scholarly journals Recurrence and Disease-Free Survival in Head and Neck Squamous Cell Carcinoma After Margin-Free Resection on Frozen Section: An Institutional Perspective

Cureus ◽  
2020 ◽  
Author(s):  
Atif A Hashmi ◽  
Syeda N Iftikhar ◽  
Rimsha Haider ◽  
Nabeel N Baig ◽  
Muhammad Ghani Asif ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Head And Neck ◽  
Squamous Cell ◽  
Frozen Section ◽  
Disease Free Survival ◽  
Neck Squamous Cell Carcinoma ◽  
Institutional Perspective ◽  
Free Survival ◽  
Disease Free

809 Phase 2 trial of neoadjuvant and adjuvant PD-1 checkpoint blockade in local-regionally advanced, resectable HNSCC indicates pathological response is associated with high disease-free survival

2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A859-A860
Author(s):  
Trisha Wise-Draper ◽  
Shuchi Gulati ◽  
Vinita Takiar ◽  
Sarah Palackdharry ◽  
Francis Worden ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
High Risk ◽  
Cell Carcinoma ◽  
Head And Neck ◽  
Squamous Cell ◽  
Disease Free Survival ◽  
Pathological Response ◽  
Intermediate Risk ◽  
Free Survival ◽  
Disease Free

BackgroundPatients with newly diagnosed, resected, head and neck squamous cell carcinoma (HNSCC) with high-risk (positive margins, extracapsular spread [ECE]) or intermediate-risk pathological features have an estimated 1-year disease free survival (DFS) of 65% and 69%, respectively.1 PD-1/PD-L1 immune checkpoint blockade has improved survival of patients with recurrent/metastatic HNSCC, and preclinical models indicate radiation upregulates PD-L1.2 Therefore, we hypothesized that pre and post-operative administration of the PD-1 inhibitor pembrolizumab would improve 1-year DFS for patients with resectable, loco-regionally advanced (clinical T3/4 and/or ≥2 nodal metastases) HNSCC (NCT02641093).MethodsEligible patients received pembrolizumab (200 mg I.V. x 1) 1-3 weeks before resection. Adjuvant pembrolizumab (q3 wks x 6 doses) was administered with weekly cisplatin (40mg/m2 X 6) and radiation (60-66Gy) for those with high-risk features and radiation alone for patients with intermediate-risk features. The primary endpoint was DFS, which was compared by log-rank test to historical controls (RTOG 9501). Evidence of pathological response to neoadjuvant pembrolizumab was evaluated by comparing pre- and post-surgical tumor specimens for treatment effect (TE) defined as tumor necrosis and/or histiocytic inflammation and giant cell reaction to keratinaceous debris. Response was classified as none (NPR, <20%), partial (PPR, ≥20% and <90%) and major (MPR, ≥90%) pathological response. Gene expression analysis in paired tumor specimens was evaluated by Nanostring.ResultsSixty-six of 84 enrolled patients had received adjuvant pembrolizumab and therefore were evaluable for DFS at the time of interim analysis. Patient characteristics included: median age 59 (range of 27 – 76) years; 30% female; 85% oral cavity, 11% larynx, and 2% human papillomavirus negative oropharynx; 85% clinical T3/4 and 68% ≥2N; 41(51%) high-risk (positive margins, 49%; ECE, 80%). At a median follow-up of 16 months, 1-year DFS was 66% (95%CI 0.48-0.84) in the high-risk group (p=1) and 91% (95%CI 0.79-1) in the intermediate-risk group (versus 69% in RTOG 9501, p=0.05) (figure 1). Among 70 patients evaluable for pathological response, TE was scored as NPR in 40, PPR in 27, and MPR in 3 patients. Patients with pathological response that were also evaluable for DFS (PPR + MPR) had significantly improved 1-year DFS when compared with those with NPR (100% versus 57%, p=0.0033; HR = 0.18 [95%CI 0.05-0.64]) (figure 2). PPR/MPR was associated with robust macrophage infiltration via Nanostring.Abstract 809 Figure 1Disease Free Survival by Pathological RiskPatients were stratified by pathological risk and DFS was measuredAbstract 809 Figure 2Disease Free Survival by Pathological ResponsePaired patient tissue was assessed for treatment effect (TE) and patients with greater than or equal to 20% TE were considered to have developed pathological response. Patients were stratified into responders and non-responders and DFS was determined.ConclusionsNeoadjuvant and adjuvant pembrolizumab led to high DFS in intermediate-risk, but not high-risk, resected HNSCC patients. Pathological response to neoadjuvant pembrolizumab was associated with high 1-year DFS.AcknowledgementsWe’d like to acknowledge the UCCC clinical trials office for their hard work on this study as well as our patients. We’d also like to acknowledge Merck & Co, Inc as they partially funded the clinical trial.Trial RegistrationNCT02641093Ethics ApprovalThis study was approved by the University of Cincinnati IRB with approval number 2015-6798ReferencesCooper JS, Pajak TF, Forastiere AA, et al. Postoperative concurrent radiotherapy and chemotherapy for high-risk squamous-cell carcinoma of the head and neck. N Engl J Med 2004;350(19):1937-1944. doi:10.1056/NEJMoa032646Oweida A, Lennon S, Calame D, et al. Ionizing radiation sensitizes tumors to PD-L1 immune checkpoint blockade in orthotopic murine head and neck squamous cell carcinoma. Oncoimmunology2017;6(10):e1356153. Published 2017 Aug 3. doi:10.1080/2162402X.2017.1356153

