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HIV/AIDSPhase 1NCT03270709

Effect of High-Dose Vitamin D3 in Smokers and Non-Smokers With and Without HIV

A Phase 1 study testing Vitamin D3 450,000 IU orally in people with HIV/AIDS and Vitamin D Deficiency, run by Emory University at 2 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Supplementation with vitamin D improves HIV+ macrophages phagocytosis in vitro. There is evidence to suggest that administering vitamin D can in fact improve immune function in individuals. The study will evaluate the impact of high dose vitamin D in HIV+ smokers' and HIV- smokers' in vivo. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
HIV/AIDS, Vitamin D Deficiency, Smoker Lung
What is being tested?
Vitamin D3 450,000 IU orally
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
7 participants
Where
2 sitesUnited States
Study dates
11 Apr 2018to 15 Oct 2018
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Subjects living with HIV-1 infection who have been on anti-retroviral therapy (ART) for a minimum of 12 months and are followed longitudinally for their HIV healthcare;
  • Ability to give informed consent.

Who cannot join

  • Age <18 yrs old;
  • Known or possible pregnancy or breastfeeding;
  • Documented history of cirrhosis or a direct bilirubin ≥ 2.0 mg/dL;
  • Documentation of left ventricular ejection fraction < 40% or myocardial infarction within the past 6 months;
  • End-stage renal disease requiring dialysis or a serum creatinine ≥ 2 mg/d;
  • Spirometry with forced vital capacity (FVC) or forced expiratory volume (FEV1)< 70% of predicted value;
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  • Bleeding disorders such as thrombocytopenia or significant gastrointestinal bleeding within the past year;
  • Inability to undergo bronchoscopy safely;
  • High risk behaviors without known HIV status.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Atlanta VA Medical center

    Atlanta, Georgia, 30303

  • Grady Health System (non-CRN), Grady Health System (CRN), Ponce Center

    Atlanta, Georgia, 30303

Other trials in United States

About this study

Official title: Effect of High-Dose Vitamin D3 on Alveolar Macrophage Function, LL-37, and Oxidative Stress in Smokers and Non-Smokers With and Without HIV

Supplementation with vitamin D improves HIV+ macrophages phagocytosis in vitro. There is evidence to suggest that administering vitamin D can in fact improve immune function in individuals. The study will evaluate the impact of high dose vitamin D in HIV+ smokers' and HIV- smokers' in vivo. The primary goal is to improve innate immune host response to infection in patients already at high risk by virtue of HIV and smoking status.

Read the detailed description

Tobacco smoke suppresses the lung's ability to fight infection. Smoking is three times more prevalent in the HIV+ compared to HIV- patients. Viral load was found to be significantly increased in HIV+ smokers compared to HIV+ non-smokers, suggesting that smoking enhances HIV-1 viral replication in macrophages, which contributes to disease progression. Vitamin D deficiency has been associated with increased mortality in HIV+ persons, but there is limited research on how this is impacting the health of these highest risk patients and if aggressive repletion with vitamin D can improve overall health.The study team hypothesizes that vitamin D administration will increase pathogen clearance and improve innate immune function.

The proposed pre and post interventional study is designed to characterize alveolar macrophage function and lung immunity according to tobacco use and HIV status, and determine the impact of high dose oral vitamin D3 on AM phagocytic function and innate immunity.

Being tested
Vitamin D3 450,000 IU orally
Keywords
Vitamin D3, Pulmonary disease, Immunosuppression, HIV, Smoking
Medical subject headings
Acquired Immunodeficiency Syndrome, Vitamin D Deficiency, Lung Diseases, Smoking

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Vitamin D3 450,000 IU orallyDrug

    Study subjects will receive 2 tablets of vitamin D3 for a total of 450,000 IU by mouth.

Study groups in NCT03270709
Study groupRoleWhat they receive
HIV+ smokersExperimentalVitamin D3 450,000 IU orally
Receives: Drug: Vitamin D3 450,000 IU orally
HIV- non-smokersActive comparatorVitamin D3 450,000 IU orally
Receives: Drug: Vitamin D3 450,000 IU orally
HIV+ non-smokersActive comparatorVitamin D3 450,000 IU orally
Receives: Drug: Vitamin D3 450,000 IU orally
HIV- smokersActive comparatorVitamin D3 450,000 IU orally
Receives: Drug: Vitamin D3 450,000 IU orally

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Difference in alveolar macrophage (AM) phagocytic index between HIV+ smokers compared to HIV- non-smokers.

    A phagocytic index will be determined by challenging AM isolated from bronchoalveolar lavage (BAL) to Staph. Aureus in vitro.

    Measured: Day 1 of the study prior to vitamin D administration.

