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RRx-001-Induced Tumor Necrosis and Immune Cell Infiltration in an EGFR Mutation-Positive NSCLC with Resistance to EGFR Tyrosine Kinase Inhibitors: A Case Report

We present the case of a 49-year-old male with metastatic epidermal growth factor receptor (EGFR) mutation-positive adenocarcinoma of the lung that continues to outlive stage IV diagnosis of non-small cell lung cancer after treatment with RRx-001, an experimental anticancer agent with epigenetic and...

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Detalles Bibliográficos
Autores principales: Brzezniak, Christina, Schmitz, Bruno A., Peterson, Paul G., Degesys, Aiste, Oronsky, Bryan T., Scicinski, Jan J., Caroen, Scott Z., Carter, Corey A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: S. Karger AG 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4748757/
https://www.ncbi.nlm.nih.gov/pubmed/26933418
http://dx.doi.org/10.1159/000443605
Descripción
Sumario:We present the case of a 49-year-old male with metastatic epidermal growth factor receptor (EGFR) mutation-positive adenocarcinoma of the lung that continues to outlive stage IV diagnosis of non-small cell lung cancer after treatment with RRx-001, an experimental anticancer agent with epigenetic and immunologic activity, in the context of a phase II clinical trial called TRIPLE THREAT. Currently, no adequate treatment options exist for patients with EGFR mutation-positive tumors who have failed a 1st-generation tyrosine kinase inhibitor (erlotinib or gefitinib) treatment and do not develop a resistant mutation. Biopsy of a large pancreatic metastasis after RRx-001 demonstrated extensive necrosis with CD3+ and CD8+ immune cell infiltration that appears to correlate with prolonged survival despite end-stage disease. These results suggest that the mode of action of RRx-001 is related to immune stimulation in addition to epigenetic inhibition.