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Trial ยท NCT04400487

Actigraphy Improvement With Voxelotor (ActIVe) Study

NCT04400487, Phase 4, Completed, Pfizer; results first posted 2023-11-21

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. Actigraphy Improvement With Voxelotor (ActIVe) Study. Trials, record NCT04400487. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04400487

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Trial

As registered on ClinicalTrials.gov, in the graph's capture of the registry.

Title
Actigraphy Improvement With Voxelotor (ActIVe) Study
NCT number
NCT04400487
Status
Completed
Phases
Phase 4
Enrollment
25 participants, actual
Lead sponsor
Pfizer
Conditions
Sickle Cell Disease, Sickle Cell Anemia
Interventions
Voxelotor
First posted
2020-05-22
Last updated
2023-11-21
Results first posted
2023-11-21

Source ClinicalTrials.gov

Registered outcomes20

Each outcome the trial registered, primary first, in ClinicalTrials.gov's words.

ListOutcomeTime frameDescription
PrimaryChange From Baseline in Total Daily Physical Activity (Counts Per Minute) to Week 10-12Baseline, Week 10-12
Daily physical activity was measured by actigraphy in participants with sickle cell disease (SCD) and chronic moderate anemia. Actigraphy assessments were performed using wrist-worn tri-axial accelerometry device. Actigraphy is an accepted methodology for tracking activity levels, time spent in moderate and vigorous physical activity, step counts, and energy expenditure. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Total Daily Physical Activity (Counts Per Minute) to Week 22-24Baseline, Week 22-24
Daily physical activity was measured by actigraphy in participants with SCD and chronic moderate anemia. Actigraphy assessments were performed using wrist-worn tri-axial accelerometry device. Actigraphy is an accepted methodology for tracking activity levels, time spent in moderate and vigorous physical activity, step counts, and energy expenditure. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Light Physical Activity to Week 10-12Baseline, Week 10-12
Change in daily physical activity was measured by actigraphy in adolescent and adult participants with SCD and chronic moderate anemia. This outcome measure described the change from baseline in light physical activity. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Light Physical Activity to Week 22-24Baseline, Week 22-24
Change in daily physical activity was measured by actigraphy in adolescent and adult participants with SCD and chronic moderate anemia. This outcome measure described the change from baseline in light physical activity. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Moderate Physical Activity to Week 10-12Baseline, Week 10-12
Change in daily moderate physical activity (minutes per day) was measured by actigraphy in participants with SCD and chronic moderate anemia. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Moderate Physical Activity to Week 22-24Baseline, Week 22-24
Change in daily moderate physical activity (minutes per day) was measured by actigraphy in participants with SCD and chronic moderate anemia. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Vigorous Physical Activity to Week 10-12Baseline, Week 10-12
Change in daily vigorous physical activity (minutes per day) was measured by actigraphy in participants with SCD and chronic moderate anemia. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Vigorous Physical Activity to Week 22-24Baseline, Week 22-24
Change in daily vigorous physical activity (minutes per day) was measured by actigraphy in participants with SCD and chronic moderate anemia. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Total Nocturnal Sleep Time to Week 10-12Baseline, Week 10-12
Total nocturnal sleep time was measured by overnight actigraphy monitoring. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.
PrimaryChange From Baseline in Total Nocturnal Sleep Time to Week 22-24Baseline, Week 22-24
Total nocturnal sleep time was measured by overnight actigraphy monitoring. Change from baseline to follow-up visit was calculated as the baseline measurement subtracted from the follow-up measurement for all assessments. In this outcome measure the average of at least 8 valid days during the specified two-week period was considered. A participant's daily wear must be 18 hours or more in a day to be considered a valid day.

Outcomes20

Each outcome the trial posted results for, in ClinicalTrials.gov's words.

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYChange From Baseline in Total Daily Physical Activity (Counts Per Minute) to Week 10-12Baseline, Week 10-12
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
Counts per minuteMEAN
PRIMARYChange From Baseline in Total Daily Physical Activity (Counts Per Minute) to Week 22-24Baseline, Week 22-24
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
Counts per minuteMEAN
PRIMARYChange From Baseline in Light Physical Activity to Week 10-12Baseline, Week 10-12
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
minutes/dayMEAN
PRIMARYChange From Baseline in Light Physical Activity to Week 22-24Baseline, Week 22-24
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
minutes/dayMEAN
PRIMARYChange From Baseline in Moderate Physical Activity to Week 10-12Baseline, Week 10-12
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
minutes/dayMEAN
PRIMARYChange From Baseline in Moderate Physical Activity to Week 22-24Baseline, Week 22-24
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
minutes/dayMEAN
PRIMARYChange From Baseline in Vigorous Physical Activity to Week 10-12Baseline, Week 10-12
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
minutes/dayMEAN
PRIMARYChange From Baseline in Vigorous Physical Activity to Week 22-24Baseline, Week 22-24
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
Minutes/dayMEAN
PRIMARYChange From Baseline in Total Nocturnal Sleep Time to Week 10-12Baseline, Week 10-12
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
Minutes/dayMEAN
PRIMARYChange From Baseline in Total Nocturnal Sleep Time to Week 22-24Baseline, Week 22-24
Participants who received at least 1 dose of voxelotor were included in the safety population. Here, 'Overall Number of Participants Analyzed' signifies number of participants evaluable for this outcome measure.
Minutes/dayMEAN

Results by group14

Each measurement the trial posted, group by group, in the words and numbers it posted.

