Stock Markets January 23, 2026

Bausch Health Shares Tumble Following Unsuccessful Hepatic Encephalopathy Trials

Phase 3 RED-C clinical program fails to meet primary endpoint in liver cirrhosis patients, prompting strategic reassessment

By Derek Hwang BHC
Bausch Health Shares Tumble Following Unsuccessful Hepatic Encephalopathy Trials
BHC

Bausch Health's stock experienced an 8% decline after the pharmaceutical firm disclosed that its Phase 3 trials investigating amorphous-rifaximin SSD for preventing initial hepatic encephalopathy episodes in adults with liver cirrhosis did not achieve the primary efficacy goals. Despite the trials demonstrating the drug's safety and tolerability, the lack of efficacy has led the company to review future developmental pathways while reaffirming commitment to hepatology and related therapeutic areas.

Key Points

  • Bausch Health’s Phase 3 RED-C clinical program did not meet its primary efficacy endpoint despite confirming the safety and tolerability of amorphous-rifaximin SSD for hepatic encephalopathy prevention in liver cirrhosis patients.
  • The RED-C program involved extensive global clinical trials with over 1,000 patients across numerous sites internationally, targeting a critical unmet medical indication where no approved treatment currently exists.
  • Cirrhosis and its complication, hepatic encephalopathy, remain significant health threats, with cirrhosis being the ninth leading cause of death in the U.S., underscoring the importance of therapeutic advancements in this area.
Bausch Health's stock price dropped sharply by 8% on Friday morning following the release of unfavorable outcomes from their recent Phase 3 clinical trials aimed at addressing hepatic encephalopathy in patients with liver cirrhosis. The clinical evaluation, named the RED-C program, investigated the efficacy of amorphous-rifaximin solid soluble dispersion (SSD) in adult subjects with cirrhosis but without prior episodes of hepatic encephalopathy. Although the medication was found to be safe and well-tolerated, the program did not succeed in meeting its predetermined primary endpoint, specifically the prevention of initial hepatic encephalopathy episodes in the target patient population.

Thomas J. Appio, Chief Executive Officer of Bausch Health, commented on the results, expressing disappointment given the unmet medical need for approved therapies in this patient group. He stated that the company is conducting a comprehensive analysis of the complete trial data to explore alternative developmental strategies moving forward.

The RED-C initiative encompassed two global, randomized, double-blind, placebo-controlled Phase 3 trials, enrolling over 1,000 participants across 398 clinical sites distributed in 17 countries. The structure of these trials was designed to rigorously assess the preventive potential of amorphous-rifaximin SSD among adult cirrhotic patients who had not previously experienced hepatic encephalopathy.

Highlighting the public health significance, cirrhosis ranks as the ninth leading cause of mortality in the United States, based on information cited from the Centers for Disease Control and Prevention. Hepatic encephalopathy is recognized as a serious neurological complication stemming from cirrhosis, impacting patients' brain function.

Despite the setback encountered with the RED-C program, Bausch Health has communicated its ongoing dedication to advancing novel treatments across hepatology as well as other therapeutic domains, emphasizing sustained research and development efforts.

Risks

  • The failure to achieve primary endpoints in pivotal clinical trials introduces uncertainty and risk to Bausch Health’s product development pipeline and stock performance.
  • The lack of approved therapies for preventing hepatic encephalopathy episodes in cirrhosis patients highlights a continued gap in medical treatment that may impact market interest and investor confidence.
  • Future strategic decisions by Bausch Health will depend on detailed data analyses; however, the timeline and outcome of subsequent development opportunities remain uncertain.

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