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CompletedNCT00942851Updated Sep 6, 2012Results posted

A Study of Acetyl Hexapeptide-8 (AH8) in Treatment of Blepharospasm

A Phase 1/2 interventional study of Acetyl-Hexapeptide Topical Treatment and placebo in Focal Dystonia, sponsored by National Institute of Neurological Disorders and Stroke (NINDS). Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2012-09-06.

Sponsored by National Institute of Neurological Disorders and Stroke (NINDS) · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
24
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Background:

  • Blepharospasm is caused by excessive contraction of the muscles that close the eye. It can be treated with injections of botulinum neurotoxin (BoNT), which works by weakening those muscles.
  • Acetyl Hexapeptide-8 (AH-8) is the active ingredient in a number of cosmetic creams used to treat wrinkles, and is marketed under the trade name Argireline(Copyright). Like BoNT, AH-8 works to weaken the muscles, but is available as a skin cream instead of an injection. AH-8 has never been used to treat people with blepharospasm.

Objectives:

  • To determine if AH-8 can be used as part of a treatment regimen for blepharospasm.

Eligibility:

  • Individuals 18 years of age and older who have blepharospasm and have been receiving successful treatment with botulinum toxin injections.

Design:

  • Participants will be involved in the study for a maximum of 7 months.
  • Patients will have a complete physical and neurological exam, and will be asked questions about their blepharospasm. Patients will then receive BoNT injections in the same areas of the muscle around the eye and at the same doses that have been effective previously.
  • After the injections, patients will receive a container of either the active cream (with AH-8) or cream without AH-8, and will be instructed on how to apply it.
  • Patients will return 1 month after the first visit for another neurologic exam and questions, and will be asked about any side effects. Another supply of cream will be given.
  • Five additional visits will take place on a monthly basis, and patients will be given additional supplies of the cream as needed. Patients will stop participating in the study if they require another BoNT injection for blepharospasm. The study will end after 7 months.
Read the detailed description

OBJECTIVE:

To study the efficacy of cutaneous application of Acetyl Hexapeptide-8 (AH8) in the therapy of blepharospasm.

STUDY POPULATION:

22 patients with blepharospasm.

DESIGN:

This will be a double blind, placebo-controlled trial. Patients receiving treatment of blepharospasm with botulinum neurotoxin (BoNT) will be recruited. They will receive either the study substance or a placebo cream containing the emulsion but no active substance, in twice daily applications to the eyelids beginning the day following a BoNT injection treatment. They will continue to apply the cream and we will record the time until their condition worsens back to baseline following benefit from the injections, hypothesizing that the cream application will prolong the time until the need for the next injection by at least 3 months.

OUTCOME MEASURES::

Primary: time until the Jankovic Blepharospasm Rating Scale (JBRS) reverts back to baseline.

Secondary: Change in the JBRS at 6 months; Change in the JBRS at 7 months if not receiving BoNT; Change in the JBRS at 3 months; Change in the Blepharospasm Disability Scale at 6 months

02

Conditions studied

  • Focal Dystonia

Keywords

  • Dystonia
  • Blepharospasm
  • Botulinum Toxin
  • Treatment
  • Clinical Trial
  • Focal Dystonia
03

In context

Dystonic Disorders

95 studies on the registry are indexed under Dystonic Disorders; 19 are open to participants now.

This study's enrollment of 24 is close to the median of 24 across 45 interventional studies indexed under Dystonic Disorders.

Browse Dystonic Disorders studies →

Lead sponsor

National Institute of Neurological Disorders and Stroke (NINDS) is the lead sponsor of 601 studies on the registry; 56 are open to participants now.

Of its 18 completed or terminated interventional studies of FDA-regulated products, 8 (44%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age above 18 years

    1. Diagnosis of PB made by a Movement Disorders Neurologist
    2. Severity of PB prompting the need for treatment as determined by patient subjective assessment.
    3. JBRS of at least 3 at initial visit.
    4. BDS of at least 8 at the entry visit.
    5. At least three prior successful injectable BoNT treatments, with stable interval between injections of 3 months (ie duration of response of 3 months).

