- ICH GCP
- Yhdysvaltain kliinisten tutkimusten rekisteri
- Kliininen tutkimus NCT05651620
CALERIE™ Legacy -tutkimus
CALERIE™:n, 2 vuoden kalorirajoitustoimenpiteen, perinteiset vaikutukset terveyden ja ikääntymisen tunnusmerkkeihin
Tutkimuksen yleiskatsaus
Tila
Ehdot
Yksityiskohtainen kuvaus
Opintotyyppi
Ilmoittautuminen (Arvioitu)
Yhteystiedot ja paikat
Opiskelupaikat
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Louisiana
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Baton Rouge, Louisiana, Yhdysvallat, 70808
- Pennington Biomedical Research Center
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Massachusetts
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Boston, Massachusetts, Yhdysvallat, 02111
- Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University
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Missouri
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St Louis, Missouri, Yhdysvallat, 63110-1010
- Washington University School of Medicine
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Osallistumiskriteerit
Kelpoisuusvaatimukset
Opintokelpoiset iät
Hyväksyy terveitä vapaaehtoisia
Näytteenottomenetelmä
Tutkimusväestö
Kuvaus
Sisällyttämiskriteerit:
- Ilmoittautui CALERIE-kokeeseen ja aloitti heille osoitetun ryhmän (CR-interventio tai ad libitum -kontrollitila)
- Halukas ja kykenevä osallistumaan johonkin kliinisistä paikoista henkilökohtaiseen käyntiin ja antamaan tietoinen suostumus
Poissulkemiskriteerit:
- Raskaana olevat naiset
- Naiset alle 12 kuukautta synnytyksen jälkeen
- Dokumentoitu muistiinpano CALERIE-tutkimuksesta, joka osoittaa, että koehenkilöön ei pidä ottaa yhteyttä tai pyytää, että häneen ei oteta yhteyttä tulevaa tutkimusta varten
- Diagnosoitu aktiivinen syöpä tai terminaalinen sairaus
Opintosuunnitelma
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
- Havaintomallit: Case-Control
- Aikanäkymät: Muut
Kohortit ja interventiot
Ryhmä/Kohortti |
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Kalorirajoitus (CR)
CR-ryhmän henkilöille määrättiin 25 %:n vähennys lähtötason energiansaannista kahden vuoden CALERIE-tutkimuksen aikana.
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Ad Libitum (AL)
AL-ryhmän henkilöitä pyydettiin jatkamaan tavallista ravinnonsaantiaan kahden vuoden CALERIE-tutkimuksen aikana.
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Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Biological age - Klemera-Doubal Method
Aikaikkuna: 11-16 years post CALERIE trial
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Biological age will be quantified by the Klemera-Doubal Method (KDM), an algorithm-based measure.
Biological age is expressed in years.
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11-16 years post CALERIE trial
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Healthspan
Aikaikkuna: 11-16 years post CALERIE trial
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Healthspan will be assessed by sex-specific metabolic syndrome z-score (MS z-score). MS z-score was developed using high density lipoprotein cholesterol (HDL), triglycerides (TG), waist circumference (WC), fasting blood glucose (FBG), and mean arterial pressure (MAP = [systolic blood pressure + 2 x diastolic blood pressure]/3). SDs for HDL and WC in the equations are sex specific. Women: MS z-score = [45-HDL]/SDHDLW+ [TG-150]/SDTG + [WC-88]/SDWCW + [FBG-100]/SDFBG + [MAP -100]/SDMAP Men: MS z-score = [40-HDL]/SDHDLM+ [TG-150]/SDTG + [WC-102]/SDWCM + [FBG-100]/SDFBG + [MAP -100]/SDMAP W = women M = men This score does not have a unit. |
11-16 years post CALERIE trial
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Toissijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
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Biological age - Homeostatic Dysregulation
Aikaikkuna: 11-16 years post CALERIE trial
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Biological age will be quantified by homeostatic dysregulation, an algorithm-based measure.
Biological age is expressed in years.
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11-16 years post CALERIE trial
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Biological age - Levine Phenotypic Age
Aikaikkuna: 11-16 years post CALERIE trial
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Biological age will be quantified by Levine Phenotypic Age, an algorithm-based measure.
Biological age is expressed in years.
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11-16 years post CALERIE trial
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Height
Aikaikkuna: 11-16 years post CALERIE trial
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Height will be measured in cm.
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11-16 years post CALERIE trial
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Weight
Aikaikkuna: 11-16 years post CALERIE trial
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Weight will be measured in kg.
