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Biosimilar Nivolumab-Based Combination Therapy in Advanced Oral Cavity Squamous Cell Carcinoma: A Real-World Case Series of Five Patients

Meedimale S, Panda SS, Thummar V, Bhavsar H

Cureus, 2026

Abstract

Squamous cell carcinomas of the head and neck (SCCHN) belongs to a biologically aggressive group of malignancies. The salvage options, after failure of the platinum-based therapy and immune checkpoint inhibitors (ICIs), are usually very limited. The regimen comprising oral methotrexate, erlotinib, and celecoxib (OMCT) has been explored as a well-tolerated, low-dose management option. We present through the case series the clinical outcomes of patients who had recurrent, refractory, or locally advanced SCCHN treated with OMCT in combination with low-dose nivolumab for translatable evidence.

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Evidence Hub reads this as a case series, done in people. Its evidence level is 5 of 5 (Very low · case / narrative / animal / in vitro / in silico). Case reports, narrative reviews, and animal, cell or computer-model studies give the weakest evidence for human health.

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