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Total Hip ArthroplastyPhase 1/2NCT01525667

Safety and Efficacy of IM Injections of PLX-PAD for the Regeneration of Injured Gluteal Musculature After Total Hip Arthroplasty

A Phase 1/2 study testing 150M PLX-PAD and 300M PLX-PAD in people with Total Hip Arthroplasty and Muscle Injury, run by Pluristem Ltd. at 1 site in Germany.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Local administration of PLX-PAD single dose, intra-muscular injection for the regeneration of injured gluteal musculature after Total Hip Arthroplasty (THA). Read more about this study

Who is it for?
Ages 50 to 75 years
Conditions the study is for
Total Hip Arthroplasty, Muscle Injury
What is being tested?
150M PLX-PAD and 300M PLX-PAD
Type of treatment
Injection or infusion
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
20 participants
Where
1 siteGermany
Study dates
Nov 2012to Jun 2015
Phase
Phase 1/2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 50 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Male or female subjects between 50 to 75 years of age
  • Scheduled THA
  • ASA Score ≤ 3
  • Signed written informed consent

Who cannot join

  • Muscle diseases
  • Severe neurological diseases
  • Opioid long term medication
  • Pain chronification > stadium II of Gerbershagen
  • Immunosuppression due to illness or medication
  • Ankylosing spondylitis
Show all 20Show fewer
  • History of ectopic bone formation of any localisation
  • Exclusion criteria for MRI (pace maker, defibrillator, ferromagnetic intracerebral clips)
  • Uncontrolled hypertension (defined as diastolic blood pressure > 100 mmHg or systolic blood pressure > 200 mmHg during screening)
  • Life-threatening ventricular arrhythmia or unstable angina - characterized by increasingly frequent episodes with modest exertion or at rest, worsening severity, and prolonged
  • ST segment elevation myocardial infarction and/or TIA/CVA within three (3) months prior to enrollment. Subjects with severe congestive heart failure symptoms (i.e. NYHA Stage IV)
  • Subject has malignancy undergoing treatment including chemotherapy, radiotherapy or immunotherapy
  • Body Mass Index (BMI) of 35 Kg/m2 or greater
  • Known allergies to protein products (horse or bovine serum, or porcine trypsin) used in the cell production process
  • Known HIV, syphilis at time of screening
  • Known active Hepatitis B, or Hepatitis C infection at the time of screening
  • Pregnant or breast-feeding women or women of childbearing potential not protected by an effective contraceptive method of birth control (defined as pearl index < 1)
  • In the opinion of the investigator, the subject is unsuitable for cellular therapy
  • Subject is currently enrolled in, or has not yet completed a period of at least 30 days since ending other investigational device or drug trial(s)
  • Subjects who are legally detained in an official institute

Trial locations and contacts

1 site in 1 country.

Germany1 site
  • Charité Universitätsmedizin Berlin

    Berlin, State of Berlin, 10117

Other trials in Germany

About this study

Official title: A Phase I/II, Randomized, Double-Blind, Placebo-Controlled Study to Assess the Safety and Efficacy of Intramuscular Injections of Allogeneic PLX-PAD Cells for the Regeneration of Injured Gluteal Musculature After Total Hip Arthroplasty

Local administration of PLX-PAD single dose, intra-muscular injection for the regeneration of injured gluteal musculature after Total Hip Arthroplasty (THA).

Read the detailed description

One of the main problems when performing THA via the standard transgluteal approach is the necessary injury of the gluteus medius muscle. The consecutive decrease of contractile muscle substance and the substitution by scar tissue leads to functional deficits of the pelvic-stabilizing musculature with an insufficiency limp in a large number of patients. In the long run the lack of musculature leads to a decrease in bone substance at the insertion sites of the gluteal muscles of the proximal femur. The present study has the aim of establishing a new therapy for iatrogenic gluteal muscle damage. The hypothesis of the present proposal is that intra-muscular (IM) injection of PLX-PAD into the iatrogenically injured gluteus medius muscle after THA results in an improved regeneration of the skeletal muscle tissue and consecutively in an improved functional outcome.

Subjects will be assigned to receive one of the two targeted doses of PLX-PAD or placebo. On the treatment day, after suturing the gluteus medius muscle PLX-PAD or placebo will be applied directly to the site of laceration.

Patients will be followed up for efficacy assessment up to week 26 and for safety assessment (Adverse events, vital signs, ECG, routinf lab and immunological testing) up to week 52 after THA. Patients will be phoned at week 104 in order to inquire about the occurence of new cancer.

Being tested
150M PLX-PAD, 300M PLX-PAD, Placebo
Keywords
THA, Muscle injury

What participants receive

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

  • 150M PLX-PADBiological

    Single course, multiple IM injections

  • 300M PLX-PADBiological

    Single course, multiple IM injections

  • PlaceboBiological

    Single course, multiple IM injections

Study groups in NCT01525667
Study groupRoleWhat they receive
150M PLX-PADExperimentalSingle course, multiple IM injections
Receives: Biological: 150M PLX-PAD
300M PLX-PADExperimentalSingle course, multiple IM injections
Receives: Biological: 300M PLX-PAD
PlaceboPlacebo comparatorSingle course, multiple IM injections
Receives: Biological: Placebo

What is being measured

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

  1. Change From Day 0 to Week 26 in the Maximal Voluntary Isometric Contraction (MVIC) Moment of the Injured Side to Assess Gluteus Medius Strength.

    Change from Visit 2 (Day 0) to Week 26 in the maximal voluntary isometric contraction (MVIC) moment of the injured side as measured by isometric dynamometry to assess Gluteus Medius force strength.

    Measured: Day 0 to Week 26

Secondary outcomes (4)
  1. Change From Day 0 to Week 26 in Muscle Volume.

    Change from Visit 2 (Day 0) to Week 26 in Muscle Volume as Measured by MRI.

    Measured: Day 0 to Week 26

  2. Change From Day 1 to Week 12 in Mean Fiber Diameter.

    Change from Visit 3 (Day 1) to Week 12 in Mean Fiber Diameter as Measured by Muscle Biopsy.

    Measured: Day 1 to Week 12

  3. Change From Day 0 to Week 26 in the Ratio of Injured to Contralateral Pelvic Shift .

    Change from Visit 2 (Day 0) to Week 26 in the Ratio of Injured to Contralateral Pelvic Shift as Measured by Gait Analysis

    Measured: Day 0 to Week 26

  4. Change From Day 0 to Week 26 in the Visual Analog Scale (VAS) Pain Score.

    Visual Analog Scale (VAS) Pain Score ranges from 0 mm (no pain) to 100 mm (worse possible pain)

    Measured: Day 0 to Week 26

Timeline

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

  1. First posted3 Feb 2012 (estimated)
  2. Study startNov 2012
  3. Primary completionDec 2013
  4. Study completionJun 2015

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Investigator
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01525667
Sponsor's protocol ID
PLX-PAD 1301-01
Status last verified
Jan 2015
First submitted
31 Jan 2012
Last updated
21 Sep 2015
Data monitoring committee
Yes

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing 150M PLX-PAD and 300M PLX-PAD in people with Total Hip Arthroplasty and Muscle Injury, run by Pluristem Ltd. at 1 site in Germany.

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 20 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: finished, as of the sponsor's last update on 21 Sep 2015. 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 Germany. 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 combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

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?

Yes. Results are posted in the registry (first posted 23 Feb 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Change From Day 0 to Week 26 in the Maximal Voluntary Isometric Contraction (MVIC) Moment of the Injured Side to Assess Gluteus Medius Strength. (time frame: Day 0 to Week 26). 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 21 Sep 2015.

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