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11-16 years post CALERIE trial
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Waist circumference
Aikaikkuna: 11-16 years post CALERIE trial
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Weight circumference will be measured in cm.
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11-16 years post CALERIE trial
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Hip circumference
Aikaikkuna: 11-16 years post CALERIE trial
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Hip circumference will be measured in cm.
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11-16 years post CALERIE trial
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Body mass index (BMI)
Aikaikkuna: 11-16 years post CALERIE trial
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BMI (kg/m2) will be calculated using height and weight measurements.
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11-16 years post CALERIE trial
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Blood pressure
Aikaikkuna: 11-16 years post CALERIE trial
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Systolic and diastolic blood pressure will be measured in mmHg.
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11-16 years post CALERIE trial
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Pulse rate at rest
Aikaikkuna: 11-16 years post CALERIE trial
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Pulse rate will be measured in beats/min.
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11-16 years post CALERIE trial
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Respiration rate at rest
Aikaikkuna: 11-16 years post CALERIE trial
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Respiration rate will be measured in breaths/min.
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11-16 years post CALERIE trial
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Fat mass
Aikaikkuna: 11-16 years post CALERIE trial
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Whole-body fat mass (kg, %) as measured by dual-energy X-ray absorptiometry.
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11-16 years post CALERIE trial
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Fat-free mass
Aikaikkuna: 11-16 years post CALERIE trial
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Whole-body fat-free mass (kg, %) as measured by dual-energy X-ray absorptiometry.
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11-16 years post CALERIE trial
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Bone mineral content
Aikaikkuna: 11-16 years post CALERIE trial
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Whole-body bone mineral content (g) as measured by dual-energy X-ray absorptiometry.
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11-16 years post CALERIE trial
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Resting metabolic rate (RMR)
Aikaikkuna: 11-16 years post CALERIE trial
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RMR will be measured in kcal/d by indirect calorimetry using a ventilated hood system.
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11-16 years post CALERIE trial
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Respiratory quotient (RQ)
Aikaikkuna: 11-16 years post CALERIE trial
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RQ will be measured by indirect calorimetry using a ventilated hood system.
This is a ratio (V̇CO2/V̇O2) and does not have a unit.
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11-16 years post CALERIE trial
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Maximal aerobic capacity (V̇O2max)
Aikaikkuna: 11-16 years post CALERIE trial
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Maximal aerobic capacity (V̇O2max) will be measured in mL/kg/min using the Cornell incremental treadmill test.
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11-16 years post CALERIE trial
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Interleukin-6 (IL-6)
Aikaikkuna: 11-16 years post CALERIE trial
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IL-6, a blood-based biomarker of aging proposed by the Targeting Aging with MEtformin (TAME) Biomarkers Workgroup, will be measured in pg/mL.
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11-16 years post CALERIE trial
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Insulin - TAME panel
Aikaikkuna: 11-16 years post CALERIE trial
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Insulin, a blood-based biomarker of aging proposed by the TAME Biomarkers Workgroup, will be measured in μIU/mL.
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11-16 years post CALERIE trial
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Insulin - 0 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
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Insulin (μIU/mL) will be measured at 0 minutes (pre-dose) during an oral glucose tolerance test (OGTT) to evaluate glucoregulatory response.
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11-16 years post CALERIE trial
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Insulin - 30 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
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Insulin (μIU/mL) will be measured at 30 minutes post dose during an OGTT to evaluate glucoregulatory response.
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11-16 years post CALERIE trial
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Insulin - 60 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
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Insulin (μIU/mL) will be measured at 60 minutes post dose during an OGTT to evaluate glucoregulatory response.
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11-16 years post CALERIE trial
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Insulin - 90 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
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Insulin (μIU/mL) will be measured at 90 minutes post dose during an OGTT to evaluate glucoregulatory response.
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11-16 years post CALERIE trial
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Insulin - 120 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
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Insulin (μIU/mL) will be measured at 120 minutes post dose during an OGTT to evaluate glucoregulatory response.
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11-16 years post CALERIE trial
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Insulin-like growth factor 1 (IGF-1)
Aikaikkuna: 11-16 years post CALERIE trial
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IGF-1, a blood-based biomarker of aging proposed by the TAME Biomarkers Workgroup, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Hemoglobin A1c (HbA1c)
Aikaikkuna: 11-16 years post CALERIE trial
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HbA1c, a blood-based biomarker of aging proposed by the TAME Biomarkers Workgroup, will be measured in mmol/mol.
