Head and neck radiotherapy compliance in an underserved patient population

The impact of patient preference in the treatment algorithm for recurrent/metastatic head and neck squamous cell carcinoma

The advent of immune checkpoint inhibitors for recurrent/metastatic head and neck squamous cell carcinoma (RM-HNSCC) has revolutionized the standard of care approach in first-line treatment. The heterogeneity of disease presentation and treatment-related toxicities can be associated with suboptimal patient compliance to oncologic care. Hence, prioritizing quality of life and well-being are crucial aspects to be considered in tailoring the best treatment choice. The aim of our work is to present a short report on the topic of the patient’s preference in regard to treatment and its consequences on quality of life in the recurrent/metastatic setting. According to the literature, there’s an unmet need on how to assess patient attitude in respect to the choice of treatment. In view of the availability of different therapeutic strategies in first-line management of RM-HNSCC, increasing emphasis should be put on integrating patient preferences into the medical decision-making.

Factors Associated with Refusal or Discontinuation of Treatment in Patients with Bladder Cancer: A Cohort Population-Based Study in Taiwan

Cancer treatment causes adverse effects that lead to refusal or discontinuation of treatment. The purposes of this study were to identify 1) the factors associated with and 2) the reasons for refusing and discontinuing treatment in patients with bladder cancer (BC). We conducted a retrospective cohort study in patients diagnosed with BC in Taiwan from 1 January 2014 to 30 June 2019 using a linked cancer registry database. Of the 1247 BC patients in the study cohort, 2.1% reported refusing treatment. Patients with less education and those diagnosed at cancer stage II-IV were more likely to refuse treatment. The major reason for refusing treatment was "patient or the family considered patient's poor physical condition (chronic disease or unstable systemic disease), difficulty in enduring any condition likely to cause physical discomfort from disease treatment". A total of 4.3% of BC patients reported discontinuing treatment. Patients not living in the northern region of Taiwan and those diagnosed at cancer stage II-IV were more likely to terminate treatment before completion. The major reason given for discontinuing treatment was inconvenient transportation. Sufficient social resources and supportive care can help BC patients cope with the physical and psychological burden of treatment.

Association between multidisciplinary team care and the completion of treatment for oral squamous cell carcinoma: A cohort population-based study

OBJECTIVES

This study investigates the relationship between multidisciplinary team care (MDTC) and patient completion of their treatment regimen for oral squamous cell carcinoma (OSCC).

METHODS

We conducted a retrospective cohort study in patients diagnosed with OSCC in Taiwan from 1 January 2016 to 30 June 2018 using a linked cancer registry database.

RESULTS

Of the 969 OSCC MDTC patients in the study cohort, 6.3% reported incomplete treatment, with 1.3% interrupting ongoing treatment and 5.0% terminating definitive treatment. Patients who had advanced-stage disease, experienced primary cancer recurrence or a secondary cancer, or were treated with surgery combined with chemotherapy, radiotherapy or chemoradiotherapy were more likely to terminate treatment before completion. The major reasons for interruption of ongoing treatment included 'patient or their family considered the patient to be in poor physical condition' and 'difficulty enduring physical discomfort caused by treatment'. The major reason for termination of definitive treatment was 'patient or their families or friends experienced negative treatment effects and worried about the side-effects of treatment'.

CONCLUSION

Advanced-stage cancer, recurrence or secondary cancer, and surgery combined with chemotherapy, radiotherapy or chemoradiotherapy negatively affected treatment completion. MDTC allows for shared decision-making to determine the optimal treatment.

The Affordable Care Act: Implications for underserved populations with head & neck cancer

PURPOSE

This study was done to determine the direct impact implementation of the Affordable Care Act (ACA) on patients with Head and Neck Cancer (HNCA) in states that chose to expand Medicaid compared to in states that did not, as well as assess whether this impact varied among different demographic groups.

MATERIALS AND METHODS

The Surveillance, Epidemiology, and End Results (SEER) database was queried for cases of HNCA diagnosed from 2011 to 2014. Rates of uninsured status were compared before and after Medicaid expansion and contrasted between states that did and did not expand coverage, stratified by patient and tumor characteristics, and assessed via multivariate regression.

RESULTS

Overall rates of uninsured status (UR) were decreased by 63.08% in states that expanded coverage (ES) but only by 2.6% in states that did not (NS). In NS, there was an increase in proportion of black patients who were uninsured over the study period (13.7%, p = 0.077) whereas in ES, this proportion decreased by 73.3%. When stratified by primary site, patients with laryngeal cancer had the highest UR with an increase by 16.7% in NS and a decrease by 70.5% in ES. Multivariate analysis yielded predictors of uninsured status including residence in a NS, Hispanic ethnicity, and black race.

CONCLUSIONS

Implementation of the ACA resulted in expanded insurance coverage for patients diagnosed with HNCA concentrated mainly in states that expanded Medicaid coverage and for patients derived from vulnerable populations, including black and Hispanic patients. In states that did not expand Medicaid, vulnerable populations were disproportionately affected.

Premature discontinuation of curative radiation therapy: Insights from head and neck irradiation

Purpose

Factors related to premature discontinuation of curative radiation therapy (PDCRT) are understudied. This study aimed to examine causes and clinical outcomes of PDCRT at our institution by investigating the most common anatomical site associated with PDCRT.

Methods and materials

Among the 161 patients with PDCRT of various anatomic sites at our institution between 2010 and 2017, 36% received radiation to the head and neck region. Pertinent demographic, clinical, and treatment-related data on these 58 patients were collected. Survival was examined using the life-table method and log-rank test.

