Skip to content

Safety and Efficacy of BGS649 in Male Obese Subjects With Hypogonadotropic Hypogonadism

A Phase IIb Multicentre, Double-Blind, Dose-Ranging, Randomised, Placebo-Controlled Study Evaluating Safety and Efficacy of BGS649 in Male Obese Subjects With Hypogonadotropic Hypogonadism

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02730169
Enrollment
271
Registered
2016-04-06
Start date
2016-05-12
Completion date
2018-05-19
Last updated
2022-09-14

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

Conditions

Hypogonadotropic Hypogonadism

Keywords

Hypogonadotropic, hypogonadism, testosterone

Brief summary

The purpose of this study is to evaluate the safety and efficacy of BGS649 in male obese subjects with hypogonadotropic hypogonadism. All subjects will be treated for a maximum of 24 weeks. Some subjects who complete 24 weeks of treatment will be invited to participate in a 6-month blinded safety extension study (Protocol MBGS206). The study is planned to enroll 268 subjects.

Interventions

DRUGBGS649

Capsules were taken weekly for a maximum of 24 weeks

DRUGPlacebo

Capsules were taken weekly for a maximum of 24 weeks

Sponsors

Mereo BioPharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
MALE
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Adult male subject aged 18 to 65 years inclusive * BMI \> 30 kg/m2 and \< 50 kg/m2 * Serum total testosterone concentration below the normal range * LH levels below the upper limit of normal * Oestradiol levels within or above the normal range of approved assay * At least two symptoms of androgen deficiency present for at least 2 months prior to the first Screening Visit, with at least one of these being a sexual dysfunction

Exclusion criteria

* Evidence of clinically significant endocrinopathy at screening that may interfere with the study assessments * Other types of hypogonadotropic hypogonadism or primary hypogonadism * Any other pituitary or hypothalamic disease

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Patients With Normalised Testosterone After 24 Weeks of Study Treatment24 weeks of treatmentPercentage of patients with normalised testosterone i.e. testosterone in the range 300-1000ng/dL after 24 weeks of study treatment. The primary objective was considered met, if greater than or equal to 75% of the participants in any arm normalised.

Secondary

MeasureTime frameDescription
Proportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Baseline, Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeksTestosterone overshoot was defined as total testosterone above 1000 ng/dL (35 nmol/L). Samples were collected in the morning before 11 am pre dose.
The Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Baseline, Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeksNormalised total testosterone level was defined as between 300-1000 ng/dL (10.4-35 nmol/L) inclusive. Levels \>1000 ng/dL were considered super-physiological outside the normal range.
Normalization of Total Testosterone Serum Concentrations in ≥ 90% Subjects After 24 Weeks of Treatment.24 weeks of treatmentNormalized total testosterone level was defined as between 300-1000 ng/dL (10.4-35 nmol/L) inclusive. Levels \>1000 ng/dL were considered super-physiological outside the normal range. This secondary outcome measure was considered to have been met for a dose if ≥ 90% of subjects in the intent-to-treat (ITT) population had normalisation of total testosterone levels at Week 24.
Mean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeksLH was measured at screening, baseline. The Baseline was defined as the last non-missing value collected before the first study treatment administration, including unscheduled assessments.
Mean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeksFSH was measured at baseline, Visit 1 through 8 and follow-up. Baseline was defined as the last non-missing value collected before the first study treatment administration, including unscheduled assessments.
Descriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Week 12 (pre-dose and 1 hour post-dose), week 24 and week 24/End of treatmentPlasma PK sampling for BGS649 was performed at Weeks 12 and 24. BGS649 PK plasma concentrations were summarised for the PK population by descriptive statistics.
Descriptive Summary (Geometric Mean [95% CI]) of BGS649 Semen PK Concentration Values at 24 Weeks.Week 24 and week 24/End of treatmentSemen PK sampling for BGS649 was performed at Visit 8 (End of Treatment). BGS649 PK semen concentrations were summarised for the PK population by descriptive statistics.

