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  1. Home
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  3. /Clinical trials
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  5. /Stroke
  6. /Picture Naming Test

Clinical trials data

Picture Naming Test in stroke trials: 99 registered studies

Every registered stroke study on ClinicalTrials.gov that names the Picture Naming 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
99
Name it in a primary outcome, 57%
56 of 99
Of the condition's 1,233 studies name it, against 3% of all registered studies
8%
Other conditions
Median participants per study
37
By phase
Try the Picture Naming Test

Tests named in the same studies

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

    Verbal Fluency26 studies, 12 as a primary outcome

  2. 2

    Trail Making Test16 studies, 6 as a primary outcome

  3. 3

    Verbal Learning12 studies, 6 as a primary outcome

  4. 4

    Category Fluency11 studies, 7 as a primary outcome

  5. 5

    Digit Span Test11 studies, 4 as a primary outcome

  6. 6

    Stroop Color-Word Test6 studies, 1 as a primary outcome

  7. 7

    Complex Figure Copy and Recall5 studies, 2 as a primary outcome

  8. 8

    Symbol Coding5 studies, 1 as a primary outcome

  9. 9

    Cancellation Test5 studies, 0 as a primary outcome

  10. 10

    Token Commands Task4 studies, 2 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: 1 studies, 1 with a test as a primary outcome2003: 0 studies, 0 with a test as a primary outcome2004: 2 studies, 2 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: 1 studies, 0 with a test as a primary outcome2008: 4 studies, 2 with a test as a primary outcome2009: 3 studies, 0 with a test as a primary outcome2010: 0 studies, 0 with a test as a primary outcome20102011: 2 studies, 1 with a test as a primary outcome2012: 4 studies, 2 with a test as a primary outcome2013: 5 studies, 3 with a test as a primary outcome2014: 3 studies, 3 with a test as a primary outcome2015: 7 studies, 4 with a test as a primary outcome20152016: 4 studies, 3 with a test as a primary outcome2017: 3 studies, 2 with a test as a primary outcome2018: 3 studies, 3 with a test as a primary outcome2019: 5 studies, 2 with a test as a primary outcome2020: 8 studies, 8 with a test as a primary outcome20202021: 7 studies, 4 with a test as a primary outcome2022: 8 studies, 5 with a test as a primary outcome2023: 9 studies, 4 with a test as a primary outcome2024: 4 studies, 2 with a test as a primary outcome2025: 10 studies, 2 with a test as a primary outcome20252026: 3 studies, 2 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
200211
200300
200422
200500
200610
200710
200842
200930
201000
201121
201242
201353
201433
201574
201643
201732
201833
201952
202088
202174
202285
202394
202442
2025102
202632

Phases and study sizes

By phase

  • Phase 11 studies, 1 as a primary outcome
  • Phase 1/23 studies, 1 as a primary outcome
  • Phase 213 studies, 8 as a primary outcome
  • Phase 35 studies, 1 as a primary outcome
  • Not applicable69 studies, 42 as a primary outcome
  • Observational8 studies, 3 as a primary outcome

Participants per study

102050100
  • Phase 230 median, 25 to 40
  • Not applicable33 median, 18 to 59
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 Picture Naming Test, by phase
PhaseStudies with a sizeMedianMiddle half
Phase 2133025 to 40
Not applicable683318 to 59

When stroke trials measure it

Half of the primary outcomes that name the Picture Naming Test are measured within 6 weeks of the start, and the middle half from 2 weeks to 13 weeks. 53 primary outcomes give a duration.

Latest time point of each outcome

  • Within a day3 outcomes, 1 as a primary outcome
  • Up to 4 weeks33 outcomes, 23 as a primary outcome
  • 1 to 3 months35 outcomes, 17 as a primary outcome
  • 3 to 6 months8 outcomes, 6 as a primary outcome
  • 6 to 12 months9 outcomes, 5 as a primary outcome
  • 1 to 2 years1 outcomes, 0 as a primary outcome
  • Over 2 years3 outcomes, 1 as a primary outcome
  • No duration given7 outcomes, 3 as a primary outcome

A test as a primary outcomeOnly in secondary or other outcomes

92 of the 99 outcome measures give a duration. A single visit counts as within a day.

Status, results, interventions and countries

Status

  • Recruiting20 studies, 10 as a primary outcome
  • Not yet recruiting9 studies, 3 as a primary outcome
  • Active, not recruiting1 studies, 0 as a primary outcome
  • Completed45 studies, 31 as a primary outcome
  • Stopped early13 studies, 7 as a primary outcome
  • Status unknown11 studies, 5 as a primary outcome

What they test

  • Behavioral46 studies, 30 as a primary outcome
  • Drug11 studies, 3 as a primary outcome
  • Device39 studies, 27 as a primary outcome
  • Dietary supplement1 studies, 1 as a primary outcome
  • Procedure9 studies, 5 as a primary outcome
  • Diagnostic test1 studies, 0 as a primary outcome
  • Radiation1 studies, 0 as a primary outcome
  • Combination product1 studies, 1 as a primary outcome
  • Genetic1 studies, 0 as a primary outcome
  • Other10 studies, 3 as a primary outcome
  • None given2 studies, 1 as a primary outcome

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

Where their sites are

  • United States43 studies, 28 as a primary outcome
  • Canada8 studies, 3 as a primary outcome
  • China5 studies, 0 as a primary outcome
  • South Korea5 studies, 3 as a primary outcome
  • Switzerland5 studies, 2 as a primary outcome
  • Belgium4 studies, 3 as a primary outcome
  • Germany3 studies, 2 as a primary outcome
  • India3 studies, 1 as a primary outcome
  • Poland3 studies, 2 as a primary outcome
  • Sweden3 studies, 0 as a primary outcome
  • France2 studies, 1 as a primary outcome
  • Hong Kong2 studies, 2 as a primary outcome

20 countries in all. A study with sites in several counts in each; 8 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 Picture Naming Test: 19 of 45, 42%

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

Completed stroke studies that name the Picture Naming Test and every completed study, by how they reported results
ResultsCompleted stroke studies that name the Picture Naming TestEvery completed study
Results on ClinicalTrials.gov and a paper3, 7%776, 10%
Results on ClinicalTrials.gov only9, 20%1,139, 14%
A results paper only7, 16%1,711, 22%
Neither26, 58%4,327, 54%

The 99 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 Picture Naming Test

99 studies match. 56 name the Picture Naming Test in a primary outcome. Median size 37 participants. Median time to the primary outcome: 6 weeks.

Loading 99 studies; the filters turn on when they arrive.

By start year
02.557.5102000: 0 studies, 0 naming the Picture Naming Test in a primary outcome20002001: 0 studies, 0 naming the Picture Naming Test in a primary outcome2002: 1 studies, 1 naming the Picture Naming Test in a primary outcome2003: 0 studies, 0 naming the Picture Naming Test in a primary outcome2004: 2 studies, 2 naming the Picture Naming Test in a primary outcome2005: 0 studies, 0 naming the Picture Naming Test in a primary outcome20052006: 1 studies, 0 naming the Picture Naming Test in a primary outcome2007: 1 studies, 0 naming the Picture Naming Test in a primary outcome2008: 4 studies, 2 naming the Picture Naming Test in a primary outcome2009: 3 studies, 0 naming the Picture Naming Test in a primary outcome2010: 0 studies, 0 naming the Picture Naming Test in a primary outcome20102011: 2 studies, 1 naming the Picture Naming Test in a primary outcome2012: 4 studies, 2 naming the Picture Naming Test in a primary outcome2013: 5 studies, 3 naming the Picture Naming Test in a primary outcome2014: 3 studies, 3 naming the Picture Naming Test in a primary outcome2015: 7 studies, 4 naming the Picture Naming Test in a primary outcome20152016: 4 studies, 3 naming the Picture Naming Test in a primary outcome2017: 3 studies, 2 naming the Picture Naming Test in a primary outcome2018: 3 studies, 3 naming the Picture Naming Test in a primary outcome2019: 5 studies, 2 naming the Picture Naming Test in a primary outcome2020: 8 studies, 8 naming the Picture Naming Test in a primary outcome20202021: 7 studies, 4 naming the Picture Naming Test in a primary outcome2022: 8 studies, 5 naming the Picture Naming Test in a primary outcome2023: 9 studies, 4 naming the Picture Naming Test in a primary outcome2024: 4 studies, 2 naming the Picture Naming Test in a primary outcome2025: 10 studies, 2 naming the Picture Naming Test in a primary outcome20252026: 3 studies, 2 naming the Picture Naming Test in a primary outcome

2026 is partly planned starts. Not shown: 2 planned to start after 2026.

