Phase 2 Chronic Kidney Disease Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
- You are male or female, aged between 18 and 80 years old.
- If you are a woman who could become pregnant, you agree to either avoid sex or use contraception throughout the study.
- You are able to understand the study and give written consent to take part after being fully informed about what it involves.
- You have been on haemodialysis (kidney dialysis) for at least 2 months and your treatment is stable.
- You attend haemodialysis three times per week.
- You have a permanent dialysis access point, such as a fistula, graft, or a long-term dialysis catheter.
- Your kidney failure was not caused by a condition called primary hyperoxaluria.
- Your blood oxalate level (a naturally occurring substance measured in your blood) is at or above a certain level (≥20 μmol/L).
- You have not had any major changes to your regular medicines or diet in the last 2 months.
Who may not be able to join:
- You have been diagnosed with a condition called primary hyperoxaluria (types 1, 2, or 3), or have a known gene change that causes it.
- You have been on haemodialysis for less than 2 months.
- You are on peritoneal dialysis (a different type of dialysis) instead of, or as well as, haemodialysis.
- Your dialysis access is temporary or not working well.
- You are pregnant, planning to become pregnant, or currently breastfeeding.
- You have a bowel or digestive condition such as Inflammatory Bowel Disease, short gut syndrome, or a condition that affects how your gut absorbs nutrients.
- You have severe liver failure.
- You currently have an active infection or are taking antibiotics.
- You are currently taking more than 250mg of Vitamin C per day.
- You have a terminal illness or are not expected to live for more than 1 year.
- You have a psychiatric (mental health) condition that is currently uncontrolled and would make it difficult to follow the study requirements.
- You are under an institutional order from a court or government.
- You may be in a situation where you could feel pressured into joining the study due to a relationship with those running it (confirm with trial site).
- Your liver function blood test results are significantly abnormal — specifically, certain liver enzyme levels are more than twice the normal upper limit (confirm with trial site).
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Felix Knauf, MD, Charite Universitätsmedizin
Phone: + 49 030 450 530067
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Pre-dialysis Plasma Oxalate concentration
Can't join this trial?
Data last synced from ClinicalTrials.gov: 13 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.