Clinical trials data

Stroop Color-Word Test in cancer trials: 65 registered studies

Every registered cancer study on ClinicalTrials.gov that names the Stroop Color-Word 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 cancer studies name it in an outcome measure: 65
Name it in a primary outcome, 51%: 33 of 65
Of the condition's 760 studies name it, against 12% of all registered studies: 9%; Other conditions
Median participants per study: 67; By phase

Try the Stroop Color-Word Test

Tests named in the same studies

The library tests that cancer studies naming the Stroop Color-Word Test name most often beside it.

1
Trail Making Test26 studies, 10 as a primary outcome
2
Verbal Learning25 studies, 13 as a primary outcome
3
Digit Span Test24 studies, 12 as a primary outcome
4
Verbal Fluency24 studies, 10 as a primary outcome
5
Continuous Performance Test14 studies, 9 as a primary outcome
6
Symbol Coding11 studies, 6 as a primary outcome
7
Category Fluency4 studies, 3 as a primary outcome
8
Card Sorting Test (Berg)4 studies, 2 as a primary outcome
9
Paced Visual Serial Addition Test4 studies, 2 as a primary outcome
10
Picture Naming Test4 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.

A test as a primary outcomeOnly in secondary or other outcomes

Show as a table

Registered studies by start year
Start year	Studies	A test as a primary outcome
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	0
2005	0	0
2006	0	0
2007	2	0
2008	0	0
2009	1	1
2010	1	0
2011	2	1
2012	2	2
2013	3	2
2014	0	0
2015	2	0
2016	5	1
2017	2	1
2018	0	0
2019	4	2
2020	4	3
2021	5	4
2022	2	2
2023	6	2
2024	10	5
2025	7	4
2026	5	3

Phases and study sizes

By phase

Phase 24 studies, 1 as a primary outcome
Phase 31 studies, 0 as a primary outcome
Phase 41 studies, 0 as a primary outcome
Not applicable43 studies, 22 as a primary outcome
Observational16 studies, 10 as a primary outcome

Participants per study

Not applicable60 median, 25 to 111
Observational90 median, 55 to 135

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 cancer study that names the Stroop Color-Word Test, by phase
Phase	Studies with a size	Median	Middle half
Not applicable	40	60	25 to 111
Observational	15	90	55 to 135

When cancer trials measure it

Half of the primary outcomes that name the Stroop Color-Word Test are measured within 4 months of the start, and the middle half from 6 weeks to 12 months. 32 primary outcomes give a duration.

Latest time point of each outcome

Within a day7 outcomes, 5 as a primary outcome
Up to 4 weeks5 outcomes, 3 as a primary outcome
1 to 3 months13 outcomes, 7 as a primary outcome
3 to 6 months13 outcomes, 4 as a primary outcome
6 to 12 months13 outcomes, 6 as a primary outcome
1 to 2 years5 outcomes, 3 as a primary outcome
Over 2 years8 outcomes, 4 as a primary outcome
No duration given1 outcomes, 1 as a primary outcome

A test as a primary outcomeOnly in secondary or other outcomes

64 of the 65 outcome measures give a duration. A single visit counts as within a day.

Status, results, interventions and countries

Status

Recruiting19 studies, 10 as a primary outcome
Not yet recruiting5 studies, 2 as a primary outcome
Active, not recruiting3 studies, 0 as a primary outcome
Completed23 studies, 14 as a primary outcome
Stopped early9 studies, 3 as a primary outcome
Status unknown6 studies, 4 as a primary outcome

What they test

Behavioral24 studies, 14 as a primary outcome
Drug7 studies, 1 as a primary outcome
Device12 studies, 6 as a primary outcome
Procedure5 studies, 1 as a primary outcome
Diagnostic test1 studies, 0 as a primary outcome
Biological1 studies, 0 as a primary outcome
Radiation4 studies, 1 as a primary outcome
Combination product1 studies, 0 as a primary outcome
Other21 studies, 11 as a primary outcome
None given5 studies, 4 as a primary outcome

