About this trial
This prospective, multicenter clinical study aims to evaluate the efficacy and safety of neoadjuvant therapy with MRG003 (Becotatug vedotin) combined with epirubicin in patients with EGFR-positive, unresectable recurrent sinonasal adenoid cystic carcinoma (SNACC). The primary question is whether this combination can achieve a sufficient objective response rate (ORR) to enable subsequent radical surgery or improve disease control.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
None
Disqualifiers
None
Trial design
Single group
Treatments tested in this trial
Becotatug Vedotin
DrugBecotatug vedotin (also known as MRG003) is an antibody-drug conjugate (ADC) targeting epidermal growth factor receptor (EGFR). It consists of a recombinant anti-EGFR humanized monoclonal antibody conjugated to the microtubule-disrupting agent monomethyl auristatin E (MMAE) via a valine-citrulline linker. It is administered intravenously at 2.0 mg/kg on day 1 of each 21-day cycle for 3 cycles. Epirubicin is an anthracycline chemotherapeutic agent that inhibits topoisomerase II, thereby interfering with DNA replication and transcription. It is administered intravenously at 75 mg/m² on day 1 of each 21-day cycle for 3 cycles.
Treatment groups
Trial outcomes
Primary outcomes
Objective Response Rate (ORR)
Proportion of participants achieving complete response (CR) or partial response (PR) as assessed by the investigator according to RECIST v1.1 criteria.
Secondary outcomes
Safety and tolerability
Incidence, severity, and relationship of adverse events (AEs) and serious adverse events (SAEs) graded according to CTCAE v5.0.
Surgical conversion rate
Proportion of participants who undergo radical surgery (R0 or R1 resection) after neoadjuvant therapy, as assessed by multidisciplinary team (MDT).
Disease control rate (DCR)
Proportion of participants achieving complete response (CR), partial response (PR), or stable disease (SD) according to RECIST v1.1.
R0 resection rate
Among participants who undergo surgery, proportion with negative microscopic margins (R0) on final histopathology.
Sponsors and contacts
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