Demonstrating the influence of HTA: INAHTA member stories of HTA impact.

A central function of health technology assessment (HTA) agencies is the production of HTA reports to support evidence-informed policy and decision making. HTA agencies are interested in understanding the mechanisms of HTA impact, which can be understood as the influence or impact of HTA report findings on decision making at various levels of the health system. The members of the International Network of Agencies for HTA (INAHTA) meet at their annual Congress where impact story sharing is one important activity. This paper summarizes four stories of HTA impact that were finalists for the David Hailey Award for Best Impact Story.The methods to measure impact include: document review; claims analysis and review of reimbursement status; citation analysis; qualitative evaluation of stakeholders' views; and review of media response. HTA agency staff also observed changes in government activities and priorities based on the HTA. Impact assessment can provide information to improve the HTA process, for example, the value of patient and clinician engagement in the HTA process to better define the assessment question and literature reviews in a more holistic and balanced way.HTA reports produced by publicly funded HTA agencies are valued by health systems around the globe as they support decision making regarding the appropriate use, pricing, reimbursement, and disinvestment of health technologies. HTAs can also have a positive impact on information sharing between different levels of government and across stakeholder groups. These stories show how HTA can have a significant impact, irrespective of the health system and health technology being assessed.

The 'Top 10' Challenges for Health Technology Assessment: INAHTA Viewpoint.

The International Network of Agencies for Health Technology Assessment (INAHTA) spans the globe as a network of 50 publicly-funded health technology assessment (HTA) agencies supporting health system decision making for 1.4 billion people in thirty countries. Agency members are non-profit HTA organizations that are part of, or directly support, regional or national governments. Recently, INAHTA surveyed its members to gather perspectives from agency leadership on the most important issues in HTA today. This paper describes the top 10 challenges identified by INAHTA members. Addressing these challenges requires a call for action from INAHTA member agencies and the many other actors involved in the HTA ecosystem. In opening this call for action, INAHTA will lead the way; however, a comprehensive undertaking from all players is needed to effectively address these challenges and to continue to evolve HTA in its role as a strong and effective contributor to health systems.