scholarly journals Concurrent development of high-stage cutaneous squamous cell carcinoma (cSCC) during complete response of metastatic cSCC to PD-1 blockade with cemiplimab

2021 ◽  
Author(s):  
Jacob D. Siegel ◽  
Aarti Bhatia ◽  
Christine J. Ko ◽  
Sean R. Christensen
2017 ◽  
Vol 177 (4) ◽  
pp. 1131-1133 ◽  
Author(s):  
J. Duran ◽  
F.C. Morgan ◽  
P.S. Karia ◽  
C.D. Schmults

2014 ◽  
Vol 32 (4) ◽  
pp. 327-334 ◽  
Author(s):  
Pritesh S. Karia ◽  
Anokhi Jambusaria-Pahlajani ◽  
David P. Harrington ◽  
George F. Murphy ◽  
Abrar A. Qureshi ◽  
...  

Purpose To compare American Joint Committee on Cancer (AJCC), International Union Against Cancer (UICC), and Brigham and Women's Hospital (BWH) tumor (T) staging systems for cutaneous squamous cell carcinoma and validate BWH staging against prior data. Patients and Methods Primary tumors diagnosed from 2000 to 2009 at BWH (n = 1,818) were analyzed. Poor outcomes (local recurrence [LR], nodal metastasis [NM], and disease-specific death [DSD]) were analyzed by T stage with regard to each staging system's distinctiveness (outcome differences between stages), homogeneity (outcome similarity within stages), and monotonicity (outcome worsening with increasing stage). Results AJCC and UICC T3 and T4 were indistinct with overlapping 95% CIs for 10-year cumulative incidences of poor outcomes, but all four BWH stages were distinct. AJCC and UICC high-stage tumors (T3/T4) were rare at 0.3% and 3% of the cohort, respectively. Most poor outcomes occurred in low stages (T1/T2; AJCC: 86% [95% CI, 77% to 91%]; UICC: 70% [61% to 79%]) resulting in heterogeneous outcomes in T1/T2. Conversely, in BWH staging, only 5% of tumors were high stage (T2b/T3), but they accounted for 60% (95% CI, 50% to 69%) of poor outcomes (70% of NMs and 83% of DSDs) indicating superior homogeneity and monotonicity as previously defined. Cumulative incidences of poor outcomes were low for BWH low-stage (T1/T2a) tumors (LR, 1.4% [95% CI, 1% to 2%]; NM, 0.6% [95% CI, 0% to 1%]; DSD, 0.2% [95% CI, 0% to 0.5%]) and higher for high-stage (T2b/T3) tumors (LR, 28% [95% CI, 19% to 38%]; NM, 25% [95% CI, 16% to 35%]; and DSD, 22% [95% CI, 13% to 34%]), which validated an earlier study of an alternative staging system. Conclusion BWH staging offers improved distinctiveness, homogeneity, and monotonicity over AJCC and UICC staging. Population-based validation is needed. BWH T2b/T3 tumors define a high-risk group requiring further study for optimal management.


2021 ◽  
Vol 15 (1) ◽  
Author(s):  
Isabella Gruber ◽  
Oliver Koelbl

Abstract Background Patients with large cutaneous squamous cell carcinoma of the scalp are a treatment challenge. We report a case of dramatic radiotherapy response of a patient with a giant cutaneous squamous cell carcinoma of the scalp with extensive skull destruction and suspected infiltration of the dura mater and superior sagittal sinus. This case is the first report of this kind in the literature that shows that large bone defects can heal with the resolution of tumor and inflammation by secondary intention without surgical reconstruction. We want to put an end to concerns about radiocurability of tumors with extensive bone involvement, and show sustained complete response after definitive radiotherapy and programmed cell death protein-1 inhibiting antibody therapy. Case presentation A 74-year-old White man presented with a 7.2 × 6.8 × 5.5 cm painless tumor on the right parietal region of the scalp. Medical imaging revealed widespread destruction of the skull and suspected infiltration of the dura mater and superior sagittal sinus. Biopsies showed cutaneous squamous cell carcinoma (cT4a cN0 cM0, stage IVA). The patient was treated with a total dose of 60 Gy, at 2 Gy per daily fraction with volumetric modulated arc therapy using 6 megavoltage photons. The biologically effective dose (alpha/beta 10 Gy) was 72 Gy. The tumor response correlated with dose received. The patient had a massive tumor necrosis secondary to tumor shrinkage after 18 fractions (36 Gy, biologically effective dose 43.2 Gy). Leakage of cerebrospinal fluid did not occur. Radiotherapy did not hamper the patient’s quality of life. The patient had a clear regression of the initial tumor on the final day of radiotherapy. The bone defect healed by secondary intention without surgical interventions. The patient achieved a complete response with a good cosmetic result after 82 days follow-up. He started a programmed cell death protein-1 inhibiting antibody therapy with cemiplimab 2 months after radiotherapy, and is now at 10 months follow-up without evidence of recurrence. Conclusion Definitive radiotherapy is a safe and highly effective therapy for giant tumors of the scalp with extensive bone destruction. We report a sustained complete response with a good cosmetic result after secondary wound healing.


