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Elhariri A, Patel J, Mahadevia H, Albelal D, Ahmed AK, Jones JC, Borad MJ, Babiker H. Identifying Actionable Alterations in KRAS Wild-Type Pancreatic Cancer. Target Oncol 2024; 19:679-689. [PMID: 39123077 DOI: 10.1007/s11523-024-01088-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/22/2024] [Indexed: 08/12/2024]
Abstract
The 5-year relative survival rate for pancreatic cancer is currently the lowest among all cancer types with a dismal 13%. A Kirsten rat sarcoma virus (KRAS) gene mutation is present in approximately 90% of patients with pancreatic cancer; however, KRAS-specific drugs are not yet widely used in clinical practice for pancreatic cancer, specifically the KRASG12D variant. Advances in genomic testing revealed an opportunity to detect genetic alterations in a subset of patients with no KRAS mutation termed KRAS wild-type. Patients with KRAS wild-type tumors have a propensity to express driver alterations, hence paving the way for utilizing a targeted therapy approach either via clinical trials or standard-of-care drugs. These alterations include fusions, amplifications, translocations, rearrangements and microsatellite instability-high tumors and can be as high as 11% in some studies. Here, we discuss some of the most notable alterations in KRAS wild-type and highlight promising clinical trials.
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Affiliation(s)
- Ahmed Elhariri
- Division of Hematology-Oncology, Department of Medicine, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA
| | - Jaydeepbhai Patel
- Division of Hematology-Oncology, Department of Medicine, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA
| | - Himil Mahadevia
- Division of Hematology-Oncology, Department of Medicine, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA
| | - Douaa Albelal
- Division of Hematology-Oncology, Department of Medicine, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA
| | - Ahmed K Ahmed
- Division of Hematology-Oncology, Department of Medicine, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA
| | - Jeremy C Jones
- Division of Hematology-Oncology, Department of Medicine, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA
| | - Mitesh J Borad
- Division of Hematology-Oncology, Department of Medicine, Mayo Clinic Arizona, Phoenix, AZ, USA
| | - Hani Babiker
- Division of Hematology-Oncology, Department of Medicine, Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL, 32224, USA.
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Chaudhary HA, Cannon TL, Winer A. Targeting Non-V600 Mutations in BRAF: A Single Institution Retrospective Analysis and Review of the Literature. Drugs R D 2024; 24:395-403. [PMID: 39177935 PMCID: PMC11455815 DOI: 10.1007/s40268-024-00475-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/23/2024] [Indexed: 08/24/2024] Open
Abstract
BACKGROUND AND OBJECTIVE While successful treatment paradigms for BRAF V600 mutations have been developed, 10% of BRAF mutations are not at V600 and lack a standard treatment regimen. This study summarizes the current body of knowledge on the treatment of non-V600 mutations and reports a single institution experience. METHODS We conducted a literature review to summarize relevant preclinical and clinical published data on the response of non-V600 mutations to targeted therapies. We performed a retrospective analysis of INOVA Schar Cancer patients registered in our Molecular Tumor Board database with non-V600 BRAF mutations who were recipients of targeted therapy and assessed their time to next treatment and best response. RESULTS Published preclinical and clinical data have demonstrated limiting results in the response of non-V600 mutated cancers to targeted therapies. Response rates were variable for the major classes of BRAF mutations including class II and class III mutations as well as, BRAF fusions. Data collected from our INOVA cohort offered promising results with one patient achieving partial remission and two patients achieving stable disease. CONCLUSIONS This article reflects the current understanding of targeted therapies in non-V600 mutations. Further large-scale studies separating BRAF mutations based on their mechanism of activation will expand our understanding.
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Affiliation(s)
- Hirra A Chaudhary
- INOVA, Schar Cancer Institute, Fairfax, VA, USA.
- UVA School of Medicine, INOVA Fairfax Medical Campus, Fairfax, VA, USA.
