Using Metformin to Improve Kidney Health in FSGS

AMPK-activation by Metformin in FSGS: AMP-FSGS

Phase1; Phase2 Interventional Yale University · NCT06090227

This study is testing if taking extended-release Metformin along with regular treatment can help improve kidney health in people with Focal Segmental Glomerulosclerosis (FSGS).

Quick facts

PhasePhase1; Phase2
Study typeInterventional
Enrollment30 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorYale University Academic / other
Locations2 sites (New Haven, Connecticut and 1 other locations)
Trial IDNCT06090227 on ClinicalTrials.gov

What this trial studies

This study aims to evaluate the effectiveness of extended-release Metformin in conjunction with standard care compared to a placebo in patients with Focal Segmental Glomerulosclerosis (FSGS). The primary goal is to reduce podocyte injury and enhance podocyte survival over a six-month period. FSGS is a serious kidney disease characterized by significant protein loss and podocyte damage, leading to chronic kidney disease and end-stage kidney disease. By targeting the mechanisms that promote podocyte survival, this study seeks to potentially alter the disease's progression.

Who should consider this trial

Good fit: Ideal candidates for this study are adults aged 18 to 80 with biopsy-confirmed primary FSGS and a therapeutic plan involving glucocorticoids.

Not a fit: Patients with conditions other than primary FSGS or those who cannot comply with the study's medication regimen may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly improve kidney function and quality of life for patients with FSGS.

How similar studies have performed: While the use of Metformin in kidney diseases is being explored, this specific approach targeting podocyte survival in FSGS is novel and has not been extensively tested in prior studies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Provision of signed and dated informed consent form
2. Stated willingness to comply with all study procedures and availability for the duration of the study
3. Male or female, aged greater than or equal to 18 years, but \</= 80 years age at the time of signing the informed consent
4. Biopsy-confirmed primary FSGS as defined by expert renal pathology at either institutions. For homogeneity of diagnoses, demonstrable segmental or global sclerosis lesions (\>/=1 glomerulus) with diffuse podocyte foot process effacement by electron microscopy (\>/+ 50% of examined glomerular tufts), or show evidence of mesangial expansion or mesangial sclerosis, also confirmed by electron microscopy.
5. Therapeutic plan by treating physician for immunomodulatory treatment using Glucocorticoids.
6. Ability to take oral medication and be willing to adhere to the MF or Placebo regimen
7. For females of reproductive potential: use of highly effective contraception for at least 1 month prior to screening and agreement to use such a method during study participation and for an additional 12 weeks after the end of VPA administration. For males of reproductive potential: use of condoms or other methods to ensure effective contraception with partner.

Exclusion Criteria:

1. Liver disease: confirmed cirrhosis liver (any stage), acute hepatitis (\> 2 fold increase in liver enzymes, any coagulopathy, hyperbilirubinemia, ascites or encephalopathy)
2. estimated GFR \< 32 ml/min
3. Diabetes Mellitus diagnosis at the time of biopsy or need for oral hypoglycemic agents/Insulin, or taking Metformin for other indications
4. Treatment with another investigational drug or other intervention within 3 months
5. Current pregnancy or desire to become pregnant during the study period
6. Unwilling to use two forms of birth control (for women of childbearing age)
7. Under hospice care
8. Confirmed Dementia diagnoses in EMR problem list
9. Incarceration
10. Homelessness
11. Inability to consent
12. Currently enrolled in (or completed within the past 30 days) a study of an investigational drug or device.
13. Life expectancy of less than 6 months as determined by the clinical judgement of the patient's primary physician
14. Allergy or sensitivity to Metformin
15. Platelet count \< 100,000/µL; INR \> 1.5; Bleeding diathesis or blood thinner use contraindicating biopsy.
16. Bleeding diathesis or blood thinner use contraindicating biopsy will be excluded entirely from participation in research biopsy portion of study only, even if anticoagulation/blood thinners can be held temporarily.
17. Simultaneous use of Carbonic anhydrase inhibitor agents
18. Use of systemic immunosuppressive medication for non-renal indications

Where this trial is running

New Haven, Connecticut and 1 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Focal Segmental Glomerulosclerosis
Last reviewed 2026-06-15 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.