Drugs / Ergocalciferol
last change Jul 2026 re-read 2 minutes ago

Ergocalciferol

Small molecule targets VDR via activation

Developed for
vitamin D deficiency · obesity disorder · breast cancer · chronic kidney disease · end stage renal failure · disorders of vitamin D metabolism · asthma · cardiomyopathy
+26 more · chronic renal failure syndrome · congestive heart failure · glucose intolerance · Graves disease · hypertensive disorder · immunodeficiency-related disorder · impaired renal function disease · musculoskeletal system disorder · myopathy · neuropathy, painful · painful legs and moving toes syndrome · prediabetes syndrome · proteinuria · rheumatoid arthritis · sarcoidosis · secondary hyperparathyroidism of renal origin · systemic lupus erythematosus · tuberculosis · type 1 diabetes mellitus · abnormal mineralization disorder · atopic eczema · bone disorder · chronic pain syndrome · coronary artery disorder · cystic fibrosis · diabetes mellitus
Investigated by
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) · Department of Medical Services Ministry of Public Health of Thailand · Massachusetts General Hospital · Beijing Municipal Science & Technology Commission · Brigham and Women's Hospital · Chulalongkorn University
+54 more · Jiuda Zhao · King Faisal Specialist Hospital & Research Center · University of Texas Southwestern Medical Center · Albany College of Pharmacy and Health Sciences · Albert Einstein College of Medicine · Andrea Branch · Barts & The London NHS Trust · Beijing Haidian Hospital · Benjamin U. Nwosu, MD · Cedars-Sinai Medical Center · Department of Clinical Biochemistry, Homerton Hospital, London E9 6SR, UK · Dongliang Zhang, MD · Environmental Health Department, London Borough of Newham, London E15 4SF, UK · First Affiliated Hospital Xi'an Jiaotong University · Foundation of Orthopedic Trauma · Hamad Medical Corporation · Hortense & Louis Rubin Dialysis Center · Imperial College London · Kaiser Permanente · Mahidol University · Mayday Fund · Montefiore Medical Center · National Heart, Lung, and Blood Institute (NHLBI) · National Institute on Disability, Independent Living, and Rehabilitation Research · National Institute on Drug Abuse (NIDA) · National Kidney Foundation, United States · Nationwide Children's Hospital · New York City Health and Hospitals Corporation · New York Presbyterian Hospital · Newham Chest Clinic, London E7 8QP, UK · Northwell Health · Northwick Park Hospital, Harrow, UK · Ohio State University · Peking University People's Hospital · Peking University Third Hospital · Phoenix VA Health Care System · Phramongkutklao College of Medicine and Hospital · Satellite Healthcare · Stanford University · Tanta University · Texas Tech University Health Sciences Center · US Department of Veterans Affairs · University of Alabama at Birmingham · University of Cape Town · University of Massachusetts, Worcester · University of Utah · University of Wisconsin, Madison · VA Office of Research and Development · Virginia Commonwealth University · Wake Forest University Health Sciences · Walter Reed National Military Medical Center · Weill Medical College of Cornell University · Wellcome Trust · Wenhu Liu

Regulatory milestones approvals, filings & regulatory actions · 1 recorded

MilestoneJurisdictionBrandIndicationDateSentence it was read from
Approved US (FDA) DRISDOL 1941-01-11 fda.gov

