Clinical Trials Logo
  1. Home
  2. Vitamin D Deficiency
  3. NCT01385085
  4. Details
NCT01385085 Clinical Trial

Impact of Work Environment Absent of Natural Light on Vitamin D Levels

Vitamin D Deficiency Clinical Trial

Official title:
Impact of Work Environment Absent of Natural Light on Vitamin D Levels

Clinical Trial Details — Status: Not yet recruiting

Administrative data
NCT number NCT01385085
Other study ID # 922-2010-IDF-CTIL
Secondary ID
Status Not yet recruiting
Phase N/A
First received June 28, 2011
Last updated June 28, 2011
Start date November 2011

Study information
Verified date June 2011
Source Medical Corps, Israel Defense Force
Contact n/a
Is FDA regulated No
Health authority Israel: Israeli Health Ministry Pharmaceutical Administration
Study type Observational

Clinical Trial Summary

Three types of workers exposed to different levels of natural sunlight will be tested for Vitamin D blood level, PTH, Ca, P, albumin and alkaline phosphatase.

In addition, each tested worker will be asked to fill a questionnaire for demographic, medical and personal habit information.

Recruitment information / eligibility
Status Not yet recruiting
Enrollment 300
Est. completion date
Est. primary completion date
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 18 Years to 45 Years
Eligibility Inclusion Criteria:

- people employed in their current work place at least 6 months,

Exclusion Criteria:

- people who consume food additives containing Vitamin D.

- people who have a chronic illness which harms the Vitamin D absorption, such as Celiac, chronic Pancreatitis, Cystic Fibrosis and IBS.

- people who have a chronic illness which harms Vitamin D metabolism, such as chronic hepatitis, kidney insufficiency and Nephrotic Syndrome.

- pregnant women.

- people who require prescribed medicine like steroids, anti-convulsion, and HIV treatments.

Study Design

Observational Model: Case-Crossover, Time Perspective: Cross-Sectional

Related Conditions & MeSH terms

Locations
Country Name City State
n/a

Sponsors (1)
Lead Sponsor Collaborator
Medical Corps, Israel Defense Force
See also
  Status Clinical Trial Phase
Active, not recruiting NCT04244474 - Effect of Vitamin D Supplementation on Improvement of Pneumonic Children Phase 1/Phase 2
Recruiting NCT05459298 - ViDES Trial (Vitamin D Extra Supplementation) N/A
Completed NCT04476511 - The Efficacy and the Safety of Vitamin D3 30,000 IU for Loading Dose Schedules Phase 3
Suspended NCT03652987 - Endocrine and Menstrual Disturbances in Women With Polycystic Ovary Syndrome (PCOS)
Completed NCT03920150 - Vitamin D 24'000 IU for Oral Intermittent Supplementation Phase 3
Completed NCT03264625 - The Effects of Oral Vitamin D Supplementation on the Prevention of Peritoneal Dialysis-related Peritonitis Phase 2
Completed NCT04183257 - Effect of Escalating Oral Vitamin D Replacement on HOMA-IR in Vitamin D Deficient Type 2 Diabetics Phase 4
Recruiting NCT05084248 - Vitamin D Deficiency in Adults Following a Major Burn Injury Phase 4
Completed NCT05506696 - Vitamin D Supplementation Study N/A
Completed NCT00092066 - A Study to Evaluate the Safety, Tolerability, and Efficacy of an Investigational Drug and Dietary Supplement in Men and Postmenopausal Women With Osteoporosis (0217A-227) Phase 3
Completed NCT03234218 - Vitamin D Levels in Liver Transplantation Recipients Prospective Observational Study
Completed NCT02714361 - A Study to Investigate the Effect of Vitamin D3 Supplementation on Iron Status in Iron Deficient Women N/A
Completed NCT02906319 - Vitamin D and HbA1c Levels in Diabetic Patients With CKD N/A
Completed NCT03203382 - Corneal Nerve Structure in Sjogren's
Completed NCT02118129 - Vitamin D Among Young Adults: an Intervention Study Using a Mobile 'App'. N/A
Completed NCT02275650 - The Role of Narrowband Ultraviolet B Exposure in the Maintenance of Vitamin D Levels During Winter N/A
Completed NCT02187146 - The Effects of Serum Vitamin D and IVF Outcome N/A
Not yet recruiting NCT01419821 - Vitamin D and Its Affect on Growth Rates and Bone Mineral Density Until Age 5 N/A
Completed NCT01741181 - Vitamin D Supplementation in Patients With Diabetes Mellitus Type 2 Phase 4
Completed NCT01651000 - Safety and Efficacy of CTAP101 to Treat Secondary Hyperparathyroidism in Stage 3 or 4 CKD and Vitamin D Insufficiency Phase 3