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Newhook TE, Tsai S, Meric-Bernstam F. Precision Oncology in Hepatopancreatobiliary Cancer Surgery. Surg Oncol Clin N Am 2024; 33:343-367. [PMID: 38401914 DOI: 10.1016/j.soc.2023.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2024]
Abstract
Advances in technology have allowed for the characterization of tumors at the genomic, transcriptomic, and proteomic levels. There are well-established targets for biliary tract cancers, with exciting new targets emerging in pancreatic ductal adenocarcinoma and potential targets in hepatocellular carcinoma. Taken together, these data suggest an important role for molecular profiling for personalizing cancer therapy in advanced disease and need for design of novel neoadjuvant studies to leverage these novel therapeutics perioperatively in the surgical patient.
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Affiliation(s)
- Timothy E Newhook
- Department of Surgical Oncology, Division of Surgery, University of Texas MD Anderson Cancer Center, 1515 Holcombe Boulevard, Houston, TX 77030, USA
| | - Susan Tsai
- Division of Surgical Oncology, Department of Surgery, Ohio State University Comprehensive Cancer Center, N924 Doan Hall, 410 West 10th Avenue, Columbus, OH 43210, USA
| | - Funda Meric-Bernstam
- Department of Investigational Cancer Therapeutics, Division of Cancer Medicine, University of Texas MD Anderson Cancer Center, 1400 Holcombe Boulevard, FC8.3044, Houston, TX 77030, USA.
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Riaud M, Maxwell J, Soria-Bretones I, Dankner M, Li M, Rose AAN. The role of CRAF in cancer progression: from molecular mechanisms to precision therapies. Nat Rev Cancer 2024; 24:105-122. [PMID: 38195917 DOI: 10.1038/s41568-023-00650-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 11/27/2023] [Indexed: 01/11/2024]
Abstract
The RAF family of kinases includes key activators of the pro-tumourigenic mitogen-activated protein kinase pathway. Hyperactivation of RAF proteins, particularly BRAF and CRAF, drives tumour progression and drug resistance in many types of cancer. Although BRAF is the most studied RAF protein, partially owing to its high mutation incidence in melanoma, the role of CRAF in tumourigenesis and drug resistance is becoming increasingly clinically relevant. Here, we summarize the main known regulatory mechanisms and gene alterations that contribute to CRAF activity, highlighting the different oncogenic roles of CRAF, and categorize RAF1 (CRAF) mutations according to the effect on kinase activity. Additionally, we emphasize the effect that CRAF alterations may have on drug resistance and how precision therapies could effectively target CRAF-dependent tumours. Here, we discuss preclinical and clinical findings that may lead to improved treatments for all types of oncogenic RAF1 alterations in cancer.
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Affiliation(s)
- Melody Riaud
- Gerald Bronfman Department of Oncology, McGill University, Montreal, Quebec, Canada
- Lady Davis Institute, Jewish General Hospital, Montreal, Quebec, Canada
| | - Jennifer Maxwell
- Lady Davis Institute, Jewish General Hospital, Montreal, Quebec, Canada
- Division of Experimental Medicine, Faculty of Medicine, McGill University, Montreal, Quebec, Canada
| | - Isabel Soria-Bretones
- Gerald Bronfman Department of Oncology, McGill University, Montreal, Quebec, Canada
- Lady Davis Institute, Jewish General Hospital, Montreal, Quebec, Canada
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Matthew Dankner
- Lady Davis Institute, Jewish General Hospital, Montreal, Quebec, Canada
- Faculty of Medicine, McGill University, Montreal, Quebec, Canada
- Rosalind & Morris Goodman Cancer Institute, McGill University, Montreal, Quebec, Canada
| | - Meredith Li
- Gerald Bronfman Department of Oncology, McGill University, Montreal, Quebec, Canada
| | - April A N Rose
- Gerald Bronfman Department of Oncology, McGill University, Montreal, Quebec, Canada.
- Lady Davis Institute, Jewish General Hospital, Montreal, Quebec, Canada.
- Division of Experimental Medicine, Faculty of Medicine, McGill University, Montreal, Quebec, Canada.
