Abaloparatide and Pelvic Fracture Healing

February 27, 2024 updated by: Jeri Nieves, PhD, Hospital for Special Surgery, New York

Abaloparatide Versus Placebo for Pelvic Fracture Healing - A Phase 2 Randomized Controlled Trial

This is a prospective randomized, double-blinded, placebo-controlled, phase 2, three-month study of the efficacy of abaloparatide in postmenopausal women and men ≥ 50 years of age with acute fractures of the pelvis (n=78). The primary outcome is CT image based evidence of fracture healing. The secondary aims are pain and physical performance measures at 3 months. This study will be extended with 9 months of open label abaloparatide to determine if any potential differences between the placebo and abaloparatide groups during the 3 months of treatment are evident and persist over time, even in patients who use abaloparatide after the three-month placebo controlled intervention.

Study Overview

Status

Active, not recruiting

Conditions

Intervention / Treatment

Detailed Description

By 2030 over 25% of the entire US population will be older than 65 years of age. Pelvic fracture rates are higher in women. Over 90% of pelvic fractures in patients >60 years are defined as osteoporosis related fractures. In a recent study in Germany, the rate of all first pelvic fractures in persons over 60 was 22.4 [95% CI 22.0-22.9] per 10,000 person-years. The incidence rate increases dramatically with age, from 5.4 and 3.8 per 10,000 person-years in women and men aged 65 to 69 years to 93.5 and 44.5 per 10,000 person-years in women and men aged 90 years and older, respectively. This is in agreement with studies in the US and Finland, also showing an increase in incidence of pelvic fractures with age. Pelvic fractures are most often a result of low-energy trauma, such as a fall from standing height. Pelvic fractures are the most relevant for this proposed randomized placebo-controlled study. This fracture is accompanied by severe pain, chronic immobility and loss of function and independence in the elderly. The current treatment strategy of pelvic fractures includes pain management, patient mobilization, and the prevention of complications associated with comorbid conditions. In a review of six studies with over 500 patients, the mean length of hospital stay was 13.4 days and the average 1-year mortality was 16.3%. Mortality rates in 1300 pelvic fracture patients were still elevated at 3 years. Pelvic fractures are associated with slow healing and a delayed return to full function and normal activity. Pelvic fractures consume substantial healthcare resources, and based on administrative claims data, they are one of the most costly osteoporosis related fractures. Un-healed fractures, occurring in one-third of pelvic fracture patients at 3 months, can cause continued pain and impact mobility. With aging of the population and expected concomitant increase in the incidence of pelvic fractures, there is a pressing need to find effective treatments that will accelerate healing. There are strong preclinical data, as well as clinical evidence, that administration of parathyroid hormone (PTH) receptor agonists may improve bone union, hasten fracture healing and improve physical function. In one nonrandomized, un-blinded study, 100% of pelvic fracture patients given 1-84PTH were healed within 12 weeks compared to 68% of the controls. However, there is not sufficient evidence at this time to recommend routine use of PTH receptor agonists for fracture healing. Pelvic fractures are ideal to study for the impact of abaloparatide on rate of fracture healing because there are no surgical repairs for the vast majority of the fractures. Prior studies of teriparatide on wrist fracture healing were limited and confounded by the increased prevalence of surgical fixation to treat these fractures. Strong evidence of pelvic fracture healing that may result from this study may not only have an impact on pelvic fractures but perhaps may indicate a potential use for other fractures as well.

In the proposed randomized, double blind, placebo controlled clinical trial in patients >50 years of age with acute pelvic fracture, the investigators plan to evaluate whether treatment with daily subcutaneous ABALOPARATIDE 80 mcg/day compared with placebo, in addition to standard treatment (pain management, bed rest and prevention of complications from comorbid conditions), is effective in accelerating fracture healing in women and men compared to standard treatment alone. The investigators hypothesize that development of a successful adjunctive therapy (ABALOPARATIDE) will accelerate radiographic evidence of fracture healing and speed functional recovery. If this hypothesis holds true, it would lead to a change in clinical practice and an improved quality of care for pelvic fracture patients. Evidence of an impact on the healing of pelvic fractures may also extend to a potential to improve healing of other osteoporosis-related fractures. In the planned trial the investigators will recruit women and men with acute pelvic fractures and address 3 specific aims over 3 months of treatment in a placebo controlled double blind study to determine if ABALOPARATIDE in addition to standard care versus placebo and standard care:

  1. Results in evidence of more complete cortical bridging at 3 months using focus CT to reduce radiation exposure from CT scans (primary outcome).
  2. Leads to a faster reduction in pain as assessed by both the Numeric Rating Scale and a reduction in the use of narcotics (secondary outcome).
  3. Leads more to a more rapidly improved functional outcome using measures to assess lower extremity function (Continuous Summary Physical Performance Score and Timed Up and Go- secondary outcomes).

