title: Cancer pain.
abstract: OBJECTIVE
  Cancer pain management is in continuous innovation and new data are available that could change the therapeutical approach and guidelines.
  
  
  RESULTS
  There are different fields of research that produce new data and interesting findings. The principal data regard the factors influencing the analgesic response, breakthrough cancer pain management, opioid switching, and pharmacogenetics.
  
  
  CONCLUSIONS
  The findings reported in this review provide new ideas to be developed in further studies to confirm or not confirm some suggestive data.
authors.affiliation: Anesthesia and Intensive Care Unit and Pain Relief and Palliative Care Unit, La Maddalena Cancer Center, Palermo, Italy. terapideldolore@lamaddalenanet.it
authors.forename: Sebastiano
authors.initials: S
authors.lastname: Mercadante
mesh_terms: D000700:Analgesics / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D000701:Analgesics, Opioid / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use; D059390:Breakthrough Pain / Q000188:drug therapy; D057915:Drug Substitution; D006801:Humans; D009369:Neoplasms / Q000150:complications*; D010146:Pain / Q000188:drug therapy* / Q000235:genetics; D059408:Pain Management / Q000379:methods*
chemical_list: D000700:Analgesics; D000701:Analgesics, Opioid