Palliative radiation therapy for head and neck cancer: toward an optimal fractionation scheme

Radiation Therapy Oncology Group 8502 "QUAD shot" regimen using volumetric modulated arc therapy for incurable head and neck cancer

OBJECTIVES

We aimed to evaluate the outcomes of the Radiation Therapy Oncology Group 8502 "QUAD shot" regimen using volumetric modulated arc therapy (VMAT) for incurable head and neck cancer (HNC).

MATERIALS AND METHODS

We included 105 patients with HNC in the study, undergoing at least one QUAD shot regimen cycle. We planned the radiotherapy using VMAT with 6 MV photons. One QUAD shot cycle included 14.8 Gy in 4 fractions with at least 6-hour intervals over 2 consecutive days, repeated every 3-6 weeks up to 3 cycles.

RESULTS

We completed 1, 2, and 3 cycles in 11 (10 %), 17 (16 %), and 77 (73 %) patients, respectively. We concurrently performed systemic therapy in 13 (12 %) patients. Tumor response was observed in 92 (88 %) patients and at least one symptom relief in 51 (71 %) of 72 patients. We observed an overall response (tumor response or symptom relief) in 98 (93 %) patients with all patients who completed 3 cycles achieving it. The median overall survival (OS) was 6.8 months. Our multivariate analysis revealed that non-squamous cell carcinoma (p < 0.001), T category of 0-2 (p = 0.021), and 3 QUAD shot cycles (p < 0.001) were independent prognostic factors of better OS. We observed Grade 3 toxicity in 2 (2 %) patients while no ≥ Grade 4 acute or ≥ Grade 3 late toxicity.

CONCLUSIONS

The QUAD shot regimen using VMAT exerts appropriate palliative effect in patients with incurable HNC. Treatment with higher QUAD shot cycle number would be recommended for better treatment outcomes.

Palliative Quad Shot Radiation Therapy with or without Concurrent Immune Checkpoint Inhibition for Head and Neck Cancer

OBJECTIVES

Patients with recurrent and metastatic head and neck cancer (HNC) have limited treatment options. 'QuadShot' (QS), a hypofractionated palliative radiotherapy regimen, can provide symptomatic relief and local control and may potentiate the effects of immune checkpoint inhibitors (ICIs). We compared outcomes of QS ± concurrent ICIs in the palliative treatment of HNC.

MATERIALS AND METHODS

We identified patients who received ≥three cycles of QS from 2017 to 2022 and excluded patients without post-treatment clinical evaluation or imaging. Outcomes for patients who received QS alone were compared to those treated with ICI concurrent with QS, defined as receipt of ICI within 4 weeks of QS.

RESULTS

Seventy patients were included, of whom 57% received concurrent ICI. Median age was 65.5 years (interquartile range [IQR]: 57.9-77.8), and 50% patients had received prior radiation to a median dose of 66 Gy (IQR: 60-70). Median follow-up was 8.8 months. Local control was significantly higher with concurrent ICIs (12-month: 85% vs. 63%, p = 0.038). Distant control (12-month: 56% vs. 63%, p = 0.629) and median overall survival (9.0 vs. 10.0 months, p = 0.850) were similar between the two groups. On multivariable analysis, concurrent ICI was a significant predictor of local control (HR for local failure: 0.238; 95% CI: 0.073-0.778; p = 0.018). Overall, 23% patients experienced grade 3 toxicities, which was similar between the two groups.

CONCLUSIONS

The combination of QS with concurrent ICIs was well tolerated and significantly improved local control compared to QS alone. The median OS of 9.4 months compares favorably to historical controls for patients with HNC treated with QS. This approach represents a promising treatment option for patients with HNC unsuited for curative-intent treatment and warrants prospective evaluation.

Description and efficacy of a response-based "QUAD" cyclical hypofractionated palliative-intent radiation protocol in dogs with macroscopic solid tumours: 108 cases

Palliative-intent radiation therapy can alleviate pain and clinical signs in dogs with cancer, but optimal fractionation scheme is unknown. The objective of this retrospective case series is to evaluate clinical benefit, objective response, adverse effects, and outcomes in 108 dogs with macroscopic solid tumours treated with a cyclical "QUAD" hypofractionated palliative-intent radiation therapy protocol. Median QUAD dose was 14 Gy (14-16 Gy). Median total dose was 28 Gy (14-48 Gy). Clinical benefit rate was 93%, with median onset of subjective palliation 21 days after the first QUAD, lasting a median of 134 days. Tumour volumetric objective response was assessed with CT prior to the third QUAD in 36 dogs, with stable disease in 24 dogs (67%) and partial response in 9 dogs (25%). Sinonasal and oral were the most common tumour locations in 32 and 30 dogs, respectively. Median progression-free survival was 153 days (95% CI 114-200). Median overall survival was 212 days (95% CI 152-259). Number of QUAD cycles completed, clinical benefit achieved, anti-inflammatory received, total radiation dose, time to maximum clinical benefit, and response duration were positively associated with progression-free and overall survival. Acute toxicities were observed in 15 dogs (14%) with 3 high-grade (grade 3) toxicities (3%). Low-grade (grade 1 and 2) late skin and ocular toxicities were observed in 31 dogs (29%), predominantly leukotrichia, alopecia, keratoconjunctivitis sicca, and cataracts. This report demonstrates that QUAD radiation is an alternative protocol to be considered for palliation of dogs with inoperable or advanced stage solid tumours.

Quad-shot-immunotherapy: quad-shot radiotherapy with pembrolizumab for advanced/recurrent head and neck cancer

Effective treatments for advanced/recurrent head and neck squamous-cell carcinoma are limited. For cases not curable by conventional local therapies, the immune checkpoint inhibitor pembrolizumab shows modest response rates. Quad-shot, a hypofractionated palliative radiotherapy regimen (14.8 Gy in four twice-daily fractions), can provide symptomatic relief, contributes to local control and may potentiate the effects of immune checkpoint inhibitors. In this study, 15 patients with advanced/recurrent head and neck squamous-cell carcinoma will be treated with pembrolizumab combined with up to three administrations of quad-shot before cycles four, eight and 13. Outcomes include disease response, survival and treatment toxicity. Correlative multiomics analysis of blood and saliva will identify molecular biomarkers of response to immune checkpoint inhibitor and the immune-related impact of quad-shot. Clinical trial registration: This study (WFBCCC 60320) is registered on NCT04454489 (ClinicalTrials.gov).

Effect of radiotherapy interruption on nasopharyngeal cancer

Nasopharyngeal carcinoma (NPC) is a malignant tumor originating from the epithelial cells of the nasopharynx with a unique geographic distribution, and is particularly prevalent in East and Southeast Asia. Due to its anatomical location, the surgery is difficult to access and the high sensitivity of nasopharyngeal cancer to radiotherapy (RT) makes it the main treatment modality. Radical radiotherapy is the first-line treatment for early-stage nasopharyngeal carcinoma and the cornerstone of multidisciplinary treatment for patients with locally advanced nasopharyngeal carcinoma. Nevertheless, radiotherapy interruption is inevitable as a consequence of unavoidable factors such as public holidays, machine malfunction, patient compliance, and adverse response to treatment, which in turn leads to a reduction in bioactivity and causes sublethal loss of tumor cells to repair. Unirradiated tumor cells are more likely to repopulate at or near their original fastest growth rate during this interval. If no measures are taken after the radiotherapy interruption, such as increasing the dose of radiotherapy and systemic therapy, the tumor is most likely to go uncontrolled and then progress. This review describes the effects of radiotherapy interruption on nasopharyngeal carcinoma, the mechanism of the effect, and explores the measures that can be taken in response to such interruption.

Use of split-course hypofractionated radiotherapy in palliative treatment of head and neck cancers: how does our regimen compare with others?

Introduction:

Head and neck cancers (HNCs) are some of the commonest cases requiring palliative radiotherapy (PRT) in an Indian radiotherapy practice. A variety of PRT protocols have been explored with varying success.

