Geriatric assessment may help decision-making in elderly patients with inoperable, locally advanced non-small-cell lung cancer.

BACKGROUND: Although concurrent chemoradiotherapy (cCRT) increases survival in patients with inoperable, locally advanced non-small-cell lung cancer (NSCLC), there is no consensus on the treatment of elderly patients. The aim of this study was to determine the prognostic value of the comprehensive geriatric assessment (CGA) and its ability to predict toxicity in this setting. METHODS: We enrolled 85 consecutive elderly (⩾75 years) participants, who underwent CGA and the Vulnerable Elders Survey (VES-13). Those classified as fit and medium-fit by CGA were deemed candidates for cCRT (platinum-based chemotherapy concurrent with thoracic radiation therapy), while unfit patients received best supportive care. RESULTS: Fit (37%) and medium-fit (48%) patients had significantly longer median overall survival (mOS) (23.9 and 16.9 months, respectively) than unfit patients (15%) (9.3 months, log-rank P=0.01). In multivariate analysis, CGA groups and VES-13 were independent prognostic factors. Fit and medium-fit patients receiving cCRT (n=54) had mOS of 21.1 months (95% confidence interval: 16.2, 26.0). In those patients, higher VES-13 (⩾3) was associated with shorter mOS (16.33 vs 24.3 months, P=0.027) and higher risk of G3-4 toxicity (65 vs 32%, P=0.028). CONCLUSIONS: Comprehensive geriatric assessment and VES-13 showed independent prognostic value. Comprehensive geriatric assessment may help to identify elderly patients fit enough to be treated with cCRT.

Factors Predicting Adherence to a Tailored-Dose Adjuvant Treatment on the Basis of Geriatric Assessment in Elderly People With Colorectal Cancer: A Prospective Study.

BACKGROUND: Selecting elderly people with colorectal cancer (CRC) for adjuvant chemotherapy is challenging. Comprehensive geriatric assessment (CGA) can help by classifying them according to their frailty profile. The supposed benefit of chemotherapy is on the basis of the rate of treatment adherence. In this study we evaluated tolerance and adherence to tailored-dose adjuvant therapy on the basis of CGA in a cohort of older patients with high-risk stage II and stage III CRC. PATIENTS AND METHODS: This was a prospective study in 193 consecutive patients aged 75 years or older. On the basis of CGA results, we classified patients as fit, medium fit, or unfit, administering standard therapy, adjusted treatment, and best supportive care, respectively. We recorded planned chemotherapy, toxicity, and completion of the treatment. A logistic multivariate analysis was carried out. RESULTS: Seventeen (15%) of the 141 candidates for chemotherapy (n = 86 fit and n = 55 medium fit) refused treatment; associated factors included polypharmacy (odds ratio [OR], 5.34; 95% confidence interval [CI], 1.55-18.40) and rectal location (OR, 5.61; 94% CI, 1.45-21.49). Of the 105 (74%) patients receiving chemotherapy, 20 (27%) fit and 4 (13%) medium fit patients experienced Grade 3 to 4 toxicity (P = .11) without association to explanatory variables. Approximately 55% of patients treated with chemotherapy received at least 80% of the planned dose (55% fit and 58% medium fit patients; P = .7). Factors associated with completion of chemotherapy were the absence of toxicity (OR, 7.67; 95% CI, 2.41-24.43) and social support (OR, 2.29; 95% CI, 0.08-1.04). CONCLUSION: CGA is useful for selecting elderly patients for adjuvant chemotherapy, adapting the dose to their frailty profile, and identifying adherence-related factors amenable to modification through CGA-based interventions.

Optimization of RAS/BRAF Mutational Analysis Confirms Improvement in Patient Selection for Clinical Benefit to Anti-EGFR Treatment in Metastatic Colorectal Cancer.

In metastatic colorectal cancer (mCRC), recent studies have shown the importance to accurately quantify low-abundance mutations of the RAS pathway because anti-EGFR therapy may depend on certain mutation thresholds. We aimed to evaluate the added predictive value of an extended RAS panel testing using two commercial assays and a highly sensitive and quantitative digital PCR (dPCR). Tumor samples from 583 mCRC patients treated with anti-EGFR- (n = 255) or bevacizumab- (n = 328) based therapies from several clinical trials and retrospective series from the TTD/RTICC Spanish network were analyzed by cobas, therascreen, and dPCR. We evaluated concordance between techniques using the Cohen kappa index. Response rate, progression-free survival (PFS), and overall survival (OS) were correlated to the mutational status and the mutant allele fraction (MAF). Concordance between techniques was high when analyzing RAS and BRAF (Cohen kappa index around 0.75). We observed an inverse correlation between MAF and response in the anti-EGFR cohort (P < 0.001). Likelihood ratio analysis showed that a fraction of 1% or higher of any mutated alleles offered the best predictive value. PFS and OS were significantly longer in RAS/BRAF wild-type patients, independently of the technique. However, the predictability of both PFS and OS were higher when we considered a threshold of 1% in the RAS scenario (HR = 1.53; CI 95%, 1.12-2.09 for PFS, and HR = 1.9; CI 95%, 1.33-2.72 for OS). Although the rate of mutations observed among techniques is different, RAS and BRAF mutational analysis improved prediction of response to anti-EGFR therapy. Additionally, dPCR with a threshold of 1% outperformed the other platforms. Mol Cancer Ther; 16(9); 1999-2007. ©2017 AACR.

Salvage surgery after head and neck squamous cell carcinoma treated with bioradiotherapy.