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11-16 years post CALERIE trial
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Tumor necrosis factor α receptor II (TNFRII)
Aikaikkuna: 11-16 years post CALERIE trial
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TNFRII, a blood-based biomarker of aging proposed by the TAME Biomarkers Workgroup, will be measured in ng/mL.
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11-16 years post CALERIE trial
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High-sensitivity C-reactive protein (hsCRP)
Aikaikkuna: 11-16 years post CALERIE trial
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hsCRP, a blood-based biomarker of inflammation, will be measured in μg/mL.
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11-16 years post CALERIE trial
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Growth/differentiation factor 15 (GDF15)
Aikaikkuna: 11-16 years post CALERIE trial
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GDF15, a blood-based biomarker of aging proposed by the TAME Biomarkers Workgroup, will be measured in pg/mL.
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11-16 years post CALERIE trial
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Cystatin C
Aikaikkuna: 11-16 years post CALERIE trial
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Cystatin C, a blood-based biomarker of aging proposed by the TAME Biomarkers Workgroup, will be measured in mg/L.
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11-16 years post CALERIE trial
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N-terminal B-type natriuretic peptide (NT-proBNP)
Aikaikkuna: 11-16 years post CALERIE trial
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NT-proBNP, a blood-based biomarker of aging proposed by the TAME Biomarkers Workgroup, will be measured in pg/mL.
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11-16 years post CALERIE trial
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Senescence-associated secretory phenotype (SASP) proteins
Aikaikkuna: 11-16 years post CALERIE trial
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SASP proteins, blood-based biomarkers of cellular senescence, will be measured using a SASP panel.
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11-16 years post CALERIE trial
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Urinary Isoprostanes - iPF(2α)-III
Aikaikkuna: 11-16 years post CALERIE trial
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Urinary iPF(2α)-III, a biomarker of systemic oxidative stress, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Urinary Isoprostanes - 2,3-dinor-iPF(2α)-III
Aikaikkuna: 11-16 years post CALERIE trial
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Urinary 2,3-dinor-iPF(2α)-III, a biomarker of systemic oxidative stress, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Urinary Isoprostanes - iPF(2α)-VI
Aikaikkuna: 11-16 years post CALERIE trial
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Urinary iPF(2α)-VI, a biomarker of systemic oxidative stress, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Urinary Isoprostanes - 8,12-iso-iPF(2α)-VI
Aikaikkuna: 11-16 years post CALERIE trial
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Urinary 8,12-iso-iPF(2α)-VI, a biomarker of systemic oxidative stress, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Creatinine
Aikaikkuna: 11-16 years post CALERIE trial
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Creatinine, a byproduct of routine activity in the muscle, will be measured in urine in mg/mL.
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11-16 years post CALERIE trial
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Dehydroepiandrosterone (DHEA)
Aikaikkuna: 11-16 years post CALERIE trial
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DHEA, a blood-based steroid hormone, will be measured in μg/dL.
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11-16 years post CALERIE trial
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Interleukin 1 beta (IL-1b)
Aikaikkuna: 11-16 years post CALERIE trial
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IL-1b, a blood-based marker of inflammation, will be measured in pg/mL.
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11-16 years post CALERIE trial
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Interleukin 8 (IL-8)
Aikaikkuna: 11-16 years post CALERIE trial
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IL-8, a blood-based marker of inflammation, will be measured in pg/mL.
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11-16 years post CALERIE trial
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Tumor necrosis factor α (TNF-α)
Aikaikkuna: 11-16 years post CALERIE trial
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TNF-α, a blood-based marker of inflammation, will be measured in pg/mL.
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11-16 years post CALERIE trial
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Insulin-like growth factor-binding protein 1 (IGFBP-1)
Aikaikkuna: 11-16 years post CALERIE trial
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IGFBP-1, a blood-based transport protein, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Transforming growth factor beta 1 (TGFB1)
Aikaikkuna: 11-16 years post CALERIE trial
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TGFB1, a blood-based marker of immune function, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Insulin-like growth factor-binding protein 3 (IGFBP-3)
Aikaikkuna: 11-16 years post CALERIE trial
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IGFBP-3, a blood-based transport protein, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Platelet-derived growth factor-AB (PDGF-AB)
Aikaikkuna: 11-16 years post CALERIE trial
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PDGF-AB, a blood-based marker of cellular function, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Intercellular Adhesion Molecule 1 (ICAM-1)
Aikaikkuna: 11-16 years post CALERIE trial
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ICAM-1, a blood-based marker of inflammation, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Growth hormone
Aikaikkuna: 11-16 years post CALERIE trial
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Growth hormone, a blood-based bio-marker of cellular function, will be measured in ng/mL.
