Understanding how ultra-potent opioids harm and how to reverse effects beyond traditional antidotes
Official title: Photoaffinity and Multi-Omic Analysis of Targets Pathways Driving Synthetic Opioid-Induced Toxicity and Reversal
Funded at University of Toledo Health Sci Campus · NIH-11609215 · Data updated 2026-11-12
Researchers are studying why some extremely strong synthetic opioids cause life-threatening effects and how to counter them, including situations where standard antidotes don’t work well.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Toledo Health Sci Campus NIH-funded |
| Lab location | 1 site (Toledo, United States) |
| Project start | September 15, 2026 |
| Project end | August 31, 2027 |
| Funding year | 2026 |
| Award (this year) | $455,827 |
| NIH project number | 1R56DA066988-01 |
| Project ID | NIH-11609215 on NIH RePORTER |
Who could benefit from this research
✓Could help
Ideal candidates are individuals at risk of exposure to ultra-potent opioids or clinicians seeking better reversal strategies, including patients with opioid use disorder or overdose responders.
✕Less likely to help
People not exposed to opioids or those not involved in post-exposure treatment may not directly benefit.
What this research studies
This project uses zebrafish models and advanced protein and gene analyses to map the mechanisms of fentanyl-related toxicity. It will test how blocking the mu-opioid receptor changes responses to fentanyl and identify non-receptor pathways driving harm. The team will create a MOR-deficient zebrafish line and compare it with normal fish to distinguish MOR-dependent and MOR-independent effects, then integrate data to guide new reversal strategies after exposure. A focused, one-year effort aims to translate findings into potential post-exposure treatments beyond naloxone.
Why it matters
Potential benefit: If successful, the work could lead to new post-exposure therapies that more effectively mitigate toxicity from ultra-potent opioids.
How similar studies have gone: Previous zebrafish studies and multi-omics approaches have helped identify non-opioid pathways in toxin responses, supporting the potential for new reversal strategies.
Where this research is happening
-
University of Toledo Health Sci Campus
Toledo, United States Active
Researchers
- Principal investigator: Schiefer, Isaac T — University of Toledo Health Sci Campus
- Study coordinator: Schiefer, Isaac T
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About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page.