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NCT07357597PHASE4NOT_YET_RECRUITING

An Open-label, Single-arm Study of Prophylaxis for Datopotamab Deruxtecan (Dato-DXd) -Related Stomatitis in Eligible Patients With Metastatic or Inoperable Locally Recurrent Breast Cancer or Locally Advanced or Metastatic Epidermal Growth Factor Receptor-Mutated Non-small Cell Lung Cancer.

A Phase IV, Open-Label, Single-Arm Study of Prophylaxis for Datopotamab Deruxtecan-related Stomatitis in Eligible Patients With Metastatic or Inoperable Locally Recurrent Breast Cancer or Locally Advanced or Metastatic Epidermal Growth Factor Receptor-Mutated Non-Small Cell Lung Cancer (TROPION-SWISH)

Sponsor: AstraZeneca + Daiichi Sankyo

No open prediction endpoints

Endpoints are classified and published by ProgramSignal analysts.

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Key Facts

Study type
INTERVENTIONAL
Conditions
Stomatitis
Interventions
Dexamethasone mouthwash, Datopotamab Deruxtecan (Dato-DXd)
Enrollment
100 participants
Primary completion
Oct 2027
Study completion
Oct 2027
First posted
Jan 2026
Last updated
Jan 2026

Primary Endpoints (CT.gov)

Incidence and severity of Dato-DXd treatment-emergent grade ≥ 2 stomatitis in patients receiving prophylactic dexamethasone mouthwash within first 12 weeks of study treatment

Time frame: From date of first dose of study treatment until 12 weeks after date of first dose of study treatment

Secondary Endpoints

Incidence and severity of Dato-DXd treatment-emergent grade ≥ 2 stomatitis

Incidence and severity of treatment-emergent stomatitis overall, by maximum CTCAE grade, and CTCAE grade ≥ 2

Time to onset of grade ≥ 2 stomatitis

Eligibility Criteria

Inclusion Criteria: Patients are eligible to be included in the study only if all the following criteria apply: Disease Characteristics 1. Patients with any of the following disease characteristics are eligible (specific population subject to FDA Dato-DXd label): • Patients with unresectable or metastatic HR+/HER2- (IHC 0, IHC 1+, or IHC 2+/ISH-) breast cancer who have received prior ET and chemotherapy for unresectable or metastatic disease. OR • Adult patients with unresectable or metastatic TNBC who are not candidates for PD-1/PD-L1 inhibitor therapy. Participants will be enrolled upon FDA approval on use of Dato-DXd for this indication. OR • Patients with locally advanced or metastatic EGFRm NSCLC who have received prior EGFR-directed therapy and platinum-based chemotherapy. Age 2. Patient must be ≥ 18 years, at the time of signing the informed consent. Type of Patient and Disease Characteristics- 3. Has documentation that Dato-DXd will be prescribed

Read full criteria on CT.gov →

✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov