Comparing two medications for managing low blood pressure during major surgeries.

PHEnylephrine versus NOrepinephrine in Major NONcardiac surgery (PHENOMeNON): Foundational Studies for a Pragmatic Randomized Clinical Trial.

NIH-funded research University of Michigan at Ann Arbor · NIH-11021098

This study is looking at how two medications, norepinephrine and phenylephrine, help treat low blood pressure during major surgeries, and it aims to find out which one works better for patients like you.

Quick facts

Grant typeNIH-funded research
Study typeNIH-funded research
Funding institutionUniversity of Michigan at Ann Arbor NIH-funded
Lab location1 site (Ann Arbor, United States)
Project IDNIH-11021098 on NIH RePORTER

What this research studies

This research investigates how two different medications, norepinephrine and phenylephrine, are used to treat low blood pressure that can occur during major surgeries requiring general anesthesia. It aims to gather data on current practices and clinician opinions regarding these medications across various institutions. The findings will help develop a pilot clinical trial to determine which medication is more effective in improving patient outcomes during surgery. Patients undergoing major non-cardiac surgeries may be directly impacted by the results of this research.

Who could benefit from this research

Good fit: Ideal candidates for this research are adults over 21 years old who are scheduled for major non-cardiac surgeries requiring general anesthesia.

Not a fit: Patients who are not undergoing major surgeries or those who do not require general anesthesia may not benefit from this research.

Why it matters

Potential benefit: If successful, this research could lead to improved management of low blood pressure during surgeries, potentially reducing complications like kidney injury and enhancing overall patient safety.

How similar studies have performed: Previous research has shown varying success in the use of vasopressors during surgery, indicating that this area is still actively being explored and holds potential for new insights.

Where this research is happening

Ann Arbor, United States

Researchers

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 below.
Conditions acute kidney injury
Last reviewed 2026-06-13 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.