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Trial · NCT01831791

A Long-term Study to Determine Safety and Efficacy of Dutasteride in Male Subjects With Androgenetic Alopecia

NCT01831791, Phase 3, Completed, GlaxoSmithKline; results first posted 2015-03-12

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ConductScience Library. A Long-term Study to Determine Safety and Efficacy of Dutasteride in Male Subjects With Androgenetic Alopecia. Trials, record NCT01831791. Release trials-2026-11-12-0.5.0, 12 Nov 2026. https://conductscience.org/library/trials/NCT01831791

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Trial

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

Title
A Long-term Study to Determine Safety and Efficacy of Dutasteride in Male Subjects With Androgenetic Alopecia
NCT number
NCT01831791
Status
Completed
Phases
Phase 3
Enrollment
120 participants, actual
Lead sponsor
GlaxoSmithKline
Conditions
Alopecia
Interventions
Dutasteride 0.5 mg
First posted
2013-04-15
Last updated
2018-06-20
Results first posted
2015-03-12

Source ClinicalTrials.gov

Registered outcomes23

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

ListOutcomeTime frameDescription
PrimaryNumber of Participants With Any Adverse Events (AEs) and Any Serious Adverse Events (SAEs)From Baseline (Week 0) until Week 52
An AE is defined as any untoward medical occurrence in a participant temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE can therefore be any unfavorable and unintended sign(including an abnormal laboratory finding), symptom, or disease(new or exacerbated) temporally associated with the use of a medicinal product. A SAE is defined as any untoward medical occurrence that, at any dose, results in death, is life threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, a congenital anomaly/birth defect, important medical events that jeopardize the participants or may require medical or surgical intervention to prevent one of the other outcomes listed in the above definition, drug-induced liver injury, breast cancer in male participants, prostate cancer, spontaneous abortion in female partner of male participants
PrimaryNumber of Participants With Drug-related, Treatment-emergent AEs and AE Leading to Premature Study Drug Discontinuation and Possible Suicidality-related Adverse Event (PSRAE)From Baseline (Week 0) until Week 52
An AE is considered drug-related if the relationship variable indicates so, or if the variable value is missing. Any AE with a start date on or after the treatment start date and on or before the last dose of treatment is considered on-treatment (treatment-emergent). This includes an AE with a missing onset date. Any AE which occurred, in the investigator's judgement and is possibly related to suicidality, is defined as possible suicidality-related adverse event (PSRAE). Suicidality was assessed by using the columbia-suicide severity rating scale (C-SSRS) as determined by the investigator. The C-SSRS captures occurrence, severity, and frequency of suicide-related thoughts and behaviors.
PrimaryNumber of Participants With Change From Baseline in Breast Examination Results Any Time Post-Baseline VisitBaseline to Week 52
A qualitative breast examination was performed at Baseline (Week 0), at the Week 26 Visit and at the Week 52 Visit (and at the early withdrawal visit, if applicable). Participants were assessed for presence (reported as yes) and absence (reported as no) of palpable breast tissue (PBT) or nipple tenderness (NT) and/or clinically significant (CS) PBT or NT at Baseline (BL), at each scheduled Post-BL assessment. Change from BL in breast examination results included the number of participants with change from 'no (N)' at BL to 'yes (Y)' at any Post-BL assessment for the presence of PBT or NT, and the number of participants with change from N at BL in CS to Y at any Post-BL assessment in CS for PBT and for NT. BL value of an assessment is defined as the latest assessment on or before the BL date (latest non-missing value of either the treatment start date or the randomization date).
PrimaryMean Change From Baseline in Hemoglobin, Albumin and Total Protein at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
Blood samples were collected for the measurement of hemoglobin, albumin and total protein at Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. Change from Baseline in the hemoglobin, albumin and total protein values are summarized for each post-Baseline assessment as well as for the final assessment (the last post-Baseline value in the study \[final value\]). Change from Baseline was calculated as the post-Baseline value minus the Baseline value. The Baseline value of an assessment is defined as the latest assessment on or before the Baseline date (latest non-missing value of either the treatment start date or the randomization date).
PrimaryMean Change From Baseline in Hematocrit at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
Blood samples were collected for the measurement of hematocrit at Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. Change from Baseline in the hematocrit value is summarized for each post-Baseline assessment as well as for the final assessment (the last post-Baseline value in the study \[final value\]). Change from Baseline was calculated as the post-Baseline value minus the Baseline value. The Baseline value of an assessment is defined as the latest assessment on or before the Baseline date (latest non-missing value of either the treatment start date or the randomization date).
PrimaryMean Change From Baseline in Platelet Count and White Blood Cell Count at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
Blood samples were collected for the measurement of platelet count and white blood cell count at Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. Change from Baseline in the platelet count and white blood cell count values are summarized for each post-Baseline assessment as well as for the final assessment (the last post-Baseline value in the study \[final value\]). Change from Baseline was calculated as the post-Baseline value minus the Baseline value. The Baseline value of an assessment is defined as the latest assessment on or before the Baseline date (latest non-missing value of either the treatment start date or the randomization date).
PrimaryMean Change From Baseline in Red Blood Cells Count at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
Blood samples were collected for the measurement of the red blood cell count at Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. Change from Baseline in the red blood cell count value is summarized for each post-Baseline assessment as well as for the final assessment (the last post-Baseline value in the study \[final value\]). Change from Baseline was calculated as the post-Baseline value minus the Baseline value. The Baseline value of an assessment is defined as the latest assessment on or before the Baseline date (latest non-missing value of either the treatment start date or the randomization date).
PrimaryMean Change From Baseline in Alanine Amino Transferase (ALT), Alkaline Phosphatase (ALP), Aspartate Amino Transferase (AST) at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
Blood samples were collected for the measurement of ALT, ALP and AST at Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. Change from Baseline in the ALT, ALP and AST values are summarized for each post-Baseline assessment as well as for the final assessment (the last post-Baseline value in the study \[final value\]). Change from Baseline was calculated as the post-Baseline value minus the Baseline value. The Baseline value of an assessment is defined as the latest assessment on or before the Baseline date (latest non-missing value of either the treatment start date or the randomization date).
PrimaryMean Change From Baseline in Total Bilirubin and Creatinine at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
Blood samples were collected for the measurement of total bilirubin and creatinine at Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. Change from Baseline in the total bilirubin and creatinine values are summarized for each post-Baseline assessment as well as for the final assessment (the last post-Baseline value in the study \[final value\]). Change from Baseline was calculated as the post-Baseline value minus the Baseline value. The Baseline value of an assessment is defined as the latest assessment on or before the Baseline date (latest non-missing value of either the treatment start date or the randomization date).
PrimaryMean Change From Baseline in Potassium, Sodium, Glucose and Urea/Blood Urea Nitrogen (BUN) at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
Blood samples were collected for the measurement of potassium, sodium, glucose and urea/BUN at Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. Change from Baseline in the potassium, sodium, glucose and urea/BUN values are summarized for each post-Baseline assessment as well as for the final assessment (the last post-Baseline value in the study \[final value\]). Change from Baseline was calculated as the post-Baseline value minus the Baseline value. The Baseline value of an assessment is defined as the latest assessment on or before the Baseline date (latest non-missing value of either the treatment start date or the randomization date).

