Methadone for Postoperative Pain

(MELODY Trial)

This trial tests whether using methadone, a long-acting opioid, during surgery can improve pain control and recovery afterward. Methadone may provide better and longer-lasting pain relief compared to usual short-acting opioids. The study compares a single dose of methadone to standard opioid treatments during surgery. Individuals planning for non-heart-related surgery and expecting to stay in the hospital for at least a day might be suitable candidates for this trial. As a Phase 3 trial, this study represents the final step before FDA approval, offering participants the opportunity to contribute to a potentially groundbreaking treatment.

The trial information does not specify if you need to stop taking your current medications. However, if you are using opioids regularly, you may not be eligible to participate.

Research has shown that using methadone during surgery is generally safe for managing postoperative pain. Studies found that patients who received methadone experienced side effects, such as nausea and vomiting, similar to those who took other pain medications. Importantly, methadone does not increase the risk of serious breathing problems compared to other short-acting painkillers.

Unlike the standard of care, which typically involves short-acting opioids like fentanyl or hydromorphone, methadone-based anesthesia offers a unique approach to managing postoperative pain. Methadone is a long-acting opioid, which means it could provide more sustained pain relief with fewer doses. This could potentially reduce the need for additional opioids during surgery and minimize the risk of opioid-related side effects. Researchers are excited about methadone's potential to improve pain management outcomes and enhance patient recovery experiences.

Research has shown that methadone effectively manages pain after surgery. In this trial, participants in the experimental arm will receive methadone-based anesthesia. Studies have found that patients who received methadone during surgery reported less pain than those who received other painkillers like fentanyl or morphine. Specifically, one study showed that patients who took methadone experienced much lower pain levels at their first follow-up visit after surgery. Another study found that methadone reduced the need for additional pain medication post-surgery. Methadone affects pain signals in the brain and lasts longer, aiding in better pain control and a smoother recovery.²⁴⁶⁷⁸