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  1. Home
  2. /Data
  3. /Clinical trials
  4. /Conditions
  5. /Stroke
  6. /Cancellation Test

Clinical trials data

Cancellation Test in stroke trials: 75 registered studies

Every registered stroke study on ClinicalTrials.gov that names the Cancellation Test in an outcome measure: how often it is a primary outcome, the tests named with it, how large the studies are and when they measure it.

Registered stroke studies name it in an outcome measure
75
Name it in a primary outcome, 36%
27 of 75
Of the condition's 1,233 studies name it, against 2% of all registered studies
6%
Other conditions
Median participants per study
39
By phase
Try the Cancellation Test

Tests named in the same studies

The library tests that stroke studies naming the Cancellation Test name most often beside it.
  1. 1

    Line Bisection Test27 studies, 10 as a primary outcome

  2. 2

    Trail Making Test12 studies, 2 as a primary outcome

  3. 3

    Digit Span Test9 studies, 4 as a primary outcome

  4. 4

    Verbal Fluency9 studies, 2 as a primary outcome

  5. 5

    Stroop Color-Word Test8 studies, 2 as a primary outcome

  6. 6

    Picture Naming Test5 studies, 0 as a primary outcome

  7. 7

    Symbol Coding3 studies, 1 as a primary outcome

  8. 8

    Token Commands Task3 studies, 1 as a primary outcome

  9. 9

    Verbal Learning3 studies, 1 as a primary outcome

  10. 10

    Card Sorting Test (Berg)2 studies, 1 as a primary outcome

A test as a primary outcomeOnly in secondary or other outcomes

Studies by start year

Each study counted once. 2026 is partly planned starts.
02000: 0 studies, 0 with a test as a primary outcome20002001: 0 studies, 0 with a test as a primary outcome2002: 0 studies, 0 with a test as a primary outcome2003: 0 studies, 0 with a test as a primary outcome2004: 0 studies, 0 with a test as a primary outcome2005: 0 studies, 0 with a test as a primary outcome20052006: 1 studies, 0 with a test as a primary outcome2007: 0 studies, 0 with a test as a primary outcome2008: 1 studies, 0 with a test as a primary outcome2009: 3 studies, 0 with a test as a primary outcome2010: 2 studies, 1 with a test as a primary outcome20102011: 2 studies, 2 with a test as a primary outcome2012: 2 studies, 2 with a test as a primary outcome2013: 0 studies, 0 with a test as a primary outcome2014: 4 studies, 0 with a test as a primary outcome2015: 4 studies, 1 with a test as a primary outcome20152016: 3 studies, 1 with a test as a primary outcome2017: 4 studies, 2 with a test as a primary outcome2018: 3 studies, 1 with a test as a primary outcome2019: 4 studies, 3 with a test as a primary outcome2020: 4 studies, 1 with a test as a primary outcome20202021: 6 studies, 2 with a test as a primary outcome2022: 5 studies, 3 with a test as a primary outcome2023: 7 studies, 2 with a test as a primary outcome2024: 6 studies, 1 with a test as a primary outcome2025: 8 studies, 2 with a test as a primary outcome20252026: 6 studies, 3 with a test as a primary outcome

A test as a primary outcomeOnly in secondary or other outcomes

Show as a table
Registered studies by start year
Start yearStudiesA test as a primary outcome
200000
200100
200200
200300
200400
200500
200610
200700
200810
200930
201021
201122
201222
201300
201440
201541
201631
201742
201831
201943
202041
202162
202253
202372
202461
202582
202663

Phases and study sizes

By phase

  • Early phase 11 studies, 0 as a primary outcome
  • Phase 1/21 studies, 0 as a primary outcome
  • Phase 26 studies, 1 as a primary outcome
  • Phase 33 studies, 3 as a primary outcome
  • Phase 41 studies, 0 as a primary outcome
  • Not applicable49 studies, 18 as a primary outcome
  • Observational14 studies, 5 as a primary outcome

Participants per study

102050100200
  • Not applicable30 median, 18 to 50
  • Observational50 median, 41 to 176
Participants per study. The bar spans the middle half of the studies in each phase, the mark is the median, and the axis is logarithmic. Phases with fewer than 10 studies that give a size are left out.
Show as a table
Participants per stroke study that names the Cancellation Test, by phase
PhaseStudies with a sizeMedianMiddle half
Not applicable463018 to 50
Observational145041 to 176

When stroke trials measure it

Half of the primary outcomes that name the Cancellation Test are measured within 4 weeks of the start, and the middle half from 2 weeks to 8 weeks. 25 primary outcomes give a duration.

