Bariatric Surgery CandidatePhase 3PONVNCT05087615
Effects of Ondansetron, Metoclopramide and Granisetron on Perioperative Nausea and Vomiting in Patients Undergone Bariatric Surgery
A Phase 3 study testing Metoclopramide, Ondansetron and Metoclopramide and Ondanteron in people with Bariatric Surgery Candidate and Perioperative Complication, run by Shahid Beheshti University of Medical Sciences at 1 site in Iran.
Trial summary
Post-operative nausea and vomiting (PONV) is one of the leading causes of patient morbidity after laparoscopic bariatric surgeries. A wide variety of complications related to PONV has been described, such as prolonged length of stay (LOS) in hospital, unnecessary readmissions, delay in oral intake, and bad experience… Read more about this study
- Who is it for?
- Ages 13 to 75 yearsHealthy volunteers can take part
- Conditions the study is for
- Bariatric Surgery Candidate, Perioperative Complication, Nausea
- What is being tested?
- Metoclopramide, Ondansetron and Metoclopramide and Ondanteron
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 130 participants
- Where
- 1 siteIran
- Study dates
- 1 Mar 2021to 6 Sep 2021
- 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 13 to 75 years
- All sexes
- Healthy volunteers accepted
- Child, Adult, Older adult
Who may be able to join
- BMI>40
- Only bariatric operations
- mild or moderate surgical risk
- without any previous gastrointestinal problems
- no previous gastrointestinal surgery
Who cannot join
- Moderate or severe gastritis or duodenitis
- GERD
- lack of H. Pylori eradication
- concurrent cholecystectomy
- Dissatisfaction during study
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Effects of Ondansetron, Metoclopramide and Granisetron on Perioperative Nausea and Vomiting in Patients Undergone Bariatric Surgery: a Randomized Clinical Trial
Post-operative nausea and vomiting (PONV) is one of the leading causes of patient morbidity after laparoscopic bariatric surgeries. A wide variety of complications related to PONV has been described, such as prolonged length of stay (LOS) in hospital, unnecessary readmissions, delay in oral intake, and bad experience for patients. Although several antiemetic regimens have been tried so far in different studies, the incidence of PONV is not significantly lowered, and it seems that it is impossible to totally eliminate it. On the other hand, the implementation of Enhanced Recovery After Surgery (ERAS) has greatly reduced the incidence of PONV and LOS. Therefore, a combination of ERAS and multiple antiemetic regimens is currently used to reduce the incidence of PONV. Nevertheless, the optimal regimen has not been found yet, and many trials are conducting to find out the best antiemetic regimen. In this randomized clinical trial, we compare four different combined and single regimens alongside the implementation of ERAS to show which regimen is more effective.
Read the detailed description
After being approved by Iran National Committee for Ethics in Biomedical Research (IR.SBMU.MSP.REC.1399.784), a randomized clinical controlled trial was started with 130 patients in five groups. All the patients were proper candidates for laparoscopic bariatric surgeries, and structured informed consent was obtained from all participants.
All the operations were performed by board certified advanced laparoscopic surgeons in a minimally invasive educational center. All bariatric surgery was performed in our standardized institutional protocols as well as preoperative and postoperative care. Sleeve Gastrectomy (SG) surgeries were performed by using 44Fr Tubes.
To calculate the sample size in the clinical trial, we used the ANCOVA method with web-based tools. Twenty-six patients were estimated for each group. Patients were divided into five groups:
Group 1: Patients who did not receive any antiemetic during hospitalization (NA).
Group 2: Patients receiving metoclopramide alone (MA). Group 3: Patients who received ondansetron only. (OA) Group 4: Patients receiving a combination of metoclopramide and ondansetron (MO).
Group 5: Patients who received granisetron alone (GA). All patients were undergone ERAS protocols. In cases where the patient had PONV (including Group 1), intravenous Metoclopramide 0.2mg (Stat and BiD) was used as a rescue antiemetic.
To reduce the incidence of bias and confounding factors, all anesthetics and antiemetics used were provided from the same brand for each drug (see Appendix).
Patients with severe or moderate gastritis or duodenitis on esophagogastroduodenoscopy were excluded from the study, but patients with mild gastritis or positive rapid urease test on endoscopy, were treated for two weeks with three drugs of pentazole, amoxicillin, and metronidazole, and if the respiratory urease test was negative, they were included in the study and in refractory cases of H. Pylori, they were excluded. According to the American Society of Anesthesiologists (ASA) classification, patients with severe respiratory or cardiovascular problems (ASA III or higher) or a history of gastric or small bowel surgery were also excluded. Patients who underwent simultaneous cholecystectomy with bariatric surgery were also excluded.