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11-16 years post CALERIE trial
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Monocyte Chemoattractant Protein 1 (MCP1)
Aikaikkuna: 11-16 years post CALERIE trial
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MCP1, a blood-based marker of inflammation, will be measured in pg/mL.
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11-16 years post CALERIE trial
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Leptin
Aikaikkuna: 11-16 years post CALERIE trial
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Leptin, a hormonal regulator of energy balance, will be measured in pg/mL.
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11-16 years post CALERIE trial
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Total adiponectin
Aikaikkuna: 11-16 years post CALERIE trial
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Total adiponectin, a protein hormone that regulates several metabolic processes, including glucose regulation and fatty acid oxidation, will be measured in μg/mL.
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11-16 years post CALERIE trial
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High molecular weight adiponectin
Aikaikkuna: 11-16 years post CALERIE trial
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High molecular weight adiponectin, a protein hormone that regulates several metabolic processes, including glucose regulation and fatty acid oxidation, will be measured in μg/mL.
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11-16 years post CALERIE trial
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Muscle strength - Knee extension (60°)
Aikaikkuna: 11-16 years post CALERIE trial
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Knee extension at 60 degrees per second will be measured by isokinetic dynamometry and expressed in Nm.
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11-16 years post CALERIE trial
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Muscle strength - Knee extension (180°)
Aikaikkuna: 11-16 years post CALERIE trial
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Knee extension at 180 degrees per second will be measured by isokinetic dynamometry and expressed in Nm.
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11-16 years post CALERIE trial
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Muscle strength - Knee flexion (60°)
Aikaikkuna: 11-16 years post CALERIE trial
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Knee flexion at 60 degrees per second will be measured by isokinetic dynamometry and expressed in Nm.
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11-16 years post CALERIE trial
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Muscle strength - Knee flexion (180°)
Aikaikkuna: 11-16 years post CALERIE trial
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Knee flexion at 180 degrees per second will be measured by isokinetic dynamometry and expressed in Nm.
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11-16 years post CALERIE trial
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Handgrip Strength
Aikaikkuna: 11-16 years post CALERIE trial
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Handgrip strength will be measured via a hand dynamometer and expressed in kg.
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11-16 years post CALERIE trial
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Physical functioning
Aikaikkuna: 11-16 years post CALERIE trial
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Physical functioning as measured by a physical performance battery.
This physical performance battery provides a composite score ranging from 0 to 12 and includes results from the balance, gait and chair stand tests.
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11-16 years post CALERIE trial
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Cognition
Aikaikkuna: 11-16 years post CALERIE trial
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Cognition as measured by the Cambridge Neuropsychological Test Automated Battery (CANTAB).
The CANTAB evaluates six main areas of cognitive function: reaction time; verbal recognition memory; intra-extra dimensional set shift; rapid visual information processing; delayed matching to sample; and spatial working memory.
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11-16 years post CALERIE trial
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Dietary intake - calories
Aikaikkuna: 11-16 years post CALERIE trial
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Dietary intake in calories (kcals/day), as measured by multiple-pass 24-hour dietary recalls and Nutrition Data System for Research (NDSR) software.
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11-16 years post CALERIE trial
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Dietary intake - carbohydrates
Aikaikkuna: 11-16 years post CALERIE trial
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Dietary carbohydrates (grams and % of energy intake) will be measured by multiple-pass 24-hour dietary recalls and Nutrition Data System for Research (NDSR) software.
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11-16 years post CALERIE trial
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Dietary intake - proteins
Aikaikkuna: 11-16 years post CALERIE trial
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Dietary proteins (grams and % of energy intake) will be measured by multiple-pass 24-hour dietary recalls and Nutrition Data System for Research (NDSR) software.
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11-16 years post CALERIE trial
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Health-related quality of life
Aikaikkuna: 11-16 years post CALERIE trial
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Quality of life as measured by the RAND 36-Item Short Form Survey (SF-36).
The RAND SF-36 measures eight aspects of health: physical functioning, role limitations due to physical health problems, role limitations due to personal or emotional problems, energy/fatigue, emotional well-being, social functioning, bodily pain, and general health perceptions.
It also includes a single item that provides an indication of perceived change in health.
Each item is on a 3- or 5-point Likert scale (1-3 or 1-5).
Each response is transformed to a recoded value of 0-100, and the transformed scores of the 9 subscales are averaged to derive a composite score.
Higher scores indicate more favorable health states.