2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Charles Lin ◽  
Trishna Ballah ◽  
Michelle Nottage ◽  
Karen Hay ◽  
Benjamin Chua ◽  
...  

Abstract Background Patients with unresectable advanced cutaneous squamous cell carcinoma (cSCC) are generally treated with palliative intent. Immune checkpoint blockade has significant activity in the palliative setting in patients with recurrent or metastatic cSCC. This single arm phase 2 prospective study aims to investigate the combination of curative intent chemoradiation and durvalumab (anti-PD-L1 checkpoint inhibitor) for this patient cohort. Methods Patients with unresectable locally and or regionally advanced pathologically confirmed cSCC (stage III-IVa) deemed fit for CRIO by consensus of the Multidisciplinary meeting will be eligible. In the first stage of a two-stage minimax design, we aim to recruit a total of 15 patients. If fewer than 7 patients achieved a complete response in the first stage, we will conclude the treatment is not more effective than standard treatment. The co-primary endpoints of CRIO are the safety of treatment (acute and late toxicities) and the rate of complete response. Secondary endpoints would include overall survival, progression free survival, and locoregional control. Translational research endpoints including biomarkers (CD73, CD39, PD-1, PD-L1) will also be explored utilising multiplex immunohistochemistry on tumour biopsy samples obtained prior to commencing treatment and during treatment (week 2). In addition, the utility of CXCR-4 PET/CT scan will be explored. Discussion CRIO is a novel trial evaluating the combination of curative intent chemoradiotherapy with concurrent and adjuvant durvalumab for patients with unresectable stage III-IVa cSCC. Trial registration: Trial registered with the Australian New Zealand Clinical Trial Registry (ACTRN12618001573246)


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Luke S. McLean ◽  
Karda Cavanagh ◽  
Rodney J. Hicks ◽  
Jason Callahan ◽  
Jing Xie ◽  
...  

Abstract Background The role of FDG-PET/CT imaging in assessing response to immunotherapy in advanced cutaneous squamous cell carcinoma (CSCC) is unknown. This study compared complete metabolic response (CMR) rates by FDG-PET and RECIST1.1 via CT or MRI in patients on cemiplimab for > 10 months. Methods This was a single-centre retrospective study of 15 patients treated with cemiplimab for advanced CSCC who had CT/MRI and FDG-PET/CT at > 10 months to assess metabolic treatment response. The median age was 73 years (range 55–84) and 93% were male. RECIST1.1 and PERCIST1.0 tumor responses were evaluated by blinded readers. Results Seventy-three percent (11/15) (95%CI 44.9, 92.2%) achieved a CMR on PET. Of these 11, on RECIST1.1 there was one complete response, 9 partial responses and one stable disease. Conclusions In patients on cemiplimab for > 10 months, there was discordance between CR rates on FDG-PET versus RECIST1.1. FDG-PET/CT may have utility for clarifying depth of response in patients treated with immunotherapy for CSCC.


2020 ◽  
Vol 12 (1) ◽  
pp. 37-41 ◽  
Author(s):  
Marcos Oro-Ayude ◽  
Hae Jin Suh-Oh ◽  
Victor Sacristán-Santos ◽  
Patricia Vázquez-Bartolomé ◽  
Ángeles Flórez

Nivolumab is a programmed death receptor 1 (PD-1) inhibitor. It is part of a group of drugs known as immune checkpoint blockers, which enable potent and durable T-cell responses against several tumors. We report the case of a patient with a metastatic squamous cell carcinoma, who is being treated with nivolumab. This patient achieved a complete response and continues treatment without progression signs, supporting the notion that PD-1 inhibition can induce long-term remission and is well tolerated in this type of patient.


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