Ironwood Pharmaceuticals reported a total revenue of $41.1 million and a GAAP net loss of $37.4 million for the first quarter of 2025. The company's LINZESS prescription demand grew by 8% year-over-year, and they raised their adjusted EBITDA guidance for 2025 to greater than $105 million. The decrease in revenue was primarily due to a change in estimate of AbbVie gross-to-net rebate reserves, which is expected to impact quarterly phasing but not full-year results.
Total revenue for Q1 2025 was $41.1 million, a decrease from $74.9 million in Q1 2024.
GAAP net loss for Q1 2025 was $37.4 million, compared to a net loss of $4.2 million in Q1 2024.
Adjusted EBITDA for Q1 2025 was -$4.7 million, down from $21.1 million in Q1 2024.
LINZESS prescription demand grew 8% year-over-year in Q1 2025, reaching 53 million capsules.
Ironwood Pharmaceuticals reaffirmed its FY 2025 financial guidance and raised its adjusted EBITDA guidance to greater than $105 million for 2025. The company expects high single-digit prescription demand growth for LINZESS, though this will be partially offset by expected price erosion due to Medicare Part D redesign.