Latest time point of each outcome

  • Within a day6 outcomes, 3 as a primary outcome
  • Up to 4 weeks24 outcomes, 14 as a primary outcome
  • 1 to 3 months21 outcomes, 3 as a primary outcome
  • 3 to 6 months13 outcomes, 4 as a primary outcome
  • 6 to 12 months1 outcomes, 1 as a primary outcome
  • Over 2 years1 outcomes, 0 as a primary outcome
  • No duration given9 outcomes, 2 as a primary outcome

A test as a primary outcomeOnly in secondary or other outcomes

66 of the 75 outcome measures give a duration. A single visit counts as within a day.

Status, results, interventions and countries

Status

  • Recruiting11 studies, 4 as a primary outcome
  • Not yet recruiting8 studies, 4 as a primary outcome
  • Active, not recruiting2 studies, 0 as a primary outcome
  • Completed30 studies, 12 as a primary outcome
  • Stopped early10 studies, 1 as a primary outcome
  • Status unknown14 studies, 6 as a primary outcome

What they test

  • Behavioral20 studies, 8 as a primary outcome
  • Drug10 studies, 2 as a primary outcome
  • Device21 studies, 6 as a primary outcome
  • Procedure3 studies, 1 as a primary outcome
  • Diagnostic test2 studies, 1 as a primary outcome
  • Other26 studies, 11 as a primary outcome
  • None given6 studies, 2 as a primary outcome

Intervention types as registered. A study can list several; observational studies often list none.

Where their sites are

  • United States12 studies, 2 as a primary outcome
  • Belgium10 studies, 3 as a primary outcome
  • Italy10 studies, 5 as a primary outcome
  • Canada6 studies, 0 as a primary outcome
  • United Kingdom5 studies, 2 as a primary outcome
  • France4 studies, 2 as a primary outcome
  • India4 studies, 1 as a primary outcome
  • South Korea4 studies, 1 as a primary outcome
  • Türkiye4 studies, 1 as a primary outcome
  • Portugal3 studies, 1 as a primary outcome
  • Switzerland3 studies, 0 as a primary outcome
  • Germany2 studies, 1 as a primary outcome

29 countries in all. A study with sites in several counts in each; 4 list no site.

Reported results

Completed studies with results posted on ClinicalTrials.gov, a results paper the registry links to the study, or both.

Completed stroke studies that name the Cancellation Test: 11 of 30, 37%

Every completed study with a cognitive outcome: 3,626 of 7,953, 46%

Completed stroke studies that name the Cancellation Test and every completed study, by how they reported results
ResultsCompleted stroke studies that name the Cancellation TestEvery completed study
Results on ClinicalTrials.gov and a paper2, 7%776, 10%
Results on ClinicalTrials.gov only2, 7%1,139, 14%
A results paper only7, 23%1,711, 22%
Neither19, 63%4,327, 54%

The 75 studies

Filter by phase, sponsor, status, country, intervention, outcome list, size and start year. Each study links to its record on ClinicalTrials.gov.
ConditionStroke
TestThe Cancellation Test

75 studies match. 27 name the Cancellation Test in a primary outcome. Median size 39 participants. Median time to the primary outcome: 4 weeks.

Loading 75 studies; the filters turn on when they arrive.