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Buckley CW, O’Reilly EM. Next-generation therapies for pancreatic cancer. Expert Rev Gastroenterol Hepatol 2024; 18:55-72. [PMID: 38415709 PMCID: PMC10960610 DOI: 10.1080/17474124.2024.2322648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2023] [Accepted: 02/20/2024] [Indexed: 02/29/2024]
Abstract
INTRODUCTION Pancreas ductal adenocarcinoma (PDAC) is a frequently lethal malignancy that poses unique therapeutic challenges. The current mainstay of therapy for metastatic PDAC (mPDAC) is cytotoxic chemotherapy. NALIRIFOX (liposomal irinotecan, fluorouracil, leucovorin, oxaliplatin) is an emerging standard of care in the metastatic setting. An evolving understanding of PDAC pathogenesis is driving a shift toward targeted therapy. Olaparib, a poly-ADP-ribose polymerase (PARP) inhibitor, has regulatory approval for maintenance therapy in BRCA-mutated mPDAC along with other targeted agents receiving disease-agnostic approvals including for PDAC with rare fusions and mismatch repair deficiency. Ongoing research continues to identify and evaluate an expanding array of targeted therapies for PDAC. AREAS COVERED This review provides a brief overview of standard therapies for PDAC and an emphasis on current and emerging targeted therapies. EXPERT OPINION There is notable potential for targeted therapies for KRAS-mutated PDAC with opportunity for meaningful benefit for a sizable portion of patients with this disease. Further, emerging approaches are focused on novel immune, tumor microenvironment, and synthetic lethality strategies.
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Affiliation(s)
- Conor W. Buckley
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
| | - Eileen M. O’Reilly
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, USA
- Weill Cornell Medicine, New York, USA
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Abstract
This commentary highlights the key recent advances made in the field of pancreatic cancer. Although there has yet to be a major breakthrough in clinical care for the majority of patients, significant strides have been made in understanding the complex biology of this malignancy and identifying new therapeutic targets.
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Affiliation(s)
- Emilie A.K. Warren
- Division of Surgical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Gregory B. Lesinski
- Department of Hematology & Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA
| | - Shishir K. Maithel
- Division of Surgical Oncology, Winship Cancer Institute, Emory University, Atlanta, GA
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Amaral MJ, Oliveira RC, Donato P, Tralhão JG. Pancreatic Cancer Biomarkers: Oncogenic Mutations, Tissue and Liquid Biopsies, and Radiomics-A Review. Dig Dis Sci 2023:10.1007/s10620-023-07904-6. [PMID: 36988759 DOI: 10.1007/s10620-023-07904-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 02/24/2023] [Indexed: 03/30/2023]
Abstract
Pancreatic cancer is one of the most fatal malignancies, as approximately 80% of patients are at advanced stages by the time of diagnosis. The main reason for the poor overall survival is late diagnosis that is partially due to the lack of tools for early-stage detection. In addition, there are several challenges in evaluating response to treatment and predicting prognosis. In this article, we do a review of the most common pancreatic cancer biomarkers with emphasis in new and promising approaches. Liquid biopsies seem to have important clinical applications in early detection, screening, prognosis, and longitudinal monitoring of on-treatment patients. Together with biomarkers in imaging, can represent valuable alternative non-invasive tools in order to achieve a more effective management of pancreatic cancer patients.
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Affiliation(s)
- Maria João Amaral
- General Surgery Department, Centro Hospitalar e Universitário de Coimbra, Praceta Mota Pinto, 3000-075, Coimbra, Portugal.
- Faculty of Medicine, University of Coimbra, Coimbra, Portugal.
