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Femoral FracturesPhase 4NCT04626141

Supracondylar Distal Femur Fractures and Abaloparatide

A Phase 4 study testing Abaloparatide in people with Femoral Fractures, run by Daniel Horwitz at 1 site in United States.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

Supracondylar femur fractures in the geriatric population present a unique challenge to the orthopaedic surgeon both in terms of fixation, healing, and final extremity axial alignment. Read more about this study

Who is it for?
Ages 65 years and older
Conditions the study is for
Femoral Fractures
What is being tested?
Abaloparatide
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
0 participants
Where
1 siteUnited States
Study dates
Jun 2024to Jun 2025
Phase
Phase 4
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 65 years and older
  • All sexes
  • No healthy volunteers
  • Older adult

Who may be able to join

  • Subject is ≥ 65 years old
  • Subject is willing and able to read, comprehend, and sign the study informed consent form in English prior to study specific procedure
  • Subject is being treated for a closed supracondylar distal femur fracture with either a retrograde nail or locked plate
  • Subject undergoes open reduction/fixation

Who cannot join

  • Subject has open fracture
  • Bilateral injury or other lower extremity injury that would affect weight bearing status
  • Subject's postoperative radiographs (on day of surgery) indicate failure to achieve axial alignment (more than 10 degrees axial alignment and more than 25% anterior/posterior displacement in lateral view)
  • Subject has additional severe traumatic conditions such as closed head injury
  • Subject has medical condition or is on medication that may significantly affect healing (i.e. immunosuppressive diseases and drugs)
  • Subject has active or history of Paget's disease of the bone, bone cancer, or other bone diseases or conditions placing them at increased risk of osteosarcoma
Show all 9Show fewer
  • Subject has active or history of hypercalcemia or underlying hypercalcemic disorder, such as primary hyperparathyroidism
  • Subject has active or a history of urolithiasis
  • Subject will have trouble injecting the pen and does not have someone to help them on a daily basis

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Geisinger Medical Center

    Danville, Pennsylvania, 17822

Other trials in United States

About this study

Official title: Time to Healing, Loss of Fixation, and Loss of Alignment in Supracondylar Distal Femur Fractures Among a Geriatric Population Treated With Abaloparatide: A Double-Blind Placebo Controlled Study

Supracondylar femur fractures in the geriatric population present a unique challenge to the orthopaedic surgeon both in terms of fixation, healing, and final extremity axial alignment. Pulsed dosing of parathyroid hormone derivatives (Forteo) has been shown to increase bone mass, and several studies in Europe have demonstrated its benefit as an adjuvant for fracture healing. Abaloparatide represents a new compound which similarly offers great potential for accelerating fracture healing, especially healing associated with callous formation. This is a randomized, double blind placebo-controlled trial to compare a group of patients being treated for supracondylar distal femur fractures who receive abaloparatide (n=38) with a control group of patients who receive a placebo (n=38).

Read the detailed description

Supracondylar femur fractures in the geriatric population present a unique challenge to the orthopaedic surgeon both in terms of fixation, healing, and final extremity axial alignment. Multiple methods of fixation are well accepted, and each has its own advantages and disadvantages. The common occurrence of periprosthetic supracondylar femur fractures adds another level of complexity, and the universal goal when treating these patients is to obtain and maintain acceptable alignment, allow mobilization and early weight bearing, and achieve union. To a degree, mobilization and weight bearing compete with maintenance of axial alignment, and any final outcome is a race between healing and loss of fixation. As a result, any intervention that can accelerate healing would be of great benefit. As the vast majority of these injuries heal with secondary bone healing (callous), the determination of "healing" is reliably determined using the modified Radiographic Union Score for Tibia Fractures (mRUST), and thus this patient population offers an ideal population in which to evaluate an accelerant of fracture healing.

Pulsed dosing of parathyroid hormone derivatives (Forteo) has been shown to increase bone mass, and several studies in Europe have demonstrated its benefit as an adjuvant for fracture healing. Abaloparatide represents a new compound which similarly offers great potential for accelerating fracture healing, especially healing associated with callous formation. This is a randomized, double blind placebo-controlled trial to compare a group of patients being treated for supracondylar distal femur fractures who receive abaloparatide (n=38) with a control group of patients who receive a placebo (n=38).

Being tested
Abaloparatide, Placebo
Medical subject headings
Femoral Fractures

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • AbaloparatideDrug

    Abaloparatide will be dispensed as a 30-day supply of disposable pen injections of the standard, FDA approved dosage (80 mcg abaloparatide).

  • PlaceboDrug

    Placebo will be dispensed as a 30-day supply of disposable pen injections.

Study groups in NCT04626141
Study groupRoleWhat they receive
Abaloparatide groupExperimentalPatients in the experimental group will receive abaloparatide after their surgery.
Receives: Drug: Abaloparatide
Control groupPlacebo comparatorPatients in the control group will receive a placebo after their surgery.
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. modified Radiographic Union Score for Tibia Fractures (mRUST)

    degree of callous formation and healing (worst 4 - 16 best)

    Measured: 6 weeks

  2. maintenance of axial alignment and loss of fixation

    change in the angle between the surface and fixed implant from the baseline radiographs (taken immediately postoperative) and the radiographs taken at 6, 12, and 24 weeks postoperative

    Measured: 6 weeks

Secondary outcomes (4)
  1. modified Radiographic Union Score for Tibia Fractures (mRUST)

    degree of callous formation and healing (worst 4 - 16 best)

    Measured: 12 weeks

  2. modified Radiographic Union Score for Tibia Fractures (mRUST)

    degree of callous formation and healing (worst 4 - 16 best)

    Measured: 24 weeks

  3. maintenance of axial alignment and loss of fixation

    change in the angle between the surface and fixed implant from the baseline radiographs

    Measured: 12 weeks

  4. maintenance of axial alignment and loss of fixation

    change in the angle between the surface and fixed implant from the baseline radiographs

    Measured: 24 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted12 Nov 2020
  2. Study startJun 2024 (estimated)
  3. Primary completionJun 2025 (estimated)
  4. Study completionJun 2025 (estimated)

Why it stopped: Study withdrawn due to staffing/enrollment related challenges.

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04626141
Sponsor's protocol ID
2020-0544
Status last verified
Apr 2024
First submitted
30 Sep 2020
Last updated
1 May 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Abaloparatide in people with Femoral Fractures, run by Daniel Horwitz at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 1 May 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

modified Radiographic Union Score for Tibia Fractures (mRUST) (time frame: 6 weeks). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2024.

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