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

22 countries in all. A study with sites in several counts in each; 2 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 cancer studies that name the Stroop Color-Word Test: 9 of 23, 39%

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

Completed cancer studies that name the Stroop Color-Word Test and every completed study, by how they reported results
Results	Completed cancer studies that name the Stroop Color-Word Test	Every completed study
Results on ClinicalTrials.gov and a paper	2, 9%	776, 10%
Results on ClinicalTrials.gov only	1, 4%	1,139, 14%
A results paper only	6, 26%	1,711, 22%
Neither	14, 61%	4,327, 54%

The 65 studies

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

65 studies match. 33 name the Stroop Color-Word Test in a primary outcome. Median size 67 participants. Median time to the primary outcome: 4 months.

Loading 65 studies; the filters turn on when they arrive.

By start year

2026 is partly planned starts. Not shown: 1 that started before 2000 and 1 planned to start after 2026.

Show as a table

Matching studies by start year
Start year	Studies	As a primary outcome
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	0
2005	0	0
2006	0	0
2007	2	0
2008	0	0
2009	1	1
2010	1	0
2011	2	1
2012	2	2
2013	3	2
2014	0	0
2015	2	0
2016	5	1
2017	2	1
2018	0	0
2019	4	2
2020	4	3
2021	5	4
2022	2	2
2023	6	2
2024	10	5
2025	7	4
2026	5	3

Library tests named most

Largest condition groups

Cancer65 studies, 33 as a primary outcome
Sleep and sleep disorders5 studies, 4 as a primary outcome
Depression and bipolar disorder4 studies, 2 as a primary outcome
Dementia and Alzheimer's3 studies, 1 as a primary outcome
Anxiety, PTSD and OCD2 studies, 1 as a primary outcome
Pain and fatigue2 studies, 1 as a primary outcome
Mild cognitive impairment1 study, 0 as a primary outcome
Multiple sclerosis1 study, 0 as a primary outcome
Healthy volunteers1 study, 0 as a primary outcome
Aging, frailty and exercise1 study, 0 as a primary outcome
Obesity and diabetes1 study, 0 as a primary outcome
Cardiovascular disease1 study, 0 as a primary outcome

Phases

Participants

Lead sponsor: NIH 1, other 64. Interventional 49, observational 16.

