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Safety and Efficacy of TAK-385 for Patients With Localized Prostate Cancer

A Phase 2, Randomized, Open-Label, Parallel Group Study Evaluating the Safety and Efficacy of TAK-385, an Oral Gonadotropin-Releasing Hormone (GnRH) Antagonist, for Patients With Localized Prostate Cancer Requiring Neoadjuvant and Adjuvant Androgen Deprivation Therapy With External Beam Radiation Therapy (EBRT)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02135445
Enrollment
103
Registered
2014-05-12
Start date
2014-06-30
Completion date
2015-12-31
Last updated
2017-04-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate Cancer

Keywords

Drug therapy

Brief summary

The purpose of this study is to evaluate the efficacy of TAK-385 for achieving and maintaining testosterone suppression.

Detailed description

The drug being tested in this study is called TAK-385. Men with prostate cancer benefit from receiving androgen deprivation therapy (ADT) to minimize testosterone levels before, during and after EBRT. This combination increases the potential success of treating their disease. This study will see if TAK-385 \[an oral gonadotropin-releasing hormone (GnRH) antagonist\] brings testosterone levels down sufficiently, with the convenience and comfort of taking a pill. It will look at the time it takes to restore testosterone levels after radiation therapy as well. One hundred participants will be assigned by chance (like flipping a coin) to a treatment group: 60 to TAK-385, and 40 to degarelix. Those assigned to TAK-385 will take a daily pill. Those assigned to degarelix will receive an injection under the skin once every four weeks at the clinic. They will start radiation therapy when testosterone is low enough, after at least 12 weeks of treatment. This trial will be conducted at clinics in the United States (US) and United Kingdom (UK). Participants will visit the clinic up to 14 times over 37 weeks for physical exams and blood tests, and might receive one follow-up telephone call.

Interventions

TAK-385 tablet

DRUGDegarelix

Degarelix injection

Sponsors

Millennium Pharmaceuticals, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
MALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Is male, 18 years of age or older. 2. Has histologically confirmed diagnosis of localized prostate adenocarcinoma of intermediate risk for which 6-month neoadjuvant and adjuvant androgen deprivation therapy (ADT) to EBRT is indicated. Intermediate risk per National Comprehensive Cancer Network (NCCN) guidelines includes one of the following: 1. T2b-T2c disease, or 2. Gleason score 7, or 3. Prostate-specific antigen (PSA) 10-20 nanogram per milliliter (ng/mL). 3. Is scheduled for EBRT to begin greater than or equal to (\>=) 12 weeks after the Baseline visit. 4. Has serum testosterone at screening greater then (\>) 150 nanogram per deciliter (ng/dL) (5.2 nanomoles per liter \[nmol/L\]). 5. Has screening serum PSA concentration \>2 ng/mL. 6. Has body mass index (BMI) \>=18.0 at screening or baseline. 7. Has Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 at screening or baseline. 8. Is a male participant, even if surgically sterilized (that is, status postvasectomy), who: Agrees to practice effective barrier contraception during the entire study treatment period and through 4 months after the last dose of study drug, or, Agrees to practice true abstinence, when this is in line with the preferred and usual lifestyle of the participant. (Periodic abstinence \[example, calendar, ovulation, symptothermal, postovulation methods for the female partner\] and withdrawal are not acceptable methods of contraception.). 9. Has given voluntary written consent before performance of any study-related procedure not part of standard medical care, with the understanding that consent may be withdrawn by the participant at any time without prejudice to future medical care. 10. Has suitable venous access for the study-required blood sampling, including pharmacokinetic (PK) and pharmacodynamic sampling.

