Barely Significant

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A greater (albeit only at a statistical trend level) portion of the evaluable 24 patients within the 26-patient group with favorable responses had failed after first-line therapy radiation alone or in combination with the temozolomide in first-line vs. other radiation plus other chemotherapy agents (paclitaxel, nitrosoureas, carboplatin, topoisomerase inhibitors, and anthracyclines) than 54 evaluable patients within the 63-patient non-responder population (13/24 [54%] vs. 19/54 [35%], G = 6.99. p = 0.07).
With regards to tumour tissue processing methods, the use of fresh frozen (FF) samples for tumour tissue instead of formalin-fixed paraffin-embedded (FFPE) marginally increased from 57.1% to 66.7%, suggesting fragmentation of DNA in FFPE processing may be significant, especially when the detection assay relies on amplicon-based amplification [ 72 , 100 , 148 ]. 3.4.