As a primary outcomeSecondary or other outcomeThe Stroop Color-Word 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.
Study	Start	Phase	Conditions	Participants	Lead sponsor	Status	Library tests named, with the latest time point
NCT07755839	Start2026	PhaseNot applicable	ConditionsDepression and bipolar disorder, Cancer, Anxiety, PTSD and OCD	Participants60	Lead sponsorOther	StatusNot yet recruiting	Library tests named Trail Making TestSecondary6 months Stroop Color-Word TestSecondary6 months Verbal FluencySecondary6 months Digit Span TestSecondary6 months Cancellation TestSecondary6 months
NCT07716306	Start2027	PhaseNot applicable	ConditionsCancer	Participants60	Lead sponsorOther	StatusNot yet recruiting	Library tests named Stroop Color-Word TestSecondary6 months Digit Span TestSecondary6 months Card Sorting Test (Berg)Secondary6 months
NCT07652476	Start2026	PhaseObservational	ConditionsCancer	Participants100	Lead sponsorOther	StatusNot yet recruiting	Library tests named Trail Making TestPrimarysame day Stroop Color-Word TestPrimarysame day Verbal LearningPrimarysame day Verbal FluencyPrimarysame day Digit Span TestPrimarysame day Symbol CodingPrimarysame day Picture Naming TestPrimarysame day Complex Figure Copy and RecallPrimarysame day Corsi Block-Tapping TestPrimarysame day
NCT07479927	Start2025	PhaseNot applicable	ConditionsCancer	Participants40	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimarysame day Verbal FluencyPrimarysame day Symbol CodingPrimarysame day Continuous Performance TestPrimarysame day Category FluencyPrimarysame day
NCT07331077	Start2026	PhaseNot applicable	ConditionsCancer	Participants10	Lead sponsorOther	StatusNot yet recruiting	Library tests named Stroop Color-Word TestPrimary6 months Verbal LearningPrimary6 months Continuous Performance TestPrimary6 months Choice Reaction TimePrimary6 months AX Continuous Performance TestWording unclear
NCT07191119	Start2026	PhaseNot applicable	ConditionsCancer, Sleep and sleep disorders	Participants40	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary8 weeks Continuous Performance TestPrimary8 weeks
NCT07173101	Start2025	PhasePhase 2	ConditionsCancer	Participants7	Lead sponsorOther	StatusStopped early	Library tests named Trail Making TestSecondary8 weeks Stroop Color-Word TestSecondary8 weeks
NCT07147621	Start2026	PhaseObservational	ConditionsCancer	Participants120	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestSecondary12 months Verbal LearningSecondary12 months Verbal FluencySecondary12 months Digit Span TestSecondary12 months
NCT06880861	Start2025	PhaseObservational	ConditionsCancer	Participants150	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary4 weeks Continuous Performance TestSecondary4 weeks
NCT06878469	Start2025	PhaseNot applicable	ConditionsCancer	Participants200	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary12 months Verbal FluencyPrimary12 months Digit Span TestPrimary12 months Task Switching TestPrimary12 months Complex Figure Copy and RecallPrimary12 months
NCT06828003	Start2025	PhaseNot applicable	ConditionsCancer	Participants30	Lead sponsorOther	StatusNot yet recruiting	Library tests named Stroop Color-Word TestSecondary8 weeks Verbal LearningSecondary8 weeks Vocabulary TestSecondary8 weeks Size Order Memory TestSecondary8 weeks Picture Order Memory TestSecondary8 weeks
NCT06727370	Start2024	PhaseObservational	ConditionsCancer, Lung disease	Participants200	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestPrimary12 months Stroop Color-Word TestPrimary12 months Verbal LearningPrimary12 months Verbal FluencyPrimary12 months Digit Span TestPrimary12 months Symbol CodingPrimary12 months Corsi Block-Tapping TestPrimary12 months
NCT06618339	Start2024	PhaseNot applicable	ConditionsDepression and bipolar disorder, Cancer, Anxiety, PTSD and OCD	Participants19	Lead sponsorOther	StatusCompleted	Library tests named Stroop Color-Word TestPrimary8 weeks Card Sorting Test (Berg)Primary8 weeks Tower of HanoiPrimary8 weeks
NCT06589544	Start2024	PhaseNot applicable	ConditionsDepression and bipolar disorder, Cancer	Participants100	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestSecondary6 months Stroop Color-Word TestSecondary6 months Verbal FluencySecondary6 months Digit Span TestSecondary6 months
NCT06553235	Start2024	PhaseNot applicable	ConditionsCancer, Sleep and sleep disorders	Participants84	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestSecondary8 months Stroop Color-Word TestSecondary8 months Verbal LearningSecondary8 months Verbal FluencySecondary8 months Digit Span TestSecondary8 months Symbol CodingSecondary8 months Continuous Performance TestPrimary8 months Psychomotor Vigilance TaskSecondary8 months Paced Visual Serial Addition TestSecondary8 months
NCT06468176	Start2024	PhaseNot applicable	ConditionsCancer	Participants187	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestSecondary12 months Stroop Color-Word TestSecondary12 months Verbal LearningSecondary12 months Verbal FluencySecondary12 months Digit Span TestSecondary12 months Symbol CodingSecondary12 months Task Switching TestSecondary12 months Delayed Recall ModuleSecondary12 months Recognition Memory TestSecondary12 months
NCT06419946	Start2025	PhasePhase 3	ConditionsCancer	Participants200	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestSecondary6 months Continuous Performance TestSecondary6 months Finger Tapping TaskSecondary6 months
NCT06312969	Start2023	PhaseNot applicable	ConditionsCancer	Participants56	Lead sponsorOther	StatusStatus unknown	Library tests named Stroop Color-Word TestPrimarysame day Verbal FluencyPrimarysame day
NCT06281145	Start2024	PhaseNot applicable	ConditionsCancer, Sleep and sleep disorders	Participants100	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary3 years Digit Span TestPrimary3 years
NCT06269536	Start2024	PhaseNot applicable	ConditionsCancer, Sleep and sleep disorders	Participants50	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary3 years Digit Span TestPrimary3 years
NCT06238882	Start2023	PhaseNot applicable	ConditionsCancer	Participants74	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestSecondary16 weeks
NCT06150976	Start2025	PhaseNot applicable	ConditionsCancer	Participants7	Lead sponsorOther	StatusCompleted	Library tests named Stroop Color-Word TestPrimary Continuous Performance TestPrimary
NCT06138015	Start2021	PhaseNot applicable	ConditionsCancer	Participants80	Lead sponsorOther	StatusCompleted Paper 1 Paper 2	Library tests named Stroop Color-Word TestPrimary12 weeks N-Back TaskPrimary12 weeks
NCT06112639	Start2024	PhaseNot applicable	ConditionsDementia and Alzheimer's, Mild cognitive impairment, Multiple sclerosis, Cancer	Participants192	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestSecondary6 months Stroop Color-Word TestSecondary6 months Verbal FluencySecondary6 months Symbol CodingSecondary6 months Category FluencySecondary6 months Selective Reminding TaskSecondary6 months Delayed Recall ModuleSecondary6 months
NCT06073717	Start2024	PhaseNot applicable	ConditionsCancer	Participants108	Lead sponsorOther	StatusActive, not recruiting	Library tests named Trail Making TestPrimary7 months Stroop Color-Word TestSecondary7 months

Questions, answered from the data

How many cancer trials use the Stroop Color-Word Test?

65 registered cancer studies on ClinicalTrials.gov name it in an outcome measure, 33 of them in a primary outcome: 9% of the condition's 760 studies with a cognitive outcome, against 12% of all of them. It is the 5th most named test in cancer trials.

Which tests do cancer trials use with the Stroop Color-Word Test?

The Trail Making Test (26 studies), Verbal Learning (25 studies) and the Digit Span Test (24 studies).

When do cancer trials measure the Stroop Color-Word Test?

Half of the primary outcomes that name the Stroop Color-Word Test are measured within 4 months of the start, and the middle half from 6 weeks to 12 months. 32 primary outcomes give a duration.

How many completed cancer trials that use the Stroop Color-Word Test have reported results?

9 of the 23 completed studies that name it, 39%, have reported results: 3 posted them on ClinicalTrials.gov, 8 have a results paper linked to the registry record, and 2 did both. The other 14 show neither. Of all completed studies with a cognitive outcome, 46% have reported results.

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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Clinical trials data

Stroop Color-Word Test in cancer trials: 65 registered studies

Registered cancer studies name it in an outcome measure: 65
Name it in a primary outcome, 51%: 33 of 65
Of the condition's 760 studies name it, against 12% of all registered studies: 9%; Other conditions
Median participants per study: 67; By phase

Try the Stroop Color-Word Test

Tests named in the same studies

The library tests that cancer studies naming the Stroop Color-Word Test name most often beside it.