Other

MeasureTime frameDescription
Mean (SD) Change From Baseline in Haematocrit to Week 24.Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeksHaematocrit was measured alongside other haematology parameters at screening, baseline, Visits 1 through 8 and at follow-up.
Mean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Screening to Week 24Summary of DEXA Scan T-score at Visit 8 (Week 24) in the hip, femoral neck, and lumber spine. DEXA T-score was calculated based on actual measured bone density value and compared to a standard reference range for healthy young adult men. A bone density scan compares bone density with the bone density expected for a young healthy adult or a healthy adult of the same age, gender and ethnicity. The difference is calculated as a standard deviation (SD) score. The measures between the bone density and the expected value of a young healthy adult is known as the T score. The World Health Organization (WHO) classifies T scores as follows: * above -1 SD is normal * between -1 and -2.5 SD is defined as mildly reduced bone mineral density (BMD) compared with peak bone mass (PBM) * at or below -2.5 SD is defined as osteoporosis
Mean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Screening to Week 24Descriptive statistics were presented for the following bone turnover marker parameters: type I collagen C-telopeptides, procollagen 1 N-terminal propeptide, osteocalcin, and bone specific alkaline phosphatase.
Change From Baseline in Bone Specific Alkaline Phosphatase at Week 24.24 weeksChange from baseline in bone specific alkaline phosphatase at week 24 measured in U/L
Mean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Baseline, Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeksPSA was measured alongside other clinical chemistry parameters at screening, baseline, Visits 1 through 8 and at follow-up.
Mean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Screening to Week 24Summary of DEXA scan density at Visit 8 (Week 24) in the hip, femoral neck, and lumber spine. Bone density was evaluated with standard procedure for Hologic and General Electric Lunar scanners.

Countries

Italy, Spain, United Kingdom, United States

Participant flow

Participants by arm

ArmCount
BGS649 0.1 mg
BGS649 0.1 mg weekly (1 BGS649 0.1 mg capsule and 2 indistinguishable placebo capsules) BGS649: Capsules will be taken weekly for a maximum of 24 weeks
67
BGS649 0.3 mg
BGS649 0.3 mg weekly (3 BGS649 0.1 mg capsules) BGS649: Capsules will be taken weekly for a maximum of 24 weeks
66
BGS649 1.0 mg
BGS649 1.0 mg weekly (1 BGS649 1.0 mg capsule and 2 indistinguishable placebo capsules) BGS649: Capsules will be taken weekly for a maximum of 24 weeks
67
Placebo
Placebo weekly (3 indistinguishable placebo capsules) Placebo: Capsules will be taken weekly for a maximum of 24 weeks
71
Total271

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003
Overall StudyAdverse Event2330
Overall StudyAdverse Event of Special Interest0120
Overall StudyLost to Follow-up5656
Overall StudyOther0011
Overall StudyProtocol Violation1001
Overall StudyWithdrawal by Subject61168

Baseline characteristics

CharacteristicBGS649 0.1 mgTotalPlaceboBGS649 1.0 mgBGS649 0.3 mg
Age, Continuous51.4 years
STANDARD_DEVIATION 8.39
50.8 years
STANDARD_DEVIATION 8.69
50.9 years
STANDARD_DEVIATION 9.17
49.6 years
STANDARD_DEVIATION 9.72
51.6 years
STANDARD_DEVIATION 7.31
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants1 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants4 Participants0 Participants2 Participants2 Participants
Race (NIH/OMB)
Black or African American
12 Participants47 Participants7 Participants15 Participants13 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants0 Participants1 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants6 Participants3 Participants0 Participants2 Participants
Race (NIH/OMB)
White
53 Participants212 Participants61 Participants49 Participants49 Participants
Sex: Female, Male
Female
0 Participants0 Participants0 Participants0 Participants0 Participants
Sex: Female, Male
Male
67 Participants271 Participants71 Participants67 Participants66 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
deaths
Total, all-cause mortality
0 / 670 / 660 / 670 / 71
other
Total, other adverse events
37 / 6739 / 6647 / 6741 / 71
serious
Total, serious adverse events
2 / 672 / 665 / 675 / 71

Outcome results

Primary

Percentage of Patients With Normalised Testosterone After 24 Weeks of Study Treatment

Percentage of patients with normalised testosterone i.e. testosterone in the range 300-1000ng/dL after 24 weeks of study treatment. The primary objective was considered met, if greater than or equal to 75% of the participants in any arm normalised.

Time frame: 24 weeks of treatment

Population: ITT Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
BGS649 0.1 mgPercentage of Patients With Normalised Testosterone After 24 Weeks of Study Treatment59 Participants
BGS649 0.3 mgPercentage of Patients With Normalised Testosterone After 24 Weeks of Study Treatment62 Participants
BGS649 1.0 mgPercentage of Patients With Normalised Testosterone After 24 Weeks of Study Treatment63 Participants
PlaceboPercentage of Patients With Normalised Testosterone After 24 Weeks of Study Treatment7 Participants
Secondary

Descriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.

Plasma PK sampling for BGS649 was performed at Weeks 12 and 24. BGS649 PK plasma concentrations were summarised for the PK population by descriptive statistics.

