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Does Dapagliflozin Augment The Favorable Adaptation To Endurance Exercise Training?

19 marzo 2019 aggiornato da: Christopher Bell
Exercise is frequently prescribed as a favorable lifestyle intervention to prevent/reverse type 2 diabetes. It is also prescribed in addition to concurrent pharmacological treatment, such as metformin. Recent data (animal and human) suggest that metformin may attenuate the favorable benefits of exercise training. In light of the physiological mechanism of Dapagliflozin (sodium-glucose co-transporter 2 (SGLT2) inhibition), one might speculate that rather than inhibit, it will augment the favorable adaptations to exercise training.

Panoramica dello studio

Stato

Completato

Condizioni

Descrizione dettagliata

This is a randomized, placebo-controlled, double blind, repeated measures study. 30 sedentary adults will be recruited for participation and randomly assigned to one of two 12-week treatments: 1) supervised endurance exercise training 4 days per week plus daily oral administration of Dapagliflozin; 2) supervised endurance exercise training 4 days per week plus daily oral administration of placebo. Prior to and following completion of the treatment the following dependent variables will be quantified: a) maximal aerobic capacity; b) substrate utilization during standardized low-moderate intensity exercise; c) skeletal muscle aerobic enzyme activity; d) body composition; and, e) oral glucose tolerance, fasting glucose and insulin resistance.

The dose of Dapagliflozin will begin as 5 mg/day for the first 14-days. In the absence of complications, side effects, or unfavorable reactions, the dose will then increase to 10 mg/day for the remainder of the study.

Tipo di studio

Interventistico

Iscrizione (Effettivo)

37

Fase

  • Fase 2

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Luoghi di studio

    • Colorado
      • Fort Collins, Colorado, Stati Uniti, 80523-1582
        • Colorado State University, Dept. of Health and Exercise Science

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

Da 18 anni a 50 anni (Adulto)

Accetta volontari sani

Sessi ammissibili allo studio

Tutto

Descrizione

Inclusion Criteria:

  1. Provision of informed consent prior to any study specific procedures.
  2. No known Type 2 Diabetes.
  3. Body mass index 25-45 kg/m^2
  4. Sedentary (maximum of 2/week regularly scheduled activity sessions of < 20 minutes during the previous 2 years).
  5. Completion of a screening visit consisting of medical history, physical examination, and 12-lead electrocardiogram and blood pressure assessment at rest and during incremental exercise to volitional exhaustion (Note: Subjects with abnormal screening values may be eligible if the results are not clinically significant, as judged by the investigator or medical monitor).
  6. Agree to abide by the study schedule and to return for the required assessments.
  7. Be willing and able to repeatedly perform exercise.
  8. Women of childbearing potential must have negative pregnancy test and be using acceptable contraception.

Exclusion Criteria:

Subjects should not enter the study if any of the following exclusion criteria are fulfilled:

  1. Evidence of clinically significant cardiovascular, respiratory, renal, hepatic, pulmonary, gastrointestinal, hematological, neurological, psychiatric, or other disease that may interfere with the objectives of the study or the safety of the subject, as judged by the investigator in agreement with the sponsor or medical monitor, have been hospitalized in the past 2 years as a result of these conditions, or are receiving pharmacological treatment for these conditions.
  2. Use of prescription drugs (see exceptions listed below) or herbal preparations in the 4 weeks before study commencement.

