Essentiality of copper in humans.
R Uauy, M Olivares, M Gonzalez
https://pubmed.ncbi.nlm.nih.gov/9587135Actively Recruiting
Led by University of Washington · Updated on 2026-03-13
30
Participants Needed
1
Research Sites
N/A
Total Duration
U
University of Washington
Lead Sponsor
N
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Collaborating Sponsor
Chronic liver disease, especially cirrhosis, is a leading cause of death worldwide with limited medical treatments that can alter its progression. Malnutrition plays a significant role in worsening cirrhosis outcomes. Copper, an essential trace metal regulated mainly by the liver, has been found deficient in many liver disease patients and linked to severe disease, higher infection rates, and increased mortality. This research investigates whether copper supplementation can improve biochemical changes and patient outcomes in cirrhosis. Participants in this pilot randomized, placebo-controlled, crossover trial will receive oral copper gluconate 4 mg daily or placebo for a 6-week period, followed by a 3-week washout, then switch to the alternate treatment for another 6 weeks. Two groups alternate the order: one starts with copper then placebo, and the other starts with placebo then copper. The study evaluates copper's biochemical effects, safety, and patient-reported outcomes during these periods. Throughout the 15-week trial, participants will be monitored at baseline, after each 6-week intervention, and after the washout period. Researchers will measure plasma copper concentrations, biomarkers of copper status, safety indicators, nutritional and functional status, and patient-reported outcomes. This detailed monitoring will assess copper supplementation's impact on cirrhosis-related biochemical and clinical changes under careful safety observation.
CONDITIONS
Copper Supplementation in Cirrhosis
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Complete this quick 3-step screening to check your eligibility
Duration - 2 to 4 weeks
Participants are screened for eligibility to participate in the trial.
1 visit (in-person) for screening and enrollment
Duration - 15 weeks total including two 6-week intervention periods and a 3-week washout period
Participants receive oral copper gluconate 4 mg daily or placebo in a randomized crossover design, with a washout period between treatments.
Visits at randomization, end of first 6-week intervention, end of 3-week washout, and end of second 6-week intervention
Total: 1 location
1
University of Washington Medical Center
Seattle, Washington, United States, 98195
Actively Recruiting
L
Laura Sissons-Ross
Study Type
INTERVENTIONAL
Masking
QUADRUPLE
Allocation
RANDOMIZED
Model
CROSSOVER
Primary Purpose
TREATMENT
Number of Arms
2
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