take part
- Conditions the study is for
- Urinary Incontinence, UTI's
- How many people
- 115 participants
- Where
- 1 siteUnited States
- Study dates
- 2 Jun 2016to 17 Aug 2017
- 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 years and older
- Women only
- Healthy volunteers accepted
- Adult, Older adult
Study population: Female only participants are being studied
Who may be able to join
- Age > 18
- No indwelling urethral catheter
- At least 50 mL of urine in their bladder as determined by the clinic's bladder scanner
Who cannot join
- Non-English speaker
Trial locations and contacts
1 site in 1 country.
United States1 site
Loyola University Health System
Maywood, Illinois, 60153
About this study
The purpose of this study is to characterize bladder urinary oxygen tension (BUOT) in women whose urinary microbiomes contains at least one anaerobic bacterial species versus women whose urinary microbiomes do not contain anaerobes.
Read the detailed description
Throughout the human body, microbial communities (microbiota) depend on their environment, including the level of oxygen (anaerobic vs. aerobic). Recently published evidence documents the existence of a female urinary microbiota (FUM) and provides evidence that the FUM differ based on lower urinary tract symptoms, i.e. no bladder symptoms, urgency urinary incontinence, and urinary tract infection1-4. Members of the FUM include bacteria that require oxygen (aerobes), those that abhor oxygen (anaerobes) and those that thrive in both conditions (facultative anaerobes)5. This last group of microbes is known to consume low levels of oxygen to maintain an anaerobic environment. Yet, virtually nothing is known about oxygen levels in bladder urine even though bladder urine oxygen tension may both affect and be affected by the FUM. Given the role oxygen levels play in other parts of the human body, the investigators request resources to investigate bladder urine oxygen levels. The study is designed to understand if BUOT levels differ in FUMs with and without at least one anaerobe, and if so, if there are any patient factors or urinary symptoms associated with certain BUOT
- Conditions
- Urinary Incontinence, UTI's
- Keywords
- oxygen tension, Female Urinary Microbiome, Urinary Tract Symptoms, Urine Oxygen Level
- Medical subject headings
- Urinary Incontinence
What is being measured
The primary outcome is the main question the study is designed to answer.
Oxygen Tension Measurement of Bladder Urine and Correlation of These Oxygen Profiles with Expanded Urine Culture Bacterial Growth in Women
Throughout the human body, microbial communities (microbiota) depend on their environment, including the level of oxygen (anaerobic vs. aerobic). Recently published evidence documents the existence of a female urinary microbiota (FUM) and provides evidence that the FUM differ based on lower urinary tract symptoms, i.e. no bladder symptoms, urgency urinary incontinence, and urinary tract infection. Members of the FUM include bacteria that require oxygen (aerobes), those that abhor oxygen (anaerobes) and those that thrive in both conditions (facultative anaerobes). This last group of microbes is known to consume low levels of oxygen to maintain an anaerobic environment. Yet, virtually nothing is known about oxygen levels in bladder urine even though bladder urine oxygen tension may both affect and be affected by the FUM.
Measured: The study completion is expected at 2 years.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted16 Aug 2016 (estimated)
- Study start2 Jun 2016
- Primary completion17 Aug 2017
- Study completion17 Aug 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Urinary IncontinenceStudies of the same condition, open and under way.
- 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
- Case only
- Time perspective
- Cross-sectional
- Enrolment
- 115 participants (actual)
Sponsor and investigators
- Lead sponsor
- Loyola University
- Sponsor type
- University, hospital or other
- Collaborators
- Alan J. Wolfe
- Responsible party
- Principal investigator, Elizabeth Mueller, Loyola University
- Investigators
- Elizabeth R Mueller, MD, Principal investigator, Loyola University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02868463
- Sponsor's protocol ID
- 208221
- Acronym
- BEMOR
- Status last verified
- Feb 2018
- First submitted
- 4 Aug 2016
- Last updated
- 20 Feb 2018
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- Undecided
Publications
Brubaker L, Wolfe AJ. The new world of the urinary microbiota in women. Am J Obstet Gynecol. 2015 Nov;213(5):644-9. doi: 10.1016/j.ajog.2015.05.032. Epub 2015 May 21.
PubMed 26003055Pearce MM, Zilliox MJ, Rosenfeld AB, Thomas-White KJ, Richter HE, Nager CW, Visco AG, Nygaard IE, Barber MD, Schaffer J, Moalli P, Sung VW, Smith AL, Rogers R, Nolen TL, Wallace D, Meikle SF, Gai X, Wolfe AJ, Brubaker L; Pelvic Floor Disorders Network. The female urinary microbiome in urgency urinary incontinence. Am J Obstet Gynecol. 2015 Sep;213(3):347.e1-11. doi: 10.1016/j.ajog.2015.07.009. Epub 2015 Jul 23.
PubMed 26210757Brubaker L, Nager CW, Richter HE, Visco A, Nygaard I, Barber MD, Schaffer J, Meikle S, Wallace D, Shibata N, Wolfe AJ. Urinary bacteria in adult women with urgency urinary incontinence. Int Urogynecol J. 2014 Sep;25(9):1179-84. doi: 10.1007/s00192-013-2325-2. Epub 2014 Feb 11.
PubMed 24515544Pearce MM, Hilt EE, Rosenfeld AB, Zilliox MJ, Thomas-White K, Fok C, Kliethermes S, Schreckenberger PC, Brubaker L, Gai X, Wolfe AJ. The female urinary microbiome: a comparison of women with and without urgency urinary incontinence. mBio. 2014 Jul 8;5(4):e01283-14. doi: 10.1128/mBio.01283-14.
