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A Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel, Phase IIa Clinical Trial to Evaluate the Efficacy and Safety of HRS4800 Tablets for the Treatment of Postoperative Pain of Impacted Teeth

A Multicenter, Randomized, Double-blind, Placebo-controlled, Parallel, Phase IIa Clinical Trial to Evaluate the Efficacy and Safety of HRS4800 Tablets for the Treatment of Postoperative Pain of Impacted Teeth

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2200055811
Enrollment
Unknown
Registered
2022-01-20
Start date
2022-01-20
Completion date
Unknown
Last updated
2023-06-26

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

Conditions

Postoperative analgesia of impacted tooth extraction

Interventions

Experimental group:HRS4800/4 pills
The placebo group:HRS4800 tablets of simulator /4 tablets

Sponsors

West China Stomatological Hospital, Sichuan University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18 to 65 years, no gender limitation; 2. Two or more third molars (at least one impacted mandibular tooth) should be removed during the operation; 3. NRS score >= 5 at any time within 4 hours after surgery; 4. Able to correctly understand research procedures and methods and abide by research regulations; 5. Voluntarily sign informed consent to participate in this study.

Exclusion criteria

Exclusion criteria: 1.The use of other drugs that affect the analgesic effect is shorter than 5 half-lives of the drug before randomization (according to the actual drug instructions, drugs with unknown half-lives shall be eluted within 7 days), including but not limited to: Bureau hemp drugs (except under plans), nonsteroidal anti-inflammatory drugs (NSAIDs), opioid excited/antagonists, sedative hypnotic drugs (such as diazepam, phenobarbital, etc.), monoamine oxidase inhibitors, tricyclic antidepressants, selective serotonin reuptake inhibitors (SSRIs) (e.g., paroxetine, dorothy dean, fluoxetine, etc.), serotonin, and Norepinephrine reuptake inhibitors (SNRIs) (minacillin, duloxetine, venlafaxine, etc.), methylphenidate hydrochloride (Ritalin), other antipsychotic drugs, etc.; 2.Using sodium channel blockers within 5 half-lives of the drug before randomization (will be subject to the actual instruction, the half-life of the unknown drugs according to the elution 7 days), including but not limited to: anti-arrhythmic drugs (such as quinine butyl, propafenone, etc.), and antiepileptic drugs (carbamazepine, phenytoin sodium, lamotrigine, etc.), tetrodotoxin, etc; 3.Complications such as infection at the site of oral surgery; 4.Hypertension during the screening period is defined as systolic blood pressure >= 140mmHg and/or diastolic blood pressure >= 100mmHg (retest can be carried out if hypertension is detected for the first time, and the mean value of three consecutive measurements reaches systolic blood pressure >= 140mmHg and/or diastolic blood pressure >= 100mmHg shall be excluded, and the interval between two adjacent measurements shall be at least 5min); 5.Hypotension during screening period, defined as systolic blood pressure = 450ms, female >= 470ms) or other clinically significant ecg abnormalities (such as sinus bradycardia (= 120bpm), sick sinus syndrome, grade II type II or III ATrioventricular block without pacemaker installation, etc.); 10.There are obvious abnormal laboratory tests during screening period: (1)Hemoglobin (Hb) = 1.5xULN (upper limit of normal value); (3)Serum aspartate aminotransferase (AST) >= 1.5xULN; (4)Serum total bilirubin (TBIL) >= 1.5xULN; (5)Serum creatinine (Cr) >= 1.5xULN; (6)Random blood glucose (GLU) >= 11.1mmol/L; (7)PT>ULN+ 3S and/or APTT>ULN + 10 s; (8)Positive for human immunodeficiency virus antibody (HIV-AB), hepatitis B surface antigen (HBsAg), hepatitis C antibody (HCV-AB), syphilis antibody; 11.Known allergy or intolerance to non-steroidal anti-inflammatory drugs (NSAIDs) or lidocaine or whole milk; 12.Pregnant women (including women

Design outcomes

Primary

MeasureTime frame
SPID8h;

Countries

China

Contacts

Public ContactShi Bing

West China Stomatological Hospital, Sichuan University

shibingcn@vip.sina.com+86 13666170278

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026