Trials 47 · a red edge is where a trial was stopped

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PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT03747523 Mar → Dec 2019 Wake Forest University Health Sciences Completed No outcome recorded
Phase 12 trials
Phase 1 NCT01268111 Jan 2011 → Mar 2012 Texas Tech University Health Sciences Center Completed No outcome recorded
Phase 1 NCT02011828 May 2009 → Jan 2011 University of Utah Completed No outcome recorded
Phase 1/21 trial
Phase 1/2 NCT03066817 Jul 2017 → Mar 2020 musculoskeletal system disorder, vitamin D deficiency New York City Health and Hospitals Corporation Suspended No outcome recorded
Phase 22 trials
Phase 2 NCT07369063 Aug 2025 → Feb 2027 expected Graves disease Northwell Health Recruiting No outcome recorded
Phase 2 NCT05259527 Dec 2022 → Mar 2030 neuropathy, painful Virginia Commonwealth University Suspended No outcome recorded
Phase 2/32 trials
Phase 2/3 NCT03046927 Oct 2017 → Apr 2021 type 1 diabetes mellitus Benjamin U. Nwosu, MD Completed No outcome recorded
Phase 2/3 NCT00948740 Aug 2009 → Jun 2010 nephrolithiasis, vitamin D deficiency Brigham and Women's Hospital Withdrawn No outcome recorded
Phase 34 trials
Phase 3 NCT04591847 Oct 2020 → Jul 2021 Department of Medical Services Ministry of Public Health of Thailand Completed No outcome recorded
Phase 3 NCT01320722 Mar 2011 → May 2015 hypertensive disorder, impaired renal function disease, obesity disorder Brigham and Women's Hospital Completed No outcome recorded
Phase 3 NCT01029002 Oct 2009 → Jun 2014 chronic renal failure syndrome, proteinuria Albert Einstein College of Medicine Completed No outcome recorded
Phase 3 NCT00944424 Jul 2009 → Jul 2012 breast cancer King Faisal Specialist Hospital & Research Center Unknown No outcome recorded
Phase 413 trials
Phase 4 NCT07670611 Apr → Jul 2026 overdue cholestasis, liver disorder, vitamin D deficiency Chulalongkorn University Recruiting No outcome recorded
Phase 4 NCT05084248 Sep 2022 → Aug 2025 vitamin D deficiency University of Texas Southwestern Medical Center Completed No outcome recorded
Phase 4 NCT04472481 Sep → Dec 2019 rheumatoid arthritis Tanta University Completed No outcome recorded
Phase 4 NCT03228862 May 2017 → Feb 2018 vitamin D deficiency Chulalongkorn University Unknown No outcome recorded
Phase 4 NCT03035084 Feb → Nov 2017 vitamin D deficiency King Faisal Specialist Hospital & Research Center Completed No outcome recorded
Phase 4 NCT02005302 Jan 2013 → Dec 2015 protein-energy malnutrition, vitamin D deficiency Wenhu Liu Unknown No outcome recorded
Phase 4 NCT01633853 Jul 2012 → Sep 2015 vitamin D deficiency Dongliang Zhang, MD Completed No outcome recorded
Phase 4 NCT01568255 Mar 2012 → Jun 2019 myopathy Cedars-Sinai Medical Center Completed No outcome recorded
Phase 4 NCT02435771 Jul 2011 → Apr 2017 obesity disorder, vitamin D deficiency Walter Reed National Military Medical Center Terminated No outcome recorded
Phase 4 NCT01312441 Jan 2011 → Jun 2015 end stage renal failure, vitamin D deficiency Albany College of Pharmacy and Health Sciences Terminated No outcome recorded
Phase not applicable22 trials
NCT07366450 Feb 2026 → Dec 2028 expected disorders of vitamin D metabolism, non-Hodgkin lymphoma Phramongkutklao College of Medicine and Hospital Not yet recruiting No outcome recorded
NCT06642441 Dec 2024 → Jan 2026 overdue breast cancer, chemotherapy-induced toxicity Jiuda Zhao Recruiting No outcome recorded