- Conditions
- Bariatric Surgery Candidate, Perioperative Complication, Nausea, Vomiting, Postoperative, Drug Effect
- Being tested
- Metoclopramide, Ondansetron, Metoclopramide and Ondanteron, Granisetron
- Keywords
- Bariatric Surgery, Post-operative nausea or vomiting, Sleeve Gastrectomy, Ondansetron, Metoclopramide, Granisetron
- Medical subject headings
- Nausea, Postoperative Nausea and Vomiting, Vomiting
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
MetoclopramideDrug
Also called Plasil
This groups only received metoclopramide 0.2 mg/kg IV Bid as antiemetic in the postoperative period.
OndansetronDrug
This groups only received ondansetron 8 mg IV Bid as antiemetic in the postoperative period.
Metoclopramide and OndanteronDrug
This groups received both metoclopramide 0.2 mg IV Bid and ondansetron 8 mg IV/Bid as antiemetics in the postoperative period.
GranisetronDrug
This groups only received granisetron 2 mg IV Bid as antiemetic in the postoperative period.
| Study group | Role | What they receive |
|---|---|---|
| Control | No intervention | Patients who did not receive any antiemetic during hospitalization (NA). |
| MA | Experimental | Patients receiving metoclopramide alone (MA). Receives: Drug: Metoclopramide |
| OA | Experimental | Patients who received ondansetron only (OA). Receives: Drug: Ondansetron |
| MO | Experimental | Patients receiving a combination of metoclopramide and ondansetron (MO). Receives: Drug: Metoclopramide and Ondanteron |
| GA | Experimental | Patients who received granisetron alone (GA). Receives: Drug: Granisetron |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change PONV
reduction in the incidence of postoperative nausea/vomiting
Measured: PONV has been measured in day one, and two of admission
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Oct 2021
- Study start1 Mar 2021
- Primary completion21 Aug 2021
- Study completion6 Sep 2021
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (4)Papers the sponsor has linked to this study.
- Other trials for Bariatric Surgery CandidateStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- the patients were divided into five parallel groups including control and study groups. Group 1: Patients who did not receive any antiemetic during hospitalization (NA). Group 2: Patients receiving metoclopramide alone (MA). Group 3: Patients who received ondansetron only. (OA) Group 4: Patients receiving a combination of metoclopramide and ondansetron (MO). Group 5: Patients who received granisetron alone (GA).
- Masking
- Triple blind
- Who is masked
- Participant, Care provider, Investigator
- Enrolment
- 130 participants (actual)
Sponsor and investigators
- Lead sponsor
- Shahid Beheshti University of Medical Sciences
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Manoochehr Ebrahimian, Shahid Beheshti University of Medical Sciences
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05087615
- Sponsor's protocol ID
- ManoochehrEbrahimian
- Acronym
- PONV
- Status last verified
- Oct 2021
- First submitted
- 8 Oct 2021
- Last updated
- 29 Oct 2021
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: All the data and analytic works will be available for interested persons.
Publications
Naeem Z, Chen IL, Pryor AD, Docimo S, Gan TJ, Spaniolas K. Antiemetic Prophylaxis and Anesthetic Approaches to Reduce Postoperative Nausea and Vomiting in Bariatric Surgery Patients: a Systematic Review. Obes Surg. 2020 Aug;30(8):3188-3200. doi: 10.1007/s11695-020-04683-1.
PubMed 32415635Therneau IW, Martin EE, Sprung J, Kellogg TA, Schroeder DR, Weingarten TN. The Role of Aprepitant in Prevention of Postoperative Nausea and Vomiting After Bariatric Surgery. Obes Surg. 2018 Jan;28(1):37-43. doi: 10.1007/s11695-017-2797-0.
PubMed 28674839Fathy M, Abdel-Razik MA, Elshobaky A, Emile SH, El-Rahmawy G, Farid A, Elbanna HG. Impact of Pyloric Injection of Magnesium Sulfate-Lidocaine Mixture on Postoperative Nausea and Vomiting After Laparoscopic Sleeve Gastrectomy: a Randomized-Controlled Trial. Obes Surg. 2019 May;29(5):1614-1623. doi: 10.1007/s11695-019-03762-2.
