Real-time Continuous Glucose Monitoring

NCT03326232 | Unknown FDA Device

• 1 other identifier: 17-07-FB-0181
• Study Type: interventional
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

Gestational diabetes (GDM) is a condition of carbohydrate intolerance with onset or first recognition in pregnancy. The prevalence of GDM is as high as 25% in some populations and continues to rise with the increase in obesity and type-2 diabetes. GDM places the pregnancy at great risk to both the mother and the neonate. Recent studies have proven that interventions including dietary and medications lower the risk to the pregnancy. Both the American College of Obstetrics and Gynecology (ACOG) and the American Diabetes Association (ADA) recommend dietary interventions with daily glucose monitoring as the initial treatment of choice. Meanwhile, outside of pregnancy, promising new technologies such as continuous glucose monitors (CGM) are revolutionizing diabetic care. The investigators seek to determine if the constant feedback of a real-time CGM system would improve glycemic control compared to traditional management in GDM

Conditions

Gestational Diabetes

Outcome Measures

Primary Outcomes (1)

• Mean blood glucose (mg/dL)

  Mean blood glucose (mg/dL) in the real-time CGM group compared to self-monitoring of blood glucose (SMBG) group during the 4th week of study from data collected on the 6 day of CGM use during that week.

  week 1 vs. week 4

Secondary Outcomes (22)

• Failed dietary therapy

  week 1 vs. week 4

• Time spent in normoglycemia

  week 1 vs. week 4

• Time spent in hypoglycemia

  week 1 vs. week 4

• BMI at time of delivery

  BMI at time of delivery

• Gestational hypertension

  enrollement vs delivery.

Study Arms (2)

Blinded continuous glucose monitoring

EXPERIMENTAL

The blinded CGM group will be using the Medtronic iPro2 system (Enlite sensor + iPro2 transmitter).

Device: Continuous glucose monitoring

Real time continuous glucose monitoring

EXPERIMENTAL

The real-time CGM group will be using the 530g system (inactivated 530g insulin pump (no insulin used, only used as display for CGM), Enlite sensor, MiniLink transmitter)

Device: Continuous glucose monitoring

Interventions

Continuous glucose monitoring DEVICE

The blinded CGM group will be using the Medtronic iPro2 system (Enlite sensor + iPro2 transmitter). The real-time CGM group will be using the 530g system (inactivated 530g insulin pump (no insulin used, only used as display for CGM), Enlite sensor, MiniLink transmitter)

Blinded continuous glucose monitoring; Real time continuous glucose monitoring

Eligibility Criteria

• Age: 18 Years - 45 Years
• Gender Eligibility Details: Pregnant females with gestational diabetes
• Healthy Volunteers: No
• Age Groups: Adult (18-64)

You may qualify if:

• maternal age 18 to 45
• singleton gestation
• BMI less than 45
• g glucose challenge greater than 135 mg/dL
• g 3 hr oral glucose tolerance test greater than 2 abnormal values using the Carpenter Coustan cut offs (fasting greater than 95 mg/dL, 1 hr greater than 180 mg/dL, 2 hr greater than 155 mg/dL, 3 hr greater than 140 mg/dL)
• attended the maternal-fetal medicine diabetes education class

You may not qualify if:

• maternal age less than18 or greater than 45
• multifetal gestation
• BMI greater than 45
• pregestational diabetes
• gestational diabetes diagnosed before 24 weeks
• did not attend the diabetes education class
• known fetal anomaly
• known fetal aneuploidy
• required ongoing treatment with medications that can exacerbate hyperglycemia (steroids, hydroxyprogesterone caproate injections (Makena), highly active antiretroviral therapy HIV medications)
• learning disability
• concern for non compliance with medical care
• imminent preterm delivery due to maternal disease or fetal conditions
• is not willing to wear CGM

Sponsors & Collaborators

• Eastern Virginia Medical School: lead
• Medtronic: collaborator

Study Sites (1)

Eastern Virginia Medical School

Norfolk, Virginia, 23507, United States

RECRUITING

Related Publications (22)

• Practice Bulletin No. 137: Gestational diabetes mellitus. Obstet Gynecol. 2013 Aug;122(2 Pt 1):406-416. doi: 10.1097/01.AOG.0000433006.09219.f1.

  PMID: 23969827 BACKGROUND

• Moyer VA; U.S. Preventive Services Task Force. Screening for gestational diabetes mellitus: U.S. Preventive Services Task Force recommendation statement. Ann Intern Med. 2014 Mar 18;160(6):414-20. doi: 10.7326/M13-2905.

