Evidence map›Paper›PMID 39396907›Full record

SynthesisBasic & clinical pharmacology & toxicology2024

Efficacy of weekly versus daily cholecalciferol for repleting serum vitamin D (25(OH)D) deficiency: A systematic review and meta-analysis of randomized controlled trials.

Émilie Bortolussi-Courval, Connor Prosty, Jimin J Lee, Lisa M McCarthy, Emily G McDonald, Todd C Lee

Abstract readComparative StudyMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Basic & clinical pharmacology & toxicology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Émilie Bortolussi-CourvalDivision of Clinical and Translational Research, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.ORCID https://orcid.org/0000-0002-4926-5195
Connor ProstyDepartment of Medicine, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
Jimin J LeeDivision of Clinical and Translational Research, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
Lisa M McCarthyLeslie Dan Faculty of Pharmacy, University of Toronto, Toronto, Ontario, Canada.
Emily G McDonaldDivision of Clinical and Translational Research, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.
Todd C LeeDivision of Clinical and Translational Research, Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background/rationaleWeekly cholecalciferol can replace daily supplementation to reduce pill burden in patients with complex medication regimens and hypovitaminosis D, but evidence supporting this switch is unclear.

objectiveWe aimed to determine whether weekly cholecalciferol was superior to daily cholecalciferol to replete patients with hypovitaminosis D.

methodsWe conducted a systematic review of randomized controlled trials involving participants with baseline hypovitaminosis D (<30 ng/ml) comparing weekly versus daily cholecalciferol dosing and where serum cholecalciferol was measured within 120 days of starting treatment. We searched MEDLINE, CINAHL and EMBASE from inception to 7 May 2024. A random-effects meta-analysis evaluated the odds ratio for repletion of serum vitamin D levels.

findingsEight trials involving 542 patients were included in the analysis. Weekly and daily cholecalciferol were not significantly different in correcting hypovitaminosis D (OR = 1.5, 95% CI = 0.3-6.9, p = 0.6, favouring weekly dosing, I

conclusionsLimited direct evidence supports a switch from daily to weekly cholecalciferol dosing; however, weekly supplementation was not demonstrably worse at repleting levels and decreased a patient's daily pill burden.

Indexed as

CholecalciferolDrug Administration ScheduleVitamin DVitamin D DeficiencyDietary SupplementsHumansRandomized Controlled Trials as TopicTreatment OutcomeCholecalciferolVitamin Dcholecalciferoldeprescribingdosing strategymeta‐analysissystematic review

Identifiers

PMID39396907
PMCPMC11617645

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.