1
|
Perez K, Jacene H, Hornick JL, Ma C, Vaz N, Brais LK, Alexander H, Baddoo W, Astone K, Esplin ED, Garcia J, Halperin DM, Kulke MH, Chan JA. SDHx mutations and temozolomide in malignant pheochromocytoma and paraganglioma. Endocr Relat Cancer 2022; 29:533-544. [PMID: 35731023 DOI: 10.1530/erc-21-0392] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 06/22/2022] [Indexed: 12/24/2022]
Abstract
Malignant pheochromocytomas (PHEOs)/paragangliomas (PGLs) are rare tumors for which clinical outcomes remain poorly defined and therapeutic options are limited. Approximately 27% carry pathogenic germline succinate dehydrogenase (SDHx) mutations; the presence of such mutations has been correlated with response to temozolomide (TMZ). We aimed to investigate the association between germline mutations in SDHx and response to TMZ. We retrospectively identified patients with metastatic malignant PHEO/PGLs treated with TMZ- based chemotherapy at Dana-Farber Cancer Institute between 2003 and 2020. The correlation between response by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1 and PET Response Criteria in Solid Tumors (PERCIST) and the presence of SDHx mutations in the germline and tumor was evaluated. Nineteen patients received TMZ. Seventeen underwent germline assessment: 9 (53%) carried a pathogenic SDHx germline mutation. Fifteen patients were evaluable for response by RECIST 1.1: 6 (40%) partial response, 4 (27%) stable disease, and 5 (33%) progressive disease. Overall median progression-free survival was 2.2 years. Three-year overall survival (OS) was 58%. Median PFS was 1.3 years and 5.5 years for carriers and non-carriers, respectively and OS was 1.5 years and not estimable for carriers and non-carriers, respectively. The response by PERCIST criteria in nine patients correlated with the RECIST 1.1 assessment. Our series represents one of the largest analyses of patients with malignant PHEOs/PGLs treated with TMZ who have available germline data. The incidence of pathogenic germline SDHx mutations was similar to what has been previously published, though our analysis suggests that there may be a limited association between response to TMZ and pathogenic germline SDHx mutations.
Collapse
Affiliation(s)
- Kimberly Perez
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| | - Heather Jacene
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Imaging, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Jason L Hornick
- Harvard Medical School, Boston, Massachusetts, USA
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Chao Ma
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Nuno Vaz
- Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Lauren K Brais
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Holly Alexander
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - William Baddoo
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | - Kristina Astone
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
| | | | - John Garcia
- Invitae Corporation, San Francisco, California, USA
| | - Daniel M Halperin
- Department of Medical Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Matthew H Kulke
- Section of Hematology and Oncology, Boston University and Boston Medical Center, Boston, Massachusetts, USA
| | - Jennifer A Chan
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
2
|
Kandathil A, Subramaniam RM. FDG PET/CT for Primary Staging of Lung Cancer and Mesothelioma. Semin Nucl Med 2022; 52:650-661. [PMID: 35738910 DOI: 10.1053/j.semnuclmed.2022.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/11/2022]
Abstract
Lung cancer is the leading cause of cancer-related mortality in the United States. Accurate staging at initial diagnosis determines appropriate treatment and is the most important predictor of survival. Since 2018, the 8th edition of the TNM staging system has been used to stage lung cancer based on local tumor extent (T), nodal involvement (N), and metastases (M). 18 F fluorodeoxyglucose (FDG) PET/CT, which combines functional and anatomic imaging, is the standard of care and an integral part of clinical staging of patients with lung cancer. Malignant pleural mesothelioma (MPM), the most common primary malignant pleural tumor affecting the pleura is staged with 8th edition of TNM staging for MPM. 18 F FDG PET/CT is indicated in select patients who are surgical candidates to identify locally advanced tumor, nodal metastases, or extrathoracic metastases, which may preclude surgery.
Collapse
Affiliation(s)
- Asha Kandathil
- Department of Radiology, University of Texas Southwestern Medical Center, Dallas, TX
| | - Rathan M Subramaniam
- Department of Radiology, Duke University, Durham, NC; Department of Medicine, Otago Medical School, University of Otago, Dunedin, New Zealand.
| |
Collapse
|