Favorable patient reported outcomes following IMRT for early carcinomas of the tonsillar fossa: Results from a symptom assessment study

BACKGROUND

A questionnaire-based study was conducted to assess long-term patient reported outcomes (PROs) following definitive IMRT-based treatment for early stage carcinomas of the tonsillar fossa.

METHODS

Participants had received IMRT with or without systemic therapy for squamous carcinoma of the tonsillar fossa (T1-2 and N0-2b) with a minimum follow-up of 2years. Patients completed a validated head and neck cancer-specific PRO instrument, the MD Anderson Symptom Inventory-Head and Neck module (MDASI-HN). Symptoms were compared between treatment groups of interest and overall symptom burden was evaluated.

RESULTS

Of 139 participants analyzed, 51% had received ipsilateral neck IMRT, and 62% single modality IMRT alone (no systemic therapy). There were no differences in mean severity ratings for the top-ranked individual symptoms or symptom interference for those treated with bilateral versus ipsilateral neck IMRT alone. However, 40% of those treated with bilateral versus 25% of those treated with ipsilateral neck RT alone reported moderate-to-severe levels of dry mouth (p=0.03). Fatigue, numbness/tingling, and constipation were rated more severe for those who had received systemic therapy (p<0.05 for each), but absolute differences were small. Overall, 51% had no more than mild symptom ratings across all 22 symptoms assessed.

CONCLUSIONS

The long-term patient reported symptom profile in this cohort of tonsil cancer survivors treated with definitive IMRT-based treatment showed a majority of patients with no more than mild symptoms, low symptom interference, and provides an opportunity for future comparison studies with other treatment approaches.

A Contemporary Analysis of Surgical Trends in the Treatment of Squamous Cell Carcinoma of the Oropharynx from 1998 to 2012: A Report from the National Cancer Database

BACKGROUND

This study examined surgical trends for oropharynx squamous cell carcinoma (OPC) from 1998 to 2012, with a post-2009 focus coinciding with the Food and Drug Administration (FDA) approval of transoral robotic surgery (TORS).

METHODS

Using the National Cancer Data Base, the study analyzed 84,449 patients with stage I-IVB OPC. χ (2) tests and logistic regression models were used to examine surgical trends.

RESULTS

The use of surgery decreased from 41.4 % in 1998 to 30.4 % in 2009 (p < 0.001). The surgical trends reversed and in 2012 increased to 34.8 % (p < 0.001). There was much variation in surgery in 2012 between American Joint Committee on Cancer stages, with 80.2 % of stage I patients receiving surgery compared with 54.0 % of stage II patients, 36.8 % of stage III patients, and 28.5 % of stage IV patients (p < 0.001). Black patients with high socioeconomic status (SES) showed lower use of surgery (25.3 %) compared to low SES white (32.3 %) and low SES Hispanic patients (27.3 %) (p < 0.001). The highest surgical rates were noted in the West North Central region and lowest rates were observed in the New England and South Atlantic regions. Between 2009 and 2012, independent predictors of surgical treatment included young age, female gender, white or Hispanic race, high SES, private insurance, academic hospitals, hospitals in the West North Central region, residence more than 75 miles from the hospital, increasing comorbidities, stage I disease, and tonsil origin (all p < 0.05).

CONCLUSION

Since FDA approval of TORS in 2009, surgical rates have increased with multiple socioeconomic and regional factors affecting patient selection. This study provides a basis for further investigation into factors involved in decision making for OPC patients.

Establishing the characteristics of an effective pharmacogenetic test for clozapine-induced agranulocytosis

Clozapine is the only evidence-based therapy for treatment-resistant schizophrenia, but it induces agranulocytosis, a rare but potentially fatal haematological adverse reaction, in less than 1% of users. To improve safety, the drug is subject to mandatory haematological monitoring throughout the course of treatment, which is burdensome for the patient and one of the main reasons clozapine is underused. Therefore, a pharmacogenetic test is clinically useful if it identifies a group of patients for whom the agranulocytosis risk is low enough to alleviate monitoring requirements. Assuming a genotypic marker stratifies patients into a high-risk and a low-risk group, we explore the relationship between test sensitivity, group size and agranulocytosis risk. High sensitivity minimizes the agranulocytosis risk in the low-risk group and is essential for clinical utility, in particular in combination with a small high-risk group.

