title: Assessment of the effeCt of lIfestyle iNtervention plus water-soluble ciNnAMon extract On loweriNg blood glucose in pre-diabetics, a randomized, double-blind, multicenter, placebo controlled trial: study protocol for a randomized controlled trial.
abstract: BACKGROUND
  The World Health Organization predicts that by 2030 diabetes will be the seventh leading cause of death in the world. Multiple studies have tried to determine if cinnamon is an effective treatment for diabetes. Cinnamon extract is an insulin sensitizer, protects mesangial cells, decreases inflammatory markers, and lowers glucose, lipids, and blood pressure in patients with type 2 diabetes, so we developed a protocol to study whether ingestion of water-soluble cinnamon extract prevents progression from pre-diabetes to diabetes.
  
  
  METHODS
  This is a randomized, double-blind, placebo-controlled trial comparing cinnamon extract versus placebo in subjects with pre-diabetes who have committed to participate in a lifestyle change program. The trial will be conducted at five sites and will include 428 subjects who take cinnamon extract or placebo for 1 year. Follow-up for these subjects will be for a total of 2 years (nine study visits). The primary outcomes to be assessed are 1) conversion of patients from pre-diabetes to diabetes and 2) impact of water-soluble cinnamon extract on hepatic transaminases, renal function, and QT interval on electrocardiogram. Secondary outcomes include changes in HbA1c, lipids, waist circumference, weight, blood pressure, and fasting plasma glucose. The trial protocol has been approved by the Institutional Review Board of the US Air Force 59th Medical Wing, Wilford Hall Ambulatory Surgical Center (Protocol FWH20110035H). Investigator-sponsored Investigational New Drug status (114078) was granted by the US Food and Drug Administration.
  
  
  CONCLUSIONS
  This study will provide high-quality evidence of the efficacy of water-soluble cinnamon extract in conjunction with lifestyle intervention for preventing patients with pre-diabetes from converting to diabetes. Additionally, it will provide important safety information about water-soluble cinnamon extract.
  
  
  BACKGROUND
  ClinicalTrials.gov Identifier: NCT01301521 , 18 February 2011.
authors.affiliation: Nellis Family Medicine Residency, 4700 Las Vegas Blvd N, Las Vegas, NV, 89191, USA. paul.crawford@us.af.mil.
authors.forename: Paul
authors.initials: P
authors.lastname: Crawford
authors.affiliation: Eglin AFB Family Medicine Residency, 307 Boatner Rd, Suite 114, Eglin AFB, FL, 32542, USA. chuong.thai.2@us.af.mil.
authors.forename: Chuong
authors.initials: C
authors.lastname: Thai
authors.affiliation: Eglin AFB Family Medicine Residency, 307 Boatner Rd, Suite 114, Eglin AFB, FL, 32542, USA. j.obholz@gmail.com.
authors.forename: Joshua
authors.initials: J
authors.lastname: Obholz
authors.affiliation: Eglin AFB Family Medicine Residency, 307 Boatner Rd, Suite 114, Eglin AFB, FL, 32542, USA. jeffrey.schievenin.1.ctr@us.af.mil.
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Schievenin
authors.affiliation: Air Force Endocrinology Fellowship, Brooke Army Medical Center, 3551 Roger Brooke Dr, JBSA - Fort Sam Houston, TX, 78234, USA. mark.w.true.mil@mail.mil.
authors.forename: Mark
authors.initials: M
authors.lastname: True
authors.affiliation: Pharmacy Practice, University of the Pacific, Vacaville, CA, USA. sshah@pacific.edu.
authors.forename: Sachin A
authors.initials: SA
authors.lastname: Shah
authors.affiliation: 55MDOS, 2501 Capehart Road, Offutt AFB, NE, 68113, USA. john.hallgren@us.af.mil.
authors.forename: John
authors.initials: J
authors.lastname: Hallgren
authors.affiliation: Nellis Clinical Investigation Program, 4700 Las Vegas Blvd N, Las Vegas, NV, 89191, USA. jill.clark.3.ctr@us.af.mil.
authors.forename: Jill
authors.initials: J
authors.lastname: Clark
authors.affiliation: Adolos Strategic, San Antonio, TX, USA. adolos@sbcglobal.net.
authors.forename: Danny
authors.initials: D
authors.lastname: Sharon
mesh_terms: D001786:Blood Glucose / Q000032:analysis*; D002935:Cinnamomum zeylanicum; D002985:Clinical Protocols; D004311:Double-Blind Method; D006801:Humans; D008019:Life Style; D008517:Phytotherapy; D010936:Plant Extracts / Q000627:therapeutic use*; D011236:Prediabetic State / Q000097:blood / Q000188:drug therapy*; D018570:Risk Assessment; D018401:Sample Size
chemical_list: D001786:Blood Glucose; D010936:Plant Extracts