By start year
024682000: 0 studies, 0 naming the Cancellation Test in a primary outcome20002001: 0 studies, 0 naming the Cancellation Test in a primary outcome2002: 0 studies, 0 naming the Cancellation Test in a primary outcome2003: 0 studies, 0 naming the Cancellation Test in a primary outcome2004: 0 studies, 0 naming the Cancellation Test in a primary outcome2005: 0 studies, 0 naming the Cancellation Test in a primary outcome20052006: 1 studies, 0 naming the Cancellation Test in a primary outcome2007: 0 studies, 0 naming the Cancellation Test in a primary outcome2008: 1 studies, 0 naming the Cancellation Test in a primary outcome2009: 3 studies, 0 naming the Cancellation Test in a primary outcome2010: 2 studies, 1 naming the Cancellation Test in a primary outcome20102011: 2 studies, 2 naming the Cancellation Test in a primary outcome2012: 2 studies, 2 naming the Cancellation Test in a primary outcome2013: 0 studies, 0 naming the Cancellation Test in a primary outcome2014: 4 studies, 0 naming the Cancellation Test in a primary outcome2015: 4 studies, 1 naming the Cancellation Test in a primary outcome20152016: 3 studies, 1 naming the Cancellation Test in a primary outcome2017: 4 studies, 2 naming the Cancellation Test in a primary outcome2018: 3 studies, 1 naming the Cancellation Test in a primary outcome2019: 4 studies, 3 naming the Cancellation Test in a primary outcome2020: 4 studies, 1 naming the Cancellation Test in a primary outcome20202021: 6 studies, 2 naming the Cancellation Test in a primary outcome2022: 5 studies, 3 naming the Cancellation Test in a primary outcome2023: 7 studies, 2 naming the Cancellation Test in a primary outcome2024: 6 studies, 1 naming the Cancellation Test in a primary outcome2025: 8 studies, 2 naming the Cancellation Test in a primary outcome20252026: 6 studies, 3 naming the Cancellation Test in a primary outcome

2026 is partly planned starts.

Show as a table
Matching studies by start year
Start yearStudiesAs a primary outcome
200000
200100
200200
200300
200400
200500
200610
200700
200810
200930
201021
201122
201222
201300
201440
201541
201631
201742
201831
201943
202041
202162
202253
202372
202461
202582
202663

Library tests named most

  • Cancellation Test75 studies, 27 as a primary outcome
  • Line Bisection Test27 studies, 10 as a primary outcome
  • Trail Making Test12 studies, 2 as a primary outcome
  • Digit Span Test9 studies, 4 as a primary outcome
  • Verbal Fluency9 studies, 2 as a primary outcome
  • Stroop Color-Word Test8 studies, 2 as a primary outcome
  • Picture Naming Test5 studies, 0 as a primary outcome
  • Symbol Coding3 studies, 1 as a primary outcome
  • Token Commands Task3 studies, 1 as a primary outcome
  • Verbal Learning3 studies, 1 as a primary outcome

Conditions

  • Stroke75 studies, 27 as a primary outcome
  • Brain injury and concussion5 studies, 2 as a primary outcome
  • Dementia and Alzheimer's1 study, 1 as a primary outcome
  • Depression and bipolar disorder1 study, 0 as a primary outcome
  • Healthy volunteers1 study, 1 as a primary outcome
  • Anxiety, PTSD and OCD1 study, 0 as a primary outcome
  • Pain and fatigue1 study, 0 as a primary outcome
  • Cardiovascular disease1 study, 0 as a primary outcome

Phases

Participants

Lead sponsor: industry 6, other 69. Interventional 61, observational 14.

As a primary outcomeSecondary or other outcomeThe Cancellation Test

The studies, newest registration first

Each number opens the study's record on ClinicalTrials.gov.

Registered studies that match the filters, newest registration first, with the library tests each one names and the outcome list that names them.
StudyStartPhaseConditionsParticipantsLead sponsorStatusLibrary tests named, with the latest time point
NCT07819266Start2026PhaseNot applicableConditionsStrokeParticipants42Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Cancellation TestSecondary4 weeks
NCT07589855Start2025PhaseNot applicableConditionsStrokeParticipants6Lead sponsorOtherStatusRecruitingLibrary tests named
  • Cancellation TestPrimarysame day
NCT07586566Start2026PhaseNot applicableConditionsStroke, Brain injury and concussionParticipants15Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Digit Span TestPrimary3 weeks
  • Continuous Performance TestPrimary3 weeks
  • Cancellation TestPrimary3 weeks
NCT07538076Start2026PhaseObservationalConditionsStrokeParticipants105Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Cancellation TestPrimary
  • Line Bisection TestPrimary
NCT07507383Start2024PhaseNot applicableConditionsStrokeParticipants18Lead sponsorOtherStatusCompletedLibrary tests named
  • Cancellation TestSecondary
  • Line Bisection TestPrimary
NCT07480122Start2026PhaseObservationalConditionsStrokeParticipants50Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Cancellation TestPrimary
  • Line Bisection TestPrimary
NCT07374276Start2026PhaseNot applicableConditionsStrokeParticipants12Lead sponsorOtherStatusActive, not recruitingLibrary tests named
  • Cancellation TestOther outcome15 weeks
NCT07322614Start2021PhaseNot applicableConditionsStrokeParticipants60Lead sponsorOtherStatusCompleted

