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Condition (MeSH)

Perceptual Disorders

ClinicalTrials.gov lists 3,317 trials for Perceptual Disorders or a narrower condition beneath it. Zagazig University has the most among industry and government lead sponsors, with 26.

MeSH D010468 Nervous System Diseases C10 C23
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Phase 1 Phase 1 108 Phase 1/2 Phase 1/2 28 Phase 2 Phase 2 173 Phase 2/3 Phase 2/3 52 Phase 3 Phase 3 215 Phase 4 Phase 4 444 Not applicable Not applicable 1,872 Observational Observational 424 Phase 1 Phase 1 108 Phase 1/2 Phase 1/2 28 Phase 2 Phase 2 173 Phase 2/3 Phase 2/3 52 Phase 3 Phase 3 215 Phase 4 Phase 4 444 Not applicable Not applicable 1,872 Observational Observational 424

Trials per phase (log scale)

1 more section with rows

66 of the 3,317 trials are tagged with Perceptual Disorders itself; the rest are tagged with a narrower condition beneath it.

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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 Perceptual Disorders trials start? (35)

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. 13 trials are registered to start in 2027 or later, and not listed here.

Trials over time, by phase

  • Phase 1
  • Phase 1/2
  • Phase 2
  • Phase 2/3
  • Phase 3
  • Phase 4
  • Not applicable
  • Observational
  • Other (Unknown)

Top of scale: 372

1992: 1 trials (Observational 1) 1993: 1 trials (Phase 2 1) 1994: 1 trials (Phase 2 1) 1995: 2 trials (Observational 1, Phase 2 1) 1996: 2 trials (Not applicable 2) 1997: 1 trials (Phase 2 1) 1998: 2 trials (Phase 3 1, Phase 1 1) 1999: 3 trials (Observational 1, Phase 2 1, Phase 1 1) 2000: 4 trials (Observational 1, Phase 3 1, Phase 2 1, Phase 1/2 1) 2001: 10 trials (Observational 2, Not applicable 3, Phase 4 2, Phase 2/3 1, Phase 2 2) 2002: 7 trials (Not applicable 4, Phase 4 1, Phase 3 1, Phase 2 1) 2003: 17 trials (Observational 3, Not applicable 8, Phase 4 2, Phase 3 1, Phase 2/3 1, Phase 2 2) 2004: 28 trials (Observational 2, Not applicable 9, Phase 4 3, Phase 3 5, Phase 2/3 1, Phase 2 7, Phase 1 1) 2005: 29 trials (Observational 2, Not applicable 8, Phase 4 5, Phase 3 3, Phase 2/3 1, Phase 2 5, Phase 1/2 2, Phase 1 3) 2006: 42 trials (Observational 5, Not applicable 12, Phase 4 8, Phase 3 11, Phase 2/3 1, Phase 2 3, Phase 1/2 1, Phase 1 1) 2007: 47 trials (Observational 1, Not applicable 11, Phase 4 14, Phase 3 7, Phase 2/3 1, Phase 2 9, Phase 1/2 1, Phase 1 3) 2008: 65 trials (Observational 9, Not applicable 23, Phase 4 11, Phase 3 8, Phase 2/3 3, Phase 2 3, Phase 1/2 1, Phase 1 7) 2009: 53 trials (Observational 7, Not applicable 23, Phase 4 7, Phase 3 5, Phase 2/3 2, Phase 2 6, Phase 1 3) 2010: 57 trials (Observational 7, Not applicable 27, Phase 4 7, Phase 3 3, Phase 2 6, Phase 1/2 2, Phase 1 5) 2011: 62 trials (Observational 10, Not applicable 20, Phase 4 14, Phase 3 10, Phase 2/3 1, Phase 2 6, Phase 1 1) 2012: 104 trials (Observational 19, Not applicable 38, Phase 4 23, Phase 3 15, Phase 2/3 2, Phase 2 3, Phase 1 4) 2013: 72 trials (Observational 6, Not applicable 32, Phase 4 12, Phase 3 6, Phase 2/3 3, Phase 2 9, Phase 1 4) 2014: 99 trials (Observational 12, Not applicable 44, Phase 4 24, Phase 3 6, Phase 2/3 1, Phase 2 8, Phase 1 4) 2015: 120 trials (Other 1, Observational 7, Not applicable 69, Phase 4 17, Phase 3 12, Phase 2/3 4, Phase 2 10) 2016: 113 trials (Observational 17, Not applicable 56, Phase 4 16, Phase 3 11, Phase 2 7, Phase 1/2 1, Phase 1 5) 2017: 143 trials (Observational 18, Not applicable 72, Phase 4 26, Phase 3 11, Phase 2/3 3, Phase 2 5, Phase 1/2 1, Phase 1 7) 2018: 153 trials (Observational 27, Not applicable 89, Phase 4 19, Phase 3 6, Phase 2 8, Phase 1/2 2, Phase 1 2) 2019: 163 trials (Observational 27, Not applicable 85, Phase 4 34, Phase 3 6, Phase 2/3 1, Phase 2 5, Phase 1/2 1, Phase 1 4) 2020: 171 trials (Observational 18, Not applicable 98, Phase 4 28, Phase 3 5, Phase 2/3 6, Phase 2 11, Phase 1/2 2, Phase 1 3) 2021: 251 trials (Observational 29, Not applicable 150, Phase 4 35, Phase 3 21, Phase 2/3 4, Phase 2 5, Phase 1/2 1, Phase 1 6) 2022: 252 trials (Observational 35, Not applicable 163, Phase 4 25, Phase 3 16, Phase 2/3 1, Phase 2 6, Phase 1/2 1, Phase 1 5) 2023: 236 trials (Observational 23, Not applicable 152, Phase 4 27, Phase 3 14, Phase 2/3 6, Phase 2 5, Phase 1 9) 2024: 299 trials (Observational 43, Not applicable 198, Phase 4 27, Phase 3 10, Phase 2/3 4, Phase 2 6, Phase 1/2 1, Phase 1 10) 2025: 372 trials (Observational 44, Not applicable 265, Phase 4 27, Phase 3 9, Phase 2/3 1, Phase 2 12, Phase 1/2 3, Phase 1 11)