Exclusion criteria

1. Has metastatic disease (based on investigator evaluation and assuming no likely metastatic pelvic lymph nodes \>1.0 cm in long axis diameter). 2. Had prior or current use of a gonadotropin-releasing hormone (GnRH) analog or androgen receptor antagonist as first-line hormone therapy, unless total use was less than 6 months and not more recently than 1 year before the planned baseline visit. 3. Had diagnosis of or treatment for another malignancy within 2 years before the first dose of study drug, or previous diagnosis of another malignancy with evidence of residual disease. Participants with nonmelanoma skin cancer or carcinoma in situ of any type are not excluded if they have undergone complete resection. 4. Has abnormal screening and/or baseline laboratory values that suggest a clinically significant underlying disease, or the following laboratory values: 1. Alanine aminotransferase (ALT) and/or aspartate aminotransferase (AST) \>1.5 \* institutional upper limit of the normal range (ULN); 2. Serum creatinine \>2.0 milligram per deciliter (mg/dL); 3. Total bilirubin \>2.0 \* institutional ULN (unless documented Gilbert's disease); 4. Uncontrolled diabetes (Hemoglobin A1c \[HbA1c\] \>10 \[percent\] %) or previously undiagnosed diabetes mellitus with HbA1c \>8%. 5. Has history of myocardial infarction, unstable symptomatic ischemic heart disease, any ongoing cardiac arrhythmias of Grade \>2 (chronic stable atrial fibrillation on stable anticoagulant therapy is allowed), thromboembolic events (example, deep vein thrombosis, pulmonary embolism, or symptomatic cerebrovascular events), or any other significant cardiac condition (example, pericardial effusion, restrictive cardiomyopathy) within 6 months before receiving the first dose of study drug. 6. Has electrocardiogram (ECG) abnormalities of: 1. Q-wave infarction, unless identified 6 or more months before screening; 2. Heart rate-corrected QT interval millisecond (msec) (QTcF interval) \>480 msec. If QTcF is prolonged in a participant with a pacemaker, the participant may be enrolled in the study upon discussion with the project clinician; 3. If the QTcF interval is 450-480 msec, inclusive, in a participant with current use of medications with known effects on QT interval, the participant may be enrolled in the study following discussion with the project clinician. 7. Has congenital long QT syndrome. 8. Is currently using Class IA (example, quinidine, procainamide) or Class III (example, amiodarone, sotalol) antiarrhythmic medications. 9. Has uncontrolled hypertension despite appropriate medical therapy (sitting blood pressure \[BP\] of greater than 160 millimeters of mercury (mmHg) systolic and 90 mmHg diastolic at 2 separate measurements no more than 60 minutes apart during the Screening visit). Participants with systolic BP measurements \>160 mmHg may be rescreened. Participants with systolic BP measurements 141-160 mmHg, although eligible, should be referred for further management of hypertension if indicated. 10. Has known, previously diagnosed human immunodeficiency virus (HIV) infection, active chronic hepatitis B or C, life-threatening illness unrelated to prostate cancer, or any serious medical or psychiatric illness that could, in the investigator's opinion, potentially interfere with participation in this study. Specific screening for chronic viral illness is at the discretion of the site and/or local institutional review board (IRB). 11. Has received treatment with any investigational products within 3 months before the first dose of study drug. 12. Is a primary family member (spouse, parent, child, or sibling) of anyone involved in the conduct of the study or is a study site employee. 13. Has known gastrointestinal (GI) disease, condition or procedure that could interfere with the oral absorption or tolerance of TAK-385, including difficulty swallowing tablets. 14. Is using any medication or food products listed in the excluded medications and dietary products table within 2 weeks before the first dose of study drug. This list includes moderate and strong inhibitors or inducers of cytochrome P450 (CYP3A4/5) and P-glycoprotein (P-gp). Participants must have no history of amiodarone use in the 6 months before the first dose of TAK-385. 15. Has admission or evidence of alcohol or drug abuse or use of illicit drugs.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Effective Castration Rate Over 25 WeeksDay 1 Week 5 up to Day 1 Week 25Castration rate is defined as the observed percentage of participants who have testosterone concentrations less than (\<) 50 nanogram per deciliter (ng/dL) (1.73 nanomole per liter \[nmol/L\]) at all scheduled visits.

Secondary

MeasureTime frameDescription
Number of Participants With TEAEs Related to Physical FindingsBaseline up to Week 29
