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Back PainPhase 2NCT01001715

Single Injection of REGN475/SAR164877 in Treatment of Vertebral Fracture Pain

A Phase 2 study testing REGN475/SAR164877 in people with Back Pain, run by Regeneron Pharmaceuticals at 11 sites in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

Primary objective was to demonstrate the activity of REGN475/SAR164877 in reducing the pain associated with vertebral fracture. Secondary objectives were: to assess the safety and tolerability of REGN475/SAR164877 in patients with vertebral fracture pain; to characterize the pharmacokinetic and immunogenicity profiles… Read more about this study

Who is it for?
Ages 40 to 80 years
Conditions the study is for
Back Pain
What is being tested?
REGN475/SAR164877
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
41 participants
Where
11 sitesUnited States
Study dates
Nov 2009to Jan 2011
Phase
Phase 2
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 40 to 80 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Moderate to severe pain due to non-traumatic vertebral fracture associated with osteoporosis.

Who cannot join

  • Mild pain score on the Pain Intensity-Numeric Rating Scale [PI-NRS] at screening and randomization visits;
  • Narcotic addiction;
  • Post-fracture vertebral instability;
  • Unwillingness to use study-defined rescue analgesia exclusively.
  • The above information is not intended to contain all considerations relevant to a patient's potential participation in a clinical trial.

Trial locations and contacts

11 sites in 1 country.

11 sites in 1 country

United States11 sites
  • Sanofi-Aventis Investigational Site Number 840034

    Atlanta, Georgia, 30328

  • Sanofi-Aventis Investigational Site Number 840005

    Beverly Hills, California, 90211

  • Sanofi-Aventis Investigational Site Number 840013

    Boynton Beach, Florida, 33472

  • Sanofi-Aventis Investigational Site Number 840047

    Clearwater, Florida, 33755

  • Sanofi-Aventis Investigational Site Number 840044

    Fort Worth, Texas, 76117

  • Sanofi-Aventis Investigational Site Number 840001

    Fresno, California, 93710

  • Sanofi-Aventis Investigational Site Number 840026

    New York, New York, 11201

  • Sanofi-Aventis Investigational Site Number 840017

    Sacramento, California, 95817

  • Sanofi-Aventis Investigational Site Number 840028

    San Diego, California, 92103

  • Sanofi-Aventis Investigational Site Number 840023

    Southlake, Texas, 76092

  • Sanofi-Aventis Investigational Site Number 840008

    Stockton, California, 95204

Other trials in United States

About this study

Official title: Randomized, Double-blind, Placebo-controlled Study of the Effect of a Single Injection of SAR164877 (REGN475) on Reduction of Pain From Vertebral Fracture Associated With Osteoporosis

Primary objective was to demonstrate the activity of REGN475/SAR164877 in reducing the pain associated with vertebral fracture.

Secondary objectives were:

  • to assess the safety and tolerability of REGN475/SAR164877 in patients with vertebral fracture pain;
  • to characterize the pharmacokinetic and immunogenicity profiles of REGN475/SAR164877 in this population.
Read the detailed description

The duration of the study period for each participant was up to 13 weeks, including a screening period up to 5 days, and 12-week follow-up after the injection.

Conditions
Back Pain
Being tested
REGN475/SAR164877, Placebo (for REGN475/SAR164877)
Medical subject headings
Back Pain

What participants receive

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

  • REGN475/SAR164877Drug

    Pharmaceutical form: solution

    Route of administration: intravenous infusion over 30 minutes

  • Placebo (for REGN475/SAR164877)Drug

    Pharmaceutical form: solution

    Route of administration: intravenous infusion over 30 minutes

Study groups in NCT01001715
Study groupRoleWhat they receive
REGN475/SAR164877ExperimentalREGN475/SAR164877, single injection, dose depending on the participant's body weight
Receives: Drug: REGN475/SAR164877
PlaceboPlacebo comparatorPlacebo (for REGN475/SAR164877), single injection
Receives: Drug: Placebo (for REGN475/SAR164877)

What is being measured

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

  1. Mean change from baseline in pain intensity as assessed by Pain Intensity Numeric Rating Scale [PI-NRS]

    The baseline value was defined as the average of PI-NRS values obtained at screening and at randomization visit.

    The Week 4 value was defined as the average of PI-NRS values obtained daily through e-Diary assessments during Week 4.

    Measured: baseline and 4 weeks after injection

Secondary outcomes (8)
  1. Mean change from baseline in pain intensity as assessed by PI-NRS

    Measured: baseline and every other weeks up to 12 weeks after injection

  2. Percentage of pain-free days (score "0" pain on PI-NRS)

    Measured: 12 weeks

  3. Percentage of days with rescue analgesia use

    Measured: 12 weeks

  4. Change from baseline in Quality of Life Questionnaire of the European Foundation for Osteoporosis [QUALEFFO] score

    Measured: baseline and 4, 8, 12 weeks

  5. Change from baseline in Short Form-12 Item Quality of Life Questionnaire [SF-12] score

    Measured: baseline and 4, 8, 12 weeks

  6. Patient Global Impression of Change [PGIC] score

    Measured: 4, 8, 12 weeks

  7. Percentage of participants with at least 30% and 50% reduction from baseline in pain intensity

    Measured: up to 12 weeks after injection

  8. Pharmacokinetic: REGN475/SAR164877 serum concentration

    Measured: 12 weeks

Timeline

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

  1. First posted27 Oct 2009 (estimated)
  2. Study startNov 2009
  3. Primary completionJan 2011
  4. Study completionJan 2011

Why it stopped: Business decision due to low subject recruitment and enrollment

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 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
41 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01001715
Sponsor's protocol ID
ACT11308
Status last verified
May 2013
First submitted
26 Oct 2009
Last updated
27 May 2013
Results posted
No
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing REGN475/SAR164877 in people with Back Pain, run by Regeneron Pharmaceuticals at 11 sites 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 1 inclusion and 5 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: stopped early, as of the sponsor's last update on 27 May 2013. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 11 sites 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 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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 stopped early (reason given: Business decision due to low subject recruitment and enrollment). Results are not available in the source record.

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?

Mean change from baseline in pain intensity as assessed by Pain Intensity Numeric Rating Scale [PI-NRS] (time frame: baseline and 4 weeks after injection). 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 27 May 2013.

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