The Impact of Myo-Inositol on Glycemic Control and Oxidative Stress in Gestational Diabetes Mellitus
The Impact of Myo-Inositol Supplementation on Glycemic Control and Oxidative Stress in Women With Gestational Diabetes Mellitus: A Randomized, Open-Label Pilot Study
The purpose of this clinical study is to investigate the potential effects of myo-inositol supplementation on changes in glycemic control parameters, oxidative stress, inflammatory biomarkers, psychometric markers, and body composition in participants with gestational diabetes mellitus (GDM).
The study duration is 3 to 3.5 months, depending on the time of GDM diagnosis. Before the active phase begins, there is a 10-day observation period during which participants' blood glucose levels are monitored using a continuous glucose monitoring device. In the subsequent 12-14-week study phase, participants will receive a supplement based on random group assignment. They will be allocated either to an intervention group (myo-inositol + folic acid) or a control group (folic acid). Both supplements will be taken until delivery.
The intervention group supplement contains 4 g myo-inositol and 400 μg folic acid (BIOGENA GmbH, Salzburg) and is to be taken twice daily with water - three capsules per meal. The control group supplement contains only 400 μg folic acid (BIOGENA GmbH, Salzburg) and is also taken twice daily, one capsule per meal. As this is a pilot study, both participants and study personnel will be aware of group assignments.
Blood glucose measurements will be repeated mid-study (around the 33rd week of pregnancy) and at the end (37th week of pregnancy) using glucose sensors. To improve the evaluation of glucose measurements, participants will keep dietary logs during these periods.
Three study visits are planned, during which the following assessments will be conducted. To determine the primary outcome, "time in range (TIR)" (time spent within the target glucose range), three glucose sensor measurements will be performed. At each visit, blood samples will be taken to analyze glycemic control parameters (hemoglobin A1c (HbA1c), fasting glucose, fasting insulin, Homeostasis Model Assessment (HOMA-IR), insulin dosage), oxidative stress markers (total antioxidant capacity, malondialdehyde levels), and inflammatory markers (interleukin-6 (IL-6), C-reactive protein (CRP)). Anthropometric measurements (weight gain, blood pressure, pulse) and body composition (Bioelectrical Impedance Analysis) will also be performed.
Additionally, maternal and fetal birth outcomes will be recorded, including cesarean section rates, fetal gestational weight, preterm birth rates, and neonatal hypoglycemia occurrence. To assess participants' well-being and physical activity, questionnaires will be distributed at the beginning and end of the study.
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
研究の種類
研究の種類
入学 (推定)
入学
段階
段階
- 適用できない
連絡先と場所
研究連絡先
研究連絡先
- 名前:Michael Priv.Doz. Dr.med.univ. Leutner, PhD MSc
- 電話番号:+43 1 404 00-60950
- メール:Michael.Leutner@meduniwien.ac.at
研究連絡先のバックアップ
- 名前:Ricarda Rosalia Baron, MSc, Msc
- 電話番号:+43 1 404 00-20690
- メール:Ricarda.Baron@meduniwien.ac.at
研究場所
-
-
State of Vienna
-
Vienna、State of Vienna、オーストリア、1090
- 募集
- Medical University of Vienna
-
コンタクト:
- Michael Priv.Doz. Dr.med.univ. Leutner, PhD MSc
- 電話番号:+43 1 404 00-60950
- メール:Michael.Leutner@meduniwien.ac.at
-
副調査官:
- Ricarda Rosalia Baron, MSc, MSc
-
Vienna、State of Vienna、オーストリア、1090
- 募集
- Allgemeines Krankenhaus (AKH) Vienna, Medical University of Vienna
-
コンタクト:
- Ricarda Rosalia Baron Baron, MSc
- 電話番号:+ 43 40400 20690
- メール:Ricarda.Baron@meduniwien.ac.at
-
-
参加基準
適格基準
適格基準
就学可能な年齢
- 大人
健康ボランティアの受け入れ
説明
Inclusion Criteria:
- GDM diagnosis
- at least one of the HAPO-Study criteria: 2h-oGTT → >153 mg/dl, 1h-oGGT → >180 mg/dl, fasting plasma glucose > 92 mg/dl
- age between 18-45
- single pregnancy
Exclusion Criteria:
- T2DM
- T1DM
- Maturity Onset Diabetes of the Young (MODY)
- Latent Autoimmune Diabetes in Adults (LADA)
- pre pregnancy BMI >35
- oral antidiabetic drugs
- pre-existing renal disease
- heart disease and other chronic medical disorders
- allergies to any ingredients contained in the dietary supplements
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:支持療法
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:なし(オープンラベル)
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
|
実験的:1. Intervention group (nutrition therapy + myo-inositol + folic acid)
Women who maintain their blood glucose levels within the normal range through nutritional therapy and receive the investigational supplement myo-inositol plus folic acid.
|
This dietary supplement contains 2 g of myo-inositol and 200 µg folic acid per capsule.
It should be taken twice a day (à 3 capsules) with fluid intake and a meal.
