Triamcinolone With Vitamin D Synergistic Efficacy in Psoriasis

February 17, 2026 updated by: Wright State University
These studies are designed to assess the synergistic efficacy of topical 0.1% triamcinolone cream paired with 40,000 IU of oral vitamin D3 daily in treating mild to moderate psoriasis. The study is designed to have all subjects treated with triamcinolone cream (TAC) for 4 weeks, then will be randomized 1:1 into vitamin D3 or placebo for an additional 12 weeks. At that time, the study will become open-label and all subjects will be placed on (or continue) vitamin D3 for an additional 12 weeks. The study will take place over 28 weeks total.

Study Overview

Study Type

Interventional

Enrollment (Estimated)

24

Phase

  • Early Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

    • Ohio
      • Fairborn, Ohio, United States, 45324
        • Recruiting
        • Wright State Physicians

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age 18 and older
  • Mild to severe plaque psoriasis (2% or greater Body Surface Area; Psoriasis Area and Severity Score of 2 or greater; Investigator Grade Assessment of mild-severe)

Exclusion Criteria:

  • Currently taking medication that alters the normal ion balance of low-dose in blood.
  • No calcium supplements 1 month prior to baseline (not including multivitamins).
  • Unstable or uncontrolled illness, including but not limited to cerebro-cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, hematologic, neurologic or psychiatric disease at screening.
  • Abnormal laboratory values at screening, that in the opinion of the investigator, would potentially affect patient safety or data integrity.
  • Not on systemic non-biologic therapy (including, but not limited to, oral psoralen plus ultraviolet A [photochemotherapy (PUVA)] light therapy; cyclosporine; corticosteroids; methotrexate; oral retinoids; apremilast; tofacitinib; mycophenolate mofetil; thioguanine; hydroxyurea; sirolimus; tacrolimus; azathioprine; leflunomide; fumaric acid derivatives; or 1, 25 dihydroxy vitamin D3 and analogues) within 28 days prior to baseline.
  • No phototherapy (including either oral and topical PUVA light therapy, ultraviolet B, excimer laser, or self-treatment with tanning beds or therapeutic sunbathing) within 28 days prior to baseline.
  • No topical treatment (including, but not limited to, corticosteroids [upper mid strength or lower potency topical steroids are permitted on the intertriginous areas and face], crisaborole, anthralin, calcipotriene, topical vitamin D derivatives, retinoids, tazarotene, pimecrolimus, tacrolimus, emollients and other nonprescription topical products containing urea, >3% salicylic acid, alpha- or beta-hydroxyl acids, or medicated shampoos [for example those that contain >3% salicylic acid, corticosteroids, coal tar, or vitamin D3 analogues]) within 14 days prior to baseline.
  • No biologic agents within 8 weeks or three half-lives, whichever is greater prior to baseline.
  • History of renal impairment.
  • History of renal stones.
  • History of parathyroid abnormalities
  • Osteoporosis
  • History of severe arthritis
  • Ongoing use of tanning bed or other UV device or excessive sunlight
  • Unable to understand/complete informed consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Sequential Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Triamcinolone Cream + Vitamin D3
This arm will continue to take Vitamin D3 at Week 16 to Week 28.
Triamcinolone 0.1% daily
40,000 IU Vitamin D3 daily
Placebo Comparator: Triamcinolone Cream + Placebo
Starting at Week 16, this arm will be given Vitamin D3 to take until Week 28.
Placebo daily
Triamcinolone 0.1% daily
40,000 IU Vitamin D3 daily

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Improvement in Psoriasis Area and Severity Score (PASI) from baseline
Time Frame: Week 28
Subjects achieving a 50% improvement from baseline (PASI 50)
Week 28
Improvement in Investigator Grade Assessment (IGA) from baseline
Time Frame: Week 28
Subjects achieving a 1 point reduction from baseline
Week 28
Improvement in Body Surface Area (BSA) from baseline
Time Frame: Week 28
Subjects achieving a 50% reduction from baseline
Week 28

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Complete Metabolic Profile Values From Baseline Due to the Combination of Topical Triamcinolone Cream and Oral Vitamin D3
Time Frame: Week 28
Assess change through complete metabolic profile laboratory values
Week 28
Change in Parathyroid Hormone Level Values From Baseline Due to the Combination of Topical Triamcinolone Cream and Oral Vitamin D3
Time Frame: Week 28
Assess change through parathyroid hormone level laboratory values
Week 28
Change in 25-Hydroxyvitamin D Values From Baseline Due to the Combination of Topical Triamcinolone Cream and Oral Vitamin D3
Time Frame: Week 28
Assess change through 25-Hydroxyvitamin D laboratory values
Week 28

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Jeffrey B Travers, MD, PhD, Wright State University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

October 16, 2019

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Study Registration Dates

First Submitted

May 17, 2019

First Submitted That Met QC Criteria

July 25, 2019

First Posted (Actual)

July 29, 2019

Study Record Updates

Last Update Posted (Actual)

February 19, 2026

Last Update Submitted That Met QC Criteria

February 17, 2026

Last Verified

February 1, 2026

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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