Nor was there an association between ERCC1 19442C>A genotypes and grade 3 or 4 haematological toxicity during the first cycle (leukopenia, P=0.273; neutropenia, P=0.290; anaemia, P=1.000; thrombocytopenia, P=1.000). The gene discussed is ERCC1; the disease is Thrombocytopenia.