Time frame: Week 12 (pre-dose and 1 hour post-dose), week 24 and week 24/End of treatment

Population: PK population

ArmMeasureGroupValue (GEOMETRIC_MEAN)
BGS649 0.1 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 5 (Week 12), 1 hour Post-Dose1.43 ng/mL
BGS649 0.1 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 5 (Week 12), Pre-Dose0.73 ng/mL
BGS649 0.1 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 8 (Week 24)0.85 ng/mL
BGS649 0.1 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 8 (Week 24)/End of Treatment0.78 ng/mL
BGS649 0.3 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 8 (Week 24)/End of Treatment2.76 ng/mL
BGS649 0.3 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 5 (Week 12), Pre-Dose2.55 ng/mL
BGS649 0.3 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 5 (Week 12), 1 hour Post-Dose4.39 ng/mL
BGS649 0.3 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 8 (Week 24)2.97 ng/mL
BGS649 1.0 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 5 (Week 12), Pre-Dose8.93 ng/mL
BGS649 1.0 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 8 (Week 24)10.04 ng/mL
BGS649 1.0 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 8 (Week 24)/End of Treatment9.10 ng/mL
BGS649 1.0 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Plasma PK Concentration Values to 24 Weeks.Visit 5 (Week 12), 1 hour Post-Dose14.91 ng/mL
Secondary

Descriptive Summary (Geometric Mean [95% CI]) of BGS649 Semen PK Concentration Values at 24 Weeks.

Semen PK sampling for BGS649 was performed at Visit 8 (End of Treatment). BGS649 PK semen concentrations were summarised for the PK population by descriptive statistics.

Time frame: Week 24 and week 24/End of treatment

Population: PK population

ArmMeasureGroupValue (GEOMETRIC_MEAN)
BGS649 0.1 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Semen PK Concentration Values at 24 Weeks.Visit 8 (Week 24)0.51 ng/mL
BGS649 0.1 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Semen PK Concentration Values at 24 Weeks.Visit 8 (Week 24)/End of Treatment0.49 ng/mL
BGS649 0.3 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Semen PK Concentration Values at 24 Weeks.Visit 8 (Week 24)1.95 ng/mL
BGS649 0.3 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Semen PK Concentration Values at 24 Weeks.Visit 8 (Week 24)/End of Treatment1.58 ng/mL
BGS649 1.0 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Semen PK Concentration Values at 24 Weeks.Visit 8 (Week 24)5.81 ng/mL
BGS649 1.0 mgDescriptive Summary (Geometric Mean [95% CI]) of BGS649 Semen PK Concentration Values at 24 Weeks.Visit 8 (Week 24)/End of Treatment5.28 ng/mL
Secondary

Mean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.

FSH was measured at baseline, Visit 1 through 8 and follow-up. Baseline was defined as the last non-missing value collected before the first study treatment administration, including unscheduled assessments.

Time frame: Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeks

Population: ITT Population

ArmMeasureGroupValue (MEAN)Dispersion
BGS649 0.1 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 2 (Day 8)3.553 mIU/mLStandard Deviation 2.2022
BGS649 0.1 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 3 (Week 4)4.158 mIU/mLStandard Deviation 2.1353
BGS649 0.1 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 5 (Week 12)4.809 mIU/mLStandard Deviation 2.5582
BGS649 0.1 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 4 (Week 8)4.318 mIU/mLStandard Deviation 2.4147
BGS649 0.1 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 8 (Week 24)4.836 mIU/mLStandard Deviation 2.6901
BGS649 0.1 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 7 (Week 20)5.059 mIU/mLStandard Deviation 2.5714
BGS649 0.1 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 6 (Week 16)5.188 mIU/mLStandard Deviation 2.6876
BGS649 0.3 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 8 (Week 24)6.183 mIU/mLStandard Deviation 3.4817
BGS649 0.3 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 3 (Week 4)5.540 mIU/mLStandard Deviation 2.8344
BGS649 0.3 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 6 (Week 16)6.350 mIU/mLStandard Deviation 3.4261
BGS649 0.3 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 2 (Day 8)4.575 mIU/mLStandard Deviation 2.0756
BGS649 0.3 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 4 (Week 8)5.878 mIU/mLStandard Deviation 2.9916
BGS649 0.3 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 5 (Week 12)5.768 mIU/mLStandard Deviation 3.2474
BGS649 0.3 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 7 (Week 20)6.073 mIU/mLStandard Deviation 3.5199
BGS649 1.0 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 4 (Week 8)7.620 mIU/mLStandard Deviation 4.7883
BGS649 1.0 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 8 (Week 24)8.282 mIU/mLStandard Deviation 7.0523
BGS649 1.0 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 6 (Week 16)8.045 mIU/mLStandard Deviation 6.1773
BGS649 1.0 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 7 (Week 20)8.409 mIU/mLStandard Deviation 6.6502
BGS649 1.0 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 3 (Week 4)6.551 mIU/mLStandard Deviation 4.2155
BGS649 1.0 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 5 (Week 12)8.132 mIU/mLStandard Deviation 5.9526
BGS649 1.0 mgMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 2 (Day 8)5.307 mIU/mLStandard Deviation 2.8315
PlaceboMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 2 (Day 8)-0.51 mIU/mLStandard Deviation 0.8273
PlaceboMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 4 (Week 8)0.047 mIU/mLStandard Deviation 1.2241
PlaceboMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 6 (Week 16)-0.165 mIU/mLStandard Deviation 1.1924
PlaceboMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 5 (Week 12)-0.075 mIU/mLStandard Deviation 1.0723
PlaceboMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 8 (Week 24)0.038 mIU/mLStandard Deviation 1.2164
PlaceboMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 3 (Week 4)-0.111 mIU/mLStandard Deviation 1.0638
PlaceboMean (SD) Change From Baseline in Follicle Stimulating Hormone (FSH) to Week 24.Visit 7 (Week 20)-0.030 mIU/mLStandard Deviation 1.0932
Secondary

