Policy internationally is supportive of intersectoral partnerships (ISPs) for promoting positive outcomes among people with complex social, psychological, and physical needs. This realist-informed study describes the development of a program theory to provide insight into enactment of effective ISPs. Interviews were completed with 18 senior staff with leadership roles in six ISPs, including voluntary, statutory, and commercial organizations, supporting people with complex health and social care needs. An iteratively developed and refined program theory, termed the “Incite” model, was developed, with collaboration with participants and an advisory group, including people with lived experience. Important contextual conditions that emerged included organizational culture, historical perspectives, policy, and social determinants of health. Mechanisms included desire for change, creating safe psychological spaces, establishing shared values, and talking about power. Outcomes included transformed world view, increased psychological safety, clarity of purpose, fluidity of relationships, and power shifting. Three phases of partnership development were also identified within the model. This study has led to a clearer, more rigorous, and systematic understanding, with recommendations for how ISPs might be developed or expanded. How the Incite model may be operationalized is discussed, as well as implications for policy, practice, and research.

国际政策支持跨部门合作伙伴关系 (ISP)，以促进具有复杂社会、心理和身体需求的人们取得积极成果。这项现实主义的研究描述了程序理论的发展，以提供对有效 ISP 制定的洞察力。对 18 名在 6 个 ISP 中担任领导角色的高级员工完成了访谈，这些 ISP 包括志愿组织、法定组织和商业组织，为有复杂健康和社会护理需求的人提供支持。与参与者和包括有生活经验的人在内的咨询小组合作，开发了一种迭代开发和完善的程序理论，称为“Incite”模型。出现的重要背景条件包括组织文化、历史观点、政策和健康的社会决定因素。机制包括改变的愿望、创造安全的心理空间、建立共同的价值观和谈论权力。结果包括转变的世界观、增加的心理安全感、明确的目标、流畅的人际关系和权力转移。该模型还确定了伙伴关系发展的三个阶段。这项研究导致了更清晰、更严格和系统的理解，并就如何开发或扩展 ISP 提出了建议。讨论了如何实施 Incite 模型，以及对政策、实践和研究的影响。和权力转移。该模型还确定了伙伴关系发展的三个阶段。这项研究导致了更清晰、更严格和系统的理解，并就如何开发或扩展 ISP 提出了建议。讨论了如何实施 Incite 模型，以及对政策、实践和研究的影响。和权力转移。该模型还确定了伙伴关系发展的三个阶段。这项研究导致了更清晰、更严格和系统的理解，并就如何开发或扩展 ISP 提出了建议。讨论了如何实施 Incite 模型，以及对政策、实践和研究的影响。