OutcomeGroupCategoryValueSpreadUnits
Change From Baseline in Total Daily Physical Activity (Counts Per Minute) to Week 10-12Voxelotor-155.6Standard Deviation 458.45Counts per minute
Change From Baseline in Total Daily Physical Activity (Counts Per Minute) to Week 22-24Voxelotor-79.4Standard Deviation 443.77Counts per minute
Change From Baseline in Light Physical Activity to Week 10-12Voxelotor5.8Standard Deviation 62.67minutes/day
Change From Baseline in Light Physical Activity to Week 22-24Voxelotor-11.7Standard Deviation 115.34minutes/day
Change From Baseline in Moderate Physical Activity to Week 10-12Voxelotor-9.0Standard Deviation 25.55minutes/day
Change From Baseline in Moderate Physical Activity to Week 22-24Voxelotor-5.7Standard Deviation 30.01minutes/day
Change From Baseline in Vigorous Physical Activity to Week 10-12Voxelotor0.0Standard Deviation 4.94minutes/day
Change From Baseline in Vigorous Physical Activity to Week 22-24Voxelotor-1.2Standard Deviation 6.52Minutes/day
Change From Baseline in Total Nocturnal Sleep Time to Week 10-12Voxelotor0.3Standard Deviation 77.64Minutes/day
Change From Baseline in Total Nocturnal Sleep Time to Week 22-24Voxelotor17.6Standard Deviation 141.10Minutes/day

Participant flow13

How many started, completed or left each group, period by period.

PeriodMilestoneGroupParticipantsUnits counted
Screening Period (28 Days)STARTEDVoxelotor25
Screening Period (28 Days)COMPLETEDVoxelotor25
Screening Period (28 Days)NOT COMPLETEDVoxelotor0
Run-in Period (14 Days)STARTEDVoxelotor25
Run-in Period (14 Days)COMPLETEDVoxelotor25
Run-in Period (14 Days)NOT COMPLETEDVoxelotor0
Treatment Period (24 Weeks)STARTEDVoxelotor25
Treatment Period (24 Weeks)Treated (With at Least 1 Dose of Study Treatment)Voxelotor25
Treatment Period (24 Weeks)COMPLETEDVoxelotor23
Treatment Period (24 Weeks)NOT COMPLETEDVoxelotor2

Adverse events68

Each adverse event the trial posted, group by group: the participants affected out of those at risk.

TypeEventOrgan systemGroupAffectedAt riskEvents
otherSickle cell anaemia with crisisBlood and lymphatic system disordersVoxelotor: SCD Related525
otherSickle cell anaemia with crisisBlood and lymphatic system disordersVoxelotor: Non-SCD Related025
otherDiarrhoeaGastrointestinal disordersVoxelotor: SCD Related025
otherDiarrhoeaGastrointestinal disordersVoxelotor: Non-SCD Related925
otherNauseaGastrointestinal disordersVoxelotor: SCD Related025
otherNauseaGastrointestinal disordersVoxelotor: Non-SCD Related625
otherVomitingGastrointestinal disordersVoxelotor: SCD Related025
otherVomitingGastrointestinal disordersVoxelotor: Non-SCD Related325
otherAbdominal painGastrointestinal disordersVoxelotor: SCD Related025
otherAbdominal painGastrointestinal disordersVoxelotor: Non-SCD Related225

Adverse event totals6

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityVoxelotor: SCD Related025
Total, all-cause mortalityVoxelotor: Non-SCD Related025
Total, other adverse eventsVoxelotor: SCD Related525
Total, other adverse eventsVoxelotor: Non-SCD Related1925
Total, serious adverse eventsVoxelotor: SCD Related825
Total, serious adverse eventsVoxelotor: Non-SCD Related325

Papers0

The papers the trial lists on ClinicalTrials.gov.

None in this release.

Grants0

The grants NIH RePORTER links to the trial, newest funded first: NIH's, and some of AHRQ's, CDC's, FDA's and VA's. Each shows its title, principal investigators, organization and funder in its newest year.

None in this release.

Trial comparisons2

Comparisons of the trial's two groups, calculated by ConductScience from the counts it posted.

ComparisonSource
Voxelotor: SCD Related vs Voxelotor: Non-SCD Related: deaths from any causeTrial comparisons
Voxelotor: SCD Related vs Voxelotor: Non-SCD Related: serious adverse eventsTrial comparisons

Tests0

The ConductCognition tests this trial's registered outcomes name, as ScienceGraph matched them in trial-tests-2026-11-12-0.2.1.

None in this release.

Data dates

The day each source was copied for this release.

ClinicalTrials.gov
2026-11-12
ClinicalTrials.gov
Results, from AACT
2026-03-23
AACT
NIH grant links
2026-11-13
NIH RePORTER

Sources 3

  • ClinicalTrials.gov's posted results, through CTTI's AACTFreely available. Acknowledgement requested
  • ClinicalTrials.govNo license stated
  • NIH RePORTER's clinical studies and project filesPublic domain
Each source's terms
  • ClinicalTrials.gov's posted results, through CTTI's AACTClinicalTrials.gov data via Aggregate Analysis of ClinicalTrials.gov (AACT), CTTI. CTTI makes its materials freely available and requests acknowledgement. https://aact.ctti-clinicaltrials.org/documentation/299
  • ClinicalTrials.govnone stated
  • NIH RePORTER's clinical studies and project filesPublic domain (NIH RePORTER)

ClinicalTrials.gov's data carry an international copyright outside the United States: https://clinicaltrials.gov/about-site/terms-conditions.

For software

Read this trial from software.

The record and each of its lists are JSON, twenty rows a page. No key.

GET https://conductscience.org/api/trials/v1/NCT04400487

GET https://conductscience.org/api/trials/v1/NCT04400487/events?page=2