Evaluating electrolyte balance in hyponatremia treatment

Evaluation of Volume and Electrolyte Balance in Hyponatremia Treatment - a Prospective Observational Trial (EvenT)

Observational University of Cologne · NCT05692726

This study is trying to see how different treatments for low sodium levels in the blood affect electrolyte balance and fluid changes in patients with hyponatremia.

Quick facts

Study typeObservational
Enrollment50 (estimated)
Ages18 Years and up
SexAll
SponsorUniversity of Cologne Academic / other
Locations1 site (Cologne)
Trial IDNCT05692726 on ClinicalTrials.gov

What this trial studies

This observational study aims to assess the evolution of electrolyte-free water clearance and electrolyte mass balance in patients with non-hypervolemic hypotonic hyponatremia. It will gather prospective data to correlate initial sodium levels with plasma sodium evolution and electrolyte-free water changes. The study will also analyze anthropometric data and physiological responses to treatment, focusing on mechanisms of osmotic homeostasis and cell volume control. By understanding these patterns, the study seeks to improve treatment strategies for hyponatremia.

Who should consider this trial

Good fit: Ideal candidates for this study are adult patients aged 18 and older with hypotonic hyponatremia and specific plasma sodium and osmolality levels.

Not a fit: Patients with signs of extracellular volume expansion, liver cirrhosis, heart failure, or those on dialysis may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management strategies for patients with hyponatremia, enhancing their treatment outcomes.

How similar studies have performed: While this study addresses a specific gap in understanding hyponatremia treatment, similar studies have shown varying degrees of success in managing electrolyte imbalances.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult patients ≥ 18 years
* Hypotonic hyponatremia

  * glucose-corrected plasma sodium \<130 mmol/l
  * serum osmolality \<280 mosmol/kg or lack of signs of non-hypotonic hyponatremia

Exclusion Criteria:

* Signs of extracellular volume expansion
* Patients with liver cirrhosis and severe liver damage AST/ALT\>3xULN, AP\>6xULN, Bilirubin ≥ 3mg/dl
* Patients with heart failure
* Patients on dialysis and/or patients with oliguric renal impairment and plasma creatinine ≥ 3mg/dl
* Patients after organ transplantation

Where this trial is running

Cologne

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 Non-hypervolemic HyponatremiaElectrolyte-free water clearancehyponatremia
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.