| | - Rui Caetano Oliveira
- Pathology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
- Clinical Academic Center of Coimbra (CACC), Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
| | - Paulo Donato
- Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- Radiology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - José Guilherme Tralhão
- General Surgery Department, Centro Hospitalar e Universitário de Coimbra, Praceta Mota Pinto, 3000-075, Coimbra, Portugal
- Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- Coimbra Institute for Clinical and Biomedical Research (iCBR) Area of Environment, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra, Coimbra, Portugal
- Biophysics Institute, University of Coimbra, Coimbra, Portugal
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Nakamura Y, Yamashita R, Okamoto W, Komatsu Y, Yuki S, Ueno M, Kato K, Taniguchi H, Kagawa Y, Denda T, Hara H, Esaki T, Moriwaki T, Sunakawa Y, Oki E, Nagashima F, Nishina T, Satoh T, Kawakami H, Yamaguchi K, Ohtsubo K, Kato T, Horita Y, Tsuji A, Yasui H, Goto M, Hamamoto Y, Wakabayashi M, Ikeno T, Shitara K, Bando H, Tsuchihara K, Miki I, Ichiki H, Ohtsu A, Yoshino T. Efficacy of Targeted Trials and Signaling Pathway Landscape in Advanced Gastrointestinal Cancers From SCRUM-Japan GI-SCREEN: A Nationwide Genomic Profiling Program. JCO Precis Oncol 2023; 7:e2200653. [PMID: 36996376 DOI: 10.1200/po.22.00653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/01/2023] Open
Abstract
PURPOSE Genomic profiling programs have been implemented to apply next-generation sequencing (NGS) for facilitating trial enrollment. SCRUM-Japan GI-SCREEN is a large-scale genomic profiling program in advanced gastrointestinal cancers using a validated genomic assay with the goal of facilitating enrollment in targeted clinical trials, generating real-world data, and performing clinicogenomic analysis for biomarker discovery. PATIENTS AND METHODS Genotyping of tumor tissue samples from 5,743 patients with advanced gastrointestinal cancers enrolled in GI-SCREEN was centrally performed with NGS. Patients were enrolled in matched trials of targeted agents affiliated with GI-SCREEN on the basis of genotyping results. RESULTS A total of 11 gastrointestinal cancers were included, with colorectal cancer being the most common. The median age ranged from 59 to 70.5 years across cancer types. Patients enrolled after initiation of first-line treatment had significantly longer overall survival (OS) than that before treatment initiation with a median survival time difference of 8.9 months and a hazard ratio (HR) ranging from 0.25 to 0.73 across cancer types, demonstrating an immortal time bias. One hundred and forty-nine patients received matched therapies in clinical trials on the basis of their identified alterations. Among patients with colorectal cancer harboring actionable alterations, the median OS was significantly longer in patients who received matched therapies in trials than in those who did not (HR, 0.52; 95% CI, 0.26 to 1.01; P = .049). Cancer-specific pathway alterations were significantly associated with shorter survival and related to primary resistance to matched trial therapies. CONCLUSION Our genomic profiling program led to patient enrollment in targeted clinical trials and improved survival of patients with colorectal cancer who received matched therapies in clinical trials. To avoid immortal time bias, precautions are needed when using data from patients who have undergone NGS testing after initiation of the evaluated treatment line.
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Affiliation(s)
- Yoshiaki Nakamura
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center, Hospital East, Kashiwa, Japan
- Translational Research Support Section, National Cancer Center Hospital East, Kashiwa, Japan
| | - Riu Yamashita
- Division of Translational Informatics, Exploratory Oncology Research and Clinical Trial, Center, National Cancer Center, Kashiwa, Japan
| | - Wataru Okamoto
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center, Hospital East, Kashiwa, Japan
- Translational Research Support Section, National Cancer Center Hospital East, Kashiwa, Japan
- Cancer Treatment Center, Hiroshima University Hospital, Hiroshima, Japan
| | - Yoshito Komatsu
- Department of Cancer Center, Hokkaido University Hospital, Sapporo, Japan
| | - Satoshi Yuki
- Department of Gastroenterology and Hepatology, Hokkaido University Hospital, Sapporo, Japan
| | - Makoto Ueno
- Department of Gastroenterology, Hepatobiliary and Pancreatic Medical Oncology Division, Kanagawa Cancer Center, Yokohama, Japan
| | - Ken Kato
- Department of Head and Neck, Esophageal Medical Oncology, National Cancer Center, Hospital, Tokyo, Japan
| | - Hiroya Taniguchi
- Department of Clinical Oncology, Aichi Cancer Center, Nagoya, Japan
| | - Yoshinori Kagawa
- Department of Clinical Oncology, Kansai Rosai Hospital, Amagasaki, Japan
- Department of Gastroenterological Surgery, Osaka General Medical Center, Osaka, Japan
