Company: SMNR
Filing Date: 2025-06-11
Form Type: S-4/A
Source: 0001193125-25-139124
Chunk: 478

Company: Semnur Pharmaceuticals, Inc.
Filing Date: 2025-06-11
Form: S-4/A
Chunk 478
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 and infrastructure. We have conducted pharmacokinetic (“PK”) and toxicology studies, including a Phase 1 PK bridging study, Phase 2 repeat dose study, and a pivotal Phase 3 study. We were acquired by Scilex on March 18, 2019, pursuant to, and in connection with the transactions contemplated by, an Agreement and Plan of Merger between Scilex, us, Sigma Merger Sub, Inc., Scilex’s then wholly owned subsidiary (“Sigma Merger Sub”), Fortis Advisors LLC, solely as representative of the holders of our equity (the “Semnur Equityholders’ Representative”), and Sorrento Therapeutics, Inc. (“Sorrento”), for limited purposes (as amended, the “Semnur Merger Agreement”). We expect to continue to make investments in research and development, clinical trials and regulatory affairs to develop our product candidate, SP-102.

We have completed a pivotal Phase 3 study with final results received in March 2022, which results reflected achievement of primary and secondary endpoints, with SP-102 treatment decreasing pain intensity for over a month in sciatica patients and resulting in statistically significant and clinically meaningful improvement in the disability index score while maintaining tolerability comparable to placebo. The Phase 3 study results were published in PAIN Journal in June 2024, which is the leading journal devoted to pain medicine and research. This Phase 3 study represents a potential significant improvement in treatment of adult patients with sciatica, who struggle with the clinical consequences of no currently FDA approved therapies being available, suboptimal formulations of corticosteroids used off-label and/or excess pain and disability. The primary endpoint of change in average daily Numeric Pain Rating Scale (“NPRS”) pain in the affected leg over four weeks demonstrated**

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meaningful and statistically significant result over placebo, least square (LS) mean treatment difference (standard error [SE]) of -0.52 (0.163) units [95% confidence interval [CI]: -0.84, -0.20] compared to placebo (P=0.002). Most of the secondary endpoints at four weeks also demonstrated statistically significant results, supporting the primary outcome. For the key secondary endpoint of mean change in Oswestry Disability Index (“ODI”) from baseline, the LS mean treatment difference (SE) for SP-102 was -3.38 (1.388) units [95% CI: -6.11, -0.65]