Acceptable Hemodynamic Changes in Dexmedetomidine for Single Intravenous Bolus Injection
Determination of ED50 and ED95 of Single Bolus Dexmedetomidine in General Anesthesia Patients to Produce Acceptable Hemodynamic Outcomes
1 other identifier
interventional
42
1 country
1
Brief Summary
Dexmedetomidine(DEX)is a potent and highly selective α 2 adrenergic receptor agonist. It has the pharmacological effects of sedation, hypnosis, analgesia, anti-sympathetic and neuroprotective. Its sedative effect is similar to normal sleep, and easy to wake up. DEX is widely used clinically because of its advantages and acceptable side effects. The best clinical use of DEX is uncertain, including intravenous, intramuscular, oral, intralnasal and sublingual administration. Its clinical recommended use is intravenous load infusion for more than 10 minutes, followed by continuous infusion. However, the clinical recommended usage is inconvenient, time-consuming and other shortcomings, for the growing popularity of daytime surgery, will inevitably affect the operation process and turnover. If a suitable dose range of DEX can be found for a single intravenous injection to achieve clinical efficacy quickly without significant hemodynamic effects, this will improve the patient's postoperative recovery. We will speed up the utilization and turnover of medical resources. The aim of this study was to investigate the optimal dosage of DEX for single intravenous injection.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_4
Started May 2018
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 23, 2018
CompletedFirst Submitted
Initial submission to the registry
July 2, 2018
CompletedFirst Posted
Study publicly available on registry
August 31, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
March 23, 2020
CompletedStudy Completion
Last participant's last visit for all outcomes
April 23, 2020
CompletedSeptember 25, 2019
September 1, 2019
1.8 years
July 2, 2018
September 23, 2019
Conditions
Outcome Measures
Primary Outcomes (1)
Heart rate(HR)
HR changes per minutes in 10 minutes after single injection of DEX
10min
Secondary Outcomes (4)
Duration of operation
intraoperative, from the beginning of the cut to the end of the seam
Anaesthesia time
intraoperative, from initiation of anesthesia induction to cessation of anesthetic use
Recovery time of anesthesia
within 24 hours
Mean arterial pressure(MAP)
10min
Study Arms (1)
Dexmedetomidine
EXPERIMENTALDrug: Dexmedetomidine dexmedetomidine, 0.1ug/kg up or down Other Name: precedex
Interventions
Dexmedetomidine was injected intravenously 30 minutes before the end of operation. Single bolus is for more than 1 minute. In the first case, the dosage of dexmedetomidine was 0.1 ug/kg. If the cardiovascular reaction was positive (mean arterial pressure or heart rate was more than 20% before intravenous injection), the dosage of Dexmedetomidine in the next patient decreased by a gradient (0.05ug/kg). If the cardiovascular response was negative, the next patient increased the dose of dexmedetomidine by a gradient (0.1ug/kg); if a patient withdrew from the study, the next patient received the same dose as the patient who withdrew.
Eligibility Criteria
You may qualify if:
- volunteer to participate in the study and sign the informed consent;
- selective operation of thyroid gland whose anesthesia time is less than 2 hours ;
- aged 18-55 years;
- ASA I - II;
- BMI 18\~28kg/m2.
You may not qualify if:
- Mallampati grade Ⅲ or Ⅳ;
- opening degree \< 2.5 cm;
- taking analgesic or sedative drugs for a long time before operation;
- a history of arrhythmia, bronchial and cardiovascular diseases, abnormal liver function and so on;
- allergic to dexmedetomidine, similar active ingredients or excipients;
- G-6-PD deficiency;
- a history of use of alpha 2 receptor agonists or antagonists.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
The second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
Wenzhou, Zhejiang, 325027, China
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Jun Li
The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NA
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
July 2, 2018
First Posted
August 31, 2018
Study Start
May 23, 2018
Primary Completion
March 23, 2020
Study Completion
April 23, 2020
Last Updated
September 25, 2019
Record last verified: 2019-09
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
- Time Frame
- Data will be available within 6 months of study complettion.
- Access Criteria
- Data access request will be reviewed by an external independent review panel.Requestors will be required to sign a Data access agreement.
De-identified individual participant data for all primary and secondary outcome measures will be available.