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Effects of Intranasal Oxytocin on Sexual Well-Being in Patients With Arginine Vasopressin Deficiency and Healthy Controls

RECRUITINGPhase 2Sponsored by University Hospital, Basel, Switzerland
Actively Recruiting
PhasePhase 2
SponsorUniversity Hospital, Basel, Switzerland
Started2025-07-01
Est. completion2026-12
Eligibility
Age18 Years+
Healthy vol.Accepted

Summary

The study aims to investigate whether intranasal oxytocin (OXT) improves sexual well-being in patients with Arginine Vasopressin Deficiency (AVP-D). The trial consists of two parts: Part A assesses the effect of OXT on sexual well-being and intimacy over a 7-day treatment period in participants in a stable partnership. Part B assesses the effect of a single dose OXT on sexual arousal, fear and empathy in a clinical setting and is designed for single participants and those in partnerships.

Eligibility

Age: 18 Years+Healthy volunteers accepted
Inclusion Criteria for healthy controls:

* Adult healthy volunteers aged 18 years and above
* Matched for age, sex, BMI, and menopause/hormonal contraceptives to patients
* No medication, except hormonal contraception
* At least mild impairment in sexual function and satisfaction, defined as an ASEX-score ≥10 points and an NSSS-S score ≤ 48 points
* Only Part A: Participants must be sexually active (at least once a week sexual intercourse) and in a current partnership for at least 6 months

Inclusion criteria for patients:

* Adult patients aged 18 years and above, with a confirmed diagnosis of AVP deficiency based on established criteria
* Stable hormone replacement therapy for at least three months with desmopressin and, in case of additional anterior pituitary deficiencies, with the respective substitution therapies
* At least mild impairment in sexual function and satisfaction, defined as an ASEX-score ≥10 points and an NSSS-S score ≤ 48 points
* Only Part A: Participants must be sexually active (at least once a week sexual intercourse) and in a current partnership for at least 6 months

Exclusion Criteria:

* Pregnancy and breastfeeding within the last eight weeks
* Participation in a trial with investigational drugs within 30 days
* Active substance use disorder within the last six months
* Consumption of alcoholic beverages \>15 drinks/week
* Current or previous psychotic disorder (e.g., schizophrenia)

Conditions4

Arginine Vasopressin DeficiencyCentral Diabetes InsipidusDiabetesOxytocin Deficiency

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