{ "api_version": "1", "request": { "url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Dietary+Deficiency&page=3", "query": { "condition": "Dietary Deficiency", "page": 3 }, "page_size": 10 }, "pagination": { "page": 3, "page_size": 10, "total_count": 604, "total_pages": 61, "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Dietary+Deficiency&page=4&page_size=10", "previous_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?condition=Dietary+Deficiency&page=2&page_size=10" }, "source": "remote", "last_synced_at": "2026-10-20T07:26:10.866Z", "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.", "notes": [ "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.", "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.", "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees." ], "trials": [ { "nct_id": "NCT03053414", "title": "Vitamin D Repletion and Maintenance in IBD: How Much and How Often", "overall_status": "WITHDRAWN", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Inflammatory Bowel Diseases", "Vitamin D Deficiency" ], "interventions": [ { "name": "Vitamin D (ergocalciferol and/ or cholecalciferol)", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "Cedars-Sinai Medical Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "85 Years", "sex": "ALL", "summary": "18 Years to 85 Years" }, "enrollment_count": 0, "start_date": "2017-02-20", "completion_date": "2018-12-01", "has_results": false, "last_update_posted_date": "2018-03-21", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "Los Angeles, California", "locations": [ { "city": "Los Angeles", "state": "California" } ], "official_url": "https://clinicaltrials.gov/study/NCT03053414" }, { "nct_id": "NCT02212652", "title": "Vitamin D to Improve Nutrition Prior to Bariatric Surgery and Investigate the Relationship With Negative Outcomes", "overall_status": "TERMINATED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Vitamin D Deficiency", "Vitamin D Insufficiency" ], "interventions": [ { "name": "Vitamin D", "type": "DIETARY_SUPPLEMENT" }, { "name": "Placebo", "type": "OTHER" }, { "name": "Standard of Care", "type": "OTHER" } ], "intervention_types": [ "DIETARY_SUPPLEMENT", "OTHER" ], "sponsor": "Johns Hopkins University", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": "64 Years", "sex": "ALL", "summary": "18 Years to 64 Years" }, "enrollment_count": 70, "start_date": "2017-01", "completion_date": "2017-04", "has_results": false, "last_update_posted_date": "2019-06-06", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "Baltimore, Maryland", "locations": [ { "city": "Baltimore", "state": "Maryland" } ], "official_url": "https://clinicaltrials.gov/study/NCT02212652" }, { "nct_id": "NCT01655810", "title": "Vitamin D, Cardiovascular Disease, and African Americans", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Vitamin D Deficiency", "Type 2 Diabetes Mellitus", "Cardiovascular Disease" ], "interventions": [ { "name": "Vitamin D3", "type": "DIETARY_SUPPLEMENT" }, { "name": "Calcium carbonate", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "Washington University School of Medicine", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "50 Years", "maximum_age": "70 Years", "sex": "ALL", "summary": "50 Years to 70 Years" }, "enrollment_count": 86, "start_date": "2012-08-13", "completion_date": "2018-02-09", "has_results": false, "last_update_posted_date": "2020-06-05", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "St Louis, Missouri", "locations": [ { "city": "St Louis", "state": "Missouri" } ], "official_url": "https://clinicaltrials.gov/study/NCT01655810" }, { "nct_id": "NCT00292591", "title": "Evaluation of Vitamin D Requirements During Pregnancy", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE3" ], "conditions": [ "Vitamin D Deficiency" ], "interventions": [ { "name": "cholecalciferol (vitamin D3)", "type": "DRUG" }, { "name": "cholecalciferol", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "Medical University of South Carolina", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "16 Years", "maximum_age": "45 Years", "sex": "FEMALE", "summary": "16 Years to 45 Years · Female only" }, "enrollment_count": 