RESUMO
BACKGROUND: Assays to identify circulating tumor cells (CTCs) might allow for noninvasive and sequential monitoring of lung cancer. We investigated whether serial CTC analysis could complement conventional imaging for detecting recurrences after treatment in patients with locally advanced non-small-cell lung cancer (LA-NSCLC). PATIENTS AND METHODS: Patients with LA-NSCLC (stage II-III) who definitively received concurrent chemoradiation were prospectively enrolled, with CTCs from peripheral blood samples identified using an adenoviral probe that detects elevated telomerase activity present in nearly all lung cancer cells. A "detectable" CTC level was defined as 1.3 green flourescent protein-positive cells per milliliter of collected blood. Samples were obtained before, during (at weeks 2, 4, and 6), and after treatment (post-radiation therapy [RT]; at months 1, 3, 6, 12, 18, and 24). RESULTS: Forty-eight patients were enrolled. At a median follow-up of 10.9 months, 22 (46%) patients had disease recurrence at a median time of 7.6 months post-RT (range, 1.3-32.0 months). Of the 20 of 22 patients for whom post-RT samples were obtained, 15 (75%) had an increase in CTC counts post-RT. In 10 of these 15 patients, CTCs were undetectable on initial post-RT draw but were then detected again before radiographic detection of recurrence, with a median lead time of 6.2 months and mean lead time of 6.1 months (range, 0.1-12.0 months) between CTC count increase and radiographic evidence of recurrence. One patient with an early recurrence (4.7 months) had persistently elevated detectable CTC levels during and after treatment. CONCLUSION: These results indicate that longitudinal CTC monitoring in patients with LA-NSCLC treated with chemoradiation is feasible, and that detectable CTC levels in many patients meaningfully precede radiologic evidence of disease recurrence.
Assuntos
Carcinoma Pulmonar de Células não Pequenas/diagnóstico , Contagem de Células/métodos , Neoplasias Pulmonares/diagnóstico , Células Neoplásicas Circulantes/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Carcinoma Pulmonar de Células não Pequenas/patologia , Carcinoma Pulmonar de Células não Pequenas/terapia , Quimiorradioterapia , Estudos de Viabilidade , Feminino , Humanos , Neoplasias Pulmonares/patologia , Neoplasias Pulmonares/terapia , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Estadiamento de NeoplasiasRESUMO
BACKGROUND: Stereotactic body radiation therapy (SBRT) is standard for medically inoperable stage I non-small-cell lung cancer (NSCLC) and is emerging as a surgical alternative in operable patients. However, limited long-term outcomes data exist, particularly according to operability. We hypothesized long-term local control (LC) and cancer-specific survival (CSS) would not differ by fractionation schedule, tumor size or location, or operability status, but overall survival (OS) would be higher for operable patients. PATIENTS AND METHODS: All consecutive patients with stage I (cT1-2aN0M0) NSCLC treated with SBRT from June 2009 to July 2013 were assessed. Thoracic surgeon evaluation determined operability. Local failure was defined as growth following initial tumor shrinkage or progression on consecutive scans. LC, CSS, and OS were calculated using Cox proportional hazards regression. RESULTS: A total of 186 patients (204 lesions) were analyzed. Most patients were inoperable (82%) with Eastern Cooperative Oncology Group performance status of 1 (59%) or 2 (26%). All lesions received biological effective doses ≥ 100 Gy most commonly (94%) in 3 to 5 fractions. The median follow-up was 4.0 years. LC at 2 and 5 years were 95.6% (95% confidence interval, 92%-99%) and 93.7% (95% confidence interval, 90%-98%), respectively. Compared with operable patients, inoperable patients did not have significant differences in 5-year LC (93.1% vs. 96.7%; P = .49), nodal failure (31.4% vs. 11.0%; P = .12), distant failure (12.2% vs. 10.4%; P = .98), or CSS (80.6% vs. 91.0%; P = .45) but trended towards worse OS (34.2% vs. 45.3%; P = .068). Tumor size, location, and fractionation did not significantly influence outcomes. CONCLUSIONS: SBRT has excellent, durable LC and CSS rates for early-stage NSCLC, although inoperable patients had somewhat lower OS than operable patients, likely owing to greater comorbidities.
Assuntos
Carcinoma Pulmonar de Células não Pequenas/radioterapia , Neoplasias Pulmonares/radioterapia , Radiocirurgia , Idoso , Idoso de 80 Anos ou mais , Carcinoma Pulmonar de Células não Pequenas/mortalidade , Carcinoma Pulmonar de Células não Pequenas/patologia , Fracionamento da Dose de Radiação , Feminino , Seguimentos , Humanos , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Análise de Sobrevida , Resultado do Tratamento , Carga TumoralRESUMO
PURPOSE: Multimodal treatment of Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL) yields excellent outcomes; however, survivors are at risk of developing myriad late and long-term effects. METHODS: From a convenience sample of 964 survivors of HL (37%) and NHL (63%) using a publicly available Internet-based survivorship care plan (SCP) tool between 2011 and 2016, we examined patient-reported cancer care, toxicities, and survivorship care data. RESULTS: Of all survivors, 67% were female and 84% were white and 88% were free of cancer. Median age of diagnosis was 28 years for survivors of HL and 49 years for NHL. Many survivors reported treatment with chemotherapy (92%), surgery (52%), and/or radiation (41%), with most radiation delivered to chest/mantle fields (81%). Survivors reported a diversity of radiation- and chemotherapy-related sequelae, including thyroid dysfunction, speaking and/or swallowing changes, pulmonary fibrosis/pneumonitis, heart disease, chronic fatigue, neurocognitive decline, neuropathy, sexual changes, and secondary breast cancers. Few reported receipt of previous survivorship information. Most reported management/comanagement by an oncology specialist after active treatment; however, a shift to management by primary care provider alone was observed as a trend over time in follow-up. Sixty-six percent of users who responded to a follow-up survey reported that they intend to share the SCP with their health care team. CONCLUSION: Survivors of lymphoma, many of whom are free of disease, report a substantial burden of late and long-term adverse effects, suboptimal delivery of survivorship information, and transitions of care in follow-up in which fragmented systems and/or poor communication may contribute to unmet survivor needs. Multiple opportunities thus exist for which SCPs may be used to improve awareness regarding survivorship and associated adverse effects in addition to communicating follow-up care plans between survivors and treatment teams.