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Primary polydipsia

MONDO:0040870

A form of polydipsia characterized by excessive fluid intake in the absence of physiological stimuli to drink.

3 clinical trials for this condition and its sub-types.

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Sub-types

Dipsogenic diabetes insipidus (0) Non-psychogenic polydipsia (0) Psychogenic polydipsia (0)

Broader categories

Disease (680) Psychiatric disorder (435) Impulse control disorder (19) Human disease (14) Disease by developmental or physiological process (0)

Trials to join now! 2 Completed 1

Sugar alcohol infusion may help diagnose thirst disorders

Diagnosis Completed

This study tested whether infusing mannitol, a sugar alcohol, can help diagnose polyuria-polydipsia syndrome—a condition of excessive thirst and urination. Researchers measured copeptin levels in 42 healthy adults and patients after mannitol or placebo infusion. The goal was to s…

Phase: NA • Sponsor: University Hospital, Basel, Switzerland • Aim: Diagnosis

Last updated Jun 27, 2026 08:04 UTC