501, "start_date": "2004-01", "completion_date": "2010-01", "has_results": true, "last_update_posted_date": "2016-09-19", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "Charleston, South Carolina", "locations": [ { "city": "Charleston", "state": "South Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT00292591" }, { "nct_id": "NCT05011370", "title": "Prevalence of Liver Disease in Patients Dependent on Parenteral Nutrition", "overall_status": "COMPLETED", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Intestinal Failure-associated Liver Disease" ], "interventions": [], "intervention_types": [], "sponsor": "Protara Therapeutics", "sponsor_class": "INDUSTRY", "healthy_volunteers": false, "eligibility": { "minimum_age": "12 Years", "maximum_age": "80 Years", "sex": "ALL", "summary": "12 Years to 80 Years" }, "enrollment_count": 80, "start_date": "2021-08-23", "completion_date": "2023-06-29", "has_results": false, "last_update_posted_date": "2023-10-03", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 10, "location_summary": "Los Angeles, California • Kissimmee, Florida • Chicago, Illinois + 7 more", "locations": [ { "city": "Los Angeles", "state": "California" }, { "city": "Kissimmee", "state": "Florida" }, { "city": "Chicago", "state": "Illinois" }, { "city": "Rochester", "state": "Minnesota" }, { "city": "Durham", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT05011370" }, { "nct_id": "NCT00260286", "title": "Effects of Gynecological Age on LH Sensitivity to Energy Availability", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Anovulation", "Amenorrhea", "Infertility", "Starvation" ], "interventions": [ { "name": "Energy availability", "type": "BEHAVIORAL" } ], "intervention_types": [ "BEHAVIORAL" ], "sponsor": "Ohio University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "18 Years", "maximum_age": "34 Years", "sex": "FEMALE", "summary": "18 Years to 34 Years · Female only" }, "enrollment_count": 18, "start_date": "2001-08", "completion_date": "2004-05", "has_results": false, "last_update_posted_date": "2005-12-05", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "Athens, Ohio", "locations": [ { "city": "Athens", "state": "Ohio" } ], "official_url": "https://clinicaltrials.gov/study/NCT00260286" }, { "nct_id": "NCT03655223", "title": "Early Check: Expanded Screening in Newborns", "overall_status": "ACTIVE_NOT_RECRUITING", "study_type": "OBSERVATIONAL", "phases": [], "conditions": [ "Spinal Muscular Atrophy", "Fragile X Syndrome", "Fragile X - Premutation", "Duchenne Muscular Dystrophy", "Hyperinsulinemic Hypoglycemia, Familial 1", "Diabetes Mellitus", "Adrenoleukodystrophy, Neonatal", "Medium-chain Acyl-CoA Dehydrogenase Deficiency", "Very Long Chain Acyl Coa Dehydrogenase Deficiency", "Beta-ketothiolase Deficiency", "Severe Combined Immunodeficiency Due to Adenosine Deaminase Deficiency", "Primary Hyperoxaluria Type 1", "Congenital Bile Acid Synthesis Defect Type 2", "Pyridoxine-Dependent Epilepsy", "Hereditary Fructose Intolerance", "Hypophosphatasia", "Hyperargininemia", "Mucopolysaccharidosis Type 6", "Argininosuccinic Aciduria", "Citrullinemia, Type I", "Wilson Disease", "Maple Syrup Urine Disease, Type 1A", "Maple Syrup Urine Disease, Type 1B", "Biotinidase Deficiency", "Neonatal Severe Primary Hyperparathyroidism", "Intrinsic Factor Deficiency", "Usher Syndrome Type 1D/F Digenic (Diagnosis)", "Cystic Fibrosis", "Stickler Syndrome Type 2", "Stickler Syndrome Type 1", "Alport Syndrome, Autosomal Recessive", "Alport Syndrome, X-Linked", "Carbamoyl Phosphate Synthetase I Deficiency Disease", "Carnitine Palmitoyl Transferase 1A Deficiency", "Carnitine Palmitoyltransferase II Deficiency", "Cystinosis", "Chronic Granulomatous Disease", "Cerebrotendinous Xanthomatoses", "Maple Syrup Urine Disease, Type 2", "Severe Combined Immunodeficiency Due to DCLRE1C Deficiency", "Thyroid Dyshormonogenesis 6", "Thyroid Dyshormonogenesis 5", "Supravalvar Aortic Stenosis", "Factor X Deficiency", "Hemophilia A", "Hemophilia B", "Tyrosinemia, Type I", "Fructose 1,6 Bisphosphatase Deficiency", "Glycogen Storage Disease Type I", "G6PD Deficiency", "Glycogen Storage Disease II", "Galactokinase Deficiency", "Mucopolysaccharidosis Type IV A", "Galactosemias", "Guanidinoacetate