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CompletedNCT00406367Updated Mar 15, 2013Results posted

IncobotulinumtoxinA (Xeomin) Versus Placebo in the Treatment of Blepharospasm

A Phase 3 interventional study of incobotulinumtoxinA (Xeomin) and Placebo in Blepharospasm, sponsored by Merz Pharmaceuticals GmbH. Completed at 2 sites in 2 countries. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2013-03-15.

Sponsored by Merz Pharmaceuticals GmbH (part of Merz Pharma) · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
109
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
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Study summary

Patients received one injection with incobotulinumtoxinA (Xeomin) or placebo at baseline. Thereafter, all patients who entered the Open-Label Extension Period (OLEX) received up to five injection sessions of incobotulinumtoxinA (Xeomin) during the OLEX period.

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Conditions studied

  • Blepharospasm

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03

In context

Blepharospasm

42 studies on the registry are indexed under Blepharospasm; 1 is open to participants now.

This study's enrollment of 109 is above the median of 40 across 28 interventional studies indexed under Blepharospasm.

Browse Blepharospasm studies →

Lead sponsor

Merz Pharmaceuticals GmbH is the lead sponsor of 61 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Eligibility criteria

Main Inclusion Criteria:

  • Male or female pretreated outpatients between ages 18 and 80 years (inclusive)
  • A clinical diagnosis of bilateral blepharospasm (BEB) characterized by spontaneous, spasmodic, intermittent or persistent involuntary contractions of the orbicular oculi muscles
  • A need for injection of Botulinum toxin (defined by a Jankovic Rating Scale (JRS) severity subscore >= 2)
  • On a stable dose of other medications (if any) used for focal dystonia treatment (e.g. anticholinergics and benzodiazepines) for at least 3 months prior to and expected throughout the Main Period
  • Source documentation of the last two consecutive injection sessions with BOTOX® and a stable satisfactory therapeutic response directly prior to trial entry
  • At least 10 weeks must have been passed between the last injection with BOTOX® for BEB and Baseline

Main Exclusion Criteria:

  • Atypical variant of BEB caused by inhibition of levator palpebrae muscle
  • Myotomy or denervation surgery in the affected muscles (e.g. peripheral denervation and/or spinal cord stimulation)
  • The previous two injections with BOTOX® with more than 50 Units per eye
  • to human serum albumin, sucrose, or Botulinum toxin A
  • Neuroleptic induced blepharospasm
  • Diagnosis of myasthenia gravis, Lambert-Eaton syndrome, amyotrophic lateral sclerosis, or any other significant neuromuscular disease which might interfere with the trial
  • Treatment with Botulinum toxins for any indication other than BEB within 4 months prior to Baseline and during the trial
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Participant, Investigator)
Enrollment
109 participants (actual)

Study arms

  • Experimental
    incobotulinumtoxinA (Xeomin)

    incobotulinumtoxinA (Xeomin, also known as "NT 201" or "Botulinum toxin type A (150 kiloDalton), free from complexing proteins") powder for solution for injection dose (Main Period only): one injection session of solution, prepared by reconstitution of powder with 0.9% Sodium Chloride (NaCl), up to 50 Units per eye; Open-Label Extension Period: up to 5 injections, up to 50 Units per eye per injection session; Mode of administration: intramuscular injection

    Drug: incobotulinumtoxinA (Xeomin)

  • Placebo comparator
    Placebo

    Placebo to incobotulinumtoxinA (Xeomin) powder for solution for injection dose (Main Period only): one injection session of solution, prepared by reconstitution of powder with 0.9% Sodium Chloride (NaCl), placebo volume corresponding to up to 50 Units per eye; Mode of administration: intramuscular injection

    Drug: Placebo

Interventions

  • incobotulinumtoxinA (Xeomin, also known as "NT 201" or "Botulinum toxin type A (150 kiloDalton), free from complexing proteins") (active ingredient: Clostridium Botulinum neurotoxin Type A free from complexing proteins) powder for solution for injection, up to 50 Units per eye; Mode of administration: intramuscular injection

  • DrugPlacebo

    Placebo to incobotulinumtoxinA (Xeomin) powder for solution for injection dose (Main Period only): one injection session of solution, prepared by reconstitution of powder with 0.9% Sodium chloride (NaCl), placebo volume corresponding to up to 50 Units per eye; Mode of administration: intramuscular injection

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What researchers measure

Primary outcomes

  1. Jankovic Rating Scale (JRS) Change From Baseline in the JRS Severity Subscore at Week 6 After Injection (Assessed by a Blinded Independent Rater)

    The Jankovic Rating Scale (JRS) is used for classification of the patient's individual symptoms of blepharospasm and for determination of the therapeutic efficacy of study medication. The JRS sumscore is the sum of the two components of the scale: * JRS-Severity score which ranges from 0 (=absence of severity) to 4 (=maximum severity) * JRS-Frequency score which ranges from 0 (=no frequency) to 4 (=maximum frequency) The change from baseline was calculated as the score at the corresponding visit minus the baseline score.

