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Rodón J, Funchain P, Laetsch TW, Arkenau HT, Hervieu A, Singer CF, Murciano-Goroff YR, Chawla SP, Anthony K, Yamamiya I, Liu M, Halim AB, Benhadji KA, Takahashi O, Delaloge S. A phase II study of TAS-117 in patients with advanced solid tumors harboring germline PTEN-inactivating mutations. Future Oncol 2022; 18:3377-3387. [PMID: 36039910 PMCID: PMC10334253 DOI: 10.2217/fon-2022-0305] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 08/02/2022] [Indexed: 11/21/2022] Open
Abstract
PTEN acts as a potent tumor suppressor within the PI3K/AKT/mTOR pathway. Germline mutations in the PTEN gene are a hallmark of PTEN hamartoma tumor syndrome, which includes Cowden syndrome, where they appear to elevate lifetime risk of cancer. Targeted AKT directed therapy has been proposed as an effective approach in cancer patients having germline PTEN mutations. The mechanism of action, safety and dosing regimen for the novel allosteric AKT inhibitor TAS-117 have been explored in a phase I study in Japan in which activity was observed against certain tumor types. Here we describe the study protocol of an international, two-part phase II study evaluating the safety, tolerability, pharmacokinetics, pharmacodynamics and antitumor activity of TAS-117 in patients with advanced solid tumors harboring germline PTEN-inactivating mutations.
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Affiliation(s)
- Jordi Rodón
- Department of Investigational Cancer Therapeutics, Division of Cancer Medicine, MD Anderson Cancer Center, Houston, TX 77030, USA
| | | | - Theodore W Laetsch
- Children's Hospital of Philadelphia, & University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Hendrik-Tobias Arkenau
- Sarah Cannon Research Institute, London, UK, & Cancer Institute, University College London, London, W1G 6AD, UK
| | | | - Christian F Singer
- Dept of OB/GYN & Comprehensive Cancer Center, Medical University of Vienna, Vienna, 1090, Austria
| | | | - Sant P Chawla
- Sarcoma Oncology Research Center, Santa Monica, CA 90403, USA
| | - Kristin Anthony
- The PTEN Hamartoma Tumor Syndrome Foundation, Huntsville, AL 35806, USA
| | | | - Mei Liu
- Taiho Oncology, Princeton, NJ 08540, USA
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Qu S, Martens JWM, Hollestelle A, Smid M. Identifying Transcripts with Tandem Duplications from RNA-Sequencing Data to Predict BRCA1-Type Primary Breast Cancer. Cancers (Basel) 2022; 14:753. [PMID: 35159019 DOI: 10.3390/cancers14030753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/26/2022] [Accepted: 01/29/2022] [Indexed: 12/10/2022] Open
Abstract
Simple Summary Homologous recombination repair deficiency (HRD) is a biomarker for the response to PARP inhibitor anti-cancer treatment. Therefore, methods that detect the HRD phenotype in cancers in a (cost-)effective manner are pivotal. In this respect, the HRDetect and CHORD algorithms were developed to classify (the type of) HRD cancers from whole genome sequencing data. In addition, functional assays have also been established, but these require fresh cancer tissue. Here we present a novel method to specifically classify BRCA1-type HRD from RNA-sequencing data with high sensitivity. BRCA1-type cancers typically display small (<10 kb) tandem duplications, in contrast to BRCA2-type cancers. By detecting these small TDs among transcripts, we increase the toolbox for detecting HRD with a method that does not require whole genome sequencing of both tumor and normal tissue. Abstract Patients with cancers that are deficient for homologous recombination repair (HRD) may benefit from PARP inhibitor treatment. Therefore, methods that identify such cancers are crucial. Using whole genome sequencing data, specific genomic scars derived from somatic mutations and genomic rearrangements can identify HRD tumors, with only BRCA1-like HRD cancers profoundly displaying small (<10 kb) tandem duplications (TDs). In this manuscript we describe a method of detecting BRCA1-type HRD in breast cancer (BC) solely from RNA sequencing data by identifying TDs surfacing in transcribed genes. We find that the number of identified TDs (TD-score) is significantly higher in BRCA1-type vs. BRCA2-type BCs, or vs. HR-proficient BCs (p = 2.4 × 10−6 and p = 2.7 × 10−12, respectively). A TD-score ≥2 shows an 88.2% sensitivity (30 out of 34) to detect a BRCA1-type BC, with a specificity of 64.7% (143 out of 221). Pathway enrichment analyses showed genes implicated in cancer to be affected by TDs of which PTEN was found significantly more frequently affected by a TD in BRCA1-type BC. In conclusion, we here describe a novel method to identify TDs in transcripts and classify BRCA1-type BCs with high sensitivity.
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Rossi G, Russo A, Tagliamento M, Tuzi A, Nigro O, Vallome G, Sini C, Grassi M, Dal Bello MG, Coco S, Longo L, Zullo L, Tanda ET, Dellepiane C, Pronzato P, Genova C. Precision Medicine for NSCLC in the Era of Immunotherapy: New Biomarkers to Select the Most Suitable Treatment or the Most Suitable Patient. Cancers (Basel) 2020; 12:E1125. [PMID: 32365882 PMCID: PMC7281184 DOI: 10.3390/cancers12051125] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/20/2020] [Accepted: 04/27/2020] [Indexed: 12/13/2022] Open
Abstract
In recent years, the evolution of treatments has made it possible to significantly improve the outcomes of patients with non-small cell lung cancer (NSCLC). In particular, while molecular targeted therapies are effective in specific patient sub-groups, immune checkpoint inhibitors (ICIs) have greatly influenced the outcomes of a large proportion of NSCLC patients. While nivolumab activity was initially assessed irrespective of predictive biomarkers, subsequent pivotal studies involving other PD-1/PD-L1 inhibitors in pre-treated advanced NSCLC (atezolizumab within the OAK study and pembrolizumab in the Keynote 010 study) reported the first correlations between clinical outcomes and PD-L1 expression. However, PD-L1 could not be sufficient on its own to select patients who may benefit from immunotherapy. Many studies have tried to discover more precise markers that are derived from tumor tissue or from peripheral blood. This review aims to analyze any characteristics of the immunogram that could be used as a predictive biomarker for response to ICIs. Furthermore, we describe the most important genetic alteration that might predict the activity of immunotherapy.
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Affiliation(s)
- Giovanni Rossi
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
- Department of Medical, Surgical and Experimental Sciences, University of Sassari, 07100 Sassari, Italy
| | | | - Marco Tagliamento
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Alessandro Tuzi
- UO Oncologia, ASST Sette Laghi, 21100 Varese, Italy; (A.T.); (O.N.)
| | - Olga Nigro
- UO Oncologia, ASST Sette Laghi, 21100 Varese, Italy; (A.T.); (O.N.)
| | - Giacomo Vallome
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Claudio Sini
- Oncologia Medica e CPDO, ASSL di Olbia-ATS Sardegna, 07026 Olbia, Italy;
| | - Massimiliano Grassi
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Maria Giovanna Dal Bello
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Simona Coco
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Luca Longo
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Lodovica Zullo
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Enrica Teresa Tanda
- Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy;
| | - Chiara Dellepiane
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Paolo Pronzato
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
| | - Carlo Genova
- Lung Cancer Unit, Medical Oncology 2, IRCCS Ospedale Policlinico San Martino, 16132 Genova, Italy; (M.T.); (G.V.); (M.G.); (M.G.D.B.); (S.C.); (L.L.); (L.Z.); (C.D.); (P.P.); (C.G.)
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