Urea for Treatment of Hyponatremia in Patients With SIAD Unresponsive to Fluid Restriction

Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18+
SponsorUniversity of Turin, Italy

About this trial

Hyponatremia due to SIAD is frequently insufficiently corrected by fluid restriction alone, which remains the first-line therapy but is often poorly tolerated. Urea supplementation is recommended as second-line therapy.

This prospective study evaluates the effectiveness of oral urea supplementation in patients with chronic SIAD and persistent hyponatremia despite fluid restriction.

Eligibility criteria

Qualifiers

Plasma sodium concentration <135 mmol/L

Plasma osmolality <300 mOsm/kg

Urine osmolality >100 mOsm/kg

Urine sodium concentration >30 mmol/L

Disqualifiers

Chronic hypotonic hyponatremia secondary to another etiology

Presence of moderate to severe symptoms attributable to plasma hypotonicity

Severe hypotonic hyponatremia (serum sodium <120 mmol/L)

Another ongoing drug treatment for hyponatremia (including vaptans and salt tablets)

Trial design

Treatments tested in this trial

  • urea

Treatment groups

20 Participants
are divided into 1 treatment group

Sponsors and collaborators