# A Study Evaluating the Efficacy and Safety of HSK21542 Injection for Analgesia in Subjects Undergoing Colonoscopy

> **NCT04470128** · PHASE2 · COMPLETED · sponsor: **Haisco Pharmaceutical Group Co., Ltd.** · enrollment: 180 (actual)

## Conditions studied

- Analgesia

## Interventions

- **DRUG:** Stage I: HSK21542 0.5 μg/kg
- **DRUG:** Stage I: HSK21542 1 μg/kg
- **DRUG:** HSK21542 0.5 μg/kg
- **DRUG:** HSK21542 1 μg/kg
- **DRUG:** HSK21542 2 μg/kg
- **DRUG:** Placebo

## Key facts

- **NCT ID:** NCT04470128
- **Lead sponsor:** Haisco Pharmaceutical Group Co., Ltd.
- **Sponsor class:** INDUSTRY
- **Phase:** PHASE2
- **Study type:** INTERVENTIONAL
- **Status:** COMPLETED
- **Start date:** 2020-08-19
- **Primary completion:** 2020-12-28
- **Final completion:** 2021-01-30
- **Target enrollment:** 180 (ACTUAL)
- **Last updated:** 2023-02-21


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT04470128

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT04470128, "A Study Evaluating the Efficacy and Safety of HSK21542 Injection for Analgesia in Subjects Undergoing Colonoscopy". Retrieved via AI Analytics 2026-06-24 from https://api.ai-analytics.org/clinical/NCT04470128. Licensed CC0.

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