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Dutasteride

Phase 3

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

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials3
Total Enrollment390

FDA Designations

No designations recorded

Clinical trial landscape

Dutasteride · 5 trials · 4 indications

Phase 3 5
NCT02014584Sexual Function in Men Receiving Dutasteride for Androgenetic AlopeciaAlopecia
COMPLETED117 Analytics
NCT01831791A Long-term Study to Determine Safety and Efficacy of Dutasteride in Male Subjects With Androgenetic AlopeciaAlopecia
COMPLETED120 Analytics
NCT00527605Dutasteride 0.5mg For The Treatment Of Chinese Patients With Benign Prostatic Hyperplasia (BPH)Benign Prostatic Hyperplasia
COMPLETED253 Analytics
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 AlopeciaAlopecia
COMPLETED153 Analytics
NCT00056407"REDUCE" - A Clinical Research Study To Reduce The Incidence Of Prostate Cancer In Men Who Are At Increased RiskNeoplasms, Prostate
COMPLETED8,231 Analytics
PHASE3COMPLETED
Sexual Function in Men Receiving Dutasteride for Androgenetic Alopecia
AlopeciaUnlock trial analytics
PHASE3COMPLETED
A Long-term Study to Determine Safety and Efficacy of Dutasteride in Male Subjects With Androgenetic Alopecia
AlopeciaUnlock trial analytics
PHASE3COMPLETED
Dutasteride 0.5mg For The Treatment Of Chinese Patients With Benign Prostatic Hyperplasia (BPH)
Benign Prostatic HyperplasiaUnlock trial analytics
PHASE3COMPLETED
A Study To Assess The Efficacy And Safety Of Dutasteride 0.5mg Once Daily For 6 Months In The Treatment Of Male Subjects With Androgenetic Alopecia
AlopeciaUnlock trial analytics
PHASE3COMPLETED
"REDUCE" - A Clinical Research Study To Reduce The Incidence Of Prostate Cancer In Men Who Are At Increased Risk
Neoplasms, ProstateUnlock trial analytics

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.

Percent Change From Baseline in the Prostate Volume at Month 6
Baseline and Month 6

Percent change from baseline was calculated as the prostate volume at Month 6 minus the volume at baseline, divided by the prostate volume at baseline and multiplied by 100. Prostate volume was measured by transrectal ultrasound.

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.

Number of Participants With Biopsy-detectable Prostate Cancer at Years 2 and 4 (Crude Rate Approach)
Years 1-2, Years 3-4, and Overall (Years 1-4)

Study biopsies consisted of 10 biopsy samples (cores) in a pre-defined pattern. Biopsies were read at the central pathology laboratory (CPL, which processed the majority, 94%, of biopsies). Biopsy cases that were positive for prostate cancer or precancerous lesions (high-grade prostatic intraepithelial neoplasia\[HGPIN\] or typical small acinar proliferation \[ASAP\]) and prostate surgeries were reviewed by the lead pathologist.

Number of Participants With Biopsy-detectable Prostate Cancer at Years 2 and 4 (Modified Crude Rate Approach)
Years 1-2, Years 3-4, and Overall (Years 1-4)

Study biopsies (biop.) consisted of 10 biop. samples (cores) in a pre-defined pattern and were read at the central pathology laboratory. Biop. cases that were positive for prostate cancer or precancerous lesions (HGPIN or ASAP) and prostate surgeries were reviewed by the lead pathologist. Participants included in the risk sets at Years 1-2 and Years 3-4 included those with a positive biop. at Years 1-2 or a biop. after Months 18-24, and those with a positive biop. at Years 3-4 or a biop. after Month 42, respectively. Overall included participants with a positive biop. or biop. after Month 42.

Number of Participants With Biopsy-detectable Prostate Cancer at Years 2 and 4 (Restricted Crude Rate Approach)
Years 1-2, Years 3-4, and Overall (Years 1-4)

Study biopsies consisted of 10 biopsy samples (cores) in a pre-defined pattern. Biopsies were read at the central pathology laboratory (which processed the majority, 94%, of biopsies). Biopsy cases that were positive for prostate cancer or precancerous lesions (HGPIN or ASAP) and prostate surgeries were reviewed by the lead pathologist. Participants included in the risk set at Years 1-2, Years 3-4, and Overall (Years 1-4) were those who had a biopsy during the specified time period.

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
AEXPERIMENTALdutasteride 0.5mg once daily orally
BPLACEBO_COMPARATORPlacebo matched once daily orally
DutasteridePLACEBO_COMPARATORDutasteride
dustasteride armEXPERIMENTALEligible subjects will complete a 4-week placebo run-in followed by randomization to 0.5mg dutasteride in a 1:1 ratio. Randomization will be stratified by center.

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 capsuleDRUGDutasteride 0.5mg once daily orally
Dutasteride matched placeboDRUGDutasteride matched placebo once daily orally
Dutasteride 0.5mg oral tabletsDRUGDutasteride
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Eligibility Criteria

Age Range18 Years to 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 KoreaTaiwanJapanChinaUnited StatesArgentinaAustraliaAustriaBelarusBelgiumBrazilBulgariaCanadaCroatiaDenmarkEstoniaFinlandFranceGermanyGreeceHungaryIrelandItalyLatviaLithuaniaMexicoNetherlandsNew ZealandNorwayPolandPortugalPuerto RicoRomaniaRussiaSlovakiaSloveniaSouth AfricaSpainSwedenSwitzerlandTunisiaTurkey (Türkiye)UkraineUnited Kingdom
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Frequently asked questions about Dutasteride

What is Dutasteride used for?

Dutasteride is a small molecule drug in Phase 3 development for benign prostatic hyperplasia, prostatic hyperplasia, prostate neoplasms, and alopecia. It is being studied for the treatment of androgenetic alopecia and benign prostatic hyperplasia in male patients.

What does Dutasteride target?

Dutasteride is a 5-alpha-reductase inhibitor that works by blocking the conversion of testosterone to dihydrotestosterone (DHT), a hormone involved in prostate growth and hair loss. This mechanism underlies its use in treating benign prostatic hyperplasia and androgenetic alopecia.

Who makes Dutasteride?

Dutasteride is developed by GSK plc, a pharmaceutical company listed on the stock exchange under the ticker symbol GSK. The company is conducting clinical trials to evaluate the drug's efficacy and safety in various patient populations.

What phase is Dutasteride in?

Dutasteride is in Phase 3 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. All eight completed trials were Phase 3 studies, with no active trials currently ongoing.

What clinical trials is Dutasteride in?

Dutasteride has been studied in eight completed Phase 3 trials, including NCT00441116 for androgenetic alopecia, NCT00527605 for benign prostatic hyperplasia in Chinese patients, NCT01831791 for long-term safety in androgenetic alopecia, and NCT02014584 for sexual function in men with androgenetic alopecia.

Is Dutasteride the same as Avodart?

Dutasteride is the generic name for the medication marketed as Avodart. It is also known by other brand names, and clinical trials refer to it as dutasteride 0.5mg. The drug is being investigated for multiple urological and dermatological conditions.