Methods:

The study objective was to evaluate the efficacy and tolerability of a short-course hypofractionated PRT schedule in HNC patients in terms of symptom relief, tumour response, acute side effects and survival and to compare results with other PRT regimens. All patients received 30 Gy in 10 fractions over 2 weeks followed by another 20 Gy in 5 fractions after a 4 weeks gap.

Results:

Seventy-five percent of patients completed both phases of treatment. Symptom relief was seen in 71% (pain) to 76% (dysphagia) of patients. Tumour response was recorded in 73% of patients. At 12 months, the mean overall survival was 10·29 months for patients who responded to PRT compared to 7·87 months for those who did not. Results were comparable to other regimens reported in the literature, but no radiobiological advantage of a higher dose was discernible.

Conclusions:

Short-course hypofractionated PRT is effective in reducing tumour burden and relieving symptoms in HNC patients and possibly in lengthening survival. Selection of any schedule should be decided by treating oncologists based on clinical, logistic and socio-economic factors.

Comparison of two schedules of hypo-fractionated radiotherapy in locally advanced head-and-neck cancers

Aim

In India, more than 70% patients present as locally advanced head-and-neck cancers (LAHNC), with poor performance status and are suitable candidates for palliative radiotherapy (RT) aimed at symptom relief. This prospective study aims to compare two different short course hypo-fractionated RT regimens in patients of LAHNC at a regional cancer centre of north-west India.

Materials and Methods

A total of 70 patients of LAHNC were randomized to receive palliative RT in two groups of 35 each. Group A received 30 Gy/10# over 2 weeks and Group B received 20 Gy/5# over 1 week. Baseline symptoms of pain, dysphagia, insomnia, dysphonia, bleeding, fungation, and dyspnea were assessed before the start of study. The first assessment for toxicities, subjective and objective response was done at the conclusion of RT and then after 4-6 weeks.

Results

Out of total 70 patients, 71% were males and 29% were females with a median age of 54 years. The most common sites were oropharynx (39%) followed by larynx (24%), oral cavity (20%), and hypopharynx (17%). Nearly 60% of the patients in both groups presented in stage IV and 40% in stage III. At conclusion of RT and at 4-6 weeks follow-up, both groups showed similar results in terms of symptom palliation, objective response, and acute toxicities. Group B showed higher incidence of Grade III and above mucositis (P = 0.027). Median overall survival was found to be 5.9 months (range 1-15 months) in group A and 6.1 months (range 1-18 months) in Group B.

Conclusion

Hypo-fractionated RT promises to effectively relieve symptoms in LAHNC and reduces the need of analgesics and hospital visits. Furthermore, a shorter overall treatment time is beneficial at high volume centers and is also welcomed by patients with shorter life expectancy.

Neoadjuvant QUAD shot for downstaging or temporizing locally advanced oral cavity cancer prior to definitive surgery

OBJECTIVES

The mainstay of oral cavity cancer treatment is surgery, often with adjuvant therapies. However, patients often present with locally advanced disease and downstaging would render surgery more feasible. We evaluated hypofractionated radiation therapy (QUAD Shot) prior to definitive surgery for head and neck cancers, with a goal of downstaging.

MATERIALS AND METHODS

Eighteen patients with primary head and neck malignancy, predominantly locally advanced oral cavity cancers, received QUAD Shot radiation therapy from June 2016 to July 2021. External beam radiation therapy was delivered to the primary lesion in four fractions over two days, two fractions/day at least six hours apart with total dose ranging from 1400 cGy to 1500 cGy. Twelve patients proceeded to definitive surgery.

RESULTS

Of the twelve patients receiving surgery, one had complete response to radiation therapy with no pathological disease seen at surgery. Four patients had a partial response, defined as downstaging on final pathology. Five patients showed no response, and two had progressive disease defined as upstaging on final pathology. Seven patients had radiographic primary tumor shrinkage ≥ 0.5 cm following Quad Shot. The Quad Shot was tolerated well with no reported adverse effects.

CONCLUSION

Discrepancies between clinical- and pathological-staging are common and expected. However, ∼40 % of our patients experienced downstaging following QUAD Shot. Thus, neoadjuvant radiation therapy may be viable for temporizing tumor growth while awaiting surgery, or for downstaging and thus facilitating more technically feasible and less morbid surgery for locally advanced head and neck cancers.

Palliative tumor surgery for incurable head and neck cancer: indications and outcomes: A retrospective case review

Purpose: Despite the promising palliative effects of radiation treatment, few reports have studied the role of palliative tumor surgery (PTS) in patients with unresectable head and neck cancer (HNC). Thus, we aimed to present the outcomes of PTS in HNC, and suggest a possible surgical indication for PTS.Methods: We retrospectively reviewed the medical records of 18 patients who underwent PTS for HNC between 2002 and 2017. PTS was defined as surgical debulking of tumor or surgery of loco-regionaltumors in patients with distant metastasis. As functional outcomes, we evaluated changes in pain, diet, respiration, and wound care before and after PTS.Results: Squamous cell carcinoma was the common cancer type (72.2%), followed by salivary gland cancers and others. The median overall survival time was 17 months (95% confidence interval, 7.3 to 26.7). PTS significantly reduced the pain score (P= 0.013), and improved cancer-related wounds (P=0.003 in wound infection). Oral swallowing and respiration status did not change after PTS. The recurrent tumor at the operation bed was clinically detected at post-operative 1 to 2 months with intact skin (without wound problems). Of note, further chemotherapy or other additional cancer treatments was possible in 66.7% of patients with PTS (P=0.002).Conclusion: PTS could provide a meaningful benefit to selected patients with incurable HNC, in terms of pain control and cancer wound management. Thus, PTS is a considerable option for selected HNC patients, based on the accurate evaluation of tumor extent along with multi-disciplinary consultation as well as patient counseling.

What Did the Pandemic Teach Us About Palliative Radiation in Head and Neck Cancer?

Objective: To assess the feasibility and efficacy of palliative radiotherapy dose regimens for patients with locally advanced head and neck cancer. Methods: Fifty patients of previously untreated, inoperable, stage IVA and IVB squamous cell carcinoma of the head and neck, deemed unfit for radical treatment, were included in the study from May 2020 to June 2020. Two palliative radiotherapy regimens were used. First was a single fraction radiation with 8 Gy for patients with limited life expectancy and poor performance status, which was repeated after 4 weeks in case of good symptom relief. The second regimen was used for patients with good performance status and consisted of fractionated radiation with 30 Gy in 10 fractions over 2 weeks, which was followed by supplementary radiation with 25 Gy in 10 fractions over 2 weeks in patients with good symptomatic response at 2 weeks. Symptoms were assessed at baseline and at the end of 4 weeks after treatment completion using the numerical rating score. Patients were followed up for a median of 4.5 months and assessed for symptom control and overall survival. Results: Forty-eight patients completed treatment and were included for analysis. Of the 24 patients who received single fraction radiation, 13 (54.2%) were given the second dose. Improvement in pain and dysphagia were reported in 57.9% and 60% patients, respectively. A total of 55.5% noted decrease in size of the neck node. Twenty-four patients received fractionated radiation and 15 (62.5%) were given the second course after 2 weeks. Relief in pain and dysphagia was reported in 68.2% and 63.6% patients, respectively. There were no grade 3/4 toxicities. Symptom control lasted for at least 3 months in 30% of the patients who received single fraction radiation and 54.2% of the patients who received fractionated radiation. The estimated 6-month overall survival of the entire cohort was 51.4%. Conclusion: Judicious use of palliative radiation in advanced incurable head and neck cancers provides effective and durable symptom relief and should be used after careful consideration of patient prognosis, logistics of treatment, and goals of care.

