Use of Tolvaptan to Reduce Urinary Supersaturation: a Pilot Proof of Principle Study

Overview

About this study

In this study the investigators propose to use a daily dose of 45 mg (30 mg at 8 AM and 15 mg at 4 PM). This relatively small well-tolerated dose is likely to persistently increase urine volume and reduce urine supersaturation and to be well tolerated by patients with kidney stone disease and normal renal function. The twice-daily (8 AM and 4 PM) regimen is designed to produce a maximal AVP inhibition on waking with a gradual fall-off of effect during the night. To this end, a higher dose is used in the morning, with a lower dose in the afternoon.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  • History of calcium oxalate or calcium phosphate stone.
  • Good renal function

Exclusion Criteria:

  • History of hypo-or hypernatremia.
  • History of hypotension or orthostatic dizziness.
  • Clinical history of congestive heart failure.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

John Lieske, M.D.

Closed for enrollment

More information

Publications

Publications are currently not available

Additional contact information

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