BACKGROUND: The purpose of this study was to describe the results and complications of primary site salvage surgery after head and neck squamous cell carcinoma (HNSCC) treated with bioradiotherapy. METHODS: We conducted a retrospective chart review of 268 patients treated with bioradiotherapy between March 2006 and December 2013 at the Hospital Universitari de Bellvitge-ICO. RESULTS: Fifty-nine patients developed local recurrence or had residual disease with a 1-year and 3-year overall survival of 47% and 15.4%, respectively. Salvage surgery was feasible in 22 patients (37.3%). There were 16 complications in these 22 patients (72.7%), 11 (50%) of which were major. Bilateral neck dissection was identified as a risk factor for complications. CONCLUSION: Salvage surgery after bioradiotherapy is associated with a high rate of complications. Neck dissection seems to be related to an increased rate of complications with no survival improvement. © 2016 Wiley Periodicals, Inc. Head Neck 39: 116-121, 2017.

Interobserver variability in target volume delineation in postoperative radiochemotherapy for gastric cancer. A pilot prospective study.

INTRODUCTION: The aim of this study is to determine the interobserver variability (IV) between radiation oncologists (RO) in target volume delineation for postoperative gastric cancer (GC) radiotherapy planning. MATERIALS AND METHODS: Four physicians were asked to delimitate clinical target volume (CTV) on the same 3D CT images in 9 postoperative radiochemotherapy GC patients. Instructions were given to include tumour bed, remaining stomach, anastomosis, duodenal loop and local lymph nodes. The principal variable was spatial volume discrepancy between the main observer (called "A") and other observers (all called "B"), which were compared using the mathematical formula A⌣B/A⌢B, applied to the 3D CT images using Boolean operators. Analysis of variance with two random effects (observers and patients) was performed. RESULTS: Mean volumes were 1410 cm(3) for OBA, 1231 cm(3) for OB2, 734.6 cm(3) for OB3 and 1350 cm(3) for OB4. Discrepancies were 519.9±431.6 cm(3) for OB2, 652.1±294.36 cm(3) for OB3 and 225.90±237.07 cm(3) for OB4. Standard deviation ascribed to patients as random effect was 898.6 cm(3) and that ascribed to observers was 198.10 cm(3), considered as a statistically significant difference. CONCLUSIONS: A significant IV in target delineation that can be attributed to many factors depends more on patients' characteristics than RO delineating decisions.

(125)I episcleral plaque brachytherapy in the treatment of choroidal melanoma: a single-institution experience in Spain.

PURPOSE: To analyze the results of episcleral plaque brachytherapy from the Catalan Institute of Oncology in Spain. MATERIALS AND METHODS: From September 1996 through December 2004, 120 patients with choroidal melanoma (median age, 59 years) were treated with iodine-125 seeds at our institution. Patients were classified according to the criteria developed by the Collaborative Ocular Melanoma Study (COMS) group, as follows-COMS-I: 3 patients; COMS-II: 87 patients; COMS-III: 24 patients; and indeterminate COMS: 9 patients. Followup ranged from 1 year to 8.4 years. RESULTS: Overall survival at 5 and 8 years was 83.9% and 73.3%, respectively. The 5- and 8-year specific survival rate was 85.7%. Local control was 88.2% and 72.7% at 5 and 8 years, respectively. The most common treatment-related toxicity was cataract formation (31.6% of cases), followed by radiation retinopathy (7.5%) and retinal detachment (4.1%). CONCLUSION: The results of this institutional retrospective study confirm that the use of iodine-125 episcleral plaques to treat choroidal melanoma offers the potential for conserving a functioning eyeball. The toxicity profile is favorable and disease control is similar to other techniques.

Twice-a-day radiotherapy for head and neck cancer: the Catalan Institute of Oncology experience.

PURPOSE: The purpose of this work is to evaluate the contribution of hyperfractionated radiotherapy (RT) in head and neck cancer by sub-localisation. PATIENTS AND METHODS: From 1992 to 1999, 318 patients with squamous head and neck tumours treated by hyperfraction RT were analysed according to their sub-localisation and stage. Fractions used were 1.2 Gy twice-a-day with a curative intent on all patients, to a total mean dose of 79.14 Gy. Treatment protocols by localisation were: larynx: 55 patients with T2N0 and T1-2N1 tumours treated with only RT and 27 patients with T3N0-1 in complete remission after three cycles of induction chemotherapy (ICT); hypopharynx: 29 patients with T2-4N0-2b resectable tumors in response to three cycles of ICT; oropharynx: 48 patients with T2-3N0-1 and T1N1 tumours treated with only RT; 34 patients with nasopharynx tumours treated with RT and three cycles of ICT if T4 or >N1; finally, 125 patients with non-surgical tumours of any localisation treated with four cycles of induction CT and RT. RESULTS: LARYNX: Actuarial local control (LC), disease-free survival (DFS) and overall survival (OS) at 5 years were 78, 73 and 48%, respectively, in T2 tumours and 75, 72 and 60% in stage III disease. HYPOPHARYNX: Actuarial LC, DFS and OS at 4 years were 44, 39 and 35%, respectively. OROPHARYNX: Actuarial LC, DFS and OS at 5 years were 52, 44 and 31%, respectively. NASOPHARYNX: Actuarial LC, DFS and OS at 5 years were 78, 72 and 78%, respectively. NON-SURGICAL TUMORS: Actuarial LC, DFS and OS at 5 years were 39, 33 and 19%, respectively. A total of 47 patients (14.8%) of the overall group had a second tumour, 72% of them tobacco-related. Only patients with nasopharynx tumours had a low incidence of second tumours. CONCLUSIONS: Twice-a-day external RT can be effectively managed in patients with head and neck cancer. Second neoplasm and intercurrent diseases become an important problem in low and medium stages whereas disease recurrences is the main problem in advanced stages. Results by localisation permit to obtain conclusions about their indications in each one.