Patient-Reported Outcomes Assessing the Impact of Palliative Radiotherapy on Quality of Life and Symptom Burden in Head and Neck Cancer Patients: A Systematic Review

Incurable head and neck cancer has a poor prognosis and impairs a patient's health-related quality of life. Palliative radiotherapy may improve or stabilize health-related quality of life and symptoms, best measured by patient-reported outcomes. There is no systematic analysis if palliative radiotherapy for head and neck cancer improves or stabilizes health-related quality of life or symptoms as validly measured by patient-reported outcomes. Therefore, the primary objective of this systematic review (PROSPERO-ID: CRD42020166434) was to assess the effect of palliative radiotherapy for head and neck cancer on patient-reported outcomes. The secondary objective was to assess the rate and quality of use of patient-reported outcomes in relevant studies claiming a "palliative effect" of radiotherapy. The databases MEDLINE/PubMed, EMBASE, Cochrane CENTRAL, "ClinicalTrials.gov" were searched. Concerning the primary objective, four studies were eligible to assess the effectiveness of palliative radiotherapy as measured by patient-reported outcomes. A narrative synthesis suggests a favorable impact of palliative radiotherapy on health-related quality of life and symptom burden. The risk of bias, however, is considerable and the overall quality of evidence low. Concerning the secondary objective, over 90% of studies claiming a "palliative effect" of palliative radiotherapy did either not use patient-reported outcomes or did so by limited quality. In conclusion, implementation of patient-reported outcomes in studies assessing palliative radiotherapy for head and neck cancer should be fostered. Palliative radiotherapy remains an option for head and neck cancer patients, although more studies focusing on patient-reported outcomes are needed.

SYSTEMATIC REVIEW REGISTRATION

https://www.crd.york.ac.uk/prospero/, identifier CRD42020166434.

Proton radiotherapy for recurrent or metastatic sarcoma with palliative quad shot

Patients with previously treated, recurrent or metastatic sarcomas who have progressed on multiples lines of systemic therapy may have limited options for local control. We evaluated outcomes of palliative proton therapy with the quad shot regimen to unresectable disease for patients with recurrent and/or metastatic sarcoma. From 2014 to 2018, 28 patients with recurrent or metastatic sarcomas were treated to 40 total sites with palliative proton RT with quad shot (14.8 Gy/4 twice daily). Outcomes included toxicity, ability to receive further systemic therapy, and subjective palliative response. Univariate analysis was performed for local progression‐free survival (LPFS) and overall survival (OS). Of the 40 total sites, 25 (62.5%) received ≥3 cycles with median follow up of 12 months (IQR 4–19). The most common histologies were GIST (9; 22.5%) and leiomyosarcoma (7; 17.5%). A total of 27 (67.5%) sites were located in the abdomen or pelvis. Seventeen (42.5%) treatments involved concurrent systemic therapy and 13 (32.5%) patients received further systemic therapy following proton therapy. Overall subjective palliative response was 70%. Median LPFS was 11 months and 6‐month LPFS was 66.1%. On univariate analysis, receipt of four cycles of quad shot (HR 0.06, p = 0.02) and receipt of systemic therapy after completion of radiation therapy (HR 0.17, p = 0.02) were associated with improved LPFS. Three grade 3 acute toxicities were observed. The proton quad shot regimen serves as a feasible alternative for patients with previously treated, recurrent or metastatic sarcomas where overall treatment options may be limited.

Importance of dose in palliative treatment for incurable head and neck cancer with radiotherapy

PURPOSE

To identify predictors of palliation for head and neck cancer treated with the "Hypo Trial" hypofractionated radiation therapy regimen in a clinical setting.

DESIGN/METHOD

We retrospectively assessed 106 consecutive patients with incurable cancer, treated between January 2008 and December 2018. Regimen used was 30-36Gy in 5-6 biweekly fractions of 6Gy.

RESULTS

The prescription dose was 30Gy in 57 (53.8%) patients and 36Gy in 49 (46.2%) patients. 89.6% patients completed the prescribed treatment. With a median follow-up of 6.92 months, 79.2% of the patients experienced clinical palliation. Palliation was correlated with the radiation therapy dose (P = 0.05). Median overall and progression-free survival (OS, PFS) were 7 and 4.63 months, respectively. Achieving palliation was associated to OS (P = 0.01).

CONCLUSIONS

This short palliative hypofractionated scheme resulted in a high rate of palliation, with excellent compliance and acceptable toxicity. Our results show that radiation dose is a predictive factor for palliation.

Advanced head and neck cancer in older adults: Results of a short course accelerated radiotherapy trial

OBJECTIVES

To assess the feasibility and safety of a repeated SHort course Accelerated RadiatiON therapy (SHARON) regimen in the palliative setting of Head and Neck (H&N) cancer in older adults.

MATERIAL AND METHODS

Patients with histological confirmed H&N cancers, age ≥ 80 years, expected survival >3 months, and Eastern Cooperative Oncology Group (ECOG) performance status of ≤3 were enrolled. Patients were treated in cohorts of six patients: a total dose of 20 Gy was delivered in 2 consecutive days with a twice-daily fractionation (5 Gy per fraction) and at least 8-h interval. If no Grade 3 toxicity was registered, a second enrollment started with another cohort of six patients to whom were administered two cycles (total dose of 40 Gy). The primary endpoint was to evaluate the feasibility of the two cycles of treatment. Secondary endpoints were evaluation of symptoms control rate, symptoms-free survival (SFS), and Quality of Life (QoL) scores.

RESULTS

Seventeen consecutive patients (median age: 85 years) were treated. Nine patients were treated with one cycle and 8 patients with two cycles. No G3 toxicity was reported in either cohort. With a median follow-up time of 4 months, 3-month SFS in the first and second cohorts was 83.3%, and 87.5%, respectively. The overall palliative response rate was 88%. Among 13 patients reporting pain, 8 (61.5%) showed an improvement or resolution of their pain.

CONCLUSION

Repeated short course accelerated radiotherapy in a palliative setting of H&N cancers is safe and well-tolerated in older adults.

Radiation therapy on primary tumour of synchronous metastatic head and neck squamous cell carcinomas

PURPOSE

Patients with synchronous metastatic head and neck squamous cell carcinomas often present associated locoregional symptoms and a risk of life-threatening primary tumour progression. Few data have been published about the use of radiation therapy in the management of newly diagnosed metastatic disease associated with advanced locoregional disease. In this article, we aim to determine the role of radiation therapy of the primary tumour in the overall therapeutic strategy for these diseases. We further address radiation therapy modalities (technique, volumes, and fractionation) in such a context.

MATERIAL AND METHODS

We conducted a literature survey on locoregional radiotherapy for newly diagnosed metastatic head and neck squamous cell carcinomas.

RESULTS

Several retrospective studies have reported that locoregional radiotherapy is associated with improved overall survival of patients with synchronous metastatic head and neck squamous cell carcinomas. However, data about modalities such as timing of radiotherapy in the overall strategy, dose, fractionation and delineation volumes are scarce. Two schematic situations can be distinguished with respect to prognosis and treatment adaptations: polymetastatic/bulky or oligometastatic disease. In polymetastic/bulky disease associated with poor prognosis, standard-of-care is systemic therapy, but locoregional radiotherapy can be discussed either upfront, mainly for symptomatic palliation, or as consolidation after downsizing obtained by systemic therapy. As for oligometastatic disease, with the rise in use of efficacious and well-tolerated local ablative treatments of metastases, aggressive curative-intent locoregional radiotherapy can be considered with or without systemic therapy.

CONCLUSION

Because locoregional disease is a major cause of disease failure in patients with synchronous metastatic head and neck squamous cell carcinomas, aggressive locoregional radiation therapy to the primary tumour may be discussed in the initial management of the disease where systemic therapy alone may not induce sufficient primary tumour reduction. With recent technological advances in radiotherapy, the delivery of radiotherapy is safe and feasible even in metastatic setting. Clinical trials assessing radiotherapy use for metastatic head and neck squamous cell carcinomas are warranted.

Impact of Lymph Node Yield on Survival in Surgically Treated Oropharyngeal Squamous Cell Carcinoma

Objectives

(1) To estimate the association between neck dissection lymph node yield (LNY) and survival among patients with surgically treated human papilloma virus (HPV)–associated oropharyngeal squamous cell carcinoma (OPSCC). (2) To identify a clinically relevant quality metric for surgical treatment of HPV-related OPSCC.

Study Design

Retrospective cohort study.

Setting

National Cancer Database.

