| Active, not recruiting | N/A | 399 | Europe, US, RoW | Standard Exposure, Stress Management Training, Enhanced Exposure | University of Texas at Austin, University of North Carolina, Chapel Hill, University of Colorado, Boulder, University of Miami, University of Mississippi, Oxford, Ruhr University of Bochum, Boston University, Fordham University, The University of New South Wales, Southern Methodist University, Institute of Behavioral-Therapy and -Medicine at the Philipps University Marburg, Technische Universität Dresden, Curtin University, Hebrew University of Jerusalem, University of Göttingen | Elevated Anxiety Sensitivity | 09/24 | 09/24 | | |