NIH-funded research R01 grant

Understanding immune cells' role in gastroparesis

Official title: From stomach tissue to cellular mechanisms: unraveling the role of mononuclear phagocytes in the pathophysiology of gastroparesis

Funded at University of California, San Diego · NIH-10889075 · Data updated 2026-11-12

This study is looking at how certain immune cells in the stomach might be affecting people with gastroparesis, a condition that makes it hard for the stomach to empty properly, and it hopes to find new ways to help manage the symptoms.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of California, San Diego
NIH-funded
Lab location1 site (La Jolla, United States)
Project startSeptember 30, 2021
Project endJuly 31, 2026
Funding year2024
Award (this year)$379,199
NIH project number5R01DK131500-05
Project IDNIH-10889075 on NIH RePORTER

Who could benefit from this research

Could help

Ideal candidates for this research are individuals diagnosed with gastroparesis who experience symptoms like nausea, vomiting, and abdominal pain.

Less likely to help

Patients without a diagnosis of gastroparesis or those with other gastrointestinal disorders may not benefit from this research.

What this research studies

This research investigates the role of immune cells, specifically mononuclear phagocytes, in the gastrointestinal disorder known as gastroparesis, which causes delayed gastric emptying and various gastrointestinal symptoms. By analyzing stomach tissue samples from patients, the researchers aim to uncover how these immune cells are altered in gastroparesis and how these changes may contribute to the disease's symptoms. The study employs advanced techniques like mass cytometry to identify and characterize the immune cell populations in the stomach, providing insights that could lead to new treatment strategies.

Why it matters

Potential benefit: If successful, this research could lead to new therapeutic approaches for managing gastroparesis, potentially improving patients' quality of life.

How similar studies have gone: While the specific approach of examining immune cell dysregulation in gastroparesis is relatively novel, similar studies in other gastrointestinal disorders have shown promising results.

Where this research is happening

  • University of California, San Diego
    La Jolla, United States
    Active

Researchers

  • Principal investigator: Idoyaga, Juliana — University of California, San Diego
  • Study coordinator: Idoyaga, Juliana

Related research

Other NIH-funded projects on the same topics.

  • New England Gastroparesis Consortium: Neurobiology of Gastroparesis

    A national project to learn about gastroparesis in children and adults by creating a registry and gathering information from patients to understand symptoms, quality of life, and disease progression.

    NIH research Massachusetts General Hospital · Boston, United States · NIH-11583186

  • Pediatric and Young Adult Gastroparesis Registry and Disease Course

    This project follows children, teens, and young adults with symptoms of gastroparesis to learn how their symptoms change over time and what factors are tied to different disease patterns.

    NIH research Texas Tech University Health Sciences Center at El Paso · El Paso, United States · NIH-11575566

  • Pediatric gastroparesis: building a nationwide patient registry

    This grant funds a national registry to study gastroparesis and similar tummy problems in children and teens, with the goal of better understanding how the condition affects their daily lives.

    NIH research Baylor College of Medicine · Houston, United States · NIH-11567122

  • Gut-resident macrophages and gastric function in gastroparesis

    A study in people with gastroparesis to understand how gut macrophages affect stomach movement and gut barrier health, with the hope of finding new ways to treat the condition.

    NIH research University of Nevada Reno · Reno, United States · NIH-11430037

  • Gastric electrical stimulation for stomach pain in gastroparesis

    A new approach tests how adjusting a stomach-stimulating implant may reduce pain for people with gastroparesis.

    NIH research University of Louisville · Louisville, United States · NIH-11416260

  • Peptide therapies for gastroparesis in diabetes

    A new peptide-based treatment is being tested to help people with gastroparesis linked to diabetes by improving stomach emptying and reducing inflammation.

    NIH research Cga Therapeuticals Incorporated · San Diego, United States · NIH-11410020

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.