Number of Participants With TEAEs Related to 12-lead Electrocardiogram (ECG) FindingsBaseline up to Week 29
Number of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisBaseline up to Week 29
Number of Participants Reporting One or More TEAEs and Serious Adverse Events (SAEs)Baseline up to Week 29
Average Percent Change in Prostate SizeBaseline, Day 1 Week 9 to Day 1 Week 13Percent change in prostate size was assessed at a follow up visit between Day 1 Week 9 to Day 1 Week 13.
Time to Achieve Effective CastrationBaseline up to Week 37Time to effective castration is defined as days from first dose to first testosterone measurement that is \<50 ng/dL.
Time to Achieve Profound CastrationBaseline up to Week 37Time to profound castration is defined as days from first dose to first testosterone measurement that is \<20 ng/dL.
Estimated Time to Testosterone Recovery (TTR)Up to Day 1 Week 37TTR is defined as the time from 1 day after the last dose of TAK-385 or 4 weeks plus 1 day after the last dose of degarelix to testosterone recovery. Testosterone recovery is defined as back to baseline or \>280 ng/dL whichever occurs first. TTR was determined during 12 weeks after the discontinuation of androgen deprivation therapy (ADT).
Percentage of Participants Who Have Recovered to Baseline Value of TestosteroneUp to Day 1 Week 37
Percentage of Participants Who Have Recovered to >280 ng/dL TestosteroneDay 1 Week 25 up to Day 1 Week 37
Number of Participants With Treatment-emergent Adverse Events (TEAEs) Related to Vital SignsBaseline up to Week 29
Percent Change From Baseline in Serum PSA ConcentrationBaseline, Day 1 of Week 2, 3 , 5, 9, 13, 17, 21, 25, 29, 33 and 37
PSA NadirBaseline up to Day 1 Week 25
Serum PSA ConcentrationDay 1 of Week 13, 25, 29, 33 and 37
Plasma Concentrations of TAK-385Day 1 Week 1, 2, 3, 5, 9, 13, 17, 25, 33, 37: Pre-dose; Day 1 Week 5, 13: 2 hrs Post-dose; Day 4 Week 1: Pre-dose
Serum Luteinizing Hormone (LH) LevelBaseline, Day 1 of Weeks 2, 3, 5, 9, 13, 17, 21, 25, 29, and 37
Serum Follicle-Stimulating Hormone (FSH) LevelBaseline, Day 1 of Week 2, 5, 13, 25 and 29
Serum Sex Hormone-Binding Globulin (SHBG) LevelBaseline, Day 1 of Week 2, 5, 13, 25 and 29
Percent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 of Weeks 5, 13, 25, 29, 33 and 37AMS scale is a self-administered questionnaire used to 1) assess symptoms of aging (independent from those that are disease related) between groups of males under different conditions; 2) evaluate the severity of symptoms over time; and 3) measure changes before and after androgen therapy. Each question was answered between none (1) to extremely severe (5) for 17 items from psychological (5 items), somatic (7 items), and sexual (5 items) categories. Total score is sum of all the item scores and range from 17 (minimum) to 85 (maximum), where high score indicated high level of symptoms.
Change From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreBaseline and last post-baseline value up to Week 37EORTC QLQ-C30 included 30 questions comprising 9 multi-item scales: 5 functional scales (physical, role, cognitive, emotional, and social), 3 symptom scales (fatigue, pain, nausea/vomiting), single items (dyspnoea, appetite loss, insomnia, constipation/diarrhea and financial difficulties) and a global health and QOL scale. Most questions used 4 point scale (1 'Not at all' to 4 'Very much'); 2 questions used 7-point scale (1 'Very poor' to 7 'Excellent'). All domain scores were calculated as an average of item scores and transformed to 0-100 score range where a high score from 0-100 indicates: A high score for a functional scale represents a high / healthy level of functioning, a high score for the global health status/quality of life (QoL) represents a high QoL, but a high score for a symptom scale/item represents a high level of symptomatology/problem.
Change From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreBaseline and last post-baseline value up to Week 37EORTC QLQ-PR25 : EORTC module designed to supplement the QLQ-C30 for any application in prostate cancer. It Consist of 25 questions distributed on 6 domains: urinary symptoms (8 items), incontinence aid (1 item), bowel symptoms (4 items), hormonal treatment-related symptoms (HTRS) (6 items), sexual activity (2 items), and sexual functioning (4 items). Questions used 4 point scale (1 'Not at all' to 4 'Very much'). All raw domain scores are linearly transformed to a 0-100 scale, with higher scores reflecting either more symptoms (urinary, bowel, hormonal treatment-related symptoms) or higher levels of activity or functioning (sexual).
Number of Participants With PSA Response of >=50% and >=90% ReductionDay 1 Week 13Prostate-specific Antigen (PSA) response was defined as 50% and 90% reduction from baseline in serum PSA levels.

