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Nail psoriasis

1 published article · Updated continuously

Clinical Trial Landscape

Clinical Trials for Nail psoriasis

7 trials tracked for Nail psoriasis: 6 in phase 3 or 4 and 1 with published results. The most-cited published study has 37 citations.

7Trials tracked
6Phase 3 & 4
0Recruiting
1With published results
Phase distribution
Phase 4 3 Phase 3 3 Other / NA 1
  1. Phase 3 Comparison of Indigo Naturalis Oil Extract and Calcipotriol Solution in Treating Psoriasis Completed · 37 cited
  2. Phase 4 Benefit of Placebo and Different Concentrations of Triamcinolone Acetonide in Nail Psoriasis Completed
  3. Phase 4 A Study Evaluating the Efficacy and Tolerability of Enstilar Foam in Patients With Nail Psoriasis Completed
  4. Phase 4 Effects of Etanercept on Nail Psoriasis and Plaque Psoriasis Completed
  5. Phase 3 A Study to Evaluate the Safety and Efficacy of Adalimumab in Subjects With Chronic Plaque Psoriasis and Nail Psoriasis Completed
  6. Phase 3 Evaluation of the Efficacy and Safety of Indigo Naturalis Oil Extract on Psoriatic Nails Completed
Show 1 more trials
  1. N/A 308nm Excimer Laser for Treatment of Fingernail Psoriasis Completed

Showing the 7 most-cited and recently-updated of 7 trials. Browse the full registry →

Trial data sourced from ClinicalTrials.gov. Counts describe the research landscape and are not a treatment recommendation. Informational only — not medical advice.

What the trials found For clinicians

Nail psoriasis: what the trials found

Systemic treatments have demonstrated significant improvements in nail psoriasis severity. Etanercept resulted in a substantial reduction in both target fingernail NAPSI scores (-4.32, -4.36) and overall NAPSI scores (-22.64, -22.63) (p<0.0001), with over 80% of participants achieving at least a 50% improvement in target fingernail NAPSI by week 24 (p<0.001) 3.

Adalimumab showed significant efficacy compared to placebo, with a -56.2% change from baseline in total fingernail NAPSI scores at week 26 (p<0.001). Furthermore, 46.6% of patients achieved an mNAPSI 75 response and 48.9% achieved a 'clear' or 'minimal' physician global assessment of fingernails 5.

Topical and botanical interventions have also been evaluated. Enstilar Foam showed a modified mNAPSI score of 18 at week 24 1. Indigo Naturalis Extract in Oil demonstrated improvements in shNAPSI scores ranging from 14.4 to 27.4 over 24 weeks [4, 6].

Recent results — preliminary, needs further review

  • 308 nm excimer laser showed modified NAPSI scores of 6.3 and 6.0 (not yet corroborated).

For the clinician treating this condition

  • Etanercept is associated with significant reductions in both target fingernail and overall nail psoriasis severity indices, with high rates of clinical improvement at 24 weeks.
  • Adalimumab significantly outperforms placebo in reducing NAPSI scores and achieving 'clear' or 'minimal' global assessments of fingernails by week 26.
  • Topical options like Enstilar Foam and botanical extracts such as Indigo Naturalis have been shown to impact nail psoriasis severity scores.

AI synthesis of 3 cited trials, updated Jul 25, 2026. Informational only — not medical advice; trial data sourced from ClinicalTrials.gov. How we use AI.

HCP Mode — summaries include clinical detail, trial data, and statistical outcomes.
Patient Mode — summaries use plain language, avoiding clinical jargon.