Comparative effectiveness in head and neck malignancies

To date, there is limited comparative effectiveness research (CER) in head and neck surgical oncology. Several barriers exist, the most common of which include low patient accrual, selection bias inherent to observational studies, and the difficulty of integrating both clinical and functional outcomes. Areas in need of meaningful CER range from initial evaluation to post-treatment surveillance, as well as the identification and evaluation of significant quality metrics and patient-reported outcomes. Despite existing hurdles, careful study design and statistical analyses can address current gaps in head and neck cancer care.

An audit and feedback system for effective quality improvement in head and neck surgery: Can we become better surgeons?

BACKGROUND

An evaluation system was established for measuring physician performance. This study was designed to determine whether an initial evaluation with surgeon feedback improved subsequent performance.

METHODS

After an evaluation of an initial cohort of procedures (2004-2008), surgeons were given risk-adjusted individual feedback. Procedures in a postfeedback cohort (2009-2010) were then assessed. Both groups were further stratified into high-acuity procedure (HAP) and low-acuity procedure (LAP) groups. Negative performance measures included the length of the perioperative stay (2 days or longer for LAPs and 11 days or longer for HAPs); perioperative blood transfusions; a return to the operating room within 7 days; and readmission, surgical site infections, and mortality within 30 days.

RESULTS

There were 2618 procedures in the initial cohort and 1389 procedures in the postfeedback cohort. Factors affecting performance included the surgeon, the procedure's acuity, and patient comorbidities. There were no significant differences in the proportions of LAPs and HAPs or in the prevalence of patient comorbidities between the 2 assessment periods. The mean length of stay significantly decreased for LAPs from 2.1 to 1.5 days (P = .005) and for HAPs from 10.5 to 7 days (P = .003). The incidence of 1 or more negative performance indicators decreased significantly for LAPs from 39.1% to 28.6% (P < .001) and trended downward for HAPs from 60.9% to 53.5% (P = .081).

CONCLUSIONS

Periodic assessments of performance and outcomes are essential for continual quality improvement. Significant decreases in the length of stay and negative performance indicators were seen after feedback. Therefore, an audit and feedback system may be an effective means of improving quality of care and reducing practice variability within a surgical department.

Recording of brain activity across spatial scales

Brain activity reveals exquisite coordination across spatial scales, from local microcircuits to brain-wide networks. Understanding how the brain represents, transforms and communicates information requires simultaneous recordings from distributed nodes of whole brain networks with single-cell resolution. Realizing multi-site recordings from communicating populations is hampered by the need to isolate clusters of interacting cells, often on a day-to-day basis. Chronic implantation of multi-electrode arrays allows long-term tracking of activity. Lithography on thin films provides a means to produce arrays of variable resolution, a high degree of flexibility, and minimal tissue displacement. Sequential application of surface arrays to monitor activity across brain-wide networks and subsequent implantation of laminar arrays to target specific populations enables continual refinement of spatial scale while maintaining coverage.

Analysis of Charges Associated with Definitive Nonsurgical Therapy for Early-Stage Lateralized Tonsil Cancer

OBJECTIVE

The cost of treatment as it affects comparative effectiveness is becoming increasingly more important. Because cost data are not readily available, we evaluated the charges associated with definitive nonsurgical therapy for early-stage lateralized tonsil cancers.

METHODS

Patients treated with unilateral radiation therapy (RT) for T1 or T2 tonsil cancer between 1995 and 2007 were retrospectively reviewed. Total and radiation-specific charges, from 3 months before to 4 months after radiation, were adjusted for inflation. All facets of treatment were evaluated for significant associations with total billing.

