Interstitial CystitisNCT03041194
Dietary Impact on Urinary pH in Women With Interstitial Cystitis
An observational study of Interstitial Cystitis, run by St. Louis University.
Trial summary
This is a pilot study on subjects who suffer from Interstitial Cystitis (IC) to assess the dietary affects on urine pH in relation to their symptoms. The goal of this pilot study is to determine which foods/beverages affect urinary pH and exacerbate patient's symptoms. Read more about this study
- Who is it for?
- Ages 18 to 70 years, women only
- Conditions the study is for
- Interstitial Cystitis
- What is being tested?
- dietary affects
- How many people
- 17 participants
- Where
- No sites listed yet
- Study dates
- Jan 2015to Dec 2015
- 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 to 70 years
- Women only
- No healthy volunteers
- Adult, Older adult
Study population: female, all backgrounds and races
Who may be able to join
- Women, diagnosed with Interstitial Cystitis or with a presumptive clinical diagnosis of IC
- New IC patients who agree to hydrodistention and cystoscopy, the standard of care for diagnosis of IC
Who cannot join
- Subjects who are diagnosed with Fibromyalgia Syndrome and subjects that are pregnant.
About this study
Official title: Title A Pilot Study to Evaluate the Dietary Impact on Urinary pH in Interstitial Cystitis Pilot Study to Evaluate the Dietary Impact on Urinary pH in Interstitial Cystitis
This is a pilot study on subjects who suffer from Interstitial Cystitis (IC) to assess the dietary affects on urine pH in relation to their symptoms. The goal of this pilot study is to determine which foods/beverages affect urinary pH and exacerbate patient's symptoms.
Read the detailed description
Interstitial cystitis or painful bladder syndrome is a condition that is chronic and often debilitating in nature. Interstitial cystitis is commonly defined by symptoms of urinary urgency and frequency associated with pelvic pain. Around one million men and women in the United States and Europe suffer from this condition. The diagnosis of Interstitial Cystitis is one of exclusion based on cystoscopy findings and clinical symptoms. Common symptoms of Interstitial Cystitis include urinary frequency, urinary urgency, dysuria, and pain in the lower abdominal region, bladder, vagina, urethra, or in the perinea . Women between ages 40 and 60 are the most commonly affect by Interstitial Cystitis. In the Nurses' Healthy Study I and II the prevalence of Interstitial Cystitis was 52-67 individuals out of 100,000. There is no single cause of Interstitial Cystitis however, there are several known theories to the cause of Interstitial Cystitis. A popular hypothesis is that a defect in the glycosaminoglycan layer of the bladder epithelium allows leakage and absorption of urinary solutes. The major solute that is responsible for causing bladder symptoms when the epithelium is injured is potassium. The long held notion is that patients with Interstitial Cystitis should avoid acidic foods. This logic is largely based on anecdotal data and questionnaires of foods, beverages and supplements that increase symptoms. Controversy exists that Interstitial Cystitis diet restricts many more foods than necessary in an attempt to decrease Interstitial Cystitis symptoms. Current questionnaires-based data suggest eliminating tomatoes, citrus fruits, vitamin C, artificial sweeteners, carbonated and alcoholic beverages, and spicy foods which are thought to exacerbate symptoms, while calcium glycerophosphate and sodium bicarbonate may improve symptoms. Though the literature review, the investigators did not find any analytical studies that correlated diet with Interstitial Cystitis symptoms or that the ingestion of acidic foods exacerbate Interstitial Cystitis symptoms. Based on the lack of analytical data and the impact of acidic food on IC symptoms this study is going to evaluate the potential renal acid load and net acid excretion of foods to determine which foods change urinary pH.
- Conditions
- Interstitial Cystitis
- Being tested
- dietary affects
- Medical subject headings
- Cystitis, Interstitial
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
dietary affectsOther
Dietary affects on urine pH in relation to Interstitial cystitis symptoms
What is being measured
The primary outcome is the main question the study is designed to answer.
The impact of urinary pH
urinary pH.
