What is a research study?
A research study, also known as a clinical trial, is a scientific study that evaluates the safety and effectiveness of an investigational drug. A research study may show that the investigational drug is better than, as good as, or worse than the standard treatment or inactive placebo (looks like the investigational drug but contains no active ingredient). Qualified doctors, nurses, and other medical professionals are responsible for conducting the study.
It is only through the completion of research studies that investigational drugs can be evaluated and, if proven safe and effective, approved for a particular use. Different regulatory bodies in different countries will provide this approval after a thorough review. Prescription medications in use today were first proven safe and effective during research studies.
About the study drug
The active ingredient in REL-1017 is esmethadone. REL-1017 interacts with a family of brain receptors called N-methyl-D-aspartate (NMDA) receptors, which are unique and distinct from other brain receptors 1,2. The active ingredient in REL-1017 tablets is esmethadone. Esmethadone is also sometimes referred to as dextro-methadone or d-methadone. Opioid effects, such as addiction and withdrawal, have not been seen with esmethadone.
One of the purposes of Phase 3 clinical trials is to evaluate the potential for adverse events. In Phase 1, Phase 2 and similar Phase 3 studies REL-1017 was found to be overall well tolerated 3,4,5. A recently completed dedicated study called the Human Abuse Potential (HAP) study showed that REL-1017 does not have addictive potential 6.