Toxicity
The most common grade 3 or 4 toxicities were thrombocytopenia, mucositis, neutropenia and anaemia. The majority of adverse effects were reversible or manageable by dose modifications, however, 23% of patients discontinued treatment due to adverse effects, most frequently mucositis (6%) and thrombocytopenia (5%).r
Table 1: Adverse events (safety population) in ≥ 10% of patients r

© Journal of Clinical Oncology 2011
Various strategies have been used to minimise toxicity and therefore maximise exposure to pralatrexate. Preliminary results from a phase 2 study has demonstrated that the addition of calcium folinate (leucovorin) as adjunctive treatment has been shown to reduce the rates of both ≥ Grade 2, and ≥ Grade 3 mucositis.r