Mean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.

LH was measured at screening, baseline. The Baseline was defined as the last non-missing value collected before the first study treatment administration, including unscheduled assessments.

Time frame: Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeks

Population: ITT Population

ArmMeasureGroupValue (MEAN)Dispersion
BGS649 0.1 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 2 (Day 8)1.680 mIU/mLStandard Deviation 1.7503
BGS649 0.1 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 3 (Week 4)2.237 mIU/mLStandard Deviation 2.1982
BGS649 0.1 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 4 (Week 8)2.272 mIU/mLStandard Deviation 2.1908
BGS649 0.1 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 5 (Week 12)2.503 mIU/mLStandard Deviation 2.223
BGS649 0.1 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 6 (Week 16)2.557 mIU/mLStandard Deviation 1.6964
BGS649 0.1 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 7 (Week 20)2.553 mIU/mLStandard Deviation 2.238
BGS649 0.1 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 8 (Week 24)2.108 mIU/mLStandard Deviation 1.9892
BGS649 0.3 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 3 (Week 4)3.626 mIU/mLStandard Deviation 2.6519
BGS649 0.3 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 4 (Week 8)3.653 mIU/mLStandard Deviation 3.0907
BGS649 0.3 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 5 (Week 12)3.511 mIU/mLStandard Deviation 3.705
BGS649 0.3 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 8 (Week 24)3.560 mIU/mLStandard Deviation 3.6138
BGS649 0.3 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 6 (Week 16)3.704 mIU/mLStandard Deviation 3.6269
BGS649 0.3 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 7 (Week 20)3.653 mIU/mLStandard Deviation 3.7381
BGS649 0.3 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 2 (Day 8)2.095 mIU/mLStandard Deviation 1.3719
BGS649 1.0 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 5 (Week 12)5.064 mIU/mLStandard Deviation 3.9739
BGS649 1.0 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 3 (Week 4)5.235 mIU/mLStandard Deviation 4.8684
BGS649 1.0 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 7 (Week 20)4.884 mIU/mLStandard Deviation 3.9297
BGS649 1.0 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 6 (Week 16)5.004 mIU/mLStandard Deviation 4.3397
BGS649 1.0 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 2 (Day 8)3.309 mIU/mLStandard Deviation 1.82
BGS649 1.0 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 4 (Week 8)5.676 mIU/mLStandard Deviation 4.1471
BGS649 1.0 mgMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 8 (Week 24)5.209 mIU/mLStandard Deviation 4.4894
PlaceboMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 4 (Week 8)-0.169 mIU/mLStandard Deviation 1.5237
PlaceboMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 2 (Day 8)-0.183 mIU/mLStandard Deviation 1.3531
PlaceboMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 6 (Week 16)-0.395 mIU/mLStandard Deviation 1.4793
PlaceboMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 3 (Week 4)-0.385 mIU/mLStandard Deviation 1.2423
PlaceboMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 7 (Week 20)-0.193 mIU/mLStandard Deviation 1.3585
PlaceboMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 5 (Week 12)-0.341 mIU/mLStandard Deviation 1.4575
PlaceboMean (SD) Change From Baseline in Luteinizing Hormone (LH) to Week 24.Visit 8 (Week 24)-0.043 mIU/mLStandard Deviation 1.5575
Secondary

Normalization of Total Testosterone Serum Concentrations in ≥ 90% Subjects After 24 Weeks of Treatment.