1
Trail Making Test26 studies, 10 as a primary outcome
2
Verbal Learning25 studies, 13 as a primary outcome
3
Digit Span Test24 studies, 12 as a primary outcome
4
Verbal Fluency24 studies, 10 as a primary outcome
5
Continuous Performance Test14 studies, 9 as a primary outcome
6
Symbol Coding11 studies, 6 as a primary outcome
7
Category Fluency4 studies, 3 as a primary outcome
8
Card Sorting Test (Berg)4 studies, 2 as a primary outcome
9
Paced Visual Serial Addition Test4 studies, 2 as a primary outcome
10
Picture Naming Test4 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.

A test as a primary outcomeOnly in secondary or other outcomes

Show as a table

Registered studies by start year
Start year	Studies	A test as a primary outcome
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	0
2005	0	0
2006	0	0
2007	2	0
2008	0	0
2009	1	1
2010	1	0
2011	2	1
2012	2	2
2013	3	2
2014	0	0
2015	2	0
2016	5	1
2017	2	1
2018	0	0
2019	4	2
2020	4	3
2021	5	4
2022	2	2
2023	6	2
2024	10	5
2025	7	4
2026	5	3

Phases and study sizes

By phase

Phase 24 studies, 1 as a primary outcome
Phase 31 studies, 0 as a primary outcome
Phase 41 studies, 0 as a primary outcome
Not applicable43 studies, 22 as a primary outcome
Observational16 studies, 10 as a primary outcome

Participants per study

Not applicable60 median, 25 to 111
Observational90 median, 55 to 135

Show as a table

Participants per cancer study that names the Stroop Color-Word Test, by phase
Phase	Studies with a size	Median	Middle half
Not applicable	40	60	25 to 111
Observational	15	90	55 to 135

When cancer trials measure it

Half of the primary outcomes that name the Stroop Color-Word Test are measured within 4 months of the start, and the middle half from 6 weeks to 12 months. 32 primary outcomes give a duration.

Latest time point of each outcome

Within a day7 outcomes, 5 as a primary outcome
Up to 4 weeks5 outcomes, 3 as a primary outcome
1 to 3 months13 outcomes, 7 as a primary outcome
3 to 6 months13 outcomes, 4 as a primary outcome
6 to 12 months13 outcomes, 6 as a primary outcome
1 to 2 years5 outcomes, 3 as a primary outcome
Over 2 years8 outcomes, 4 as a primary outcome
No duration given1 outcomes, 1 as a primary outcome

A test as a primary outcomeOnly in secondary or other outcomes

64 of the 65 outcome measures give a duration. A single visit counts as within a day.

Status, results, interventions and countries

Status

Recruiting19 studies, 10 as a primary outcome
Not yet recruiting5 studies, 2 as a primary outcome
Active, not recruiting3 studies, 0 as a primary outcome
Completed23 studies, 14 as a primary outcome
Stopped early9 studies, 3 as a primary outcome
Status unknown6 studies, 4 as a primary outcome

What they test

Behavioral24 studies, 14 as a primary outcome
Drug7 studies, 1 as a primary outcome
Device12 studies, 6 as a primary outcome
Procedure5 studies, 1 as a primary outcome
Diagnostic test1 studies, 0 as a primary outcome
Biological1 studies, 0 as a primary outcome
Radiation4 studies, 1 as a primary outcome
Combination product1 studies, 0 as a primary outcome
Other21 studies, 11 as a primary outcome
None given5 studies, 4 as a primary outcome

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

22 countries in all. A study with sites in several counts in each; 2 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 cancer studies that name the Stroop Color-Word Test: 9 of 23, 39%

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

Completed cancer studies that name the Stroop Color-Word Test and every completed study, by how they reported results
Results	Completed cancer studies that name the Stroop Color-Word Test	Every completed study
Results on ClinicalTrials.gov and a paper	2, 9%	776, 10%
Results on ClinicalTrials.gov only	1, 4%	1,139, 14%
A results paper only	6, 26%	1,711, 22%
Neither	14, 61%	4,327, 54%

The 65 studies

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

65 studies match. 33 name the Stroop Color-Word Test in a primary outcome. Median size 67 participants. Median time to the primary outcome: 4 months.