  PMID: 24424622 BACKGROUND

• Correa A, Bardenheier B, Elixhauser A, Geiss LS, Gregg E. Trends in prevalence of diabetes among delivery hospitalizations, United States, 1993-2009. Matern Child Health J. 2015 Mar;19(3):635-42. doi: 10.1007/s10995-014-1553-5.

  PMID: 24996952 BACKGROUND

• England LJ, Dietz PM, Njoroge T, Callaghan WM, Bruce C, Buus RM, Williamson DF. Preventing type 2 diabetes: public health implications for women with a history of gestational diabetes mellitus. Am J Obstet Gynecol. 2009 Apr;200(4):365.e1-8. doi: 10.1016/j.ajog.2008.06.031. Epub 2008 Aug 8.

  PMID: 18691691 BACKGROUND

• Boney CM, Verma A, Tucker R, Vohr BR. Metabolic syndrome in childhood: association with birth weight, maternal obesity, and gestational diabetes mellitus. Pediatrics. 2005 Mar;115(3):e290-6. doi: 10.1542/peds.2004-1808.

  PMID: 15741354 BACKGROUND

• Malcolm JC, Lawson ML, Gaboury I, Lough G, Keely E. Glucose tolerance of offspring of mother with gestational diabetes mellitus in a low-risk population. Diabet Med. 2006 May;23(5):565-70. doi: 10.1111/j.1464-5491.2006.01840.x.

  PMID: 16681566 BACKGROUND

• Gillman MW, Rifas-Shiman S, Berkey CS, Field AE, Colditz GA. Maternal gestational diabetes, birth weight, and adolescent obesity. Pediatrics. 2003 Mar;111(3):e221-6. doi: 10.1542/peds.111.3.e221.

  PMID: 12612275 BACKGROUND

• HAPO Study Cooperative Research Group; Metzger BE, Lowe LP, Dyer AR, Trimble ER, Chaovarindr U, Coustan DR, Hadden DR, McCance DR, Hod M, McIntyre HD, Oats JJ, Persson B, Rogers MS, Sacks DA. Hyperglycemia and adverse pregnancy outcomes. N Engl J Med. 2008 May 8;358(19):1991-2002. doi: 10.1056/NEJMoa0707943.

  PMID: 18463375 BACKGROUND

• Crowther CA, Hiller JE, Moss JR, McPhee AJ, Jeffries WS, Robinson JS; Australian Carbohydrate Intolerance Study in Pregnant Women (ACHOIS) Trial Group. Effect of treatment of gestational diabetes mellitus on pregnancy outcomes. N Engl J Med. 2005 Jun 16;352(24):2477-86. doi: 10.1056/NEJMoa042973. Epub 2005 Jun 12.

  PMID: 15951574 BACKGROUND

• Landon MB, Spong CY, Thom E, Carpenter MW, Ramin SM, Casey B, Wapner RJ, Varner MW, Rouse DJ, Thorp JM Jr, Sciscione A, Catalano P, Harper M, Saade G, Lain KY, Sorokin Y, Peaceman AM, Tolosa JE, Anderson GB; Eunice Kennedy Shriver National Institute of Child Health and Human Development Maternal-Fetal Medicine Units Network. A multicenter, randomized trial of treatment for mild gestational diabetes. N Engl J Med. 2009 Oct 1;361(14):1339-48. doi: 10.1056/NEJMoa0902430.

  PMID: 19797280 BACKGROUND

• Hartling L, Dryden DM, Guthrie A, Muise M, Vandermeer B, Donovan L. Benefits and harms of treating gestational diabetes mellitus: a systematic review and meta-analysis for the U.S. Preventive Services Task Force and the National Institutes of Health Office of Medical Applications of Research. Ann Intern Med. 2013 Jul 16;159(2):123-9. doi: 10.7326/0003-4819-159-2-201307160-00661.

  PMID: 23712381 BACKGROUND

• Klonoff DC. Continuous glucose monitoring: roadmap for 21st century diabetes therapy. Diabetes Care. 2005 May;28(5):1231-9. doi: 10.2337/diacare.28.5.1231. No abstract available.

  PMID: 15855600 BACKGROUND

• Mastrototaro J, Shin J, Marcus A, Sulur G; STAR 1 Clinical Trial Investigators. The accuracy and efficacy of real-time continuous glucose monitoring sensor in patients with type 1 diabetes. Diabetes Technol Ther. 2008 Oct;10(5):385-90. doi: 10.1089/dia.2007.0291.

