INBX Rises 81% Following Study Results; FEMY, CING, CYH Surge in After-Hours Trading
Inhibrx Biosciences Surge: Inhibrx Biosciences (INBX) shares soared over 81% after positive Phase 2 trial results for ozekibart in treating advanced chondrosarcoma, alongside updates on other cancer treatment studies.
Femasys Gains: Femasys Inc. (FEMY) saw an 18% increase following the launch of a post-market clinical study for its FemBloc Permanent Birth Control, complying with EU regulations.
Cingulate's Presentation: Cingulate Inc. (CING) rose over 6% after announcing that data from its ADHD treatment candidate, CTx-1301, will be presented at the AACAP Annual Meeting, highlighting its potential in ADHD management.
Community Health Systems Performance: Community Health Systems, Inc. (CYH) shares increased over 4% after reporting positive Q3 results, contributing to a generally favorable after-hours trading environment for biotech stocks.
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- Hernexeos Approval: On February 26, 2026, the FDA granted accelerated approval to Boehringer Ingelheim's Hernexeos as a first-line treatment for adult patients with HER2-mutant advanced non-small cell lung cancer, representing a significant milestone that could improve patient prognosis and reduce the risk of brain metastases for the 2-4% of NSCLC cases affected.
- Yuviwel Launch: Ascendis Pharma secured FDA approval on February 27, 2026, for Yuviwel, the first and only therapy providing continuous systemic exposure to C-type natriuretic peptide (CNP) for children aged 2 and older with achondroplasia, which is expected to enhance treatment adherence compared to daily alternatives.
- Palynziq Indication Expansion: BioMarin received FDA approval on February 27, 2026, to expand Palynziq's indication to include pediatric patients aged 12 and older with phenylketonuria, which is anticipated to further drive sales growth, having generated $433 million in revenue in 2025.
- Sogroya New Indications: Novo Nordisk obtained FDA approval on February 27, 2026, for Sogroya's expanded indications for various growth disorders, offering a once-weekly growth hormone alternative that is expected to improve treatment adherence and alleviate the burden of daily injections for families.
- FDA Approval Milestone: Ascendis Pharma's YUVIWEL has received FDA approval as the first once-weekly treatment for children with achondroplasia, marking the company's third FDA-approved drug and significantly enhancing its competitive position in the rare disease market.
- Clinical Data Highlights: In the pivotal ApproaCH trial, children treated with navepegritide achieved an annualized growth velocity (AGV) of 5.9 cm/year compared to 4.4 cm/year for placebo, demonstrating a significant treatment difference of 1.5 cm/year, indicating the drug's clinical efficacy.
- Commercialization Strategy: Ascendis plans to support the commercial availability of YUVIWEL in early Q2 2026, expecting a premium pricing strategy, and aims to maximize market penetration through the Ascendis Signature Access Program, which includes reimbursement support and patient assistance.
- Market Opportunity and Future Milestones: Ascendis estimates approximately 2,600 pediatric patients with achondroplasia in the U.S., with plans to complete enrollment in a study for children aged 0-2 by 2026 and aims for European approval by the end of the year, further expanding market potential.

Stock Sale Announcement: Jensen Michael Wolff intends to sell 18,349 shares of Ascendis Pharma A/S common stock on March 2, with a total market value of approximately $4.44 million.
Reduction in Shareholding: Wolff has reduced his shareholding in Ascendis Pharma A/S by 10,000 shares since December 4, 2025, with a total value of around $2.08 million.
- FDA Approval: Ascendis Pharma's Yuviwel (navepegritide) has received FDA approval as the first once-weekly treatment for children with achondroplasia, expected to be available in Q2 2026, significantly enhancing the company's competitive position in the rare pediatric disease market.
- Clinical Trial Support: The approval is based on data from three randomized clinical trials aimed at promoting linear growth in children aged two and older, marking a significant advancement in treatment options for achondroplasia and addressing the urgent market need for effective therapies.
- Positive Market Reaction: Following the FDA approval, Ascendis Pharma's stock rose 3.21% to $241.00 during Monday's premarket trading, reflecting investor optimism regarding the new drug's market potential and indicating the company's growth prospects in the biopharmaceutical sector.
- Optimistic Analyst Ratings: The stock currently holds a Buy rating with an average price target of $261.21, with analysts from Oppenheimer and Wedbush raising their targets, indicating increased market confidence in Ascendis Pharma's future performance.
- FDA Accelerated Approval: Ascendis Pharma's YUVIWEL (navepegritide) has received FDA accelerated approval, becoming the first once-weekly treatment aimed at increasing linear growth in children aged two years and older with achondroplasia, marking a significant breakthrough in the rare disease sector.
- Clinical Trial Support: The approval is based on data from three randomized, double-blind, placebo-controlled clinical trials demonstrating significant improvements in annualized growth velocity (AGV), with future continued approval dependent on verification of clinical benefits in confirmatory trials, highlighting the company's commitment to scientific research.
- Patient Services Program: Ascendis plans to launch patient services through its Ascendis Signature Access Program (A.S.A.P.), offering treatment navigation and financial assistance, aimed at enhancing patient experience and strengthening market competitiveness.
- Positive Market Reaction: Following the FDA approval, ASND stock rose 1.97% in regular trading and further increased by 4.07% in after-hours trading, reflecting investor optimism regarding the company's future growth potential.
- Drug Approval: The US FDA has granted approval for Ascendis Pharma's Yuviwel (navepegritide) to treat children with achondroplasia, marking a significant advancement for the company in the pediatric growth disorder treatment space.
- Dosing Regimen: Yuviwel is administered once weekly for children aged two years and older, with availability expected in Q2 2025, addressing the urgent market demand for effective treatment options.
- Post-Market Trial Requirement: The FDA mandates Ascendis to conduct post-marketing trials to confirm the treatment's benefits, which will influence the company's future clinical research and market strategy.
- Improvement in Growth Velocity: The approval was based on significant improvements in annualized growth velocity, demonstrating the drug's effectiveness in enhancing children's growth potential, which could drive Ascendis's further development in the biopharmaceutical market.