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11-16 years post CALERIE trial
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Depression status
Aikaikkuna: 11-16 years post CALERIE trial
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Depression status as measured by the Beck Depression Inventory II (BDI-II).
The 21-item BDI-II measures depression severity.
The score range is 0-63, with higher scores indicating greater depression severity.
Nineteen items are on a 4-point Likert scale (0-3).
Two items are on a 7-point Likert scale, and responses are scaled to 0-3.
The values are summed to calculate the total score.
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11-16 years post CALERIE trial
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Mood
Aikaikkuna: 11-16 years post CALERIE trial
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Mood as measured by the Profile of Mood States Second Edition (POMS 2).
The POMS 2 assesses six mood subscales using 65 items, each on a 5-point Likert scale (0-4): tension-anxiety (9 items, score range 0-36), depression-dejection (15 items, range 0-60), anger-hostility (12 items, range 0-48), vigor-activity (8 items, range 0-32), fatigue-inertia (7 items, range 0-28), and confusion-bewilderment (7 items, range 0-28).
High vigor-activity scores reflect a good mood or emotion, and low scores in the other subscales reflect a good mood or emotion.
Total mood disturbance, which is calculated by subtracting the vigor subscale score from the total subscale score (range 0-200), also will be assessed.
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11-16 years post CALERIE trial
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Sleep
Aikaikkuna: 11-16 years post CALERIE trial
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Sleep as measured by the Pittsburgh Sleep Quality Index (PSQI).
The PSQI measures sleep quality and disturbance over the course of one month using seven subscales: subjective sleep quality; sleep latency; sleep duration; habitual sleep efficiency; sleep disturbances; use of sleeping medication; and daytime dysfunction.
The scoring range of each subscale is 0-3.
The scoring range of the Global PSQI (the composite score of the seven subscales) is 0-21.
For both the subscales and Global PSQI, higher scores indicate greater difficulties with sleeping.
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11-16 years post CALERIE trial
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Sexual function
Aikaikkuna: 11-16 years post CALERIE trial
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Sexual function as measured by the Derogatis Interview for Sexual Functioning - Self Report (DISF-SR).
Both versions of the DISF-SR (male and female) are scored from 20 to 75, with higher scores indicating higher sexual functioning.
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11-16 years post CALERIE trial
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Food cravings
Aikaikkuna: 11-16 years post CALERIE trial
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Food cravings as measured by the Food Cravings Questionnaire-Trait (FCQ-T).
The FCQ-T measures frequency and intensity of food cravings.
It has 39 items on a 6-point Likert scale (1-6) and a score range of 39-234.
Higher scores indicate more frequent and intense food cravings.
Scores on all items are summed for a total score.
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11-16 years post CALERIE trial
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Dietary restraint, disinhibition, and hunger
Aikaikkuna: 11-16 years post CALERIE trial
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Dietary restraint, disinhibition, and hunger as measured by the Three-Factor Eating Questionnaire (TFEQ).
The 51-item TFEQ will be used to measure dietary restraint (21 items), disinhibition (16 items), and hunger (14 items).
Item responses are scored as 0 or 1 and summed.
Higher scores indicate higher levels of restrained eating (range 0-21), disinhibited eating (range 0-16), and predisposition to hunger (range 0-14).
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11-16 years post CALERIE trial
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Disordered eating
Aikaikkuna: 11-16 years post CALERIE trial
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Disordered eating as measured by the Multiaxial Assessment of Eating Disorder Symptoms (MAEDS).
MAEDS will be used to assess six domains of disordered eating: binge eating (range 8-56), restrictive eating (range 9-63), purgative behavior (range 7-49), fear of fatness (range 11-77), avoidance of forbidden foods (range 10-70), and depression (range 11-77).
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11-16 years post CALERIE trial
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Body shape perceptions
Aikaikkuna: 11-16 years post CALERIE trial
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Body shape perceptions as measured by the Body Shape Questionnaire (BSQ).
Items on the BSQ are rated on a 6-point Likert-type scale.
The score ranges from 34-204 points.
Higher scores indicate increased concern regarding body shape.
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11-16 years post CALERIE trial
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Physical activity
Aikaikkuna: 11-16 years post CALERIE trial
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Physical activity as measured by the 7-Day Stanford Physical Activity Recall (PAR).
The PAR estimates an individual's time spent in sleep and physical activity for the 7 days prior to the interview.
Energy expenditure based on time spent in sleep and physical activities can be estimated.
Sub-scores of energy expenditure for each of the following activities are calculated, summed, and averaged to estimate energy expenditure as kilocalories per day: sleep, moderate physical activity, hard physical activity, and very hard physical activity.
