Short-course Versus Long-course Neoadjuvant Therapy for Non-metastatic Rectal Cancer: Patterns of Care and Outcomes From the National Cancer Database
| Autor: | Einsley-Marie Janowski, Taylor C. Jones, Mark R. Waddle, Daniel M. Trifiletti, Sunil W. Dutta, Clayton E. Alonso |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male Time Factors Multivariate analysis Databases Factual Colorectal cancer medicine.medical_treatment Adenocarcinoma 030230 surgery computer.software_genre 03 medical and health sciences 0302 clinical medicine medicine Humans Short course Practice Patterns Physicians' Neoadjuvant therapy Aged Retrospective Studies Aged 80 and over Patterns of care Chemotherapy Database Rectal Neoplasms business.industry Gastroenterology Cancer Chemoradiotherapy Adjuvant Middle Aged Prognosis medicine.disease Neoadjuvant Therapy Survival Rate Radiation therapy Oncology 030220 oncology & carcinogenesis Female business Delivery of Health Care computer Follow-Up Studies |
| Zdroj: | Clinical Colorectal Cancer. 17:297-306 |
| ISSN: | 1533-0028 |
| Popis: | The purpose of this study was to compare the utilization, pathologic response, and overall survival (OS) between long-course neoadjuvant chemoradiation (LC-CRT) and short-course neoadjuvant radiation (SC-RT) in the treatment of non-metastatic rectal cancer.Retrospective data was obtained from the National Cancer Database (NCDB) for patients diagnosed with clinical stage II or III (limited to T3, any N or T1-2, N1-2) rectal cancer between 2004 and 2014 (28,193 patients). Univariate and multivariate analyses were performed to investigate factors associated with receipt of SC-RT, pathologic complete response (pCR) rate, and OS. Patients were compared based on the neoadjuvant therapy they received prior to tumor resection. SC-RT was defined as 25 Gy given over 1 week prior to surgery (with or without chemotherapy as part of their treatment course). LC-CRT was defined as 45 to 60 Gy given over 5 to 6 weeks (with chemotherapy) prior to surgery.A total of 27,988 (99%) of patients received LC-CRT, and 205 (1%) patients received SC-RT. Receipt of SC-RT was associated with older age, more comorbidities, and treatment at an academic facility (P .001 for each). Additional days from radiation completion to surgery was associated with a higher pCR rate (P .001 for both). LC-CRT did not lead to increased OS compared with SC-RT (P = .517).In this United States database study, there was no improvement in OS for patients receiving LC-CRT compared with SC-RT; however, a longer interval between radiation therapy and surgery led to a higher pCR rate. Academic facilities were more likely to utilize SC-RT compared with other facilities. |
| Databáze: | OpenAIRE |
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