RESULTS

Eighty-four patients were identified. Three-year overall survival, disease-specific survival, and recurrence-free survival were 97 % [95 % confidence interval (CI) 0.88-0.99], 98 % (95 % CI 0.89-1), and 96 % (95 % CI 0.88-0.99), respectively. The median for radiation-specific charges was $60,412 (range $16,811-$84,792). The median for total charges associated with treatment was $109,917 (range $36,680-$231,895). Total billing for treatment was significantly associated with the year of diagnosis (p = 0.008), intensity-modulated radiation therapy versus wedge pair RT (p = 0.005), preradiation direct laryngoscopy (p < 0.0001), chemotherapy (p < 0.0001), gastrostomy tube placement (p = 0.004), and postradiation neck dissection (p = 0.005).

CONCLUSIONS

Although cost data for treatment are not readily available, historically, the recovery rate is approximately 30 %. The charges associated with definitive nonsurgical therapy for early-stage lateralized tonsil cancer have a wide range likely due to treatment-related procedures, the use of chemotherapy, and evolving RT technologies. These benchmark data are important given renewed interested in primary surgery for tonsil cancer. Cost of care, disease control, and functional outcomes will be critical for comparisons of effectiveness when selecting treatment modalities.

Improving the quality of multidisciplinary care for head and neck cancer

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Background: As specialty- and disease-specific treatment recommendations based on the best available evidence and/or expert consensus, clinical practice guidelines such as those set forth by the National Comprehensive Care Network (NCCN) establish the current standard of quality care; adherence to these guidelines can serve as a measure of the quality and effectiveness of care. We aimed to assess multidisciplinary conference (MC) treatment recommendations’ adherence to NCCN head and neck cancer guidelines, while identifying potential areas for quality improvement. Methods: Patients presented with previously untreated head and neck cancers are being prospectively accrued as they are presented at weekly MC. The charts of patients presented between 10/20/2011 and 10/20/2013 were reviewed for clinical data leading up to MC to allow us to assess whether, based on the available information, the recommendations of conference are compliant with NCCN treatment guidelines. Results: Of 556 enrolled patients, 49.1% had oropharyngeal cancer, 28.2% had oral cavity cancer, 19.3% had laryngeal cancer, and 3.4% had nasopharyngeal cancer. For the entire cohort, the mean age at presentation was 58.9 years (16.4 - 89.3). Four hundred forty three patients (79.7%) were men. The recommendations of conference were non-compliant with NCCN treatment guidelines for 6.2% patients (17/273) with oropharyngeal cancer, 13.4% patients with oral cavity cancer (21/157), 0.9% patients (1/107) with laryngeal cancer, and 15.8% patients (3/19) with nasopharyngeal cancer. The most common reasons for non-compliance were recommended treatment of N2 oropharyngeal disease with definitive radiation alone (13 patients) and recommended over-use of induction chemotherapy (14 patients). Conclusions: NCCN guideline compliance can be used to evaluate the quality of head and neck cancer care. We have identified areas for potential improvement within our institution. Further study is needed to evaluate how care that deviates from NCCN guidelines affects patient outcomes.

A genome-wide association study of anorexia nervosa

Anorexia nervosa (AN) is a complex and heritable eating disorder characterized by dangerously low body weight. Neither candidate gene studies nor an initial genome-wide association study (GWAS) have yielded significant and replicated results. We performed a GWAS in 2907 cases with AN from 14 countries (15 sites) and 14 860 ancestrally matched controls as part of the Genetic Consortium for AN (GCAN) and the Wellcome Trust Case Control Consortium 3 (WTCCC3). Individual association analyses were conducted in each stratum and meta-analyzed across all 15 discovery data sets. Seventy-six (72 independent) single nucleotide polymorphisms were taken forward for in silico (two data sets) or de novo (13 data sets) replication genotyping in 2677 independent AN cases and 8629 European ancestry controls along with 458 AN cases and 421 controls from Japan. The final global meta-analysis across discovery and replication data sets comprised 5551 AN cases and 21 080 controls. AN subtype analyses (1606 AN restricting; 1445 AN binge-purge) were performed. No findings reached genome-wide significance. Two intronic variants were suggestively associated: rs9839776 (P=3.01 × 10(-7)) in SOX2OT and rs17030795 (P=5.84 × 10(-6)) in PPP3CA. Two additional signals were specific to Europeans: rs1523921 (P=5.76 × 10(-)(6)) between CUL3 and FAM124B and rs1886797 (P=8.05 × 10(-)(6)) near SPATA13. Comparing discovery with replication results, 76% of the effects were in the same direction, an observation highly unlikely to be due to chance (P=4 × 10(-6)), strongly suggesting that true findings exist but our sample, the largest yet reported, was underpowered for their detection. The accrual of large genotyped AN case-control samples should be an immediate priority for the field.

