
Viking Therapeutics' shares recently plunged 42% following investor concerns over a 28% discontinuation rate for its oral obesity drug, VK2735, over 13 weeks. However, the drug demonstrated weight loss comparable to Eli Lilly's oral treatment, with 98% of adverse events reported as mild or moderate, and the company also has an injectable version of VK2735 in Phase 3 trials. This significant market sell-off is presented as an overreaction, potentially creating a buying opportunity given the drug's efficacy profile and broader pipeline, despite initial safety concerns.
Viking Therapeutics (VKTX) experienced a severe 42% single-day stock decline following the release of trial data for its oral obesity drug, VK2735. The negative market reaction was primarily driven by a 28% discontinuation rate over 13 weeks, which investors interpreted as a poor safety and tolerability profile, especially when compared to Eli Lilly's competing drug that had a 24% rate over a longer 72-week period. However, this concern is partially mitigated by the trial's high placebo discontinuation rate of 18% and the company's statement that 98% of adverse events were mild or moderate. On the efficacy front, VK2735 demonstrated competitive performance, achieving approximately 12% weight loss after three months. Beyond the oral formulation, Viking's pipeline is supported by an injectable version of VK2735, which is in more advanced Phase 3 trials and previously showed a 15% weight loss in 13 weeks during its Phase 2 study. The situation presents a dichotomy where the market has heavily penalized the stock on tolerability concerns for an earlier-stage oral drug, potentially overshadowing the strong efficacy data and the progress of its lead injectable candidate, which could also be a future acquisition target.
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