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Rationale: Shared decision-making (SDM) for lung cancer screening (LCS) is recommended in guidelines and required by Medicare, yet it is seldom achieved in practice. The best approach for implementing SDM for LCS remains unknown, and the 2021 U.S. Preventive Services Task Force calls for implementation research to increase uptake of SDM for LCS. Objectives: To develop a stakeholder-prioritized research agenda and recommended outcomes to advance implementation of SDM for LCS. Methods: The American Thoracic Society and VA Health Services Research and Development Service convened a multistakeholder committee with expertise in SDM, LCS, patient-centered care, and implementation science. During a virtual State of the Art conference, we reviewed evidence and identified research questions to address barriers to implementing SDM for LCS, as well as outcome constructs, which were refined by writing group members. Our committee ( n  = 34) then ranked research questions and SDM effectiveness outcomes by perceived importance in an online survey. Results: We present our committee's consensus on three topics important to implementing SDM for LCS: 1 ) foundational principles for the best practice of SDM for LCS; 2 ) stakeholder rankings of 22 implementation research questions; and 3 ) recommended outcomes, including Proctor's implementation outcomes and stakeholder rankings of SDM effectiveness outcomes for hybrid implementation-effectiveness studies. Our committee ranked questions that apply innovative implementation approaches to relieve primary care providers of the sole responsibility of SDM for LCS as highest priority. We rated effectiveness constructs that capture the patient experience of SDM as most important. Conclusions: This statement offers a stakeholder-prioritized research agenda and outcomes to advance implementation of SDM for LCS.

Shared decision-making (SDM) for lung cancer screening (LCS) is recommended by multiple organizations, reflecting a larger movement toward patient-centered care. Yet SDM for LCS does not routinely occur owing to barriers at multiple levels. Moreover, how best to implement SDM into routine clinical practice remains unknown. There is a need for a novel approach to overcome multilevel barriers and ensure high-quality SDM for LCS is integrated into routine practice. We present the protocol for our U.S. Department of Veterans Affairs (VA)-funded study. Our protocol is designed to implement and evaluate a multilevel, tailored approach to SDM for LCS in routine clinical practice within the VA New England Health Care Network, comprising eight medical centers. In this prospective, pragmatic hybrid implementation-effectiveness study, we will first conduct a formative evaluation of barriers to SDM for LCS at each level of the socioecological model, which will inform our tailored implementation plan. We will then sequentially introduce components of our tailored, multilevel approach to implementing SDM for LCS across VA New England. Finally, using mixed methods, we will evaluate the implementation and its impact on effectiveness (primary outcome, defined as patient-centeredness of SDM), as well as implementation outcomes informed by the RE-AIM implementation science framework (i.e., reach to patients, adoption by providers, implementation fidelity). Tailored implementation will address identified challenges to achieving policy recommendations for SDM for LCS in VA New England, inform nationwide implementation of SDM for LCS, and address stakeholder interests in promoting more patient-centered interactions across the VA.