Factors Affecting Delays to Surgery for Oral Tongue Carcinoma in the National Cancer Data Base

Objectives:

Surgery is the definitive treatment for oral tongue squamous cell carcinoma (OSCC). Studies have described correlates of delayed diagnosis. However, little is known about treatment delays after diagnosis. This study investigates time intervals from diagnosis to surgery for OSCC using the National Cancer Data Base (NCDB).

Methods:

The NCDB was queried for OSCC patients initially treated with surgery in 1998 through 2009. Patients were dichotomized based on time to surgery relative to the median. Chi-square and multivariable logistic regression models were used for statistical analyses.

Results:

A total of 14,270 patients were identified. The median age was 60 years (range, 18-90 years). For all stages, the median time from diagnosis to surgery was 27 days (SD = 42). Factors that predicted a longer interval to surgery included: advanced stage (28 days), Hispanic ethnicity (29 days), lack of health insurance (29 days), treatment at an academic/research facility (29 days), residence >75 miles from the hospital (31 days), treatment in the Middle (29 days) and South Atlantic (28 days) states, and having a referral to a different treating center (30 days). The strongest predictors of time delay were having a referral (odds ratio [OR] 1.97, 95% confidence interval [CI] 1.83-2.13, P < .001) and geographic location (Middle Atlantic: OR 1.83, 95% CI 1.57-2.14, P < .001).

Conclusions:

There is significant variation in the time from diagnosis to surgery for patients with OSCC. Several patient, geographic, and facility factors predict treatment delays. These findings can be used as a benchmark for quality of care and to guide further investigation into whether timing disparities affect outcomes.

Allelic differences between Europeans and Chinese for CREB1 SNPs and their implications in gene expression regulation, hippocampal structure and function, and bipolar disorder susceptibility

Bipolar disorder (BD) is a polygenic disorder that shares substantial genetic risk factors with major depressive disorder (MDD). Genetic analyses have reported numerous BD susceptibility genes, while some variants, such as single-nucleotide polymorphisms (SNPs) in CACNA1C have been successfully replicated, many others have not and subsequently their effects on the intermediate phenotypes cannot be verified. Here, we studied the MDD-related gene CREB1 in a set of independent BD sample groups of European ancestry (a total of 64,888 subjects) and identified multiple SNPs significantly associated with BD (the most significant being SNP rs6785[A], P=6.32 × 10(-5), odds ratio (OR)=1.090). Risk SNPs were then subjected to further analyses in healthy Europeans for intermediate phenotypes of BD, including hippocampal volume, hippocampal function and cognitive performance. Our results showed that the risk SNPs were significantly associated with hippocampal volume and hippocampal function, with the risk alleles showing a decreased hippocampal volume and diminished activation of the left hippocampus, adding further evidence for their involvement in BD susceptibility. We also found the risk SNPs were strongly associated with CREB1 expression in lymphoblastoid cells (P<0.005) and the prefrontal cortex (P<1.0 × 10(-6)). Remarkably, population genetic analysis indicated that CREB1 displayed striking differences in allele frequencies between continental populations, and the risk alleles were completely absent in East Asian populations. We demonstrated that the regional prevalence of the CREB1 risk alleles in Europeans is likely caused by genetic hitchhiking due to natural selection acting on a nearby gene. Our results suggest that differential population histories due to natural selection on regional populations may lead to genetic heterogeneity of susceptibility to complex diseases, such as BD, and explain inconsistencies in detecting the genetic markers of these diseases among different ethnic populations.