Normalized total testosterone level was defined as between 300-1000 ng/dL (10.4-35 nmol/L) inclusive. Levels \>1000 ng/dL were considered super-physiological outside the normal range. This secondary outcome measure was considered to have been met for a dose if ≥ 90% of subjects in the intent-to-treat (ITT) population had normalisation of total testosterone levels at Week 24.

Time frame: 24 weeks of treatment

Population: ITT Population

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
BGS649 0.1 mgNormalization of Total Testosterone Serum Concentrations in ≥ 90% Subjects After 24 Weeks of Treatment.59 Participants
BGS649 0.3 mgNormalization of Total Testosterone Serum Concentrations in ≥ 90% Subjects After 24 Weeks of Treatment.62 Participants
BGS649 1.0 mgNormalization of Total Testosterone Serum Concentrations in ≥ 90% Subjects After 24 Weeks of Treatment.63 Participants
PlaceboNormalization of Total Testosterone Serum Concentrations in ≥ 90% Subjects After 24 Weeks of Treatment.7 Participants
Secondary

Proportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24

Testosterone overshoot was defined as total testosterone above 1000 ng/dL (35 nmol/L). Samples were collected in the morning before 11 am pre dose.

Time frame: Baseline, Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeks

Population: ITT population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BGS649 0.1 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Baseline0 Participants
BGS649 0.1 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 2 (Day 8)0 Participants
BGS649 0.1 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 3 (Week 4)0 Participants
BGS649 0.1 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 4 (Week 8)0 Participants
BGS649 0.1 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 5 (Week 12)0 Participants
BGS649 0.1 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 6 (Week 16)0 Participants
BGS649 0.1 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 7 (Week 20)0 Participants
BGS649 0.1 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 8 (Week 24)0 Participants
BGS649 0.3 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 8 (Week 24)0 Participants
BGS649 0.3 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Baseline0 Participants
BGS649 0.3 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 4 (Week 8)0 Participants
BGS649 0.3 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 2 (Day 8)0 Participants
BGS649 0.3 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 7 (Week 20)0 Participants
BGS649 0.3 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 5 (Week 12)0 Participants
BGS649 0.3 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 6 (Week 16)0 Participants
BGS649 0.3 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 3 (Week 4)0 Participants
BGS649 1.0 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 5 (Week 12)2 Participants
BGS649 1.0 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 7 (Week 20)0 Participants
BGS649 1.0 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Baseline0 Participants
BGS649 1.0 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 8 (Week 24)1 Participants
BGS649 1.0 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 4 (Week 8)1 Participants
BGS649 1.0 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 6 (Week 16)2 Participants
BGS649 1.0 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 2 (Day 8)0 Participants
BGS649 1.0 mgProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 3 (Week 4)0 Participants
PlaceboProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 2 (Day 8)0 Participants
PlaceboProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 3 (Week 4)0 Participants
PlaceboProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 4 (Week 8)0 Participants
PlaceboProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 6 (Week 16)1 Participants
PlaceboProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 7 (Week 20)1 Participants
PlaceboProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Baseline0 Participants
PlaceboProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 5 (Week 12)2 Participants
PlaceboProportion of Subjects That Overshoot Testosterone (Total Testosterone Above 1000 ng/dL [35 Nmol/L]) From Baseline to Week 24Visit 8 (Week 24)0 Participants
Secondary

The Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24

Normalised total testosterone level was defined as between 300-1000 ng/dL (10.4-35 nmol/L) inclusive. Levels \>1000 ng/dL were considered super-physiological outside the normal range.

Time frame: Baseline, Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeks

Population: ITT Population

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
BGS649 0.1 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 2 (Day 8)54 Participants
BGS649 0.1 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 7 (Week 20)57 Participants
BGS649 0.1 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 4 (Week 8)63 Participants
BGS649 0.1 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Baseline7 Participants
BGS649 0.1 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 8 (Week 24)59 Participants
BGS649 0.1 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 5 (Week 12)58 Participants
BGS649 0.1 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 3 (Week 4)63 Participants
BGS649 0.1 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 6 (Week 16)57 Participants
BGS649 0.3 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 2 (Day 8)53 Participants
BGS649 0.3 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 6 (Week 16)63 Participants
BGS649 0.3 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Baseline12 Participants
BGS649 0.3 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 3 (Week 4)62 Participants
BGS649 0.3 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 8 (Week 24)62 Participants
BGS649 0.3 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 4 (Week 8)61 Participants
BGS649 0.3 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 5 (Week 12)62 Participants
BGS649 0.3 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 7 (Week 20)63 Participants
BGS649 1.0 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Baseline11 Participants
BGS649 1.0 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 2 (Day 8)57 Participants
BGS649 1.0 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 3 (Week 4)64 Participants
BGS649 1.0 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 5 (Week 12)64 Participants
BGS649 1.0 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 6 (Week 16)63 Participants
BGS649 1.0 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 7 (Week 20)66 Participants
BGS649 1.0 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 8 (Week 24)63 Participants
BGS649 1.0 mgThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 4 (Week 8)65 Participants
PlaceboThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 7 (Week 20)9 Participants
PlaceboThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 4 (Week 8)11 Participants
PlaceboThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 3 (Week 4)10 Participants
PlaceboThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Baseline7 Participants
PlaceboThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 8 (Week 24)7 Participants
PlaceboThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 6 (Week 16)8 Participants
PlaceboThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 5 (Week 12)7 Participants
PlaceboThe Proportion of Subjects That Have Normalization of Total Testosterone Serum Concentrations From Baseline to Week 24Visit 2 (Day 8)7 Participants
Other Pre-specified

