RTW Biotech Opp. - Update on Kailera Therapeutics
RNS Number : 3853R
RTW Biotech Opportunities Ltd
17 July 2025
LEI: 549300Q7EXQQH6KF7Z84
17 July 2025
RTW Biotech Opportunities Ltd
Update on Kailera Therapeutics
RTW Biotech Opportunities Ltd (the "Company"), the London Stock Exchange-listed investment company focused on identifying transformative assets with high growth potential across the life sciences sector, notes the recent announcement from private portfolio company Kailera Therapeutics ("Kailera").
Kailera is a clinical-stage biopharmaceutical company advancing a broad pipeline of next-generation therapies for the treatment of obesity. Its lead product candidate, KAI-9531 (HRS9531 in China), is a novel dual GLP-1/GIP receptor agonist administered via once-weekly subcutaneous injection. As at 30 June, Kailera represented 5.0% of NAV.
On 15 July, Kailera and its partner, Hengrui Pharma, announced positive topline data from the China Phase 3 clinical trial of HRS9531 in individuals living with obesity or overweight. The trial met both primary endpoints, demonstrating superior weight loss and a greater percentage of participants achieving at least 5% body weight reduction compared to placebo. The safety profile was favourable and consistent with other GLP-1-based treatments, with most treatment-emergent adverse events being mild to moderate and gastrointestinal-related.
Hengrui Pharma plans to submit a New Drug Application (NDA) for chronic weight management in China. Kailera is advancing KAI-9531 to global clinical trials.
Kailera's announcement can be found here.
Rod Wong, CIO of RTW Investments, said, "We are excited to see the results of Kailera's lead product, KAI9531, in the China Phase 3 obesity study, which marks a significant milestone in its development. The strong efficacy and favourable safety profile observed in the Chinese population underscore its potential to become a transformative treatment for millions of people living with obesity and related cardiometabolic conditions. With the prevalence of obesity continuing to rise, we believe Kailera is well positioned to bring this product to global markets. Together with Corxel's once-daily oral GLP-1 drug candidate, our portfolio reflects a strategic commitment to delivering both injectable and oral solutions that can meet diverse patient needs and reshape the future of obesity care."
Enquiries:
| RTW Investments, LP - Investment Manager Oliver Kenyon Woody Stileman Krisha McCune (Investor Relations) | +44 (0)20 7959 6362 biotechopportunities@rtwfunds.com |
| Cadarn Capital - PR & IR Partner Lucy Clark (PR) David Harris (Distribution) | +44 (0)7984 184 461 / lucy@cadarncapital.com +44 (0)7368 883 211 /david@cadarncapital.com |
| Deutsche Numis - Joint Corporate Broker Freddie Barnfield Nathan Brown | +44 (0)20 7260 1000 |
| BofA Securities - Joint Corporate Broker Edward Peel Alex Penney | +44 (0)20 7628 1000 |
| Altum (Guernsey) Limited Joanna Duquemin Nicolle Sadie Morrison | +44 (0)1481 703 100 |