Predicting treatment response in psoriasis using serum levels of adalimumab and etanercept: a single-centre, cohort study

BACKGROUND

A substantial proportion of patients with psoriasis do not respond, or lose initial response to tumour necrosis factor-α antagonists. One possible mechanism relates to subtherapeutic drug levels due to an immunogenic antibody response.

OBJECTIVES

To investigate the association between serum adalimumab and etanercept levels, antidrug antibody levels and clinical response in a cohort of patients with psoriasis using a commercially available enzyme-linked immunoassay.

METHODS

In a single-centre cohort of 56 adults with chronic plaque psoriasis initiated on adalimumab or etanercept monotherapy between 2009 and 2011, drug and antidrug antibody levels were measured at the patients' routine clinic reviews (4, 12 and 24 weeks of treatment and the last available observation). Patients' responses at 6 months were stratified into responders [75% reduction in Psoriasis Area and Severity Index from baseline (PASI 75) or Physician's Global Assessment score of 'clear' or 'nearly clear'] and nonresponders (failure to achieve PASI 50).

RESULTS

After 4 weeks, adalimumab levels were significantly higher in responders compared with nonresponders (P = 0·003) and these higher levels were sustained at 12 and 24 weeks. Anti adalimumab antibodies were detected in 25% of nonresponders (two of eight patients, average 22·5 weeks' follow-up) and none of the responders (n = 23, average 26·1 weeks' follow-up). There was no significant association between etanercept levels and clinical response at 4 weeks (P = 0·317) and no antietanercept antibodies were detected. Lack of serum trough levels may have resulted in underestimation of the prevalence of antidrug antibodies.

CONCLUSIONS

Early adalimumab drug level monitoring at 4 weeks may be useful in predicting treatment response and potentially reduce drug exposure (and associated cost) with earlier review of treatment in those with low levels. No conclusions about the value of etanercept drug monitoring can be made due to the paucity of data. Larger studies are now required to assess the clinical utility and cost-effectiveness of these assays in personalizing therapy in psoriasis.

Longitudinal Analysis of Morbidity and Mortality Conference Data for Head and Neck Cancer Patients

Objectives:

Morbidity and mortality (M&M) conferences are an important forum for discussing issues related to patient care and developing potential preventative actions. While this is a valuable educational venue, accurate collection of specific patient events also permits longitudinal analysis of these data that may improve the quality of patient care.

Methods:

We changed our reporting system for M&M conference cases in February 2009 by requiring weekly reporting of events by clinical trainees. A database was created to track specific events and associate them with specific surgeons, trainees, and procedures.

Results:

During a 2-year period, we recorded 330 events (258 patients), which occurred during 4,659 surgical procedures (overall complication rate: 7.1%). Leading categories of complications included hematologic/vascular (89, 26.9%), wound-related (68, 20.6%), technical (55, 16.7%), and respiratory (42, 12.7%). One hundred and seven patients required a return to the operating room for intervention, and 29 patients needed hospital re-admission for continued care. There were 10 mortalities on the service, but 2 of these patients did not have any surgical procedure (overall mortality rate: 0.2%). An initial subset analysis of patients requiring free-flap reconstruction demonstrated 141 complications in 80 patients, which occurred during 672 surgical cases (11.9%).

Conclusions:

Active tracking of M&M conference cases provides a valuable practice-based system for clinical education and internal auditing of the quality of patient care. Continued tracking of these data beyond this initial 2-year foundation will provide a valuable internal benchmark to compare against available data and with institutional/national metrics of quality of care at the department and individual surgeon level.

Estimating the heritability of reporting stressful life events captured by common genetic variants

BACKGROUND

Although usually thought of as external environmental stressors, a significant heritable component has been reported for measures of stressful life events (SLEs) in twin studies. Method We examined the variance in SLEs captured by common genetic variants from a genome-wide association study (GWAS) of 2578 individuals. Genome-wide complex trait analysis (GCTA) was used to estimate the phenotypic variance tagged by single nucleotide polymorphisms (SNPs). We also performed a GWAS on the number of SLEs, and looked at correlations between siblings.