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Feb 2017 (estimated)
- Study startJan 2015
- Primary completionDec 2015
- Study completionDec 2015
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Interstitial CystitisStudies 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
- Cohort
- Time perspective
- Prospective
- Enrolment
- 17 participants (actual)
Sponsor and investigators
- Lead sponsor
- St. Louis University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Rosemary Catanzaro, RD, St. Louis University
- Investigators
- Rosemary Catanzaro, MS RD, Principal investigator, St. Louis University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03041194
- Sponsor's protocol ID
- 25300
- Status last verified
- Sep 2017
- First submitted
- 19 Jan 2017
- Last updated
- 25 Sep 2017
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 25 Sep 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Title A Pilot Study to Evaluate the Dietary Impact on Urinary pH in Interstitial Cystitis Pilot Study to Evaluate the Dietary Impact on Urinary pH in Interstitial Cystitis
- ClinicalTrials.gov ID
- NCT03041194
- Acronym / sponsor ID
- 25300
- Conditions
- Interstitial Cystitis
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 17 participants (actual)
- Lead sponsor
- St. Louis UniversityUniversity, hospital or other
- Study start
- Jan 2015 (actual)
- Primary completion
- Dec 2015 (actual)
- Study completion
- Dec 2015 (actual)
- First posted
- 2 Feb 2017 (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.
This is a pilot study on subjects who suffer from Interstitial Cystitis (IC) to assess the dietary affects on urine pH in relation to their symptoms. The goal of this pilot study is to determine which foods/beverages affect urinary pH and exacerbate patient's symptoms.
Detailed description
Interstitial cystitis or painful bladder syndrome is a condition that is chronic and often debilitating in nature. Interstitial cystitis is commonly defined by symptoms of urinary urgency and frequency associated with pelvic pain. Around one million men and women in the United States and Europe suffer from this condition. The diagnosis of Interstitial Cystitis is one of exclusion based on cystoscopy findings and clinical symptoms. Common symptoms of Interstitial Cystitis include urinary frequency, urinary urgency, dysuria, and pain in the lower abdominal region, bladder, vagina, urethra, or in the perinea . Women between ages 40 and 60 are the most commonly affect by Interstitial Cystitis. In the Nurses' Healthy Study I and II the prevalence of Interstitial Cystitis was 52-67 individuals out of 100,000. There is no single cause of Interstitial Cystitis however, there are several known theories to the cause of Interstitial Cystitis. A popular hypothesis is that a defect in the glycosaminoglycan layer of the bladder epithelium allows leakage and absorption of urinary solutes. The major solute that is responsible for causing bladder symptoms when the epithelium is injured is potassium. The long held notion is that patients with Interstitial Cystitis should avoid acidic foods. This logic is largely based on anecdotal data and questionnaires of foods, beverages and supplements that increase symptoms. Controversy exists that Interstitial Cystitis diet restricts many more foods than necessary in an attempt to decrease Interstitial Cystitis symptoms. Current questionnaires-based data suggest eliminating tomatoes, citrus fruits, vitamin C, artificial sweeteners, carbonated and alcoholic beverages, and spicy foods which are thought to exacerbate symptoms, while calcium glycerophosphate and sodium bicarbonate may improve symptoms. Though the literature review, the investigators did not find any analytical studies that correlated diet with Interstitial Cystitis symptoms or that the ingestion of acidic foods exacerbate Interstitial Cystitis symptoms. Based on the lack of analytical data and the impact of acidic food on IC symptoms this study is going to evaluate the potential renal acid load and net acid excretion of foods to determine which foods change urinary pH.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
Who may qualify
- Ages
- 18 to 70 years
- Sex
- Female only
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- female, all backgrounds and races
Key inclusion criteria (2 listed)
- Women, diagnosed with Interstitial Cystitis or with a presumptive clinical diagnosis of IC
- New IC patients who agree to hydrodistention and cystoscopy, the standard of care for diagnosis of IC
Key exclusion criteria (1 listed)
- Subjects who are diagnosed with Fibromyalgia Syndrome and subjects that are pregnant.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| dietary affectsDietary affects on urine pH in relation to Interstitial cystitis symptoms | Other | – |
Primary outcome
The impact of urinary pH
Time frame: 1 year
urinary pH.
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 25 Sep 2017.
- Individual participant dataSharing planned: No
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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.
Rosemary Catanzaro, MS RD principal investigator
St. Louis University
Questions about this trial
What is this clinical trial studying?
An observational study of Interstitial Cystitis, run by St. Louis University.
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 2 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 25 Sep 2017. Status can change between updates, so confirm with the study contact before making plans.
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?
The impact of urinary pH (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
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 25 Sep 2017.