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Study identifier: NCT06974604 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Preventing Dato-DXd Associated Stomatitis With Dexamethasone Mouthwash, TROPION-DM

Condition: Breast Neoplasms · Lung Neoplasms  ·  Sponsor: Brown University

PhasePhase 2
Planned participants60
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

TROPION-DM/BrUOG-431 is a prospective, , phase 2 trial with two non-comparative cohorts analyzed jointly for primary endpoint in adult patients with either (Cohort 1:) advanced/metastatic hormone-receptor positive (\[HR+\], estrogen receptor and/or progesterone receptor positive) breast cancer (BC), or advanced/metastatic triple negative breast cancer (TNBC) or (Cohort 2:) advanced/metastatic non-squamous non-small cell lung cancer (NSCLC). All patients will be treated with Datopotumab deruxtecan (Dato-DXd) at 6 mg/kg IV every 3 weeks until disease progression or unacceptable toxicity. Due to the risk of stomatitis, the investigational component of this trial will be to incorporate alcohol-free dexamethasone mouthwash, 10 mL 0.5 mg/5mL oral solution, days 1-5, swish and spit four times daily for the first 3 cycles.

This description comes directly from the study's public registry record.

Talk to the study team

Brown University Oncology Research Group (BrUOG)  ·  401-863-3000  ·  BrUOG@brown.edu

Stephanie Graff, MD  ·  401-444-5388  ·  Sgraff1@brownhealth.org

Always discuss trial participation with your own doctor first.

Locations (1)

Rhode Island and the Miriam Hospitals (Brown University Health)Providence, Rhode Island, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT06974604