Show as a table
Matching studies by start year
Start yearStudiesAs a primary outcome
200000
200100
200211
200300
200422
200500
200610
200710
200842
200930
201000
201121
201242
201353
201433
201574
201643
201732
201833
201952
202088
202174
202285
202394
202442
2025102
202632

Library tests named most

  • Picture Naming Test99 studies, 56 as a primary outcome
  • Verbal Fluency26 studies, 12 as a primary outcome
  • Trail Making Test16 studies, 6 as a primary outcome
  • Verbal Learning12 studies, 6 as a primary outcome
  • Category Fluency11 studies, 7 as a primary outcome
  • Digit Span Test11 studies, 4 as a primary outcome
  • Stroop Color-Word Test6 studies, 1 as a primary outcome
  • Complex Figure Copy and Recall5 studies, 2 as a primary outcome
  • Symbol Coding5 studies, 1 as a primary outcome
  • Cancellation Test5 studies, 0 as a primary outcome

Conditions

  • Stroke99 studies, 56 as a primary outcome
  • Cardiovascular disease4 studies, 2 as a primary outcome
  • Brain injury and concussion2 studies, 2 as a primary outcome
  • Parkinson's disease1 study, 0 as a primary outcome
  • Depression and bipolar disorder1 study, 0 as a primary outcome
  • Healthy volunteers1 study, 0 as a primary outcome
  • Anxiety, PTSD and OCD1 study, 1 as a primary outcome
  • Delirium, surgery and intensive care1 study, 0 as a primary outcome
  • Epilepsy1 study, 1 as a primary outcome

Phases

Participants

Lead sponsor: industry 6, other 93. Interventional 91, observational 8.

As a primary outcomeSecondary or other outcomeThe Picture Naming 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
NCT07759375Start2027PhaseNot applicableConditionsStrokeParticipants48Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Verbal FluencyPrimary7 months
  • Picture Naming TestPrimary7 months
NCT07608588Start2026PhaseNot applicableConditionsStrokeParticipants45Lead sponsorOtherStatusRecruitingLibrary tests named
  • Trail Making TestSecondary4 weeks
  • Digit Span TestSecondary4 weeks
  • Picture Naming TestPrimary4 weeks
  • Eriksen Flanker TaskSecondary4 weeks
NCT07547800Start2026PhaseNot applicableConditionsStroke, Healthy volunteersParticipants109Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Picture Naming TestOther outcome
NCT07519317Start2027PhaseNot applicableConditionsStrokeParticipants90Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Picture Naming TestOther outcomesame day
NCT07510464Start2019PhaseNot applicableConditionsStrokeParticipants11Lead sponsorIndustryStatusCompletedLibrary tests named
  • Picture Naming TestPrimary6 weeks
NCT07496645Start2026PhasePhase 3ConditionsStrokeParticipants28Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Picture Naming TestPrimary5 days
NCT07397923Start2025PhasePhase 2ConditionsStrokeParticipants20Lead sponsorOtherStatusRecruitingLibrary tests named
  • Picture Naming TestSecondary2 weeks
NCT07353879Start2024PhaseNot applicableConditionsStrokeParticipants6Lead sponsorOtherStatusCompletedLibrary tests named
  • Picture Naming TestPrimary12 months
NCT07346378Start2025PhaseNot applicableConditionsStrokeParticipants40Lead sponsorOtherStatusRecruitingLibrary tests named
  • Verbal FluencyPrimary4 weeks
  • Category FluencyPrimary4 weeks
  • Picture Naming TestSecondary4 weeks
NCT07323823Start2025PhaseNot applicableConditionsStrokeParticipants66Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Picture Naming TestSecondary4 weeks
NCT07281313Start2025PhaseNot applicableConditionsStrokeParticipants120Lead sponsorOtherStatusRecruitingLibrary tests named
  • Trail Making TestSecondary1 week
  • Stroop Color-Word TestSecondary1 week
  • Verbal FluencySecondary1 week
  • Digit Span TestSecondary1 week
  • Picture Naming TestSecondary1 week
  • Simple Reaction TimeSecondary1 week
  • Design Fluency TestSecondary1 week
NCT07036406Start2025PhasePhase 2ConditionsStrokeParticipants40Lead sponsorOtherStatusRecruitingLibrary tests named
  • Picture Naming TestPrimary6 months
NCT07030985Start2025PhaseNot applicableConditionsStrokeParticipants55Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Verbal LearningSecondary12 months
  • Verbal FluencySecondary12 months
  • Symbol CodingSecondary12 months
  • Picture Naming TestSecondary12 months
  • Card Sorting Test (Berg)Secondary12 months
NCT06974279Start2025PhaseNot applicableConditionsStrokeParticipants50Lead sponsorOtherStatusRecruitingLibrary tests named
  • Picture Naming TestPrimary12 weeks
NCT06864442Start2021PhaseNot applicableConditionsStrokeParticipants60Lead sponsorOtherStatusCompletedLibrary tests named
  • Picture Naming TestPrimary4 weeks
NCT06822140Start2025PhaseNot applicableConditionsStrokeParticipants144Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Stroop Color-Word TestSecondary6 weeks
  • Verbal FluencySecondary6 weeks
  • Symbol CodingSecondary6 weeks
  • Go/No-Go TaskSecondary6 weeks
  • Category FluencySecondary6 weeks
  • Picture Naming TestSecondary6 weeks
NCT06740513Start2025PhaseObservationalConditionsStroke, Cardiovascular diseaseParticipants1,000Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Verbal FluencySecondary3 years
  • Picture Naming TestSecondary3 years
NCT06556316Start2020PhaseObservationalConditionsStroke, Brain injury and concussionParticipants200Lead sponsorOtherStatusStatus unknownLibrary tests named
  • Verbal LearningPrimary6 months
  • Verbal FluencyPrimary6 months
  • Category FluencyPrimary6 months
  • Picture Naming TestPrimary6 months
  • Vocabulary TestPrimary6 months
NCT06469619Start2024PhaseNot applicableConditionsStrokeParticipants130Lead sponsorOtherStatusNot yet recruitingLibrary tests named
  • Picture Naming TestPrimary5 weeks
NCT06403475Start2024PhaseNot applicableConditionsStrokeParticipants36Lead sponsorOtherStatusRecruitingLibrary tests named
  • Picture Naming TestSecondary12 weeks
NCT06213272Start2024PhaseNot applicableConditionsStrokeParticipants70Lead sponsorOtherStatusRecruitingLibrary tests named
  • Picture Naming TestSecondary10 weeks
NCT06096662Start2023PhaseNot applicableConditionsStrokeParticipants10Lead sponsorOtherStatusCompletedLibrary tests named
  • Picture Naming TestSecondary10 weeks
NCT06021470Start2023PhaseNot applicableConditionsStrokeParticipants64Lead sponsorOtherStatusStatus unknownLibrary tests named
  • Verbal LearningPrimary4 months
  • Verbal FluencyPrimary4 months
  • Digit Span TestPrimary4 months
  • Symbol CodingPrimary4 months
  • Picture Naming TestPrimary4 months
  • Complex Figure Copy and RecallPrimary4 months
NCT05953415Start2023PhaseNot applicableConditionsStrokeParticipants60Lead sponsorOtherStatusCompletedLibrary tests named
  • Trail Making TestSecondary3 weeks
  • Stroop Color-Word TestSecondary3 weeks
  • Digit Span TestSecondary3 weeks
  • Symbol CodingSecondary3 weeks
  • Picture Naming TestSecondary3 weeks
  • Clock Drawing TaskSecondary3 weeks
NCT05845047Start2023PhaseNot applicableConditionsStrokeParticipants70Lead sponsorOtherStatusRecruitingLibrary tests named
  • Picture Naming TestSecondary1 week