    Permitted Prescription Drugs

    • Birth Control
    • Less than 7 days, short course antibiotics. Note: Rifampin is not permitted.
    • Other medicines, for gastroesophageal reflux disease (GERD), depression, seasonal allergies and over-the-counter analgesics, may be allowed, but will be approved on a case-by-case basis.
  3. Is currently enrolled in another clinical study for another investigational drug or has taken any other investigational drug within 30 days before the screening visit.
  4. Habitual and/or recent use (within 2 years) of tobacco.
  5. Being considered unsuitable for participation in this trial for any reason, as judged by the investigator or medical monitor.
  6. History of serious hypersensitivity reaction to Dapagliflozin.
  7. Severe renal impairment, end-stage renal disease, or dialysis.
  8. Pregnant or breastfeeding patients.
  9. Severe hepatic insufficiency and/or significant abnormal liver function defined as aspartate aminotransferase (AST) >3x upper limit of normal and/or alanine aminotransferase (ALT) >3x upper limit of normal.
  10. Total bilirubin >2.0 mg/dL (34.2 umol/L).
  11. Positive serologic evidence of current infectious liver disease including Hepatitis B viral antibody Immunoglobulin M, Hepatitis B surface antigen and Hepatitis C virus antibody.
  12. Estimated Glomerular Filtration Rate <60 mL/min/1.73 m^2 (calculated by Cockcroft-Gault formula).
  13. History of bladder cancer.
  14. Recent cardiovascular events in a patient, including any of the following: acute coronary syndrome within 2 months prior to enrollment; hospitalization for unstable angina or acute myocardial infarction within 2 months prior to enrolment; acute stroke or trans-ischemic attack within two months prior to enrollment; less than two months post coronary artery re-vascularization; congestive heart failure defined as New York Heart Association class IV, unstable or acute congestive heart failure. Note: eligible patients with congestive heart failure,especially those who are on diuretic therapy, should have careful monitoring of their volume status throughout the study.
  15. Blood pressure at enrollment: Systolic blood pressure ≥165 mmHg and/or diastolic blood pressure ≥100 mmHg.
  16. Blood pressure at randomization: Systolic blood pressure ≥165 mmHg and/or diastolic blood pressure ≥100 mmHg
  17. Patients who, in the judgment of the medical monitor, may be at risk for dehydration.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Scienza basilare
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Triplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Dapagliflozin
The dose of Dapagliflozin will begin as one 5 mg tablet per day for the first 14-days. In the absence of complications, side effects, or unfavorable reactions, the dose will then increase to two 5 mg tablets per day for the remainder of the study.
Dapagliflozin tablets, 5 mg, one per day for the first 14 days, increase to two per day for 70 days.
Altri nomi:
  • Farxiga
Comparatore placebo: Placebo
Matching placebo for Dapagliflozin 5 mg will begin as one tablet per day for the first 14-days. In the absence of complications, side effects, or unfavorable reactions, the dose will then increase to two tablets for the remainder of the study.
Matching placebo for Dapagliflozin 5 mg, one per day for the first 14 days, increase to two per day for 70 days.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change From Baseline of Maximal Oxygen Uptake at Week 12
Lasso di tempo: Baseline,12 weeks
Indirect calorimetry
Baseline,12 weeks
Change From Baseline of Respiratory Exchange Ratio at Week 12
Lasso di tempo: Baseline, 12 weeks
The respiratory exchange ratio (RER) is the ratio between the amount of carbon dioxide (CO2) produced in metabolism and oxygen (O2) used during standardized exercise.
Baseline, 12 weeks
Change From Baseline of Maximal Aerobic Enzyme Activities in Skeletal Muscle at Week 12
Lasso di tempo: Baseline, 12 weeks
Maximal citrate synthase activity in skeletal muscle sample
Baseline, 12 weeks
Change From Baseline of Insulin Sensitivity at Week 12
Lasso di tempo: Baseline, 12 weeks
Insulin Sensitivity was estimated by measuring circulating glucose and insulin concentrations after a 12-hour fast and after ingestion of 75 g of glucose. Glucose was measured 5, 10, 15, 20, 30, 45, 60, 75, 90, 105 and 120 minutes after glucose ingestion. Insulin was measured 15, 30, 45, 60, 90 and 120 minutes after glucose ingestion. Insulin sensitivity was estimated using the Matsuda Index, represented by the formula: Matsuda index = 10,000/SQRT [fasting glucose*fasting insulin* (mean glucose from time 5, 10, 15, 20, 30, 45, 60, 75, 90, 105 and 120 minutes) * (mean insulin from time 15, 30, 45, 60, 90 and 120 minutes)], with higher numbers indicating better insulin sensitivity.
Baseline, 12 weeks
Change From Baseline of Fat Free Mass at Week 12
Lasso di tempo: Baseline, 12 weeks
Via dual energy X-ray absorptiometry
Baseline, 12 weeks

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Collaboratori

Pubblicazioni e link utili

La persona responsabile dell'inserimento delle informazioni sullo studio fornisce volontariamente queste pubblicazioni. Questi possono riguardare qualsiasi cosa relativa allo studio.

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

1 giugno 2015

Completamento primario (Effettivo)

1 gennaio 2018

Completamento dello studio (Effettivo)

1 gennaio 2018

Date di iscrizione allo studio

Primo inviato

13 febbraio 2015

Primo inviato che soddisfa i criteri di controllo qualità

19 febbraio 2015

Primo Inserito (Stima)

25 febbraio 2015

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

10 aprile 2019

Ultimo aggiornamento inviato che soddisfa i criteri QC

19 marzo 2019

Ultimo verificato

1 marzo 2019

Maggiori informazioni

Termini relativi a questo studio

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

NO

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

Prove cliniche su Dapagliflozin

3
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