Women with GDM who maintain their blood sugar levels with nutritional therapy.
|
|
実験的:2. Intervention group (insulin therapy + myo-inositol + folic acid)
Women who are already receiving insulin therapy to maintain their blood glucose levels within the normal range and receive the investigational supplement myo-inositol plus folic acid.
|
This dietary supplement contains 2 g of myo-inositol and 200 µg folic acid per capsule.
It should be taken twice a day (à 3 capsules) with fluid intake and a meal.
Women with GDM who maintain their blood glucose levels with insulin therapy.
|
|
アクティブコンパレータ:3. Control group (nutrition therapy + folic acid)
Women who maintain their blood glucose levels within the normal range through nutritional therapy and receive the supplement folic acid.
|
Women with GDM who maintain their blood sugar levels with nutritional therapy.
This dietary supplement contains 200 μg of folic acid per capsule and should also be taken twice a day (à 1 capsule) with adequate fluid intake and a main meal.
|
|
アクティブコンパレータ:4. Control group (inuslin therapy + folic acid)
Women who are already receiving insulin therapy to maintain their blood glucose levels within the normal range and receive the supplement folic acid.
|
Women with GDM who maintain their blood glucose levels with insulin therapy.
This dietary supplement contains 200 μg of folic acid per capsule and should also be taken twice a day (à 1 capsule) with adequate fluid intake and a main meal.
|
この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Time in Range
時間枠:10 days at baseline (24.-28. gestational week), 10 days into gestational week 33, 10 days into gestational week 36/37
|
Time in Range [%] measured with continous glucose monitoring
|
10 days at baseline (24.-28. gestational week), 10 days into gestational week 33, 10 days into gestational week 36/37
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Fasting glucose
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
fasting glucose [mg/dl] concentration
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Fasting insulin
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
fasting insulin [μIU/mL] concentration
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
HOMA-IR
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
HOMA-IR calculated as fasting insulin level (micro-units per milliliter) multiplied by the fasting blood glucose level (milligrams per deciliter), dividing the result by 405
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
HbA1c
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
HbA1c [%] concentration
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Insulin doses
時間枠:from day 1 until delivery
|
insulin units [IU]
|
from day 1 until delivery
|
|
Pre Pregnancy BMI
時間枠:before pregnancy
|
weight [kg]/height [m]^2
|
before pregnancy
|
|
Height in meters
時間枠:at baseline
|
height [m]
|
at baseline
|
|
Weight in kilograms
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
weight [kg]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Blood Pressure
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
blood pressure [mmHg]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
C-Section (maternal and fetal outcomes)
時間枠:at delivery
|
C-Section yes or no
|
at delivery
|
|
Hypoglycemia of the child (maternal and fetal outcomes)
時間枠:at delivery
|
glucose values of the child [mg/dl]
|
at delivery
|
|
Preterm birth (maternal and fetal outcomes)
時間枠:at delivery
|
delivery before 37. gestational week yes or no
|
at delivery
|
|
Gestational weight of the child (maternal and fetal outcomes)
時間枠:at delivery
|
gestational weight of the child [kg]
|
at delivery
|
|
Oxidative stress parameter
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
total antioxidative capacity [µmol/l]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Oxidative stress parameter
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
Malondialdehy status [µmol/l]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Inflammatory parameter
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
C-reactive protein [mg/dl]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Inflammatory parameter
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
interleucin-6 [pg/ml]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Psychometric parameter
時間枠:24.-28. gestational week, 37. gestational week
|
Questionnaire: Pregnancy-related Anxiety score
|
24.-28. gestational week, 37. gestational week
|
|
Psychometric parameter
時間枠:24.-28. gestational week, 37. gestational week
|
Questionnaire: Postnatal-Depression score
|
24.-28. gestational week, 37. gestational week
|
|
Psychometric parameter
時間枠:24.-28. gestational week, 37. gestational week
|
Questionnaire: Perceived Stress score
|
24.-28. gestational week, 37. gestational week
|
|
Physical Activity parameter
時間枠:24.-28. gestational week, 37. gestational week
|
Questionnaire: Physical Activity score [MET] - average daily energy expenditure by calculating the metabolic equivalents (METs) for each activity |
24.-28. gestational week, 37. gestational week
|
|
Nutritional log
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
Food diary for 10 days
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Bioelectrical Impedance Analysis (BIA)
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
fat mass [kg]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Bioelectrical Impedance Analysis (BIA)
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
total body water [%]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Bioelectrical Impedance Analysis (BIA)
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
muscle mass [kg]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Bioelectrical Impedance Analysis (BIA)
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
fat free mass [%]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Bioelectrical Impedance Analysis (BIA)
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
body cell mass [%]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
|
Bioelectrical Impedance Analysis (BIA)
時間枠:24.-28. gestational week, 33. gestational week, 37. gestational week
|
extracellular mass [%]
|
24.-28. gestational week, 33. gestational week, 37. gestational week
|
協力者と研究者
協力者
協力者
研究記録日
主要日程の研究
研究開始 (実際)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
その他の研究ID番号
- 2469/2024
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個々の参加者データ (IPD) を共有する予定はありますか?
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