Summary
Dexamethasone has reached the approved stage (maximum clinical phase 4) for at least one indication, so its use in Psoriatic Arthritis would be drug repurposing rather than first-in-human development. This does not mean it is approved for Psoriatic Arthritis. ClinicalTrials.gov lists 1 registered trial linking Dexamethasone to Psoriatic Arthritis: 1 is currently recruiting. None of the registered studies carries a drug-development phase label, which is typical for behavioural, device and supplement protocols. It plans or enrolled 100 participants. Registered activity dates to 2025. No published literature item is linked to Dexamethasone and Psoriatic Arthritis in the OSMF database yet, so the record rests on registry entries alone. Registry entries describe intent to study, not outcomes.
The RepurpOS disease-intelligence file for Psoriatic Arthritis ranks 50 candidate therapeutics from Open Targets, ChEMBL, DGIdb and PubMed; only a minority carry direct clinical evidence, and this page covers one of those. Spontaneous remission context recorded for the condition: Spontaneous remission uncommon (<5%); progressive joint damage in 40-60% without adequate treatment; enthesitis, dactylitis, axial involvement accumulate over time.
Evidence table
| Evidence tier | A · Strong |
|---|---|
| Evidence score | 23.0 (trials 3.0, literature 0.0, tier 15, approved bonus 5.0) |
| Registered trials | 1 total: 1 recruiting, 0 active / not yet recruiting, 0 completed, 0 other |
| Linked publications | 0 |
| Agent type | Drug (Small molecule) |
| Development stage (any indication) | Approved |
| Mechanism / class | Not recorded |
| Data sources | DGIdb |
| Linked via biomarker / target | CD86 |
How the evidence score is calculated
- Each registered trial scores by status (recruiting / active / enrolling 3, completed 2.5, not yet recruiting 2, unknown 1, terminated / withdrawn / suspended 0.5) plus a phase bonus (phase 3-4 +2, phase 2 +1, phase 1 +0.5). The trial component is capped at 30.
- Each literature item scores by design (Cochrane review 5, meta-analysis 4, systematic review 3, RCT 3, clinical trial publication 2, curated reference 1.5, other PubMed record 1). The literature component is capped at 30.
- The existing evidence tier adds 15 (A / Strong), 10 (B / Moderate), 5 (C / Preliminary) or 0 (D / Anecdotal).
- Agents approved for any indication (max clinical phase 4) add 5, because an approved agent has an established safety profile that lowers the barrier to repurposing trials.
- The score ranks what has been studied, not what works. It does not read effect sizes or directions of effect.
Registered clinical trials
| NCT ID | Title | Status | Phase | Enrolment |
|---|---|---|---|---|
| NCT06842316 | Effects of Phytocannabinoids on Immune Response and Autophagy During Chronic Immune-mediated Inflammatory Diseases 2025 | recruiting | Not applicable | 100 |
Published literature
No publication is linked to this pair yet.
Mechanism and notes
No mechanism of action is recorded for this pair in the source databases.
OSMF's existing evidence tier for this pair is A (Strong), derived from the strength of the disease association recorded in DGIdb, in this case via the biomarker or target CD86. The tier describes how well the drug-disease link is documented, not how well the drug works.
Frequently asked questions
Is Dexamethasone approved for Psoriatic Arthritis?
Dexamethasone has reached the approved stage (maximum clinical phase 4) for at least one indication, so its use in Psoriatic Arthritis would be drug repurposing rather than first-in-human development. This does not mean it is approved for Psoriatic Arthritis. Approval status for the specific indication should always be confirmed with the relevant regulator and prescribing information.
Is Dexamethasone in clinical trials for Psoriatic Arthritis?
ClinicalTrials.gov lists 1 registered trial linking Dexamethasone to Psoriatic Arthritis: 1 is currently recruiting. None of the registered studies carries a drug-development phase label, which is typical for behavioural, device and supplement protocols. It plans or enrolled 100 participants. Registered activity dates to 2025.
What does the evidence show for Dexamethasone in Psoriatic Arthritis?
Trials of Dexamethasone in Psoriatic Arthritis are registered but none has completed, so there is no outcome evidence from those studies yet; the record is a signal of research interest. OSMF's existing evidence tier for this pair is A (Strong), derived from the strength of the disease association recorded in DGIdb, in this case via the biomarker or target CD86. The tier describes how well the drug-disease link is documented, not how well the drug works.
Cite this page
Data: ClinicalTrials.gov, PubMed, Open Targets, ChEMBL, DGIdb and the OSMF therapeutic agent database. Last updated 2026-07-06. Page built 2026-10-07.