The EASE Study: Randomized Trial of a Novel Approach to Addressing Fear of Progression in Advanced Cancer

The EASE Study: Randomized Trial of a Novel Approach to Addressing Fear of Progression in Advanced Cancer

Precision oncology has led to a growing population of adults with advanced cancer living increasingly longer lives in the face of profound uncertainty about the future, with over half reporting moderate to high fear of cancer progression (FoP). These fears are associated with anxiety and depression, over-use of healthcare, physical symptom burden, higher treatment regret, fatigue, and, in many studies, poorer quality of life. Moreover, FoP is strongly correlated with cancer-related trauma symptoms-physical hyperarousal, intrusiveness of cancer thoughts/images, and avoidance of cancer-related thoughts and feelings, suggesting overlapping symptoms. While behavioral interventions exist to target fear of recurrence in early-stage cancer survivors, there is a dearth of behavioral interventions to address FoP or cancer-related trauma symptoms in adults with advanced cancer, and no known published randomized trials of such interventions in the United States. In addition, cutting-edge developments for the treatment of trauma in general populations have not been adapted to cancer populations. To address these critical gaps, we adapted a cutting-edge behavioral treatment for trauma to reduce FoP and cancer-related trauma symptoms among adults with advanced cancer. The intervention, titled EASE, is based on written exposure therapy, an efficacious approach for reducing trauma symptoms in general populations that is better accepted and far briefer than other gold-standard approaches. EASE adapts this approach to help advanced cancer patients with elevated FoP and cancer-related trauma symptoms reduce their fear of the future by using written exposure focused on their future worst-case scenario with cancer. Informed by the NIH stage model, we evaluated EASE delivered by telehealth in an open pilot trial for 29 adults with late-stage cancer and elevated FoP and cancer-related trauma symptoms. Pilot findings show strong acceptability, feasibility, and efficacy potential. We now propose to conduct the first randomized trial of EASE, and, thus, first known randomized trial in the United States of a behavioral intervention for FoP and cancer-related trauma symptoms among adults with advanced cancer. This 2-arm trial (N=250) will compare EASE delivered by telehealth with Usual Care (UC). We aim to compare EASE to UC on FoP and cancer-related trauma symptoms (primary outcomes) and anxiety, depression, hopelessness, and quality of life, at post-intervention (Aim 1) and follow-up (Aim 2). We will evaluate mechanisms for EASE relative to UC (Aim 3). Offering EASE in both English and Spanish, and by telehealth, increases access. Simple content increases scalability. Rigorous evaluation of EASE has the potential to provide a paradigm-shifting intervention ready for dissemination and to inform evidence-based care guidelines for distressed adults with advanced cancer.

Inclusion Criteria:

• Adults, age 18 or older
• Have been diagnosed with either (a) Stage IV metastatic cancer of any solid tumor type, (b) Stage III ovarian cancer that has recurred, (c) 'extensive stage' small cell lung cancer, or (d) glioblastomas of any staging
• Are capable at time of consent of understanding and voluntarily consenting themselves to the study, attending intervention sessions, and writing for 30 minutes, confirmed by an Eastern Cooperative Group Performance Status Scale of ≤2
• Report elevated FoP and cancer-related trauma symptoms on the screening measures: FoP-Q 12-item short version: mean score of 2.5 (or total score of 30), IES-R: mean of 1.5 (or total score of 33)
• Are fluent in English or Spanish and can read English proficiently (for the surveys, which are in English)

Exclusion Criteria:

• Patients who have a history of chronic untreated trauma unrelated to their cancer, psychiatric hospitalization or suicide attempt(s) in the past 2 years, or current high suicide risk, as identified in the screening.
• EMR-noted cognitive impairment (such as dementia) is an exclusion due to potential impairments in neural learning mechanisms that may affect the efficacy of exposure therapy.