Loading 65 studies; the filters turn on when they arrive.

By start year

2026 is partly planned starts. Not shown: 1 that started before 2000 and 1 planned to start after 2026.

Show as a table

Matching studies by start year
Start year	Studies	As a primary outcome
2000	0	0
2001	0	0
2002	0	0
2003	0	0
2004	0	0
2005	0	0
2006	0	0
2007	2	0
2008	0	0
2009	1	1
2010	1	0
2011	2	1
2012	2	2
2013	3	2
2014	0	0
2015	2	0
2016	5	1
2017	2	1
2018	0	0
2019	4	2
2020	4	3
2021	5	4
2022	2	2
2023	6	2
2024	10	5
2025	7	4
2026	5	3

Library tests named most

Largest condition groups

Cancer65 studies, 33 as a primary outcome
Sleep and sleep disorders5 studies, 4 as a primary outcome
Depression and bipolar disorder4 studies, 2 as a primary outcome
Dementia and Alzheimer's3 studies, 1 as a primary outcome
Anxiety, PTSD and OCD2 studies, 1 as a primary outcome
Pain and fatigue2 studies, 1 as a primary outcome
Mild cognitive impairment1 study, 0 as a primary outcome
Multiple sclerosis1 study, 0 as a primary outcome
Healthy volunteers1 study, 0 as a primary outcome
Aging, frailty and exercise1 study, 0 as a primary outcome
Obesity and diabetes1 study, 0 as a primary outcome
Cardiovascular disease1 study, 0 as a primary outcome

Phases

Participants

Lead sponsor: NIH 1, other 64. Interventional 49, observational 16.

