The goal of this study is to refine and test a psychosocial intervention called ASCENT (ACT-based Supportive intervention for patients with CENTral nervous system tumors). This intervention was developed to help patients after being diagnosed with a brain tumor. The main question this study aims to answer is whether this intervention is feasible (i.e., possible to carry out) and acceptable (i.e., considered helpful) to patients. Participants will be asked to take part in 6 coaching sessions and complete short surveys at four different time points. Some participants will be asked to share feedback via interviews.

This study will examine the feasibility and acceptability of a novel, population-specific intervention designed to help patients with newly diagnosed malignant brain tumors cope with their illness.

This project is currently recruiting participants for intervention refinement activities in preparation for the pilot RCT. For intervention refinement, we are enrolling 15 stakeholders and 10 open pilot participants to gather feedback about the intervention to improve it prior to commencing the randomized controlled trial. The stakeholder feedback and open pilot refinement phase of the study is critical for intervention refinement for the RCT. The investigators will then evaluate the feasibility and acceptability of the refined ASCENT intervention versus usual care in this pilot randomized controlled trial (n=100). The investigators will also estimate preliminary effects of ASCENT on psychological and behavioral outcomes.

Inclusion Criteria:

• Age ≥ 18
• Massachusetts General Hospital Cancer Center Patient
• Within 6 months of diagnosis of malignant primary Central Nervous System (CNS) tumor
• English speaking

Exclusion Criteria:

• Inability to provide informed consent as assessed by the study team (e.g., due to severe cognitive impairment/dementia)
• Moderate to severe receptive aphasia (Quick Aphasia Battery sentence comprehension subscale < 8)
• Current or imminent hospice enrollment

Deidentified participant data will be made available to the public via openICPSR (Inter-University Consortium for Political and Social Research).

Raw interview data may contain potentially identifiable contextual material, the study will not share raw interview data to preserve confidentiality. All other data (de-identified demographic information, de-identified clinical data, participant survey responses, and coded interview data) will be preserved and shared. Respondent identifiers will not be shared.

Data to be made publicly available will include the study protocol, the semi-structured exit interview guide, data collection instruments, and a codebook describing relevant features of measured variables (e.g., variable name, related survey questions and possible responses, codes for missing values). The codebook will be accompanied by univariate descriptive statistics for variables. A User Guide will be made accessible with descriptions of data and instructions for interpretation.

In accordance with the National Cancer Institute's Clinical Trial Access Policy, results will be made publicly accessible within 12 months of the study completion date or 12 months of final subject data collection (whichever comes first).

Data will remain available for as long as the repository is in existence.

Deidentified participant data will be made available to the public via openICPSR (Inter-University Consortium for Political and Social Research). However, any member of the public wishing to gain access to this data must create an account with ICPSR and therefore agree to its Terms of Use designed to protect study participants and limit redistribution of the downloaded dataset.