Paper

Library tests named
  • Stroop Color-Word TestPrimary6 months
  • Digit Span TestPrimary6 months
  • Category FluencyPrimary6 months
  • Cancellation TestPrimary6 months
  • Corsi Block-Tapping TestPrimary6 months
  • Line Bisection TestPrimary6 months
NCT07290218Start2026PhaseObservationalConditionsStroke, Brain injury and concussionParticipants15Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Cancellation TestSecondary3 weeks
  • Line Bisection TestSecondary3 weeks
NCT07102927Start2022PhaseNot applicableConditionsStrokeParticipants28Lead sponsorOtherStatusRecruitingLibrary tests named
  • Cancellation TestSecondary7 weeks
  • Line Bisection TestSecondary7 weeks
NCT07017140Start2025PhaseNot applicableConditionsStroke, Brain injury and concussionParticipants30Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Cancellation TestSecondary5 months
NCT07010536Start2025PhaseNot applicableConditionsStrokeParticipants30Lead sponsorOtherStatusCompletedLibrary tests named
  • Digit Span TestPrimary6 weeks
  • Card Sorting Test (Berg)Primary6 weeks
  • Cancellation TestSecondary6 weeks
NCT06999473Start2025PhaseNot applicableConditionsStrokeParticipants30Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Cancellation TestPrimary4 weeks
  • Line Bisection TestSecondary4 weeks
NCT06965673Start2023PhaseNot applicableConditionsStrokeParticipants30Lead sponsorOtherStatusRecruitingLibrary tests named
  • Trail Making TestPrimary4 weeks
  • Cancellation TestPrimary4 weeks
NCT06931795Start2025PhaseNot applicableConditionsStrokeParticipants40Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Cancellation TestSecondary13 weeks
NCT06852209Start2025PhaseNot applicableConditionsStrokeParticipants20Lead sponsorOtherStatusRecruitingLibrary tests named
  • Trail Making TestSecondary6 weeks
  • Stroop Color-Word TestSecondary6 weeks
  • Verbal FluencySecondary6 weeks
  • Symbol CodingSecondary6 weeks
  • Cancellation TestSecondary6 weeks
NCT06804304Start2025PhaseNot applicableConditionsStroke, Depression and bipolar disorder, Anxiety, PTSD and OCDParticipants100Lead sponsorOtherStatusRecruitingLibrary tests named
  • Verbal FluencyPrimary13 weeks
  • Digit Span TestPrimary13 weeks
  • Short Story RecallSecondary6 months
  • Cancellation TestSecondary6 months
  • Sustained Attention to ResponsePrimary13 weeks
  • Simon TaskPrimary13 weeks
NCT06747676Start2025PhasePhase 1/2ConditionsStrokeParticipants28Lead sponsorOtherStatusStopped earlyLibrary tests named
  • Cancellation TestSecondarysame day
  • Line Bisection TestSecondarysame day
NCT06690125Start2018PhaseObservationalConditionsStrokeParticipants36Lead sponsorOtherStatusCompletedLibrary tests named
  • Cancellation TestSecondary
  • Line Bisection TestSecondary
NCT06646003Start2024PhaseObservationalConditionsStrokeParticipants341Lead sponsorOtherStatusCompletedLibrary tests named
  • Cancellation TestSecondary4 weeks
NCT06483230Start2024PhaseNot applicableConditionsStroke, Cardiovascular diseaseParticipants25Lead sponsorOtherStatusRecruitingLibrary tests named
  • Cancellation TestOther outcome5 months
  • Line Bisection TestOther outcome5 months
NCT06441552Start2024PhaseObservationalConditionsStrokeParticipants200Lead sponsorOtherStatusRecruitingLibrary tests named
  • Cancellation TestSecondary3 weeks
  • Antisaccade TaskSecondary12 months
NCT06382558Start2024PhaseObservationalConditionsStrokeParticipants44Lead sponsorOtherStatusCompletedLibrary tests named
  • Cancellation TestSecondarysame day
NCT06366360Start2024PhaseNot applicableConditionsStrokeParticipants80Lead sponsorOtherStatusRecruitingLibrary tests named
  • Cancellation TestPrimary8 weeks
NCT06291480Start2023PhaseNot applicableConditionsStrokeParticipants16Lead sponsorOtherStatusStopped earlyLibrary tests named
  • Trail Making TestSecondary7 weeks
  • Stroop Color-Word TestSecondary7 weeks
  • Verbal FluencySecondary7 weeks
  • Digit Span TestSecondary7 weeks
  • Cancellation TestSecondary7 weeks