Outcomes23

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

TypeOutcomeTime framePopulationUnitsMeasured as
PRIMARYNumber of Participants With Any Adverse Events (AEs) and Any Serious Adverse Events (SAEs)From Baseline (Week 0) until Week 52Intent-to-Treat (ITT) Population: comprised of all participants who received a randomization number, regardless of whether or not treatment was administeredParticipantsNUMBER
PRIMARYNumber of Participants With Drug-related, Treatment-emergent AEs and AE Leading to Premature Study Drug Discontinuation and Possible Suicidality-related Adverse Event (PSRAE)From Baseline (Week 0) until Week 52ITT PopulationParticipantsNUMBER
PRIMARYNumber of Participants With Change From Baseline in Breast Examination Results Any Time Post-Baseline VisitBaseline to Week 52
ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the ITT Population.
ParticipantsNUMBER
PRIMARYMean Change From Baseline in Hemoglobin, Albumin and Total Protein at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the ITT Population.
Grams per liter (g/L)MEAN
PRIMARYMean Change From Baseline in Hematocrit at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the ITT Population.
Proportion of red blood cells in bloodMEAN
PRIMARYMean Change From Baseline in Platelet Count and White Blood Cell Count at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the ITT Population.
10^9 cells/Liter (GI/L)MEAN
PRIMARYMean Change From Baseline in Red Blood Cells Count at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the ITT Population.
10^12 cells per liter (TI/L)MEAN
PRIMARYMean Change From Baseline in Alanine Amino Transferase (ALT), Alkaline Phosphatase (ALP), Aspartate Amino Transferase (AST) at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the ITT Population.
Units per liter (U/L)MEAN
PRIMARYMean Change From Baseline in Total Bilirubin and Creatinine at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the ITT Population.
Micromoles per liter (µmol/L)MEAN
PRIMARYMean Change From Baseline in Potassium, Sodium, Glucose and Urea/Blood Urea Nitrogen (BUN) at the Indicated Time PointsBaseline, Week 26 and 52 visits and/or early withdrawal visit
ITT Population. Only those participants available at the specified time points were analyzed (represented by n=X in the category titles). Different participants may have been analyzed for different parameters, so the overall number of participants analyzed reflects everyone in the ITT Population.
Millimoles per liter (mmol/L)MEAN