Countries

United Kingdom, United States

Participant flow

Recruitment details

Participants took part in the study at 23 investigative sites in the United States (US) and the United Kingdom (UK).

Pre-assignment details

Participants with a diagnosis of localized prostate cancer were enrolled in 1 of the 2 treatment groups to receive TAK-385 120 milligram (mg) or degarelix 80 mg.

Participants by arm

ArmCount
Experimental: TAK-385 120 mg
TAK-385 320 mg, tablets, orally, as loading dose on Day 1 followed by TAK-385 120 mg, tablets, orally, daily as maintenance dose starting from Day 2 up to Day 7 Week 24.
65
Experimental: Degarelix 80 mg
Degarelix 240 mg, injection, subcutaneously, on Day 1 Week 1 followed by Degarelix 80 mg, injection, subcutaneously, once every 4 weeks beginning on Day 1 Week 5 up to Day 1 Week 21.
38
Total103

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up10
Overall StudyWithdrawal by Subject10

Baseline characteristics

CharacteristicExperimental: TAK-385 120 mgTotalExperimental: Degarelix 80 mg
Age, Customized
18 to 64 years
9 participants16 participants7 participants
Age, Customized
65 to 84 years
55 participants86 participants31 participants
Age, Customized
Greater than or equal to (>=) 85 years
1 participants1 participants0 participants
Diagnosis of Primary Tumor at Study entry
Not available
11 participants19 participants8 participants
Diagnosis of Primary Tumor at Study entry
T1
1 participants2 participants1 participants
Diagnosis of Primary Tumor at Study entry
T1a
0 participants1 participants1 participants
Diagnosis of Primary Tumor at Study entry
T1c
20 participants30 participants10 participants
Diagnosis of Primary Tumor at Study entry
T2
6 participants11 participants5 participants
Diagnosis of Primary Tumor at Study entry
T2a
12 participants15 participants3 participants
Diagnosis of Primary Tumor at Study entry
T2b
7 participants8 participants1 participants
Diagnosis of Primary Tumor at Study entry
T2c
7 participants14 participants7 participants
Diagnosis of Primary Tumor at Study entry
T3
0 participants1 participants1 participants
Diagnosis of Primary Tumor at Study entry
T3a
1 participants1 participants0 participants
Diagnosis of Primary Tumor at Study entry
TX
0 participants1 participants1 participants
Eastern Cooperative Oncology Group (ECOG) Performance status
Grade 0
60 participants93 participants33 participants
Eastern Cooperative Oncology Group (ECOG) Performance status
Grade 1
4 participants8 participants4 participants
Eastern Cooperative Oncology Group (ECOG) Performance status
Missing
1 participants2 participants1 participants
Ethnicity (NIH/OMB)
Hispanic or Latino
2 Participants5 Participants3 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
62 Participants97 Participants35 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
1 Participants1 Participants0 Participants
Initial diagnosis: Distant Metastasis (M)
M0
56 participants90 participants34 participants
Initial diagnosis: Distant Metastasis (M)
Not available
9 participants13 participants4 participants
Initial diagnosis of Primary Tumor (T)
Not available
7 participants8 participants1 participants
Initial diagnosis of Primary Tumor (T)
T1
2 participants5 participants3 participants
Initial diagnosis of Primary Tumor (T)
T1a
0 participants1 participants1 participants
Initial diagnosis of Primary Tumor (T)
T1c
24 participants40 participants16 participants
Initial diagnosis of Primary Tumor (T)
T2
4 participants8 participants4 participants
Initial diagnosis of Primary Tumor (T)
T2a
13 participants15 participants2 participants
Initial diagnosis of Primary Tumor (T)
T2b
7 participants9 participants2 participants
Initial diagnosis of Primary Tumor (T)
T2c
8 participants15 participants7 participants
Initial diagnosis of Primary Tumor (T)
T3
0 participants2 participants2 participants
Initial diagnosis: Regional Lymph Nodes (N)
N0
41 participants59 participants18 participants
Initial diagnosis: Regional Lymph Nodes (N)
Not available
8 participants10 participants2 participants
Initial diagnosis: Regional Lymph Nodes (N)
NX
16 participants34 participants18 participants
Primary Gleason Score
Primary grade 3
28 participants46 participants18 participants
Primary Gleason Score
Primary grade 4
24 participants39 participants15 participants
Primary Gleason Score
Primary grade missing
13 participants18 participants5 participants
Prostate Cancer Type
Adenocarcinoma insitu,Not otherwise specified(NOS)
5 participants6 participants1 participants
Prostate Cancer Type
Adenocarcinoma, NOS
59 participants96 participants37 participants
Prostate Cancer Type
Other
1 participants1 participants0 participants
Race/Ethnicity, Customized
Black or African American
7 participants14 participants7 participants
Race/Ethnicity, Customized
White
58 participants89 participants31 participants
Secondary Gleason Score
Secondary grade 3
22 participants34 participants12 participants
Secondary Gleason Score
Secondary grade 4
28 participants47 participants19 participants
Secondary Gleason Score
Secondary grade 5
2 participants4 participants2 participants
Secondary Gleason Score
Secondary grade missing
13 participants18 participants5 participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants
Sex: Female, Male
Male
65 Participants103 Participants38 Participants
Study entry: M
M0
51 participants79 participants28 participants
Study entry: M
Not available
14 participants24 participants10 participants
Study entry: N
N0
39 participants58 participants19 participants
Study entry: N
Not available
13 participants22 participants9 participants
Study entry: N
NX
13 participants23 participants10 participants
Total Gleason Score
Total Gleason score 6
5 participants7 participants2 participants
Total Gleason Score
Total Gleason score 7
40 participants66 participants26 participants
Total Gleason Score
Total Gleason score 8
5 participants8 participants3 participants
Total Gleason Score
Total Gleason score 9
2 participants4 participants2 participants
Total Gleason Score
Total Gleason score missing
13 participants18 participants5 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
56 / 6537 / 38
serious
Total, serious adverse events
1 / 653 / 38

Outcome results

Primary

Percentage of Participants With Effective Castration Rate Over 25 Weeks

Castration rate is defined as the observed percentage of participants who have testosterone concentrations less than (\<) 50 nanogram per deciliter (ng/dL) (1.73 nanomole per liter \[nmol/L\]) at all scheduled visits.

Time frame: Day 1 Week 5 up to Day 1 Week 25

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (NUMBER)
Experimental: TAK-385 120 mgPercentage of Participants With Effective Castration Rate Over 25 Weeks95 percentage of participants
Experimental: Degarelix 80 mgPercentage of Participants With Effective Castration Rate Over 25 Weeks89 percentage of participants
Secondary

Average Percent Change in Prostate Size

Percent change in prostate size was assessed at a follow up visit between Day 1 Week 9 to Day 1 Week 13.

Time frame: Baseline, Day 1 Week 9 to Day 1 Week 13

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (MEAN)Dispersion
Experimental: TAK-385 120 mgAverage Percent Change in Prostate Size-25.1 percent changeStandard Deviation 20.03
Experimental: Degarelix 80 mgAverage Percent Change in Prostate Size-27.2 percent changeStandard Deviation 25.88
Secondary

Change From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) Score

EORTC QLQ-PR25 : EORTC module designed to supplement the QLQ-C30 for any application in prostate cancer. It Consist of 25 questions distributed on 6 domains: urinary symptoms (8 items), incontinence aid (1 item), bowel symptoms (4 items), hormonal treatment-related symptoms (HTRS) (6 items), sexual activity (2 items), and sexual functioning (4 items). Questions used 4 point scale (1 'Not at all' to 4 'Very much'). All raw domain scores are linearly transformed to a 0-100 scale, with higher scores reflecting either more symptoms (urinary, bowel, hormonal treatment-related symptoms) or higher levels of activity or functioning (sexual).

