1. Linking It Up: Antibody-Drug Conjugates

    Posted on 08.01.19 Steve Kennedy, on Articles, Biotech/Pharma, Patent Trends & Activity

    As discussed in our previous article, antibody-drug conjugates (ADCs) have emerged as a highly promising class of anti-cancer drugs, and significant technical innovations are being made in all three components of the ADC, i.e. the antibody, the drug payload, and the linker joining them. The linker has been an area of particular focus, both within pharmaceutical development and the patent space. The primary considerations for effective ADC linkers are their stability during circulation followed by release at the target site and their method of attachment to the antibody. The latter can determine the ratio of payload to antibody, formulation homogeneity, and ease of manufacture, and will be the focus of the current article.

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  2. Antibody Drug Conjugates: The Patent Landscape for a New Class of Cancer Treatment

    Posted on 07.08.18 Steve Kennedy, on Articles, Biotech/Pharma

    Over the last decade, antibody-drug conjugates (ADCs) have emerged as a highly promising new class of biopharmaceuticals. By taking advantage of the specificity of monoclonal antibodies and the potency of small-molecule chemotherapy drugs, ADCs have proven to provide a highly effective combination – particularly in the oncology space,. The recent FDA approvals of Kadcyla (Genentech), Adcetris (Seattle Genetics), Mylotarg (Wyeth Holdings / Pfizer), and Besponsa (Wyeth Holdings / Pfizer), as well as the over sixty other ADCs in clinical trials, show that these drugs represent an increasing proportion of newly approved cancer therapies and will generate growing revenues for firms innovating in the field.  Accompanying this burst in ADC development is the corresponding activity in the patent space.  This article summarizes some of the important developments.

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