Contents

Disclaimer

Oxford University Press makes no representation, express or implied, that the drug dosages in this book are correct. Readers must therefore always check the product information and clinical procedures with the most up to date published product information and data sheets provided by the manufacturers and the most recent codes of conduct and safety regulations. The authors and the publishers do not accept responsibility or legal liability for any errors in the text or for the misuse or misapplication of material in this work. Except where otherwise stated, drug dosages and recommendations are for the non-pregnant adult who is not breastfeeding.

Show Summary Details
Page of

COMT and morphine use in cancer pain 

COMT and morphine use in cancer pain
Chapter:
COMT and morphine use in cancer pain
Author(s):

Fausto Morell-Ducos

DOI:
10.1093/med/9780198834359.003.0082
Page of

PRINTED FROM OXFORD MEDICINE ONLINE (www.oxfordmedicine.com). © Oxford University Press, 2016. All Rights Reserved. Under the terms of the licence agreement, an individual user may print out a PDF of a single chapter of a title in Oxford Medicine Online for personal use (for details see Privacy Policy and Legal Notice).

date: 16 February 2020

The landmark paper discussed in this chapter is ‘Genetic variation in the catechol-O-methyltransferase (COMT) gene and morphine requirements in cancer patients with pain’, published by Rakvåg et al. in 2008. Genetic variation contributes to differences in pain sensitivity and response to analgesics. Catecholamines are involved in the modulation of pain and are metabolized by catchol-O-methyltransferase (COMT). Genetic variability in the COMT gene may therefore contribute to differences in pain sensitivity and response to analgesics. It has been shown that a polymorphism in the COMT gene, Rs4680 (val158met), influences pain sensitivity and efficacy for morphine in cancer pain treatment. This study investigated whether the variability in other regions in the COMT gene also contributes to the inter-individual variability of morphine efficacy by mapping 11 single nucleotide polymorphisms, constructing haplotypes from them, and then comparing genotypes and haplotypes against pharmacological, demographic, and patient symptom measurements in patients receiving morphine for cancer pain.

Access to the complete content on Oxford Medicine Online requires a subscription or purchase. Public users are able to search the site and view the abstracts for each book and chapter without a subscription.

Please subscribe or login to access full text content.

If you have purchased a print title that contains an access token, please see the token for information about how to register your code.

For questions on access or troubleshooting, please check our FAQs, and if you can't find the answer there, please contact us.