postoperative analgesia
Conditions
Interventions
Sponsors
Eligibility
Inclusion criteria
Inclusion criteria: 1. Age 18-75 years old, no gender restriction (the ratio of male to female in the first stage is 1:1); 2. BMI 18-27 kg/m²; 3. Acute moderate pain: 24 hours after abdominal surgery, NRS score is >=4 and <=6 (measured within 30 minutes before administration); 4. No analgesic drugs were used within 48 hours before operation; 5. Voluntarily sign the informed consent form and understand and complete the NRS score; 6. Additional requirements for the second phase: Participants must not have participated in the first phase of this study.
Exclusion criteria
Exclusion criteria: 1. Allergy to opioids (especially ? agonists) or morphine; 2. History of central nervous system disease (epilepsy, depression, cognitive impairment); 3. Severe cardiovascular disease (myocardial infarction, heart failure in the past 3 months) or history of hypotension (basal systolic blood pressure <90 mmHg); 4. Severe renal insufficiency; 5. Participated in other clinical trials or had a history of drug abuse (alcoholism, drug abuse) in the past 1 month; 6. Pregnant women, nursing and other special groups; 7. Other circumstances deemed unsuitable for enrollment by the investigator (e.g., severe infections, malignancies).
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Safety and comfort;ED??/ED??; | — |
Secondary
| Measure | Time frame |
|---|---|
| Rapid-Onset Analgesia Score; | — |
Countries
China
Contacts
the Second Affiliated Hospital of Soochow University