Skip to content

Acute cognitive dysfunction after isoflurane sedation compared to propofol – an a priori hypothesis substudy of a randomized controlled trial

Acute cognitive dysfunction after isoflurane sedation compared to propofol – an a priori hypothesis substudy of a randomized controlled trial - ISOCONDA-ACD

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
DRKS
Registry ID
DRKS00018958
Enrollment
300
Registered
2020-01-07
Start date
2017-07-02
Completion date
Unknown
Last updated
2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

F05.8 R40.0

Interventions

Group 1: Sedation with Isoflurane (ANACONDA), range of dosage 0.2-0.7 Vol% end-tidal, max. 1.5 Vol% end-tidal Group 2: Propofol intravenously, dosage range 0.3 - 4.0 mg x kg-1 x h-1

Sponsors

Sedana Medical AB
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: Inclusion criteria for the substudy: Pat. extubated within 7 days after start of study drug. Inclusion criteria for the main study called "A randomised, controlled, open-label study to confirm the efficacy and safety of sedation with isoflurane in invasively ventilated ICU patients using the AnaConDa administration system" 1. Male or female subjects, = 18 years (18 or older) 2. Continuous invasive ventilation and sedation = 48 hours (48 hours or less) at start of study sedation 3. Clinically likely to need invasive ventilation and sedation = 24 hours (24 hours or more) at randomisation 4. Ongoing sedation with propofol at time of randomisation 5. Prescribed target sedation depth within the RASS range -1 to -4 6. Signed informed consent or emergency situation inclusion criteria fulfilled and documented.

Exclusion criteria

Exclusion criteria: Exclusion criteria for subsidy: Pat. ventilated longer that 7 days from start of study drug. Exclusion criteria for the main study called "A randomised, controlled, open-label study to confirm the efficacy and safety of sedation with isoflurane in invasively ventilated ICU patients using the AnaConDa administration system" 1. Has not reached prescribed target sedation depth any time within the last 8 hours at randomisation 2. History of or genetic predisposal for malignant hyperthermia 3. Uncompensated acute circulatory failure at time of randomisation (MAP < 55 mmHg despite iv fluids and vasopressors). 4. Hepatic impairment of classification C according to the Child-Pugh score (Cholongitas et al., 2005). 5. Any for the study, relevant clinically significant abnormalities in clinical chemistry or haematology results at the time of screening, precluding study participation, as judged by the investigator 6. Acute neuropathology without ICP monitoring, including but not limited to stroke, neurosurgery and head trauma. 7. Planned anaesthesia or surgery within 24 hours from randomisation 8. Tidal volume < 350 ml 9. History of any clinically significant disease or disorder which, in the opinion of the investigator, may either put the subject at risk because of participation in the study, or influence the results or the subject’s ability to participate in the study 10. Need for continuous muscle relaxation at the time of randomisation 11. Positive pregnancy test in women 12. History of allergy/hypersensitivity to isoflurane or propofol 13. Known participation in any other clinical study that included drug treatment within three months of the first administration of investigational product 14. Documented limitation of medical treatment.

Design outcomes

Primary

MeasureTime frame
Coma and delirium on the day of extubation and the calendar day thereafter

Secondary

MeasureTime frame
Level of sedation over time

Countries

Germany, Slovenia

Contacts

Public ContactUlf Günther

Universitätsklinik für Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie

ulf.guenther@uni-oldenburg.de+49 441 403 70773

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026