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Personalized Antiemetic Regimen According to Patients' Pharmacogenetic Profile

Randomized Phase II Study of Personalized Antiemetic Regimen Based on Pharmacogenetic Profile for the Prevention of Chemotherapy-Induced Nausea and Vomiting in Chinese Breast Cancer Patients.

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07455955
Enrollment
200
Registered
2026-03-06
Start date
2026-03-31
Completion date
2028-07-03
Last updated
2026-04-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Breast Cancer

Brief summary

The objectives of this study are to determine if pharmacogenetic (PG) analysis of an individual enable optimal selection of antiemetic regimen for patients undergoing the first cycle of AC (Adriamycin + Cyclophosphamide) or FEC (Fluorouracil + Epirubicin + Cyclophosphamide) chemotherapy. It also aims to compare the quality of life of patients in the first cycle of AC / FEC chemotherapy with and without PG analysis. Patients will be randomized to undergo PG analysis \[PG group\] versus no PG analysis \[Non-/+PG group\]. Those in the PG group would be offered currently available optimal antiemetic prophylaxis, with or without Olanzapine according to PG outcomes. Those in the Non-PG group would be offered currently available optimal antiemetic prophylaxis.

Interventions

DRUGStandard antiemetic regimen or Olanzapine antiemetic regimen

Standard antiemetic regimen: * Day 1: Aprepitant 125mg QD (once daily); Ondansetron 8mg BD (twice daily); Dexamethasone 12mg QD (Aprepitant, Ondansetron and Dexamethasone to be take 60 minutes before chemotherapy on Day 1) * Days 2 to 3: Aprepitant 80mg QD Olanzapine antiemetic regimen: * Day 1: Aprepitant 125mg QD; Ondansetron 8mg BD; Dexamethasone 12 mg QD; Olanzapine 10mg QD (Aprepitant, Ondansetron and Dexamethasone to be take 60 minutes before chemotherapy on Day 1); Olanzapine 10mg nocte * Days 2 to 3: Aprepitant 80mg QD; Olanzapine 10mg nocte * Days 4-5: Olanzapine 10mg nocte

DRUGStandard antiemetic regimen

* Day 1: Aprepitant 125mg QD; Ondansetron 8mg BD; Dexamethasone 12mg QD (Aprepitant, Ondansetron and Dexamethasone to be take 60 minutes before chemotherapy on Day 1) * Days 2 to 3: Aprepitant 80mg QD

Sponsors

Chinese University of Hong Kong
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
FEMALE
Age
18 Years to 74 Years
Healthy volunteers
No

Inclusion criteria

* Chinese patient, female \>/=18 and \< 75 years of age. * Patient is diagnosed with early breast cancer. * Patient is naïve to emetogenic chemotherapy moderately or highly emetogenicity. * Patient is scheduled to receive her first course of neoadjuvant/adjuvant chemotherapy for breast cancer follows: AC: Intravenous (IV) Adriamycin 60 mg/m\^2 + Cyclophosphamide 600 mg/m\^2, given as 14-day cycle or 21-day cycle, or FEC: IV Fluorouracil 500 mg/m\^2 + Epirubicin 50 mg/m\^2 + Cyclophosphamide 500 mg/m\^2, given as 21-day cycle * Patient has a predicted life expectancy of 4 months. * Patient has ECOG (Eastern Cooperative Oncology Group) Performance Status of 0-1. * Premenopausal female patients must not be pregnant (documented negative urine pregnancy test). * Patient is able to read, understand and complete study questionnaires and diary, including questions requiring a visual analog scale (VAS) response. * Patient understands the procedures and agrees to participate in the study by giving written informed consent.

Exclusion criteria

* Patient with advanced breast cancer. * Patient receiving cisplatin or any other chemotherapy of higher emetogenic potential, except for cyclophosphamide and doxorubicin in the regimens described above. * Patients who are scheduled to receive concurrent radiation as part of their chemotherapy regimen for their malignancy * Patients who experience any vomiting or grade 2-3 nausea per Common Terminology Criteria for Adverse Events version 4.0 (CTCAE v 4.03) in the 24 hours before Day 1 of chemotherapy * Patient has a history of treatment with moderately to highly emetogenic chemotherapy. * Patient has an active infection (e.g., pneumonia, systemic fungal infection) or any uncontrolled disease (e.g., diabetes mellitus, hypertension) which, in the opinion of the investigator, might confound the results of the study or pose unwarranted risk. * Patient with history of glaucoma, dementia, seizures, Parkinson's disease, Neuroleptic Malignant Syndrome (NMS), thromboembolic events. * Patient currently uses any illicit drugs, including marijuana, or has current evidence of alcohol abuse as determined by the investigator. * Patient is mentally incapacitated or has a significant emotional or psychiatric disorder that, in the opinion of the investigator, precludes study entry. * Patients who are regular alcohol drinker or smoker * Patient has a history of any illness that, in the opinion of the investigator, might confound the results of the study or pose unwarranted risk. * Patient has a history of hypersensitivity to aprepitant, ondansetron or dexamethasone. * Patients who have phenylketonuria and abnormal uric acid. * Any investigational drugs taken within 4 weeks prior to Day 1 of cycle 1, and/or is scheduled to receive any investigational drug during the study.

Design outcomes

Primary

MeasureTime frameDescription
Complete Protection (CP)2 yearsCP was defined as no vomiting, no use of rescue therapy and 'no significant nausea' (NSN) during the study periods. NSN is defined as a nausea VAS of \<25 mm.

Secondary

MeasureTime frameDescription
No Nausea (NN)2 yearsNN is defined as a nausea VAS of \<5 mm.

Countries

Hong Kong

Contacts

CONTACTWinnie YEO, MBBS, MD, FRCP
winnie@clo.cuhk.edu.hk3505 1042
CONTACTDong LAI, RN
dong@clo.cuhk.edu.hk3505 1138

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 2, 2026