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Tolvaptan for the Prevention of Delayed Hyponatremia after Surgery in Patients with Pituitary Macroadenoma: A Multicenter, Single-Blind, Randomized Controlled Clinical Trial

Tolvaptan for the Prevention of Delayed Hyponatremia after Surgery in Patients with Pituitary Macroadenoma: A Multicenter, Single-Blind, Randomized Controlled Clinical Trial

Status
Active, not recruiting
Phases
Phase 4
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2600118902
Enrollment
Unknown
Registered
2026-02-12
Start date
2026-03-17
Completion date
Unknown
Last updated
2026-05-25

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Delayed hyponatremia after pituitary tumor surgery

Interventions

tolvaptan group:Orally administered tolvaptan
placebo group:oral placebo

Sponsors

Second Affiliated Hospital of Army Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1. Age 18–70 years; 2. Sexr No restriction; 3. Tumor diameter >=1 cm; 4. First-time endoscopic transsphenoidal surgery (eTSS); 5. Pathologically confirmed pituitary adenoma (all subtypes); 6. Normal serum sodium level on postoperative day 4; 7. Written informed consent obtained.

Exclusion criteria

Exclusion criteria: 1. ACTH-secreting adenoma; 2. Adrenal insufficiency (morning 8:00 cortisol level 3×ULN, or total bilirubin >2×ULN); 6. Renal insufficiency (eGFR <30 mL/min); 7. Current diuretic use; 8. Pregnancy/lactation; 9. Tolvaptan hypersensitivity; 10. Autosomal dominant polycystic kidney disease (ADPKD); 11. Diabetes mellitus; 12.Patients requiring emergent surgical intervention; 13. Non-compliant patients or those unable to cooperate with study procedures; 14. Intracranial infection

Design outcomes

Primary

MeasureTime frame
Incidence of hyponatremia on postoperative day 7;

Secondary

MeasureTime frame
Incidence of pituitary-adrenal insufficiency and pituitary-hypothyroidism on the 7th postoperative day;Incidence of adverse drug reactions (ADRs);

Countries

China

Contacts

Public ContactSong Li

Second Affiliated Hospital of Army Medical University

dlisong3@163.com+86 136 3782 7171

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: May 30, 2026