| Not yet recruiting | N/A | 14 | Canada | Fentanyl, fentaNYL Citrate, Saline | University of British Columbia | Dyspnea, Muscle Strain | 12/23 | 06/24 | | |
| Not yet recruiting | N/A | 15 | Canada | Pharmacological agent: Citalopram, Placebo | University of British Columbia | Depression, Serotonin Deficiency | 08/24 | 08/24 | | |