RESULTS

A significant proportion of variance in SLEs was captured by SNPs (30%, p = 0.04). When events were divided into those considered to be dependent or independent, an equal amount of variance was explained for both. This 'heritability' was in part confounded by personality measures of neuroticism and psychoticism. A GWAS for the total number of SLEs revealed one SNP that reached genome-wide significance (p = 4 × 10-8), although this association was not replicated in separate samples. Using available sibling data for 744 individuals, we also found a significant positive correlation of R 2 = 0.08 in SLEs (p = 0.03).

CONCLUSIONS

These results provide independent validation from molecular data for the heritability of reporting environmental measures, and show that this heritability is in part due to both common variants and the confounding effect of personality.

Standardizing treatment: a crisis in cancer care

The Institute of Medicine has emphasized the roles of multidisciplinary treatment planning, evidence-based clinical practice guidelines, and regionalization of healthcare in optimizing the quality of cancer care. We discuss these critical elements as they pertain to head and neck cancer care.

Stripe rust resistance genes in the UK winter wheat cultivar Claire

Stripe rust resistance in the winter wheat cultivar Claire had remained effective in the UK and Europe since its release in 1999 and consequently has been used extensively in wheat breeding programs. However, in 2012, reports indicated that this valuable resistance may now have been compromised. To characterise stripe rust resistance in Claire and determine which genes may still confer effective resistance a cross was made between Claire and the stripe rust susceptible cultivar Lemhi. A genetic linkage map, constructed using SSR, AFLP, DArT and NBS-AFLP markers had a total map length of 1,730 cM. To improve the definition of two quantitative trait loci (QTL) identified on the long arm of chromosome 2D further markers were developed from wheat EST. Stripe rust resistance was evaluated on adult plants under field and glasshouse conditions by measuring the extent of fungal growth and sporulation, percentage infection (Pi) and the necrotic/chlorotic responses of the plant to infection, infection type (IT). Four QTL contributing to stripe rust adult plant resistance (APR) were identified in Claire, QYr.niab-2D.1, QYr.niab-2D.2, QYr.niab-2B and QYr.niab-7B. For Pi QYr.niab-2D.1 explained up to 25.4 % of the phenotypic variation, QYr.niab-2D.2 up to 28.7 %, QYr.niab-2B up to 21.7 % and QYr.niab-7B up to 13.0 %. For IT the percentages of phenotypic variation explained were 23.4, 31.8, 17.2 and 12.6 %, respectively. In addition to the four QTL conferring APR in Claire, a race-specific, seedling expressed resistance gene was identified on chromosome 3B.

Developing a system to track meaningful outcome measures in head and neck cancer treatment

BACKGROUND

The health care industry, including consumers, providers, and payers of health care, recognize the importance of developing meaningful, patient-centered measures. This article describes our experience using an existing electronic medical record largely based on free text formats without structured documentation, in conjunction with tumor registry abstraction techniques, to obtain and analyze data for use in clinical improvement and public reporting.

METHODS

We performed a retrospective analysis of 2467 previously untreated patients treated with curative intent who presented with laryngeal, pharyngeal, or oral cavity cancer in order to develop a system to monitor and report meaningful outcome metrics of head and neck cancer treatment. Patients treated between 1995 and 2006 were analyzed for the primary outcomes of survival at 1 and 2 years, the ability to speak at 1 year posttreatment, and the ability to swallow at 1 year posttreatment.

RESULTS

We encountered significant limitations in clinical documentation because of the lack of standardization of meaningful measures, as well limitations with data abstraction using a retrospective approach to reporting measures. Almost 5000 person-hours were required for data abstraction, quality review, and reporting, at a cost of approximately $134,000. Our multidisciplinary teams document extensive patient information; however, data is not stored in easily accessible formats for measurement, comparison, and reporting.

CONCLUSION

We recommend identifying measures meaningful to patients, providers, and payers to be documented throughout the patients' entire treatment cycle, and significant investment in the improvements to electronic medical records and tumor registry reporting in order to provide meaningful quality measures for the future.

A phase 1 Bayesian dose selection study of bortezomib and sunitinib in patients with refractory solid tumor malignancies

BACKGROUND

This phase 1 trial utilising a Bayesian continual reassessment method evaluated bortezomib and sunitinib to determine the maximum tolerated dose (MTD), dose-limiting toxicities (DLT), and recommended doses of the combination.

