After more than a decade of changing hands multiple times, GSK plc’s Ojjaara (momelotinib) has finally won US Food and Drug Administration approval for myelofibrosis in patients with anemia, providing the British drug maker with a new hematology-oncology revenue stream amid its recent setbacks in the space. GSK shelled out nearly $2bn to acquire Ojjaara’s previous developer, Sierra Oncology, purchasing a drug for which analysts have forecast peak sales in the hundreds of millions of dollars.
GSK’s Ojjaara Scores Myelofibrosis Nod After Round-The-World Journey
The US FDA approved the JAK inhibitor momelotinib for myelofibrosis with anemia, with an analyst forecasting peak sales of more than $425m.

More from New Products
Pipeline Watch is a weekly snapshot of selected late-stage clinical trial events and approvals announced by pharmaceutical and biotech companies at medical and industry conferences, in financial and company presentations, and in company releases and statements.
The approval of another Novartis drug with a different mechanism means the company is further cornering multiple parts of IgAN pathogenesis.
It might be the beginning of the end for the orphan drugs party but there is still sales growth enjoyment to be had for the sector, whose star performers are now looking increasingly like mainstream drugs.
Strong sales growth for the German group’s SGLT2 inhibitor in 2024
More from Scrip
By allowing it to enter the brain more easily, trontinemab’s brain shuttle brings more patients to ‘amyloid zero’ levels faster, and with fewer brain swelling side effects.
Compass' bispecific antibody tovecimig hits primary efficacy endpoint in Phase II/III top-line data in advanced biliary tract cancer, and may have class side-effect advantages. But additional survival data may be needed to support US approval.
AstraZeneca remains committed to investing in R&D and alliances in China, where Susan Galbraith, the UK major’s head of oncology R&D, sees innovation eventually reaching parity with the US and Europe.