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Updated: Oct 28, 2025

Cell Death Associated with Abnormal Mitosis Observed by Confocal Imaging in Live Cancer Cells
Published on: August 21, 2013
Repositioning PARP inhibitors in the treatment of thoracic malignancies
Francesco Passiglia1, Maria Lucia Reale1, Valeria Cetoretta1
1Department of Oncology, University of Turin, S. Luigi Gonzaga Hospital, Orbassano, TO, Italy.
Abstract:
The evaluation of the homologous recombination repair (HRR) status is emerging as a predictive tumor agnostic biomarker for poly (ADP-ribose) polymerase (PARP) inhibition across different tumor types and testing for HRR-signature is currently a developing area with promising therapeutic implications. Treatment with PARP inhibitors (PARPi) either as single agent or in combination with chemotherapy have shown so far limited activity in patients with thoracic malignancies. A deeper understanding of the biological background underlying HRR-deficient tumors, along with the recent advent of new effective targeted and immunotherapeutic agents, prompted the design of a new generation of clinical trials investigating novel PARPi-combinations in patients with lung cancer as well as malignant pleural mesothelioma. In this review we briefly summarize the biological basis of the DNA damage response pathway inhibition and provide an updated and detailed overview of clinical trials testing different PARPi-combinations strategies in patients with thoracic malignancies.
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