Although the primary analysis will be based on data from 0 to 3 months, whether the benefit of ABALOPARATIDE on fracture healing wanes over time is unclear, making a longer follow-up important to extend knowledge on the persistence of early ABALOPARATIDE effect on these outcomes. Therefore, the investigators will extend this study with 9 months of open label ABALOPARATIDE to determine if any potential differences between the placebo and ABALOPARATIDE groups during the 3 months of treatment are evident and persist over time, even in patients who use ABALOPARATIDE after the three month placebo controlled intervention.

If ABALOPARATIDE can improve fracture healing, this study will have an impact on the treatment of persons with pelvic fracture who are not surgical candidates and often face severe pain, chronic immobility, and loss of function in the elderly. A positive finding of accelerated healing of pelvic fractures would also encourage study of ABALOPARATIDE for treatment of other osteoporotic fractures.

Study Type

Interventional

Enrollment (Actual)

48

Phase

  • Phase 2

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact Backup

Study Locations

  • United States
    • New York
      • New York, New York, United States, 10021
        • Hospital for Special Surgery
      • New York, New York, United States, 10029
        • Mount Sinai
      • Valhalla, New York, United States, 10595
        • Westchester Medical Center

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

50 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Postmenopausal women and men >50 years of age with acute pelvic fractures, occurring with minimal trauma, presenting to Mount Sinai, New York University, New York Presbyterian-Queens, Hospital for Special Surgery, or New York Hospital (Cornell Medical) within one month of the onset of symptoms.

Exclusion Criteria:

  1. Persons unable to complete the NRS and other surveys based on assessment by the study doctor.
  2. Previously (prior to fracture) non-ambulatory subjects

  3. Exclusion criteria related to contraindication or intolerance to ABALOPARATIDE:

    1. Hypersensitivity to ABALOPARATIDE
    2. Patients with increased risk of osteosarcoma: Paget's disease, history of radiation treatment
    3. Patients with active hypercalcemia based on serum calcium above the upper limit of normal.
    4. Serum creatinine cannot be elevated more than 1.5 times above upper normal limit for age
    5. Current diagnosis of hyperparathyroidism and other metabolic bone disease including osteogenesis imperfecta
    6. Multiple Kidney stones (calcium oxalate) within the last 10 years or single kidney stone (calcium oxalate) within the last year. If stone type is not known, a 24-hour urine calcium determination can be performed; if not elevated, the patient does not require exclusion.
    7. Normal alkaline phosphatase levels will not be used as an entrance criterion because most fracture patients will have elevations due to the acute fracture. However, we will attempt to obtain lab tests from the period prior to fracture to determine if they were normal. If unexplained elevations in alkaline phosphatase (more than 1.5 times above the upper limit of normal) are found in labs prior to the fracture, we will exclude that subject.
    8. Diagnosis of metastatic cancer within the past 10 years; primary bone cancer or multiple myeloma at any time. For other primary active non-skin cancers (diagnosed within the last 5 years), the patient's oncologist should be consulted to determine participant eligibility.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: abaloparatide prefilled syringe
Abaloparatide-SC is supplied as a liquid, 3120 micrograms per 1.56 milliliter (2000 mcg/mL) in a single patient multi-use prefilled pen. The prefilled pen delivers 30 doses of abaloparatide, each containing 80 mcg of abaloparatide in 40 microliters of a sterile, clear, colorless solution. To be administered subcutaneously daily.
Drug: Abaloparatide 80 micrograms per Pen dose
prefilled injector pen to deliver 80 micrograms daily subcutaneously
Other Names:
  • Tymlos
Placebo Comparator: Placebo prefilled syringe
For the placebo-SC a prefilled multi-use pen injector cartridge is designed to deliver 30 doses of placebo each in 40 microliters of sterile, clear, colorless solution to be administered subcutaneously daily.
Drug: Placebo prefilled injector pen
prefilled injector pen to deliver inactive solution daily subcutaneously
Other Names:
  • placebo

