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Trial · NCT04488822

A Study of the Efficacy and Safety of Pexidartinib in Adult Subjects With TGCT

NCT04488822, Phase 3, Active not recruiting, Daiichi Sankyo Co., Ltd.; results first posted 2023-04-27

3 sourcestrials-2026-11-12-0.5.0

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ConductScience Library. A Study of the Efficacy and Safety of Pexidartinib in Adult Subjects With TGCT. Trials, record NCT04488822. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT04488822

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Trial

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

Title
A Study of the Efficacy and Safety of Pexidartinib in Adult Subjects With TGCT
NCT number
NCT04488822
Status
Active not recruiting
Phases
Phase 3
Enrollment
40 participants, actual
Lead sponsor
Daiichi Sankyo Co., Ltd.
Conditions
Tenosynovial Giant Cell Tumor
Interventions
Pexidartinib
First posted
2020-07-28
Last updated
2026-06-26
Results first posted
2023-04-27

Source ClinicalTrials.gov

Registered outcomes10

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

ListOutcomeTime frameDescription
PrimaryOverall Response Rate (ORR) of Pexidartinib Based on RECIST 1.1 of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25At Week 25 postdose
For the assessment of tumor response, participants were classified into the best of the following tumor response categories based on Response Evaluation Criteria in Solid Tumors Version 1.1 (RECIST 1.1) by centrally reviewed MRI scan. Complete response (CR), disappearance of all target lesions and normalization of tumor marker level; partial response (PR), at least a 30% decrease in the sum of diameters of target lesions, taking as reference the baseline sum diameters; and overall response rate (ORR), defined as CR+PR, are presented.
SecondaryOverall Response Rate (ORR) of Pexidartinib Based on TVS of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25At Week 25 postdose
For the assessment of tumor response, participants were classified into the best of the following tumor response categories based on Tumor Volume Score (TVS) by centrally reviewed MRI scan. Tumor Volume Score (TVS) is a semi-quantitative MRI scoring system that describes tumor mass and is based on 10% increments of the estimated volume of the maximally distended synovial cavity or tendon sheath involved. A tumor that is equal in volume to that of a maximally distended synovial cavity or tendon sheath was scored 10; a score of 0 indicated no evidence of tumor. Complete response (CR), disappearance of lesion; partial response (PR), at least 50% decrease in volume score relative to baseline; overall response rate (ORR), defined as CR+PR, are presented.
SecondaryMean Percent Change From Baseline for Range of Motion (ROM) Score in Participants Receiving PexidartinibAt Week 25 postdose
Range of motion (ROM) of the joint was assessed by a qualified, independent, and blinded or third-party assessors at the clinical site. The relative ROM was calculated (expressed in percent) as follows: Relative ROM = 100 x (absolute ROM measured)/(reference ROM standard). The change from baseline in relative ROM at Week 25 was calculated as the difference in relative ROM at Week 25 visit minus relative ROM at Screening visit.
SecondaryMean Change From Baseline in the Patient-reported Outcomes Measurement Information System (PROMIS) Physical Function Score in Participants Receiving PexidartinibAt Week 25 postdose
The Patient-reported Outcomes Measurement Information System (PROMIS) physical function scale was used to assess the physical function of the upper and lower limbs. The scale ranges from 1 defined as 'unable to do' or 'cannot do' to 5 defined as 'without any difficulty' or 'not at all', where higher scores represent better outcomes.
SecondaryBest Overall Response of Pexidartinib Based on RECIST 1.1 and TVS by Centrally Reviewed MRI ScanFrom baseline until disease progression or death (whichever occurs first), up to approximately 29 months
Best overall response (CR or PR) of pexidartinib based on RECIST 1.1 and TVS are summarized. Tumor categories for RECIST v1.1 were as follows: complete response (CR), disappearance of all target lesions; partial response (PR), at least a 30% decrease in the sum of diameters of target lesions; stable disease (SD), neither sufficient shrinkage to qualify for PR nor sufficient increase to qualify for progressive disease; progressive disease (PD), at least a 20% increase in the sum of diameters of target lesions; and not evaluable (NE). Tumor categories for TVS were as follows: complete response (CR), disappearance of all target lesions; partial response (PR), at least a 50% decrease in volume score relative to baseline; stable disease (SD), does not meet any of the prior criteria based on score during study; progressive disease (PD), at least a 30% increase in in volume relative to lowest score during the study whether at baseline or some other visit; and not evaluable (NE).
SecondaryDuration of Response of Pexidartinib Based on RECIST 1.1 and TVS by Centrally Reviewed MRI ScanTime from the date of first documented response until documented disease progression or death from any cause (whichever occurs first), up to approximately 29 monthsDuration of response (DOR) is defined as the date of the first recorded response to the first date of documented disease progression.
SecondaryNumber of Participants Reporting Frequent (≥10%) Treatment-Emergent Adverse Events by Preferred TermUp to approximately 29 months
A Treatment-emergent adverse event (TEAE) is defined as an AE that occurs, having been absent before the first dose of study drug, or has worsened in severity or seriousness after the initiating the study drug until post-treatment visit (28 ± 7 days after the last dose of study drug).
SecondaryArea Under the Plasma Concentration Time Curve From Time 0 to 6 Hours AUC(0-6h) in Participants Receiving PexidartinibWeek 3: Cycle 1 Day 1 at pre-dose, 0.5h, 1h, 2h, 4h, and 6h post-dose (each cycle is 28 days)AUC(0-6h) was calculated using standard non-compartmental analysis. AUC(0-6h) for Pexidartinib and primary metabolite, ZAAD-1006a, are presented.
SecondaryMaximum Plasma Concentration (Cmax) in Participants Receiving PexidartinibWeek 3: Cycle 1 Day 1 at pre-dose, 0.5h, 1h, 2h, 4h, and 6h post-dose (each cycle is 28 days)Cmax was calculated using standard non-compartmental analysis. Cmax for Pexidartinib and primary metabolite, ZAAD-1006a, are presented.
SecondaryTime to Reach Maximum Observed Plasma Concentration (Tmax) of Participants Receiving PexidartinibWeek 3: Cycle 1 Day 1 at pre-dose, 0.5h, 1h, 2h, 4h, and 6h post-dose (each cycle is 28 days)Tmax was calculated using standard non-compartmental analysis. Tmax for Pexidartinib and primary metabolite, ZAAD-1006a, are presented.