NCT06642428 Oct 2024 → Jan 2026 overdue breast cancer, nutritional disorder Jiuda Zhao Recruiting No outcome recorded
NCT06618365 Feb 2023 → Jul 2025 overdue vitamin D deficiency Hamad Medical Corporation Active not recruiting No outcome recorded
NCT05673980 Dec 2022 → Jan 2023 Peking University Third Hospital Unknown No outcome recorded
NCT05549154 Dec 2022 → Aug 2023 end stage renal failure, secondary hyperparathyroidism of renal origin, vitamin D deficiency First Affiliated Hospital Xi'an Jiaotong University Unknown No outcome recorded
NCT05260255 Jun 2021 → May 2022 hyperparathyroidism, systemic lupus erythematosus, vitamin D deficiency Department of Medical Services Ministry of Public Health of Thailand Completed No outcome recorded
NCT04829487 May 2021 → Apr 2023 vitamin D deficiency Mahidol University Unknown No outcome recorded
NCT04909931 May 2021 → May 2022 Department of Medical Services Ministry of Public Health of Thailand Completed No outcome recorded
NCT02054975 Jan 2014 → Sep 2015 asthma, vitamin D deficiency Nationwide Children's Hospital Unknown No outcome recorded
Also used as a comparator or background therapy in 21 trials
PhaseRegistry idDatesIndicationSponsorStatusOutcome
Phase 01 trial
Phase 0 NCT04450199 Comparator Jul 2020 → Dec 2023 vitamin D deficiency Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute) Completed No outcome recorded
Phase 11 trial
Phase 1 NCT01578473 Comparator May → Jul 2013 Peyronie disease Men's Health Boston Completed No outcome recorded
Phase 23 trials
Phase 2 NCT05619289 Comparator Apr 2023 → Jan 2026 chronic pain syndrome University of North Carolina, Chapel Hill Completed No outcome recorded
Phase 2 NCT05458024 Comparator Jan 2023 → May 2024 musculoskeletal system disorder University of North Carolina, Chapel Hill Completed No outcome recorded
Phase 2 NCT02074631 Background Feb 2015 → Oct 2022 osteoporosis Masonic Cancer Center, University of Minnesota Completed No outcome recorded
Phase 31 trial
Phase 3 NCT01173848 Comparator Jul 2010 → Sep 2011 chronic kidney disease The Cleveland Clinic Terminated No outcome recorded
Phase 48 trials
Phase 4 NCT05313477 Comparator May 2022 → Aug 2023 chronic hepatitis B virus infection, vitamin D deficiency Mahidol University Completed No outcome recorded
Phase 4 NCT03073369 Comparator Jan → Dec 2018 anemia, chronic kidney disease, iron metabolism disease University of Alabama at Birmingham Withdrawn No outcome recorded
Phase 4 NCT01114672 Comparator Jul 2010 → Nov 2011 Winthrop University Hospital Completed No outcome recorded
Phase 4 NCT00958451 Comparator Jul 2009 → Jan 2011 chronic kidney disease, secondary hyperparathyroidism of renal origin Salem Veterans Affairs Medical Center Completed No outcome recorded
Phase 4 NCT00882401 Comparator Apr 2009 → Oct 2010 chronic kidney disease, vitamin D deficiency Barts & The London NHS Trust Completed No outcome recorded
Phase not applicable7 trials
NCT02827643 Comparator Jun 2016 → Mar 2017 bone disorder Mahidol University Unknown No outcome recorded
NCT02414529 Comparator Nov 2013 → Oct 2015 vitamin D deficiency NYU Langone Health Completed No outcome recorded
NCT01170494 Comparator Feb 2013 → Apr 2016 vitamin D deficiency King Faisal Specialist Hospital & Research Center Completed No outcome recorded
NCT01337635 Comparator Nov 2010 → Dec 2012 atopic eczema, vitamin D deficiency Medical College of Wisconsin Terminated No outcome recorded
NCT01426347 Comparator Jan 2009 → Jan 2012 rheumatoid arthritis, vitamin D deficiency Johns Hopkins University Completed No outcome recorded