| | - Tadamichi Denda
- Division of Gastroenterology, Chiba Cancer Center, Chiba, Japan
| | - Hiroki Hara
- Department of Gastroenterology, Saitama Cancer Center, Kitaadachi-gun, Japan
| | - Taito Esaki
- Department of Gastrointestinal and Medical Oncology, National Hospital Organization, Kyushu Cancer Center, Fukuoka, Japan
| | - Toshikazu Moriwaki
- Department of Gastroenterology, University of Tsukuba Hospital, Tsukuba, Japan
| | - Yu Sunakawa
- Department of Clinical Oncology, St Marianna University School of Medicine, Kawasaki, Japan
| | - Eiji Oki
- Department of Surgery and Science, Graduate School of Medical Sciences, Kyushu, University, Fukuoka, Japan
| | - Fumio Nagashima
- Department of Medical Oncology, Kyorin University Faculty of Medicine, Mitaka, Japan
| | - Tomohiro Nishina
- Gastrointestinal Medical Oncology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan
| | - Taroh Satoh
- Department of Frontier Science for Cancer and Chemotherapy, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Hisato Kawakami
- Department of Medical Oncology, Kindai University Hospital, Osakasayama, Japan
| | - Kensei Yamaguchi
- Department of Gastroenterological Chemotherapy, Cancer Institute Hospital of Japanese, Foundation for Cancer Research, Tokyo, Japan
| | - Koushiro Ohtsubo
- Division of Medical Oncology, Cancer Research Institute, Kanazawa University, Kanazawa, Japan
| | - Takeshi Kato
- Department of Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Yosuke Horita
- Department of Medical Oncology, Saitama Medical University International Medical Center, Hidaka, Japan
| | - Akihito Tsuji
- Department of Clinical Oncology, Kagawa University Faculty of Medicine, Kita-gun, Japan
| | - Hisateru Yasui
- Department of Medical Oncology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Masahiro Goto
- Cancer Chemotherapy Center, Osaka Medical and Pharmaceutical University Hospital, Takatsuki, Japan
| | - Yasuo Hamamoto
- Keio Cancer Center, Keio University School of Medicine, Tokyo, Japan
| | - Masashi Wakabayashi
- Clinical Research Support Office, National Cancer Center Hospital East, Kashiwa, Japan
| | - Takashi Ikeno
- Clinical Research Support Office, National Cancer Center Hospital East, Kashiwa, Japan
| | - Kohei Shitara
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center, Hospital East, Kashiwa, Japan
| | - Hideaki Bando
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center, Hospital East, Kashiwa, Japan
- Translational Research Support Section, National Cancer Center Hospital East, Kashiwa, Japan
| | - Katsuya Tsuchihara
- Division of Translational Informatics, Exploratory Oncology Research and Clinical Trial, Center, National Cancer Center, Kashiwa, Japan
| | - Izumi Miki
- Translational Research Support Section, National Cancer Center Hospital East, Kashiwa, Japan
| | - Hiroko Ichiki
- Translational Research Support Section, National Cancer Center Hospital East, Kashiwa, Japan
| | - Atsushi Ohtsu
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center, Hospital East, Kashiwa, Japan
| | - Takayuki Yoshino
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center, Hospital East, Kashiwa, Japan
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Emerging Role of Targeted Therapy in Metastatic Pancreatic Adenocarcinoma. Cancers (Basel) 2022; 14:cancers14246223. [PMID: 36551707 PMCID: PMC9776746 DOI: 10.3390/cancers14246223] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/09/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
The aggressive biology of pancreatic ductal adenocarcinoma (PDAC), along with its limited sensitivity to many systemic therapies, presents a major challenge in the management of patients with metastatic PDAC. Over the past decade, the incorporation of combinatorial cytotoxic chemotherapy regimens has improved patient outcomes. Despite these advances, resistance to cytotoxic chemotherapy inevitably occurs, and there is a great need for effective therapies. A major focus of research has been to identify molecularly defined subpopulations of patients with PDAC who may benefit from targeted therapies that are matched to their molecular profile. Recent successes include the demonstration of the efficacy of maintenance PARP inhibition in PDAC tumors harboring deleterious BRCA1, BRCA2, and PALB2 alterations. In addition, while therapeutic targeting of KRAS was long thought to be infeasible, emerging data on the efficacy of KRAS G12C inhibitors have increased optimism about next-generation KRAS-directed therapies in PDAC. Meanwhile, KRAS wild-type PDAC encompasses a unique molecular subpopulation of PDAC that is enriched for targetable genetic alterations, such as oncogenic BRAF alterations, mismatch repair deficiency, and FGFR2, ALK, NTRK, ROS1, NRG1, and RET rearrangements. As more molecularly targeted therapies are developed, precision medicine has the potential to revolutionize the treatment of patients with metastatic PDAC.
