IGNITE-TX Phase III: (Identifying Individuals for Genetic Testing & Treatment) Intervention

Primary Objectives: 1. Determine the impact of IGNITE-TX on the uptake of cascade genetic testing (CGT) in at-risk relatives (ARRs) at 6 months. 2. Use a mixed methods approach, guided by the NIMHD framework, to evaluate the impact of IGNITE-TX on informational, social, and emotional support outcomes within families at 6 months. 3. Employ formative and process evaluations and stakeholder engagement to guide IGNITE-TX implementation and dissemination through the RE-AIM QuEST framework. Secondary Objective: Analyze the correlation of CGT completion rates within families to understand the influence of familial relationships on genetic testing uptake. Determine the impact of the IGNITE-TX Intervention on the uptake of CGT, informational, social, and emotional support outcomes within families at 12 months. Exploratory Objective: Evaluate the effectiveness of social media as a mechanism to drive outreach, recruitment, and engagement with the IGNITE-TX intervention. Determine the impact of the IGNITE-TX Intervention on the uptake of CGT, informational, social, and emotional support outcomes within families at 12 months.