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Study to Evaluate the Safety and Efficacy of BA058 (Abaloparatide) for Prevention of Fracture in Postmenopausal Women

A Randomized, Double-blind, Placebo-Controlled, Comparative Multicenter Phase 3 Study to Evaluate the Safety and Efficacy of BA058 (Abaloparatide) for Injection for Prevention of Fracture in Ambulatory Postmenopausal Women With Severe Osteoporosis and at Risk of Fracture

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01343004
Acronym
ACTIVE
Enrollment
2463
Registered
2011-04-27
Start date
2011-04-30
Completion date
2014-10-31
Last updated
2017-03-01

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

Conditions

Osteoporosis, Postmenopausal Osteoporosis

Keywords

BA058, abaloparatide, Abaloparatide-SC, osteoporosis, postmenopausal, bone loss, ACTIVE, fracture

Brief summary

The purpose of this study is to determine whether BA058 (abaloparatide), a parathyroid hormone-related peptide, is effective in preventing fractures in postmenopausal women with severe osteoporosis who are at risk of fractures.

Detailed description

This is a randomized, double-blind, placebo-controlled, comparative Phase 3, multicenter international study to evaluate the efficacy and safety of BA058 (abaloparatide) 80 µg in the prevention of fracture in otherwise healthy ambulatory postmenopausal women with severe osteoporosis.

Interventions

DRUGPlacebo

Placebo 0 mcg subcutaneous daily

DRUGBA058 80 mcg

BA058 80 mcg subcutaneous daily

DRUGteriparatide

teriparatide 20 mcg subcutaneous daily

Sponsors

Radius Health, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
FEMALE
Age
50 Years to 85 Years
Healthy volunteers
No

Inclusion criteria

* Healthy ambulatory postmenopausal (≥ 5 years) women from 50 to 85 years of age (inclusive) with a diagnosis of osteoporosis * The women are to have a bone mineral density (BMD) T score ≤ -2.5 and \> -5.0 at the lumbar spine or hip (femoral neck) by dual energy x-ray absorptiometry (DXA) and radiological evidence of 2 or more mild or one or more moderate lumbar or thoracic vertebral fractures, or history of low trauma forearm, humerus, sacral, pelvic, hip, femoral, or tibial fracture within the past 5 years. Postmenopausal women older than 65 who meet the above fracture criteria but have a T score ≤ -2.0 and \> -5.0 may be enrolled. Women older than 65 who do not meet the fracture criteria may also be enrolled if their T score is ≤ -3.0 and \> -5.0 * Normal physical exam, vital signs, electrocardiogram (ECG) and medical history * Laboratory tests within the normal range including serum calcium, PTH(1-84), serum phosphorus and alkaline phosphatase

Exclusion criteria

* History of more than 4 mild or moderate spine fractures or any severe fracture * Abnormality of the spine or hip that would prohibit assessment of bone mineral density (BMD) * Unexplained elevation of serum alkaline phosphatase, history of bone disorders (such as Paget's disease) or a diagnosis of cancer within the last 5 years (with the exception of basal cell or squamous cancer of the skin) * History of thyroid, parathyroid, or adrenal disorders, or malabsorptive syndromes or any chronic or recurrent diseases or disturbances that would interfere with the interpretation of study data or compromise the safety of the patient * Prior treatment with parathyroid hormone (PTH) or parathyroid hormone-related peptid (PTHrP) * Prior treatment with bisphosphonates, fluoride, or strontium within the past five years or treatment with androgens, anabolic steroids, corticosteroids or selective estrogen receptor modulators within the past 12 months (except hormone replacement therapy) * Prior treatment with an investigational drug within the past 12 months * History of nephrolithiasis or urolithiasis within the past five years, or history of osteosarcoma at any time

Design outcomes

Primary

MeasureTime frame
Number of Participants With New Vertebral Fractures at 18 Months18 months

Secondary

MeasureTime frame
Percent Change in Bone Mineral Density (BMD) of Lumbar Spine From Baseline to 18 MonthsBasline and 18 months
Percent Change in Bone Mineral Density (BMD) of Total Hip From Baseline to Month 18Baseline and 18 months
Percent Change in Bone Mineral Density (BMD) of Femoral Neck From Baseline to Month 18Baseline and 18 months
Number of Participants With Non-vertebral Fractures at 18 Months18 months
Number of Treatment-Emergent Adverse Events Associated With Hypercalcemia at 18 Months18 months

Countries

Argentina, Brazil, Czechia, Denmark, Estonia, Hong Kong, Lithuania, Poland, Romania, United States

Participant flow

Participants by arm

ArmCount
Placebo
Placebo identical in appearance to BA058 study drug Placebo: Placebo 0 mcg subcutaneous daily
821
BA058 80 mcg (Abaloparatide)
BA058 80 mcg: BA058 80 mcg subcutaneous daily
824
Teriparatide
Blinded until after randomization, then open-label teriparatide: teriparatide 20 mcg subcutaneous daily
818
Total2,463

Baseline characteristics

CharacteristicPlaceboBA058 80 mcg (Abaloparatide)TeriparatideTotal
Age, Continuous68.7 years
STANDARD_DEVIATION 6.5
68.9 years
STANDARD_DEVIATION 6.5
68.8 years
STANDARD_DEVIATION 6.6
68.8 years
STANDARD_DEVIATION 6.5
Gender
Female
821 Participants824 Participants818 Participants2463 Participants
Gender
Male
0 Participants0 Participants0 Participants0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
447 / 820492 / 822456 / 818
serious
Total, serious adverse events
90 / 82080 / 82282 / 818

Outcome results

Primary

Number of Participants With New Vertebral Fractures at 18 Months

Time frame: 18 months

Population: Modified intent-to-treat (MITT) population included all patients with pre-treatment and end-of-treatment evaluable radiologic assessment (spine X-ray).