  2. Difference in phagocytosis percent positive between HIV+ smokers compared to HIV- non-smokers, prior to vitamin D administration.

    Difference in phagocytosis percent positive between HIV+ smokers compared to HIV- non-smokers will be calculated.

    Measured: Day 1 of the study prior to vitamin D administration.

  3. Difference in alveolar macrophage (AM) phagocytic index before and after vitamin D administration.

    A phagocytic index will be determined by challenging AM isolated from bronchoalveolar lavage (BAL) to Staph. Aureus in vitro.

    Measured: Day 1 of the study prior to vitamin D administration, Day 7 after vitamin D administration

Secondary outcomes (10)
  1. Difference in total and free vitamin D (25(OH) D) between HIV+ smokers compared to HIV- non-smokers, prior to vitamin D administration.

    Difference in total and free 25(OH) D between HIV+ smokers compared to HIV- non-smokers will be measure by ELISA (enzyme-linked immunosorbent assay) levels.

    Measured: Day 1 of the study prior to vitamin D administration.

  2. Difference in peptide LL-37 between HIV+ smokers compared to HIV- non-smokers, prior to vitamin D administration.

    Difference in an antimicrobial and immunostimulating/-modulating peptide LL-37 between HIV+ smokers compared to HIV- non-smokers will be calculated.

    Measured: Day 1 of the study prior to vitamin D administration.

  3. Difference in tumor necrosis factor alpha (TNF-α) between HIV+ smokers compared to HIV- non-smokers, prior to vitamin D administration.

    Difference in tumor necrosis factor alpha (TNF-α) - cytokine involved in systemic inflammation - between HIV+ smokers compared to HIV- non-smokers will be calculated .

    Measured: Day 1 of the study prior to vitamin D administration.

  4. Difference in messenger ribonucleic acid (mRNA) expression of LL-37 between HIV+ smokers compared to HIV- non-smokers, prior to vitamin D administration.

    Difference in mRNA expression of antimicrobial peptide LL-37 between HIV+ smokers compared to HIV- non-smokers will be calculated.

    Measured: Day 1 of the study prior to vitamin D administration.

  5. Difference in alveolar oxidative stress between HIV+ smokers compared to HIV- non-smokers, prior to vitamin D administration.

    Difference in alveolar oxidative stress between HIV+ smokers compared to HIV- non-smokers will be measured using AM isolated from bronchoalveolar lavage (BAL) .

    Measured: Day 1 of the study prior to vitamin D administration.

  6. Difference in total and free vitamin D (25(OH) D) before and after vitamin D administration.

    Difference in total and free vitamin D (25(OH) D) will be measure by ELISA (enzyme-linked immunosorbent assay)

    Measured: Day 1 of the study prior to vitamin D administration, Day 7 after vitamin D administration

  7. Difference in peptide LL-37 before and after vitamin D administration.

    Difference in peptide LL-37 levels will be calculated.

    Measured: Day 1 of the study prior to vitamin D administration, Day 7 after vitamin D administration

  8. Difference in tumor necrosis factor alpha (TNF-α) before and after vitamin D administration.

    Difference in tumor necrosis factor alpha (TNF-α) will be calculated.

    Measured: Day 1 of the study prior to vitamin D administration, Day 7 after vitamin D administration

  9. Difference in mRNA expression of LL-37 before and after vitamin D administration.

    Difference in mRNA expression of LL-37 will be calculated.

    Measured: Day 1 of the study prior to vitamin D administration, Day 7 after vitamin D administration

  10. Difference in alveolar oxidative stress before and after vitamin D administration.

    Difference in alveolar oxidative stress will be measured using AM isolated from bronchoalveolar lavage (BAL) .

    Measured: Day 1 of the study prior to vitamin D administration, Day 7 after vitamin D administration

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted1 Sep 2017
  2. Study start11 Apr 2018
  3. Primary completion15 Oct 2018
  4. Study completion15 Oct 2018

Why it stopped: Study terminated early due to lack of funding and the COVID-19 pandemic.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Parallel groups
Model description
A total of 44 subjects (11 per group, smokers and non-smokers, HIV+, HIV-) will be enrolled.
Masking
None (open label)
Enrolment
7 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03270709
Sponsor's protocol ID
IRB00094833
Status last verified
Apr 2021
First submitted
31 Aug 2017
Last updated
21 Apr 2021
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
Undecided

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Vitamin D3 450,000 IU orally in people with HIV/AIDS and Vitamin D Deficiency, run by Emory University at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 21 Apr 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Study terminated early due to lack of funding and the COVID-19 pandemic.). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Difference in alveolar macrophage (AM) phagocytic index between HIV+ smokers compared to HIV- non-smokers. (time frame: Day 1 of the study prior to vitamin D administration.). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Apr 2021.

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