Subjects and Methods

From the National Cancer Database, 4130 patients were identified with HPV-associated OPSCC treated with primary surgery from 2010 to 2016. Based on prior literature, an adequate neck dissection LNY was defined as ≥18 lymph nodes. To determine whether LNY is associated with survival, univariable and multivariable Cox proportional hazards regression was performed. Analysis was stratified by adjuvant therapy regimen.

Results

A total of 2113 patients (51.2%) underwent surgery with or without adjuvant radiation (S ± RT), and 2017 patients (48.8%) underwent surgery with adjuvant chemoradiation. LNY ≥18 was associated with a 5-year survival benefit of 7.15% (91.7% for LNY ≥18, 84.5% for LNY <18, P = .004) for the S ± RT cohort on unadjusted survival analysis. For the S ± RT group, LNY ≥18 was associated with decreased hazard of death (hazard ratio, 0.45; 95% CI, 0.29-0.70; P < .001) after adjustment for patient characteristics, TNM staging, surgical margins, extranodal extension, and treating facility characteristics. For surgery with adjuvant chemoradiation, the adjusted hazard ratio estimate for LNY ≥18 was 0.64 (95% CI, 0.41-1.00), but the result was not statistically significant ( P = .052).

Conclusion

An adequate LNY from a neck dissection may affect survival when HPV-related OPSCC is treated with up-front surgery.

The 3 Bs of cancer care amid the COVID-19 pandemic crisis: "Be safe, be smart, be kind"-A multidisciplinary approach increasing the use of radiation and embracing telemedicine for head and neck cancer

Because of the national emergency triggered by the coronavirus disease 2019 (COVID-19) pandemic, government-mandated public health directives have drastically changed not only social norms but also the practice of oncologic medicine. Timely head and neck cancer (HNC) treatment must be prioritized, even during emergencies. Because severe acute respiratory syndrome coronavirus 2 predominantly resides in the sinonasal/oral/oropharyngeal tracts, nonessential mucosal procedures are restricted, and HNCs are being triaged toward nonsurgical treatments when cures are comparable. Consequently, radiation utilization will likely increase during this pandemic. Even in radiation oncology, standard in-person and endoscopic evaluations are being restrained to limit exposure risks and preserve personal protective equipment for other frontline workers. The authors have implemented telemedicine and multidisciplinary conferences to continue to offer standard-of-care HNC treatments during this uniquely challenging time. Because of the lack of feasibility data on telemedicine for HNC, they report their early experience at a high-volume cancer center at the domestic epicenter of the COVID-19 crisis.

Feasibility and effectiveness of palliative intensity-modulated radiotherapy for carotid sinus syndrome secondary to recurrent head and neck cancer

A 74-year-old man presented with recurrent syncope 3 months after definitive surgery for hypopharyngeal cancer. The patient experienced dizziness and severe hypotension on the movement of the neck and head. CT revealed disease recurrence with masses encasing the left internal carotid artery. The patient was diagnosed with vasodepressor type of tumour-induced carotid sinus syndrome (tiCSS) and was referred for palliative intensity-modulated radiotherapy (IMRT). Ten days after the commencement of IMRT (25 Gy in five fractions), the symptoms of tiCSS improved, and there was no re-exacerbation of the symptoms till the patient died 56 days after the commencement of RT. Palliative IMRT was feasible and effective for recurrent malignant tiCSS. Given the fact that palliative IMRT is minimally invasive, this option could be widely adapted for patients with such poor general condition and prognosis.

QUAD shot: an effective cyclical hypofractionated palliative radiotherapy for salivary gland carcinoma

Surgery with or without post-operative radiotherapy is the mainstay treatment for salivary gland carcinoma (SGC); however, palliative radiotherapy or supportive observation is considered for elderly patients. An 87-year-old female who was diagnosed with SGC in the left parotid gland, with a clinical stage T4aN2bM0 Stage IVA, underwent the Radiation Therapy Oncology Group 8502 “QUAD shot” regimen (14.8 Gy/4 fractions, twice-daily treatment with a 6 h interval, on 2 consecutive days), which were repeated every 4 weeks 3 times using volumetric modulated arc therapy. During and after the treatment, she experienced no acute toxicity but had Grade 1 xerostomia. At 4 months after completion of the treatment, [¹⁸F]-fluoro-2-deoxy-D-glucose positron emission tomography/CT revealed a complete metabolic response to the treatment. She is still alive without any evidence of recurrence 9 months after completion of the treatment. The Radiation Therapy Oncology Group 8502 “QUAD shot” regimen using VMAT may be an effective palliative treatment for SGC with minimal toxicity.

Hypofractionated palliative volumetric modulated arc radiotherapy with the Radiation Oncology Study Group 8502 "QUAD shot" regimen for incurable head and neck cancer

BACKGROUND

To review a single institutional experience of the Radiation Therapy Oncology Group (RTOG) 8502 "QUAD shot" regimen using volumetric modulated arc radiotherapy (VMAT) for incurable head and neck cancer (HNC).

METHODS

Thirty-four consecutive patients with HNC were treated with at least one cycle of the RTOG 8502 regimen. Treatment plans included the use of VMAT with 6 MV photons generated by a linear accelerator. Two daily fractions of 3.7 Gy were delivered with an interval of at least 6 h for 2 consecutive days, totaling 14.8 Gy over 4 fractions. This was repeated every 3-4 weeks for a total of three cycles. No concurrent systemic therapy was performed.

RESULTS

The number of completed cycles was 1 in 6 (18%) patients, 2 in 5 (15%), and 3 in 23 (68%). Tumor response was achieved in 29 (85%) patients and symptom relief in 20 (77%) of 26 patients. Overall response (tumor response or symptom relief) was achieved in 32 (94%) patients. All patients who received 2 or more treatment cycles achieved overall response. Median overall survival (OS) was 5.7 months. Multivariate analysis revealed that completion of all three treatment cycles was significantly associated with better OS (P = 0.002). Grade 2 toxicity was observed in four (12%) patients, but no acute Grade ≥ 3 or late toxicity was observed.

CONCLUSIONS

The RTOG 8502 "QUAD shot" regimen using VMAT is effective for incurable HNC with highly reduced toxicity. Treatment with multiple cycles is recommended for better treatment response and/or survival.

Last-line local treatment with the Quad Shot regimen for previously irradiated head and neck cancers

OBJECTIVES

Patients with prior irradiated head and neck cancer (HNC) who are ineligible for definitive retreatment have limited local palliative options. We report the largest series of the use of the Quad Shot (QS) regimen as a last-line local palliative therapy.

MATERIALS AND METHODS

We identified 166 patients with prior HN radiation therapy (RT) treated with QS regimen (3.7 Gy twice daily over 2 consecutive days at 4 weeks intervals per cycle, up to 4 cycles). Palliative response defined by symptom(s) relief or radiographic tumor reduction, locoregional progression free survival (LPFS), overall survival (OS) and radiation-related toxicity were assessed.

RESULTS

Median age was 66 years. Median follow-up for all patients was 6.0 months and 9.7 months for living patients. Overall palliative response rate was 66% and symptoms improved in 60% of all patients. Predictors of palliative response were > 2 year interval from prior RT and 3-4 QS cycles. Median LPFS was 5.1 months with 1-year LPFS 17.7%, and median OS was 6.4 months with 1-year OS 25.3%. On multivariate analysis, proton RT, KPS > 70, presence of palliative response and 3-4 QS cycles were associated with improved LPFS and improved OS. The overall Grade 3 toxicity rate was 10.8% (n = 18). No Grade 4-5 toxicities were observed.

CONCLUSION

Palliative QS is an effective last-line local therapy with minimal toxicity in patients with previously irradiated HNC. The administration of 3-4 QS cycles predicts palliative response, improved PFS, and improved OS. KPS > 70 and proton therapy are associated with survival improvements.

Treatment Strategy for Distant Synchronous Metastatic Head and Neck Squamous Cell Carcinoma

PURPOSE OF REVIEW

Management of metastatic head and neck squamous cell cancers (HNSCC) can be challenging. This review gives an insight of current treatment options for patients with synchronous metastatic HNSCC and suggests a therapeutic algorithm.

