Journal
CLINICAL CANCER RESEARCH
Volume 26, Issue 4, Pages 787-792Publisher
AMER ASSOC CANCER RESEARCH
DOI: 10.1158/1078-0432.CCR-19-2337
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Funding
- DUERTECC/EURONCO grant for 2018-2019
- Abbvie
- Amgen
- AstraZeneca
- Biogen
- Blueprint Medicines
- BMS
- Celgene
- Eli Lilly
- GSK
- Ignyta
- IPSEN
- Merck KGaA
- MSD
- Nektar
- Onxeo
- Pfizer
- Pharma Mar
- Sanofi
- Spectrum Pharmaceuticals
- Takeda
- Tiziana Pharma
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The generation of antibodies following exposure to therapeutic drugs has been widely studied, however in oncology, data in relation to their clinical relevance are limited. Antidrug antibodies (ADAs) can cause a decrease in the amount of drug available, resulting in some cases in decreased antitumor activity and a consequent impact on clinical outcomes. Several immunologic factors can influence the development ofADAs, and in addition, the sensitivity of the different testing methods used in different studies can vary, representing an additional potential confounding factor. The reported frequency of ADA-positive patients following treatment with immune checkpoint inhibitors varies from as low as 1.5% for pembrolizumab to 54% for atezolizumab. This latter drug is the only immune checkpoint inhibitor to have undergone an expanded analysis of the clinical implications of ADAs, but with discordant results. Given that immune checkpoint inhibitors can modify the immune response and potentially impact ADA formation, data from published as well as prospective trials need to be evaluated for a better understanding of the clinical implications of ADAs in this setting.
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