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Dutasteride

Phase 3

Alopecia | Small molecule | Other |GSK plc|Last Updated: Oct 11, 2018

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials3
Total Enrollment390
FDA Designations
No designations recorded
Clinical Trials (3)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02014584Sexual Function in Men Receiving Dutasteride for Androgenetic AlopeciaPHASE3 COMPLETED 117Jul 2, 2014Mar 19, 2016Oct 11, 201818 Chile, Hong Kong +3
NCT01831791A Long-term Study to Determine Safety and Efficacy of Dutasteride in Male Subjects With Androgenetic AlopeciaPHASE3 COMPLETED 120Apr 14, 2013Jul 19, 2014Jun 20, 20185 Japan
NCT00441116A Study To Assess The Efficacy And Safety Of Dutasteride 0.5mg Once Daily For 6 Months In The Treatment Of Male Subjects With Androgenetic AlopeciaPHASE3 COMPLETED 153Dec 15, 2006Jan 21, 2008Aug 16, 2018 -
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Study Endpoints
Primary Endpoints
Number of Participants With Adverse Events (AE) Related to Sexual Function in the Double-blind Treatment Period
24 weeks

An AE is defined as any untoward medical occurrence in a patient or clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. AEs related to sexual function are defined as: altered (decreased) libido, impotence, and ejaculation disorders.

Number of Participants With AE Related to Sexual Function in the Open-label Treatment Period
24 weeks

An AE is defined as any untoward medical occurrence in a patient or clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. AEs related to sexual function are defined as: altered (decreased) libido, impotence, and ejaculation disorders.

Number of Participants With AE Related to Sexual Function for the Double-blind and Open-label Combined Periods
48 weeks

An AE is defined as any untoward medical occurrence in a patient or clinical investigation participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. AEs related to sexual function are defined as: altered (decreased) libido, impotence, and ejaculation disorders.

Number 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

Number 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.

Number of Participants With Change From Baseline in Breast Examination Results Any Time Post-Baseline Visit
Baseline 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).

Mean Change From Baseline in Hemoglobin, Albumin and Total Protein at the Indicated Time Points
Baseline, 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).

Mean Change From Baseline in Hematocrit at the Indicated Time Points
Baseline, 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).

Mean Change From Baseline in Platelet Count and White Blood Cell Count at the Indicated Time Points
Baseline, 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).

Mean Change From Baseline in Red Blood Cells Count at the Indicated Time Points
Baseline, 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).

Mean Change From Baseline in Alanine Amino Transferase (ALT), Alkaline Phosphatase (ALP), Aspartate Amino Transferase (AST) at the Indicated Time Points
Baseline, 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).

Mean Change From Baseline in Total Bilirubin and Creatinine at the Indicated Time Points
Baseline, 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).

Mean Change From Baseline in Potassium, Sodium, Glucose and Urea/Blood Urea Nitrogen (BUN) at the Indicated Time Points
Baseline, 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).

Mean Change From Baseline in Prostate-specific Antigen at the Indicated Time Points
Baseline, Week 26 and 52 visits and/or early withdrawal visit

Blood samples were collected for the measurement of prostate-specific antigen at Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. Change from Baseline in the prostate-specific antigen 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).

Number of Participants With Any Laboratory Value Shifts From Baseline at Any Time Post-baseline
Baseline, Week 26 and 52 visits and/or early withdrawal visit

Blood samples for the assessment of the indicated laboratory parameters were taken at the Baseline, Week 26 and Week 52 visits and the early withdrawal visit where applicable. The laboratory parameters included ALP, ALT, AST, total bilirubin, total protein, sodium, potassium, albumin, glucose, creatinine, urea/BUN, hemoglobin, hematocrit, red blood cell (RBC) count, platelet count, white blood cell (WBC) count, and prostate-specific antigen (PSA). A laboratory value (LV) that is within the normal range is considered normal. A LV that is above the upper limit of the normal range is considered high abnormal. A LV that is below the lower limit of the normal range is considered low abnormal. Number of participants with any LV shifts from BL at any time post-BL are presented for, normal at BL to abnormal; normal at BL to high; normal at BL to low; normal or low at BL to high; normal or high at BL to low.