RECENT FINDINGS

With the rise of novel therapeutic techniques and medications, many treatment options for both locoregional and distant metastatic disease have become available. The evolving paradigm of metastatic disease now integrates the concept of oligometastatic disease. On top of systemic treatments, patients with low metastatic burden can benefit from curative approaches such as local therapies (surgery, radiotherapy) directed to either primary tumour and distant metastasis. However, data integrating these considerations in the management of metastatic HNSCC is still lacking. Based on this algorithm, we can provide a tailored treatment to each patient with synchronous metastatic HNSCC, according to their age, general condition and metastatic burden.

Effect of Hypofractionated, Palliative Radiotherapy on Quality of Life in Late-Stage Oral Cavity Cancer: A Prospective Clinical Trial

Context:

The study was designed to evaluate the effect of a hypofractionated, palliative conformal radiotherapy regimen of 5250 cGy in 15 fractions in inoperable/incurable oral cavity carcinoma.

Aims:

The primary objective was to assess the change in the quality of life (QOL) with respect to pain and mouth opening pre- and post-radiotherapy using standardized questionnaires. The secondary objective was to assess overall QOL using the same questionnaires and also to assess response rates, survival, compliance, early and late toxicity.

Settings and Design:

This was a single-arm, prospective trial. Patients with incurable oral cavity cancer referred for palliative intent radiotherapy to the Department of Radiotherapy, RCC, JIPMER were recruited into the study.

Subjects and Methods:

Forty-eight patients were recruited and twenty-five patients were given conformal radiotherapy to a dose of 52.5 Gy in 15 fractions. QOL was assessed using the European Organization of Research and Treatment of Cancer (EORTC) questionnaires before and 2 months after the completion of radiotherapy. The response assessment was made using the Response Evaluation Criteria in Solid Tumors (RECIST) criteria 2 months after radiotherapy. The early and late toxicities were assessed at 2 months and 6 months after radiotherapy completion, respectively.

Statistical Analysis Used:

Sample size was calculated to be 53. The Wilcoxon signed-rank test was used to compare QOL scores pre- and post-radiotherapy. Median survival was assessed using the Kaplan–Meier method.

Results:

There was a significant improvement in the pain, mouth opening, speech, social contact, social eating, felt ill items of the EORTC QLQ-H and N35 questionnaire and role functioning, emotional functioning, social functioning, fatigue, pain, insomnia, appetite loss, financial difficulties, and Global QOL subscales of the QLQ-C30 questionnaire. 72% of the patients had grade 3 acute radiation oral mucositis and 36% had grade 3 acute radiation dermatitis. There were no significant treatment breaks due to toxicity. There were no grade 3 late toxicities observed. Overall median survival was 5.1 months. The overall response rate was 47%. The median time to treatment completion was 24 days.

Conclusions:

The improvement in QOL parameters suggests that the regimen of 52.5 Gy in 15 fractions is suitable for palliative intent radiotherapy in late-stage oral cavity cancer for effective palliation for short periods.

Clinical and radiobiological consideration of cyclical hypofractionated radiation therapy also known as QUAD Shot for neglected skin cancer disfiguring the face of a non-compliant patient who was refusing surgery and protracted radiation therapy: case report

Although surgery is the mainstay of local treatment for skin cancer, definitive radiation therapy (RT) has been also applied for patients who are unable to tolerate surgery. Definitive RT regimens usually consist of daily treatment for 4–7 weeks. Such protracted daily RT regimens, however, would not be feasible for non-compliant patients or patients who are unable to make multiple daily trips for weeks. Without treatment, however, skin cancers can continuously progress and cause distressing symptoms. A cyclical hypofractionated RT (QUAD Shot: 14 Gy in 4 fractions, twice-daily treatments with 6 hours interval on 2 consecutive days) can be a practical RT regimen for those patients. In this report, we present the successful treatment course of repeated QUAD Shots in a 79-year-old patient with neglected skin cancer that was disfiguring his face yet declined definitive surgery and protracted RT. We also evaluated and compared biologically equivalent doses between QUAD Shots and conventionally fractionated protracted RT regimens.

Palliative Radiation Therapy for Head and Neck Cancers

Patients with advanced head and neck cancers who are not eligible for curative treatment represent a challenging cohort of patients to manage given the complexity and severity of their presenting symptoms. Palliative radiation therapy, along with other systemic and surgical measures, has the potential to significantly improve the quality of life of such patients. There is little high-level evidence and a lack of consensus to direct the selection of an optimal palliative radiation regimen. An ideal palliative radiation regimen should alleviate symptoms secondary to the cancer with minimal treatment toxicity and side effects while improving a patient's quality of life. This review presents the treatment approaches, outcomes, and toxicities associated with different radiation regimens and proposes a multidisciplinary framework for the selection of an individualized treatment regimen for patients that centers around patient prognosis, goals of care, logistics of treatment, and the availability of other surgical and systemic therapies.

The Use of "QUAD Shot" in Anal Canal Squamous Cell Carcinoma: A Case Study With Review of the Literature

CONTEXT

Patients with locoregional anal carcinoma who do not qualify for standard definitive chemoradiation are candidates for a short course of palliative hypofractionated radiotherapy such as QUAD Shot.

METHODS

A 57-year-old man with massive locoregional squamous cell carcinoma of the anal canal was treated with QUAD Shot (14.8 Gy in four fractions over two consecutive days) repeated every four weeks for a total of two courses.

RESULTS

He reported symptomatic relief following each course of radiation. In regard to his first QUAD Shot, his pain was 10/10 in severity at the time of admission and 4/10 at the time of discharge. In regard to his second QUAD Shot, his pain was 8/10 at the time of admission and 0/10 at the time of discharge. He did not experience any treatment-related toxicity. He passed away 15 weeks after the first course.

CONCLUSION

QUAD Shot is both efficacious and safe for palliation in patients with anal carcinoma.

Conventional Fractionation versus Quad Shot in Advanced Head-and-Neck Cancers: A Randomized Controlled Trial

Context:

A significant number of patients with head-and-neck cancers have an incurable disease with limited life expectancy. The objective of the present study was to compare two different short courses of hypofractionated palliative radiotherapy regimens to evaluate symptoms, disease response, and acute toxicity.

Materials and Methods:

Previously untreated 50 patients of Stage IV B and IV C head and neck cancers were randomized to receive conventional hypofractionated palliative radiotherapy 30 Gy/10 fractions/2 weeks (control group) or Quad Shot regimen (study group) 14 Gy in 4 fractions given twice a day at least 6 h apart for 2 consecutive days. This regimen was repeated at 4 weekly intervals for a further two courses if there was no tumor progression.

Results:

Symptom relief was similar among the two schedules for pain (60.86 vs. 57.17), dysphagia (60.86 vs. 52.17%), and hoarseness (43.85 vs. 38.09%). Overall response (that is partial response and stable disease) was seen in majority (>70%) of the patients in both the groups. Treatment was very well tolerated with no patient experiencing more than Grade 3 toxicity in the control group and Grade 2 toxicity in the study group.

Conclusions:

Quad Shot regimen is an effective hypofractionated palliative radiotherapy schedule with minimal toxicity, good symptom relief, and response rate as compared to conventionally used regimen (30 Gy/10 fractions/2 weeks).

Proton Radiotherapy for Recurrent or Metastatic Head and Neck Cancers with Palliative Quad Shot

Purpose

Some patients with previously treated, unresectable, recurrent or metastatic head and neck malignancies are not amenable to curative-intent treatment. Here, we investigated the quad-shot (RTOG 8502) regimen of hypofractionated proton radiotherapy (RT) in that patient population.

Materials and Methods

From 2013 to 2015, 26 patients with recurrent or metastatic cancers were treated with palliative proton RT to the head and neck with quad shot (3.7 Gy twice daily for 2 days). Patient characteristics and survival data were reviewed.

Results

Seventeen (65%) patients received ≥ 3 quad-shot cycles and 23 (88%) had prior head and neck RT. Overall palliative response was 73% (n = 19). The most common presenting symptom was pain (50%; n = 13), which improved in 85% (n = 22) of all patients. The overall grade-1 acute-toxicity rate was 58% (n = 15), and no acute grade 3 to 5 toxicities were observed.