    Time frame: Baseline, week 6

Secondary outcomes

  1. Jankovic Rating Scale (JRS) Change From Baseline in the JRS Severity Subscore at Week 6 After Injection (Assessed by Subject Diary)

    The Jankovic Rating Scale (JRS) is used for classification of the patient's individual symptoms of blepharospasm and for determination of the therapeutic efficacy of study medication. The JRS sumscore is the sum of the two components of the scale: * JRS-Severity score which ranges from 0 (=absence of severity) to 4 (=maximum severity) * JRS-Frequency score which ranges from 0 (=no frequency) to 4 (=maximum frequency) The change from baseline was calculated as the score at the corresponding visit minus the baseline score.

    Time frame: Baseline, week 6

  2. Blepharospasm Disability Index (BSDI) Change From Baseline in the BSDI at Week 6 After Injection

    The Blepharospasm Disability Index is a scale for the assessment of impairment of specific activities of daily living caused by blepharospasm. The BSDI consists of six items (driving a vehicle; reading; watching TV; shopping; getting about on foot (walking); doing everyday activities), each ranges from 0 (=no impairment) to 4 (=no longer possible due to illness). The change from baseline was calculated as the score at the corresponding visit minus the baseline score.

    Time frame: Baseline, week 6

  3. Patient Evaluation of Global Response (PEGR) at Final Visit

    The PEGR is a descriptive subjective 9-point response scale ranging from "complete abolishment of signs and symptoms" (value=+4) down to "very marked worsening" (value=-4).

    Time frame: Final visit (up to week 20 after injection of the Main Period)

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Results

Posted Nov 16, 2010

Participant flow

Main Period - 6 to 20 Weeks
Participant flow — Main Period - 6 to 20 Weeks
MilestoneincobotulinumtoxinA (Xeomin)Placebo
Started7534
Completed7032
Not completed52
Withdrew: Withdrawal criteria occurred40
Withdrew: Consent withdrawn10
Withdrew: Lost to follow-up01
Withdrew: Dosing error at visit 2 (baseline)01
Open-Label Ext. Period - up to 68 Weeks
Participant flow — Open-Label Ext. Period - up to 68 Weeks
MilestoneincobotulinumtoxinA (Xeomin)Placebo
Started1020
Completed820
Not completed200
Withdrew: Lost to follow-up20
Withdrew: Consent withdrawn60
Withdrew: Withdrawal criteria occurred40
Withdrew: Lack of efficacy40
Withdrew: Subjects needed further injection10
Withdrew: Subject received botox injection10
Withdrew: Injection in wrong muscle10
Withdrew: Olex drug given at baseline10

Outcome measures

PrimaryJankovic Rating Scale (JRS) Change From Baseline in the JRS Severity Subscore at Week 6 After Injection (Assessed by a Blinded Independent Rater)

The Jankovic Rating Scale (JRS) is used for classification of the patient's individual symptoms of blepharospasm and for determination of the therapeutic efficacy of study medication. The JRS sumscore is the sum of the two components of the scale: * JRS-Severity score which ranges from 0 (=absence of severity) to 4 (=maximum severity) * JRS-Frequency score which ranges from 0 (=no frequency) to 4 (=maximum frequency) The change from baseline was calculated as the score at the corresponding visit minus the baseline score.

Time frame:
Baseline, week 6
Reported as:
Least squares mean · Points on a scale
Jankovic Rating Scale (JRS) Change From Baseline in the JRS Severity Subscore at Week 6 After Injection (Assessed by a Blinded Independent Rater)
Points on a scaleincobotulinumtoxinA (Xeomin)Placebo
Jankovic Rating Scale (JRS) Change From Baseline in the JRS Severity Subscore at Week 6 After Injection (Assessed by a Blinded Independent Rater)-0.8 ± 0.130.2 ± 0.18
Statistical analysis
  • incobotulinumtoxinA (Xeomin) vs Placebo · ANCOVA · p = <0.001 (No type I-error adjustment was necessary in this study.) · Mean difference (final values): -1.0 · 95% CI -1.4 to -0.5Indepent variables in the model were treatment, baseline JRS-Severity score, gender, age, dose, and pooled center.
SecondaryJankovic Rating Scale (JRS) Change From Baseline in the JRS Severity Subscore at Week 6 After Injection (Assessed by Subject Diary)

The Jankovic Rating Scale (JRS) is used for classification of the patient's individual symptoms of blepharospasm and for determination of the therapeutic efficacy of study medication. The JRS sumscore is the sum of the two components of the scale: * JRS-Severity score which ranges from 0 (=absence of severity) to 4 (=maximum severity) * JRS-Frequency score which ranges from 0 (=no frequency) to 4 (=maximum frequency) The change from baseline was calculated as the score at the corresponding visit minus the baseline score.