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Efficacy for fracture healing- Measured by participant cortical bridging scores
Time Frame: 3 months
Score for cortical bridging on a CT exam at 3 months in abaloparatide versus placebo groups.
3 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Efficacy measure of participant pain score as assessed by the Numeric Rating Scale
Time Frame: 8 weeks
Pain score measured by Numeric rating scale that uses a scale from 0 (no pain) to 10 (worst pain imaginable), the subject will report how intense their pain is now and how intense it was on average last week. This will be compared in the abaloparatide versus placebo groups.
8 weeks
Efficacy measure of participant pain score as assessed by the Numeric Rating Scale
Time Frame: 12 months
Pain score measured by Numeric rating scale that uses a scale from 0 (no pain) to 10 (worst pain imaginable), the subject will report how intense their pain is now and how intense it was on average last week. This will be compared over time in the abaloparatide versus placebo groups.
12 months
Participant lower extremity function based on a score from the Continuous Summary Physical Performance Score. The measure of lower extremity physical function is an efficacy variable.
Time Frame: 3 months
Physical function as an efficacy outcome using a continuous summary physical performance score based on a battery of tests, including walk speed, repeated chair stands and balance.
3 months
Participant lower extremity function based on a score from the Continuous Summary Physical Performance Score. The measure of lower extremity physical function is an efficacy variable.
Time Frame: 12 months
Physical function as an efficacy outcome using a continuous summary physical performance score based on a battery of tests, including walk speed, repeated chair stands and balance.
12 months
Participant (percent) reporting narcotic use for pain
Time Frame: 8 weeks
The use of narcotics will be collected at each visit and will be quantified into morphine equivalents. ABALOPARATIDE versus placebo groups will be compared for morphine equivalents.
8 weeks
Efficacy measure of the time for participants to complete the Timed Up and Go Test.
Time Frame: 3 months

The test begins by having the subject Stand up from the chair, walk to the line on the floor at a normal pace, turn, walk back to the chair at a normal pace and sit down again. The person administering the test will time the subject using a stopwatch.

including walk speed, repeated chair stands and balance. In addition,Timed up and go score.
3 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Hospital for Special Surgery, New York

Collaborators

New York University
Icahn School of Medicine at Mount Sinai
Weill Medical College of Cornell University
Westchester Medical Center

Investigators

  • Principal Investigator: Joseph Lane, MD, Hospital for Special Surgery, New York
  • Principal Investigator: Jeri W Nieves, PhD, Hospital for Special Surgery, New York

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 17, 2020

Primary Completion (Estimated)

May 1, 2024

Study Completion (Estimated)

May 1, 2024

Study Registration Dates

First Submitted

January 27, 2020

First Submitted That Met QC Criteria

January 29, 2020

First Posted (Actual)

January 30, 2020

Study Record Updates

Last Update Posted (Actual)

February 28, 2024

Last Update Submitted That Met QC Criteria

February 27, 2024

Last Verified

February 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 2019-1978

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Research data is identified by an anonymous study identification. No protected health information is stored in the research database. The possibility of individual subject identification is nil from within the purview of the data. The data will be made available for sharing 12-months after the publication of the primary paper. SAS datasets, a data dictionary, images of case report forms, SAS format library, the SAS program in which source data is recoded for analysis and data table summary descriptive statistics for data validation cross-check will be made available on an encrypted USB drive. A data sharing agreement is required.

IPD Sharing Time Frame

within one year of study completion

IPD Sharing Access Criteria

A data sharing agreement is required. Dr. Nieves and Dr. Lane will give priority to data sharing requests with the stated purpose of a) Teaching, b) replication or reanalysis of results reported in the primary paper, c) subgroup analyses to be used for the design of future research. Other requests will be considered on a caseby- case basis. Hospital for Special Surgery legal office for research will provide details on their policy.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • ICF
  • ANALYTIC_CODE
  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Fracture of Pelvis (Disorder)

Clinical Trials on Abaloparatide 80 micrograms per Pen dose

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

CROs by country

CROs in Malta

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

3
Subscribe