Methyltransferase Deficiency", "Agat Deficiency", "Glutaryl-CoA Dehydrogenase Deficiency", "Gtp Cyclohydrolase I Deficiency", "Hyperinsulinism-Hyperammonemia Syndrome", "Primary Hyperoxaluria Type 2", "3-Hydroxyacyl-CoA Dehydrogenase Deficiency", "Long-chain 3-hydroxyacyl-CoA Dehydrogenase Deficiency", "Mitochondrial Trifunctional Protein Deficiency", "Sickle Cell Disease", "Beta-Thalassemia", "Holocarboxylase Synthetase Deficiency", "3-Hydroxy-3-Methylglutaric Aciduria", "Primary Hyperoxaluria Type 3", "Hermansky-Pudlak Syndrome 1", "Hermansky-Pudlak Syndrome 4", "Apparent Mineralocorticoid Excess", "HSDB", "CBAS1", "Mucopolysaccharidosis Type 2", "Mucopolysaccharidosis Type 1", "Severe Combined Immunodeficiency, X Linked", "Severe Combined Immunodeficiency Due to IL-7Ralpha Deficiency", "Diabetes Mellitus, Permanent Neonatal", "Isovaleric Acidemia", "Severe Combined Immunodeficiency T-Cell Negative B-Cell Positive Due to Janus Kinase-3 Deficiency (Disorder)", "Jervell and Lange-Nielsen Syndrome 2", "Hyperinsulinemic Hypoglycemia, Familial, 2", "Diabetes Mellitus, Permanent Neonatal, With Neurologic Features", "Jervell and Lange-Nielsen Syndrome 1", "Lysosomal Acid Lipase Deficiency", "CblF", "3-Methylcrotonyl CoA Carboxylase 1 Deficiency", "3-Methylcrotonyl CoA Carboxylase 2 Deficiency", "Waardenburg Syndrome Type 2A", "Methylmalonic Aciduria cblA Type", "Methylmalonic Aciduria cblB Type", "Methylmalonic Aciduria and Homocystinuria Type cblC", "MAHCD", "Methylmalonic Aciduria Due to Methylmalonyl-CoA Mutase Deficiency", "Congenital Disorder of Glycosylation Type 1B", "Mthfr Deficiency", "Methylcobalamin Deficiency Type Cbl G (Disorder)", "Methylcobalamin Deficiency Type cblE", "Usher Syndrome, Type 1B", "N-acetylglutamate Synthase Deficiency", "Ornithine Transcarbamylase Deficiency", "Phenylketonurias", "Waardenburg Syndrome Type 1", "Congenital Hypothyroidism", "Propionic Acidemia", "Usher Syndrome, Type 1F", "Pancreatic Agenesis 1", "Hereditary Hypophosphatemic Rickets", "Glycogen Storage Disease IXB", "Glycogen Storage Disease IXC", "MOWS", "Epilepsy, Early-Onset, Vitamin B6-Dependent", "Pyridoxal Phosphate-Responsive Seizures", "Pituitary Hormone Deficiency, Combined, 1", "Ptsd", "Dihydropteridine Reductase Deficiency", "Severe Combined Immunodeficiency Due to RAG1 Deficiency", "Severe Combined Immunodeficiency Due to RAG2 Deficiency", "Retinoblastoma", "Multiple Endocrine Neoplasia Type 2B", "Pseudohypoaldosteronism, Type I", "Liddle Syndrome", "Biotin-Responsive Basal Ganglia Disease", "SCD", "DIAR1", "GSD1C", "Acrodermatitis Enteropathica", "Thyroid Dyshormonogenesis 1", "Riboflavin Transporter Deficiency", "Waardenburg Syndrome, Type 2E", "SRD", "Congenital Lipoid Adrenal Hyperplasia Due to STAR Deficiency", "Barth Syndrome", "Adrenocorticotropic Hormone Deficiency", "Transcobalamin II Deficiency", "Thyroid Dyshormonogenesis 3", "Segawa Syndrome, Autosomal Recessive", "Autosomal Recessive Nonsyndromic Hearing Loss", "Thyroid Dyshormonogenesis 2A", "Congenital Isolated Thyroid Stimulating Hormone Deficiency", "Hypothyroidism Due to TSH Receptor Mutations", "Usher Syndrome Type 1C", "Usher Syndrome Type 1G (Diagnosis)", "Von Willebrand Disease, Type 3", "Combined Immunodeficiency Due to ZAP70 Deficiency", "Adenine Phosphoribosyltransferase Deficiency", "Metachromatic Leukodystrophy", "Canavan Disease", "Menkes Disease", "Carbonic Anhydrase VA Deficiency", "Developmental and Epileptic Encephalopathy 2", "17 Alpha-Hydroxylase Deficiency", "Smith-Lemli-Opitz Syndrome", "Krabbe Disease", "Glutathione Synthetase Deficiency", "Mucopolysaccharidosis Type 7", "Rett Syndrome", "Molybdenum Cofactor Deficiency, Type A", "Niemann-Pick Disease, Type C1", "Niemann-Pick Disease Type C2", "Ornithine Aminotransferase Deficiency", "3-Phosphoglycerate Dehydrogenase Deficiency", "Leber Congenital Amaurosis 2", "Dravet Syndrome", "Mucopolysaccharidosis Type 3 A", "Ornithine Translocase Deficiency", "Carnitine-acylcarnitine Translocase Deficiency", "Glucose Transporter Type 1 Deficiency Syndrome", "Creatine Transporter Deficiency", "Niemann-Pick Disease Type A", "Pitt Hopkins Syndrome", "Tuberous Sclerosis 1", "Tuberous Sclerosis 2", "Ataxia With Isolated Vitamin E Deficiency", "Angelman