“…ISTDP is an emotion-focused, experiential psychodynamic treatment model with a growing evidence base (Abbass, Town, & Driessen, 2012;Lilliengren, Johansson, Lindqvist, Mechler, & Andersson, 2016;Town & Driessen, 2013). Previous studies have indicated that ISTDP may be effective in complex psychiatric conditions, such as personality disorders (e.g., Abbass, Sheldon, Gyra, & Kalpin, 2008;Solbakken & Abbass, 2015), treatment resistant depression (Town, Abbass, Stride, & Bernier, 2017) and medically unexplained symptoms (Abbass et al, 2010;Chavooshi, Mohammadkhani, & Dolatshahee, 2016), all of which overlap considerably with GAD. Although ISTDP has not previously been evaluated specifically for GAD, we hypothesize that ISTDP will be associated with significant reductions in symptoms and health care utilization in this population.…”