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Rémond MS, Pellat A, Brezault C, Dhooge M, Coriat R. Are targeted therapies or immunotherapies effective in metastatic pancreatic adenocarcinoma? ESMO Open 2022; 7:100638. [PMID: 36399952 PMCID: PMC9674888 DOI: 10.1016/j.esmoop.2022.100638] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/17/2022] Open
Abstract
Metastatic pancreatic ductal adenocarcinoma (PDAC) is a major health burden due to its increasing incidence and poor prognosis. PDAC is characterized by a low tumor mutational burden, and its molecular pathogenesis is driven by Kirsten rat sarcoma viral oncogene homolog (KRAS) mutations. Response to DNA damage through homologous repair is defective in 15% of tumors. Chemotherapy using FOLFIRINOX (folinic acid, fluorouracil, irinotecan, oxaliplatin) or gemcitabine-nab-paclitaxel significantly improves life expectancy, but the median overall survival remains <1 year. Targeted therapies are not efficient in the overall population of patients with metastatic PDAC. Improvements in overall survival or progression-free survival, however, have been demonstrated in subgroups carrying certain mutations. Maintenance therapy with poly-ADP-ribose polymerase (PARP) inhibitors increases progression-free survival in patients with germline mutations in BRCA1/2. Sotorasib shows signs of efficacy against tumors carrying the KRAS G12C mutation, and targeted therapies may also benefit patients with KRAS-wild-type PDAC. Combining targeted therapies with chemotherapy holds promise because of potential synergistic effects. These associations, however, have not yet demonstrated clinical benefit. Checkpoint inhibitors are not effective against metastatic PDAC. Combined immunotherapies attempt to restore their efficacy but have not succeeded yet. Other immunotherapies are emerging such as therapeutic vaccines or chimeric antigen receptor (CAR) T cells, but these strategies remain to be evaluated in large trials. In the future, treatment personalization based on tumor-derived organoids could potentially further improve treatment efficiency.
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Affiliation(s)
- M S Rémond
- Department of Gastroenterology, Cochin Hospital, Université de Paris, Assistance Publique-Hôpitaux de Paris, Paris, France.
| | - A Pellat
- Department of Gastroenterology, Cochin Hospital, Université de Paris, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - C Brezault
- Department of Gastroenterology, Cochin Hospital, Université de Paris, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - M Dhooge
- Department of Gastroenterology, Cochin Hospital, Université de Paris, Assistance Publique-Hôpitaux de Paris, Paris, France
| | - R Coriat
- Department of Gastroenterology, Cochin Hospital, Université de Paris, Assistance Publique-Hôpitaux de Paris, Paris, France
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McLean B, Istadi A, Clack T, Vankan M, Schramek D, Neely GG, Pajic M. A CRISPR Path to Finding Vulnerabilities and Solving Drug Resistance: Targeting the Diverse Cancer Landscape and Its Ecosystem. ADVANCED GENETICS (HOBOKEN, N.J.) 2022; 3:2200014. [PMID: 36911295 PMCID: PMC9993475 DOI: 10.1002/ggn2.202200014] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 10/11/2022] [Indexed: 11/11/2022]
Abstract
Cancer is the second leading cause of death globally, with therapeutic resistance being a major cause of treatment failure in the clinic. The dynamic signaling that occurs between tumor cells and the diverse cells of the surrounding tumor microenvironment actively promotes disease progression and therapeutic resistance. Improving the understanding of how tumors evolve following therapy and the molecular mechanisms underpinning de novo or acquired resistance is thus critical for the identification of new targets and for the subsequent development of more effective combination regimens. Simultaneously targeting multiple hallmark capabilities of cancer to circumvent adaptive or evasive resistance may lead to significantly improved treatment response in the clinic. Here, the latest applications of functional genomics tools, such as clustered regularly interspaced short palindromic repeats (CRISPR) editing, to characterize the dynamic cancer resistance mechanisms, from improving the understanding of resistance to classical chemotherapeutics, to deciphering unique mechanisms that regulate tumor responses to new targeted agents and immunotherapies, are discussed. Potential avenues of future research in combating therapeutic resistance, the contribution of tumor-stroma signaling in this setting, and how advanced functional genomics tools can help streamline the identification of key molecular determinants of drug response are explored.
