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Phase

Phase NA 1Phase 4 1Phase 3 1Phase 1/2 1

Status

Completed 4Recruiting 1

Sponsor Class

OTHER 3NIH 1

Study Type

Interventional 4

Sponsor

Cancer Type

Gastrointestinal 4Breast 1

Conditions

Breast Neoplasms 18Prostatic Neoplasms 8Osteoporosis 8Vitamin D Deficiency 4Polycystic Ovary Syndrome 4Colonic Neoplasms 4Precursor Cell Lymphoblastic Leukemia-Lymphoma 3Neoplasms 3Colorectal Neoplasms 3Bone Diseases, Metabolic 3Obesity 2Neoplasm Metastasis 2Multiple Endocrine Neoplasia Type 1 2Lymphoma 2Lung Neoplasms 2Leukemia 2Inflammation 2Cardiovascular Diseases 2Carcinoma, Transitional Cell 2Brain Neoplasms 2Uterine Neoplasms 1Uterine Cervical Neoplasms 1Urinary Bladder Neoplasms 1Ureteral Neoplasms 1Thyroid Neoplasms 1Solid Cancers 1Sexual Dysfunction, Physiological 1Rectal Neoplasms 1Psoriasis 1Pancreatic Neoplasms 1

Interventions

Fluorouracil 128Leucovorin 120Oxaliplatin 101Irinotecan 89Bevacizumab 55Cetuximab 44Capecitabine 40Folfox protocol 29Panitumumab 22Colonoscopy 17Chemotherapy, Adjuvant 16Floxuridine 15Early Intervention, Educational 15Erlotinib Hydrochloride 13Surveys and Questionnaires 11IFL protocol 11Counseling 11Celecoxib 11Immunohistochemistry 10Gemcitabine 10Psychiatric Rehabilitation 9Methods 8Magnetic Resonance Spectroscopy 8Gene Expression Profiling 8Exercise 8Dexamethasone 8sargramostim 7Sorafenib 7Radiotherapy 7Nivolumab 7

Date Range

30 days90 days1 yearAll

Options

Has results Has announcements

Clinical Trials

4 trials
RecentStart dateEnrollment
Completed × Colonic Neoplasms × Vitamin D × Clear all
NCT05036109 2026-02-10

DAILY: Vitamin D, Aspirin, ExercIse, Low Saturated Fat Foods StudY in Colorectal Cancer Patients With Minimal Residual Disease

M.D. Anderson Cancer Center

Phase NA Completed
16 enrolled
Gastrointestinal

Colonic Neoplasms, Colorectal Neoplasms

NCT07241247 2025-11-21

Evaluation the of Role of Vitamin D Supplement on Tumor Response, Inflammation and Apoptosis in Patients With Stage II or III Colorectal Cancer Receiving Chemotherapy.

Tanta University

Phase 4 Completed
44 enrolled
Gastrointestinal

Colonic Neoplasms

NCT01150877 2017-03-03

High Dose Vitamin D Study

University of British Columbia

Phase 1/2 Completed
40 enrolled
Gastrointestinal

Colonic Neoplasms, Rectal Neoplasms, Colorectal Neoplasms

NCT00000611 2016-04-15

Women's Health Initiative (WHI)

National Heart, Lung, and Blood Institute (NHLBI)

Phase 3 Completed
BreastGastrointestinal

Bone Diseases, Breast Neoplasms, Cardiovascular Diseases, Colonic Neoplasms, Coronary Disease, Heart Diseases, Osteoporosis, Myocardial Ischemia

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