  PMID: 18715215 BACKGROUND

• Kestila KK, Ekblad UU, Ronnemaa T. Continuous glucose monitoring versus self-monitoring of blood glucose in the treatment of gestational diabetes mellitus. Diabetes Res Clin Pract. 2007 Aug;77(2):174-9. doi: 10.1016/j.diabres.2006.12.012. Epub 2007 Jan 16.

  PMID: 17234297 BACKGROUND

• Murphy HR, Rayman G, Lewis K, Kelly S, Johal B, Duffield K, Fowler D, Campbell PJ, Temple RC. Effectiveness of continuous glucose monitoring in pregnant women with diabetes: randomised clinical trial. BMJ. 2008 Sep 25;337:a1680. doi: 10.1136/bmj.a1680.

  PMID: 18818254 BACKGROUND

• Moy FM, Ray A, Buckley BS. Techniques of monitoring blood glucose during pregnancy for women with pre-existing diabetes. Cochrane Database Syst Rev. 2014 Apr 30;(4):CD009613. doi: 10.1002/14651858.CD009613.pub2.

  PMID: 24782359 BACKGROUND

• de Veciana M, Major CA, Morgan MA, Asrat T, Toohey JS, Lien JM, Evans AT. Postprandial versus preprandial blood glucose monitoring in women with gestational diabetes mellitus requiring insulin therapy. N Engl J Med. 1995 Nov 9;333(19):1237-41. doi: 10.1056/NEJM199511093331901.

  PMID: 7565999 BACKGROUND

• Porter H, Lookinland S, Belfort MA. Evaluation of a new real-time blood continuous glucose monitoring system in pregnant women without gestational diabetes. A pilot study. J Perinat Neonatal Nurs. 2004 Apr-Jun;18(2):93-102. doi: 10.1097/00005237-200404000-00004.

  PMID: 15214248 BACKGROUND

• McLachlan K, Jenkins A, O'Neal D. The role of continuous glucose monitoring in clinical decision-making in diabetes in pregnancy. Aust N Z J Obstet Gynaecol. 2007 Jun;47(3):186-90. doi: 10.1111/j.1479-828X.2007.00716.x.

  PMID: 17550484 BACKGROUND

• Yu F, Lv L, Liang Z, Wang Y, Wen J, Lin X, Zhou Y, Mai C, Niu J. Continuous glucose monitoring effects on maternal glycemic control and pregnancy outcomes in patients with gestational diabetes mellitus: a prospective cohort study. J Clin Endocrinol Metab. 2014 Dec;99(12):4674-82. doi: 10.1210/jc.2013-4332.

  PMID: 25057872 BACKGROUND

• Alfadhli E, Osman E, Basri T. Use of a real time continuous glucose monitoring system as an educational tool for patients with gestational diabetes. Diabetol Metab Syndr. 2016 Jul 26;8:48. doi: 10.1186/s13098-016-0161-5. eCollection 2016.

  PMID: 27468313 BACKGROUND

• Glowinska-Olszewska B, Tobiaszewska M, Luczynski W, Bossowski A. Monthly use of a real-time continuous glucose monitoring system as an educational and motivational tool for poorly controlled type 1 diabetes adolescents. Adv Med Sci. 2013;58(2):344-52. doi: 10.2478/ams-2013-0024.

  PMID: 23917476 BACKGROUND

MeSH Terms

Conditions

Diabetes, Gestational

Interventions

Continuous Glucose Monitoring

Condition Hierarchy (Ancestors)

Pregnancy Complications; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Diabetes Mellitus; Glucose Metabolism Disorders; Metabolic Diseases; Nutritional and Metabolic Diseases; Endocrine System Diseases

Intervention Hierarchy (Ancestors)

Blood Chemical Analysis; Clinical Chemistry Tests; Clinical Laboratory Techniques; Diagnostic Techniques and Procedures; Diagnosis; Diagnostic Techniques, Endocrine; Monitoring, Physiologic; Investigative Techniques

Study Officials

• Malgorzata Mlynarczyk, MD, PhD

  Eastern Virginia Medical School

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Joanne Audouin, MS

CONTACT

757-446-5121; audouij@evms.edu

Andrew Lane, MD

CONTACT

864-608-4134; laneas@evms.edu

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: October 25, 2017
• First Posted: October 31, 2017
• Study Start: November 13, 2017
• Primary Completion: July 1, 2018
• Study Completion: July 1, 2018
• Last Updated: November 24, 2017

Record last verified: 2017-11

Data Sharing

• IPD Sharing: Will not share

Locations

US (1)