NCT03534674 is a NA clinical trial of vitamin D3 in Vitamin D Deficiency, sponsored by University of British Columbia.

Who is sponsoring NCT03534674?

NCT03534674 is sponsored by University of British Columbia.

What drugs are being tested in NCT03534674?

Interventions in NCT03534674: vitamin D3.

What condition does NCT03534674 study?

NCT03534674 studies Vitamin D Deficiency.

Is NCT03534674 still recruiting?

NCT03534674 is currently status unknown. Last updated 23 May 2018.

Last reviewed 2018-05-23 · How we verify

NCT03534674

Name: Drug Landscape Pharmaceutical Database
Creator: Drug Landscape
Published: 2026-01-01
License: https://creativecommons.org/licenses/by/4.0/

Vitamin D3 Supplementation for AlloHSCT-RCT

Status unknown NA Last updated 23 May 2018

What this trial tests

NA trial testing vitamin D3 in Vitamin D Deficiency in 84 participants. Status unknown.

Timeline

15 June 2018

Primary endpoint
15 June 2019

15 December 2019

Quick facts

Lead sponsor	University of British Columbia
Phase	NA
Status	Status unknown
Study type	INTERVENTIONAL
Allocation	randomized
Design	parallel
Masking	none
Primary purpose	prevention
Enrollment	84
Start date	15 June 2018
Primary completion	15 June 2019
Estimated completion	15 December 2019
Sites	1 location across Canada

Drugs / interventions tested

vitamin D3 (cholecalciferol) — full drug profile →

Conditions studied

Vitamin D Deficiency — all drugs for Vitamin D Deficiency →

Sponsor

University of British Columbia

Who can join

18 and older, any sex, with Vitamin D Deficiency. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

This study is to assess whether a single oral loading dose of 100,000 IU vitamin D3 prior to allogeneic hematopoietic stem cell transplant (aHSCT) can achieve optimal 25 hydroxy-vitamin D3(25-OH-D3) levels (\>75nmol/L) at one month post aHSCT, and maintain adequate levels for at least three months, compared to our standard practice of 2000 IU vitamin D3 daily. 25-OH-D3 levels will be measured prior to vitamin D3 supplementation, and 30 as well as 100 days post vitamin D supplementation. We hypothesize that the intervention will prevent vitamin D insufficiency or deficiency in aHSCT recipients, therefore benefit aHSCT-associated morbidity, including osteoporosis.

Publications & conference data

2 peer-reviewed publications reference this trial (live from Europe PMC):

Applications of gut microbiota in patients with hematopoietic stem-cell transplantation.
Yu J, Sun H, Cao W, Han L, et al · · 2020 · cited 19× · PMID 33292670 · DOI 10.1186/s40164-020-00194-y
Loading dose vitamin D3 improves vitamin D insufficiency in adults undergoing hematopoietic stem cell transplantation: A randomized controlled trial.
Bai N, Lee K, Limvorapitak W, Liu E, et al · · 2023 · PMID 37883450 · DOI 10.1371/journal.pone.0284644

Verify or expand the search:

Other trials of vitamin D3

Trials testing the same drug.

NCT06896669 — Effects of Vitamin D and Calcium on Hyperglycemia and Dyslipidemia in Patients Gestational Diabetes · NA · completed
NCT04331639 — High Dose Interval Vitamin D Supplementation in Patients With Inflammatory Bowel Disease Receiving Biologic Therapy · recruiting
NCT04005612 — Effect of Vitamin d and Omega 3 on Osteocalcin · NA · completed
NCT05073029 — Open Label Randomized Clinical Study to Promote a Healthy Lifestyle in Medical Students · NA · completed
NCT03463642 — The Efficacy of Different Vitamin D Supplementation Delivery Methods · NA · completed

Other recruiting trials for Vitamin D Deficiency

Currently open trials in the same condition.

NCT07317830 — Effects of Different Vitamin D3 Formulations in Vitamin D-Deficient Adults · NA · recruiting
NCT07366970 — Is There a Benefit From Addition of Exercise in Diabetic Patients With ED Who Complain Low Vitamin D? · NA · recruiting
NCT07481240 — A Household-Based Dietary Intervention Study of Vitamin D Fortified Bread in Irish Families · NA · recruiting
NCT07006714 — Preoperative Correction of Vitamin D Deficiency in Total Joint Arthroplasty (TJA) · Phase 4 · active not recruiting
NCT07200011 — Effect of Vitamin D on the Clinical and Radiographic of Unsplinted Mandibular Implant Overdentures · active not recruiting

Other University of British Columbia trials

Trials by the same sponsor.

NCT07340970 — Sensory Stimuli During Cesarean Delivery · not yet recruiting
NCT07481201 — Phenylalanine Requirements in the Menstrual Phases · NA · not yet recruiting
NCT07492095 — Leucine Requirements in School-Age Children · NA · not yet recruiting
NCT07429305 — Combined Tibial Nerve Stimulation and Standing for People With SCI · NA · recruiting
NCT07519928 — Exploring the Feasibility and Benefits of Implementing Pelvic Floor Muscle Training During Inpatient Rehabilitation for · NA · recruiting

Verify against primary sources

ClinicalTrials.gov — authoritative US registry record
WHO ICTRP — international registry index
EU Clinical Trials Register
Sponsor press releases (Google)

Data sources for this page

Trial protocol + status: ClinicalTrials.gov NCT03534674 (US National Library of Medicine, public domain)
Publications: Europe PMC API search by NCT ID, retrieved 10 June 2026
Drug + disease cross-links: matched in real time against Drug Landscape's normalised drug + company + condition tables
Sponsor: as reported to ClinicalTrials.gov by University of British Columbia
Last refreshed: 23 May 2018

Drug Landscape aggregates and links these public records for informational use only. Always verify against the primary source before clinical or regulatory decisions. Canonical URL: https://druglandscape.com/trial/NCT03534674.

Primary sources · FDA · ClinicalTrials.gov · EMA · SEC EDGAR · ChEMBL · Wikidata · full sourcing