- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg NCT01150877
High Dose Vitamin D Study
Study of High-dose Vitamin D Supplementation in Stage-4 Colorectal Cancer Patients
The purpose of this study is to investigate the therapeutic effect and the safety of high-dose vitamin D supplementation in metastatic colorectal cancer patients. We propose to supplement metastatic (stage 4) colorectal cancer patients with oral doses of vitamin D to raise serum 25-hydroxy-vitamin D [25(OH)D] levels to the high normal range of 200-250 nmol/L. The primary objective of this study is to evaluate the metabolic consequences, including tolerability and toxicity, of prolonged, high-dose physiological vitamin D in patients with colorectal cancer. The secondary objective is to evaluate patient survival with regards to high-dose vitamin D supplementation.
Hypothesis:
Whereas low doses of vitamin D reportedly play a significant role in prevention of colorectal cancers, do much larger (pharmacological) doses of vitamin D have a significant therapeutic effect against the same kind of cancer?
Studieoversigt
Detaljeret beskrivelse
Undersøgelsestype
Tilmelding (Forventet)
Fase
- Fase 2
- Fase 1
Kontakter og lokationer
Studiesteder
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British Columbia
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Vancouver, British Columbia, Canada, V6H 4A6
- InspireHealth
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
Inclusion Criteria (We will recruit stage 4 (metastatic) colorectal cancer patients who are clients at InspireHealth):
- Age > 18
- Histologically confirmed colon or rectal cancer
- Known metastatic disease (stage-4) confirmed histologically or radiologically
- Life expectancy of >8 months
- May receive anti-neoplastic therapy at the discretion of their physician
- Stable metastatic disease defined as no change in systemic for the month before and the month after commencing study
- Signed informed consent
Exclusion Criteria(Stage 4 colorectal cancer patients):
- Pregnant / lactating women
- Known hypersensitivity to vitamin D
- Pre-existing renal stone disease based on history
- Pre-existing hypercalcemia
- Severe renal or hepatic dysfunction (≥ 2x of the upper normal range)
- granulomatous disease (TB and sarcoid)
- unable to give informed consent in English (translations of study documents in languages other than English will not be provided)
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Behandling
- Tildeling: Randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
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Ingen indgriben: Ingen indgriben
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Eksperimentel: Experimental Dietary Supplement (e.g., vitamins, minerals)
Experimental arm is supplemented with high-dose of vitamin D.
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We propose to study high-dose, oral vitamin D supplementation, raising serum 25-hydroxy-vitamin D (25(OH)D) concentrations to 200 -250 nmol/L, in metastatic colorectal cancer patients with safety, tolerability and survival as the main outcome measurements.
The dose is not pre-set and will depend on the individual subjects' serum 25(OH)D concentration.
Subjects will be supplemented for 16 months with a daily oral dose, followed by a 12 months follow-up period.
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Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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The metabolic consequences, including tolerability and toxicity, of prolonged, high-dose physiological vitamin D in patients with colorectal cancer.
Tidsramme: After 16 months of intervention
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After 16 months of intervention
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The metabolic consequences, including tolerability and toxicity, of prolonged, high-dose physiological vitamin D in patients with colorectal cancer.
Tidsramme: After 12 months of follow-up
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After 12 months of follow-up
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Sekundære resultatmål
Resultatmål |
Tidsramme |
|---|---|
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Patient survival with regards to high-dose vitamin D supplementation.
Tidsramme: After 16 months of intervention
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After 16 months of intervention
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Patient survival with regards to high-dose vitamin D supplementation.
Tidsramme: After 12 months of follow-up
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After 12 months of follow-up
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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Hal Gunn, MD, University of British Columbia
Publikationer og nyttige links
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
- Sygdomme i fordøjelsessystemet
- Neoplasmer
- Neoplasmer efter sted
- Gastrointestinale neoplasmer
- Neoplasmer i fordøjelsessystemet
- Gastrointestinale sygdomme
- Tyktarmssygdomme
- Tarmsygdomme
- Intestinale neoplasmer
- Endetarmssygdomme
- Kolorektale neoplasmer
- Lægemidlers fysiologiske virkninger
- Mikronæringsstoffer
- Vitaminer
- Knogletæthedsbevarende midler
- D-vitamin
Andre undersøgelses-id-numre
- H10-00028
Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .
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Syndax PharmaceuticalsMerck Sharp & Dohme LLCAfsluttetMelanom | Ikke-småcellet lungekræft | Mismatch Reparation-Proficient Colorectal CancerForenede Stater
Kliniske forsøg med Vitamin D
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Universidad Autónoma Benito Juárez de OaxacaNational Council of Science and Technology, MexicoAfsluttetFedme | Muskelsvaghed | D-vitamin mangel | Sarkopeni | Aldring | Sarkopenisk fedme | Fedme (lidelse) | Sarkopeni hos ældre | Muskelmasse | Funktionelt fald | Aldersrelateret tab af skeletmuskelmasse | Ældre voksne (65 år og ældre) | Muskelstyrke | Vitamin D 25-Hydroxylase mangelMexico
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Nutrition Institute, SloveniaSlovenian Research Agency; Higher School of Applied Sciences (VIST); Valens...AfsluttetD-vitamin mangelSlovenien
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Khon Kaen UniversityAfsluttetEndometriose | D-vitamin status | D-vitaminmangel/mangelThailand
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USDA, Western Human Nutrition Research CenterAfsluttet
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Fundación Cardiovascular de ColombiaUniversidad Industrial de Santander; Farma de Colombia SAAfsluttetD-vitamin mangel | Overvægt og fedme | Overvægtige ungeColombia
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Karadeniz Technical UniversityAktiv, ikke rekrutterendeDe, der gav skriftligt informeret samtykke | Kvindeligt køn | Alder 18 år og ældre | Hypotyreose-sygdom | Serum vitamin D < 30 ng/dlTyrkiet (Türkiye)
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University of AarhusIkke rekrutterer endnuSygdomme i immunsystemet | Vækst | Børns udvikling | D-vitamintilskud