Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.
NCT03662685 · ClinicalTrials.gov registry record · Phase 1
Immunogenetic Profiling of Goeckerman Therapy in the Treatment of Psoriasis Vulgaris
A Phase 1 study, sponsored by University of California, San Francisco.
- Terminated
- Registry status
- Phase 1
- Development phase
- 4
- Enrollment target
NCT03662685: Clinical Trial Phase 1 study, sponsored by University of California, San Francisco.
NCT03662685 is a Phase 1 study that was terminated before completion, run by University of California, San Francisco. The registered enrollment target is 4 participants, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (93% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03662685, a Phase 1 study, was terminated before completion, sponsored by University of California, San Francisco.
- TERMINATED
- Registry status
- Phase 1
- Development phase
- 4 participants
- Enrollment target
Study Summary
This study examines the effect of Goeckerman therapy (a combination of phototherapy and topical crude coal tar), crude coal tar alone, and phototherapy alone on the immunologic and genetic environment within psoriatic skin lesions.
Primary Outcome
Perform quantitative analysis of the immunologic and genetic changes in immune cell populations after treatment with traditional Goeckerman (NBUVB + coal tar), coal tar only, and NB-UVB only, at weeks 2, 4, and 12 compared to baseline week 0. The immunologic profiles will be compared between subjects receiving the traditional Goeckerman therapy (NB-UVB + coal tar), coal tar only, and NB-UVB therapy only.
Interventions
- OTHER Goeckerman Therapy
- DRUG Crude Coal Tar Only
- DEVICE Phototherapy Only
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 4 participants |
| Start Date | 2018-08-01 |
| Est. Completion | 2024-05-31 |
| Phase | Phase 1 |
Why NCT03662685 stopped before completion
NCT03662685 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 4 participants, a relatively small participant target, below the 60-participant average among 29,502 other Phase 1 trials with a reported enrollment target (93% lower).
The record links to 0 conditions, and to 3 interventions - of which Goeckerman Therapy is the first listed.
NCT03662685 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03662685 about?
NCT03662685 is a clinical study titled "Immunogenetic Profiling of Goeckerman Therapy in the Treatment of Psoriasis Vulgaris". This study examines the effect of Goeckerman therapy (a combination of phototherapy and topical crude coal tar), crude coal tar alone, and phototherapy alone on the immunologic and genetic environment within psoriatic skin lesions.
What is the current status of trial NCT03662685?
This trial is currently terminated. It is a Phase 1 study. The enrollment target is 4 participants. The study started on 2018-08-01. Estimated completion is 2024-05-31.
What interventions are being tested in trial NCT03662685?
The interventions under investigation include: Goeckerman Therapy (OTHER), Crude Coal Tar Only (DRUG), Phototherapy Only (DEVICE).
Who is sponsoring clinical trial NCT03662685?
This trial is sponsored by University of California, San Francisco, which has 1,713 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03662685's enrollment target sits among peer trials
4 1995th of 2000 higher than 2 of 2,000 other Phase 1 trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other Phase 1 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
Nationwide trials with similar profiles
Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.
Similar registry start date
- NCT05962346 · started 2026-12 · NA
Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia
- NCT07125183 · started 2026-12 · Phase 2
Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma
- NCT07292298 · started 2026-11 · Phase 2
Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates
- NCT04263285 · started 2026-10 · NA
Treatment of Depression Post-SCI