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Eighty years of oral anticoagulation: Learning from history
Maria Rosa Montinari1, Sergio Minelli2, Raffaele De Caterina3
1Chair of History of Medicine, Department of Biological and Environmental Science and Technology, University of Salento, Lecce, Italy.
Abstract:
In the year 2021 we celebrate the 80th anniversary of the first clinical use of vitamin K antagonists (VKAs), the mainstay of prevention and long-term treatment of thromboembolic disease. The discovery and development of oral anticoagulants is one of the most important chapters in the history of medicine, a goal pursued by physicians trying to combat the clinical manifestations of thrombosis since ancient times. Until the last decade, VKAs were the only oral anticoagulants available and used in clinical practice. Today, their clinical use has progressively shrunk, as the non-vitamin K antagonist oral anticoagulants (NOACs) are increasingly replacing VKAs in various conditions after the successful completion of several large randomized controlled trials. Currently, new research is tackling upstream components of the intrinsic pathway - particularly factor XI and factor XII - for the development of new, even safer anticoagulants promising to reduce bleeding without compromising efficacy. This review highlights the evolution of oral anticoagulant therapy tracing the key stages of a long and fascinating history that has unfolded from the first part of the twentieth century until today, indeed an intriguing journey where serendipity is intertwined with the tenacious work of many researchers.
Insights
The evolution of oral anticoagulants, from vitamin K antagonists (VKAs) to newer non-vitamin K antagonist oral anticoagulants (NOACs), has transformed thromboembolic disease treatment. Future research focuses on even safer anticoagulants targeting intrinsic pathway factors.
Area of Science:
- Cardiology
- Hematology
- Pharmacology
Background:
- Vitamin K antagonists (VKAs) have been the primary oral anticoagulants for thromboembolic disease prevention and treatment for 80 years.
- The development of oral anticoagulants represents a significant advancement in medical history, addressing thrombosis since antiquity.
- Historically, VKAs were the sole oral anticoagulants available for clinical use.
Purpose of the Study:
- To review the historical evolution of oral anticoagulant therapy.
- To highlight the transition from VKAs to non-vitamin K antagonist oral anticoagulants (NOACs).
- To discuss emerging research in developing novel anticoagulants with improved safety profiles.
Main Methods:
- This review synthesizes historical data and clinical trial outcomes.
- It traces the development and adoption of different classes of oral anticoagulants.
- It examines current research trends in anticoagulant drug discovery.
Main Results:
- The clinical use of VKAs has declined with the rise of NOACs, supported by large randomized controlled trials.
- NOACs offer an alternative to VKAs in managing various thromboembolic conditions.
- Newer anticoagulants targeting factors XI and XII are under investigation for enhanced safety and efficacy.
Conclusions:
- Oral anticoagulant therapy has undergone significant evolution, improving the management of thromboembolic disorders.
- The shift from VKAs to NOACs marks a major advancement in patient care.
- Ongoing research promises the development of next-generation anticoagulants with reduced bleeding risks.
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