Alkermes Ups Bid for Avadel Amid Lundbeck’s Competing Offer in Narcolepsy Drug Takeover Battle on November 19, 2025 acquisition Alkermes Avadel Pharmaceuticals bidding war contingent value right Lumryz Lundbeck M&A Narcolepsy Pharma Primary Hypersomnia +
Lundbeck Fires First Shot in Bidding War With Alkermes Over Sleep Biotech Avadel on November 17, 2025 Alkermes Approved Avadel bidding war CVR LUMRYZ Lundbeck Primary Hypersomnia sleep biotech United States Food and Drug Administration +