Higher scores indicate greater physical activity per day.
Metabolic equivalent (MET) value for each activity is provided: 1 MET for sleep, 4 METs for moderate activity, 6 METs for hard activity, and 10 METs for very hard activity.
Time spent in each activity over 7 days is multiplied by the appropriate MET value.
The minimum value for each activity is zero; there is no maximum value.
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11-16 years post CALERIE trial
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Resilience
Aikaikkuna: 11-16 years post CALERIE trial
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Resilience as measured by the 25-item Connor-Davidson Resilience Scale (CD-RISC-25).
CD-RISC-25 is scored from 0 to 100, with higher scores indicating higher resilience.
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11-16 years post CALERIE trial
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Total cholesterol
Aikaikkuna: 11-16 years post CALERIE trial
|
Total cholesterol will be measured in mg/dL using a standard lipid panel.
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11-16 years post CALERIE trial
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High-density lipoprotein cholesterol (HDL-C)
Aikaikkuna: 11-16 years post CALERIE trial
|
HDL-C will be measured in mg/dL using a standard lipid panel.
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11-16 years post CALERIE trial
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Triglycerides
Aikaikkuna: 11-16 years post CALERIE trial
|
Triglycerides will be measured in mg/dL using a standard lipid panel.
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11-16 years post CALERIE trial
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Low-density lipoprotein cholesterol (LDL-C)
Aikaikkuna: 11-16 years post CALERIE trial
|
LDL-C will be calculated in mg/dL using measured values of total cholesterol, HDL-C, and triglycerides.
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11-16 years post CALERIE trial
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Glucose - 0 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
|
Glucose (mg/dL) will be measured at 0 minutes (pre-dose) during an OGTT to evaluate glucoregulatory response.
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11-16 years post CALERIE trial
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Glucose - 30 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
|
Glucose (mg/dL) will be measured at 30 minutes post dose during an OGTT to evaluate glucoregulatory response.
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11-16 years post CALERIE trial
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Glucose - 60 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
|
Glucose (mg/dL) will be measured at 60 minutes post dose during an OGTT to evaluate glucoregulatory response.
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11-16 years post CALERIE trial
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Glucose - 90 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
|
Glucose (mg/dL) will be measured at 90 minutes post dose during an OGTT to evaluate glucoregulatory response.
|
11-16 years post CALERIE trial
|
|
Glucose - 120 min (OGTT)
Aikaikkuna: 11-16 years post CALERIE trial
|
Glucose (mg/dL) will be measured at 120 minutes post dose during an OGTT to evaluate glucoregulatory response.
|
11-16 years post CALERIE trial
|
|
Insulin resistance
Aikaikkuna: 11-16 years post CALERIE trial
|
Insulin resistance will be calculated using the Homeostatic Model Assessment (HOMA) and measured values of fasting glucose (mmol/L) and fasting insulin (μ/L): (fasting glucose × fasting insulin) ∕ 22.5
|
11-16 years post CALERIE trial
|
|
Beta-cell function
Aikaikkuna: 11-16 years post CALERIE trial
|
Beta-cell function will be calculated using HOMA-β and measures of fasting insulin (μ/L) and fasting glucose (mg/dL): HOMA-β (%) = (360 × fasting insulin) ∕ (fasting glucose - 63)
|
11-16 years post CALERIE trial
|
|
Insulinogenic Index
Aikaikkuna: 11-16 years post CALERIE trial
|
Insulinogenic index will be calculated as the ratio of change in plasma insulin (I) from 0 to 30 min of the OGTT to the change in plasma glucose (G) over the same period (∆I0-30 min ∕ ∆G0-30 min).
|
11-16 years post CALERIE trial
|
|
Insulin Sensitivity Index (ISI)
Aikaikkuna: 11-16 years post CALERIE trial
|
Insulin sensitivity index will be calculated as 1 ∕ fasting insulin (μ/L).
|
11-16 years post CALERIE trial
|
|
Oral Disposition Index
Aikaikkuna: 11-16 years post CALERIE trial
|
The Oral Disposition Index will be calculated as the product of insulinogenic index and insulin sensitivity index.
|
11-16 years post CALERIE trial
|
|
Triiodothyronine (T3)
Aikaikkuna: 11-16 years post CALERIE trial
|
T3, a blood-based marker of thyroid function, will be measured in ng/dL.
|
11-16 years post CALERIE trial
|
|
Thyroxine (T4)
Aikaikkuna: 11-16 years post CALERIE trial
|
T4, a blood-based marker of thyroid function, will be measured in ng/dL.
