Overactive Bladder Syndrome Clinical Trial
Official title:
Exploring the Additive Effect of Vibegron to Intradetrusor OnabotulinumtoxinA in Women With Refractory Overactive Bladder
Verified date | May 2024 |
Source | University of Alabama at Birmingham |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
Defined by the International Continence Society (ICS) as urinary "urgency, with or without urge incontinence, usually with frequency and nocturia", overactive bladder (OAB) presents as challenging syndrome to treat. OAB is a very prevalent condition, affecting between 11.8% to 16% of the population with equal impact on women and men and growing prevalence with age. OAB is associated with a significant financial burden to both patients and the health care system with a estimated cost of US $82.6 billion in 2020. Traditionally, a stepwise approach has been taken in managing OAB; starting first with lifestyle modifications, followed by anticholinergic or beta-3-agonist medications as the second line, and lastly, intradetrusor onabotulinumtoxinA injections, percutaneous tibial nerve stimulation (PTNS), and sacral neuromodulation (SNM) as third line options. Given the limitations of this stepwise approach in patients with refractory OAB, combination therapy offers patients an increasing number of treatment options but the literature surrounding the efficacy of combination therapy is somewhat limited. A 2019 systematic review revealed there were only 32 studies in the current OAB literature that explored the role of combination therapy, and the majority of these studies examined the effect of lifestyle modifications with another intervention strategy, highlighting an untapped area of research5. To date, there has only been a single pilot study conducted in Taiwan examining the effect of intradetrusor onabotulinumtoxinA injections with the addition of mirabegron for patients with refractory OAB. This study by Wang et al. explored the therapeutic impact of adding either an anticholinergic, solifenacin, or a beta-3 agonist, mirabegron, to intradetrusor onabotulinumtoxinA injections as compared to each other as well as patients receiving onabotulinumtoxinA alone. Ninety patients were enrolled with 30 patients allocated to the solifenacin arm, 31 to the mirabegron arm, and 29 to the control group. While the baseline data among the three arms was comparable, the percentage of OAB wet in the mirabegron plus onabotulinumtoxinA group was significantly less at 3-, 6-, 9-, and 12-month intervals than the solifenacin plus onabotulinumtoxinA and the onabotulinumtoxinA alone groups. While this pilot study reveals the potential additive benefit of a beta-3 agonist to intradetrusor onabotulinumtoxinA, no further studies have been performed to date and there are no studies regarding the additive benefit of vibegron, which has a more tolerable side effect profile and is not as limited by as many contraindications as mirabegron. If vibegron can potentiate the effect of intradetrusor onabotulinumtoxinA, this presents a new treatment strategy for OAB and could offer patients an additional line of therapy before having to pursue more invasive and costly management option of sacral neuro modulation.
Status | Not yet recruiting |
Enrollment | 54 |
Est. completion date | January 2026 |
Est. primary completion date | October 2025 |
Accepts healthy volunteers | No |
Gender | Female |
Age group | 18 Years and older |
Eligibility | Inclusion Criteria: 1. Women undergoing intradetrusor botulinum injections for refractory OAB 2. Age 18 years old or greater 3. Fluency and literacy in English 4. Capacity to provide consent Exclusion Criteria: 1. Allergy to Vibegron 2. Currently pregnant or planning to become pregnant 3. Breastfeeding 4. Current digoxin use |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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University of Alabama at Birmingham |
Abrams P, Cardozo L, Fall M, Griffiths D, Rosier P, Ulmsten U, Van Kerrebroeck P, Victor A, Wein A; Standardisation Sub-Committee of the International Continence Society. The standardisation of terminology in lower urinary tract function: report from the standardisation sub-committee of the International Continence Society. Urology. 2003 Jan;61(1):37-49. doi: 10.1016/s0090-4295(02)02243-4. No abstract available. — View Citation
Coyne KS, Wein A, Nicholson S, Kvasz M, Chen CI, Milsom I. Economic burden of urgency urinary incontinence in the United States: a systematic review. J Manag Care Pharm. 2014 Feb;20(2):130-40. doi: 10.18553/jmcp.2014.20.2.130. — View Citation
Irwin DE, Milsom I, Hunskaar S, Reilly K, Kopp Z, Herschorn S, Coyne K, Kelleher C, Hampel C, Artibani W, Abrams P. Population-based survey of urinary incontinence, overactive bladder, and other lower urinary tract symptoms in five countries: results of the EPIC study. Eur Urol. 2006 Dec;50(6):1306-14; discussion 1314-5. doi: 10.1016/j.eururo.2006.09.019. Epub 2006 Oct 2. — View Citation
Kasman A, Stave C, Elliott CS. Combination therapy in overactive bladder-untapped research opportunities: A systematic review of the literature. Neurourol Urodyn. 2019 Nov;38(8):2083-2092. doi: 10.1002/nau.24158. Epub 2019 Sep 4. — View Citation
Sancaktar M, Ceyhan ST, Akyol I, Muhcu M, Alanbay I, Mutlu Ercan C, Atay V. The outcome of adding peripheral neuromodulation (Stoller afferent neuro-stimulation) to anti-muscarinic therapy in women with severe overactive bladder. Gynecol Endocrinol. 2010 Oct;26(10):729-32. doi: 10.3109/09513591003649815. — View Citation
Stanley R, Richter HE, Meyer I, Blanchard C. Posterior Tibial Nerve Stimulation With versus Without Mirabegron in Women with Refractory UUI and OAB-wet: A Randomized Controlled Trial. International Continence Society 2023; 2023; Toronto, Canada.
