ClinicalTrials.gg
CompletedNCT02971254Updated Jun 9, 2020

The Effects of Inhalational Anaesthetics in Cognitive Functions in Down Syndrome Patients

A Phase 2 interventional study of Sevoflurane and Desflurane in Down Syndrome, sponsored by Asklepieion Voulas General Hospital. Completed at 1 site in Greece. Open to participants aged 16 Years to 75 Years. Per ClinicalTrials.gov, last updated 2020-06-09.

Sponsored by Asklepieion Voulas General Hospital · Phase 2, Interventional, and Supportive care

Phase
Phase 2
Study type
Interventional
Enrollment
39
Allocation
Randomized
Ages
16 Years to 75 Years
Sex
All
01

Study summary

Recovery of the cognitive functions and recovery features after general anaesthesia in Down syndrome patients. A comparison of Sevoflurane and Desflurane.

02

Conditions studied

  • Down Syndrome

Browse trials for

Keywords

  • cognitive functions
  • anaesthesia recovery
  • sevoflurane
  • desflurane
03

In context

Down Syndrome

438 studies on the registry are indexed under Down Syndrome; 99 are open to participants now.

This study's enrollment of 39 is close to the median of 37 across 286 interventional studies indexed under Down Syndrome.

Browse Down Syndrome studies →

Lead sponsor

Asklepieion Voulas General Hospital is the lead sponsor of 13 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
16 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • (ASA) classification I, II or III
  • Down syndrome patients
  • must be able to undergone general anaesthesia
  • dental surgery necessity

Exclusion criteria

Exclusion Criteria:

  • severe dementia
  • severe hearing, vision, speaking problems
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ASA physical status

The anaesthetists’ scale of health before surgery: I is healthy, II has a mild illness that is under control, III a severe one, IV a severe illness that is a constant threat to life. V and VI are used for the critically ill and for organ donors.

05

Study design

Phase
Phase 2
Primary purpose
Supportive care
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
39 participants (actual)

Study arms

  • Active comparator
    Sevoflurane group

    inhalation anaesthetic Sevoflurane, 1 M.A.C. during surgery

    Drug: Sevoflurane

  • Active comparator
    Desflurane group

    inhalation anaesthetic Desflurane, 1 M.A.C. during surgery

    Drug: Desflurane

Interventions

06

What researchers measure

Primary outcomes

  1. Change in Cognitive Functions

    Quantitative result measured by Prudhoe Cognitive Function Test (PCFT), a scale to assess cognitive function in adults with Down's syndrome.

    Time frame: Baseline (12 to 24 hours before surgery), 1,5 hours after surgery and 4 hours after surgery

Secondary outcomes

  1. Spontaneous breathing

    Time frame: Interval between discontinuation of inhaled agent and first spontaneous breath and up to 1 hour.

  2. Eye opening

    Time frame: Interval between discontinuation of inhaled agent and first eye opening and up to 1 hour.

  3. Extubation

    Time frame: Interval between discontinuation of inhaled agent and extubation and up to 1 hour.

  4. Orientation

    Time frame: Interval between discontinuation of inhaled agent and orientation in place, time, people and up to 1 hour.

  5. Respond to commands

    Time frame: Interval between discontinuation of inhaled agent and respond to commands and up to 1 hour.

  6. modified Aldrete Scoring System (mASS)

    Time frame: Interval between entrance in Post Operative Care Unit (PACU) and fulfillment of the criteria mASS to discharge PACU and up to 2 hours.

  7. Orientation in PACU

    Orientation in place, time and people in Post Operative Care Unit (PACU).

    Time frame: 30 minutes after PACU entrance

  8. Orientation in PACU

    Orientation in place, time and people in Post Operative Care Unit (PACU).

    Time frame: 60 minutes after PACU entrance

  9. Antiemetics necessity.

    Note if additional antiemetics was needed up to 4 hours postoperatively.

    Time frame: Interval between entrance in PACU and administer antiemetic medication and up to 4 hours.

  10. Painkillers necessity.

    Note if additional painkillers was needed up to 4 hours postoperatively.

    Time frame: Interval between entrance in PACU and administration of antiemetic medication and up to 4 hours.

  11. Patient Alertness, Wellness, Energy

    Assessment of the accompanying persons.

    Time frame: Baseline, 12 to 24 hours before surgery

  12. Patient Alertness, Wellness, Energy

    Assessment of the accompanying persons.

    Time frame: 1,5 hours after surgery

  13. Patient Alertness, Wellness, Energy

    Assessment of the accompanying persons.

    Time frame: 4 hours after surgery

  14. Patient satisfaction over anaesthesia.

    Assessment of the accompanying persons.

    Time frame: 4 hours after surgery

  15. Postanesthesia Discharge Scoring System (PADSS)

    Time frame: Fulfillment of the criteria of PADSS from discontinuation of inhaled agent and up to 1 day.

07

Study locations

1 site
  • Gkliatis Emmanouil
    Athens, Greece
08

References and documents

Publications

  • Gkliatis E, Makris A, Staikou C. The impact of inhalation anesthetics on early postoperative cognitive function and recovery characteristics in Down syndrome patients: a randomized, double - blind study. BMC Anesthesiol. 2021 Sep 17;21(1):227. doi: 10.1186/s12871-021-01447-x. PubMed 34535086 ↗

Individual participant data

Plan to share: Undecided

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Dec 2016 to primary completion in Jan 2019, 25 months.

Of 21 phase 2 interventional studies under Down Syndrome, half reached primary completion within 36 months of starting (the median), counting those still running; a quarter within 26 and three quarters within 61. This study's 25 months is below that.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 11, 2016
First posted
Nov 22, 2016
StartActual
Dec 1, 2016
Primary completionActual
Jan 6, 2019
CompletionActual
May 30, 2019
Last update
Jun 9, 2020
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 9, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT02971254
Lead sponsor
Asklepieion Voulas General Hospital
Responsible party
Gkliatis Emmanouil (Anaesthetist, Asklepieion Voulas General Hospital) — Principal investigator
First posted
Nov 22, 2016
Start date
Dec 1, 2016
Primary completion
Jan 6, 2019
Completion
May 30, 2019
Last update
Jun 9, 2020

Study contacts

Emmanouil Gkliatis, MD
principal investigator · GH Asklepieio Voulas

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jun 2020. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drugs tested here: Sevoflurane · Desflurane

Start the discussion