Oxybutynin and Omega-3 for OAB (Overactive Bladder)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT02070042
Recruitment Status : Terminated (Lack of participation)
First Posted : February 24, 2014
Last Update Posted : January 31, 2018
Information provided by (Responsible Party):
TriHealth Inc.

February 13, 2014
February 24, 2014
January 31, 2018
February 2014
September 2015   (Final data collection date for primary outcome measure)
Change from baseline in urinary voids per day [ Time Frame: Baseline, 3 weeks and 6 weeks after enrollment ]
The number of times the subjects urinates per day will be decreased
Change from baseline in urinary voids per day [ Time Frame: Baseline, 3 weeks and 6 weeks after enrollment ]
Complete list of historical versions of study NCT02070042 on Archive Site
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Oxybutynin and Omega-3 for OAB (Overactive Bladder)
Randomized Controlled Trial of Oxybutynin and Omega-3 Fatty Acid Supplementation Versus Oxybutynin and Placebo for Treatment of Overactive Bladder in Women

We aim to evaluate whether the addition of Omega-3 fatty acids to oxybutynin, a standard first-line treatment for overactive bladder syndrome, will improve symptoms and quality of life. Secondarily, we will evaluate whether Omega-3 fatty acids help reduce the adverse effects of oxybutynin.


  • Primary: Omega-3 will enhance the beneficial role of oxybutynin in the treatment of overactive bladder (OAB)
  • Secondary: Omega-3 will reduce the side effects of dry eyes and constipation associated with oxybutynin

Overactive bladder (OAB) is a troubling condition affecting over 17 million people in the U.S. with an estimated prevalence of 16.9% among women. The cost of this burden nationally was estimated at $66 billion in 2007. The morbidity of the disease impacts quality of life scores and increases risks of falls and fractures.

First-line therapeutic modalities for OAB focus on anticholinergic medications and behavioral modification. However, the indirect impact of these medications on the gut and salivary glands, have been troubling. Resultant side effect profiles with anticholinergic medications have caused a high rate of cessation, with some studies showing as low as 14% of patients still taking their medication at a one-year follow up. Given the burden and morbidity associated with this highly prevalent condition among women, our aim is to improve our therapeutic options, while possibly reducing subsequent side effects. As such, there is potential to revolutionize treatment for this condition.

Omega-3 fatty acids have been evaluated with success in treating many medical conditions. Specifically, diseases with an inflammatory component, such as Crohn's disease, ulcerative colitis, and rheumatoid arthritis have seen promising improvements with the addition of Omega-3 fatty acids. Other studies have shown a beneficial role in the treatment of dry eyes, depression, burn injuries, and even cancer. Although not previously explored in the setting of irritative bladder conditions, we believe that Omega-3 fatty acids may be helpful in interventions for OAB via several purported mechanisms.

Prostaglandin E2 (PGE2) and inflammation have both been implicated in the biochemistry of overactive bladder. Reduction in PGE2 may be paramount in reducing the symptoms of overactive bladder. In fact, a proposed mechanism of action of the success of anticholinergic medications, commonly first line treatment for OAB, is reduction of PGE2. Animal models have demonstrated that non-steroidal anti-inflammatory drugs (NSAIDs) can be used to decrease micturition frequency, which is thought to be a result of the anti-inflammatory process. In humans, anti-inflammatory medications have been shown to decrease nocturia and even cause urinary retention in high doses. Omega-3 fatty acids have been shown to have anti-inflammatory actions and the ability to reduce PGE2. We therefore, have reason to believe it may be an effective adjunct to current therapy to improve overactive bladder symptoms.

Additionally, Omega-3 fatty acids have been implemented in the treatment of dry eyes and animal studies have shown their role in increasing intestinal motility.Hence, we propose that Omega-3 fatty acids may help alleviate the common side effects of dry eyes and constipation associated with common anticholinergic therapies.

Not Applicable
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Triple (Participant, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Overactive Bladder
  • Drug: Omega 3 Fatty Acid
    Trunature® Triple Strength Omega-3, given twice a day. Each capsule contains 647 mg Eicosapentaenoic Acid (EPA) and 253 mg Docosahexaenoic Acid (DHA).
  • Drug: Placebo
    Placebo capsules (olive oil) twice a day
    Other Name: Olive Oil
  • Experimental: Omega- 3 Fatty Acid
    The patient will receive oxybutynin 5 mg twice daily (BID). The patients in the study group will receive a 0.9 gm capsule of Omega-3 BID. The amount of medication was chosen based on dosage used in prior studies and the current FDA recommendations to not exceed 2gm/day of omega-3 in dietary supplementation.
    Intervention: Drug: Omega 3 Fatty Acid
  • Placebo Comparator: Placebo
    Seagate® Extra Virgin Olive oil capsules
    Intervention: Drug: Placebo
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*   Includes publications given by the data provider as well as publications identified by Identifier (NCT Number) in Medline.
September 2015
September 2015   (Final data collection date for primary outcome measure)

Inclusion Criteria:

Women between the ages of 18-85; Desiring treatment for symptoms of urinary frequency, defined as >8 voids/day and/or nocturia > 1 void/night or urge incontinence episodes of >1/day

Exclusion Criteria:

Bleeding disorder; Uncontrolled diabetes; Hypotension; Liver disease, such as hepatitis A/B/C, cirrhosis, acute fatty liver, liver tumors; Post voiding residual (PVR) > 150 on more than one occasion; Uncontrolled narrow-angle glaucoma; Hematuria of unknown cause; Obstructive uropathy; Known hypersensitivity to study medications; Recent use of study/omega 3 or anticholinergic medication in the prior 3 weeks with an inability to discontinue this medication; Planning any surgery in the 6 weeks of study duration

Sexes Eligible for Study: Female
18 Years to 85 Years   (Adult, Older Adult)
Contact information is only displayed when the study is recruiting subjects
United States
Not Provided
Plan to Share IPD: No
TriHealth Inc.
TriHealth Inc.
Not Provided
Study Chair: Rachel Pauls, MD TriHealth Inc.
TriHealth Inc.
January 2018

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP