Vitamin D, Diet and Activity Study (ViDA)
5. august 2013 oppdatert av: Fred Hutchinson Cancer Center
Vitamin D, Weight Loss, and Breast Cancer Biomarkers
Experimental and human data suggests that vitamin D could protect against breast cancer.
Overweight/obese individuals are at increased risk of low vitamin D levels.
Vitamin D may reduce production of fat tissue, thereby reducing weight gain, which would result in lower levels of adipose-derived hormones and other breast cancer risk factors.The purpose of this study is to test the effect of vitamin D supplementation on the response to a weight loss (diet + exercise) intervention and select breast cancer risk factors in overweight and obese postmenopausal women with low blood vitamin D levels.
Studieoversikt
Status
Fullført
Forhold
Intervensjon / Behandling
Detaljert beskrivelse
Objective: To test the incremental effect of vitamin D supplementation (2000 IU/day) in 228 overweight and obese postmenopausal women with low blood vitamin D levels on response to a weight loss (diet + exercise) intervention in a double-blind placebo-controlled clinical trial.
Primary Aim:
• Determine the effects of 12-months vitamin D supplementation vs. placebo on weight loss in women following a weight loss diet and exercise program.
Secondary Aims:
- Determine the effects of 12-months vitamin D vs. placebo on blood biomarkers associated with increased breast cancer risk (insulin, glucose, CRP).
- Test 12-months vitamin D effects on muscle strength as measured by 1RM leg press and bench press in women undergoing weight loss.
- Test the effect of 12-month vitamin D supplementation on effects on quality of life (QOL) in women undergoing weight loss.
Additional Aims:
- In a 50% subset of women, test the effect of 12-month vitamin D supplementation vs. placebo on breast epithelial cell cytomorphology (quantified by the Masood cytology index) obtained through random periareolar fine needle aspiration (RPFNA).
- Collect subcutaneous abdominal fat aspirations in the 50% subsample of women.
OUTLINE: This is a randomized study. Participants are stratified according to body mass index (< 30 vs ≥ 30) and RPFNA-consent. All participants will receive a 6-month weight loss intervention (prescribed weight loss goal of 10% of initial body weight) followed by 6 months' maintenance therapy.
Baseline, 6-, and 12-month measurements will include weight, BMI, waist and hip circumference, serum 25-hydroxyvitamin D, fasting blood samples, and questionnaires on details of diet especially items containing vitamin D, physical activity levels, sun exposure including clothing and sunscreen habits, dietary supplement and vitamin use, and medications.
Studietype
Intervensjonell
Registrering (Faktiske)
218
Fase
- Ikke aktuelt
Kontakter og plasseringer
Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.
Studiesteder
-
-
Washington
-
Seattle, Washington, Forente stater, 98109
- Fred Hutchinson Cancer Research Center
-
-
Deltakelseskriterier
Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
50 år til 75 år (Voksen, Eldre voksen)
Tar imot friske frivillige
Ja
Kjønn som er kvalifisert for studier
Hunn
Beskrivelse
Inclusion Criteria:
- Age 50-75 years
- Postmenopausal (no periods for past 12 months)
- Screening serum vitamin D (25(OH)D) between 10 and 32 ng/mL ("insufficient")
- No menopausal HRT use of any type including vaginal X 6 months and willing to avoid use for study duration
- BMI > 25.0 kg/m2 (> 23.0 for Asians)
- Physically able to undertake a calorie reduction and exercise program
- Able to come for clinic visits, classes, and measurements, fill out questionnaires and logs in English
- Gives informed consent, agrees to be randomly assigned
Exclusion Criteria:
- Currently using more that 400 IU vitamin D from supplemental sources
- Screening vitamin D level < 10 ng/mL (will be referred to primary provider) or > 32 ng/mL (already sufficient)
- Osteoporosis
- Renal disease, history of kidney stones
- Any contra-indications to taking vitamin D 2000 IU/day
- Plans to leave the study area within the follow-up period
- Plans to join another organized weight loss program or take appetite suppressant medication during the study period
- History of bariatric surgery
- Current use of medications likely to interfere with adherence to interventions or study outcomes
- Current smoker
- Personal history of invasive or in situ breast cancer
- Personal history of invasive cancer other than breast: except for non- melanoma skin cancer which would be eligible
- Diabetes mellitus
- Abnormalities on screening physical that contraindicate participation
- Severe congestive heart failure per NYHA criteria 3 & 4
- Contraindications for entry into a research exercise program: recent (within 6 months) myocardial infarction, pulmonary edema, myocarditis, pericarditis, unstable angina, pulmonary embolism, deep vein thrombosis, uncontrolled hypertension (systolic > 200, diastolic > 100), orthostatic hypotension, moderate/severe aortic stenosis, uncontrolled arrythmia, uncontrolled congestive heart failure, left bundle branch block, history of cardiac arrest or stroke
- Alcohol or drug abuse, significant mental illness (as assessed by study staff impression)
- For the RPFNA/adipose tissue substudy: bilateral breast cancer, bilateral mastectomy, unable or unwilling to stop aspirin or NSAIDs for 1 week before and after the procedure, allergy to anesthetics or local anesthetics.
Studieplan
Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.
Hvordan er studiet utformet?
