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Pourvaziri A, Parakh A, Biondetti P, Sahani D, Kambadakone A. Abdominal CT manifestations of adverse events to immunotherapy: a primer for radiologists. Abdom Radiol (NY) 2020; 45:2624-2636. [PMID: 32451672 DOI: 10.1007/s00261-020-02531-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Immunotherapy is a rapidly growing field within oncology and is being increasingly used in the management of several malignancies. Due to their unique mechanism of action on the immune system and neoplastic cells, the response pattern and adverse events of this novel therapy are distinct from conventional systemic therapies. Accordingly, the imaging appearances following immunotherapy including adverse events are unique and at times perplexing. Imaging is integral to management of patients on immunotherapeutic agents and a thorough understanding of its mechanism, response patterns and adverse events is crucial for precise interpretation of imaging studies. This review provides a description of the mechanism of action of current immunotherapeutic agents and the organ-wise description of their side effects.
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Affiliation(s)
- Ali Pourvaziri
- Division of Abdominal Imaging, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, White 270, Boston, MA, 02114, USA
| | - Anushri Parakh
- Division of Abdominal Imaging, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, White 270, Boston, MA, 02114, USA
| | - Pierpaolo Biondetti
- Division of Abdominal Imaging, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, White 270, Boston, MA, 02114, USA
| | - Dushyant Sahani
- Department of Radiology, University of Washington, UWMC Radiology RR218, 1959 NE Pacific St, Seattle, WA, 98195, USA
| | - Avinash Kambadakone
- Division of Abdominal Imaging, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, White 270, Boston, MA, 02114, USA.
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Xie L, Xu J, Sun X, Liu K, Li X, He F, Liu X, Gu J, Lv Z, Yang R, Tang X, Yan T, Li D, Yang Y, Dong S, Sun K, Shen D, Guo W. Apatinib for Treatment of Inoperable Metastatic or Locally Advanced Chondrosarcoma: What We Can Learn About the Biological Behavior of Chondrosarcoma from a Two-Center Study. Cancer Manag Res 2020; 12:3513-3525. [PMID: 32547189 PMCID: PMC7237692 DOI: 10.2147/cmar.s253201] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/05/2020] [Indexed: 12/26/2022] Open
Abstract
Purpose For patients who have chondrosarcoma in the unresectable setting, antiangiogenic agents are reportedly effective. This multicenter, retrospective study investigated the antitumor activity of apatinib in patients with unresectable chondrosarcoma to gain insight into the biological behavior of this disease. Methods All of the patients with unresectable chondrosarcoma who were diagnosed between October 1, 2009, and November 1, 2019, in two sarcoma centers affiliated with Peking University were evaluated. Relevant information was collected from the medical records at both centers, from which patients receiving apatinib for systemic therapy were selected for analysis. Results In total, efficacy analysis was conducted in 33 patients with a median follow-up time of 22.1 (Q1, Q3, 14.6, 23.0) months. There were 20/33 (60.0%) conventional chondrosarcomas (grades 2–3), 5/33 (15.2%) dedifferentiated chondrosarcomas, 4/33 (12.1%) mesenchymal chondrosarcomas, 3/33 (9.1%) extraskeletal myxoid chondrosarcoma, and 1/33 (3.1%) clear-cell chondrosarcomas with 87.9% in metastatic and 12.1% in locally advanced states. The objective response rate was 6/33 (18.2%). The median progression-free survival (PFS) was 12.4 months (Q1, Q3, 7.0, 21.2), while the median overall survival has not yet been reached. Rare variants of chondrosarcoma tended to have a longer PFS than conventional chondrosarcoma (P=0.06). Based on clinicopathological factors Cox and univariate analysis, only extraskeletal myxoid chondrosarcoma and baseline target lesions <60 mm benefited from the drug apatinib (P=0.14 and P=0.00), respectively. Grade 3 or higher adverse events were frequent in 11/33 (39.3%) of patients who discontinued apatinib due to deterioration of their general condition. Conclusion Apatinib had clinically meaningful activity in patients with inoperable high-grade chondrosarcoma. However, special caution should be made in managing toxicity due to the indolent behavior and slow growth pattern after using this drug. Patients with a smaller tumor size and extraskeletal myxoid chondrosarcoma subtype might benefit from this therapy more. Clinical Trial Registration Registered February 7, 2020, with clinicaltrials.gov: NCT04260113.
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Affiliation(s)
- Lu Xie
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Jie Xu
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Xin Sun
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Kuisheng Liu
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Xiaowei Li
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Fangzhou He
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Xinyu Liu
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Jin Gu
- Surgical Oncology, Peking University Shougang Hospital, Beijing, People's Republic of China
| | - Zhe Lv
- Radiology Department, Peking University Shougang Hospital, Beijing, People's Republic of China
| | - Rongli Yang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Xiaodong Tang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Taiqiang Yan
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Dasen Li
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Yi Yang
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Sen Dong
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
| | - Kunkun Sun
- Pathology Department, Peking University People's Hospital, Beijing, People's Republic of China
| | - Danhua Shen
- Pathology Department, Peking University People's Hospital, Beijing, People's Republic of China
| | - Wei Guo
- Musculoskeletal Tumor Center, Peking University People's Hospital, Beijing, People's Republic of China
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