PubMed 30734195Moussa AA, Oregan PJ. Prevention of postoperative nausea and vomiting in patients undergoing laparoscopic bariatric surgery--granisetron alone vs granisetron combined with dexamethasone/droperidol. Middle East J Anaesthesiol. 2007 Jun;19(2):357-67.
PubMed 17684876
Study at a glance
From the registry record, last updated by the sponsor on 29 Oct 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Effects of Ondansetron, Metoclopramide and Granisetron on Perioperative Nausea and Vomiting in Patients Undergone Bariatric Surgery: a Randomized Clinical Trial
- ClinicalTrials.gov ID
- NCT05087615
- Acronym / sponsor ID
- PONV / ManoochehrEbrahimian
- Conditions
- Bariatric Surgery Candidate, Perioperative Complication, Nausea, Vomiting, Postoperative, Drug Effect
- Keywords
- Bariatric Surgery, Post-operative nausea or vomiting, Sleeve Gastrectomy, Ondansetron, Metoclopramide, Granisetron
- Phase
- Phase 3
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 130 participants (actual)
- Lead sponsor
- Shahid Beheshti University of Medical SciencesUniversity, hospital or other
- Study start
- 1 Mar 2021 (actual)
- Primary completion
- 21 Aug 2021 (actual)
- Study completion
- 6 Sep 2021 (actual)
- First posted
- 21 Oct 2021 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Post-operative nausea and vomiting (PONV) is one of the leading causes of patient morbidity after laparoscopic bariatric surgeries. A wide variety of complications related to PONV has been described, such as prolonged length of stay (LOS) in hospital, unnecessary readmissions, delay in oral intake, and bad experience for patients. Although several antiemetic regimens have been tried so far in different studies, the incidence of PONV is not significantly lowered, and it seems that it is impossible to totally eliminate it. On the other hand, the implementation of Enhanced Recovery After Surgery (ERAS) has greatly reduced the incidence of PONV and LOS. Therefore, a combination of ERAS and multiple antiemetic regimens is currently used to reduce the incidence of PONV. Nevertheless, the optimal regimen has not been found yet, and many trials are conducting to find out the best antiemetic regimen. In this randomized clinical trial, we compare four different combined and single regimens alongside the implementation of ERAS to show which regimen is more effective.
Detailed description
After being approved by Iran National Committee for Ethics in Biomedical Research (IR.SBMU.MSP.REC.1399.784), a randomized clinical controlled trial was started with 130 patients in five groups. All the patients were proper candidates for laparoscopic bariatric surgeries, and structured informed consent was obtained from all participants.
All the operations were performed by board certified advanced laparoscopic surgeons in a minimally invasive educational center. All bariatric surgery was performed in our standardized institutional protocols as well as preoperative and postoperative care. Sleeve Gastrectomy (SG) surgeries were performed by using 44Fr Tubes.
To calculate the sample size in the clinical trial, we used the ANCOVA method with web-based tools. Twenty-six patients were estimated for each group. Patients were divided into five groups:
Group 1: Patients who did not receive any antiemetic during hospitalization (NA).
Group 2: Patients receiving metoclopramide alone (MA). Group 3: Patients who received ondansetron only. (OA) Group 4: Patients receiving a combination of metoclopramide and ondansetron (MO).
Group 5: Patients who received granisetron alone (GA). All patients were undergone ERAS protocols. In cases where the patient had PONV (including Group 1), intravenous Metoclopramide 0.2mg (Stat and BiD) was used as a rescue antiemetic.
To reduce the incidence of bias and confounding factors, all anesthetics and antiemetics used were provided from the same brand for each drug (see Appendix).
Patients with severe or moderate gastritis or duodenitis on esophagogastroduodenoscopy were excluded from the study, but patients with mild gastritis or positive rapid urease test on endoscopy, were treated for two weeks with three drugs of pentazole, amoxicillin, and metronidazole, and if the respiratory urease test was negative, they were included in the study and in refractory cases of H. Pylori, they were excluded. According to the American Society of Anesthesiologists (ASA) classification, patients with severe respiratory or cardiovascular problems (ASA III or higher) or a history of gastric or small bowel surgery were also excluded. Patients who underwent simultaneous cholecystectomy with bariatric surgery were also excluded.
