A nurse-led intervention, Daily Engagement of Meaningful Activities (DEMA), was evaluated for feasibility and effect sizes in a two-group randomized pilot study with 36 patient-caregiver dyads (17 DEMA and 19 attention control). Effect sizes were estimated on 10 outcomes: dyad functional ability awareness congruence; patients' meaningful activity performance and satisfaction, confidence, depressive symptoms, communication satisfaction, physical function, and life satisfaction; and caregivers' depressive symptoms and life changes. High feasibility of DEMA was supported by the following indicators: consent (97.7%), session completion (91.7%), and Time 3 measure completion (97.2%). Compared to the attention control group, the DEMA group had higher dyad congruence in functional ability awareness and life satisfaction 3 months post-intervention and improved physical function at 2 weeks post-intervention. Although DEMA showed high feasibility and benefits on some health-related outcomes, further testing of DEMA in a larger randomized controlled clinical trial is needed.