METHODS

Patients with advanced solid organ malignancies were enrolled and received bortezomib weekly with sunitinib daily for 4 weeks, every 6 weeks. Initial doses were sunitinib 25 mg and bortezomib 1 mg m(-2). Cohort size and dose level estimation was performed utilising the Escalation with Overdose Control (EWOC) adaptive method. Seven dose levels were evaluated; initially, sunitinib was increased to a goal dose of 50 mg with fixed bortezomib, then bortezomib was increased. Efficacy assessment occurred after each cycle using RECIST criteria.

RESULTS

Thirty patients were evaluable. During sunitinib escalation, DLTs of grade 4 thrombocytopenia (14%) and neutropenia (6%) at sunitinib 50 mg and bortezomib 1.3 mg m(-2) were seen. Subsequent experience showed tolerability and activity for sunitinib 37.5 mg and bortezomib 1.9 mg m(-2). Common grade 3/4 toxicities were neutropenia, thrombocytopenia, hypertension, and diarrhoea. The recommended doses for further study are bortezomib 1.9 mg m(-2) and sunitinib 37.5 mg. Four partial responses were seen. Stable disease >6 months was noted in an additional six patients.

CONCLUSION

Bortezomib and sunitinib are well tolerated and have anticancer activity, particularly in thyroid cancer. A phase 2 study of this combination in thyroid cancer patients is planned.

Adherence to head and neck cancer guidelines: Multidisciplinary conference recommendations and care delivered

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Background: Adherence to clinical guidelines, such as those developed by the National Comprehensive Cancer Network (NCCN), can serve as a quality measure for delivered care. We aimed to determine NCCN guideline compliance of and concordance between multidisciplinary conference (MC) treatment recommendations and treatment received. Methods: A retrospective review of 71 consecutive previously untreated patients from 1/1 to 4/1/2006 evaluated whether MC recommendations were compliant with 2006 NCCN treatment guidelines, what treatment was actually provided, and whether this treatment was congruent with MC recommendations and/or adhered to 2006 NCCN guidelines. Results: TNM staging was documented in 94.4% of MC notes and treatment recommendations were documented for 98.6% of patients. Of enrolled patients, 53% had oropharyngeal cancer, 22.7% had oral cavity cancer, 18.2% had laryngeal cancer, and 6.1% had nasopharyngeal cancer. The mean age at presentation was 57.4 years. Forty-eight patients (72.7%) were men. MC recommendations were not compliant with NCCN guidelines in 7 (10.6%) patients. Reasons for non-compliance were recommended definitive radiation alone for T1/2N2 oropharyngeal cancer (3 patients), recommended over-use of induction chemotherapy (2 patients) or adjuvant therapy (1 patient), and incomplete documentation (1 patient). Actual treatment deviated from MC recommendations in 25 (38.5%) patients, although in 14 of these patients, treatment remained guideline-adherent. Actual treatment was not compliant with guidelines in 9 patients; 4 of these patients had treatment congruent with MC recommendations, which were not NCCN guideline-compliant. Reasons for guideline-discordance in the remaining patients were individual. Conclusions: Discordance with NCCN guidelines for head and neck cancer treatment planning and delivery was observed in this cohort; while some deviations were due to incomplete documentation, areas for improvement were identified. Further study is warranted to determine whether treatment deviating from NCCN guidelines impacts patient outcome.

Adherence to head and neck cancer guidelines: Setting the stage for continual quality improvement