Time frame: Baseline and last post-baseline value up to Week 37

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 56.55 units on scaleStandard Error 1.275
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 29-19.06 units on scaleStandard Error 2.948
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 1310.06 units on scaleStandard Error 1.275
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 13-17.43 units on scaleStandard Error 2.967
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 2513.34 units on scaleStandard Error 1.276
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 33-12.40 units on scaleStandard Error 2.952
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 2911.53 units on scaleStandard Error 1.27
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 5-9.78 units on scaleStandard Error 2.957
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 339.62 units on scaleStandard Error 1.273
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 37-6.60 units on scaleStandard Error 2.957
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 378.67 units on scaleStandard Error 1.276
Experimental: TAK-385 120 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 25-19.32 units on scaleStandard Error 2.978
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 3711.31 units on scaleStandard Error 1.641
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 5-9.53 units on scaleStandard Error 3.823
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 13-11.54 units on scaleStandard Error 3.816
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 29-5.12 units on scaleStandard Error 3.784
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 33-9.94 units on scaleStandard Error 3.784
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 37-6.00 units on scaleStandard Error 3.784
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 57.02 units on scaleStandard Error 1.651
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 139.98 units on scaleStandard Error 1.648
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 2512.48 units on scaleStandard Error 1.641
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 2910.43 units on scaleStandard Error 1.641
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreHTRS: Day 1 Week 3310.72 units on scaleStandard Error 1.641
Experimental: Degarelix 80 mgChange From Baseline in 25-item Prostate Cancer-specific Questionnaire Supplement (EORTC QLQ-PR25) ScoreSexual activity: Day 1 Week 25-12.57 units on scaleStandard Error 3.784
Secondary

Change From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) Score

EORTC QLQ-C30 included 30 questions comprising 9 multi-item scales: 5 functional scales (physical, role, cognitive, emotional, and social), 3 symptom scales (fatigue, pain, nausea/vomiting), single items (dyspnoea, appetite loss, insomnia, constipation/diarrhea and financial difficulties) and a global health and QOL scale. Most questions used 4 point scale (1 'Not at all' to 4 'Very much'); 2 questions used 7-point scale (1 'Very poor' to 7 'Excellent'). All domain scores were calculated as an average of item scores and transformed to 0-100 score range where a high score from 0-100 indicates: A high score for a functional scale represents a high / healthy level of functioning, a high score for the global health status/quality of life (QoL) represents a high QoL, but a high score for a symptom scale/item represents a high level of symptomatology/problem.

Time frame: Baseline and last post-baseline value up to Week 37

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (LEAST_SQUARES_MEAN)Dispersion
Experimental: TAK-385 120 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 5-5.10 units on scaleStandard Error 1.833
Experimental: TAK-385 120 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 13-4.29 units on scaleStandard Error 1.837
Experimental: TAK-385 120 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 25-10.04 units on scaleStandard Error 1.842
Experimental: TAK-385 120 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 29-7.11 units on scaleStandard Error 1.826
Experimental: TAK-385 120 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 33-6.24 units on scaleStandard Error 1.83
Experimental: TAK-385 120 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 37-7.84 units on scaleStandard Error 1.833
Experimental: Degarelix 80 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 33-6.39 units on scaleStandard Error 2.349
Experimental: Degarelix 80 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 5-0.26 units on scaleStandard Error 2.37
Experimental: Degarelix 80 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 29-8.14 units on scaleStandard Error 2.349
Experimental: Degarelix 80 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 13-4.33 units on scaleStandard Error 2.364
Experimental: Degarelix 80 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 37-6.61 units on scaleStandard Error 2.349
Experimental: Degarelix 80 mgChange From Baseline in European Organisation for Research and Treatment of Cancer Quality of Life Questionnaire - Core 30 (EORTC QLQ-C30) ScoreDay 1 Week 25-7.27 units on scaleStandard Error 2.349
Secondary

Estimated Time to Testosterone Recovery (TTR)

TTR is defined as the time from 1 day after the last dose of TAK-385 or 4 weeks plus 1 day after the last dose of degarelix to testosterone recovery. Testosterone recovery is defined as back to baseline or \>280 ng/dL whichever occurs first. TTR was determined during 12 weeks after the discontinuation of androgen deprivation therapy (ADT).

Time frame: Up to Day 1 Week 37

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (MEDIAN)
Experimental: TAK-385 120 mgEstimated Time to Testosterone Recovery (TTR)91 days
Experimental: Degarelix 80 mgEstimated Time to Testosterone Recovery (TTR)100 days
Secondary

Number of Participants Reporting One or More TEAEs and Serious Adverse Events (SAEs)

Time frame: Baseline up to Week 29

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (NUMBER)
Experimental: TAK-385 120 mgNumber of Participants Reporting One or More TEAEs and Serious Adverse Events (SAEs)TEAEs (including SAEs and non-SAEs)56 participants
Experimental: TAK-385 120 mgNumber of Participants Reporting One or More TEAEs and Serious Adverse Events (SAEs)SAEs1 participants
Experimental: Degarelix 80 mgNumber of Participants Reporting One or More TEAEs and Serious Adverse Events (SAEs)TEAEs (including SAEs and non-SAEs)37 participants
Experimental: Degarelix 80 mgNumber of Participants Reporting One or More TEAEs and Serious Adverse Events (SAEs)SAEs3 participants
Secondary

Number of Participants With PSA Response of >=50% and >=90% Reduction

Prostate-specific Antigen (PSA) response was defined as 50% and 90% reduction from baseline in serum PSA levels.

