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Postoperative Nausea and VomitingPhase 3NCT02830906

Effect of Ramosetron in Prevention of Intrathecal Morphine Induced Nausea and Vomiting

A Phase 3 study testing ramosetron and Ondansetron in people with Postoperative Nausea and Vomiting, run by Thammasat University.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

We would like to know the prophylactic anti-emetic effect of ramosetron compare to ondansetron in patient undergone total knee arthroplasty with spinal anesthesia and intrathecal morphine . Read more about this study

Who is it for?
Ages 50 to 80 yearsHealthy volunteers can take part
Conditions the study is for
Postoperative Nausea and Vomiting
What is being tested?
ramosetron and Ondansetron
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
99 participants
Where
No sites listed yet
Study dates
Apr 2014to Mar 2015
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 to 80 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Patients aged 50-80 years with a diagnosis of primary OA undergoing unilateral TKA
  • American Society of Anesthesiologist (ASA) physical status I-III
  • Giving written informed consent

Who cannot join

  • Body mass index (BMI) > 35 kg/m2
  • Unable to undergo spinal anesthesia
  • History of allergic to study drugs
  • Impaired renal and/or hepatic function
  • Use of systemic steroids and anti-emetics within 24 hours of operation

About this study

Official title: Comparison of Ramosetron With Ondansetron for Prevention of Intrathecal Morphine Induced Nausea and Vomiting After Primary Total Knee Arthroplasty: A Randomized Control Trial

We would like to know the prophylactic anti-emetic effect of ramosetron compare to ondansetron in patient undergone total knee arthroplasty with spinal anesthesia and intrathecal morphine .

Read the detailed description

The patients were allocated into 2 groups by computerized block randomization according to a computer generated randomization. Treatment allocations were contained in sealed envelopes that were opened after patient enrollment. Patients received either 8 mg of intravenous (IV) ondansetron or 0.3 mg of IV ramosetron 10 minutes before spinal anesthesia and intrathecal morphine. All of the unilateral TKAs were done by one orthopedic surgeon using the same minimally invasive surgical technique and the same prosthesis.

Patients were monitored for incidence of Post Operative Nausea Vomiting(PONV) every 6 hours until 24 hours, and 24-48 hours postoperatively. Common adverse drug reactions associated with serotonin receptor antagonists (pruritus, dizziness, and headache) were also recorded.

The sample size calculation was based on the ability to detect a difference in incidence of postoperative nausea in between the two groups of 40% i.e. 50% in the ondansetron arm, and 30% in the ramosetron arm, consistent with a previous study. Using a power of 80% (β=0.2) and a two sided significance level(alpha) of 0.05, 45 patients in each group were required.

Being tested
ramosetron, Ondansetron
Keywords
Total Knee Arthroplasty, Intrathecal Morphine, Ramosetron, Ondansetron, postoperative nausea and vomiting
Medical subject headings
Postoperative Nausea and Vomiting

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ramosetronDrug

    Also called ramosetorn

    intravenous ramosetron 0.3 mg before spinal anesthesia and intrathecal morphine

  • OndansetronDrug

    intravenous ondansetron 8 mg before spinal anesthesia and intrathecal morphine

Study groups in NCT02830906
Study groupRoleWhat they receive
ramosetron groupExperimentalPatients received 0.3 mg of intravenous ramosetron before spinal anesthesia and intrathecal morphine
Receives: Drug: ramosetron
ondansetron groupActive comparatorPatients received 8 mg of intravenous ondansetron before spinal anesthesia and intrathecal morphine
Receives: Drug: Ondansetron

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Incidence rate of postoperative nausea and vomiting

    Measured: 48 hours after the operation

Secondary outcomes (2)
  1. number of patients require for anti-emetic medicine

    Measured: 48 hours after the operation

  2. visual analog scale for pain

    Measured: 48 hours after operation

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Jul 2016 (estimated)
  2. Study startApr 2014
  3. Primary completionFeb 2015
  4. Study completionMar 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
99 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02830906
Sponsor's protocol ID
MTC-EC-OT-2-169/56
Status last verified
Jul 2016
First submitted
6 Jul 2016
Last updated
13 Jul 2016
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing ramosetron and Ondansetron in people with Postoperative Nausea and Vomiting, run by Thammasat University.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Jul 2016. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Incidence rate of postoperative nausea and vomiting (time frame: 48 hours after the operation). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Jul 2016.

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