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Background: Adherence to clinical guidelines, such as those developed by the National Comprehensive Cancer Network (NCCN), can serve as a quality measure for delivered care. We aimed to assess multidisciplinary conference (MC) treatment recommendations’ adherence to NCCN head and neck cancer guidelines, while identifying potential areas for quality improvement. Methods: Patients presented with previously un-treated head and neck cancers are being prospectively accrued as they are presented at weekly MC. The charts of patients presented between 10/20/2011 and 6/31/2012 were retrospectively reviewed for clinical data leading up to MC to allow us to assess whether, based on the available information, the recommendations of conference are compliant with NCCN treatment guidelines. Results: We identified 231 eligible patients. TNM staging was documented in 90.9% of MC notes and treatment recommendations were documented for 93.5% of patients; the remainder of presented patients required further evaluation before a treatment plan could be determined. Of 196 enrolled patients, 53% had oropharyngeal cancer, 25% had oral cavity cancer, 18.4% had laryngeal cancer, and 3.6% had nasopharyngeal cancer. For the entire cohort, the mean age at presentation was 59.5 years. One hundred fifty nine patients (81.1%) were men. The recommendations of conference were compliant with NCCN treatment guidelines for 92.3% patients. The main reasons for non-compliance in 15 patients were treatment of T1/2N2 oropharyngeal cancer with definitive radiation alone (6 patients), incomplete documentation (4 patients), and recommended over-use of adjuvant therapy (3 patients) and induction chemotherapy (2 patients). Conclusions: NCCN guideline compliance can be used to evaluate the quality of head and neck cancer care. Although most cases involving deviation resulted from incomplete MC documentation, areas for improvement were identified. Further study is needed to evaluate how care that deviates from NCCN guidelines affects patient outcomes.

Preventing subsequent births for low-income adolescent mothers: an exploratory investigation of mediating factors in intensive case management

We used a quasi-experimental design to examine the impact of intensive case management (ICM) on preventing 3-year subsequent births for low-income adolescent mothers. We used χ(2) and mediation analyses, respectively, to test whether ICM reduced likelihood of subsequent births and whether birth control and perceived social support mediated this relationship. Participants in ICM were less likely to have a subsequent birth within 3 years, but we found no evidence for mediators. This study suggests that ICM may be effective in preventing subsequent births for adolescents.

Depressive disorder moderates the effect of the FTO gene on body mass index

There is evidence that obesity-related disorders are increased among people with depression. Variation in the FTO (fat mass and obesity associated) gene has been shown to contribute to common forms of human obesity. This study aimed to investigate the genetic influence of polymorphisms in FTO in relation to body mass index (BMI) in two independent samples of major depressive disorder (MDD) cases and controls. We analysed 88 polymorphisms in the FTO gene in a clinically ascertained sample of 2442 MDD cases and 809 controls (Radiant Study). In all, 8 of the top 10 single-nucleotide polymorphisms (SNPs) showing the strongest associations with BMI were followed-up in a population-based cohort (PsyCoLaus Study) consisting of 1292 depression cases and 1690 controls. Linear regression analyses of the FTO variants and BMI yielded 10 SNPs significantly associated with increased BMI in the depressive group but not the control group in the Radiant sample. The same pattern was found in the PsyCoLaus sample. We found a significant interaction between genotype and affected status in relation to BMI for seven SNPs in Radiant (P<0.0057), with PsyCoLaus giving supportive evidence for five SNPs (P-values between 0.03 and 0.06), which increased in significance when the data were combined in a meta-analysis. This is the first study investigating FTO and BMI within the context of MDD, and the results indicate that having a history of depression moderates the effect of FTO on BMI. This finding suggests that FTO is involved in the mechanism underlying the association between mood disorders and obesity.

Precipitating and perpetuating factors of rheumatoid arthritis immunopathology: linking the triad of genetic predisposition, environmental risk factors and autoimmunity to disease pathogenesis

Rheumatoid arthritis (RA) is considered to occur when genetic and environmental factors interact to trigger immunopathological changes and consequently an inflammatory arthritis. Over the last few decades, epidemiological and genetic studies have identified a large number of risk factors for RA development, the most prominent of which comprise cigarette smoking and the shared epitope alleles. These risks appear to differ substantially between anti-cyclic citrullinated peptide (ACPA)-positive and ACPA-negative disease. In this article, we will summarise the risk factors for RA development that have currently been identified, outlining the specific gene-environment and gene-gene interactions that may occur to precipitate and perpetuate autoimmunity and RA. We will also focus on how this knowledge of risk factors for RA may be implemented in the future to identify individuals at a high risk of disease development in whom preventative strategies may be undertaken.