Change From Baseline in Bone Specific Alkaline Phosphatase at Week 24.

Change from baseline in bone specific alkaline phosphatase at week 24 measured in U/L

Time frame: 24 weeks

Population: ITT population on all available samples and including all wk 24 and end-of-treatment visit data.

ArmMeasureValue (MEAN)Dispersion
BGS649 0.1 mgChange From Baseline in Bone Specific Alkaline Phosphatase at Week 24.0.15 U/LStandard Deviation 3.187
BGS649 0.3 mgChange From Baseline in Bone Specific Alkaline Phosphatase at Week 24.0.69 U/LStandard Deviation 4.556
BGS649 1.0 mgChange From Baseline in Bone Specific Alkaline Phosphatase at Week 24.0.03 U/LStandard Deviation 3.629
PlaceboChange From Baseline in Bone Specific Alkaline Phosphatase at Week 24.0.29 U/LStandard Deviation 3.197
Other Pre-specified

Mean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.

Descriptive statistics were presented for the following bone turnover marker parameters: type I collagen C-telopeptides, procollagen 1 N-terminal propeptide, osteocalcin, and bone specific alkaline phosphatase.

Time frame: Screening to Week 24

Population: ITT Population. Discrepancies in numbers from the progress flow are due to missing samples either at baseline or wk 24/EOT.

ArmMeasureGroupValue (MEAN)Dispersion
BGS649 0.1 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Osteocalcin0.72 ug/LStandard Deviation 2.891
BGS649 0.1 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Type I Collagen C-Telopeptides0.054 ug/LStandard Deviation 0.1454
BGS649 0.1 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Procollagen 1 N-Terminal Propeptide5.2 ug/LStandard Deviation 8.31
BGS649 0.3 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Osteocalcin0.35 ug/LStandard Deviation 3.801
BGS649 0.3 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Type I Collagen C-Telopeptides0.069 ug/LStandard Deviation 0.1618
BGS649 0.3 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Procollagen 1 N-Terminal Propeptide5.0 ug/LStandard Deviation 11.93
BGS649 1.0 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Type I Collagen C-Telopeptides0.047 ug/LStandard Deviation 0.1342
BGS649 1.0 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Procollagen 1 N-Terminal Propeptide4.3 ug/LStandard Deviation 11.68
BGS649 1.0 mgMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Osteocalcin0.36 ug/LStandard Deviation 3.604
PlaceboMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Type I Collagen C-Telopeptides0.020 ug/LStandard Deviation 0.2087
PlaceboMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Osteocalcin0.30 ug/LStandard Deviation 3.267
PlaceboMean (SD) Change From Baseline in Bone Turnover Markers by Parameter at Week 24.Procollagen 1 N-Terminal Propeptide1.8 ug/LStandard Deviation 11.61
Other Pre-specified

Mean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24

Summary of DEXA scan density at Visit 8 (Week 24) in the hip, femoral neck, and lumber spine. Bone density was evaluated with standard procedure for Hologic and General Electric Lunar scanners.

