MedTrace Logo

Intranasal Insulin for Postoperative Delirium in Older Patients With T2DM

NCT07720479 · Status: NOT_YET_RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 210

Last updated 2026-07-22

No results posted yet for this study

Summary

Postoperative delirium (POD) is highly prevalent in older patients with type 2 diabetes mellitus (T2DM). Cerebral insulin resistance is considered a key pathophysiological mechanism underlying this association. This study aims to investigate whether intranasal insulin (INI) can prevent POD and early postoperative cognitive decline by improving cerebral insulin resistance. We will conduct a randomized, double-blind, placebo-controlled multicenter trial. Older T2DM patients will be randomly assigned to receive intranasal insulin at doses of 40 IU or 80 IU, or placebo. The primary objective is to evaluate the efficacy of INI in preventing POD and to determine the dose-response relationship.

Conditions

  • Postoperative Delirium (POD)

Interventions

DRUG

Insulin, human

Subjects will receive intranasal insulin treatment. The specific dosage will vary by study arm: Group 1 receives 40 IU daily (20 IU twice daily), Group 2 receives 80 IU daily (40 IU twice daily), and the control group receives intranasal placebo. Administration occurs 15 minutes prior to anesthesia induction and continues daily from postoperative day 1 through postoperative day 7.Intranasal insulin

DRUG

Intranasal Normal Saline (Placebo)

0.9% sodium chloride solution for intranasal administration, matched in volume and appearance to the insulin preparation. Administered via the same nasal spray device twice daily (equivalent volume to the 80 IU insulin arm) beginning 15 min before anesthesia induction and continuing postoperatively until POD 7.

Sponsors & Collaborators

  • Weidong Mi

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-07-01
Primary Completion
2028-02-01
Completion
2028-02-01

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07720479 on ClinicalTrials.gov