Page 1 of 3

Questions, answered from the data

How many stroke trials use the Cancellation Test?

75 registered stroke studies on ClinicalTrials.gov name it in an outcome measure, 27 of them in a primary outcome: 6% of the condition's 1,233 studies with a cognitive outcome, against 2% of all of them. It is the 6th most named test in stroke trials.

Which tests do stroke trials use with the Cancellation Test?

The Line Bisection Test (27 studies), the Trail Making Test (12 studies) and the Digit Span Test (9 studies).

When do stroke trials measure the Cancellation Test?

Half of the primary outcomes that name the Cancellation Test are measured within 4 weeks of the start, and the middle half from 2 weeks to 8 weeks. 25 primary outcomes give a duration.

How many completed stroke trials that use the Cancellation Test have reported results?

11 of the 30 completed studies that name it, 37%, have reported results: 4 posted them on ClinicalTrials.gov, 9 have a results paper linked to the registry record, and 2 did both. The other 19 show neither. Of all completed studies with a cognitive outcome, 46% have reported results.

More on the Cancellation Test and stroke

  • Every cognitive test in stroke trials: 1,233 studies
  • The Cancellation Test in all clinical trials: 253 studies

Other tests in stroke trials

  • Trail Making Test156
  • Verbal Fluency110
  • Stroop Color-Word Test105
  • Digit Span Test100
  • Picture Naming Test99
  • Verbal Learning63
  • Symbol Coding61

How the studies are counted

For each test family, the census runs ClinicalTrials.gov's own outcome search for the family's names and reads every study first posted by the day the family was counted. These studies were read on 10 November 2026. A study counts once on a page, however many tests it names. Counts for a test cover every version of the task under any of its names, so a page can count studies that used a commercial version.

The census adds two things to each record and changes nothing in it: which outcome list names the test (primary, then secondary, then other), and the condition groups, matched on the study's condition names and MeSH terms. A study can fall in several groups; one whose only condition is cognitive impairment or decline falls in “Cognitive impairment and decline”. Studies that name only instruments outside the library count in every total and share but are not listed.

A second read on 10 November 2026 added each study's overall status, whether results are posted, its intervention types, the countries of its sites and the time frame of the outcome that names each test. A time frame counts by the latest time point it names: “Baseline, 12 and 24 weeks” is 24 weeks, a single visit is within a day, and one that names no duration, such as “end of treatment”, is left out of the timings.

A third read on 10 November 2026 added the papers the registry links to each study: those its sponsor lists as reporting results, and those PubMed links to it through the study's NCT number. A study has a results paper when one of them came out in or after the month of its primary completion and PubMed does not class it as a protocol, review or comment. A paper that never gives the NCT number is not linked, so some studies counted as reporting neither did publish.

Source: ClinicalTrials.gov, a database of the U.S. National Library of Medicine, which does not endorse these pages. Every study line is in the data release 2.1.0, and the explorer's own file is clinical-trials-studies.json.

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