NIH-funded research R01 grant

Understanding how natural opioids affect motivation in the brain

Official title: Investigating non-canonical mechanisms of endogenous opioids on motivation in dorsal midbrain

Funded at Washington University · NIH-11017075 · Data updated 2026-11-12

This study is looking at how natural opioids in the brain affect our motivation and behavior, which could help us understand changes in motivation seen in mental health conditions, and it might lead to new treatments that could help people feel more motivated.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionWashington University
NIH-funded
Lab location1 site (Saint Louis, United States)
Project startMarch 9, 2023
Project endJanuary 31, 2028
Funding year2025
Award (this year)$445,276
NIH project number5R01MH132504-03
Project IDNIH-11017075 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are adults over 21 years old who may be experiencing motivational issues related to mental health conditions.

Less likely to help

Patients with conditions unrelated to motivation or those under 21 years old may not benefit from this research.

What this research studies

This research investigates the role of natural opioids in specific areas of the brain that influence motivation and behavior. By examining how these opioids interact with neural circuits, the study aims to uncover mechanisms that could explain changes in motivation seen in various mental health conditions. The research employs advanced techniques, including CRISPR-Cas9, to manipulate opioid activity and observe its effects on behaviors such as appetite and motivation. Patients may benefit from insights that could lead to new treatments for mental health disorders related to motivation.

Why it matters

Potential benefit: If successful, this research could lead to new therapeutic strategies for treating mental health conditions characterized by motivational deficits.

How similar studies have gone: Previous research has shown promising results in understanding opioid mechanisms in motivation, suggesting that this approach could yield valuable insights.

Where this research is happening

  • Washington University
    Saint Louis, United States
    Active

Researchers

  • Principal investigator: Castro, Daniel Charles — Washington University
  • Study coordinator: Castro, Daniel Charles

Related research

Other NIH-funded projects on the same topics.

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.