Table 4

Side effects of exemplary clinical trials testing epigenetic inhibitors in cancer treatment

DrugTumour entitySide effectsReferences
AN-9 (butyric acid prodrug)Melanoma, lung cancer, leukaemiaModerate vomiting, fever, nausea and fatigue, mild elevation of hepatic transaminase, hyperglycaemia, transient visual toxicity, combination with docetaxel resulted in severe toxicity28 87
Valproic acidLeukaemia, myelodysplasia, cervical cancerNeurological toxicity, bone pain, delayed haematological recovery88 89
Vorinostat (plus paclitaxel plus carboplatin)NSCLCFebrile neutropenia, asthenia, diarrhoea, thrombocytopenia compared with the placebo group (paclitaxel+carboplatin+placebo)NCT00473889
PanobinostatHodgkin’′s lymphoma, multiple myelomaThrombocytopenia, vomiting, diarrhoea, headache and abdominal pain more frequent compared with the placebo group, no significant increase of side effects when combined with bortezomibNCT01034163, NCT01023308
CI-994 (plus gemcitabine)Pancreatic cancerIncreased neutropaenia and thrombocytopenia compared with placebo group42
BI-2536Pancreatic cancerNeutropenia, thrombocytopenia, leucopenia, fatigue90
  • NSCLC, non-small cell lung cancer.