The above-referenced Abstract, which was published in the August 2015 Cancer Research supplement (1), is being retracted at the request of Acerta Pharma. The Abstract was included in a retrospective review conducted by the sponsor as part of an assessment of research activities. The sponsor worked with several of the authors and the collaborating academic research institute to establish the source of data that contributed to the information in the Abstract. The review demonstrated that no source of the data could be identified to support the statements in the second paragraph of the Abstract. As the source of these data cannot be located, it was determined that these data were not reliable and Acerta Pharma requests retraction of the Abstract.
The authors have agreed to this Retraction.