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Affiliation(s)
- Benjamin McLean
- The Kinghorn Cancer CentreThe Garvan Institute of Medical Research384 Victoria St, DarlinghurstSydneyNew South Wales2010Australia
| | - Aji Istadi
- The Kinghorn Cancer CentreThe Garvan Institute of Medical Research384 Victoria St, DarlinghurstSydneyNew South Wales2010Australia
| | - Teleri Clack
- Dr. John and Anne Chong Lab for Functional GenomicsCharles Perkins CentreCentenary InstituteUniversity of SydneyCamperdownNew South Wales2006Australia
| | - Mezzalina Vankan
- Dr. John and Anne Chong Lab for Functional GenomicsCharles Perkins CentreCentenary InstituteUniversity of SydneyCamperdownNew South Wales2006Australia
| | - Daniel Schramek
- Centre for Molecular and Systems BiologyLunenfeld‐Tanenbaum Research InstituteMount Sinai HospitalTorontoOntarioM5G 1X5Canada
- Department of Molecular GeneticsFaculty of MedicineUniversity of TorontoTorontoOntarioM5S 1A8Canada
| | - G. Gregory Neely
- Dr. John and Anne Chong Lab for Functional GenomicsCharles Perkins CentreCentenary InstituteUniversity of SydneyCamperdownNew South Wales2006Australia
| | - Marina Pajic
- The Kinghorn Cancer CentreThe Garvan Institute of Medical Research384 Victoria St, DarlinghurstSydneyNew South Wales2010Australia
- St Vincent's Clinical SchoolFaculty of MedicineUniversity of NSW SydneySydneyNew South Wales2052Australia
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O'Kane GM, Lowery MA. Moving the Needle on Precision Medicine in Pancreatic Cancer. J Clin Oncol 2022; 40:2693-2705. [PMID: 35839440 DOI: 10.1200/jco.21.02514] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 03/20/2022] [Accepted: 04/18/2022] [Indexed: 12/21/2022] Open
Abstract
The management of pancreatic ductal adenocarcinoma (PDAC) has posed a considerable challenge for decades, with incidence and mortality rates almost mirroring each other. Despite this, a deeper understanding of the complex biology inherent to PDAC has provided a roadmap for a more precise approach to treatment. PDAC deficient in homologous recombination repair and mismatch repair is a subgroup that should be identified in the clinic for a targeted approach. In addition, KRAS wild-type PDAC, occurring in approximately 10% of patients, is enriched in highly actionable alterations including fusions, underscoring the importance of integrative germline and somatic sequencing. Comprehensive sequencing efforts over the past decade have documented genomic- and transcriptomic-based classifiers, with the latter emerging as two main subtypes: the classical and basal-like, which are now being evaluated in clinical trials. Together with promising, innovative strategies to target KRAS mutations and their pleotropic effects, a new era of precision medicine in PDAC is on the horizon.
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Affiliation(s)
- Grainne M O'Kane
- Trinity St James Cancer Institute, Dublin, Ireland
- Wallace McCain Centre for Pancreatic Cancer, Princess Margaret Cancer Centre, Toronto, ON, Canada
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