|
11-16 years post CALERIE trial
|
|
Thyroid stimulating hormone (TSH)
Aikaikkuna: 11-16 years post CALERIE trial
|
TSH, a blood-based marker of thyroid function, will be measured in μIU/mL.
|
11-16 years post CALERIE trial
|
|
Alkaline phosphatase (ALKP)
Aikaikkuna: 11-16 years post CALERIE trial
|
ALKP, a blood-based marker of liver function, will be measured in IU/L.
|
11-16 years post CALERIE trial
|
|
Alanine transaminase (ALT)
Aikaikkuna: 11-16 years post CALERIE trial
|
ALT, a blood-based marker of liver function, will be measured in U/L.
|
11-16 years post CALERIE trial
|
|
Aspartate aminotransferase (AST)
Aikaikkuna: 11-16 years post CALERIE trial
|
AST, a blood-based marker of liver function, will be measured in U/L.
|
11-16 years post CALERIE trial
|
|
Albumin
Aikaikkuna: 11-16 years post CALERIE trial
|
Albumin, a blood-based marker of liver and kidney function, will be measured in g/dL.
|
11-16 years post CALERIE trial
|
|
Blood Urea Nitrogen (BUN)
Aikaikkuna: 11-16 years post CALERIE trial
|
BUN, a blood-based marker of kidney function, will be measured in mg/dL.
|
11-16 years post CALERIE trial
|
|
Total Proteins
Aikaikkuna: 11-16 years post CALERIE trial
|
Total proteins are computed as a sum of albumin and globulin.
Total proteins are indicative of blood vessel and immune system function and will be measured in g/dL.
|
11-16 years post CALERIE trial
|
|
Bilirubin
Aikaikkuna: 11-16 years post CALERIE trial
|
Bilirubin, a blood-based marker of liver function, will be measured in mg/dL.
|
11-16 years post CALERIE trial
|
|
Creatine Phosphokinase (CPK)
Aikaikkuna: 11-16 years post CALERIE trial
|
CPK, an enzyme marker of energy homeostasis, will be measured in U/L.
|
11-16 years post CALERIE trial
|
|
Lactate Dehydrogenase (LDH)
Aikaikkuna: 11-16 years post CALERIE trial
|
LDH, an enzyme marker of liver function, will be measured in U/L.
|
11-16 years post CALERIE trial
|
|
Globulin
Aikaikkuna: 11-16 years post CALERIE trial
|
Globulin, a blood-based marker of liver function, will be measured in g/dL.
|
11-16 years post CALERIE trial
|
|
Albumin/Globulin (A/G) ratio
Aikaikkuna: 11-16 years post CALERIE trial
|
A/G ratio is a blood-based marker used to monitor nutritional status and immune system, kidney, and liver function.
This marker is a ratio, and therefore does not have units.
|
11-16 years post CALERIE trial
|
|
Uric Acid
Aikaikkuna: 11-16 years post CALERIE trial
|
Uric acid, a blood-based marker of purine metabolism, will be measured in mg/dL.
|
11-16 years post CALERIE trial
|
|
Calcium (Ca)
Aikaikkuna: 11-16 years post CALERIE trial
|
Calcium, a blood-based mineral, will be measured in mg/dL.
|
11-16 years post CALERIE trial
|
|
Phosphorus (P)
Aikaikkuna: 11-16 years post CALERIE trial
|
Phosphorus, a blood-based mineral, will be measured in mg/dL.
|
11-16 years post CALERIE trial
|
|
Magnesium (Mg)
Aikaikkuna: 11-16 years post CALERIE trial
|
Magnesium, a blood-based mineral, will be measured in meq/L.
|
11-16 years post CALERIE trial
|
|
Sodium (Na+)
Aikaikkuna: 11-16 years post CALERIE trial
|
Sodium, an electrolyte that reflects the body's fluid balance, will be measured in meq/L.
|
11-16 years post CALERIE trial
|
|
Potassium (K+)
Aikaikkuna: 11-16 years post CALERIE trial
|
Potassium, an electrolyte that reflects the body's fluid balance, will be measured in meq/L.
|
11-16 years post CALERIE trial
|
|
Chloride (Cl-)
Aikaikkuna: 11-16 years post CALERIE trial
|
Chloride, an electrolyte that reflects the body's fluid balance, will be measured in meq/L.
|
11-16 years post CALERIE trial
|
|
Apoprotein A1
Aikaikkuna: 11-16 years post CALERIE trial
|
Apoprotein A1, a blood-based marker of lipid metabolism, will be measured in mg/dL.
