| Completed | N/A | 72 | Europe | Complex cancer rehabilitation | University of Bergen, Norwegian Extra Foundation for Health and Rehabilitation, Askøy Municipality | Cancer Survivors, All Cancers | 11/19 | 12/22 | | |
NCT03570229: Hyperbaric Oxygenation Treatment and Quality of Life |
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| Completed | N/A | 137 | Europe | Hyperbaric oxygen treatment | University of Bergen, Haukeland University Hospital | Cancer | 12/22 | 12/22 | | |
| Completed | N/A | 63 | Europe | observation | Oslo University Hospital, St. Olavs Hospital, University Hospital, Akershus, Vestre Viken Hospital Trust, Hodepineklinikken Bergen, Molde Hospital, Namsos Hospital, Medi3, Oslo Hodepinesenter, Sandvika Nevrosenter | Headache, Migraine, COVID-19 | 10/23 | 12/23 | | |