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7 Vitamin D Trials

Power is an online platform that helps thousands of patients discover FDA-reviewed trials every day. Every trial we feature meets safety and ethical standards, giving patients an easy way to discover promising new treatments in the research stage.

Frailty is an important clinical state that contributes to falls, hospitalization, institutionalization and death. When an individual simultaneously has many health problems, a frailty "tipping point" may be triggered by even a minor stressful event such as adding a new drug or urinary tract infection. Our research suggests that approximately 23% of Canadians over age 65 are frail, and by age 85 this estimate increases to over 40%. As we learn more about frailty and its consequences, there is an urgent need to develop community-based interventions that will prevent or delay frailty in older adults. Our proposed study will examine if frailty rehabilitation program is an effective community-based intervention to promote healthy aging. The primary objective of our study is to determine if 4-month frailty rehabilitation improves physical function compared with control and exercise alone in community-dwelling older adults living with frailty and sarcopenia. Secondary objectives of our study are to determine if 4-months of frailty rehabilitation can improve functional abilities and reduce healthcare utilization during a 6-month follow-up period compared with control and exercise alone. Results will translate the first Canadian model of frailty and sarcopenia rehabilitation and management.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:65+
Sex:All
324 Participants Needed
Neurogenic osteoporosis is a common complication of spinal cord injury (SCI) that is associated with low impact bone fractures. It is concerning that more than 46,000 Veterans affected with SCI and are at risk of osteoporosis and possible low impact fractures. About fifty percent of all individuals with SCI will develop low impact fracture in their life time. The management of osteoporosis-related fractures can impose substantial economic burden on the health care system, the individual and the families. Previous studies did not succeed in reversing the process of bone loss after SCI. In the present pilot study, we will evaluate the effect of Neuromuscular Electrical Stimulation Resistance Training in combination with oral Vitamin D supplementation, on bone quality in Veterans with chronic SCI, using a randomized experimental design.
No Placebo Group
Pivotal Trial
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Phase 2, 3
Age:18 - 65
Sex:All
7 Participants Needed
Infants The purpose of this study is to measure breastmilk's vitamin D sulfate nutritional value in infant's saliva and digesta (gut). Breastfeeding Mothers The purpose of this study is to measure Vitamin D sulfates in freshly expressed breastmilk samples before and after 28 days of Vitamin D supplementation in lactating mothers.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:1 - 60
Sex:All
60 Participants Needed
The VITamin D and OmegA-3 TriaL (VITAL; NCT 01169259) is a randomized clinical trial in 25,871 U.S. men and women investigating whether taking daily dietary supplements of vitamin D3 (2000 IU) or omega-3 fatty acids (Omacor® fish oil, 1 gram) reduces the risk of developing cancer, heart disease, and stroke in people who do not have a prior history of these illnesses. This ancillary study is being conducted among VITAL participants and will examine whether vitamin D or fish oil have effects upon A) autoimmune disease incidence, B) biomarkers of systemic inflammation, and C) chronic knee pain. Blood samples at baseline and in follow-up will be collected in a randomly selected subcohort of 1500 individuals and analyzed for changes in biomarkers of systemic inflammation: C-reactive protein, interleukin-6, and tumor necrosis factor-receptor 2. Approximately 1300 individuals with chronic, frequent knee pain will be followed with annual questionnaires to evaluate the effects of the supplements on chronic knee pain.
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Age:50+
Sex:All
25871 Participants Needed
Transitional formulas (22 kcal/oz) are recommended for infants less than 35 weeks gestation at birth. However, few data are available related to follow-up of infants receiving these formulas who were 28-34 weeks gestation at birth. Primary hypothesis: Provision of supplemental vitamin D to a transitional formula will lead to higher serum 25-hydroxyvitamin D (25-OHD) levels and no infant with a serum 25-OHD less than 20 ng/mL when assessed at approximately 52 weeks post-menstrual age (PMA).
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Age:All
Sex:All
39 Participants Needed
This trial is testing if healthy lifestyle changes, along with daily aspirin and vitamin D, can help prevent colorectal cancer from coming back in patients who have a small amount of cancer left after treatment. The goal is to see if these interventions can clear the remaining cancer cells and reduce the chance of it coming back. The study will measure how well these methods work over time. Aspirin has been shown in multiple studies to reduce the risk of colorectal cancer incidence, coming back, and death.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:18+
Sex:All
19 Participants Needed
The overarching purpose of this study is to determine if a modified 8-week mindfulness-based intervention (with a focus on self-compassion; MBSC) or 8 weeks of 2000 IU vitamin D supplementation will reduce stress and increase self-compassion in mothers of preterm infants and beneficially modify the human milk produced, and subsequently improve infant health.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 50
Sex:Female
500 Participants Needed
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Frequently Asked Questions

How much do clinical trials pay?

Each trial will compensate patients a different amount, but $50-100 for each visit is a fairly common range for Phase 2–4 trials (Phase 1 trials often pay substantially more). Further, most trials will cover the costs of a travel to-and-from the clinic.

How do clinical trials work?

After a researcher reviews your profile, they may choose to invite you in to a screening appointment, where they'll determine if you meet 100% of the eligibility requirements. If you do, you'll be sorted into one of the treatment groups, and receive your study drug. For some trials, there is a chance you'll receive a placebo. Across trials 30% of clinical trials have a placebo. Typically, you'll be required to check-in with the clinic every month or so. The average trial length is 12 months.

How do I participate in a study as a "healthy volunteer"?

Not all studies recruit healthy volunteers: usually, Phase 1 studies do. Participating as a healthy volunteer means you will go to a research facility several times over a few days or weeks to receive a dose of either the test treatment or a "placebo," which is a harmless substance that helps researchers compare results. You will have routine tests during these visits, and you'll be compensated for your time and travel, with the number of appointments and details varying by study.

What does the "phase" of a clinical trial mean?

The phase of a trial reveals what stage the drug is in to get approval for a specific condition. Phase 1 trials are the trials to collect safety data in humans. Phase 2 trials are those where the drug has some data showing safety in humans, but where further human data is needed on drug effectiveness. Phase 3 trials are in the final step before approval. The drug already has data showing both safety and effectiveness. As a general rule, Phase 3 trials are more promising than Phase 2, and Phase 2 trials are more promising than phase 1.

Do I need to be insured to participate in a medical study ?

Clinical trials are almost always free to participants, and so do not require insurance. The only exception here are trials focused on cancer, because only a small part of the typical treatment plan is actually experimental. For these cancer trials, participants typically need insurance to cover all the non-experimental components.

What are the newest clinical trials ?

Most recently, we added Vitamin D for Infants' Nutrition, Frailty Rehabilitation for Older Adults with Frailty and Lifestyle Changes + Aspirin + Vitamin D for Colorectal Cancer to the Power online platform.