Time frame: Day 1 Week 13

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (NUMBER)
Experimental: TAK-385 120 mgNumber of Participants With PSA Response of >=50% and >=90% Reduction>=50% reduction64 participants
Experimental: TAK-385 120 mgNumber of Participants With PSA Response of >=50% and >=90% Reduction>=90% reduction36 participants
Experimental: Degarelix 80 mgNumber of Participants With PSA Response of >=50% and >=90% Reduction>=50% reduction37 participants
Experimental: Degarelix 80 mgNumber of Participants With PSA Response of >=50% and >=90% Reduction>=90% reduction18 participants
Secondary

Number of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or Urinalysis

Time frame: Baseline up to Week 29

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (NUMBER)
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisLiver function analyses0 participants
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisReproductive hormone analyses2 participants
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisCarbohydrate tolerance analyses inclusive diabetes1 participants
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisCell marker analyses0 participants
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisPlatelet analyses0 participants
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisRed blood cell analyses1 participants
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisSkeletal and cardiac muscle analyses1 participants
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisUrinalysis not elsewhere classified (NEC)1 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisUrinalysis not elsewhere classified (NEC)0 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisLiver function analyses6 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisPlatelet analyses1 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisReproductive hormone analyses4 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisSkeletal and cardiac muscle analyses0 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisCarbohydrate tolerance analyses inclusive diabetes0 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisRed blood cell analyses0 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Categorized Into Investigations Related to Chemistry, Hematology or UrinalysisCell marker analyses1 participants
Secondary

Number of Participants With TEAEs Related to 12-lead Electrocardiogram (ECG) Findings

Time frame: Baseline up to Week 29

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (NUMBER)
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Related to 12-lead Electrocardiogram (ECG) Findings1 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Related to 12-lead Electrocardiogram (ECG) Findings1 participants
Secondary

Number of Participants With TEAEs Related to Physical Findings

Time frame: Baseline up to Week 29

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (NUMBER)
Experimental: TAK-385 120 mgNumber of Participants With TEAEs Related to Physical Findings5 participants
Experimental: Degarelix 80 mgNumber of Participants With TEAEs Related to Physical Findings1 participants
Secondary

Number of Participants With Treatment-emergent Adverse Events (TEAEs) Related to Vital Signs

Time frame: Baseline up to Week 29

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (NUMBER)
Experimental: TAK-385 120 mgNumber of Participants With Treatment-emergent Adverse Events (TEAEs) Related to Vital Signs2 participants
Experimental: Degarelix 80 mgNumber of Participants With Treatment-emergent Adverse Events (TEAEs) Related to Vital Signs1 participants
Secondary

Percentage of Participants Who Have Recovered to >280 ng/dL Testosterone

Time frame: Day 1 Week 25 up to Day 1 Week 37

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (NUMBER)
Experimental: TAK-385 120 mgPercentage of Participants Who Have Recovered to >280 ng/dL Testosterone48 percentage of participants
Experimental: Degarelix 80 mgPercentage of Participants Who Have Recovered to >280 ng/dL Testosterone13 percentage of participants
Secondary

Percentage of Participants Who Have Recovered to Baseline Value of Testosterone

Time frame: Up to Day 1 Week 37

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (NUMBER)
Experimental: TAK-385 120 mgPercentage of Participants Who Have Recovered to Baseline Value of Testosterone25 percentage of participants
Experimental: Degarelix 80 mgPercentage of Participants Who Have Recovered to Baseline Value of Testosterone11 percentage of participants
Secondary

Percent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale Score

AMS scale is a self-administered questionnaire used to 1) assess symptoms of aging (independent from those that are disease related) between groups of males under different conditions; 2) evaluate the severity of symptoms over time; and 3) measure changes before and after androgen therapy. Each question was answered between none (1) to extremely severe (5) for 17 items from psychological (5 items), somatic (7 items), and sexual (5 items) categories. Total score is sum of all the item scores and range from 17 (minimum) to 85 (maximum), where high score indicated high level of symptoms.

Time frame: Day 1 of Weeks 5, 13, 25, 29, 33 and 37

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
Experimental: TAK-385 120 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 517.347 percent changeStandard Deviation 36.1328
Experimental: TAK-385 120 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 1331.461 percent changeStandard Deviation 41.4029
Experimental: TAK-385 120 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 2543.558 percent changeStandard Deviation 52.4934
Experimental: TAK-385 120 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 2933.692 percent changeStandard Deviation 44.8331
Experimental: TAK-385 120 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1, Week 3324.273 percent changeStandard Deviation 40.0869
Experimental: TAK-385 120 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 3714.562 percent changeStandard Deviation 30.0487
Experimental: Degarelix 80 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1, Week 3340.227 percent changeStandard Deviation 37.9232
Experimental: Degarelix 80 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 519.194 percent changeStandard Deviation 27.8573
Experimental: Degarelix 80 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 2936.950 percent changeStandard Deviation 34.4352
Experimental: Degarelix 80 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 1336.117 percent changeStandard Deviation 33.8115
Experimental: Degarelix 80 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 3740.535 percent changeStandard Deviation 35.3799
Experimental: Degarelix 80 mgPercent Change From Baseline in Aging Male's Symptoms (AMS) Total Scale ScoreDay 1 Week 2548.158 percent changeStandard Deviation 41.2365
Secondary