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) 311
2025 372
2024 299
2023 236
2022 252
2021 251
2020 171
2019 163
2018 153
2017 143

Forecast of the full-year count, planned starts included, not rows of this table: about 370 trials starting in 2026 and about 360 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 13 percent and ran about 12 percent low against the count later registered; forecasts made before the year began were off by about 19 percent and ran about 17 percent low against the count later registered, and had about the same error as repeating last year's count. 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.

Prediction, not a registry value: median of 31 months from start to primary completion across 366 trials still running at the 2026-10-09 snapshot; registered median of 13 months across 2,012 trials with a primary completion typed Actual. Source: ClinicalTrials.gov / AACT (CTTI), public domain.

What phase are Perceptual Disorders trials in? (9)

Shown in this order: phase order.

Show the trials by phase as a table
Trials by phase
Phase Trials
Phase 1 108
Phase 1/2 28
Phase 2 173
Phase 2/3 52
Phase 3 215
Phase 4 444
Not applicable 1,872
Observational 424
Unknown 1

How many Perceptual Disorders 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 240
Recruiting 392
Enrolling by invitation 34
Active, not recruiting 81
Completed 1,835

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

Which lead sponsors run the most Perceptual Disorders trials? (4)

Shown in this order: most trials first. Lead sponsors the registry classes as industry, NIH, US federal, other government or network. A hospital or university the registry files as government can appear here. Sponsors it classes as academic or other are shown on the full page, because that class cannot separate an institution from a named investigator.

Lead sponsors
Sponsor Trials
Zagazig University 26
Pacira Pharmaceuticals, Inc 22
VA Office of Research and Development 19
Ankara Etlik City Hospital 15

Which drugs are being tested for Perceptual Disorders? (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
+/- Bupivacaine HCl 130
DEXMEDETOMIDINE 66
PMI-150 (intranasal ketamine) 65
FENTANYL 61
Oxycodone 38

Interventions as named in the registry (10)

Shown in this order: most trials first.

Interventions as named in the registry
Drug Trials
PO Morphine 89
A3: Acetaminophen (Tylenol caplets®, from Janssen-Cilag, S.A. de C.V.) 80
L:Lidocaine 51
Ropivacaine 2 % 46
Erector Spinae Plane Block 39

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 Perceptual Disorders 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
Hospitalization 206 1
Pain 26 3
Pneumonia 26 10
Bone pain 20 1
Hospitalizations unrelated to the study 20 1

Which publications cover Perceptual Disorders? (274)

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

Sub-conditions in MeSH (5)

MeSH descendants one level down with at least one trial, most trials first.

Not on this page

Not measured: delivery record.

Checked, with nothing recorded for this condition: prevalence and rare-disease identity.

Browse all condition evidence pages