Conclusions

The proton quad-shot regimen demonstrates favorable palliative response and toxicity profile, even in patients that received prior RT.

Radiation-induced damage to lacrimal glands: an ultrastructural study in Sprague Dawley rats

Injury to lacrimal glands represents a major health problem after radiation therapy of the head and neck malignancies. Accordingly, this study aimed to investigate significant ultrastructural changes of lacrimal glands and some of their underlying mechanisms following the exposure to different fractionated doses of irradiation. In this study, 28 Sprague Dawley (SD) rats were assigned to four groups (seven rats each): Group I acted as control and received no irradiation. Groups II-IV received fractionated irradiation of 5 Gy (100 cGy/fraction daily for 5 days), 9 Gy (300 cGy/fraction daily for 3 days), and 20 Gy (one fraction), respectively. One month after the experiment, examination of lacrimal glands with transmission electron microscopy (TEM) demonstrated dose-dependent ultrastructural changes in the lacrimal acinar and intralobular ductal epithelial cells. In the acinar cells, there were swollen rough endoplasmic reticulum, irregularly shaped nuclei with chromatin condensation, mitochondrial damage, and retention of secretory granules. Intaralobular ductal epithelial cells showed loss of surface microvilli and damage to mitochondria. In addition to the potential direct effects of irradiation on lacrimal acinar and intralobular ductal epithelial cells, damage to blood vessels and nerve endings seemed to mediate some of the underlying mechanisms of these irradiation-induced ultrastructural changes. In conclusion, using TEM reveals that lacrimal gland is highly sensitive to even small doses of irradiation therapy; in addition, swelling of rough endoplasmic reticulum and aberrant nuclei are the most encountered structural changes. Damage to blood vessels and nerve endings might mediate some of the underlying mechanisms of irradiation-induced secondary injury in lacrimal glands.

An Extended Hypofractionated Palliative Radiotherapy Regimen for Head and Neck Carcinomas

Background

Palliative radiotherapy to patients with head and neck cancer is often necessary, but there is a substantial variation in the treatment regimens reported in the literature, and consensus on the most appropriate schedules does not exist. In order to minimize acute toxicity while at the same time trying to achieve prolonged tumor control, a long hypofractionated regimen has been used routinely in Denmark. In the current retrospective study, we investigated the outcome in patients intended for palliative radiotherapy with this regimen.

Materials and methods

Patients with newly diagnosed head and neck cancer treated with palliative radiotherapy of 52-56 Gy in 13-14 fractions twice weekly from 2009 to 2014 were included. Patients were excluded if they had previously received radiotherapy. Data on disease location, stage, patient performance status (PS), treatment response, acute skin and mucosal toxicity, and late fibrosis were collected prospectively and supplemented with information from medical records.

Results

77 patients were included in the study. Fifty-eight patients (75%) completed the intended treatment. Loco-regional tumor response (complete or partial) was evaluated 2 months posttreatment and observed in 45% of the entire population corresponding to 71% of patients alive. PS had a significant influence on survival (p = 0.007) and on not completing the intended treatment. Grade III or IV acute mucositis were observed in 25%, and grade III or IV acute dermatitis observed in 15%.

Conclusion

Palliative hypofractionated radiotherapy with 52-56 Gy in 13-14 fractions shows good tumor response and tolerability in a vulnerable patient population. However, it may not be suited for patients in poor PS.

Palliative radiotherapy for locally advanced non-metastatic head and neck cancer: A systematic review

OBJECTIVES

The objective of this systematic review was to identify and appraise the existing evidence of role of palliative radiotherapy for locally advanced non-metastatic head and neck cancer.

METHODS

A systematic search of the literature was conducted using Medline, Embase and Cochrane databases and relevant references were included.

RESULTS

Literature search revealed a wide variation in dose fractionation regimens. Reported outcomes showed high efficacy and low rate of significant side effects, except in studies utilising higher doses of radiotherapy where higher grade toxicities were seen. Reported median overall survival was in the range of 3.3-17 months, but most studies reported median survival of around 6 months.

CONCLUSIONS

The choice of palliative radiotherapy varies significantly. This is in contrast to regimens of curative radiotherapy for locally advanced head and neck cancer, which are well standardised. Given the reported relatively short overall survival of this patient group, an ideal treatment should be of the shortest possible duration whilst ensuring effective palliation and minimal side effects. Future well designed trials are needed to evaluate quality of life and duration of side effects in addition to survival and severity of toxicities in this group of patients.

Comparative Evaluation of Three Palliative Radiotherapy Schedules in Locally Advanced Head and Neck Cancer

Background

The aim of the study was to evaluate and compare the efficacy, tolerability and toxicity of three palliative radiotherapy (RT) schedules in locally advanced head and neck carcinoma (LAHNC), i.e. Quad Shot schedule, Christie schedule and conventional palliative schedule.

Methods

The patients were randomly divided into three groups of 30 each. Group I patients were planned for 14.8 Gy in 4 fractions over 2 days, repeated three weekly for two more cycles. Group II patients were planned for 50 Gy in 16 fractions over 3.1 weeks. Group III patients were planned for 20 Gy in 5 fractions over 5 days, repeated after an interval of 3 weeks. The quality of life was assessed before and after RT using University of Washington Quality of Life questionnaire version 4.

Results

Local control rates were 84%, 76%, and 76% for groups I, II and III, respectively. Disease status at 6-month follow-up was no evidence of disease (20%, 28%, and 16%), residual disease (72%, 48%, and 76%), and recurrent disease (8%, 24%, and 8%) in groups I, II and III, respectively. Grade III acute skin reactions were 28%, 44%, and 16% in groups I, II and III, respectively. Grade III acute mucosal reactions were 36%, 56%, and 24% in group I, II and III, respectively. Quality of life improved in all groups after RT.

Conclusion

Quad Shot schedule may be used in LAHNC with better local control and acceptable toxicity as compared to conventional palliative RT schedule in Indian setting.

Cyclical hypofractionated radiotherapy also known as "QUAD Shot" alone using intensity-modulated radiotherapy for squamous cell carcinoma of the parotid gland in an 85-year-old patient with multiple comorbidities

BACKGROUND

Palliative radiotherapy (RT) is not commonly offered to patients with head and neck cancer because of the belief that toxicity from the RT would not provide great palliative benefits. The purpose of this study was for us to report the advantages of cyclical hypofractionated RT (QUAD Shot) using intensity-modulated RT (IMRT) for an elderly comorbid patient with head and neck cancer.

METHODS

An 85-year-old multiple comorbid man with squamous cell carcinoma in the left parotid gland with left facial pain received the IMRT-QUAD Shot (14 Gy/4 fractions, twice-daily treatment with 6 hours interval, on 2 consecutive days) to lesions, which were repeated every 4 weeks 3 times.

RESULTS

With the IMRT-QUAD Shot, he achieved complete left facial pain relief without acute toxicity. At 12 months after the first IMRT-QUAD Shot, he remained without left facial pain, late toxicity, or disease recurrence impacting positively on his quality of life.

CONCLUSION

The IMRT-QUAD shot is reasonable and safe to apply for symptom palliation in elderly multiple comorbid patients with head and neck cancer. 2017 Wiley Periodicals, Inc. Head Neck 39: E55-E60, 2017.

Genomic analysis of exceptional responders to radiotherapy reveals somatic mutations in ATM

Radiation therapy is a mainstay of cancer treatment, yet the molecular determinants of clinical response are poorly understood. We identified exceptional responders to radiotherapy based on clinical response, and investigated the associated tumor sequencing data in order to identify additional patients with similar mutations. Among head and neck squamous cell cancer patients receiving palliative radiotherapy at our institution, we identified one patient with documented complete metabolic response. Targeted sequencing analysis of the tumor identified a somatic frame-shift mutation in ATM, a gene known to be associated with radio-sensitivity in the germline. To validate the association of somatic ATM mutation with radiotherapy response, we identified eight patients with ATM truncating mutations who received radiotherapy, all of whom demonstrated excellent responses with a median local control period of 4.62 years. Analysis of 22 DNA repair genes in The Cancer Genome Atlas (TCGA) data revealed mutations in 15.9% of 9064 tumors across 24 cancer types, with ATM mutations being the most prevalent. This is the first study to suggest that exceptional responses to radiotherapy may be determined by mutations in DNA repair genes. Sequencing of DNA repair genes merits attention in larger cohorts and may have significant implications for the personalization of radiotherapy.

