NCT03627780

Brief Summary

Nausea and vomiting affects 25-30% of individuals in the post-operative period and can reach more than 70-80% in high-risk patients. inherited factors may play a significant role in individual susceptibility and clinical research on hereditary factors involved in the pathogenesis of Postoperative nausea and vomiting (PONV) and chemotherapy nausea and vomiting (CINV) is relatively new. The aim of this study is to investigate whether inter-individual differences related to PONV are associated with genetic factors. 300 patients will be evaluated in postoperative oncological surgeries. The peripheral leukocyte DNA will be extracted by the Salting Out Procedure method and processed to genotyping for 48 SNPs from 15 candidate genes by real-time PCR by the Taqman method. The possible associations with demographic data and factors related to surgery will be analyzed by univariate and multivariate analysis.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
300

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2017

Typical duration for all trials

Geographic Reach
1 country

2 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 2, 2017

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

August 9, 2018

Completed
4 days until next milestone

First Posted

Study publicly available on registry

August 13, 2018

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 1, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 1, 2020

Completed
Last Updated

May 19, 2021

Status Verified

May 1, 2021

Enrollment Period

3.2 years

First QC Date

August 9, 2018

Last Update Submit

May 17, 2021

Conditions

Outcome Measures

Primary Outcomes (1)

  • PONV (Post operative nausea and vomiting)

    Incidence of early (6 hours) and late (24 h) nausea and vomiting

    24 hours

Secondary Outcomes (1)

  • Intensity of Acute Postoperative pain

    24 hours

Study Arms (2)

PONV

Patients presenting with postoperative nausea and vomiting

Diagnostic Test: DNA extraction

no PONV

Patients not presenting with postoperative nausea and vomiting

Diagnostic Test: DNA extraction

Interventions

DNA extractionDIAGNOSTIC_TEST

DNA will be extracted from white cells

PONVno PONV

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

300 Patients submitted to cancer surgery, classified as high- and intermediate-risk for PONV according to Apfel Score, 150 cases and 150 controls.

You may qualify if:

  • High and intermediate-risk patients for PONV (Apfel score 2, 3 and 4)

You may not qualify if:

  • Low risk patients for PONV (Apfel score 0 and 1)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Cancer Institute of the State of Sao Paulo - ICESP

São Paulo, São Paulo, 01403010, Brazil

Location

Cancer Institute of the State of Sao Paulo

São Paulo, São Paulo, 01403010, Brazil

Location

Related Publications (3)

  • Hayase T, Sugino S, Moriya H, Yamakage M. TACR1 gene polymorphism and sex differences in postoperative nausea and vomiting. Anaesthesia. 2015 Oct;70(10):1148-59. doi: 10.1111/anae.13082. Epub 2015 May 27.

  • Wesmiller SW, Bender CM, Sereika SM, Ahrendt G, Bonaventura M, Bovbjerg DH, Conley Y. Association between serotonin transport polymorphisms and postdischarge nausea and vomiting in women following breast cancer surgery. Oncol Nurs Forum. 2014 Mar 1;41(2):195-202. doi: 10.1188/14.ONF.195-202.

  • Grigio TR, Furuya TK, Slullitel A, Murillo Carrasco AG, Uno M, Alves MJF, Carmona MJC, Sugino S, Chammas R, Sousa AM. Clinical, ethnic and genetic risk factors associated with postoperative nausea and vomiting in patients undergoing cancer surgery: a case-control study. Am J Transl Res. 2025 Apr 15;17(4):3235-3246. doi: 10.62347/DGRM3907. eCollection 2025.

Biospecimen

Retention: SAMPLES WITH DNA

Whole blood

MeSH Terms

Conditions

Genetic Predisposition to DiseasePostoperative Nausea and Vomiting

Condition Hierarchy (Ancestors)

Disease SusceptibilityDisease AttributesPathologic ProcessesPathological Conditions, Signs and SymptomsPostoperative ComplicationsNauseaSigns and Symptoms, DigestiveSigns and SymptomsVomiting

Study Officials

  • Angela M Sousa, phd

    Instituto do Cancer do Estado de São Paulo

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 9, 2018

First Posted

August 13, 2018

Study Start

January 2, 2017

Primary Completion

March 1, 2020

Study Completion

March 1, 2020

Last Updated

May 19, 2021

Record last verified: 2021-05

Locations