Misoprostol Dosing in BMI Greater Than 30

Summary

The investigators are performing a randomized controlled-trial investigating if 50mcg (compared to 25 mcg) of vaginal misoprostol reduces the time from induction start to delivery in obese women.

Timeline

Start

2022-06-01

Primary completion

2023-07-14

Completion

2023-07-17

Outcome

Missed primary endpoint

paper No difference was found in the primary outcome of time to delivery (21.6 hours vs 18.6 hours; PMID 38367750 ↗

Publications

• Background Grobman WA, Rice MM, Reddy UM, Tita ATN, Silver RM, Mallett G, Hill K, Thom EA, El-Sayed YY, Perez-Delboy A, Rouse DJ, Saade GR, Boggess KA, Chauhan SP, Iams JD, Chien EK, Casey BM, Gibbs RS, Srinivas SK, Swamy GK, Simhan HN, Macones GA; Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. Labor Induction versus Expectant Management in Low-Risk Nulliparous Women. N Engl J Med. 2018 Aug 9;379(6):513-523. doi: 10.1056/NEJMoa1800566.
• Background McDonagh M, Skelly AC, Tilden E, Brodt ED, Dana T, Hart E, Kantner SN, Fu R, Hermesch AC. Outpatient Cervical Ripening: A Systematic Review and Meta-analysis. Obstet Gynecol. 2021 Jun 1;137(6):1091-1101. doi: 10.1097/AOG.0000000000004382.
• Background Carbone JF, Tuuli MG, Fogertey PJ, Roehl KA, Macones GA. Combination of Foley bulb and vaginal misoprostol compared with vaginal misoprostol alone for cervical ripening and labor induction: a randomized controlled trial. Obstet Gynecol. 2013 Feb;121(2 Pt 1):247-252. doi: 10.1097/AOG.0b013e31827e5dca.
• Background Viteri OA, Tabsh KK, Alrais MA, Salazar XC, Lopez JM, Fok RY, Chauhan SP, Sibai BM. Transcervical Foley Balloon Plus Vaginal Misoprostol versus Vaginal Misoprostol Alone for Cervical Ripening in Nulliparous Obese Women: A Multicenter, Randomized, Comparative-Effectiveness Trial. Am J Perinatol. 2021 Aug;38(S 01):e123-e128. doi: 10.1055/s-0040-1708805. Epub 2020 Apr 16.
• Background Al-Ibraheemi Z, Brustman L, Bimson BE, Porat N, Rosenn B. Misoprostol With Foley Bulb Compared With Misoprostol Alone for Cervical Ripening: A Randomized Controlled Trial. Obstet Gynecol. 2018 Jan;131(1):23-29. doi: 10.1097/AOG.0000000000002403.
• Background Adhikari EH, Nelson DB, McIntire DD, Leveno KJ. Foley Bulb Added to an Oral Misoprostol Induction Protocol: A Cluster Randomized Trial. Obstet Gynecol. 2020 Nov;136(5):953-961. doi: 10.1097/AOG.0000000000004123.
• Background Martin JA, Hamilton BE, Osterman MJK, Driscoll AK. Births: Final Data for 2019. Natl Vital Stat Rep. 2021 Apr;70(2):1-51.
• Background Obesity. In: Cunningham F, Leveno KJ, Bloom SL, Dashe JS, Hoffman BL, Casey BM, Spong CY. eds. Williams Obstetrics, 25e. McGraw Hill; 2018.
• Background Rossi RM, Requarth EW, Warshak CR, Dufendach K, Hall ES, DeFranco EA. Predictive Model for Failed Induction of Labor Among Obese Women. Obstet Gynecol. 2019 Sep;134(3):485-493. doi: 10.1097/AOG.0000000000003377.
• Background Knutson, Karin Britta MD; Leung, Katherine MPH; Allocco, Elizabeth Rose MD; Minor, Kathleen MD; Delpapa, Ellen MD; Lauring, Julianne MD Time to Delivery Following Induction of Labor in Obese Versus Normal-Weight Women [11S], Obstetrics & Gynecology: May 2019 - Volume 133 - Issue - p 205S
• Background Staudenmaier, Emily K. DO; Chatterton, Carolyn G. DO, MPH; Montanez, Marelli DO; Sampino, Isabella; Vullo, John J. DO; Gurram, Padmalatha MD, MSCTR Induction of Labor Compared With Expectant Management and Risk of Cesarean Delivery in Obese Women [7F], Obstetrics & Gynecology: May 2019 - Volume 133 - Issue - p 63S-64S
• Background Pevzner L, Powers BL, Rayburn WF, Rumney P, Wing DA. Effects of maternal obesity on duration and outcomes of prostaglandin cervical ripening and labor induction. Obstet Gynecol. 2009 Dec;114(6):1315-1321. doi: 10.1097/AOG.0b013e3181bfb39f.