As a primary outcomeSecondary or other outcomeThe Stroop Color-Word 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.
Study	Start	Phase	Conditions	Participants	Lead sponsor	Status	Library tests named, with the latest time point
NCT07755839	Start2026	PhaseNot applicable	ConditionsDepression and bipolar disorder, Cancer, Anxiety, PTSD and OCD	Participants60	Lead sponsorOther	StatusNot yet recruiting	Library tests named Trail Making TestSecondary6 months Stroop Color-Word TestSecondary6 months Verbal FluencySecondary6 months Digit Span TestSecondary6 months Cancellation TestSecondary6 months
NCT07716306	Start2027	PhaseNot applicable	ConditionsCancer	Participants60	Lead sponsorOther	StatusNot yet recruiting	Library tests named Stroop Color-Word TestSecondary6 months Digit Span TestSecondary6 months Card Sorting Test (Berg)Secondary6 months
NCT07652476	Start2026	PhaseObservational	ConditionsCancer	Participants100	Lead sponsorOther	StatusNot yet recruiting	Library tests named Trail Making TestPrimarysame day Stroop Color-Word TestPrimarysame day Verbal LearningPrimarysame day Verbal FluencyPrimarysame day Digit Span TestPrimarysame day Symbol CodingPrimarysame day Picture Naming TestPrimarysame day Complex Figure Copy and RecallPrimarysame day Corsi Block-Tapping TestPrimarysame day
NCT07479927	Start2025	PhaseNot applicable	ConditionsCancer	Participants40	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimarysame day Verbal FluencyPrimarysame day Symbol CodingPrimarysame day Continuous Performance TestPrimarysame day Category FluencyPrimarysame day
NCT07331077	Start2026	PhaseNot applicable	ConditionsCancer	Participants10	Lead sponsorOther	StatusNot yet recruiting	Library tests named Stroop Color-Word TestPrimary6 months Verbal LearningPrimary6 months Continuous Performance TestPrimary6 months Choice Reaction TimePrimary6 months AX Continuous Performance TestWording unclear
NCT07191119	Start2026	PhaseNot applicable	ConditionsCancer, Sleep and sleep disorders	Participants40	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary8 weeks Continuous Performance TestPrimary8 weeks
NCT07173101	Start2025	PhasePhase 2	ConditionsCancer	Participants7	Lead sponsorOther	StatusStopped early	Library tests named Trail Making TestSecondary8 weeks Stroop Color-Word TestSecondary8 weeks
NCT07147621	Start2026	PhaseObservational	ConditionsCancer	Participants120	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestSecondary12 months Verbal LearningSecondary12 months Verbal FluencySecondary12 months Digit Span TestSecondary12 months
NCT06880861	Start2025	PhaseObservational	ConditionsCancer	Participants150	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary4 weeks Continuous Performance TestSecondary4 weeks
NCT06878469	Start2025	PhaseNot applicable	ConditionsCancer	Participants200	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary12 months Verbal FluencyPrimary12 months Digit Span TestPrimary12 months Task Switching TestPrimary12 months Complex Figure Copy and RecallPrimary12 months
NCT06828003	Start2025	PhaseNot applicable	ConditionsCancer	Participants30	Lead sponsorOther	StatusNot yet recruiting	Library tests named Stroop Color-Word TestSecondary8 weeks Verbal LearningSecondary8 weeks Vocabulary TestSecondary8 weeks Size Order Memory TestSecondary8 weeks Picture Order Memory TestSecondary8 weeks
NCT06727370	Start2024	PhaseObservational	ConditionsCancer, Lung disease	Participants200	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestPrimary12 months Stroop Color-Word TestPrimary12 months Verbal LearningPrimary12 months Verbal FluencyPrimary12 months Digit Span TestPrimary12 months Symbol CodingPrimary12 months Corsi Block-Tapping TestPrimary12 months
NCT06618339	Start2024	PhaseNot applicable	ConditionsDepression and bipolar disorder, Cancer, Anxiety, PTSD and OCD	Participants19	Lead sponsorOther	StatusCompleted	Library tests named Stroop Color-Word TestPrimary8 weeks Card Sorting Test (Berg)Primary8 weeks Tower of HanoiPrimary8 weeks
NCT06589544	Start2024	PhaseNot applicable	ConditionsDepression and bipolar disorder, Cancer	Participants100	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestSecondary6 months Stroop Color-Word TestSecondary6 months Verbal FluencySecondary6 months Digit Span TestSecondary6 months
NCT06553235	Start2024	PhaseNot applicable	ConditionsCancer, Sleep and sleep disorders	Participants84	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestSecondary8 months Stroop Color-Word TestSecondary8 months Verbal LearningSecondary8 months Verbal FluencySecondary8 months Digit Span TestSecondary8 months Symbol CodingSecondary8 months Continuous Performance TestPrimary8 months Psychomotor Vigilance TaskSecondary8 months Paced Visual Serial Addition TestSecondary8 months
NCT06468176	Start2024	PhaseNot applicable	ConditionsCancer	Participants187	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestSecondary12 months Stroop Color-Word TestSecondary12 months Verbal LearningSecondary12 months Verbal FluencySecondary12 months Digit Span TestSecondary12 months Symbol CodingSecondary12 months Task Switching TestSecondary12 months Delayed Recall ModuleSecondary12 months Recognition Memory TestSecondary12 months
NCT06419946	Start2025	PhasePhase 3	ConditionsCancer	Participants200	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestSecondary6 months Continuous Performance TestSecondary6 months Finger Tapping TaskSecondary6 months
NCT06312969	Start2023	PhaseNot applicable	ConditionsCancer	Participants56	Lead sponsorOther	StatusStatus unknown	Library tests named Stroop Color-Word TestPrimarysame day Verbal FluencyPrimarysame day
NCT06281145	Start2024	PhaseNot applicable	ConditionsCancer, Sleep and sleep disorders	Participants100	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary3 years Digit Span TestPrimary3 years
NCT06269536	Start2024	PhaseNot applicable	ConditionsCancer, Sleep and sleep disorders	Participants50	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestPrimary3 years Digit Span TestPrimary3 years
NCT06238882	Start2023	PhaseNot applicable	ConditionsCancer	Participants74	Lead sponsorOther	StatusRecruiting	Library tests named Stroop Color-Word TestSecondary16 weeks
NCT06150976	Start2025	PhaseNot applicable	ConditionsCancer	Participants7	Lead sponsorOther	StatusCompleted	Library tests named Stroop Color-Word TestPrimary Continuous Performance TestPrimary
NCT06138015	Start2021	PhaseNot applicable	ConditionsCancer	Participants80	Lead sponsorOther	StatusCompleted Paper 1 Paper 2	Library tests named Stroop Color-Word TestPrimary12 weeks N-Back TaskPrimary12 weeks
NCT06112639	Start2024	PhaseNot applicable	ConditionsDementia and Alzheimer's, Mild cognitive impairment, Multiple sclerosis, Cancer	Participants192	Lead sponsorOther	StatusRecruiting	Library tests named Trail Making TestSecondary6 months Stroop Color-Word TestSecondary6 months Verbal FluencySecondary6 months Symbol CodingSecondary6 months Category FluencySecondary6 months Selective Reminding TaskSecondary6 months Delayed Recall ModuleSecondary6 months
NCT06073717	Start2024	PhaseNot applicable	ConditionsCancer	Participants108	Lead sponsorOther	StatusActive, not recruiting	Library tests named Trail Making TestPrimary7 months Stroop Color-Word TestSecondary7 months