Stewart WF, Van Rooyen JB, Cundiff GW, Abrams P, Herzog AR, Corey R, Hunt TL, Wein AJ. Prevalence and burden of overactive bladder in the United States. World J Urol. 2003 May;20(6):327-36. doi: 10.1007/s00345-002-0301-4. Epub 2002 Nov 15. — View Citation
Wang CC, Lee CL, Hwang YT, Kuo HC. Adding mirabegron after intravesical onabotulinumtoxinA injection improves therapeutic effects in patients with refractory overactive bladder. Low Urin Tract Symptoms. 2021 Oct;13(4):440-447. doi: 10.1111/luts.12384. Epub 2021 May 6. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Change in urinary urgency incontinence (UUI) episodes on 3 day voiding diary at 12 weeks after starting treatment as compared to baseline | Patients will be asked to complete a 3 day voiding diary at baseline and at 12 weeks following intradetrusor onabotulinumtoxinA injections and oral medication. The mean change in UUI episodes will be compared between the onabotulinumtoxinA injection plus vibegron verus onabotulinumtoxinA injection plus placebo groups. | Pre-intervention baseline to 12 weeks following initiation of intervention | |
Secondary | Change in Symptom Distress as Measured by the Urogenital Distress Index (UDI-6) Questionnaire Pre-Intervention versus 12 weeks Post-Intervention | The UDI-6 is the short form validated patient questionnaire that was developed from the urogenital distress inventory (UDI). It consists of six questions that focus on lower urinary tract dysfunction including obstructive, irritative, and stress symptoms. The responses are scored as follows: (0) not at all, (1) slightly, (2) moderately, (3) greatly. The mean score is multiplied by 33 1/3 to convert to a 0 to 100 scale with higher scores indicative of more symptoms distress. Subjects will complete the UDI-6 survey at baseline and at 12 weeks post-intervention. The mean change in UDI-6 responses will be compared. | Pre-intervention baseline to 12 weeks following initiation of intervention | |
Secondary | Change in UUI (Urge Urinary Incontinence)/OAB (Overactive Bladder) Quality of Life as Measured by the Incontinence Impact Questionnaire Short Form (IIQ-7) Questionnaire Pre-Intervention versus 12 weeks Post-Intervention | The IIQ-7 is the short form validated patient questionnaire that was developed from the incontinence impact questionnaire (IIQ). It consists of seven questions that focus on the impact of UUI on physical activity, travel, relationships, and emotional health. The responses are scored as follows: (0) not at all, (1) slightly, (2) moderately, (3) greatly. The mean score is multiplied by 33 1/3 to convert to a 0 to 100 scale with higher scores indicative of more symptoms distress. Subjects will complete the IIQ-7 survey at baseline and at 12 weeks post-intervention. The mean change in IIQ-7 responses will be compared. | Pre-intervention baseline to 12 weeks following initiation of intervention | |
Secondary | hange in UUI (Urge Urinary Incontinence)/OAB (Overactive Bladder) Quality of Life as Measured by the Overactive Bladder Questionnaire-Short Form (OAB-q SF) Questionnaire Pre-Intervention versus 12 weeks Post-Intervention | The OAB-q SF is the short form validated patient questionnaire that was developed from the Overactive Bladder Questionnaire (OAB-q). It consists of six questions that focus on the impact of bladder symptoms over the past 4 weeks. The responses are scored as follows: (1) not at all, (2) a little bit, (3) somewhat, (4) quite a bit, (5) a great deal, (6) a very great deal. The mean score is converted to a 0 to 100 scale with higher scores indicative of more symptoms distress. Subjects will complete the OAB-q SF survey at baseline and at 12 weeks post-intervention. The mean change in OAB-q SF responses will be compared. | Pre-intervention baseline to 12 weeks following initiation of intervention | |
Secondary | Duration to repeat onabotulinumtoxinA injection | Patient require repeat intradetrusor onabotulinumtoxinA injection to treat refractory OAB. A chart review will be performed to determine time interval between initial onabotulinumtoxinA injection and subsequent injection to see if there is a difference with the addition of vibegron as compared to placebo. | Initiation of intervention until repeat injection, anticipate average of 1 year |
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