ALK and non-small cell lung carcinoma: Promising results have been shown with HSP90 inhibitors (Bonvini et al. 2002; Chen et al. 2010; Katayama et al. 2011; Li et al. 2012; Sequist et al. 2010), like AUY922 which is currently tested in ALK+ NSCLC patients as single agent or in combination with ALK inhibitor LDK378 (NCT01124864, NCT01752400, NCT01772797).