scholarly journals PD-L1 expression predicts longer disease free survival in high risk head and neck cutaneous squamous cell carcinoma

Pathology ◽  
2017 ◽  
Vol 49 (5) ◽  
pp. 499-505 ◽  
Author(s):  
Edward Roper ◽  
Trina Lum ◽  
Carsten E. Palme ◽  
Bruce Ashford ◽  
Sydney Ch'ng ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
High Risk ◽  
Cell Carcinoma ◽  
Head And Neck ◽  
Squamous Cell ◽  
Disease Free Survival ◽  
Cutaneous Squamous Cell Carcinoma ◽  
Free Survival ◽  
Disease Free

scholarly journals Anal squamous cell carcinoma in a high HIV prevalence population

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Danielle R. L. Brogden ◽  
Christopher C. Khoo ◽  
Christos Kontovounisios ◽  
Gianluca Pellino ◽  
Irene Chong ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Disease Free Survival ◽  
Hiv Positive ◽  
Anal Squamous Cell Carcinoma ◽  
Free Survival ◽  
Persons Living With Hiv ◽  
Disease Free ◽  
Hiv Negative

AbstractAnal Squamous Cell Carcinoma (ASCC) is a rare cancer that has a rapidly increasing incidence in areas with highly developed economies. ASCC is strongly associated with HIV and there appears to be increasing numbers of younger male persons living with HIV (PLWH) diagnosed with ASCC. This is a retrospective cohort study of HIV positive and HIV negative patients diagnosed with primary ASCC between January 2000 and January 2020 in a demographic group with high prevalence rates of HIV. One Hundred and seventy six patients were included, and clinical data was retrieved from multiple, prospective databases. A clinical subgroup was identified in this cohort of younger HIV positive males who were more likely to have had a prior diagnosis of Anal Intraepithelial Neoplasia (AIN). Gender and HIV status had no effect on staging or disease-free survival. PLWH were more likely to develop a recurrence (p < 0.000) but had a longer time to recurrence than HIV negative patients, however this was not statistically significant (46.1 months vs. 17.5 months; p = 0.077). Patients known to have a previous diagnosis of AIN were more likely to have earlier staging and local tumour excision. Five-year Disease-Free Survival was associated with tumour size and the absence of nodal or metastatic disease (p < 0.000).

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