Percent Change From Baseline in Serum PSA Concentration

Time frame: Baseline, Day 1 of Week 2, 3 , 5, 9, 13, 17, 21, 25, 29, 33 and 37

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 9-84.345 percent changeStandard Deviation 13.7231
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 21-95.837 percent changeStandard Deviation 5.0062
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 5-60.519 percent changeStandard Deviation 34.946
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 25-97.430 percent changeStandard Deviation 3.365
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 13-88.065 percent changeStandard Deviation 10.675
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 29-96.614 percent changeStandard Deviation 4.7552
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 3-35.798 percent changeStandard Deviation 48.5347
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 33-94.697 percent changeStandard Deviation 6.4998
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 17-90.433 percent changeStandard Deviation 10.0884
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 37-94.998 percent changeStandard Deviation 5.6555
Experimental: TAK-385 120 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 2-29.348 percent changeStandard Deviation 21.9312
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 37-97.144 percent changeStandard Deviation 6.6127
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 2-26.756 percent changeStandard Deviation 36.9407
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 3-14.292 percent changeStandard Deviation 108.1051
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 5-64.509 percent changeStandard Deviation 32.5843
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 9-78.364 percent changeStandard Deviation 42.6674
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 13-85.735 percent changeStandard Deviation 14.9181
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 17-87.712 percent changeStandard Deviation 13.8226
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 21-94.347 percent changeStandard Deviation 9.4243
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 25-96.268 percent changeStandard Deviation 7.6796
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 29-96.858 percent changeStandard Deviation 7.5198
Experimental: Degarelix 80 mgPercent Change From Baseline in Serum PSA ConcentrationDay 1 Week 33-97.309 percent changeStandard Deviation 7.321
Secondary

Plasma Concentrations of TAK-385

Time frame: Day 1 Week 1, 2, 3, 5, 9, 13, 17, 25, 33, 37: Pre-dose; Day 1 Week 5, 13: 2 hrs Post-dose; Day 4 Week 1: Pre-dose

Population: Safety population where TAK-385 assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 1: Predose0.1 nanogram per milliliter (ng/mL)Standard Deviation 0.84
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 2: Predose11.9 nanogram per milliliter (ng/mL)Standard Deviation 19.69
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 3: Predose10.4 nanogram per milliliter (ng/mL)Standard Deviation 10.16
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 5: Predose9.3 nanogram per milliliter (ng/mL)Standard Deviation 12.52
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 5: 2 hrs post-dose36.4 nanogram per milliliter (ng/mL)Standard Deviation 38.14
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 9: Predose11.4 nanogram per milliliter (ng/mL)Standard Deviation 18.48
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 13: Predose8.2 nanogram per milliliter (ng/mL)Standard Deviation 6.25
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 13: 2 hrs post-dose35.8 nanogram per milliliter (ng/mL)Standard Deviation 37.33
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 17: Predose8.7 nanogram per milliliter (ng/mL)Standard Deviation 7.44
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 25: Predose9.5 nanogram per milliliter (ng/mL)Standard Deviation 7.78
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 29: Predose0.3 nanogram per milliliter (ng/mL)Standard Deviation 0.38
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 33: Predose0.1 nanogram per milliliter (ng/mL)Standard Deviation 0.1
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 1 Week 37: Predose0.1 nanogram per milliliter (ng/mL)Standard Deviation 0.05
Experimental: TAK-385 120 mgPlasma Concentrations of TAK-385Day 4 Week 1: Predose10.5 nanogram per milliliter (ng/mL)Standard Deviation 16.35
Secondary

PSA Nadir

Time frame: Baseline up to Day 1 Week 25

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (MEAN)Dispersion
Experimental: TAK-385 120 mgPSA Nadir0.3 microgram per liter (mcg/L)Standard Deviation 0.72
Experimental: Degarelix 80 mgPSA Nadir0.3 microgram per liter (mcg/L)Standard Deviation 0.41
Secondary

Serum Follicle-Stimulating Hormone (FSH) Level

Time frame: Baseline, Day 1 of Week 2, 5, 13, 25 and 29

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
Experimental: TAK-385 120 mgSerum Follicle-Stimulating Hormone (FSH) LevelBaseline11.826 International units per liter (IU/L)Standard Deviation 17.3909
Experimental: TAK-385 120 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 22.363 International units per liter (IU/L)Standard Deviation 2.9647
Experimental: TAK-385 120 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 50.706 International units per liter (IU/L)Standard Deviation 0.9289
Experimental: TAK-385 120 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 130.849 International units per liter (IU/L)Standard Deviation 1.1728
Experimental: TAK-385 120 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 251.475 International units per liter (IU/L)Standard Deviation 2.1842
Experimental: TAK-385 120 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 297.427 International units per liter (IU/L)Standard Deviation 5.4105
Experimental: Degarelix 80 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 251.471 International units per liter (IU/L)Standard Deviation 1.7437
Experimental: Degarelix 80 mgSerum Follicle-Stimulating Hormone (FSH) LevelBaseline11.716 International units per liter (IU/L)Standard Deviation 14.7839
Experimental: Degarelix 80 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 131.108 International units per liter (IU/L)Standard Deviation 1.3469
Experimental: Degarelix 80 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 22.519 International units per liter (IU/L)Standard Deviation 2.818
Experimental: Degarelix 80 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 292.032 International units per liter (IU/L)Standard Deviation 1.9114
Experimental: Degarelix 80 mgSerum Follicle-Stimulating Hormone (FSH) LevelDay 1 Week 50.973 International units per liter (IU/L)Standard Deviation 1.0951
Secondary

