Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Could vitamin d boost immunity in black prostate cancer patients?

NCT ID NCT05045066

Knowledge-focused Sponsor: Mayo Clinic Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study is looking at how common low vitamin D levels are among Black men with prostate cancer, and whether vitamin D supplements can improve their immune function. Researchers will measure vitamin D and immune markers in blood samples before and after supplementation. The goal is to understand if correcting vitamin D insufficiency helps the immune system work better.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
Vitamin D3 (cholecalciferol)
What this could lead to
If successful, this study could show that correcting vitamin D insufficiency improves immune function in Black prostate cancer patients, potentially pointing toward a simple way to support their health.
What could go wrong
This is an early-phase study with a small number of participants, so results may not apply broadly. It is designed to gather information, not to test a treatment for cancer itself.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Phase

Early phase 1

The earliest testing in people: a first look at safety, in a very small group.

Participants

About 220 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2021

Expected to finish

Aug 2029

An estimate. End dates often move.

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Ages

18 years and older

Sex

Male participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Pre-Registration: * African American males, age \>= 18 years * Patients with a previous history of localized or metastatic or locally recurrent prostate cancer * Registration: * Patients with Vitamin D levels below 30 ng/ml Exclusion Criteria: * Pre-Registration: * Known hypersensitivity to vitamin D * End stage renal failure on dialysis * Liver cirrhosis * Currently taking a vitamin D or multivitamin supplement, that has more than 400 IU/10mcg of vitamin D daily for the past month * Legal inability or restricted legal ability, medical or psychological conditions not allowing proper study completion or informed consent signature * Chemotherapy or surgery or radiation within the last 3 weeks prior to blood collection * History of hypercalcemia * Registration: * Chemotherapy or surgery or radiation within the last 3 weeks prior to blood collection

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Localized prostate carcinoma are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

metastatic prostate carcinoma prostate cancer prostate carcinoma

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Localized prostate carcinoma Locally recurrent prostate carcinoma Metastatic prostate carcinoma Stage IV prostate cancer ajcc V8

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The study's own enquiry address

    This study publishes an address for enquiries. See it below .

  2. The places running it

    2 sites. The list below names each one and where it is.

  3. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  4. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Study contacts

  • Contact

    Email: •••••@•••••

Locations

  • Mayo Clinic in Arizona

    RECRUITING

    Scottsdale, Arizona, 85259, United States

    Contact Email: •••••@•••••

  • Mayo Clinic in Florida

    RECRUITING

    Jacksonville, Florida, 32224-9980, United States

    Contact Email: •••••@•••••

More trials for these conditions

Other studies related to the condition(s) this trial covers.