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Drug-based therapy for advanced adenoid cystic carcinoma: Current landscape and challenges based on an overview of
Vivian Petersen Wagner1, Renata Ferrarotto2, Pablo Agustin Vargas3
1Academic Unit of Oral and Maxillofacial Medicine and Pathology, Department of Clinical Dentistry, University of Sheffield, Sheffield, UK.
Abstract:
Adenoid cystic carcinoma (ACC) has a significant patient-population in need of effective systemic therapy, as no drug is currently approved by the FDA for its management. We critically reviewed ACC-clinical trials (CT) registered on the ClinicalTrials.gov website using "ACC" under condition or disease. Trials specifically designed to test a drug-based therapy for ACC (n = 33) were analyzed with most being one-arm phase II trials enrolling advanced, recurrent/metastatic, incurable ACC cases. Site restriction, maximum ECOG status, and period of disease progression varied as inclusion criteria. Small-molecule inhibitors were those most commonly investigated with Apatinib, Axitinib and Lenvatinib showing the best results in association with rigid enrollment criteria. The overall median time to progression remains modest and more efforts are urgently needed in this field. CTs designed to test drugs that act on key pathways associated with ACC aggressiveness are being conducted and represent a promising pathway if efficacy is proved.
Insights
No FDA-approved drugs exist for adenoid cystic carcinoma (ACC) systemic therapy. Clinical trials primarily focus on advanced ACC, with small-molecule inhibitors like Apatinib showing modest efficacy, necessitating further research.
Area of Science:
- Oncology
- Clinical Pharmacology
Background:
- Adenoid cystic carcinoma (ACC) lacks FDA-approved systemic therapies.
- A significant patient population requires effective treatment options.
Purpose of the Study:
- To review clinical trials for drug-based therapies in ACC.
- To identify promising agents and challenges in ACC treatment development.
Main Methods:
- Systematic review of ACC clinical trials registered on ClinicalTrials.gov.
- Analysis of 33 drug-based therapy trials, predominantly Phase II, single-arm studies.
- Evaluation of inclusion criteria and investigated drug classes.
Main Results:
- Small-molecule inhibitors were the most studied drug class.
- Apatinib, Axitinib, and Lenvatinib demonstrated notable efficacy under strict enrollment criteria.
- Median time to progression remains modest, indicating a need for improved therapies.
Conclusions:
- Current ACC clinical trials focus on advanced disease with limited success in improving progression times.
- Targeting key pathways in ACC aggressiveness shows promise, pending efficacy proof.
- Further research and development of novel systemic therapies are urgently required.
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