Curative-Intent Aggressive Treatment Improves Survival in Elderly Patients With Locally Advanced Head and Neck Squamous Cell Carcinoma and High Comorbidity Index

For locally advanced head and neck squamous cell carcinoma (HNSCC), therapeutic decisions depend on comorbidity or age. We estimated the treatment outcomes of patients with different Charlson comorbidity index (CCI) scores and ages to determine whether aggressive treatment improves survival.Data from the Taiwan National Health Insurance and cancer registry databases were analyzed, and we included >20-year-old patients with American Joint Committee on Cancer (AJCC) stage III or IV HNSCC (International Classification of Diseases, Ninth Revision, Clinical Modification codes 140.0-148.9) undergoing surgery, chemotherapy (CT), radiotherapy (RT), concurrent chemoradiotherapy (CCRT), sequential CT and RT, or surgery with adjuvant treatment. The exclusion criteria were a past cancer history, distant metastasis, AJCC stage I or II, missing sex data, an age < 20 years, nasopharyngeal cancer, in situ carcinoma, sarcoma, and HNSCC recurrence. The index date was the date of first HNSCC diagnosis, and comorbidities were scored using the CCI. The enrolled patients were categorized into Group 1 (curative-intent aggressive treatments) and Group 2 (best supportive care or palliative treatments).We enrolled 21,174 stage III or IV HNSCC patients without distant metastasis (median follow-up, 3.25 years). Groups 1 and 2 comprised 18,584 and 2232 patients, respectively. After adjustment for age, sex, and clinical stage, adjusted hazard ratios (95% confidence intervals) of overall death in Group 1 were 0.33 (0.31-0.35), 0.34 (0.31-0.36), and 0.37 (0.28-0.49), and those of all-cause death among patients undergoing curative surgical aggressive treatments were 1.13 (0.82-1.55), 0.67 (0.62-0.73), and 0.49 (0.46-0.53) for CCI scores of ≥10, 5 to 9, and <5, respectively.Aggressive treatments improve survival in elderly (≥65 years) and critically ill HNSCC patients. Curative nonsurgical aggressive treatments including definitive RT or CCRT might be suitable for HNSCC patients with CCI scores ≥10.

Palliative Radiation Therapy for Advanced Head and Neck Carcinomas: A Phase 2 Study

PURPOSE

Incurable head and neck cancer is hard to manage with usual palliative care. Radiation therapy (RT) in this setting is sometimes omitted because there is an apprehension that the side effects in the head and neck region might counterbalance the benefits. The objective of this phase 2 study was to evaluate whether highly conformal RT could improve the therapeutic ratio with this comprehensive Quality of Life (QOL) and toxicity evaluation.

METHODS AND MATERIALS

Patients from 2 academic centers, deemed unfit for radical treatment because of their poor medical condition or advanced cancer stage by an experienced tumor board, were offered 25 Gy in 5 daily intensity modulated RT fractions over 1 week to the symptomatic tumor volume. QOL was evaluated with the European Organization for Research and Treatment of Cancer QLQ-C15-PAL and QLQ-H&N35 questionnaires, and toxicities with the Common Terminology Criteria for Adverse Events version 4.0. Survival and time to tumor progression were calculated with the Kaplan-Meier method.

RESULTS

Thirty-two patients were recruited, of whom 66% had at least T4, N3, or M1 disease. The QOL questionnaires completion rate was 86%. Eighty-eight percent of patients received the planned dose. The median overall survival and progression-free survival times were, respectively, 6.5 and 3.2 months. No grade 4 or 5 toxicity was seen. Only 13% of patients had any grade 3 toxicities, and 17% of patients reported no toxicity at all. The QOL was equal or improved, and head and neck symptoms remained equal to or lower than the baseline values for most patients at up to 6 months. Eighty-five percent of patients would have chosen to receive this RT regimen again when asked.

CONCLUSIONS

This palliative RT regimen was highly tolerable and effective in preserving or improving self-reported QOL in most patients for up to 6 months, which corresponds to this population's median overall survival. Given the minimal side effects, intensification could be considered to achieve longer locoregional control.

Palliative head and neck radiotherapy with the RTOG 8502 regimen for incurable primary or metastatic cancers

OBJECTIVES

To report on our institutional experience of palliative radiotherapy (RT) of cancers in the head and neck by the RTOG 8502 'QUAD SHOT' regimen.

METHODS

Seventy-five patients completed at least 1 cycle of palliative RT to the head and neck for primary or metastatic disease based on the RTOG 8502 regimen (3.7 Gy twice daily over 2 consecutive days at 4 week intervals per cycle) between 2/2005 and 7/2014.

RESULTS

Median patient age was 76 years (range 23-97). The most common histologies were squamous cell carcinoma (55%), non-anaplastic thyroid carcinoma (10%) and salivary gland carcinoma (9%). Thirty patients (40%) received prior RT at the palliative site. Twenty-eight patients (37%) completed at least three RTOG 8502 cycles. Sixty-five percent of all patients had a palliative response. Median overall survival was 5.67 months (range, 0.20-34.5). Grade 3 toxicity in 4 patients (5%) consisted of acute dermatitis and functional mucositis. Palliative response was significantly correlated with increasing number of RTOG 8502 cycles (p = 0.012), but not KPS, prior RT, palliative chemotherapy, prior surgery, histology or stage. On survival analysis, palliative response (p < 0.001), KPS ⩾ 70 (p = 0.001), and greater number of RTOG 8502 cycles (p = 0.022) remained independent predictors of improved survival.

CONCLUSIONS

For patients with incurable malignant disease in the head and neck, the palliative RTOG 8502 'QUAD SHOT' regimen provides excellent rates of palliative response with minimal associated toxicity. Patients who are able to complete greater number of RT cycles have higher rates of palliative response and overall survival.

0-7-21 hypofractionated palliative radiotherapy: an effective treatment for advanced head and neck cancers

OBJECTIVE

We report our experience in providing palliative radiotherapy (RT) to patients with head and neck cancers (HNCs). Our hypofractionated regimen, "0-7-21", treats patients with 24 Gy in three fractions.

METHODS

Patients, disease and response data were retrieved for candidates of 0-7-21 from 2005 to 2012. Primary end points included symptom and tumour size responses to RT based on response evaluation criteria in solid tumours (RECIST) guidelines. Secondary end points included progression-free survival (PFS) within the irradiated field, overall survival (OS) and symptomatic PFS (SPFS), calculated using Kaplan-Meier method and adverse events. Cox proportional hazards regression and logistic regression were used to investigate for prognostic factors.

RESULTS

A total of 110 patients were included. Among the patients, 40% and 31% had complete response for symptoms and tumour size, respectively; 42% and 50% had partial response for symptoms and tumour size, respectively; and 15% had stability of symptoms and tumour size. Median 6-month OS was 51%, and PFS within the irradiated field was 39%. Planning target volume was predictive of OS (p < 0.001), PFS (p < 0.001) and SPFS (p < 0.005), while higher TNM stage was associated with poorer tumour response (p = 0.02).

CONCLUSION

0-7-21 is an effective and well-tolerated palliative RT regimen for patients with HNC. There was excellent symptom and local control with acceptable toxicity profile in these patients.

ADVANCES IN KNOWLEDGE

This is the first study to describe the outcomes of 0-7-21 in treating advanced HNCs. The positive results suggest that 0-7-21 provides excellent palliation with minimal toxicity, with significantly less on-treatment time than current published palliative RT regimen.

Clinic Offering Affordable Radiation Therapy to Increase Access to Care for Patients Enrolled in Hospice

This program increased access to palliative radiation therapy (RT) for patients in hospice who would otherwise have not been referred, and identified the need for educational activities at hospice agencies where staff turnover may be high and understanding about palliative RT can be limited.

