Effect of Artemisia Dracunculus on Glucose Intolerance, Insulin Sensitivity and Insulin Secretion

The term prediabetes has been used to encompass the first alterations on glucose metabolism such as impaired fasting glucose and glucose intolerance, and its early detection and treatment could prevent the appearance of diabetes mellitus type 2, a high prevalence disease worldwide.

Artemisia dracunculus, also known as estragon, has been used in Ayurvedic medicine for the treatment of diabetes.

Different in vitro and in vivo studies have shown that Artemisia dracunculus increases insulin signaling and improves insulin sensitivity.

The aim of this study is evaluate the effect of Artemisia dracunculus on glucose intolerance, insulin sensitivity and insulin secretion.

Study Overview

• Status: Completed
• Conditions: Glucose Intolerance
• Intervention / Treatment: Other: Placebo; Dietary supplement: Artemisia dracunculus

Detailed Description

A randomized, double-blind, placebo-controlled clinical trial will be carried out in 24 patients with diagnosis of glucose intolerance in accordance with the criteria of American Diabetes Association (ADA). Glucose, insulin levels, lipid profile, creatinine, uric acid, and transaminases will be evaluated. An oral glucose tolerance test with 75 g of dextrose will be held.

12 participants will receive Artemisia dracunculus, 1000 mg, twice per day (2000 mg) before breakfast and dinner during 3 months. And other 12 patients will receive placebo with the same prescription.

Area Under de Curve of glucose and insulin will be calculated as well as total insulin secretion (insulinogenic index), first-phase of insulin secretion (Stumvoll index) and insulin sensitivity (Matsuda index).

This protocol is approved by a local ethics committee and written informed consent will be obtained from all volunteers.

Results will be presented as mean and standard deviation. Intra an inter group differences will be tested using the Wilcoxon signed-ran and Mann Whitney U- test respectively; p<0.05 will be considered significant.

• Study Type: Interventional
• Enrollment (Actual): 24
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Mexico
  • Jalisco
    • Guadalajara, Jalisco, Mexico, 44140
      • Manuel González Ortiz

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 26 years to 56 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Inclusion Criteria:

• Patients both sexes
• Age between 30 and 60 years
• Glucose intolerance according ADA criteria (blood glucose leve ≥140 mg/dl and ≤199 mg/dL after an oral glucose tolerance test with 75 of oral glucose
• Informed consent signed

Exclusion Criteria:

• Women with confirmed or suspected pregnancy
• Women under lactation and/or puerperium
• Hypersensibility to Artemisia dracunculus
• Physical impossibility for taking pills
• Known uncontrolled renal, hepatic, heart or thyroid disease
• Previous treatment for glucose
• Diabetes diagnosis
• BMI ≥39.9 kg/m2

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Randomized
• Interventional Model: Parallel Assignment
• Masking: Double

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Artemisia Dracunculus; Artemisia Dracunculus extract, 2 capsules of 500 mg, two times per day before breakfast and dinner during 90 days	Dietary supplement: Artemisia dracunculus; Other Names: estragon, tarragon
Placebo Comparator: Placebo; Calcined magnesia, 2 capsules of 500 mg, two times per day before breakfast and dinner during 90 days	Other: Placebo; Other Names: calcined magnesia

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Postprandial Glucose Levels at Week 12	Postprandial glucose will be evaluated at baseline and week 12 after a oral glucose tolerance test with enzymatic-colorimetric techniques	Week 12
Fasting Glucose Levels at Week 12	Fasting glucose will be evaluated at baseline and week 12 with enzymatic-colorimetric techniques	Week 12
Glycosylated Hemoglobin at Week 12	Glycosylated hemoglobin will be evaluated at baseline and week 12 by ELISA	Week 12
First Phase of Insulin Secretion at Week 12	The first phase of insulin secretion will be calculated at baseline and week 12 with Stumvoll index. Human studies support the critical physiologic role of the first-phase of insulin secretion in the maintenance of postmeal glucose homeostasis. First phase of insulin secretion was estimated using the Stumvoll index (1283+ 1.829 x insulin 30' - 138.7 x glucose 30' + 3.772 x insulin 0'), the entered values reflect the first phase of insulin secretion	Week 12
Total Insulin Secretion at Week 12	Total insulin secretion will be calculated at baseline and week 12 with insulinogenic index. The insulinogenic index is a ratio that relates enhancement of circulating insulin to the magnitude of the corresponding glycemic stimulus. Total insulin secretion was calculated with the insulinogenic index (ΔABC insulin/ΔABC glucose), the entered values reflect the total insulin secretion	Week 12
Insulin Sensitivity at Week 12	Insulin sensitivity will be calculated at baseline and week 12 with Matsuda index. Matsuda Index value is used to indicate insulin resistance on diabetes. Insulin sensitivity was calculated with Matsuda index [10,000 / √glucose 0' x insulin 0') (mean glucose oral glucose tolerance test (OGTT) x mean insulin OGTT)]. The entered values reflect the insulin sensitivity	Week 12

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Weight at Week 12	The weight will be measured at baseline and week 12 with a bioimpedance balance	Week 12
Body Mass Index at Week 12	Body Mass Index will be calculated at baseline and week 12 with the Quetelet index formula	Week 12
Total Cholesterol at Week 12	Total cholesterol levels will be evaluated at baseline and week 12 by enzymatic-colorimetric techniques	Week 12
Triglycerides Levels at Week 12	Triglycerides levels will be evaluated at baseline and week 12 with enzymatic-colorimetric techniques	Week 12
High Density Lipoprotein (c-HDL) Levels at Week 12	c-HDL levels will be evaluated at baseline and week 12 with enzymatic-colorimetric techniques	Week 12
Alanine Aminotransferase (ALT) Levels at Week 12	ALT levels will be evaluated at baseline and week 12 with enzymatic-colorimetric techniques	Week 12
Aspartate Aminotransferase (AST) Levels at Week 12	AST levels will be evaluated at baseline and week 12 with enzymatic-colorimetric techniques	Week 12
Creatinine Levels at Week 12	Creatinine levels will be evaluated at baseline and week 12 with enzymatic-colorimetric techniques	Week 12
Uric Acid Levels at Week 12	Uric acid levels will be evaluated at baseline and week 12 with enzymatic-colorimetric techniques	Week 12
Systolic Blood Pressure at Week 12	Systolic blood pressure will be measured at baseline and week 12 with a digital sphygmomanometer	Week 12
Diastolic Blood Pressure at Week 12.	Diastolic blood pressure will be measured at baseline and week 12 with a digital sphygmomanometer	Week 12

Collaborators and Investigators

• Sponsor: University of Guadalajara
• Investigators: Principal Investigator: MANUEL GONZALEZ, PhD, University of Guadalajara

Study record dates

Study Major Dates

• Study Start (Actual): December 1, 2014
• Primary Completion (Actual): June 1, 2015
• Study Completion (Actual): July 1, 2015

Study Registration Dates

• First Submitted: December 30, 2014
• First Submitted That Met QC Criteria: December 30, 2014
• First Posted (Estimate): January 1, 2015

Study Record Updates

• Last Update Posted (Actual): October 8, 2020
• Last Update Submitted That Met QC Criteria: September 11, 2020
• Last Verified: September 1, 2020

More Information

Terms related to this study

• Keywords: Insulin; Glucose Intolerance; Artemisia dracunculus
• Additional Relevant MeSH Terms: Glucose Metabolism Disorders; Metabolic Diseases; Hyperinsulinism; Hyperglycemia; Glucose Intolerance; Insulin Resistance
• Other Study ID Numbers: GI-ESTRAGON

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No