Mean Change From Baseline in Systolic Blood Pressure and Diastolic Blood Pressure at the Indicated Time Points
Baseline, Weeks 13, 26, 39, and 52 visits and or early withdrawal visit

Blood pressure measurements were taken to observe vital signs and included systolic blood pressure (SBP) and diastolic blood pressure (DBP) at the Screening visit, Baseline visit, Weeks 13, 26, 39, and 52 visits and the early withdrawal visit if applicable. Change from Baseline in SBP and DBP 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).

Mean Change From Baseline in Heart Rate at the Indicated Time Points
Baseline visit, Weeks 13, 26, 39, and 52 visits and or early withdrawal visit

Vital sign monitoring included heart rate measurement at the Screening visit, Baseline visit, Weeks 13, 26, 39, and 52 visits and the early withdrawal visit if applicable. Change from Baseline in heart rate 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).

Number of Participants Experiencing Suicidal Ideation or Suicidal Behavior Based on Columbia-Suicide Severity Rating Scale (C-SSRS)
Baseline, Week 26 and Week 52

The C-SSRS captures occurrence, severity, and frequency of suicide-related thoughts and behaviors. The number of participants answering yes/no responses to questions about suicidal ideation (Question \[Que\] 1 and Que 2) at Baseline and post-Baseline (since last visit) and suicidal behaviors (Que 6 - Que 10) at post-Baseline (since last visit) are presented. Questions included the presence (yes) or absence (no) of the following: Que 1 - a wish to be dead; Que 2 - nonspecific (NS) active suicidal thoughts; Que 6 - preparatory acts or behavior; Que 7 - aborted attempt; Que 8 - interrupted attempt (int. att.); Que 9 - non-fatal actual suicide attempt; Que 10 - completed suicide and non-suicidal self-injurious behavior. Final assessment (FA) is the last post-Baseline measurement during the study.

Change From Baseline Hair Growth Assessed by Macrophotographic Technique (Hair Count) in the Vertex at 6 Months.
Baseline and 6 months

The Macrophotographic hair count method marks a 1-inch diameter circular area at the anterior leading edge of the vertex thinning area and then photographed. The photographs are enlarged and converted into dot maps and the dot maps are converted into total hair counts by means of personal computer-based scanners and imaging software.

Secondary Endpoints
Duration and Persistence of AEs Related to Sexual Function in the Double-blind Treatment Period
24 weeks
Duration and Persistence of AEs Related to Sexual Function in the Open-label Treatment Period
24 weeks
Duration and Persistence of AEs Related to Sexual Function in the Double-blind and Open-label Combined Periods
48 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Dutasteride ArmEXPERIMENTALSubjects will receive dutasteride 0.5 milligrams (mg) administered orally once daily for 24 Weeks
Placebo ArmPLACEBO_COMPARATORSubjects will receive placebo administered orally once daily for 24 Weeks
DutasteridePLACEBO_COMPARATORDutasteride
Interventions
NameTypeDescription
DutasterideDRUGDutasteride will be supplied as soft gelatin capsules, containing 0.5 mg of dutasteride to be administered orally.
PlaceboDRUGDutasteride matching placebo will be supplied as capsules to be administered orally.
Dutasteride 0.5 mgDRUGDutasteride will be supplied as soft gelatin capsules, containing 0.5 mg of Dutasteride and it will be packaged in high-density polyethylene (HDPE) bottles with plastic child-resistant closures.
Dutasteride 0.5mg oral tabletsDRUGDutasteride
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Eligibility Criteria
Age Range18 Years — 50 Years
SexMALE
Healthy VolunteersNo
Study Sites18

Inclusion Criteria: * Subject agrees to participate in the study and has signed and dated the informed consent form prior to the initiation of any study-related activities. * AGA classified utilizing the Norwood-Hamilton classification. * Men 18 to 50 years old, inclusively. * Fluent and literate i...

Countries:ChileHong KongSingaporeSouth KoreaTaiwanJapan
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