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CompletedNCT00451243Updated Mar 23, 2007

Differential Clinical and Serologic Response in Psoriasis and Psoriatic Arthritis to Drug Treatment

An observational study in Psoriatic Arthritis, sponsored by National Taiwan University Hospital. Completed. Per ClinicalTrials.gov, last updated 2007-03-23.

Sponsored by National Taiwan University Hospital · Observational

Study type
Observational
Model
Case-control
Time perspective
Other
Enrollment
20
Sex
All
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Study summary

Psoriasis is a multifactorial cutaneous disorders which affects about 100000 patients in Taiwan. Psoriatic arthritis is also present in about 20\~30 percents. Many drugs have been shown to aggravate psoriasis including drugs used in the treatment of psoriatic arthritis. On the contrary, anti-psoriatic drugs are also known to aggravate or induce psoriatic arthritis. Psoriasis and psoriatic arthritis are believed to share the same pathogenic lymphocytes, but the differential responses to drugs are intriguing. This also causes problems in the treatment of psoriasis and psoriatic arthritis. Recently different serologic markers have been found for the assessment of psoriasis and psoriatic arthritis. Recent genetic study showed a different genetic susceptibility genes. We tested the serologic responses of three new biologic drugs used in the treatment of psoriasis and psoriatic arthritis. Paired blood samples of the same patients before and after 12 weeks of treatment were used. IL6 decreased after alefacept and etanercept but was increased after efalizumab treatment without statistical significance (Paired t test: 0.3336、0.2773、0.5904)。IL-8 decreased after etanercept but increased after efalizumab and alefacept without statistical significance (Paired t test: 0.4031、0.6749、0.2998)。IL10 decreased after efalizumab and etanercept, but increased significantly after alefacept treatment (Paired t test: 0.7254、0.5123、0.0350)。None of the treatment has a significant effect on TNF-alpha. HC10 decreased after alefacept and efalizumab,but increased after etanercept treatmentwithout statistical significance (Paired t test: 0.6589、0.1576、0.1988).

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Conditions studied

  • Psoriatic Arthritis

Keywords

  • psoriatic arthritis
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In context

Arthritis

3,554 studies on the registry are indexed under Arthritis; 317 are open to participants now.

This study's enrollment of 20 is below the median of 155 across 1,057 observational studies indexed under Arthritis.

Browse Arthritis studies →

Lead sponsor

National Taiwan University Hospital is the lead sponsor of 2,563 studies on the registry; 569 are open to participants now.

Of its 11 completed or terminated interventional studies of FDA-regulated products, 2 (18%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  • Clinical diagnosis of psoriasis
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Study design

Observational model
Case-control
Time perspective
Other
Enrollment
20 participants
06

Study locations

No study locations are listed for this record.

07

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 23, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00451243
Lead sponsor
National Taiwan University Hospital
First posted
Mar 23, 2007
Start date
Jan 2005
Completion
Jun 2005
Last update
Mar 23, 2007

Study contacts

TSEN-FANG Tsai
study chair · TSEN-FANG Tsai
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2004. You cannot join it, but the record below documents what was studied.

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