Time frame:
Baseline, week 6
Reported as:
Mean · Points on a scale
Jankovic Rating Scale (JRS) Change From Baseline in the JRS Severity Subscore at Week 6 After Injection (Assessed by Subject Diary)
Points on a scaleincobotulinumtoxinA (Xeomin)Placebo
Jankovic Rating Scale (JRS) Change From Baseline in the JRS Severity Subscore at Week 6 After Injection (Assessed by Subject Diary)-0.75 ± 1.240.16 ± 1.07
SecondaryBlepharospasm Disability Index (BSDI) Change From Baseline in the BSDI at Week 6 After Injection

The Blepharospasm Disability Index is a scale for the assessment of impairment of specific activities of daily living caused by blepharospasm. The BSDI consists of six items (driving a vehicle; reading; watching TV; shopping; getting about on foot (walking); doing everyday activities), each ranges from 0 (=no impairment) to 4 (=no longer possible due to illness). The change from baseline was calculated as the score at the corresponding visit minus the baseline score.

Time frame:
Baseline, week 6
Reported as:
Mean · Points on a scale
Blepharospasm Disability Index (BSDI) Change From Baseline in the BSDI at Week 6 After Injection
Points on a scaleincobotulinumtoxinA (Xeomin)Placebo
Blepharospasm Disability Index (BSDI) Change From Baseline in the BSDI at Week 6 After Injection-0.4 ± 0.690.11 ± 0.67
SecondaryPatient Evaluation of Global Response (PEGR) at Final Visit

The PEGR is a descriptive subjective 9-point response scale ranging from "complete abolishment of signs and symptoms" (value=+4) down to "very marked worsening" (value=-4).

Time frame:
Final visit (up to week 20 after injection of the Main Period)
Reported as:
Mean · Points on a scale
Patient Evaluation of Global Response (PEGR) at Final Visit
Points on a scaleincobotulinumtoxinA (Xeomin)Placebo
Patient Evaluation of Global Response (PEGR) at Final Visit1.3 ± 2.09-0.6 ± 2.16

Adverse events

Collected over All SAEs/AEs during Double-Blind Period After Injection, i.e. up to 6-20 weeks after Main Period injection.. Non-serious events are listed at a 5% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
incobotulinumtoxinA (Xeomin)—0/74 (0%)45/74 (60.8%)
Placebo—1/34 (2.9%)13/34 (38.2%)
Most frequent serious events
Most frequent serious events
EventincobotulinumtoxinA (Xeomin)Placebo
DyspnoeaRespiratory, thoracic and mediastinal disorders0/741/34
Most frequent other events
Showing 10 of 12
Most frequent other events
EventincobotulinumtoxinA (Xeomin)Placebo
Dry eyeEye disorders14/744/34
Eyelid ptosisEye disorders14/742/34
Dry mouthGastrointestinal disorders11/741/34
HeadacheNervous system disorders7/741/34
Upper respiratory tract infectionInfections and infestations1/743/34
DiarrhoeaGastrointestinal disorders6/740/34
Visual disturbanceEye disorders6/740/34
Respiratory tract infectionInfections and infestations5/741/34
DysphagiaGastrointestinal disorders3/742/34
NasopharyngitisInfections and infestations4/742/34

Baseline characteristics

Age Continuous
Age Continuous(years)incobotulinumtoxinA (Xeomin)PlaceboTotal
Mean61.5 ± 11.062.6 ± 8.761.9 ± 10.3
Sex: Female, Male
Sex: Female, Male(Participants)incobotulinumtoxinA (Xeomin)PlaceboTotal
Female492271
Male261238
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Study locations

2 sites
  • Baylor College of Medicine
    Houston, Texas 77030, United States
  • David King, MD - Private Practice
    Halifax, Nova Scotia B3J 3T1, Canada
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References and documents

Publications

  • Jankovic J, Comella C, Hanschmann A, Grafe S. Efficacy and safety of incobotulinumtoxinA (NT 201, Xeomin) in the treatment of blepharospasm-a randomized trial. Mov Disord. 2011 Jul;26(8):1521-8. doi: 10.1002/mds.23658. Epub 2011 Apr 22. PubMed 21520284 ↗
  • Truong DD, Gollomp SM, Jankovic J, LeWitt PA, Marx M, Hanschmann A, Fernandez HH; Xeomin US Blepharospasm Study Group. Sustained efficacy and safety of repeated incobotulinumtoxinA (Xeomin((R))) injections in blepharospasm. J Neural Transm (Vienna). 2013 Sep;120(9):1345-53. doi: 10.1007/s00702-013-0998-9. Epub 2013 Feb 23. PubMed 23435927 ↗
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Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Oct 2006, a primary completion of Apr 2008 and a completion of Jul 2009. It does not say whether these dates are actual or estimated.

Results were first posted in Nov 2010, 2 years 7 months after primary completion.

How these figures are worked out, and which studies are left out of them.

Registered
Nov 30, 2006
First posted
Dec 4, 2006
Start
Oct 2006
Primary completionActual
Apr 2008
CompletionActual
Jul 2009
Results first posted
Nov 16, 2010
Last update
Mar 15, 2013
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Mar 15, 2013, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00406367
Responsible party
Sponsor
First posted
Dec 4, 2006
Start date
Oct 2006
Primary completion
Apr 2008
Completion
Jul 2009
Results posted
Nov 16, 2010
Last update
Mar 15, 2013

Study contacts

Joseph Jankovic, Prof.
study chair · Houston, Texas
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Botulinum toxin type A

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