Time frame: Screening to Week 24

Population: Safety Population

ArmMeasureGroupValue (MEAN)Dispersion
BGS649 0.1 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Hip-0.0026 g/cm^2Standard Deviation 0.0399
BGS649 0.1 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Lumber spine-0.0167 g/cm^2Standard Deviation 0.03174
BGS649 0.1 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Femoral neck-0.0248 g/cm^2Standard Deviation 0.04583
BGS649 0.3 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Hip-0.0020 g/cm^2Standard Deviation 0.03828
BGS649 0.3 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Lumber spine-0.0177 g/cm^2Standard Deviation 0.05018
BGS649 0.3 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Femoral neck-0.0044 g/cm^2Standard Deviation 0.06666
BGS649 1.0 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Femoral neck-0.0116 g/cm^2Standard Deviation 0.05139
BGS649 1.0 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Hip-0.0072 g/cm^2Standard Deviation 0.02724
BGS649 1.0 mgMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Lumber spine-0.0255 g/cm^2Standard Deviation 0.04044
PlaceboMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Hip0.0005 g/cm^2Standard Deviation 0.03315
PlaceboMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Lumber spine0.0100 g/cm^2Standard Deviation 0.04016
PlaceboMean (SD) Change From Baseline in DEXA Scan Density by Location at Week 24Femoral neck0.0028 g/cm^2Standard Deviation 0.02747
Other Pre-specified

Mean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.

Summary of DEXA Scan T-score at Visit 8 (Week 24) in the hip, femoral neck, and lumber spine. DEXA T-score was calculated based on actual measured bone density value and compared to a standard reference range for healthy young adult men. A bone density scan compares bone density with the bone density expected for a young healthy adult or a healthy adult of the same age, gender and ethnicity. The difference is calculated as a standard deviation (SD) score. The measures between the bone density and the expected value of a young healthy adult is known as the T score. The World Health Organization (WHO) classifies T scores as follows: * above -1 SD is normal * between -1 and -2.5 SD is defined as mildly reduced bone mineral density (BMD) compared with peak bone mass (PBM) * at or below -2.5 SD is defined as osteoporosis

Time frame: Screening to Week 24

Population: Safety Population

ArmMeasureGroupValue (MEAN)Dispersion
BGS649 0.1 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Lumber spine-0.12 T-scoreStandard Deviation 0.279
BGS649 0.1 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Femoral neck-0.16 T-scoreStandard Deviation 0.337
BGS649 0.1 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Hip0.01 T-scoreStandard Deviation 0.382
BGS649 0.3 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Hip0.05 T-scoreStandard Deviation 0.315
BGS649 0.3 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Femoral neck0.02 T-scoreStandard Deviation 0.441
BGS649 0.3 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Lumber spine-0.08 T-scoreStandard Deviation 0.381
BGS649 1.0 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Lumber spine-0.22 T-scoreStandard Deviation 0.351
BGS649 1.0 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Hip-0.02 T-scoreStandard Deviation 0.323
BGS649 1.0 mgMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Femoral neck-0.11 T-scoreStandard Deviation 0.392
PlaceboMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Hip0.01 T-scoreStandard Deviation 0.266
PlaceboMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Femoral neck0.03 T-scoreStandard Deviation 0.212
PlaceboMean (SD) Change From Baseline in Dual Energy X-ray Absorptiometry (DEXA) Scan T-score by Location at Week 24.Lumber spine0.07 T-scoreStandard Deviation 0.346
Other Pre-specified

Mean (SD) Change From Baseline in Haematocrit to Week 24.

Haematocrit was measured alongside other haematology parameters at screening, baseline, Visits 1 through 8 and at follow-up.

Time frame: Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeks

Population: Safety Population

ArmMeasureGroupValue (MEAN)Dispersion
BGS649 0.1 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 5 (Week 12)0.0153 RatioStandard Deviation 0.02419
BGS649 0.1 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 6 (Week 16)0.0142 RatioStandard Deviation 0.02195
BGS649 0.1 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 7 (Week 20)0.0195 RatioStandard Deviation 0.02545
BGS649 0.1 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 4 (Week 8)0.0151 RatioStandard Deviation 0.02153
BGS649 0.1 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 8 (Week 24)0.0171 RatioStandard Deviation 0.02612
BGS649 0.1 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 2 (Day 8)-0.0003 RatioStandard Deviation 0.02279
BGS649 0.1 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 3 (Week 4)0.0036 RatioStandard Deviation 0.01855
BGS649 0.3 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 3 (Week 4)0.0024 RatioStandard Deviation 0.02095
BGS649 0.3 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 7 (Week 20)0.0192 RatioStandard Deviation 0.02672
BGS649 0.3 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 8 (Week 24)0.0159 RatioStandard Deviation 0.02621
BGS649 0.3 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 4 (Week 8)0.0162 RatioStandard Deviation 0.02709
BGS649 0.3 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 5 (Week 12)0.0175 RatioStandard Deviation 0.0227
BGS649 0.3 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 6 (Week 16)0.0233 RatioStandard Deviation 0.02408
BGS649 0.3 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 2 (Day 8)0.0014 RatioStandard Deviation 0.01945
BGS649 1.0 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 6 (Week 16)0.0229 RatioStandard Deviation 0.0326
BGS649 1.0 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 5 (Week 12)0.0256 RatioStandard Deviation 0.02906
BGS649 1.0 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 7 (Week 20)0.0187 RatioStandard Deviation 0.03222
BGS649 1.0 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 2 (Day 8)-0.0016 RatioStandard Deviation 0.03487
BGS649 1.0 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 4 (Week 8)0.0258 RatioStandard Deviation 0.03233
BGS649 1.0 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 3 (Week 4)0.0067 RatioStandard Deviation 0.02997
BGS649 1.0 mgMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 8 (Week 24)0.0216 RatioStandard Deviation 0.02587
PlaceboMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 6 (Week 16)-0.0079 RatioStandard Deviation 0.02533
PlaceboMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 3 (Week 4)-0.0024 RatioStandard Deviation 0.02539
PlaceboMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 4 (Week 8)-0.0041 RatioStandard Deviation 0.02383
PlaceboMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 7 (Week 20)-0.0063 RatioStandard Deviation 0.03037
PlaceboMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 8 (Week 24)-0.0032 RatioStandard Deviation 0.02884
PlaceboMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 2 (Day 8)-0.0029 RatioStandard Deviation 0.02374
PlaceboMean (SD) Change From Baseline in Haematocrit to Week 24.Visit 5 (Week 12)-0.0082 RatioStandard Deviation 0.02882
Other Pre-specified