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With New Vertebral Fractures at 18 Months30 participants
BA058 80 mcg (Abaloparatide)Number of Participants With New Vertebral Fractures at 18 Months4 participants
TeriparatideNumber of Participants With New Vertebral Fractures at 18 Months6 participants
p-value: <0.0001Fisher Exact
p-value: <0.0001Fisher Exact
Secondary

Number of Participants With Non-vertebral Fractures at 18 Months

Time frame: 18 months

Population: Intent-to-treat population included all patients who were randomized into the study by assigning the randomized study medication kit on Day 1.

ArmMeasureValue (NUMBER)
PlaceboNumber of Participants With Non-vertebral Fractures at 18 Months33 Participants
BA058 80 mcg (Abaloparatide)Number of Participants With Non-vertebral Fractures at 18 Months18 Participants
TeriparatideNumber of Participants With Non-vertebral Fractures at 18 Months24 Participants
p-value: 0.0318Chi-squared
p-value: 0.2304Chi-squared
p-value: 0.3361Chi-squared
Secondary

Number of Treatment-Emergent Adverse Events Associated With Hypercalcemia at 18 Months

Time frame: 18 months

Population: Safety population included all patients who received 1 or more doses of study medication

ArmMeasureValue (NUMBER)
PlaceboNumber of Treatment-Emergent Adverse Events Associated With Hypercalcemia at 18 Months5 Hypercalcemic events
BA058 80 mcg (Abaloparatide)Number of Treatment-Emergent Adverse Events Associated With Hypercalcemia at 18 Months15 Hypercalcemic events
TeriparatideNumber of Treatment-Emergent Adverse Events Associated With Hypercalcemia at 18 Months34 Hypercalcemic events
Secondary

Percent Change in Bone Mineral Density (BMD) of Femoral Neck From Baseline to Month 18

Time frame: Baseline and 18 months

Population: Intent-to-treat population included all patients who were randomized into the study by assigning the randomized study medication kit on Day 1. Baseline BMD data were missing for some patients; the method of last observation carried forward (LOCF) was used to impute missing data.

ArmMeasureValue (MEAN)Dispersion
PlaceboPercent Change in Bone Mineral Density (BMD) of Femoral Neck From Baseline to Month 18-0.44 percent changeStandard Deviation 3.57
BA058 80 mcg (Abaloparatide)Percent Change in Bone Mineral Density (BMD) of Femoral Neck From Baseline to Month 182.90 percent changeStandard Deviation 4.21
TeriparatidePercent Change in Bone Mineral Density (BMD) of Femoral Neck From Baseline to Month 182.26 percent changeStandard Deviation 3.57
p-value: <0.0001ANCOVA
p-value: <0.0001ANCOVA
p-value: 0.0004ANCOVA
Secondary

Percent Change in Bone Mineral Density (BMD) of Lumbar Spine From Baseline to 18 Months

Time frame: Basline and 18 months

Population: Intent-to-treat population included all patients who were randomized into the study by assigning the randomized study medication kit on Day 1. Baseline BMD data were missing for some patients; the method of last observation carried forward (LOCF) was used to impute missing data.

ArmMeasureValue (MEAN)Dispersion
PlaceboPercent Change in Bone Mineral Density (BMD) of Lumbar Spine From Baseline to 18 Months0.48 percent change from baselineStandard Deviation 3.82
BA058 80 mcg (Abaloparatide)Percent Change in Bone Mineral Density (BMD) of Lumbar Spine From Baseline to 18 Months9.20 percent change from baselineStandard Deviation 7.54
TeriparatidePercent Change in Bone Mineral Density (BMD) of Lumbar Spine From Baseline to 18 Months9.12 percent change from baselineStandard Deviation 6.28
p-value: <0.0001ANCOVA
p-value: <0.0001ANCOVA
p-value: 0.8155ANCOVA
Secondary

Percent Change in Bone Mineral Density (BMD) of Total Hip From Baseline to Month 18

Time frame: Baseline and 18 months

Population: Intent-to-treat population included all patients who were randomized into the study by assigning the randomized study medication kit on Day 1. Baseline BMD data were missing for some patients; the method of last observation carried forward (LOCF) was used to impute missing data.

ArmMeasureValue (MEAN)Dispersion
PlaceboPercent Change in Bone Mineral Density (BMD) of Total Hip From Baseline to Month 18-0.08 percent changeStandard Deviation 2.77
BA058 80 mcg (Abaloparatide)Percent Change in Bone Mineral Density (BMD) of Total Hip From Baseline to Month 183.44 percent changeStandard Deviation 3.51
TeriparatidePercent Change in Bone Mineral Density (BMD) of Total Hip From Baseline to Month 182.81 percent changeStandard Deviation 3.33
p-value: <0.0001ANCOVA
p-value: <0.0001ANCOVA
p-value: <0.0001ANCOVA

Source: ClinicalTrials.gov · Data processed: Mar 5, 2026