NIH-funded research R01 grant

Targeting the brain changes that cause depression in Parkinson's

Official title: Identifying and targeting the neural basis of depression in Parkinson's disease

Funded at Yale University · NIH-11308687 · Data updated 2026-11-12

Using brain PET and MRI scans, researchers will look for specific synapse and network changes linked to depression in people with Parkinson's and try treatments aimed at those changes.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionYale University
NIH-funded
Lab location1 site (New Haven, United States)
Project startApril 1, 2024
Project endMarch 31, 2029
Funding year2026
Award (this year)$623,499
NIH project number5R01NS125482-03
Project IDNIH-11308687 on NIH RePORTER

Who could benefit from this research

Could help

Adults with Parkinson's disease who are currently experiencing depressive symptoms and can safely undergo PET and MRI scans are ideal candidates.

Less likely to help

People without Parkinson's, those with severe cognitive impairment, or anyone who cannot have PET/MRI scans (for example due to implanted devices or pregnancy) may not directly benefit from participation.

What this research studies

If you join, you would get a PET scan that measures synaptic density and an fMRI that shows how brain areas connect. The team will compare people with Parkinson's and depression, people with Parkinson's without depression, people with major depression, and healthy volunteers to find what is unique to depression in Parkinson's. These imaging findings will point to specific brain circuits and synaptic losses that could be targeted by new treatments. The goal is to move from imaging discoveries to interventions that better treat depression in Parkinson's.

Why it matters

Potential benefit: Could lead to targeted treatments that relieve depression in Parkinson's and possibly slow related worsening of function.

How similar studies have gone: Prior imaging work has shown lower synaptic density in Parkinson's and links to depression, but combining PET and fMRI to find unique targets for depression in Parkinson's is a relatively new approach.

Where this research is happening

  • Yale University
    New Haven, United States
    Active

Researchers

  • Principal investigator: Holmes, Sophie — Yale University
  • Study coordinator: Holmes, Sophie

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.