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Condition (MeSH)

Delayed Emergence from Anesthesia

ClinicalTrials.gov lists 95 trials for Delayed Emergence from Anesthesia or a narrower condition beneath it.

MeSH D055191 Pathological Conditions, Signs and Symptoms C23
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Phase 1 Phase 1 1 Phase 1/2 Phase 1/2 1 Phase 2 Phase 2 4 Phase 3 Phase 3 1 Phase 4 Phase 4 22 Not applicable Not applicable 30 Observational Observational 36 Phase 1 Phase 1 1 Phase 1/2 Phase 1/2 1 Phase 2 Phase 2 4 Phase 3 Phase 3 1 Phase 4 Phase 4 22 Not applicable Not applicable 30 Observational Observational 36

Trials per phase (log scale)

95 of the 95 trials are tagged with Delayed Emergence from Anesthesia itself; the rest are tagged with a narrower condition beneath it.

Get the Delayed Emergence from Anesthesia report as a PDF

The PDF carries up to 50 rows of each section, where the page shows the first few, with the sources listed. Enter a work email and confirm it from the message we send, and the report follows by email.

When did Delayed Emergence from Anesthesia trials start? (18)

Shown in this order: most recent first, 1990 onwards. 2026 is partial: trials registered with a 2026 start date so far, not a full year.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational

Top of scale: 9

2008: 2 trials (Observational 1, Not applicable 1) 2009: 2 trials (Observational 1, Phase 4 1) 2011: 3 trials (Observational 3) 2012: 3 trials (Observational 1, Phase 4 2) 2013: 3 trials (Observational 1, Not applicable 1, Phase 4 1) 2014: 9 trials (Observational 3, Not applicable 4, Phase 4 1, Phase 1 1) 2015: 3 trials (Not applicable 2, Phase 4 1) 2016: 6 trials (Phase 4 5, Phase 2 1) 2017: 7 trials (Observational 4, Not applicable 2, Phase 2 1) 2018: 9 trials (Observational 4, Not applicable 1, Phase 4 2, Phase 2 2) 2019: 3 trials (Observational 1, Not applicable 1, Phase 4 1) 2020: 5 trials (Observational 1, Not applicable 4) 2021: 7 trials (Observational 1, Not applicable 3, Phase 4 3) 2022: 5 trials (Not applicable 5) 2023: 8 trials (Observational 6, Not applicable 1, Phase 4 1) 2024: 7 trials (Observational 4, Not applicable 1, Phase 4 1, Phase 3 1) 2025: 9 trials (Observational 2, Not applicable 4, Phase 4 2, Phase 1/2 1)

Trials registered with a start date in each year, 1990 onward, stacked by phase (complete years only; the current partial year is in the table's notes). The table below lists the same counts, most recent years first.

Trials started per year
Year Trials started
2026 (partial year) 4
2025 9
2024 7
2023 8
2022 5
2021 7
2020 5
2019 3
2018 9
2017 7

Forecast of the full-year count, planned starts included, not rows of this table: about 6 trials starting in 2026 and about 8 in 2027, the average of the 24 months through September, counted as registered and carried forward. The rows of this table count trials registered so far with a start date in the year, planned starts included; the forecast looks ahead to the count for the whole year, so it is not the same measure. In backtests on conditions of this size, forecasts made part-way through the year were typically off by about 28 percent and ran about 20 percent low against the count later registered; forecasts made before the year began were off by about 39 percent and ran about 37 percent low against the count later registered. These figures rest on a few years of history (target years from 2018 to 2025, varying by figure), place each condition as it is mapped today rather than as it was then, and score against a count for the newest year that was still being revised. Only condition series were scored.

Recruitment duration, a model prediction: 4 trials still running at the 2026-10-09 snapshot, fewer than the 5 needed for a median. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Delayed Emergence from Anesthesia trials in? (7)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 1
Phase 1/2 1
Phase 2 4
Phase 3 1
Phase 4 22
Not applicable 30
Observational 36

How many Delayed Emergence from Anesthesia trials are recruiting? (9)

Shown in this order: the order a trial moves through, from not yet recruiting to unknown.

Trials by recruitment status
Status Trials
Not yet recruiting 6
Recruiting 6
Enrolling by invitation 1
Active, not recruiting 3
Completed 61

Status as registered on ClinicalTrials.gov. Each trial is counted once.

Which drugs are being tested for Delayed Emergence from Anesthesia? (5)

Shown in this order: most trials first. One row per drug, matched to a single molecule under all its names, ranked by number of trials.

Drugs tested
Drug Trials
Neostigmine 15
Esmeron 5
PROPOFOL 3
pipecuronium bromide 2
Desflurane 2

Interventions as named in the registry (10)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
Sugamadex 17
NMBA - cisatracurium 4
1% Sevoflurane 2
Dexamethasone/Dexamethasone acetate 2
0.6% isoflurane 1

These are the names sponsors entered on ClinicalTrials.gov that we have not matched to a single molecule. Some are drugs under a brand or code name; others are procedures, doses or arm labels.

Which serious adverse events do Delayed Emergence from Anesthesia trials report? (10)

Shown in this order: most subjects affected first. Subjects affected summed across trials, a cross-trial signal, not a rate.

Serious adverse events in this condition's trials
Adverse event Subjects affected Trials
Mild QTc prolongation 22 1
Arrhythmias 14 1
Kidney graft dysfunction 3 1
Reoperation for bleeding 2 1
Bigeminy 1 1

Which publications cover Delayed Emergence from Anesthesia? (44)

Shown in this order: major-topic papers first, then newest, then most linked to trials.

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: lead sponsors, prevalence, rare-disease identity, and sub-conditions in mesh.

Browse all condition evidence pages