Open-Label Placebo for Pain Management After Periacetabular Osteotomy

(COLP PAO Trial)

This trial explores how a placebo (a pill with no active medication) might help manage pain after hip surgery for developmental dysplasia of the hip. Participants will be divided into two groups: one will receive a placebo pill alongside their regular pain medication, while the other will receive only the regular pain medication. The goal is to determine if adding a placebo can enhance pain management. Suitable candidates have no prior opioid use and are undergoing a specific hip surgery due to hip dysplasia. As an unphased trial, this study provides a unique opportunity to contribute to understanding innovative pain management strategies.

The trial does not specify if you need to stop taking your current medications. However, it mentions that participants will receive placebo pills alongside prescribed opioids, so you may continue with your prescribed pain medications.

Research has shown that open-label placebos, where patients know they are taking a placebo, are generally safe. They have been used in pain management without causing major side effects. In this trial, participants take the placebo along with regular pain medicine after surgery. The placebo itself is safe, with no known serious side effects. Studies suggest that using a placebo can sometimes reduce the amount of real medicine needed, which could be beneficial. Overall, past research indicates that the treatment is well-tolerated and safe.¹²³⁴⁵

Researchers are excited about the use of an open-label placebo for pain management after periacetabular osteotomy because it offers a unique non-drug approach to pain relief. Unlike traditional treatments that rely solely on active medication like opioids, this method incorporates a placebo openly acknowledged to participants, potentially harnessing the power of suggestion and psychological factors to enhance pain relief. This could lead to reduced opioid consumption, lowering the risk of side effects and dependence, which are significant concerns with standard opioid therapy.

Research has shown that even when people know they are taking a placebo—a pill with no active medicine—it can still help reduce pain. Studies have found that patients who took these placebos reported feeling less pain, despite knowing the pills were inactive. The power of belief and expectation likely explains this effect. In this trial, one group of participants will receive an open-label placebo alongside their regular pain treatment after periacetabular osteotomy (PAO). This approach might reduce the need for extra medication, such as opioids, potentially leading to less pain and a quicker recovery for patients.¹²³⁴⁶