Questions, answered from the data

How many cancer trials use the Stroop Color-Word Test?

Which tests do cancer trials use with the Stroop Color-Word Test?

The Trail Making Test (26 studies), Verbal Learning (25 studies) and the Digit Span Test (24 studies).

When do cancer trials measure the Stroop Color-Word Test?

Half of the primary outcomes that name the Stroop Color-Word Test are measured within 4 months of the start, and the middle half from 6 weeks to 12 months. 32 primary outcomes give a duration.

How many completed cancer trials that use the Stroop Color-Word Test have reported results?

How the studies are counted

Run the Stroop Color-Word Test in your trial

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Stroop Color-Word Test in cancer trials: 65 registered studies

Tests named in the same studies

Studies by start year

Phases and study sizes

By phase

Participants per study

When cancer trials measure it

Latest time point of each outcome

Status, results, interventions and countries

Status

What they test

Where their sites are

Reported results

The 65 studies

Library tests named most

Largest condition groups

Phases

Participants

The studies, newest registration first

Questions, answered from the data

How many cancer trials use the Stroop Color-Word Test?

Which tests do cancer trials use with the Stroop Color-Word Test?

When do cancer trials measure the Stroop Color-Word Test?

How many completed cancer trials that use the Stroop Color-Word Test have reported results?

More on the Stroop Color-Word Test and cancer

The Stroop Color-Word Test in other conditions

Other tests in cancer trials

How the studies are counted

Run the Stroop Color-Word Test in your trial

Stroop Color-Word Test in cancer trials: 65 registered studies

Tests named in the same studies

Studies by start year

Phases and study sizes

By phase

Participants per study

When cancer trials measure it

Latest time point of each outcome

Status, results, interventions and countries

Status

What they test

Where their sites are

Reported results

The 65 studies

Library tests named most

Largest condition groups

Phases

Participants

The studies, newest registration first

Questions, answered from the data

How many cancer trials use the Stroop Color-Word Test?

Which tests do cancer trials use with the Stroop Color-Word Test?

When do cancer trials measure the Stroop Color-Word Test?

How many completed cancer trials that use the Stroop Color-Word Test have reported results?

More on the Stroop Color-Word Test and cancer

The Stroop Color-Word Test in other conditions

Other tests in cancer trials

How the studies are counted

Run the Stroop Color-Word Test in your trial