Physicians and nurses (MDs/ RNs) struggle to communicate effectively about palliative and end-of-life (PC/EOL) care with parents when their child's prognosis is poor, and rarely collaborate as a team in this difficult process. The aim of this study was to develop and evaluate training strategies for MD/RN dyads to collaboratively deliver a PC/EOL communication intervention called, Communication Plan: Early through End of Life (COMPLETE), to 24 parents of children with brain tumors. During Phase I, training strategies were based on principles from a Relationship Centered Care perspective. The training was delivered to 3 pediatric neuro-oncologists and 5 oncology nurses by a team of parent advisors and a team of expert consultants (i.e., medical ethics, communication, and PC/EOL). Our 2-day training included 4 modules: family assessment, goal directed treatment planning, anticipatory guidance, and staff communication and follow-up. Each module included: didactic content, small group reflective sessions, and communication skills practice with bereaved parent. Evaluations included dichotomous (agree/disagree) ratings and qualitative comments on didactic content, small group reflection, and skills practice for each module. Helpful aspects of our training strategies included: parent advisers' insights, emotional presence, emphasis on hope and non-abandonment messages, written materials to facilitate PC/EOL communication, and a team approach. For this presentation we will discuss insights gained regarding use of a parent advisory panel, strategies to help the MD/RN dyads feel comfortable working as a team to communicate with parents, and ways to improve training procedures and our intervention.