Background: The majority of people with dementia (PwD) experience behavioural and psychological disturbances (BPDD) such as depression, agitation, apathy and aggression, which can be associated with disease progression, hospitalisation, institutionalisation and increased morbidity, mortality, and healthcare utilisation. Considering the substantial evidence on the risks, side effects, and long-term inefficacy of psychotropic drugs for the treatment of BPDD, numerous guidelines recommend non�pharmacological strategies as the preferred first line treatment approach. The aim of this study was to develop a multi-component non-pharmacological intervention (NPI) using mindfulness and dance movement (psycho)therapy for PwD and their caregivers (“Mind Your Next Dance” [MYND] Programme) and to prepare a protocol to assess its feasibility, acceptability and effectiveness. Method: Informed by the UK’s Medical Research Council’s guidelines for developing complex interventions, an exploratory multiphase sequential mixed methods design was employed. Three studies were conducted, whereby qualitative data from in-depth individual interviews (n= 31) and a focus group (n=10) informed a (mainly) quantitative Delphi survey (n=30). A critical realist, inductively driven approach to reflexive thematic analysis was used to analyze the qualitative data. Results: Analysis of the qualitative interview data gave rise to four overarching themes: (1) key therapeutic factors and intervention characteristics contributing to therapeutic change, (2) barriers to and enablers of the adoption of NPIs, (3) lessons learned from practice and (4) a framework for understanding integrative and holistic approaches to compassionate and person-centred dementia treatment and care. Four overarching themes were identified in the focus group analysis: (1) the reconciliation of pharmacological with non-pharmacological approaches for integrated dementia care, (2) the (de)medicalization of psychological therapies, (3) therapeutic factors that can improve outcomes and facilitate therapeutic change and (4) rebuilding more equal and accessible dementia care. Delphi findings complemented and validated the findings from the interviews and focus group and facilitated formal consensus on a range of statements regarding (1) the key determinants of effective therapeutic processes, (2) factors that can improve implementation and (3) factors enabling effective holistic, integrated and continuing dementia care. Conclusions: The MYND programme can benefit PwD and their caregivers when implemented by competent professionals, within a person-centred and human rights-based approach and when integrated in health care plans/community mental health services. Psychotherapeutic and psychosocial interventions can address complex and diverse dementia-related needs, including social and peer support, assisting PwD and caregivers to maintain social engagement and improve BPDD, as well as enhancing relationships, well-being and quality of life. These interventions should be personalised and co-developed by PwD, caregivers and diverse cadres of clinicians and (psycho)therapists. They should also be adaptable to different contexts (clinical and community settings, in-person, online, blended) and changing capacities, embracing individuality, diversity and multiculturalism. They should comprise an integral part of post diagnostic dementia support and should be widely available and communicated and easily accessible. It is crucial for such interventions to be offered at low/no cost, sustained over time, and supported by policies, clinical practice guidelines and governmental funding.