Results by group276

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

OutcomeGroupCategoryValueSpreadUnits
Number of Participants With Any Adverse Events (AEs) and Any Serious Adverse Events (SAEs)Dutasteride 0.5 mgAny AE64Participants
Number of Participants With Any Adverse Events (AEs) and Any Serious Adverse Events (SAEs)Dutasteride 0.5 mgAny SAE2Participants
Number of Participants With Drug-related, Treatment-emergent AEs and AE Leading to Premature Study Drug Discontinuation and Possible Suicidality-related Adverse Event (PSRAE)Dutasteride 0.5 mgAny drug related AEs20Participants
Number of Participants With Drug-related, Treatment-emergent AEs and AE Leading to Premature Study Drug Discontinuation and Possible Suicidality-related Adverse Event (PSRAE)Dutasteride 0.5 mgAny treatment-emergent AEs64Participants
Number of Participants With Drug-related, Treatment-emergent AEs and AE Leading to Premature Study Drug Discontinuation and Possible Suicidality-related Adverse Event (PSRAE)Dutasteride 0.5 mgAny AE leading to study drug discontinuation0Participants
Number of Participants With Drug-related, Treatment-emergent AEs and AE Leading to Premature Study Drug Discontinuation and Possible Suicidality-related Adverse Event (PSRAE)Dutasteride 0.5 mgAny PSRAE3Participants
Number of Participants With Change From Baseline in Breast Examination Results Any Time Post-Baseline VisitDutasteride 0.5 mgPBT, Change from N at BL to Y, n=1200Participants
Number of Participants With Change From Baseline in Breast Examination Results Any Time Post-Baseline VisitDutasteride 0.5 mgPBT, CS, Y (among change from N at BL to Y), n=00Participants
Number of Participants With Change From Baseline in Breast Examination Results Any Time Post-Baseline VisitDutasteride 0.5 mgPBT, CS, N (among change from N at BL to Y), n=00Participants
Number of Participants With Change From Baseline in Breast Examination Results Any Time Post-Baseline VisitDutasteride 0.5 mgNT, Change from N at BL to Y, n=1201Participants

Participant flow3

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

PeriodMilestoneGroupParticipantsUnits counted
Overall StudySTARTEDDutasteride 0.5 mg120
Overall StudyCOMPLETEDDutasteride 0.5 mg110
Overall StudyNOT COMPLETEDDutasteride 0.5 mg10

Adverse events5

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

TypeEventOrgan systemGroupAffectedAt riskEvents
otherNasopharyngitisInfections and infestationsDutasteride 0.5 mg18120
otherErectile dysfunctionReproductive system and breast disordersDutasteride 0.5 mg14120
otherLibido decreasedPsychiatric disordersDutasteride 0.5 mg10120
seriousStress fractureInjury, poisoning and procedural complicationsDutasteride 0.5 mg1120
seriousPost-traumatic neck syndromeInjury, poisoning and procedural complicationsDutasteride 0.5 mg1120

Adverse event totals3

The totals the trial posted for each group.

TotalGroupAffectedAt risk
Total, all-cause mortalityDutasteride 0.5 mg
Total, other adverse eventsDutasteride 0.5 mg31120
Total, serious adverse eventsDutasteride 0.5 mg2120

Papers1

The papers the trial lists on ClinicalTrials.gov.

PMIDListed as
26893187DERIVED

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/NCT01831791

GET https://conductscience.org/api/trials/v1/NCT01831791/registered?page=2