Adapting Health Technology Assessment agency standards for surrogate outcomes in early stage cancer trials: what needs to happen?

INTRODUCTION: An avalanche of early stage cancer clinical trials is coming. The majority of these solely use surrogate outcomes that have not been validated against a target outcome of interest (e.g. overall survival). Current HTA guidance on surrogate outcome validation are not methodologically or practically conducive to this scenario. AREAS COVERED: We provide a high-level overview of methods, approaches, and conceptual thinking for making better use of limited evidence within early stage cancer HTA submissions. We outline regulatory and HTA issues and emphasize how evidence transitions from one to another, what major gaps currently exist, and how these may be bridged. We summarize current methodologies and practices, their pros and cons. We outline how complementary measurements strengthen evaluations and address fallacies and biases of conventional statistical methods for surrogate outcomes validation. The value of real-world data to support some of the necessary validity components is discussed. Lastly, we address the importance of the patient voice for better understanding which surrogate outcomes may appropriately inform HTA. EXPERT OPINION: Conventional surrogate outcome validation represents a fraught and sub-optimal framework for HTA purposes, particularly for early stage cancer. Tools for optimizing use of limited evidence exist. Education of stakeholders is highly needed.

Patient-reported Experience of Diagnosis, Management, and Burden of Renal Cell Carcinomas: Results from a Global Patient Survey in 43 Countries.

The International Kidney Cancer Coalition (IKCC) is a federation of 46 affiliated patient organisations representing 1.2 million patients worldwide that is committed to reducing the global burden of kidney cancer. A large-scale global survey of patients with renal cell carcinoma (RCC) to capture real-world experiences has never been undertaken. The 35-question survey was designed to identify geographic variations in patient education, experience, awareness, access to care, best practices, quality of life, and unmet psychosocial needs. A total of 1983 responses were recorded from 43 countries in 14 languages. Analysis revealed key findings. (1) At diagnosis, 43% of all respondents had no understanding of their RCC subtype. (2) Shared decision-making remains aspirational: globally, 29% of all patients reported no involvement in their treatment decision, responding "My doctor decided for me". (3) While 96% of respondents reported psychosocial impacts, surprisingly, only 50% disclosed them to their health care team. (4) Lastly, 70% of patients were not asked to participate in a clinical trial, although 90% indicated they would be interested. The survey reflects patient perspectives from diverse clinical scenarios in which different treatment options are available. The data point to actionable deficits in the fields of clinical trials, psychosocial support, and shared decision-making. PATIENT SUMMARY: In this brief report, we highlight the key results from the first large-scale global survey of patients with kidney cancer to capture real-world experiences. This survey reflects patient perspectives from diverse clinical scenarios in which different treatment options are available. We conclude that there is a need for improvement in the fields of clinical trials, psychosocial support, and shared decision-making.