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Richard Pazdur
Published: Thursday, September 6, 2018 - 12:02 During the past decade, advances in understanding of cancer biology have led to the development of targeted treatments that are more effective than the chemotherapies of the past century. These therapies are demonstrating response rates large in magnitude or response durations prolonged in early trials, or both. Patient demand to enter these trials has increased, and so have calls to expedite the drug development and approval processes, all while maintaining high standards for safety and efficacy. The U.S. Food and Drug Administration (FDA) never loses sight of its dedication to patients faced with a life-threatening disease, and to making progress in the fight against cancer. The administration works with industry, researchers, and other stakeholders developing innovative cancer therapies to ensure clear understanding of the FDA’s latest thinking on how clinical trials can be efficiently and effectively designed to demonstrate a cancer therapy’s safety and efficacy. Last week, the FDA published a draft guidance to help advance effective and innovative clinical trial designs early in drug development to help bring new cancer therapies to patients as quickly as possible. Below is a quick summary of this guidance: Draft Guidance for Industry—“Use of expansion cohorts in first in-human clinical trials to expedite development of cancer drugs and biologics” The principal advantage of expansion cohort trials is efficiency in drug development, with the goal of making highly effective drugs widely available to the public as quickly as possible. Well-designed and well-conducted clinical trials help ensure patient safety while also obtaining quality data that may support drug approval. This new draft guidance describes the FDA’s proactive steps to help industry design clinical trials for today’s highly complex cancer therapies—and to conduct these trials in cost-effective and timely ways. From 1990 through 2014, the overall cancer death rate in the United States fell by 25 percent. In 2014, the number of people living beyond a cancer diagnosis reached 14.5 million, and by 2024 is expected to climb to approximately 19 million. In 2017, the FDA approved 16 new cancer drugs and biologics, including the first two in an exciting new category called CAR-T cell therapy. The FDA also approved 30 new indications (uses) for existing cancer drugs and biologics, and the first two biosimilars indicated to treat cancers. Additionally, it recently approved the first cancer treatment based on a genetic feature of a cancer rather than the location of the body where the tumor originated. The new draft guidance is intended to help the drug development community continue this progress against cancer. The FDA wants your input to make sure that the final guidance is comprehensive and forward looking and adapts to rapidly changing research developments and technologies. Our regulatory work needs to remain as advanced as the many new cancer therapies currently working their way through development. We encourage stakeholders to comment and look forward to your valuable feedback. Quality Digest does not charge readers for its content. We believe that industry news is important for you to do your job, and Quality Digest supports businesses of all types. However, someone has to pay for this content. And that’s where advertising comes in. Most people consider ads a nuisance, but they do serve a useful function besides allowing media companies to stay afloat. They keep you aware of new products and services relevant to your industry. All ads in Quality Digest apply directly to products and services that most of our readers need. You won’t see automobile or health supplement ads. So please consider turning off your ad blocker for our site. Thanks, Richard Pazdur, M.D., is the Director of the FDA Oncology Center of ExcellenceFDA Advances Efficient Approaches to Designing and Conducting Cancer Clinical Trials
Regulatory work must keep pace with emerging cancer therapies
Traditionally, clinical trials have been conducted in phases with one or two main objectives per study. For example, phase 1 studies help determine safety and the dose range for exploration in future trials, while phase 2 studies provide preliminary evidence of safety and activity in a single setting. This latest guidance, “Use of expansion Cohorts in first in-human clinical trials to expedite development of cancer drugs and biologics,” provides advice on designing and conducting adaptive trial designs in which pharmaceutical companies and researchers can assess many different aspects of a drug in development in a single clinical trial, while enrolling the minimum number of study participants necessary to obtain this information. Trials with multiple expansion cohorts can be inherently more efficient and expedite early drug development. They can allow for addressing multiple questions in a single trial that is amended as new objectives are identified, avoiding the time lag and additional resources experienced with the opening of new clinical trials.Maintaining progress
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Richard Pazdur
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