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Xilonix, a novel true human antibody targeting the inflammatory cytokine interleukin-1 alpha, in non-small cell lung cancer.


ABSTRACT: BACKGROUND:Advanced non-small cell lung cancer (NSCLC) patients were treated as part of a Phase I dose escalation and expansion study evaluating a true human monoclonal antibody targeting IL-1? (Xilonix), which is intended to modulate the malignant phenotype-inhibiting tumor growth, spread and offering relief of symptoms. METHODS:Sixteen NSCLC patients were included. Patients failed a median of 4 chemotherapy regimens, including 10/16 failing anti-EGFR therapy. Disease progression was evaluated using a multi-modal approach: tumor response, patient reported outcomes (EORTC-QLQC30), and lean body mass (LBM). Patients received infusions every 2 or 3 weeks until progression, and were followed 24 months to assess survival. RESULTS:There were no infusion reactions, dose-limiting toxicities, or deaths due to therapy. Albeit not statistically significant, there was a trend in IL-6 (-2.6 ± 18.5 (0.1 [-2.8-2.4]), platelet counts (-11 ± 54 (-4[-36.0-1.0]), CRP (-3.3 ± 30.2 (0.4 [-10.7-1.8]) and LBM (1.0 ± 2.5 (0.4 [-0.5-2.6]). Self-reported outcomes revealed reductions in pain, fatigue and improvement in appetite. Median survival was 7.6 (IQR 4.4-11.5) months, stratification based on prior anti-EGFR therapy revealed a median survival of 9.4 months (IQR 7.6-12.5) for those pretreated (N = 10) versus a survival of 4.8 months (IQR 4.3-5.7) for those without (N = 6, logrank p = 0.187). CONCLUSION:Xilonix was well tolerated, with gains in LBM and improvement in symptoms suggesting a clinically important response. Although not statistically significant, the survival outcomes observed for patients with and without prior anti-EGFR therapy raises intriguing questions about the potential synergy of IL-1? blockade and anti-EGFR therapy. Further study for this agent in NSCLC is warranted.

SUBMITTER: Hong DS 

PROVIDER: S-EPMC4482235 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature

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Xilonix, a novel true human antibody targeting the inflammatory cytokine interleukin-1 alpha, in non-small cell lung cancer.

Hong David S DS   Janku Filip F   Naing Aung A   Falchook Gerald S GS   Piha-Paul Sarina S   Wheler Jennifer J JJ   Fu Siqing S   Tsimberidou Apostolia M AM   Stecher Michael M   Mohanty Prasant P   Simard John J   Kurzrock Razelle R  

Investigational new drugs 20150331 3


<h4>Background</h4>Advanced non-small cell lung cancer (NSCLC) patients were treated as part of a Phase I dose escalation and expansion study evaluating a true human monoclonal antibody targeting IL-1α (Xilonix), which is intended to modulate the malignant phenotype-inhibiting tumor growth, spread and offering relief of symptoms.<h4>Methods</h4>Sixteen NSCLC patients were included. Patients failed a median of 4 chemotherapy regimens, including 10/16 failing anti-EGFR therapy. Disease progression  ...[more]

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