Tokyo, Oct. 23 -- UMIN Clinical Trials Registry (UMIN-CTR) received information related to the study (UMIN000059464) titled 'A single-arm phase II study evaluating the preventive effect of dental intervention on oral mucositis during the initiation of datopotamab deruxtecan in patients with advanced breast cancer' on Oct. 23.

Study Type: Interventional

Study Design: Basic Design - Single arm Randomization - Non-randomized Blinding - Open -no one is blinded Control - Historical

Primary Sponsor: Institute - Japan Institute for Health Security

Condition: Condition - Breast cancer Classification by malignancy - Malignancy Genomic information - NO

Objective: Narrative objectives1 - To evaluate whether dental intervention can prevent the occurrence of oral mucositis induced by datopotamab deruxtecan(Dato-DXd). Basic objectives2 - Efficacy

Intervention: Interventions/Control_1 - The following dental interventions will be performed: evaluation of the oral environment, dental calculus removal, professional mechanical tooth cleaning (PMTC), toothbrushing instruction, tongue coating removal instruction, and gargling instruction.

Eligibility: Age-lower limit - 18 years-old <= Age-upper limit - Not applicable Gender - Male and Female Key inclusion criteria - Patients diagnosed with breast cancer eligible for Dato-DXd under Japanese insurance coverage and scheduled to receive Dato-DXd treatment. Key exclusion criteria - 1. Patients with an Eastern Cooperative Oncology Group (ECOG) performance status of 3 or higher at the time of consent. 2. Patients who have oral mucositis at the time of consent. 3. Patients who are scheduled to undergo dental procedures involving polishing, puncture, incision, or local anesthesia at the time of consent. 4. Patients who wish to receive dental care at another institution. Target Size - 35

Recruitment Status: Recruitment status - Enrolling by invitation Date of protocol fixation - 2025 Year 07 Month 17 Day Date of IRB - 2025 Year 10 Month 14 Day Anticipated trial start date - 2025 Year 10 Month 24 Day Last follow-up date - 2029 Year 03 Month 31 Day

To know more, visit https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068012

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