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Why Is Cosmo (SWX:CMHC) Advancing Rifamycin Gel After Its Phase 2 Success?
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  • Cosmo (SWX:CMHC) reported positive topline Phase 2 data for rifamycin 1% gel in distal ulcerative colitis and ulcerative proctitis.
  • The Phase 2 trial met its primary endpoint, supporting Cosmo's plan to advance rifamycin 1% gel into Phase 3 development.
  • Management plans to start regulatory discussions on rifamycin 1% gel as a non immune suppressive option for ulcerative colitis patients.
  • The positive Phase 2 rifamycin 1% gel readout matters, but investors need to weigh Cosmo's wider risks and pipeline position carefully. Take a look at 2 warning signs (1 major) we have identified for Cosmo.

Ulcerative colitis is drawing interest from a wider group of drug developers, so it can be worth scanning other exposed stocks too 194 high quality undervalued stocks.

SWX:CMHC Earnings & Revenue Growth as at Oct 2026
SWX:CMHC Earnings & Revenue Growth as at Oct 2026

Cosmo is a CHF892.2 million pharmaceuticals group focused on developing and manufacturing treatments for gastroenterology, dermatology and health tech, so a gastro-focused asset like rifamycin 1% gel fits directly into its core therapeutic footprint.

2 things going right for Cosmo that this headline doesn't cover.

Phase 2 success backs Cosmo’s GI drug delivery catalyst, but raises the bar on trial execution risk

The rifamycin 1% gel data speaks directly to one of Cosmo’s key Narrative drivers, the push to extend its proprietary drug delivery platforms into larger gastrointestinal indications such as distal ulcerative colitis. A positive Phase 2 signal in a non immune suppressive gel format supports that specific catalyst and strengthens the case that Cosmo’s gastro franchise can host multiple product candidates, not just diagnostics like GI Genius or older MMX based therapies. At the same time, moving into Phase 3 puts more pressure on the Narrative risk around a relatively narrow and late stage pipeline, since clinical setbacks in these gastrointestinal trials could have an outsized impact on expected revenue streams.

See how these catalysts shape Cosmo's path to a CHF124 fair value.

From here, the key date for readers to mark is when Cosmo discloses the planned Phase 3 program and timelines following its regulatory discussions with the FDA and EMA. The formal Phase 3 start and trial design will frame both the potential ulcerative colitis market opportunity and the scale of development risk investors are weighing.

The Cosmo detail many holders skip sits in the boardroom, not the pipeline

There is another piece of the Cosmo puzzle hiding in plain sight: the people steering the business and the way they are rewarded for it. See who is actually steering Cosmo, and how they are paid.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

Disclaimer:This article represents the opinion of the author only. It does not represent the opinion of Webull, nor should it be viewed as an indication that Webull either agrees with or confirms the truthfulness or accuracy of the information. It should not be considered as investment advice from Webull or anyone else, nor should it be used as the basis of any investment decision.
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