Obesity and Early Biologic Failure in Psoriasis: An Italian Multicentre Retrospective Cohort Study - Scorecard - MDSpire
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Obesity and Early Biologic Treatment Failure in Psoriasis: A Retrospective Cohort Study Across Italian Centers

  • By

  • Jacopo Tartaglia

  • Massimo Donini

  • Carlo Garbo

  • Alessandro Gatti

  • Paolo Gisondi

  • Niccolò Romagnolo

  • Lorenzo Schiesari

  • Stefano Piaserico

  • October 13, 2026

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Clinical Scorecard: Obesity and Early Biologic Treatment Failure in Psoriasis: A Retrospective Multicentre Real-World Study

At a Glance

CategoryDetail
ConditionClinical topic addressed by the source article: Obesity and Early Biologic Treatment Failure in Psoriasis
Key MechanismsThe study assessed treatment persistence and discontinuation across TNF-α inhibitors, IL-17 inhibitors, and IL-23 pathway inhibitors, including ustekinumab.
Target PopulationPopulation described in the source article.
Care SettingCare setting described in the source article.

Key Highlights

  • Primary failure occurred in 17.0% of treatment lines among patients with obesity and 5.8% among those without obesity.
  • After multivariable adjustment, obesity was associated with primary failure (HR 2.75, 95% CI 1.59–4.77).
  • Higher BMI was associated with increased primary failure risk.
  • Obesity was not significantly associated with secondary failure or safety-related discontinuation.
  • Among patients with obesity, TNF-α inhibitors had the highest primary failure rate; IL-17 and IL-23 pathway inhibitors had lower adjusted risks than TNF-α inhibitors.

Guideline-Based Recommendations

Diagnosis

  • The study defined obesity as BMI ≥ 30 kg/m² and also evaluated BMI continuously per 5 kg/m² increment.

Management

  • The study examined biologic treatment classes but did not provide treatment recommendations.

Monitoring & Follow-up

  • Treatment persistence was assessed by therapy line, from biologic initiation to discontinuation or last available follow-up.
  • Discontinuation reasons were categorized as primary failure, secondary failure, or safety-related discontinuation.

Risks

  • Obesity was associated with higher risk of primary biologic failure after adjustment.
  • The study found no significant association between obesity and secondary failure or safety-related discontinuation.

Patient & Prescribing Data

Adults with plaque psoriasis receiving biologics in routine care; patients could contribute multiple treatment lines.

Among patients with obesity, TNF-α inhibitors had the highest primary failure rate, while IL-17 and IL-23 pathway inhibitors had lower adjusted risks than TNF-α inhibitors.

Clinical Best Practices

  • Interpret the findings in the context of a retrospective real-world cohort from five centers in one Italian region.
  • Distinguish primary failure from secondary failure and safety-related discontinuation when assessing treatment persistence.
  • The study reassessed baseline covariates at the start of each biologic treatment line.

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Original Source(s)

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