Designdetaljer
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Trippel
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
|---|---|
|
Placebo komparator: Placebo
|
1 Placebo per day
Andre navn:
|
|
Aktiv komparator: Vitamin D
2000 IU per day of Vitamin D
|
2000 IU per day of Vitamin D
Andre navn:
|
Hva måler studien?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
|
Compare the effects of a 1-year one year Vitamin D supplementation vs placebo, on weight loss in postmenopausal women following a weight loss diet and exercise program.
Tidsramme: One Year
|
One Year
|
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Determine the effects of 12-months vitamin D vs. placebo on blood biomarkers (insulin,glucose,CRP) associated with increased breast cancer risk.
Tidsramme: One Year
|
One Year
|
|
|
Test 12-months vitamin D effects on muscle strength as measured by 1RM leg press and bench press in women undergoing weight loss.
Tidsramme: One Year
|
One Year
|
|
|
Test the effect of 12-month vitamin D supplementation on effects on quality of life (QOL) in women undergoing weight loss.
Tidsramme: One Year
|
One Year
|
|
|
Effect of Vitamin D supplementation on breast epithelial cell cytomorphology
Tidsramme: One Year
|
In a 50% subset of women, test the effect of 12-month vitamin D supplementation vs. placebo on breast epithelial cell cytomorphology (quantified by the Masood cytology index) obtained through random periareolar fine needle aspiration (RPFNA).
|
One Year
|
|
Effect of Vitamin D on epithelial cell gene expression
Tidsramme: One year
|
In a 50% subset of women, test the effect of 12-month vitamin D supplementation vs. placebo on breast epithelial cell gene expression as measured by qRT-PCR.
The breast epithelial cells are collected by RPFNA
|
One year
|
Samarbeidspartnere og etterforskere
Det er her du vil finne personer og organisasjoner som er involvert i denne studien.
Sponsor
Etterforskere
- Hovedetterforsker: Anne McTiernan, MD, PhD, Fred Hutchinson Cancer Center
Publikasjoner og nyttige lenker
Den som er ansvarlig for å legge inn informasjon om studien leverer frivillig disse publikasjonene. Disse kan handle om alt relatert til studiet.
Generelle publikasjoner
- Mason C, de Dieu Tapsoba J, Duggan C, Wang CY, Korde L, McTiernan A. Repletion of vitamin D associated with deterioration of sleep quality among postmenopausal women. Prev Med. 2016 Dec;93:166-170. doi: 10.1016/j.ypmed.2016.09.035. Epub 2016 Sep 28.
- Mason C, Tapsoba JD, Duggan C, Imayama I, Wang CY, Korde L, McTiernan A. Effects of Vitamin D3 Supplementation on Lean Mass, Muscle Strength, and Bone Mineral Density During Weight Loss: A Double-Blind Randomized Controlled Trial. J Am Geriatr Soc. 2016 Apr;64(4):769-78. doi: 10.1111/jgs.14049. Epub 2016 Apr 5.
- Duggan C, de Dieu Tapsoba J, Mason C, Imayama I, Korde L, Wang CY, McTiernan A. Effect of Vitamin D3 Supplementation in Combination with Weight Loss on Inflammatory Biomarkers in Postmenopausal Women: A Randomized Controlled Trial. Cancer Prev Res (Phila). 2015 Jul;8(7):628-35. doi: 10.1158/1940-6207.CAPR-14-0449. Epub 2015 Apr 23.
- Mason C, Xiao L, Imayama I, Duggan C, Wang CY, Korde L, McTiernan A. Vitamin D3 supplementation during weight loss: a double-blind randomized controlled trial. Am J Clin Nutr. 2014 May;99(5):1015-25. doi: 10.3945/ajcn.113.073734. Epub 2014 Mar 12. Erratum In: Am J Clin Nutr. 2014 Oct;100(4):1213.
Studierekorddatoer
Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.
Studer hoveddatoer
Studiestart
1. oktober 2010
Primær fullføring (Faktiske)
1. august 2012
Studiet fullført (Faktiske)
1. september 2012
Datoer for studieregistrering
Først innsendt
9. november 2010
Først innsendt som oppfylte QC-kriteriene
10. november 2010
Først lagt ut (Anslag)
15. november 2010
Oppdateringer av studieposter
Sist oppdatering lagt ut (Anslag)
7. august 2013
Siste oppdatering sendt inn som oppfylte QC-kriteriene
5. august 2013
Sist bekreftet
1. august 2013
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
- Metabolske sykdommer
- Hudsykdommer
- Neoplasmer
- Neoplasmer etter nettsted
- Bryst sykdommer
- Ernæringsforstyrrelser
- Muskel- og skjelettsykdommer
- Mangelsykdommer
- Underernæring
- Beinsykdommer
- Bensykdommer, metabolske
- Forstyrrelser i kalsiummetabolisme
- Brystneoplasmer
- Vitamin D-mangel
- Rakitt
- Avitaminose
- Fysiologiske effekter av legemidler
- Mikronæringsstoffer
- Vitaminer
- Bone Density Conservation Agents
- Vitamin d
Andre studie-ID-numre
- SAC110024
- IR 7297 (Annen identifikator: FHCRC IRB)
Denne informasjonen ble hentet direkte fra nettstedet clinicaltrials.gov uten noen endringer. Hvis du har noen forespørsler om å endre, fjerne eller oppdatere studiedetaljene dine, vennligst kontakt register@clinicaltrials.gov. Så snart en endring er implementert på clinicaltrials.gov, vil denne også bli oppdatert automatisk på nettstedet vårt. .