Serum Luteinizing Hormone (LH) Level

Time frame: Baseline, Day 1 of Weeks 2, 3, 5, 9, 13, 17, 21, 25, 29, and 37

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 130.180 milli-international units per milliliterStandard Deviation 0.3979
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 20.388 milli-international units per milliliterStandard Deviation 0.4167
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 170.184 milli-international units per milliliterStandard Deviation 0.369
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 210.199 milli-international units per milliliterStandard Deviation 0.467
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 50.178 milli-international units per milliliterStandard Deviation 0.2547
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 250.325 milli-international units per milliliterStandard Deviation 0.7243
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelBaseline5.838 milli-international units per milliliterStandard Deviation 5.0647
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 294.204 milli-international units per milliliterStandard Deviation 3.3259
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 90.198 milli-international units per milliliterStandard Deviation 0.4677
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 379.441 milli-international units per milliliterStandard Deviation 5.6144
Experimental: TAK-385 120 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 30.223 milli-international units per milliliterStandard Deviation 0.382
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 371.036 milli-international units per milliliterStandard Deviation 1.4907
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelBaseline6.943 milli-international units per milliliterStandard Deviation 7.6683
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 20.539 milli-international units per milliliterStandard Deviation 0.7122
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 30.362 milli-international units per milliliterStandard Deviation 0.5648
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 50.252 milli-international units per milliliterStandard Deviation 0.328
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 90.333 milli-international units per milliliterStandard Deviation 0.5649
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 130.265 milli-international units per milliliterStandard Deviation 0.5073
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 210.294 milli-international units per milliliterStandard Deviation 0.5523
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 250.342 milli-international units per milliliterStandard Deviation 0.6248
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 290.464 milli-international units per milliliterStandard Deviation 0.5756
Experimental: Degarelix 80 mgSerum Luteinizing Hormone (LH) LevelDay 1 Week 170.283 milli-international units per milliliterStandard Deviation 0.5461
Secondary

Serum PSA Concentration

Time frame: Day 1 of Week 13, 25, 29, 33 and 37

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
Experimental: TAK-385 120 mgSerum PSA ConcentrationDay 1 Week 131.104 mcg/LStandard Deviation 1.3287
Experimental: TAK-385 120 mgSerum PSA ConcentrationDay 1 Week 290.268 mcg/LStandard Deviation 0.3357
Experimental: TAK-385 120 mgSerum PSA ConcentrationDay 1 Week 250.223 mcg/LStandard Deviation 0.3343
Experimental: TAK-385 120 mgSerum PSA ConcentrationDay 1 Week 330.431 mcg/LStandard Deviation 0.5455
Experimental: TAK-385 120 mgSerum PSA ConcentrationDay 1 Week 370.410 mcg/LStandard Deviation 0.4635
Experimental: Degarelix 80 mgSerum PSA ConcentrationDay 1 Week 330.183 mcg/LStandard Deviation 0.3503
Experimental: Degarelix 80 mgSerum PSA ConcentrationDay 1 Week 370.210 mcg/LStandard Deviation 0.3325
Experimental: Degarelix 80 mgSerum PSA ConcentrationDay 1 Week 131.486 mcg/LStandard Deviation 2.1381
Experimental: Degarelix 80 mgSerum PSA ConcentrationDay 1 Week 250.274 mcg/LStandard Deviation 0.4448
Experimental: Degarelix 80 mgSerum PSA ConcentrationDay 1 Week 290.211 mcg/LStandard Deviation 0.3653
Secondary

Serum Sex Hormone-Binding Globulin (SHBG) Level

Time frame: Baseline, Day 1 of Week 2, 5, 13, 25 and 29

Population: Safety population where baseline and post-baseline assessments were available. Safety population included all participants who received at least one dose of study medication.

ArmMeasureGroupValue (MEAN)Dispersion
Experimental: TAK-385 120 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelBaseline45.528 nmol/LStandard Deviation 21.3167
Experimental: TAK-385 120 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 249.474 nmol/LStandard Deviation 22.3975
Experimental: TAK-385 120 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 546.797 nmol/LStandard Deviation 22.6572
Experimental: TAK-385 120 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 1346.083 nmol/LStandard Deviation 24.6853
Experimental: TAK-385 120 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 2546.258 nmol/LStandard Deviation 25.0679
Experimental: TAK-385 120 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 2943.329 nmol/LStandard Deviation 20.8
Experimental: Degarelix 80 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 2544.305 nmol/LStandard Deviation 22.2005
Experimental: Degarelix 80 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelBaseline41.784 nmol/LStandard Deviation 17.8412
Experimental: Degarelix 80 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 1342.992 nmol/LStandard Deviation 19.2416
Experimental: Degarelix 80 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 243.386 nmol/LStandard Deviation 15.9911
Experimental: Degarelix 80 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 2942.739 nmol/LStandard Deviation 21.911
Experimental: Degarelix 80 mgSerum Sex Hormone-Binding Globulin (SHBG) LevelDay 1 Week 541.778 nmol/LStandard Deviation 15.7575
Secondary

Time to Achieve Effective Castration

Time to effective castration is defined as days from first dose to first testosterone measurement that is \<50 ng/dL.

Time frame: Baseline up to Week 37

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (MEDIAN)
Experimental: TAK-385 120 mgTime to Achieve Effective Castration4 days
Experimental: Degarelix 80 mgTime to Achieve Effective Castration3 days
Secondary

Time to Achieve Profound Castration

Time to profound castration is defined as days from first dose to first testosterone measurement that is \<20 ng/dL.

Time frame: Baseline up to Week 37

Population: Safety population included all participants who received at least one dose of study medication.

ArmMeasureValue (MEDIAN)
Experimental: TAK-385 120 mgTime to Achieve Profound Castration15 days
Experimental: Degarelix 80 mgTime to Achieve Profound Castration12 days

Source: ClinicalTrials.gov · Data processed: Mar 2, 2026