|
11-16 years post CALERIE trial
|
|
Apoprotein B
Aikaikkuna: 11-16 years post CALERIE trial
|
Apoprotein B, a blood-based marker of lipid metabolism, will be measured in mg/dL.
|
11-16 years post CALERIE trial
|
Muut tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
|---|---|---|
|
NAD Metabolites (NAD⁺ and NADH)
Aikaikkuna: 11-16 years post CALERIE trial
|
The oxidized (NAD⁺) and reduced form (NADH) of nicotinamide adenine dinucleotide will be measured in plasma using liquid chromatography-tandem mass spectrometry (LC-MS/MS) and/or fluorometric enzymatic cycling assays for NAD⁺/NADH.
Concentrations will be reported as nmol per mg protein or micromolar (µM) in plasma.
|
11-16 years post CALERIE trial
|
Yhteistyökumppanit ja tutkijat
Sponsori
Yhteistyökumppanit
Tutkijat
- Päätutkija: Sai Krupa Das, PhD, Tufts University
Opintojen ennätyspäivät
Opi tärkeimmät päivämäärät
Opiskelun aloitus (Todellinen)
Ensisijainen valmistuminen (Arvioitu)
Opintojen valmistuminen (Arvioitu)
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Ensimmäinen Lähetetty (Todellinen)
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Viimeksi vahvistettu
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Muut tutkimustunnusnumerot
- STUDY00002577
- 1R01AG071717-01A1 (Yhdysvaltain NIH-apuraha/sopimus)
Yksittäisten osallistujien tietojen suunnitelma (IPD)
Aiotko jakaa yksittäisten osallistujien tietoja (IPD)?
IPD-suunnitelman kuvaus
NIH:n tietojen julkista pääsyä koskevien käytäntöjen mukaisesti tutkimuksen päätyttyä Duke Universityn tietojen koordinointikeskus lukitsee sähköisen tietokannan ja puhdistaa tiedot ja poistaa niiden tunnistamisen ennen julkista lähettämistä. Pankkia varten kerätyt bionäytteet deidentifioidaan ja siirretään NIA AgingResearchBiobankiin, joka hyödyntää huippuluokan inventointijärjestelmää tutkimusnäytteiden tallentamiseen ja jakeluun tulevaa tieteellistä tutkimusta varten.
Myös tutkimusprotokolla ja tietoinen suostumuslomake asetetaan saataville.
IPD-jaon aikakehys
IPD-jaon käyttöoikeuskriteerit
Tietojen käyttöoikeutta ei rajoiteta. Kiinnostuneiden tutkijoiden on kuitenkin rekisteröidyttävä soveltuvalla verkkosivustolla päästäkseen tietoihin, jotka ovat saatavilla lataamalla. Tässä tutkimuksessa kerätyt tiedot sopivat pitkittäistietoihin ja monimuuttuja-monimuuttuja-analyysiin tai khin-neliön, ei-parametristen assosiaatiomittausten mukaiseen regressioon.
Bionäytteiden saamisesta kiinnostuneiden tutkijoiden on haettava pääsyä lähettämällä pyyntö NIA AgingResearchBiobank -verkkosivuston kautta (https://agingresearchbiobank.nia.nih.gov/how-to-make-a-request/). Tämän pyynnön lähettämiseksi tutkintaryhmän nimetyn jäsenen on rekisteröidyttävä käyttäjäksi AgingResearchBiobank-verkkosivustolla. Kuka tahansa tutkija voi lähettää bionäytteiden käyttöoikeuden tulevaa tutkimusta varten, mutta AgingResearchBiobankin on hyväksyttävä pääsy bionäytteisiin. Bionäytteet toimitetaan näytteinä, jotka toimitetaan hyväksytyille tutkijoille.
IPD-jakamista tukeva tietotyyppi
- STUDY_PROTOCOL
- ICF
Lääke- ja laitetiedot, tutkimusasiakirjat
Tutkii yhdysvaltalaista FDA sääntelemää lääkevalmistetta
Tutkii yhdysvaltalaista FDA sääntelemää laitetuotetta
Nämä tiedot haettiin suoraan verkkosivustolta clinicaltrials.gov ilman muutoksia. Jos sinulla on pyyntöjä muuttaa, poistaa tai päivittää tutkimustietojasi, ota yhteyttä register@clinicaltrials.gov. Heti kun muutos on otettu käyttöön osoitteessa clinicaltrials.gov, se päivitetään automaattisesti myös verkkosivustollemme .