About LUMOXITI

Innate is licensing the US and EU commercial rights to AstraZeneca’s recently FDA-approved LUMOXITI (moxetumomab pasudotox-tdfk) for hairy cell leukemia (“HCL”). Read the press release.

Innate will recognize revenues and co-commercialize LUMOXITI with AstraZeneca in the US and will take full responsibility by mid-2020.

Please visit https://www.astrazeneca-us.com/ to learn more.

Hairy cell leukemia (HCL) is a rare, chronic, and slow-growing leukemia in which the bone marrow overproduces abnormal B cell lymphocytes. HCL can result in serious conditions, including infections, bleeding and anemia. Approximately 1,000 people are diagnosed with HCL in the US each year. HCL accounts for up to 3% of all adult leukemias. While many patients initially respond to treatment, 30% to 40% will relapse five to ten years after their first treatment. With no established standard of care and very few treatments available, there remains significant unmet medical need for people with relapsed or refractory HCL.

LUMOXITI™ (moxetumomab pasudotox-tdfk) is a CD22-directed cytotoxin and a first-in-class treatment in the US for adult patients with relapsed or refractory hairy cell leukemia (HCL) who have received at least two prior systemic therapies, including treatment with a purine nucleoside analog. LUMOXITI is not recommended in patients with severe renal impairment (CrCl ≤ 29 mL/min). It comprises the CD22 binding portion of an antibody fused to a truncated bacterial toxin; the toxin inhibits protein synthesis and ultimately triggers apoptotic cell death. LUMOXITI has been granted Orphan Drug Designation by the FDA for the treatment of HCL.

The LUMOXITI approval is based on data from the single-arm, open-label ‘1053’ trial, which is a single-arm, multicenter Phase III clinical trial assessing the efficacy, safety, immunogenicity and pharmacokinetics of moxetumomab pasudotox monotherapy in patients with relapsed or refractory HCL who have received at least two prior therapies, including one purine nucleoside analog. The trial was conducted in 80 patients across 34 sites in 14 countries. The primary endpoint was durable complete response (CR), defined as CR with hematologic remission (blood count normalization) for >180 days. Secondary outcome measures included overall response rate, relapse free survival, progression-free survival, time to response, safety, pharmacokinetic and immunogenic potential.