Syndrome", "Prader-Willi Syndrome", "Homocystinuria", "Permanent Neonatal Diabetes Mellitus", "Transient Neonatal Diabetes Mellitus", "Factor VII Deficiency", "Glycogen Storage Disease Type IXA1", "Glycogen Storage Disease, Type IXA2", "Glycogen Storage Disease IC", "Glycogen Storage Disease Type IB", "Central Hypoventilation Syndrome With or Without Hirschsprung Disease" ], "interventions": [ { "name": "Confirmatory Testing", "type": "DIAGNOSTIC_TEST" } ], "intervention_types": [ "DIAGNOSTIC_TEST" ], "sponsor": "RTI International", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "1 Day", "maximum_age": "31 Days", "sex": "ALL", "summary": "1 Day to 31 Days" }, "enrollment_count": 30000, "start_date": "2018-10-15", "completion_date": "2026-12-31", "has_results": false, "last_update_posted_date": "2026-07-01", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "Research Triangle Park, North Carolina", "locations": [ { "city": "Research Triangle Park", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT03655223" }, { "nct_id": "NCT03263442", "title": "High Dose Intravenous Thiamine for the Prevention of Delirium in Allogeneic Hematopoietic Stem Cell Transplantation", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "PHASE2" ], "conditions": [ "Hematopoietic Stem Cell Transplantation", "Delirium", "Thiamine Deficiency" ], "interventions": [ { "name": "Thiamine", "type": "DRUG" }, { "name": "Normal saline", "type": "DRUG" } ], "intervention_types": [ "DRUG" ], "sponsor": "UNC Lineberger Comprehensive Cancer Center", "sponsor_class": "OTHER", "healthy_volunteers": false, "eligibility": { "minimum_age": "18 Years", "maximum_age": null, "sex": "ALL", "summary": "18 Years and older" }, "enrollment_count": 66, "start_date": "2017-10-16", "completion_date": "2020-08-10", "has_results": true, "last_update_posted_date": "2021-10-19", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "Chapel Hill, North Carolina", "locations": [ { "city": "Chapel Hill", "state": "North Carolina" } ], "official_url": "https://clinicaltrials.gov/study/NCT03263442" }, { "nct_id": "NCT04134013", "title": "Nutrient Nutritional Advise for Low Back Pain Patients Seeking Chiropractic Care", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Low Back Pain", "Nutrition Poor" ], "interventions": [ { "name": "Combination: Nutrition AND Chiropractic Adjustment", "type": "DIETARY_SUPPLEMENT" }, { "name": "Chiropractic Adjustment: Spinal Manipulation Therapy", "type": "OTHER" } ], "intervention_types": [ "DIETARY_SUPPLEMENT", "OTHER" ], "sponsor": "Parker University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "21 Years", "maximum_age": "65 Years", "sex": "ALL", "summary": "21 Years to 65 Years" }, "enrollment_count": 9, "start_date": "2019-10-14", "completion_date": "2020-11-26", "has_results": false, "last_update_posted_date": "2022-01-14", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "Plano, Texas", "locations": [ { "city": "Plano", "state": "Texas" } ], "official_url": "https://clinicaltrials.gov/study/NCT04134013" }, { "nct_id": "NCT03134417", "title": "Magnesium and Vitamin D Supplementation and Cardiometabolic Outcomes", "overall_status": "COMPLETED", "study_type": "INTERVENTIONAL", "phases": [ "NA" ], "conditions": [ "Overweight and Obesity", "Vitamin D Deficiency", "Magnesium Deficiency", "Cardiovascular Risk Factor" ], "interventions": [ { "name": "Vitamin D and magnesium", "type": "DIETARY_SUPPLEMENT" }, { "name": "Vitamin D", "type": "DIETARY_SUPPLEMENT" }, { "name": "Placebo", "type": "DIETARY_SUPPLEMENT" } ], "intervention_types": [ "DIETARY_SUPPLEMENT" ], "sponsor": "Drexel University", "sponsor_class": "OTHER", "healthy_volunteers": true, "eligibility": { "minimum_age": "30 Years", "maximum_age": "70 Years", "sex": "ALL", "summary": "30 Years to 70 Years" }, "enrollment_count": 109, "start_date": "2016-02-01", "completion_date": "2021-06-01", "has_results": false, "last_update_posted_date": "2021-09-27", "last_synced_at": "2026-10-20T07:26:10.866Z", "location_count": 1, "location_summary": "Philadelphia, Pennsylvania", "locations": [ { "city": "Philadelphia", "state": "Pennsylvania" } ], "official_url": "https://clinicaltrials.gov/study/NCT03134417" } ] }