Study design
- Primary purpose
- Prevention
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Triple blind (participant, care provider, investigator)
- Number of arms
- 5
- Model description
- the patients were divided into five parallel groups including control and study groups. Group 1: Patients who did not receive any antiemetic during hospitalization (NA). Group 2: Patients receiving metoclopramide alone (MA). Group 3: Patients who received ondansetron only. (OA) Group 4: Patients receiving a combination of metoclopramide and ondansetron (MO). Group 5: Patients who received granisetron alone (GA).
| Arm | Type | Receives |
|---|---|---|
| Control | No intervention | –Patients who did not receive any antiemetic during hospitalization (NA). |
| MA | Experimental | Drug: MetoclopramidePatients receiving metoclopramide alone (MA). |
| OA | Experimental | Drug: OndansetronPatients who received ondansetron only (OA). |
| MO | Experimental | Drug: Metoclopramide and OndanteronPatients receiving a combination of metoclopramide and ondansetron (MO). |
| GA | Experimental | Drug: GranisetronPatients who received granisetron alone (GA). |
Who may qualify
- Ages
- 13 to 75 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (5 listed)
- BMI>40
- Only bariatric operations
- mild or moderate surgical risk
- without any previous gastrointestinal problems
- no previous gastrointestinal surgery
Key exclusion criteria (5 listed)
- Moderate or severe gastritis or duodenitis
- GERD
- lack of H. Pylori eradication
- concurrent cholecystectomy
- Dissatisfaction during study
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| MetoclopramideAlso: PlasilThis groups only received metoclopramide 0.2 mg/kg IV Bid as antiemetic in the postoperative period. | Drug | MA |
| OndansetronThis groups only received ondansetron 8 mg IV Bid as antiemetic in the postoperative period. | Drug | OA |
| Metoclopramide and OndanteronThis groups received both metoclopramide 0.2 mg IV Bid and ondansetron 8 mg IV/Bid as antiemetics in the postoperative period. | Drug | MO |
| GranisetronThis groups only received granisetron 2 mg IV Bid as antiemetic in the postoperative period. | Drug | GA |
Primary outcome
Change PONV
Time frame: PONV has been measured in day one, and two of admission
reduction in the incidence of postoperative nausea/vomiting
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Oct 2021.
- Background: PubMed 32415635Naeem Z, Chen IL, Pryor AD, Docimo S, Gan TJ, Spaniolas K. Antiemetic Prophylaxis and Anesthetic Approaches to Reduce Postoperative Nausea and Vomiting in Bariatric Surgery Patients: a Systematic Review. Obes Surg. 2020 Aug;30(8):3188-3200. doi: 10.1007/s11695-020-04683-1.
- Background: PubMed 28674839Therneau IW, Martin EE, Sprung J, Kellogg TA, Schroeder DR, Weingarten TN. The Role of Aprepitant in Prevention of Postoperative Nausea and Vomiting After Bariatric Surgery. Obes Surg. 2018 Jan;28(1):37-43. doi: 10.1007/s11695-017-2797-0.
- Background: PubMed 30734195Fathy M, Abdel-Razik MA, Elshobaky A, Emile SH, El-Rahmawy G, Farid A, Elbanna HG. Impact of Pyloric Injection of Magnesium Sulfate-Lidocaine Mixture on Postoperative Nausea and Vomiting After Laparoscopic Sleeve Gastrectomy: a Randomized-Controlled Trial. Obes Surg. 2019 May;29(5):1614-1623. doi: 10.1007/s11695-019-03762-2.
- Background: PubMed 17684876Moussa AA, Oregan PJ. Prevention of postoperative nausea and vomiting in patients undergoing laparoscopic bariatric surgery--granisetron alone vs granisetron combined with dexamethasone/droperidol. Middle East J Anaesthesiol. 2007 Jun;19(2):357-67.
- Individual participant dataSharing planned: Yes. All the data and analytic works will be available for interested persons.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 3 study testing Metoclopramide, Ondansetron and Metoclopramide and Ondanteron in people with Bariatric Surgery Candidate and Perioperative Complication, run by Shahid Beheshti University of Medical Sciences at 1 site in Iran.
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 5 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 29 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Iran. Whether a site is taking part right now should be confirmed with that site. See every site.
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?
Change PONV (time frame: PONV has been measured in day one, and two of admission). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT05087615, which also lists 4 linked publications.
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 29 Oct 2021; AzTrials last refreshed its copy on 8 Nov 2026.