Trial reportThe Journal of clinical endocrinology and metabolism2018
Bolus Weekly Vitamin D3 Supplementation Impacts Gut and Airway Microbiota in Adults With Cystic Fibrosis: A Double-Blind, Randomized, Placebo-Controlled Clinical Trial.
Trial report in The Journal of clinical endocrinology and metabolism, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 3 of them syntheses that pooled 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.
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.
Who cites it
64 citing papers in PubMed, 3 syntheses or guidelines pooled it, 122 citations in OpenAlex.
- Cystic Fibrosis-Related Gut Dysbiosis: A Systematic Review.Digestive diseases and sciences · 2023Pooled it
- The Association between Vitamin D and Gut Microbiota: A Systematic Review of Human Studies.Nutrients · 2021Pooled it
- Vitamin D and the gut microbiome: a systematic review of in vivo studies.European journal of nutrition · 2019Pooled it
- Randomized control trial of moderate dose vitamin D alters microbiota stability and metabolite networks in healthy adults.Microbiology spectrum · 2024Trial
- High Dose Intramuscular Vitamin D3 Supplementation Impacts the Gut Microbiota of Patients WithFrontiers in cellular and infection microbiology · 2022Trial
- Pilot Trial of Vitamin D3 and Calcifediol in Healthy Vitamin D Deficient Adults: Does It Change the Fecal Microbiome?The Journal of clinical endocrinology and metabolism · 2021Trial
- The potential role of vitamin D supplementation as a gut microbiota modifier in healthy individuals.Scientific reports · 2020Trial
- Vitamin D and Phenylbutyrate Supplementation Does Not Modulate Gut Derived Immune Activation in HIV-1.Nutrients · 2019Trial
- Trial
- Aging and Viral Respiratory Infections: Focus on Vitamin D and Microbiota.BioMed research international · 2026Review
- May nutrients and dietary supplements influence the gut-lung microbiota axis in chronic obstructive pulmonary disease and exacerbations?Archives of medical science : AMS · 2026Article
- The Role of Vitamin D and Vitamin D Receptor in Sepsis.Current issues in molecular biology · 2025Review
- Gut-vitamin D interplay: key to mitigating immunosenescence and promoting healthy ageing.Immunity & ageing : I & A · 2025Review
- Vitamin D and Chronic Rhinosinusitis with Nasal Polyps: A Narrative Review and Perspectives.Journal of clinical medicine · 2025Review
- Beneficial microbiome and diet interplay in early-onset colorectal cancer.EMBO molecular medicine · 2025Review
- Impact of high-dose cholecalciferol (vitamin D3) and inulin prebiotic on intestinal and airway microbiota in adults with cystic fibrosis: A 2 × 2 randomized, placebo-controlled, double-blind pilot study.Journal of clinical & translational endocrinology · 2024Article
- Vitamin D and prebiotics for intestinal health in cystic fibrosis: Rationale and design for a randomized, placebo-controlled, double-blind, 2 x 2 trial of administration of prebiotics and cholecalciferol (vitamin DContemporary clinical trials communications · 2024Article
- Review
- Review
- Vitamin D and Prebiotics for Intestinal Health in Cystic Fibrosis: Rationale and design for a randomized, placebo-controlled, double-blind, 2 × 2 trial of administration of prebiotics and cholecalciferol (vitamin DmedRxiv : the preprint server for health sciences · 2024Article
4 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors at 3 institutions in 1 country.
Funding
Abstract
Context: Disruption of gut microbiota may exacerbate severity of cystic fibrosis (CF). Vitamin D deficiency is a common comorbidity in patients with CF that may influence composition of the gut microbiota. Objectives: Compare microbiota of vitamin D-sufficient and -insufficient CF patients and assess impact of a weekly high-dose vitamin D3 bolus regimen on gut and airway microbiome in adults with CF and vitamin D insufficiency (25-hydroxyvitamin D < 30 ng/mL). Design: Forty-one subjects with CF were classified into two groups: vitamin D insufficient (n = 23) and vitamin D sufficient (n = 18). Subjects with vitamin D insufficiency were randomized to receive 50,000 IU of oral vitamin D3 or placebo weekly for 12 weeks. Sputum and stool samples were obtained pre- and postintervention and 16S ribosomal RNA genes sequenced using Illumina MiSeq technology. Results: Gut microbiota differed significantly based on vitamin D status with Gammaproteobacteria, which contain numerous, potentially pathogenic species enriched in the vitamin D-insufficient group. Principal coordinates analysis showed differential gut microbiota composition within the vitamin D-insufficient patients following 12 weeks treatment with placebo or vitamin D3 (permutation multivariate analysis of variance = 0.024), with Lactococcus significantly enriched in subjects treated with vitamin D3, whereas Veillonella and Erysipelotrichaceae were significantly enriched in patients treated with placebo. Conclusion: This exploratory study suggests that vitamin D insufficiency is associated with alterations in microbiota composition that may promote inflammation and that supplementation with vitamin D has the potential to impact microbiota composition. Additional studies to determine the impact of vitamin D on microbiota benefit clinical outcomes in CF are warranted.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.