GSK stock rises after Japan greenlights twice-yearly Exdensur for severe asthma, nasal polyps
London, January 6, 2026, 09:03 GMT — Regular session GSK plc shares rose nearly 1% in early London trade on Tuesday after the drugmaker said Japan had approved its bronchial asthma treatment Exdensur. Shares were up 0.96% at 1,838 pence by 0830 GMT. sharecast.com The decision lands as investors weigh whether GSK’s next wave of respiratory launches can broaden growth beyond its established portfolio. Long-acting medicines that cut the number of injections can be a commercial lever, but they also have to win reimbursement and persuade patients and doctors to switch. The Japan approval followed a separate regulatory win in