Evidence & citations 29 cited values

Every value below carries the sentence it was read from. 72 sources stand behind the page.

FieldValueCited text
Known as Ergocalciferol “Randomized Phase III Trial to Determine the Effectiveness of High Dose Versus Standard Dose of Vitamin D2 (Ergocalciferol) Given With Docetaxel in Patients With Metastatic Breast Cancer” NCT00944424
45

“Vitamin D one 50,000 International Units(IU) tablet of ergocalciferol per week for two months followed by one tablet every other week for four months” NCT01474486

“Nocturnal Leg Cramps in the Elderly: Randomized Controlled Trial of Ergocalciferol (Vitamin D2) for a Painful and Distressing Problem” NCT00715429

“Vitamin D, ergocalciferol, 50000 IU, weekly for 12 weeks, with open label extension for another 3 months” NCT01029002

“The most commonly prescribed medication to replete vitamin D deficiency is oral ergocalciferol.” NCT02435771

“300,000 international units (IUs) of Ergocalciferol in 6 50,000 IU capsules.” NCT05458024

ergocalciferol (vitamin D2) treatment 50,000 IU orally, weekly for 8 weeks” NCT01107808

Ergocalciferol 300,000 IU single oral dose” NCT01337635

NCT01114672

NCT01295879

NCT01570309

NCT01173848

NCT05313477

NCT01568255

NCT01217840

NCT03747523

NCT01426347

NCT05084248

NCT03073369

NCT00958451

NCT00882401

NCT05259527

NCT00892099

NCT05619289

NCT02074631

NCT03228862

NCT03046927

NCT07369063

NCT00288873

NCT03621553

NCT07366450

NCT00948740

NCT00157066

NCT00742235

NCT01026363

NCT01263028

NCT00450073

NCT02011828

NCT01153243

NCT01320722

NCT01170494

NCT04829487

NCT03066817

NCT04472481

NCT01268111

NCT01312441

Known as calciferol “vitamin D2 ( calciferol )” NCT05260255
Known as Deltalin ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as DRISDOL “The intervention cohort will receive a one-time 400,000 IU liquid ergocalciferol (50cc of Ergocalciferol 8000 IU/ML Oral Liquid [DRISDOL]) via oral, nasogastric tube, or...” NCT03066817
1

Drisdol (Ergocalciferol) Vitamin D2” NCT01217840

Known as Eciferol d2 ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Ergo-d2 ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Ergocalciferol component of vitaped ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Ergocalciferols “Drug: ErgocalciferolsNCT01268111
Known as Ergocalciferolum ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Ergoral d2 ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Ergorone ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as NSC-62792 ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Ostelin ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Sterogyl ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Sterogyl 15h ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Sterogyl-15 ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Uvesterol d ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Viosterol ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Vit D2 “Patients will be treated by vitamin D2. Oral Vit D2 1.25mg(50,000 unit) once weekly as a start and maintain 1.25mg(50,000 unit) once monthly according to the blood...” NCT01633853
Known as Vitamin D Vitamin D one 50,000 International Units(IU) tablet of ergocalciferol per week for two months followed by one tablet every other week for four months” NCT01474486
2

“The purpose of this study is to determine how vitamin D supplementation (ergocalciferol) affects the immune response to mycobacterial infection.” NCT00157066

Vitamin D, ergocalciferol, 50000 IU, weekly for 12 weeks, with open label extension for another 3 months” NCT01029002

Known as Vitamin d (ergocalciferol) ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Vitamin d nos ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as Vitamin d, unspecified form ChEMBL registry synonym — accepted as the source's own label CHEMBL1536
Known as vitamin D2 “Randomized Phase III Trial to Determine the Effectiveness of High Dose Versus Standard Dose of Vitamin D2 (Ergocalciferol) Given With Docetaxel in Patients With Metastatic Breast Cancer” NCT00944424
31

“Once daily calcium carbonate 1,250 mg that equal to elemental calcium 600 mg and weekly vitamin D2 20,000international units are given in intervention arms for duration of 24 weeks” NCT02827643

“Because of this, we studied whether vitamin D2 treatment with ergocalciferol is effective for relief of uremic pruritus severity as measured by pruritus severity surveys.” PMID 23453391 Feb 2013

“Nocturnal Leg Cramps in the Elderly: Randomized Controlled Trial of Ergocalciferol (Vitamin D2) for a Painful and Distressing Problem” NCT00715429

Vitamin D2 (Ergocalciferol) is approved by the FDA to treat Vitamin D deficiency and will be given according to approved labeling.” NCT01568255

“investigating the impact of high-dose vitamin D2 (ergocalciferol) supplementation as an adjunctive therapy” NCT07369063

“The supplementation of Ergocalciferol (Vitamin D2) to those with Vitamin D deficiency” NCT01263028

“50,000 IU/wk of vitamin D2 for 8 wk followed by 1000 IU/d of vitamin D3 for 48 wk.” NCT01295034

“50000 IU of Vitamin D2 (Ergocalciferol 1.25 mg tablet) weekly for 3 months” NCT04472481

“Group 1: Vitamin D2 50000 units per tablet” NCT06618365

Vitamin D2 20000IU 1 tab oral weekly” NCT04591847

“Drisdol (Ergocalciferol) Vitamin D2NCT01217840

“ergocalciferol (vitamin D2)” NCT07366450

“Drug: Vitamin D 2” NCT04591847

NCT05673980

NCT01799317

NCT01578473

NCT07670611

NCT01633853

NCT06642441

NCT03035084

NCT01672047

NCT00424619

NCT02054975

NCT02005302

NCT05549154

NCT06642428

NCT05260255

NCT02414529

NCT04909931

NCT01375660

NCT04450199

Known as Vitamin D2 =ergocalciferol Vitamin D2 =ergocalciferolNCT01107808