• Background Ellis JA, Brown CM, Barger B, Carlson NS. Influence of Maternal Obesity on Labor Induction: A Systematic Review and Meta-Analysis. J Midwifery Womens Health. 2019 Jan;64(1):55-67. doi: 10.1111/jmwh.12935. Epub 2019 Jan 16.
• Background Wolfe KB, Rossi RA, Warshak CR. The effect of maternal obesity on the rate of failed induction of labor. Am J Obstet Gynecol. 2011 Aug;205(2):128.e1-7. doi: 10.1016/j.ajog.2011.03.051. Epub 2011 Apr 8.
• Background Grobman WA, Bailit J, Lai Y, Reddy UM, Wapner RJ, Varner MW, Thorp JM Jr, Leveno KJ, Caritis SN, Prasad M, Tita ATN, Saade G, Sorokin Y, Rouse DJ, Blackwell SC, Tolosa JE; Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. Defining failed induction of labor. Am J Obstet Gynecol. 2018 Jan;218(1):122.e1-122.e8. doi: 10.1016/j.ajog.2017.11.556. Epub 2017 Nov 11.
• Background Norman SM, Tuuli MG, Odibo AO, Caughey AB, Roehl KA, Cahill AG. The effects of obesity on the first stage of labor. Obstet Gynecol. 2012 Jul;120(1):130-5. doi: 10.1097/AOG.0b013e318259589c.
• Background Stefely E, Warshak CR. Contraction frequency after administration of misoprostol in obese versus nonobese women. J Matern Fetal Neonatal Med. 2019 Nov;32(21):3526-3530. doi: 10.1080/14767058.2018.1465919. Epub 2018 Apr 30.
• Background ACOG Practice Bulletin No. 107: Induction of labor. Obstet Gynecol. 2009 Aug;114(2 Pt 1):386-397. doi: 10.1097/AOG.0b013e3181b48ef5. No abstract available.
• Background Sanchez-Ramos L, Kaunitz AM, Delke I. Labor induction with 25 microg versus 50 microg intravaginal misoprostol: a systematic review. Obstet Gynecol. 2002 Jan;99(1):145-51. doi: 10.1016/s0029-7844(01)01644-1.
• Background Handal-Orefice RC, Friedman AM, Chouinard SM, Eke AC, Feinberg B, Politch J, Iverson RE, Yarrington CD. Oral or Vaginal Misoprostol for Labor Induction and Cesarean Delivery Risk. Obstet Gynecol. 2019 Jul;134(1):10-16. doi: 10.1097/AOG.0000000000003274.
• Background Farah LA, Sanchez-Ramos L, Rosa C, Del Valle GO, Gaudier FL, Delke I, Kaunitz AM. Randomized trial of two doses of the prostaglandin E1 analog misoprostol for labor induction. Am J Obstet Gynecol. 1997 Aug;177(2):364-9; discussion 369-71. doi: 10.1016/s0002-9378(97)70199-6.
• Background Diro M, Adra A, Gilles JM, Nassar A, Rodriguez A, Salamat SM, Beydoun SN, O'Sullivan MJ, Yasin SY, Burkett G. A double-blind randomized trial of two dose regimens of misoprostol for cervical ripening and labor induction. J Matern Fetal Med. 1999 May-Jun;8(3):114-8. doi: 10.1002/(SICI)1520-6661(199905/06)8:33.0.CO;2-5.
• Background Levine LD, Downes KL, Elovitz MA, Parry S, Sammel MD, Srinivas SK. Mechanical and Pharmacologic Methods of Labor Induction: A Randomized Controlled Trial. Obstet Gynecol. 2016 Dec;128(6):1357-1364. doi: 10.1097/AOG.0000000000001778.
• Background Lenoir-Wijnkoop I, van der Beek EM, Garssen J, Nuijten MJ, Uauy RD. Health economic modeling to assess short-term costs of maternal overweight, gestational diabetes, and related macrosomia - a pilot evaluation. Front Pharmacol. 2015 May 20;6:103. doi: 10.3389/fphar.2015.00103. eCollection 2015.
• Background Harvey S, Rach D, Stainton MC, Jarrell J, Brant R. Evaluation of satisfaction with midwifery care. Midwifery. 2002 Dec;18(4):260-7. doi: 10.1054/midw.2002.0317.
• Saucedo AM, Alvarez M, Macones GA, Cahill AG, Harper LM. Optimal misoprostol dosing among patients with a body mass index greater than 30: a randomized controlled trial. Am J Obstet Gynecol. 2024 May;230(5):565.e1-565.e16. doi: 10.1016/j.ajog.2024.02.004. Epub 2024 Feb 15.

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Indications