Intranasal Dexmedetomidine for Acute Anxiety State in Adults

Summary

This study employs a randomized, double-blind, placebo-controlled clinical trial design to evaluate the efficacy and safety of dexmedetomidine hydrochloride nasal spray in the treatment of acute anxiety in adults.

Study Protocol: Patients meeting the criteria for acute anxiety who provided informed consent and met the inclusion and exclusion criteria were randomized in a 1:1 ratio to the placebo group or the study drug group and entered the double-blind study. Upon enrollment, baseline assessments were conducted to evaluate the number of accompanying symptoms, subjective anxiety severity (NRS), STAI-S-6, CGI-S, and RASS. Immediately following these assessments, patients received a nasal spray of 30 μg of dexmedetomidine or an equal-volume placebo; the time of administration was recorded as 0 minutes. At 15, 30, 45, 60, 90, and 120 minutes post-administration, the NRS for subjective anxiety severity, CGI-S, and CGI-I were assessed. The count of accompanying symptoms, STAI-S-6, and RASS were re-assessed only at 15, 30, and 120 minutes post-administration. In addition, vital signs (heart rate, oxygen saturation, and blood pressure) were assessed and recorded at baseline (prior to administration) and at 15, 30, 45, 60, 90, and 120 minutes post-administration. Venous blood samples were collected prior to administration and 90-120 minutes post-administration to measure biological markers. Adverse events were monitored during a 7-day follow-up period after treatment.

Conditions

• Acute Anxiety States

Interventions

DRUG

Dexmedetomidine

Patients meeting the criteria for acute anxiety who provided informed consent and met the inclusion and exclusion criteria were randomized in a 1:1 ratio to the placebo group or the study drug group and entered the double-blind study.

Sponsors & Collaborators

• Second Xiangya Hospital of Central South University

  collaborator OTHER

• Sir Run Run Shaw Hospital

  collaborator OTHER

• First Affiliated Hospital of Zhejiang University

  collaborator OTHER

• Huzhou Third People's Hospital

  collaborator OTHER

• NINGBO KANGNING HOSPITAL

  collaborator UNKNOWN

• Shanghai Pudong New Area Mental Health Center, School of Medicine, Tongji University

  collaborator OTHER

• Shanghai Putuo District People's Hospital

  collaborator UNKNOWN

• Tongji University

  lead OTHER

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

QUADRUPLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

65 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2026-04-30

Primary Completion

2026-12-31

Completion

2027-07-31

Countries

• China

Study Locations