Outcomes10

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYOverall Response Rate (ORR) of Pexidartinib Based on RECIST 1.1 of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25At Week 25 postdoseORR based on RECIST 1.1 was assessed in the Full Analysis Set.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYOverall Response Rate (ORR) of Pexidartinib Based on TVS of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25At Week 25 postdoseORR based on TVS was assessed in the Full Analysis Set.ParticipantsCOUNT_OF_PARTICIPANTS
SECONDARYMean Percent Change From Baseline for Range of Motion (ROM) Score in Participants Receiving PexidartinibAt Week 25 postdose
Mean Percent Change From Baseline for Range of Motion (ROM) was assessed in Full Analysis Set; however, participant assessments falling outside the visit window were excluded from the change from baseline analysis.
Percent ChangeLEAST_SQUARES_MEAN
SECONDARYMean Change From Baseline in the Patient-reported Outcomes Measurement Information System (PROMIS) Physical Function Score in Participants Receiving PexidartinibAt Week 25 postdoseMean Change From PROMIS was assessed in the Full Analysis Set; however, participant assessments falling outside the visit window were excluded from the change from baseline analysis.Score on a scaleLEAST_SQUARES_MEAN
SECONDARYBest Overall Response of Pexidartinib Based on RECIST 1.1 and TVS by Centrally Reviewed MRI ScanFrom baseline until disease progression or death (whichever occurs first), up to approximately 29 months
SECONDARYDuration of Response of Pexidartinib Based on RECIST 1.1 and TVS by Centrally Reviewed MRI ScanTime from the date of first documented response until documented disease progression or death from any cause (whichever occurs first), up to approximately 29 months
SECONDARYNumber of Participants Reporting Frequent (≥10%) Treatment-Emergent Adverse Events by Preferred TermUp to approximately 29 months
SECONDARYArea Under the Plasma Concentration Time Curve From Time 0 to 6 Hours AUC(0-6h) in Participants Receiving PexidartinibWeek 3: Cycle 1 Day 1 at pre-dose, 0.5h, 1h, 2h, 4h, and 6h post-dose (each cycle is 28 days)AUC(0-6h) was assessed in the Pharmacokinetic Analysis Set.ng*h/mLMEAN
SECONDARYMaximum Plasma Concentration (Cmax) in Participants Receiving PexidartinibWeek 3: Cycle 1 Day 1 at pre-dose, 0.5h, 1h, 2h, 4h, and 6h post-dose (each cycle is 28 days)Cmax was assessed in the Pharmacokinetic Analysis Set.ng/mLMEAN
SECONDARYTime to Reach Maximum Observed Plasma Concentration (Tmax) of Participants Receiving PexidartinibWeek 3: Cycle 1 Day 1 at pre-dose, 0.5h, 1h, 2h, 4h, and 6h post-dose (each cycle is 28 days)Tmax was assessed in the Pharmacokinetic Analysis Set.hoursMEDIAN

