Vaginal Baclofen Suppositories in Chronic Pelvic Pain

Summary

The purpose of this study is to evaluate if baclofen vaginal suppositories improve symptoms of Chronic Pelvic Pain (CPP). Participants in this study will take four short questionnaires prior to being randomized. Randomization is like flipping a coin; participants have an equal likelihood of being randomized to the treatment group (vaginal baclofen suppositories) or placebo group (vaginal suppository without baclofen ingredient). Participants will take their assigned treatment nightly for 8 weeks. Follow up visits will be at the 4 and 8 week time frames, when questionnaires will again be completed. Participants may receive additional treatments for CPP during the course of the study. After 8 weeks Participants will be offered a prescription for baclofen suppositories and the study drug will be stopped. Follow up on patient symptoms with questionnaires will again occur at 12 weeks.

Timeline

Start

2024-01-01

Primary completion

2026-01-01

Completion

2026-01-01

Publications

• Background Doggweiler R, Whitmore KE, Meijlink JM, Drake MJ, Frawley H, Nordling J, Hanno P, Fraser MO, Homma Y, Garrido G, Gomes MJ, Elneil S, van de Merwe JP, Lin ATL, Tomoe H. A standard for terminology in chronic pelvic pain syndromes: A report from the chronic pelvic pain working group of the international continence society. Neurourol Urodyn. 2017 Apr;36(4):984-1008. doi: 10.1002/nau.23072. Epub 2016 Aug 26.
• Background Lamvu G, Carrillo J, Ouyang C, Rapkin A. Chronic Pelvic Pain in Women: A Review. JAMA. 2021 Jun 15;325(23):2381-2391. doi: 10.1001/jama.2021.2631.
• Background Chronic Pelvic Pain: ACOG Practice Bulletin, Number 218. Obstet Gynecol. 2020 Mar;135(3):e98-e109. doi: 10.1097/AOG.0000000000003716.
• Background Mathias SD, Kuppermann M, Liberman RF, Lipschutz RC, Steege JF. Chronic pelvic pain: prevalence, health-related quality of life, and economic correlates. Obstet Gynecol. 1996 Mar;87(3):321-7. doi: 10.1016/0029-7844(95)00458-0.
• Background Brawn J, Morotti M, Zondervan KT, Becker CM, Vincent K. Central changes associated with chronic pelvic pain and endometriosis. Hum Reprod Update. 2014 Sep-Oct;20(5):737-47. doi: 10.1093/humupd/dmu025. Epub 2014 Jun 11.
• Background Shafrir AL, Martel E, Missmer SA, Clauw DJ, Harte SE, As-Sanie S, Sieberg CB. Pelvic floor, abdominal and uterine tenderness in relation to pressure pain sensitivity among women with endometriosis and chronic pelvic pain. Eur J Obstet Gynecol Reprod Biol. 2021 Sep;264:247-253. doi: 10.1016/j.ejogrb.2021.07.029. Epub 2021 Jul 22.
• Background Messelink B, Benson T, Berghmans B, Bo K, Corcos J, Fowler C, Laycock J, Lim PH, van Lunsen R, a Nijeholt GL, Pemberton J, Wang A, Watier A, Van Kerrebroeck P. Standardization of terminology of pelvic floor muscle function and dysfunction: report from the pelvic floor clinical assessment group of the International Continence Society. Neurourol Urodyn. 2005;24(4):374-80. doi: 10.1002/nau.20144. No abstract available.
• Background Moldwin RM, Fariello JY. Myofascial trigger points of the pelvic floor: associations with urological pain syndromes and treatment strategies including injection therapy. Curr Urol Rep. 2013 Oct;14(5):409-17. doi: 10.1007/s11934-013-0360-7.
• Background Frederice CP, Brito LGO, Pereira GMV, Lunardi ALB, Juliato CRT. Interventional treatment for myofascial pelvic floor pain in women: systematic review with meta-analysis. Int Urogynecol J. 2021 May;32(5):1087-1096. doi: 10.1007/s00192-021-04725-x. Epub 2021 Feb 27.
• Background Stone RH, Abousaud M, Abousaud A, Kobak W. A Systematic Review of Intravaginal Diazepam for the Treatment of Pelvic Floor Hypertonic Disorder. J Clin Pharmacol. 2020 Dec;60 Suppl 2:S110-S120. doi: 10.1002/jcph.1775.
• Background Juergens S. Alprazolam and diazepam: addiction potential. J Subst Abuse Treat. 1991;8(1-2):43-51. doi: 10.1016/0740-5472(91)90026-7.
• Background Das S, Palappalllil DS, Purushothaman ST, Rajan V. An Unusual Case of Baclofen Abuse. Indian J Psychol Med. 2016 Sep-Oct;38(5):475-476. doi: 10.4103/0253-7176.191383.
• Background Meister MR, Sutcliffe S, Ghetti C, Chu CM, Spitznagle T, Warren DK, Lowder JL. Development of a standardized, reproducible screening examination for assessment of pelvic floor myofascial pain. Am J Obstet Gynecol. 2019 Mar;220(3):255.e1-255.e9. doi: 10.1016/j.ajog.2018.11.1106. Epub 2018 Dec 7.
• Background Amtmann D, Kim J, Chung H, Askew RL, Park R, Cook KF. Minimally important differences for Patient Reported Outcomes Measurement Information System pain interference for individuals with back pain. J Pain Res. 2016 Apr 27;9:251-5. doi: 10.2147/JPR.S93391. eCollection 2016.

Drugs

Indications