Related Experiment Video
Updated: May 29, 2026

The Goeckerman Regimen for the Treatment of Moderate to Severe Psoriasis
Published on: July 11, 2013
Weekly vs. daily administration of oral methotrexate (MTX) for generalized plaque psoriasis: a randomized controlled
Mohammad Radmanesh1, Behnam Rafiei, Zahra-Beigum Moosavi
1Department of Dermatology, Jondishapour University of Medical Sciences, Ahvaz, Iran. radmanesh_m@yahoo.com
Unlabelled:
Methotrexate (MTX) treatment for psoriasis is most often administered weekly, because the drug has been considered more hepatotoxic when taken daily. However, some patients may tolerate smaller, more frequent doses better.
Objective:
To study the efficacy and toxicity of daily vs. weekly MTX.
Patients And Methods:
In a randomized controlled trial, 101 patients with generalized plaque psoriasis received oral MTX 2.5 mg daily for weeks, 4 weeks and monthly for a total of 4 months. Changes in PASI scores were classified into three categories: >75% improvement was considered significant; 25-75% moderate; and <25% poor.
Results:
Sixty Group 1 patients and 81 Group 2 patients showed a significant response (P-value 0.001); 19 patients in Group 1 and 14 in Group 2 responded moderately; 22 patients in Group 1 and six patients from Group 2 responded poorly. Forty-five patients in Group 1 and 33 in Group 2 developed transient increases in liver enzymes (P-value 0.11). Nausea, headache, fatigue, and gastrointestinal upset were noted in four Group 1 patients and 30 Group 2 patients (P-value 0.0001).
Conclusion:
Nausea, vomiting, headache, and fatigue were significantly less common side effects in our patients who received MTX daily, but liver enzyme abnormalities were less common, and clinical efficacy was greater in the patients who received MTX weekly.
Insights
Daily methotrexate (MTX) showed fewer side effects like nausea and fatigue in psoriasis patients. However, weekly MTX demonstrated greater clinical efficacy and fewer liver enzyme abnormalities.
Area of Science:
- Dermatology
- Pharmacology
- Clinical Trials
Background:
- Methotrexate (MTX) is a common psoriasis treatment, typically administered weekly due to concerns about daily dosing and hepatotoxicity.
- Some patients may experience better tolerance with smaller, more frequent doses of MTX.
Purpose of the Study:
- To compare the efficacy and toxicity of daily versus weekly oral methotrexate administration in patients with generalized plaque psoriasis.
Main Methods:
- A randomized controlled trial involving 101 patients with generalized plaque psoriasis.
- Patients received oral MTX 2.5 mg daily or weekly for 4 months.
- Efficacy was assessed by changes in Psoriasis Area and Severity Index (PASI) scores.
Main Results:
- Weekly MTX showed greater clinical efficacy, with more patients achieving significant PASI score improvement compared to daily dosing.
- Transient increases in liver enzymes were observed in 45 patients on daily MTX and 33 on weekly MTX (P=0.11).
- Adverse effects such as nausea, headache, fatigue, and gastrointestinal upset were significantly less common in the daily MTX group (4 patients) compared to the weekly group (30 patients) (P=0.0001).
Conclusions:
- Daily MTX administration resulted in significantly fewer gastrointestinal and systemic side effects compared to weekly dosing.
- Weekly MTX demonstrated superior clinical efficacy and a trend towards fewer liver enzyme abnormalities.
- The choice between daily and weekly methotrexate for psoriasis should consider individual patient tolerance and treatment goals.
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