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Possible pharmacogenetic factors in clozapine treatment failure: a case report

Eromona Whiskey1, Graziella Romano2, Matilda Elliott2

  • 1Pharmacy Department, South London and Maudsley NHS Foundation Trust, Denmark Hill, London, SE5 8AZ, UK.

Therapeutic Advances in Psychopharmacology
|February 25, 2022
PubMed

Insights

Predicting treatment response in psychiatry is crucial. For refractory schizophrenia, clozapine is effective for only half of patients, necessitating further research into treatment failure and personalized approaches.

Area of Science:

  • Psychiatry
  • Pharmacology
  • Genetics

Background:

  • Predicting therapeutic response in psychiatry remains challenging, particularly for refractory psychotic disorders.
  • Clozapine is the gold standard treatment for refractory schizophrenia, yet response rates are suboptimal, affecting approximately 50% of patients.
  • Understanding the biological underpinnings of treatment non-response is critical for advancing precision psychiatry.

Observation:

  • This case report investigates potential biological mechanisms contributing to clozapine treatment failure in refractory schizophrenia.
  • The study highlights the limited efficacy of clozapine in a significant portion of patients with severe psychotic disorders.

Findings:

  • Biological mechanisms underlying treatment failure to clozapine require further elucidation.
  • Identifying predictors of non-response is essential for optimizing treatment strategies.

Implications:

  • Personalized treatment approaches, including therapeutic drug monitoring and early pharmacogenetic testing, may improve outcomes for non-responsive patients.
  • Further research is needed to fully understand and address clozapine treatment resistance in schizophrenia.
  • Advances in precision psychiatry are vital for improving clinical outcomes in complex psychiatric conditions.
Keywords:
case reportclozapinepharmacogeneticsplasma levelschizophreniatherapeutic drug monitoring

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