Role of radiation therapy in palliative care of the patient with cancer

Radiotherapy is a successful, time-efficient, well-tolerated, and cost-effective intervention that is crucial for the appropriate delivery of palliative oncology care. The distinction between curative and palliative goals is blurred in many patients with cancer, requiring that treatments be chosen on the basis of factors related to the patient (ie, poor performance status, advanced age, significant weight loss, severe comorbid disease), the cancer (ie, metastatic disease, aggressive histology), or the treatment (ie, poor response to systemic therapy, previous radiotherapy). Goals may include symptom relief at the site of primary tumor or from metastatic lesions. Attention to a patient's discomfort and transportation limitations requires hypofractionated courses, when feasible. Innovative approaches include rapid response palliative care clinics as well as the formation of palliative radiotherapy specialty services in academic centers. Guidelines are providing better definitions of appropriate palliative radiotherapy interventions, and bone metastases fractionation has become the first radiotherapy quality measure accepted by the National Quality Forum. Further advances in the palliative radiation oncology subspecialty will require integration of education and training between the radiotherapy and palliative care specialties.

Palliative radiotherapy in locally advanced head and neck cancer after failure of induction chemotherapy: comparison of two fractionation schemes

Context:

Among patients with locally advanced head and neck squamous cell cancers (LAHNSCC), the prognosis after nonresponse or progression despite induction chemotherapy (IC) is dismal, and further treatment is often palliative in intent. Given that nonresponse to chemotherapy could indicate subsequent radioresistance, we intended to assess the outcomes with two different fractionation schemes.

Aims:

To compare the outcomes of two fractionation schemes- ’standard’ (consisting 3GyX5 daily fractions for 2 consecutive weeks) versus ‘hybrid’ (6GyX3 fractions on alternate days during the 1^st week, followed by 2GyX5 daily fractions in the 2^nd week).

Settings and Design:

Prospective randomized controlled two-arm unblinded trial.

Materials and Methods:

Patients with locally advanced oropharyngeal, laryngeal, and hypopharyngeal cancers treated with a minimum of two cycles of taxane, platinum, and fluorouracil-based IC were eligible if residual disease volume amounted <30 cm³. Kaplan-Meier survival curves were compared by the log-rank test. Response rates were compared using the unpaired t-test. Quality of life (QOL) was measured via patient reported questionnaires.

Results:

Of the initially enrolled 51 patients, 45 patients (24 from standard arm, and 21 from the hybrid arm) were eligible for analysis. Despite being underpowered to attain statistical significance, there still seemed to be a trend towards improvement in progression-free (Hazard ratio (HR) for progression: 0.5966; 95% CI 0.3216-1.1066) and overall survival (HR for death: 0.6062; 95% CI 0.2676-1.3734) with the hybrid arm when compared to the standard arm. Benefits were also observed with regards to response rates and QOL. Rate of complications were similar in both arms.

Conclusions:

In comparison to the routinely used palliative fractionation scheme of 30 Gray (Gy) in 10 fractions (Fr), the use of hybrid fractionation which integrates hypofractionation in the 1^st week, followed by conventional fractionation in the 2^nd week, could possibly offer better response rates, QOL increments, and potential survival benefits among LAHNSCC patients even after failing to respond to IC.

Long term control of a maxillary sinus mucoepidermoid carcinoma with low dose radiation therapy: a case report

Mucoepidermoid carcinoma of the maxillary sinus is a rare malignancy of the head and neck. The location of this tumour near vital structures and its large size at presentation makes surgical resection with negative margins challenging. In incurable cases, relief from symptoms such as epistaxis may be achieved with radiation therapy. We present a case of mucoepidermoid carcinoma of the maxillary sinus that was effectively palliated with a short course of radiation therapy, achieving complete cessation of bleeding, decrease in tumour size, and long term control. We surveyed the literature on mucoepidermoid carcinomas and propose that some tumours may be particularly radiosensitive, benefiting from even short courses of radiation therapy.

Hypofractionated Palliative Radiotherapy in Locally Advanced Inoperable Head and Neck Cancer: CMC Vellore Experience

BACKGROUND

A novel, short duration, palliative radiotherapy schedule for inoperable head and neck cancer was evaluated in terms of palliation of cancer-related symptoms and acute toxicities.

MATERIALS AND METHODS

Thirty-six patients with inoperable head and neck cancer were included in the study (2010-2012). All patients received 40 Gy in 10 fractions (equivalent dose: 49.8 Gy in conventional fractionation) with 2 fractions per week. Treatment-related toxicity was assessed using Radiation Therapy Oncology Group criteria. Functional Assessment of Cancer Therapy (Head and Neck, FACT H and N) quality of life (QOL) tool was administered before starting and at the completion of radiotherapy. Mean value before and after treatment was compared (paired t-test, P = 0.05, two-tailed for significance).

RESULTS

Thirty-three patients (male: 29, female: 4, mean age: 57.8 ± 9.7 years) were included in the analysis (three patients discontinued treatment due to socioeconomic reasons). All patients had advanced inoperable head and neck cancers (27% IVA, 61% IVB, 9% IVC, TNM stage and 3% recurrent disease). Distressing pain at primary site (42%), dysphagia (18%), neck swelling (30%), and hoarseness (10%) were common presentations. Incidence of grade III mucositis and dermatitis and pain was 18%, 3%, and 24%, respectively. Planned radiotherapy without any interruptions was completed by 73% patients. QOL assessment showed improvement in social well-being (17.4 vs. 20.01, P = 0.03), but no significant change was observed in head and neck specific score (25.1 vs. 25.0, P = NS) after treatment. Reduction of pain was observed in 88% patients and 60% patients had improvement of performance status. Median overall survival of the cohort was 7 months.

CONCLUSIONS

The study shows that this short duration palliative radiotherapy schedule is a clinically viable option for advanced inoperable head and neck cancer to achieve significant palliation of the main presenting symptoms like pain, dysphagia, and throat pain.

Retrospective study of palliative radiotherapy in newly diagnosed head and neck carcinoma

PURPOSE

To examine the patterns of care, outcomes, and prognostic factors for patients with head-and-neck cancer (HNC) treated with palliative radiotherapy (RT).

METHODS AND MATERIALS

An institutional HNC anthology and electronic patient records were used to identify patients with previously untreated HNC of mucosal or salivary gland origin who underwent palliative RT at our institution between July 2003 and June 2008. Overall survival was determined from the start date of RT to either the date of death or the date of last follow-up for living patients. The data were censored if the subject was either lost to follow-up or had not been seen for follow-up at our institution for ≥4 months.

RESULTS

We identified 148 eligible patients. The median age was 72 years (range, 19-94). Of the 148 patients, 12 had Stage II-III, 39 Stage IVA, 36 Stage IVB, and 54 Stage IVC; for 7 patients, the stage was unknown. Oropharyngeal primary cancer (40) was the most common primary site. The Eastern Cooperative Oncology Group performance status was 0 in 15, 1 in 69, 2 in 40, 3 in 19, and 4 in 5 patients. The Adult Co-morbidity Evaluation-27 scale was 0 in 33, 1 in 47, 2 in 44, and 3 in 21. The median radiation dose was 50 Gy (range, 2-70), the median fraction number was 20 (range, 1-40), and the median total treatment time (including breaks) was 29 days (range, 1-80). At analysis, 108 patients (73%) had died, 20 (13.5%) were alive, and 20 (13.5%) had been censored. The median follow-up was 4.8 months, and the median survival time was 5.2 months. Information on the treatment response was available for 103 patients (70%). On multivariate analysis, the radiation dose was an independent predictor of both overall survival (hazard ratio 0.97, 95% confidence interval 0.96-0.99, p <.01) and treatment response (odds ratio 1.05, 95% confidence interval 1.01-1.08, p <.01).

CONCLUSION

For patients considered unsuitable for curative RT, the radiation dose might be an independent predictive factor for both overall survival and treatment response. Additional research is required to more effectively select those patients who might benefit from more aggressive treatment.