PubMed 25006228
Study at a glance
From the registry record, last updated by the sponsor on 20 Feb 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Bladder Environment: Microbiome Oxygen Relationship
- ClinicalTrials.gov ID
- NCT02868463
- Acronym / sponsor ID
- BEMOR / 208221
- Conditions
- Urinary Incontinence, UTI's
- Keywords
- oxygen tension, Female Urinary Microbiome, Urinary Tract Symptoms, Urine Oxygen Level
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 115 participants (actual)
- Lead sponsor
- Loyola UniversityUniversity, hospital or other
- Collaborators
- Alan J. Wolfe
- Study start
- 2 Jun 2016 (actual)
- Primary completion
- 17 Aug 2017 (actual)
- Study completion
- 17 Aug 2017 (actual)
- First posted
- 16 Aug 2016 (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 purpose of this study is to characterize bladder urinary oxygen tension (BUOT) in women whose urinary microbiomes contains at least one anaerobic bacterial species versus women whose urinary microbiomes do not contain anaerobes.
Detailed description
Throughout the human body, microbial communities (microbiota) depend on their environment, including the level of oxygen (anaerobic vs. aerobic). Recently published evidence documents the existence of a female urinary microbiota (FUM) and provides evidence that the FUM differ based on lower urinary tract symptoms, i.e. no bladder symptoms, urgency urinary incontinence, and urinary tract infection1-4. Members of the FUM include bacteria that require oxygen (aerobes), those that abhor oxygen (anaerobes) and those that thrive in both conditions (facultative anaerobes)5. This last group of microbes is known to consume low levels of oxygen to maintain an anaerobic environment. Yet, virtually nothing is known about oxygen levels in bladder urine even though bladder urine oxygen tension may both affect and be affected by the FUM. Given the role oxygen levels play in other parts of the human body, the investigators request resources to investigate bladder urine oxygen levels. The study is designed to understand if BUOT levels differ in FUMs with and without at least one anaerobe, and if so, if there are any patient factors or urinary symptoms associated with certain BUOT
Study design
- Observational model
- Case only
- Time perspective
- Cross-sectional
Who may qualify
- Ages
- 18 years and older
- Sex
- Female only
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
- Study population
- Female only participants are being studied
Key inclusion criteria (3 listed)
- Age > 18
- No indwelling urethral catheter
- At least 50 mL of urine in their bladder as determined by the clinic's bladder scanner
Key exclusion criteria (1 listed)
- Non-English speaker
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
Oxygen Tension Measurement of Bladder Urine and Correlation of These Oxygen Profiles with Expanded Urine Culture Bacterial Growth in Women
Time frame: The study completion is expected at 2 years.
Throughout the human body, microbial communities (microbiota) depend on their environment, including the level of oxygen (anaerobic vs. aerobic). Recently published evidence documents the existence of a female urinary microbiota (FUM) and provides evidence that the FUM differ based on lower urinary tract symptoms, i.e. no bladder symptoms, urgency urinary incontinence, and urinary tract infection. Members of the FUM include bacteria that require oxygen (aerobes), those that abhor oxygen (anaerobes) and those that thrive in both conditions (facultative anaerobes). This last group of microbes is known to consume low levels of oxygen to maintain an anaerobic environment. Yet, virtually nothing is known about oxygen levels in bladder urine even though bladder urine oxygen tension may both affect and be affected by the FUM.
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 20 Feb 2018.
- Background: PubMed 26003055Brubaker L, Wolfe AJ. The new world of the urinary microbiota in women. Am J Obstet Gynecol. 2015 Nov;213(5):644-9. doi: 10.1016/j.ajog.2015.05.032. Epub 2015 May 21.
- Background: PubMed 26210757Pearce MM, Zilliox MJ, Rosenfeld AB, Thomas-White KJ, Richter HE, Nager CW, Visco AG, Nygaard IE, Barber MD, Schaffer J, Moalli P, Sung VW, Smith AL, Rogers R, Nolen TL, Wallace D, Meikle SF, Gai X, Wolfe AJ, Brubaker L; Pelvic Floor Disorders Network. The female urinary microbiome in urgency urinary incontinence. Am J Obstet Gynecol. 2015 Sep;213(3):347.e1-11. doi: 10.1016/j.ajog.2015.07.009. Epub 2015 Jul 23.
- Background: PubMed 24515544Brubaker L, Nager CW, Richter HE, Visco A, Nygaard I, Barber MD, Schaffer J, Meikle S, Wallace D, Shibata N, Wolfe AJ. Urinary bacteria in adult women with urgency urinary incontinence. Int Urogynecol J. 2014 Sep;25(9):1179-84. doi: 10.1007/s00192-013-2325-2. Epub 2014 Feb 11.
- Background: PubMed 25006228Pearce MM, Hilt EE, Rosenfeld AB, Zilliox MJ, Thomas-White K, Fok C, Kliethermes S, Schreckenberger PC, Brubaker L, Gai X, Wolfe AJ. The female urinary microbiome: a comparison of women with and without urgency urinary incontinence. mBio. 2014 Jul 8;5(4):e01283-14. doi: 10.1128/mBio.01283-14.
- Individual participant dataSharing planned: Undecided
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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.
Elizabeth R Mueller, MD principal investigator
Loyola University
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 Urinary Incontinence and UTI's, run by Loyola University 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 3 inclusion and 1 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 20 Feb 2018. 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?
Oxygen Tension Measurement of Bladder Urine and Correlation of These Oxygen Profiles with Expanded Urine Culture Bacterial Growth in Women (time frame: The study completion is expected at 2 years.). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02868463, which also lists 4 linked publications.
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 20 Feb 2018.