Mean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.

PSA was measured alongside other clinical chemistry parameters at screening, baseline, Visits 1 through 8 and at follow-up.

Time frame: Baseline, Day 8, 4 weeks, 8 weeks, 12 weeks, 16 weeks, 20 weeks and 24 weeks

Population: Safety Population

ArmMeasureGroupValue (MEAN)Dispersion
BGS649 0.1 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 5 (Week 12)0.190 ug/LStandard Deviation 0.3895
BGS649 0.1 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 2 (Day 8)0.045 ug/LStandard Deviation 0.184
BGS649 0.1 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 8 (Week 24)0.218 ug/LStandard Deviation 0.4312
BGS649 0.1 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 7 (Week 20)0.158 ug/LStandard Deviation 0.2913
BGS649 0.1 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 6 (Week 16)0.147 ug/LStandard Deviation 0.2655
BGS649 0.1 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 4 (Week 8)0.166 ug/LStandard Deviation 0.2651
BGS649 0.1 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 3 (Week 4)0.141 ug/LStandard Deviation 0.1742
BGS649 0.3 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 7 (Week 20)0.480 ug/LStandard Deviation 2.6029
BGS649 0.3 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 3 (Week 4)0.082 ug/LStandard Deviation 0.5198
BGS649 0.3 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 4 (Week 8)0.105 ug/LStandard Deviation 0.4747
BGS649 0.3 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 8 (Week 24)0.391 ug/LStandard Deviation 1.8627
BGS649 0.3 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 2 (Day 8)0.040 ug/LStandard Deviation 0.483
BGS649 0.3 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 5 (Week 12)0.271 ug/LStandard Deviation 0.9626
BGS649 0.3 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 6 (Week 16)0.102 ug/LStandard Deviation 0.55
BGS649 1.0 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 4 (Week 8)0.132 ug/LStandard Deviation 0.3343
BGS649 1.0 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 2 (Day 8)0.011 ug/LStandard Deviation 0.4606
BGS649 1.0 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 7 (Week 20)0.116 ug/LStandard Deviation 0.456
BGS649 1.0 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 6 (Week 16)0.160 ug/LStandard Deviation 0.4037
BGS649 1.0 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 8 (Week 24)0.085 ug/LStandard Deviation 0.293
BGS649 1.0 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 3 (Week 4)0.092 ug/LStandard Deviation 0.4338
BGS649 1.0 mgMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 5 (Week 12)0.178 ug/LStandard Deviation 0.5405
PlaceboMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 7 (Week 20)0.022 ug/LStandard Deviation 0.3942
PlaceboMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 4 (Week 8)0.055 ug/LStandard Deviation 0.45
PlaceboMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 5 (Week 12)0.039 ug/LStandard Deviation 0.4382
PlaceboMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 3 (Week 4)0.038 ug/LStandard Deviation 0.27
PlaceboMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 2 (Day 8)0.015 ug/LStandard Deviation 0.2179
PlaceboMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 8 (Week 24)0.067 ug/LStandard Deviation 0.4787
PlaceboMean (SD) Change From Baseline in Prostate Specific Antigen (PSA) to Week 24.Visit 6 (Week 16)0.016 ug/LStandard Deviation 0.2631

Source: ClinicalTrials.gov · Data processed: Feb 21, 2026