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<p>In February 2025, the Food and Drug Administration (FDA) approved Ctexli (chenodiol) for cerebrotendinous xanthomatosis (CTX), a rare inborn bile acid metabolism disorder, with limited treatment options. CTX results from mutations in the CYP27A1 gene that impair bile acid synthesis and the harmful buildup of cholestanol in significant tissues, leading to severe neurological and systemic symptoms. Ctexli provides exogenous chenodeoxycholic acid (CDCA), which inhibits 7α-hydroxylase and reduces cholestanol levels in the tissues. Clinical trials have demonstrated that this drug improves bile acid synthesis and patients’ quality of life. CDCA has been authorized in Europe since 2017 (CDCA-Leadiant). The recent FDA approval of Ctexli marks a significant advancement in CTX treatment within the United States, offering new hope to patients and their families. Nevertheless, experience from Europe indicates that high pricing and reimbursement challenges may continue to affect real-world accessibility for patients.</p>

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FDA approves ctexli for cerebrotendinous xanthomatosis: a long-awaited breakthrough

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年11月19日

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  • Adan Tariq,
  • Rizwana Noor,
  • Aina Khushbakht Tariq

摘要

In February 2025, the Food and Drug Administration (FDA) approved Ctexli (chenodiol) for cerebrotendinous xanthomatosis (CTX), a rare inborn bile acid metabolism disorder, with limited treatment options. CTX results from mutations in the CYP27A1 gene that impair bile acid synthesis and the harmful buildup of cholestanol in significant tissues, leading to severe neurological and systemic symptoms. Ctexli provides exogenous chenodeoxycholic acid (CDCA), which inhibits 7α-hydroxylase and reduces cholestanol levels in the tissues. Clinical trials have demonstrated that this drug improves bile acid synthesis and patients’ quality of life. CDCA has been authorized in Europe since 2017 (CDCA-Leadiant). The recent FDA approval of Ctexli marks a significant advancement in CTX treatment within the United States, offering new hope to patients and their families. Nevertheless, experience from Europe indicates that high pricing and reimbursement challenges may continue to affect real-world accessibility for patients.