Page 1 of 4

Questions, answered from the data

How many stroke trials use the Picture Naming Test?

99 registered stroke studies on ClinicalTrials.gov name it in an outcome measure, 56 of them in a primary outcome: 8% of the condition's 1,233 studies with a cognitive outcome, against 3% of all of them. It is the 5th most named test in stroke trials.

Which tests do stroke trials use with the Picture Naming Test?

Verbal Fluency (26 studies), the Trail Making Test (16 studies) and Verbal Learning (12 studies).

How many participants do phase 2 stroke trials that use the Picture Naming Test enroll?

Half of the phase 2 studies that name it enroll 30 participants or fewer, and the middle half enroll 25 to 40. 13 of them give a size.

When do stroke trials measure the Picture Naming Test?

Half of the primary outcomes that name the Picture Naming Test are measured within 6 weeks of the start, and the middle half from 2 weeks to 13 weeks. 53 primary outcomes give a duration.

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

19 of the 45 completed studies that name it, 42%, have reported results: 12 posted them on ClinicalTrials.gov, 10 have a results paper linked to the registry record, and 3 did both. The other 26 show neither. Of all completed studies with a cognitive outcome, 46% have reported results.

More on the Picture Naming Test and stroke

  • Every cognitive test in stroke trials: 1,233 studies
  • The Picture Naming Test in all clinical trials: 466 studies

The Picture Naming Test in other conditions

  • Dementia and Alzheimer's104
  • Mild cognitive impairment71

Other tests in stroke trials

  • Trail Making Test156
  • Verbal Fluency110
  • Stroop Color-Word Test105
  • Digit Span Test100
  • Cancellation Test75
  • 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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