Results by group14

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

OutcomeGroupCategoryValueSpreadUnits
Overall Response Rate (ORR) of Pexidartinib Based on RECIST 1.1 of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25PexidartinibCR0Participants
Overall Response Rate (ORR) of Pexidartinib Based on RECIST 1.1 of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25PexidartinibPR9Participants
Overall Response Rate (ORR) of Pexidartinib Based on RECIST 1.1 of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25PexidartinibORR9Participants
Overall Response Rate (ORR) of Pexidartinib Based on TVS of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25PexidartinibCR0Participants
Overall Response Rate (ORR) of Pexidartinib Based on TVS of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25PexidartinibPR19Participants
Overall Response Rate (ORR) of Pexidartinib Based on TVS of Asian Participants With Symptomatic Tenosynovial Giant Cell Tumor (TGCT) at Week 25PexidartinibORR19Participants
Mean Percent Change From Baseline for Range of Motion (ROM) Score in Participants Receiving PexidartinibPexidartinib23.05Standard Deviation 3.207Percent Change
Mean Change From Baseline in the Patient-reported Outcomes Measurement Information System (PROMIS) Physical Function Score in Participants Receiving PexidartinibPexidartinib0.46Standard Deviation 1.384Score on a scale
Area Under the Plasma Concentration Time Curve From Time 0 to 6 Hours AUC(0-6h) in Participants Receiving PexidartinibPexidartinibPexidartinib51500Standard Deviation 28.5ng*h/mL
Area Under the Plasma Concentration Time Curve From Time 0 to 6 Hours AUC(0-6h) in Participants Receiving PexidartinibPexidartinibZAAD-1006a108000Standard Deviation 52.1ng*h/mL

Participant flow3

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDPexidartinib40
Overall StudyCOMPLETEDPexidartinib31
Overall StudyNOT COMPLETEDPexidartinib9

Adverse events67

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherHair color changesSkin and subcutaneous tissue disordersPexidartinib3140
otherPruritusSkin and subcutaneous tissue disordersPexidartinib1940
otherRashSkin and subcutaneous tissue disordersPexidartinib1740
otherSkin discolorationSkin and subcutaneous tissue disordersPexidartinib740
otherDrug eruptionSkin and subcutaneous tissue disordersPexidartinib540
otherHair texture abnormalSkin and subcutaneous tissue disordersPexidartinib540
otherAlopeciaSkin and subcutaneous tissue disordersPexidartinib240
otherUrticariaSkin and subcutaneous tissue disordersPexidartinib240
otherAlanine aminotransferase increasedInvestigationsPexidartinib2440
otherAspartate aminotransferase increasedInvestigationsPexidartinib2340

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityPexidartinib040
Total, other adverse eventsPexidartinib4040
Total, serious adverse eventsPexidartinib640

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
40841499DERIVED

Source PubMed

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 comparisons0

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

None in this release.

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/NCT04488822

GET https://conductscience.org/api/trials/v1/NCT04488822/events?page=2