Skip to content

SMASH (Steroid Mouthwash for the Prevention of Oral Mucositis in Breast Cancer Chemotherapy) trial

Efficacy and safety of a dexamethasone-based mouthwash to prevent chemotherapy-induced stomatitis in women with breast cancer: a multicenter, open-label, randomized phase III study

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCTs071240036
Enrollment
230
Registered
2024-07-22
Start date
2024-07-22
Completion date
Unknown
Last updated
2025-07-18

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

Conditions

breast cancer breast cancer, stomatitis

Interventions

Study arm: mouthwash with steroid mouthwash Control arm: mouthwash with water

Sponsors

Kuba Sayaka
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Patients diagnosed with invasive breast cancer by needle biopsy or surgery 2) Patients who are scheduled to receive AC or EC/AC or EC + pembrolizumab/dose dense AC or dose-dense EC/TC therapy 3) Patients who can complete the patient diary and questionnaire in the ePRO 4) Persons with a PS of 0-1 5) Persons aged between 18 and 80 years at the time consent is obtained. 6) Persons who have given written consent to participate in the study.

Exclusion criteria

Exclusion criteria: (1) Persons with breast cancer metastasis or recurrence (2) Persons with oral mucositis before treatment (3) Persons with oral wounds caused by dentures (4) Women with pregnant or lactating (5) Persons deemed inappropriate for inclusion in the study by the principal investigator.

Design outcomes

Primary

MeasureTime frame
the incidence of all-grade stomatitis using electric patient-reported outcomes (ePRO)

Secondary

MeasureTime frame
Percentage of patients with moderate or severe oral mucositis assessed by ePRO, duration of oral mucositis assessed by ePRO, percentage of patients with total and grade 2 or higher oral mucositisassessed by physician, QoL, percentage of patients who discontinued, postponed or reduced chemotherapy during the study participation period, mouthwash adherence, and oral infection, other adverse events of grade 3 or higher, and related items of health economic evaluation.

Contacts

Public ContactSayaka Kuba

Nagasaki University Hospital

skuba@nagasaki-u.ac.jp+81-95-819-7316

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Feb 4, 2026