If a woman of child-bearing potential, is sexually abstinent or has negative pregnancy test within 7 days of recruitment and agrees to use reliable form of contraception until she has completed the study
Able to give written informed consent to participate
You may not be if
Current diagnosis of asthma
Known clinically significant bronchiectasis
Known sarcoidosis, hyperparathyroidism, nephrolithiasis, active tuberculosis, vitamin D intolerance, liver failure, renal failure, terminal illness, lymphoma or other malignancy not in remission for ≥ 3 years
Taking benzothiadiazine derivative, cardiac glycoside, carbamazepine, phenobarbital, phenytoin or primidone
Taking dietary supplement or topical preparation containing vitamin D up to 2 months before first dose of IMP
Treatment with any investigational medical product or device up to 4 months before first dose of IMP
Breastfeeding, pregnant or planning a pregnancy
Baseline corrected serum calcium \> 2.65 mmol/L
Baseline serum creatinine \> 125 micromol/L
Clareo Health | Trial of Vitamin D Supplementation in Chronic Obstructive Pulmonary Disease