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RecruitingNCT06785571Updated Jan 21, 2025

The Evaluation of the Effectiveness and Safety of Nalbuphine Hydrochloride Injection for Analgesia in ICU Patients: A Multicenter, Randomized, Single-blinded, Parallel, Two-step Trial

A Phase 2/3 interventional study of Nalbuphine hydrochloride injection and Hydromorphone hydrochloride injection in Respiratory Insufficiency, sponsored by Wuhan Union Hospital, China. Recruiting at 1 site in China. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2025-01-21.

Sponsored by Wuhan Union Hospital, China · Phase 2/3, Interventional, and Treatment

From the registry’s dates

  • Primary completion was expected by Oct 2025, 11 months ago, but the record still lists the study as recruiting.
  • Registered 1 year 4 months after the study started (first participant enrolled Aug 2023, registered Jan 2025).
  • Started Aug 2023; still recruiting 3 years 1 month later.
Phase
Phase 2/3
Study type
Interventional
Enrollment
204
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The analgesic effect of nalbuphine hydrochloride injection will be evaluated in a multicenter, randomized, single-blind, parallel, positive-controlled approach in two steps: step 1, to explore the optimal dosage of nalbuphine hydrochloride injection with 2 experimental arms and 1 positive control and step 2, to evaluate the effectiveness and safety of nalbuphine hydrochloride injection in mechanically ventilated ICU patients at a dosage determined in step 1 with the same positive control.

02

Conditions studied

  • Respiratory Insufficiency
03

In context

Respiratory Insufficiency

1,650 studies on the registry are indexed under Respiratory Insufficiency; 296 are open to participants now.

This study's planned enrollment of 204 is above the median of 55 across 1,043 interventional studies indexed under Respiratory Insufficiency.

Browse Respiratory Insufficiency studies →

Lead sponsor

Wuhan Union Hospital, China is the lead sponsor of 230 studies on the registry; 104 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  1. ICU patients who are intubated are expected to require mechanical ventilation for more than 6h
  2. patients or their guardians have a full understanding of the purpose and significance of this trial, and voluntarily participate in this clinical trial and sign an informed consent form

Exclusion criteria

Exclusion Criteria:

  1. Allergy or unsuitability to any composition of study drugs or propofol
  2. Living expectancy of less than 48 hours
  3. Neurological disorder and any other condition interfering with sedation assessment
  4. Gastrointestinal obstruction
  5. Asthmatic
  6. Abdominal compartment syndrome
  7. Serious hepatic dysfunction (CTP 10-15)
  8. Acute kidney injury (KDIGO stage 2 or 3) or Chronic kidney disease with glomerular filtration rate (GFR) \< 29 ml/min/1.73m2
  9. Circulatory instability (the need for a continuous infusion of norepinephrine at ≥0.5 ug/kg/min to maintain proper blood pressure)
  10. Need deep sedation or paralytics
  11. Anticipation to receive operations (including tracheotomy)
  12. Abuse of controlled substances or alcohol
  13. Pregnancy, lactation, or an intention of gestation in 6 months
  14. Inclusion in another interventional trial in the past 30 days
  15. Other conditions deemed unsuitable to be included
05

Study design

Phase
Phase 2 / Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
204 participants (estimated)

Study arms

  • Experimental
    lower loading dose of Nalbuphine hydrochloride for step 1

    Nalbuphine hydrochloride injection, a loading dose of 4 mg administered in 30 ±10 seconds, followed by a maintenance dose of 2.0mg/h (a recommended maintenance dose range of 1.0\~5.0mg/h)

    Drug: Nalbuphine hydrochloride injection

  • Experimental
    higher loading dose of Nalbuphine hydrochloride for step 1

    Nalbuphine hydrochloride injection, a loading dose of 6 mg administered in 30 ±10 seconds, followed by a maintenance dose of 2.0mg/h (a recommended maintenance dose range of 1.0\~5.0mg/h)

    Drug: Nalbuphine hydrochloride injection

  • Active comparator
    Hydromorphone hydrochloride injection for step 1

    Hydromorphone hydrochloride injection: a maintenance dose of 0.5mg/h (a recommended maintenance dose range of 0.5\~3.0mg/h)

    Drug: Hydromorphone hydrochloride injection

  • Experimental
    The optimal loading of Nalbuphine hydrochloride injection for step 2

    Nalbuphine hydrochloride injection: a loading dose determined after step 1 administered in 30 ±10 seconds, followed by a maintenance dose of 2.0mg/h (a recommended maintenance dose range of 1.0\~5.0mg/h)

    Drug: Nalbuphine hydrochloride injection

  • Active comparator
    Hydromorphone hydrochloride injection for step 2

    Hydromorphone hydrochloride injection: a maintenance dose of 0.5mg/h (a recommended maintenance dose range of 0.5\~3.0mg/h)

    Drug: Hydromorphone hydrochloride injection

Interventions

  • DrugNalbuphine hydrochloride injection

    a loading dose of Nalbuphine hydrochloride injection administered in 30 ±10 seconds, followed by a maintenance dose of 2.0mg/h (a recommended maintenance dose range of 1.0\~5.0mg/h)

  • DrugHydromorphone hydrochloride injection

    A maintenance dose of 0.5mg/h (a recommended maintenance dose range of 0.5\~3.0mg/h)

06

What researchers measure

Primary outcomes

  1. The analgesic success rate

    The analgesic success is determined as 1) no use of rescue analgesic medication and 2) at least 70% of the time with CPOT ≤ 2 points

    Time frame: Within 24 hours while receiving the study drug

Secondary outcomes

  1. The percentage of time with light sedation duration

    Light sedation duration is defined as subjects with CPOT ≤ 2 points and -2 points ≤ RASS ≤ 1

    Time frame: Within 24 hours while receiving the study drug

  2. The amout of propfol used

    The amout of propfol used

    Time frame: Within 24 hours while receiving the study drug

  3. Successful extubation

    Successful extubated without reintubation

    Time frame: Within 24 hours while receiving the study drug

Other outcomes

  1. Cmax

    peak plasma concentration

    Time frame: Within 24 hours while receiving the study drug

  2. The area under the plasma drug concentration-time curve

    The area under the plasma drug concentration-time curve (AUC)

    Time frame: Within 24 hours while receiving the study drug

  3. t1/2

    half-life

    Time frame: Within 24 hours while receiving the study drug

07

Study locations

1 of 1 sites recruiting
  • Wuhan Union Hospital
    Wuhan, Hubei 430022, China
    Recruiting
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 21, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06785571
Lead sponsor
Wuhan Union Hospital, China
Collaborators
Yichang Humanwell Pharmaceutical Co., Ltd., China
Responsible party
Sponsor
First posted
Jan 21, 2025
Start date
Aug 30, 2023
Primary completion
Oct 31, 2025 (estimated)
Completion
Oct 31, 2025 (estimated)
Last update
Jan 21, 2025

Study contacts

you shang
Contact
you_shanghust@163.com
02785351606

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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