Results

The majority of patients were male (81%), white (67%), ≥60 years old (59%), living ≥10 miles away from the hospital (60%), single (57%), with Eastern Cooperative Oncology Group score ≥1 (86%), experiencing significant pain issues (67%), and had treatment interruptions in radiation therapy (RT; 66%). The most common reasons for PDCRT were discontinuation against medical advice (33%), medical comorbidity (24%), and RT toxicity (17%). Of the comorbidities leading to PDCRT, 50% was acute cardiopulmonary issues and 43% was infection. The mean follow-up time was 15.9 months, and the 2-year overall survival and disease-specific survival rates were 61% and 78%, respectively. Patients with illicit substance abuse, cardiovascular disease, and Eastern Cooperative Oncology Group score ≥2 had worse survival. A trend toward improved survival with total completed dose ≥50 Gy versus <50 Gy existed (74% versus 44%, respectively; P = .07).

Conclusions

In this largest-to-date, modern analysis of PDCRT, the most common cause of discontinuation was discontinuation against medical advice, which underscores the importance of patient education, optimization of RT symptoms, involvement of social work, and integration of other supportive services early in treatment. Survival remains suboptimal after PDCRT for H&N tumors, with a 2-year overall survival rate of 61%. Completing >50 Gy appears to confer a relative therapeutic benefit.

Management algorithm for HIV-associated parotid lymphoepithelial cysts

We report an evidence-based management algorithm for benign lymphoepithelial cysts (BLEC) of the parotid glands in HIV patients based on long-term outcomes after radiation therapy. From 1987 to 2013, 72 HIV-positive patients with BLEC of the parotid glands treated at our institutions were identified and their medical records were reviewed and analyzed. The primary endpoint of our study was to determine a dose response in HIV patients with BLEC. In group A (≤18 Gy), which received a median dose of 10 Gy (8-18), overall response (OvR), complete response (CR), partial response (PR), and local failure (LF) was experienced by 7, 7, 0, and 93 %, respectively. In group B (≥22.5 Gy), which received a median dose of 24 Gy (22.5-30), OvR, CR, PR, and LF was experienced by 88, 65, 23, and 12 %. Logistic regression revealed that higher dose (≥22.5 Gy) predicted for cosmetic control (p = 0.0003). Multiple regression analysis revealed higher dose predicted for cosmetic control (p = 0.0001) after adjusting for confounding variables (age, gender, race, HAART use, BLEC duration, and fractionation size). No patients in either group experienced RTOG grade ≥3 toxicities. A radiation dose of 24 Gy delivered in 12-16 fractions of 1.5-2 Gy per fraction provides long-term cosmetic control in HIV-positive patients with BLEC of the parotid glands.

Quality assurance in radiotherapy: analysis of the causes of not starting or early radiotherapy withdrawal

BACKGROUND

The aim of this study was to analyse the reasons for not starting or for early of radiotherapy at the Radiation Oncology Department.

METHODS

All radiotherapy treatments from March 2010 to February 2012 were included. Early withdrawals from treatment those that never started recorded. Clinical, demographic and dosimetric variables were also noted.

RESULTS

From a total of 3250 patients treated and reviewed, 121 (4%) did not start or complete the planned treatment. Of those, 63 (52%) did not receive any radiotherapy fraction and 58 (48%) did not complete the course, 74% were male and 26% were female. The mean age was 67 ± 13 years. The most common primary tumour was lung (28%), followed by rectum (16%). The aim of treatment was 62% radical and 38% palliative, 44% of patients had metastases; the most common metastatic site was bone, followed by brain. In 38% of cases (46 patients) radiotherapy was administered concomitantly with chemotherapy (10 cases (22%) were rectal cancers). The most common reason for not beginning or for early withdrawal of treatment was clinical progression (58/121, 48%). Of those, 43% died (52/121), 35 of them because of the progression of the disease and 17 from other causes. Incomplete treatment regimens were due to toxicity (12/121 (10%), of which 10 patients underwent concomitant chemotherapy for rectal cancer).

CONCLUSIONS

The number of patients who did not complete their course of treatment is low, which shows good judgement in indications and patient selection. The most common reason for incomplete treatments was clinical progression. Rectal cancer treated with concomitant chemotherapy was the most frequent reason of the interruption of radiotherapy for toxicity.

A novel nitroxide is an effective brain redox imaging contrast agent and in vivo radioprotector

Individuals are exposed to ionizing radiation during medical procedures and nuclear disasters, and this exposure can be carcinogenic, toxic, and sometimes fatal. Drugs that protect individuals from the adverse effects of radiation may therefore be valuable countermeasures against the health risks of exposure. In the current study, the LD(50/30) (the dose resulting in 50% of exposed mice surviving 30 days after exposure) was determined in control C3H mice and mice treated with the nitroxide radioprotectors Tempol, 3-CP, 16c, 22c, and 23c. The pharmacokinetics of 22c and 23c were measured with magnetic resonance imaging (MRI) in the brain, blood, submandibular salivary gland, liver, muscle, tongue, and myocardium. It was found that 23c was the most effective radioprotector of the five studied: 23c increased the LD(50/30) in mice from 7.9±0.15Gy (treated with saline) to 11.47±0.13Gy (an increase of 45%). Additionally, MRI-based pharmacokinetic studies revealed that 23c is an effective redox imaging agent in the mouse brain, and that 23c may allow functional imaging of the myocardium. The data in this report suggest that 23c is currently the most potent known nitroxide radioprotector, and that it may also be useful as a contrast agent for functional imaging.