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CompletedNCT05326360Updated Apr 19, 2022

Ramosetron on Late PONV (Postoperative Nausea and Vomiting)

A Phase 4 interventional study of Ramosetron Hydrochloride in Postoperative Nausea and Vomiting and Breast Cancer Female, sponsored by Pusan National University Hospital. Completed at 1 site in Korea, Republic of. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-04-19.

Sponsored by Pusan National University Hospital · Phase 4, Interventional, and Prevention

From the registry’s dates

  • Registered 1 year 2 months after the study started (first participant enrolled Dec 2020, registered Mar 2022).
Phase
Phase 4
Study type
Interventional
Enrollment
144
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study was to evaluate the effectiveness of additional ramosetron injection for controlling late postoperative nausea and vomiting (PONV) after breast surgery in high risk PONV patients. The investigators compared PONV amomng 3 groups- group C: no additional ramosteron, group B: two additional ramosteron doses at 12 hour interval, group M: two additional ramosetron doses mix to the intraveonus patient controlled analgesia.

Read the detailed description

The investigators included high risk patients of PONV with a score of 3 or more as measured by the Apfel's score and over 18 years old who receive breast surgery and intravenous patient controlled analgesia. All patients was received ramosetron 0.3 mg at the end of surgery. The patients were evaluated for number of PONV (nausea, vomiting, retching) at 1, 6, 24, and 48 hours postoperatively. Nausea was defined as an unpleasant feeling of vomiting. Retching was defined as an excessive contraction or a regular movement. of the respiratory muscles where no gastric contents were excreted, and vomiting was defined as the excretion of gastric contents. PONV were further detailed quantified using the RINVR score (Rhodes Index of Nausea, Vomiting, and Retching) which enabled the patients' objective and subjective symptoms to be evaluated as a simple and reliable methods.

Intravenous injection of ondansetron 4 mg was administered as a rescue antiemetic. The patients were evaluated 2 hours after ondansetron administration. If the symptom persisted, use of second rescue antiemetics dexamethasone 5 mg.

02

Conditions studied

  • Postoperative Nausea and Vomiting
  • Breast Cancer Female

Keywords

  • mastectomy
  • postoperative nausea and vomiting
  • ramosetron
03

In context

Nausea

822 studies on the registry are indexed under Nausea; 104 are open to participants now.

This study's enrollment of 144 is above the median of 115 across 703 interventional studies indexed under Nausea.

Browse Nausea studies →

Lead sponsor

Pusan National University Hospital is the lead sponsor of 78 studies on the registry; 8 are open to participants now.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • age over 18 years
  • American Society of Anesthesiologists (ASA) physical status I or II
  • requesting IV PCA (patient control of analgesia) for pain control
  • the high-risk group of PONV with a score of 3 or more as measured by the Apfel's score.

Exclusion criteria

Exclusion Criteria:

  • emergency operation
  • re-operation
  • drug abuse, allergy
  • major organ disease (gastrointestinal, cardiovascular, respiratory, cerebral, renal or hepatic disease)
  • smoker
  • pregnancy
  • lactation
  • previously use of antiemetics or systemic steroids within 48 before surgery
05

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Outcomes assessor)
Enrollment
144 participants (actual)

Study arms

  • No intervention
    group C

    receive ramosetron i.v. 0.3mg at the end of surgery without additional ramosetron

  • Experimental
    group B

    receive ramosetron i.v. 0.3mg at the end of surgery with two additional doses of ramosetron at 12- and 24- hour postoperative time points

    Drug: Ramosetron Hydrochloride

  • Experimental
    group M

    receive ramosetron i.v. 0.3mg at the end of surgery followed ramosetron 0.6 mg mix with the patient-controlled analgesia (PCA) regimen

    Drug: Ramosetron Hydrochloride

Interventions

  • DrugRamosetron Hydrochloride

    we injected two additional remosetron doses in different way in experimental groups. In group B, patients received additional ramosetron at 12 hour interval, in group M, patients received additional ramosetron in mixed with the patient controlled analgesia regimen.

06

What researchers measure

Primary outcomes

  1. number of PONV

    number of nausea, vomiting, retching

    Time frame: 24hour postoperatively

Secondary outcomes

  1. number of PONV

    number of nausea, vomiting, retching

    Time frame: 1hour, 6hour, 48 hour postoperatively

  2. Rhodes Index of Nausea, Vomiting, and Retching (RINVR) score

    further detaied quantified in PONV experience, total score: 32, none:0, mild: 1-8 point, moderate: 9-16 point, great: 17-24 point, severe: 25-32 point

    Time frame: 1hour, 6hour, 24hour, 48 hour postoperatively

07

Study locations

1 site
  • Pusan National University Hopsital
    Busan, 49241, Korea, Republic of
08

References and documents

Individual participant data

Plan to share: Undecided

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 Apr 19, 2022, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05326360
Lead sponsor
Pusan National University Hospital
Responsible party
Eunsoo Kim (Associate professor, Pusan National University Hospital) — Principal investigator
First posted
Apr 13, 2022
Start date
Dec 17, 2020
Primary completion
Oct 31, 2021
Completion
Oct 31, 2021
Last update
Apr 19, 2022

Oversight

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

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This study is completed, as verified in Apr 2022. You cannot join it, but the record below documents what was studied.

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