NIH-funded research R01 grant

Protein-polymer treatment for Sjögren's

Official title: Protein-polymer nanomedicine for Sjogren's Syndrome

Funded at University of Southern California · NIH-11251228 · Data updated 2026-11-12

This project creates tiny protein-polymer medicines intended to reduce eye and mouth dryness and inflammation for people with Sjögren's syndrome.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Southern California
NIH-funded
Lab location1 site (Los Angeles, UNITED STATES)
Project startMarch 1, 2017
Project endDecember 31, 2027
Funding year2026
Award (this year)$594,073
NIH project number5R01EY026635-09
Project IDNIH-11251228 on NIH RePORTER

Who could benefit from this research

Could help

People with Sjögren's syndrome who have active lacrimal or salivary gland inflammation and bothersome dry eye or dry mouth despite standard topical care are the likely candidates for related future trials.

Less likely to help

Patients whose dryness is caused by non-autoimmune conditions, those without active gland inflammation, or patients with advanced complications like lymphoma may not benefit from this targeted approach.

What this research studies

Researchers are designing protein-polymer nanoparticles that can carry medicines both directly to tear and salivary glands and systemically through the body. They will test combined local (gland-directed) and systemic delivery in mouse models that mimic Sjögren's symptoms to see if this approach reduces gland inflammation and dry eye/mouth. The goal is to treat both the local gland problems and the wider immune-driven symptoms that some patients experience. If the platform works well in animals, it could be adapted for future human trials.

Why it matters

Potential benefit: If successful, this approach could better relieve dry eye and dry mouth and reduce systemic inflammation with more targeted therapy and fewer broad immunosuppressive side effects.

How similar studies have gone: Some targeted delivery and biologic treatments have shown promise in autoimmune diseases, but combining gland-focused plus systemic delivery using protein-polymer nanoparticles is largely experimental.

Where this research is happening

  • University of Southern California
    Los Angeles, United States
    Active

Researchers

  • Principal investigator: Hamm-Alvarez, Sarah F — University of Southern California
  • Study coordinator: Hamm-Alvarez, Sarah F

Related research

Other NIH-funded projects on the same topics.

  • Glycolytic metabolites, Calcium entry, and Sjögren’s syndrome

    A patient-focused look at how tiny changes in metabolism and calcium signaling might contribute to Sjögren’s syndrome and its effects on saliva.

    NIH research University of Texas Hlth Science Center · San Antonio, United States · NIH-11359626

  • How aging and cell stress damage salivary glands in Sjögren’s

    Researchers are testing whether getting older and increased oxidative (cell) stress make salivary glands more likely to be damaged in Sjögren’s, using mouse models that mimic the disease.

    NIH research Oklahoma Medical Research Foundation · Oklahoma City, United States · NIH-11296942

  • Understanding Sjogren's Syndrome and Saliva Production

    This research explores how natural body chemicals and calcium affect saliva production and immune cells in people with Sjögren's syndrome.

    NIH research University of Texas Hlth Science Center · San Antonio, United States · NIH-11110346

  • Developing a new treatment for dry eye disease caused by Sjogren's syndrome

    This study is testing a new, easy-to-get treatment for dry eyes caused by Sjogren's syndrome, using special cells to create a healing extract that could help improve your symptoms and overall eye health.

    NIH research Stellular Bio, INC. · Watertown, United States · NIH-11067525

  • Improving saliva and tear production in Sjögren's syndrome

    This study is looking at how blocking certain receptors in the glands that produce saliva and tears might help people with Sjögren's syndrome, a condition that causes dry mouth and dry eyes, by improving their gland function and making them feel better.

    NIH research University of Missouri-Columbia · Columbia, United States · NIH-11041086

  • Investigating the role of LINE1 and IFI16 in Sjögren's syndrome

    This study is looking at how a specific part of our DNA interacts with the immune system in people with Sjögren's syndrome, which could help us understand the disease better and find new ways to treat it.

    NIH research Johns Hopkins University · Baltimore, United States · NIH-11036271

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.