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AstraZeneca provides update on Phase III trial of Selumetinib in non-small cell lung cancer

AstraZeneca announced results from the Phase III SELECT-1 trial of the MEK 1/2 inhibitor, selumetinib, in combination with docetaxel chemotherapy as 2nd-line treatment in patients with KRAS mutation-positive (KRASm) locally-advanced or metastatic non-small cell lung cancer (NSCLC).

The results showed that the trial did not meet its primary endpoint of progression-free survival (PFS), and selumetinib did not have a significant effect on overall survival (OS). The adverse event profiles for selumetinib and docetaxel were consistent with those seen previously.

Sean Bohen, Executive Vice President, Global Medicines Development and Chief Medical Officer at AstraZeneca, said: “A randomised Phase II trial showed promising activity of selumetinib in combination with docetaxel in patients with KRAS mutation-positive lung cancer. It is disappointing for patients that these results have not been confirmed in Phase III. We expect to present data at a forthcoming medical meeting. We remain committed to further developing treatments in the lung cancer setting, such as our immunotherapy combinations and targeted EGFR treatments.”

SELECT-1 is an international trial with 510 randomised patients in over 200 centres. Patients received either selumetinib (75mg, orally, twice daily) or placebo in combination with docetaxel (intravenously, 75mg/m2, on day one of every 21-day cycle).

Selumetinib is being explored as a treatment option in registration-enabling studies in patients with differentiated thyroid cancer where the treatment received Orphan Drug Designation, and patients with neurofibromatosis type 1, a genetic disorder that causes tumours to grow along nerve tissue.1

About AstraZeneca in Oncology :
AstraZeneca has a deep-rooted heritage in Oncology and offers a quickly growing portfolio of new medicines that has the potential to transform patients’ lives and the Company’s future. With at least 6 new medicines to be launched between 2014 and 2020 and a broad pipeline of small molecules and biologics in development, we are committed to advance New Oncology as one of AstraZeneca’s six Growth Platforms focused on lung, ovarian, breast and blood cancers. In addition to our core capabilities, we actively pursue innovative partnerships and investments that accelerate the delivery of our strategy, as illustrated by our investment in Acerta Pharma in haematology.

By harnessing the power of four scientific platforms — immuno-oncology, the genetic drivers of cancer and resistance, DNA damage response and antibody drug conjugates — and by championing the development of personalised combinations, AstraZeneca has the vision to redefine cancer treatment and one day eliminate cancer as a cause of death.

About AstraZeneca :
AstraZeneca is a global, science-led biopharmaceutical company that focuses on the discovery, development and commercialisation of prescription medicines, primarily for the treatment of diseases in three main therapy areas – Respiratory and Autoimmunity, Cardiovascular and Metabolic Diseases, and Oncology. The Company is also active in inflammation, infection and neuroscience through numerous collaborations. AstraZeneca operates in over 100 countries and its innovative medicines are used by millions of patients worldwide. For more information please visit: www.astrazeneca.com.

References :

1 U.S. National Library of Medicine. Genetics Home Reference: neurofibromatosis type 1. Published 5 July 2016. Available at https://ghr.nlm.nih.gov/condition/neurofibromatosis-type-1. Accessed 6 July 2016.

2 Dearden S et al. Mutation incidence and coincidence in non small-cell lung cancer: meta-analyses by ethnicity and histology (mutMap). Ann Oncol. 2013 Sep;24(9):2371-6.

3 Jänne PA et al. Study design and rationale for a randomized, placebo-controlled, double-blind study to assess the efficacy and safety of selumetinib in combination with docetaxel as second-line treatment in patients with KRAS-mutant advanced non-small cell lung cancer (SELECT-1). Clin Lung Cancer 2016 Mar;17(2):e1-4

4 Davies BR, et al. AZD6244 (ARRY-142886), a potent inhibitor of mitogen-activated protein kinase/extracellular signal-regulated kinase kinase 1/2 kinases: mechanism of action in vivo, pharmacokinetic/pharmacodynamic relationship, and potential for combination in preclinical models. Mol Cancer Ther 2007;6:2209–19.

5 Roberts PJ, Stinchcombe TE. KRAS Mutation: Should We Test for It, and Does It Matter? J Clin Oncol 2013;31(8):1112–21.

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