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糖尿病患者の皮膚潰瘍の創傷治癒に対する個別栄養介入の評価

糖尿病患者の皮膚潰瘍の再生能力と創傷治癒に対する MSC 由来のエキソソームの適用と合わせた個別化された栄養介入の評価

The ageing population and the increase in diabetes raise the prevalence of chronic skin ulcers (CCU). In diabetics, precursor cell mobilization decreases. In wounds, the inflammation is prolonged and oxidative stress increases. This is an unfavorable microenvironment for healing. A major risk factor in the development of CCU is nutritional deficiency. Healing needs energy and nutrients for regeneration. In diabetics the malnutrition can be more than 60%. However, although the provision of certain nutrients can improve the healing capacity, it is not a common clinical practice to nutritionally evaluate diabetic with CCU. Exosomes are extracellular vesicles that reflect the physiological state of the cells producing them. Stem cell derivatives exosomes are rich in factors, that can provide a favorable microenvironment for tissue regeneration.

The aim of this project is to develop a therapeutic process to accelerate the healing of diabetic CCU, based on the correction of nutritional deficiencies, to improve the regenerative capacity, together with the application of exosomes from mesenchymal stem-cell (MSC) in the wound, creating a microenvironment that favors tissue regeneration. For this, a pilot clinical trial with diabetic patients with CCU is proposed, to evaluate the effect of personalized nutritional supplementation on healing and regenerative capacity.

調査の概要

状態

積極的、募集していない

研究の種類

介入

入学 (推定)

30

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • Andalusia
      • Córdoba、Andalusia、スペイン、14004
        • Hospital Universitario Reina Sofía de Córdoba

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

50年~80年 (大人、高齢者)

健康ボランティアの受け入れ

いいえ

受講資格のある性別

全て

説明

Inclusion Criteria:

  • Signature of the informed consent
  • Age between 50 and 80 years
  • Diagnosis of Diabetes Mellitus for more than 1 year
  • Documented diagnosis of peripheral artery disease
  • HbA1c < 9%
  • Category 5 in the Rutherford-Becker classification

Exclusion Criteria:

  • Poor cognitive function, dementia or psychiatric conditions
  • Osteomyelitis, gangrene, malignancy or immunocompromised disease
  • Thromboangiitis obliterans or Buerger's disease
  • Clinical evidence of invasive infection in the target limb requiring IV antibiotherapy
  • Presence of neuropathic ulcers only
  • Human immunodeficiency virus (HIV), hepatitis C virus (HCV) or hepatitis B virus (HBV) positive.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

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:処理
  • 割り当て:ランダム化
  • 介入モデル:階乗代入
  • マスキング:トリプル

武器と介入

参加者グループ / アーム
介入・治療
実験的:Nutritional Intervention (NI)

In addition to the usual treatment, will receive dietary advice and a nutritional supplement, according to the results of their evaluation in the Endocrinology Service

Those with malnutrition criteria will also receive a nutritional supplement (e.g. fortimel cubitan, advanced or extra, Nutricia) or another of similar composition, in case of intolerance to the first option. The aim will be to provide at least 50% of the recommended intakes for the main nutrients related to wound healing.

介入なし:Control (C)

Who will continue with their usual treatments in the Diabetic Foot Unit and they will receive dietary advice

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Ulcer evaluation
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in size ulcer assessed by picture, including ruler to measure their size

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

二次結果の測定

結果測定
メジャーの説明
時間枠
Composite measure of markers of nutritional status
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in nutritional status assessed from blood samples

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Composite measure of haemogram
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in haemogram assessed from blood samples

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Hemoglobin A1c (HbA1c) Test for Diabetes
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in HbA1c (%) assessed from blood samples

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Measure of markers of nutritional status, include to thyrotropin
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in thyrotropin (mlU/L) assessed from blood samples

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Ultrasensitive C-reactive Protein (CRP) test
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in CRP (mg/L) assessed from blood samples

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Quantification of circulating endothelial progenitor cells (EPC)
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in total CD34+ or CD133+ cells expressing vascular endothelial growth factor receptor 2 (VEGFR2) analyzed by flow cytometry

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Concentration of stromal cell-derived factor 1 (SDF-1) and vascular endothelial growth factor A (VEGFA)
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in concentration of SDF-1 and VEGFA factors in serum by ELISA

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

その他の成果指標

結果測定
メジャーの説明
時間枠
Nutritional Risk
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in nutritional risk assessed by Malnutrition Universal Screening Tool (MUST)

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Diagnosis of malnutrition
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in diagnosis of malnutrition assessed by Global Leadership Initiative on malnutrition (GLIM criteria)

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Sarcopenia
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in sarcopenia assessed by SARC-F

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Handgrip Strength
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in handgrip strength assessed by dynamometry

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Body weight and height
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Body weight and height will be combined to report body mass index (BMI) in kg/m^2. Change from baseline in BMI

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Tricipital skinfold
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in tricipital skinfold using a skinfold caliper

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Arm circumference
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in arm circumference in centimeters (cm)

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Waist and hip circumferences
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

waist and hip circumferences (cm) will be combined to report Waist and Hip Ratio (WHR). Change from baseline in WHR

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Body Fat
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in body fat assessed by multifrequency bioimpedaciometry and bioelectrical impedance vector analysis

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Muscle Mass
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in muscle mass assessed by multifrequency bioimpedaciometry and bioelectrical impedance vector analysis

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation
Hydration status
時間枠:Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

Change from baseline in hydration status assessed by multifrequency bioimpedaciometry and bioelectrical impedance vector analysis

Baseline, 30 days after treatment initiation, 60 days after treatment initiation and 90 days after treatment initiation

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

捜査官

  • 主任研究者:Antonio Casado-Díaz, PhD、Maimonides Biomedical Research Institute of Cordoba
  • 主任研究者:Alfonso Calañas, PhD、Hospital General Universitario Reina Sofía de Murcia

出版物と役立つリンク

研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。

一般刊行物

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2023年10月20日

一次修了 (推定)

2026年12月30日

研究の完了 (推定)

2026年12月31日

試験登録日

最初に提出

2022年1月20日

QC基準を満たした最初の提出物

2022年2月14日

最初の投稿 (実際)

2022年2月17日

学習記録の更新

投稿された最後の更新 (実際)

2026年11月5日

QC基準を満たした最後の更新が送信されました

2026年11月3日

最終確認日

2026年11月1日

詳しくは

本研究に関する用語

医薬品およびデバイス情報、研究文書

米国FDA規制医薬品の研究

いいえ

米国FDA規制機器製品の研究

いいえ

この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。

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