Stopping oxalate buildup in primary hyperoxaluria

Hydroxyproline Dehydrogenase Inhibitors for the Treatment of Primary Hyperoxaluria

NIH-funded research Wake Forest University Health Sciences · NIH-11171366

This research explores a new medicine to help patients with specific types of primary hyperoxaluria (PH2 and PH3) by reducing a substance that causes kidney stones.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionWake Forest University Health Sciences NIH-funded
Lab location1 site (Winston-Salem, United States)
Project IDNIH-11171366 on NIH RePORTER

What this research studies

Hydroxyproline, a component found in collagen within our bodies and in the meat we eat, can be broken down into oxalate, which contributes to the formation of kidney stones. For patients with primary hyperoxaluria (PH), this conversion is a significant source of oxalate. This project aims to find a drug that blocks an enzyme called hydroxyproline dehydrogenase (HYPDH), which is the first step in this oxalate-producing pathway. By stopping HYPDH, we hope to significantly lower oxalate levels, especially for PH2 and PH3 patients who currently have no specific treatments. Early findings suggest that blocking HYPDH is safe and effective in animal models, offering a promising new approach.

Who could benefit from this research

Good fit: This research is specifically focused on developing treatments for patients diagnosed with Primary Hyperoxaluria types 2 and 3 (PH2 and PH3).

Not a fit: Patients with other forms of hyperoxaluria or kidney stone conditions not related to hydroxyproline metabolism may not directly benefit from this specific approach.

Why it matters

Potential benefit: If successful, this approach could offer the first specific therapy for PH2 and PH3 patients, potentially preventing severe kidney damage and improving their quality of life.

How similar studies have performed: Early studies in animal models have shown promising results, indicating that blocking this pathway can reduce oxalate production without harmful side effects.

Where this research is happening

Winston-Salem, 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.
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.