Exclusion criteria

EXCLUSION CRITERIA:

  1. Pregnant women
  2. Blepharospasm associated with a different Neurologic condition, including but not limited to generalyzed dystonia, a parkinsonian syndrome, or major brain structural abnormality, as evidenced by Neurologic exam and/or review of records
  3. Skin condition resulting in loss of integrity of the skin overlying the OO or potentially interfering with cream absorption.
  4. Medical condition impairing the patient's ability to comply with the study protocol or to perform daily applications of the cream as instructed
  5. Abnormally long or short response to BoNT treatment in the past, ie duration of PB relief with BoNT greater than 4 months or less than 2 months.
  6. Allergy to any component of the study or placebo cream.
  7. Known or observed eye pathology.
05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Investigator, Outcomes assessor)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    active

    AH-8 containing topical intervention

    Drug: Acetyl-Hexapeptide Topical Treatment

  • Placebo comparator
    placebo

    topical intervention WITHOUT AH-8

    Drug: placebo

Interventions

  • DrugAcetyl-Hexapeptide Topical Treatment

    AH-8 containing topical treatment

  • Drugplacebo

    topical treatment NOT containing AH-8

06

What researchers measure

Primary outcomes

  1. Time Until Jankovic Blepharospasm Rating Scale (JBRS) Reverts Back to Baseline

    The JBRS is a severity scale for blepharospasm, ranging from 0 (no symptoms) to 8 (the most severe symptoms, functionally blind). It includes measures of blink frequency and severity of abnormal eye closure. The scale was measured at baseline (before intervention) and followed over time. Return to baseline value represents loss of benefit from BoNT injection. The time to return to baseline JBRS is an indication of added benefit from the topical intervention.

    Time frame: 3-7 months

Secondary outcomes

  1. Change in the JBRS at 3 Months

    The JBRS is a severity scale for blepharospasm, ranging from 0 (no symptoms) to 8 (the most severe symptoms, functionally blind). It includes measures of blink frequency and severity of abnormal eye closure. The scale was measured at baseline (before intervention) and followed over time.

    Time frame: baseline to 3 months

  2. % Blepharospasm Disability Scale (BDS) Change at 3 Months

    % BDS change at 3 months. The BDS is a quality of life scale ranging from 0 (no symptoms) to 26 (maximum impact of symptoms on quality of life). The questions are specific for impairment related to blepharospasm. We compared the percentage change over three months in the active and placebo arms.

    Time frame: baseline to 3 months

07

Results

Posted Sep 6, 2012

Participant flow

Participant flow — Overall Study
MilestoneActivePlacebo
Started1212
Completed1211
Not completed01

Outcome measures

PrimaryTime Until Jankovic Blepharospasm Rating Scale (JBRS) Reverts Back to Baseline

The JBRS is a severity scale for blepharospasm, ranging from 0 (no symptoms) to 8 (the most severe symptoms, functionally blind). It includes measures of blink frequency and severity of abnormal eye closure. The scale was measured at baseline (before intervention) and followed over time. Return to baseline value represents loss of benefit from BoNT injection. The time to return to baseline JBRS is an indication of added benefit from the topical intervention.

Time frame:
3-7 months
Reported as:
Mean · month
Time Until Jankovic Blepharospasm Rating Scale (JBRS) Reverts Back to Baseline
monthActive Ingredient- AH8Placebo
Time Until Jankovic Blepharospasm Rating Scale (JBRS) Reverts Back to Baseline3.71 ± 1.483.03 ± .23
SecondaryChange in the JBRS at 3 Months

The JBRS is a severity scale for blepharospasm, ranging from 0 (no symptoms) to 8 (the most severe symptoms, functionally blind). It includes measures of blink frequency and severity of abnormal eye closure. The scale was measured at baseline (before intervention) and followed over time.

Time frame:
baseline to 3 months
Reported as:
Mean · points
Change in the JBRS at 3 Months
pointsActive Ingredient- AH8Placebo
Change in the JBRS at 3 Months1.09 ± 0.70.92 ± 2.07
Secondary% Blepharospasm Disability Scale (BDS) Change at 3 Months

% BDS change at 3 months. The BDS is a quality of life scale ranging from 0 (no symptoms) to 26 (maximum impact of symptoms on quality of life). The questions are specific for impairment related to blepharospasm. We compared the percentage change over three months in the active and placebo arms.

Time frame:
baseline to 3 months
Reported as:
Mean · percentage change
% Blepharospasm Disability Scale (BDS) Change at 3 Months
percentage changeActivePlacebo
% Blepharospasm Disability Scale (BDS) Change at 3 Months30.89 ± 37.332.32 ± 31.13

Adverse events

Non-serious events are listed at a 1% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Active—0/12 (0%)2/12 (16.7%)
Placebo—0/12 (0%)2/12 (16.7%)
Most frequent other events
Most frequent other events
EventActivePlacebo
eyelid irritationSkin and subcutaneous tissue disorders2/122/12

Baseline characteristics

Age, Categorical
Age, Categorical(Participants)ActivePlaceboTotal
<=18 years000
Between 18 and 65 years101121
>=65 years213
Age Continuous
Age Continuous(years)ActivePlaceboTotal
Mean57.59 ± 8.4655.87 ± 8.2556.73 ± 8.22
Sex: Female, Male
Sex: Female, Male(Participants)ActivePlaceboTotal
Female12214
Male01010
Region of Enrollment
Region of Enrollment(participants)ActivePlaceboTotal
United States121224
08

Study locations

1 site
  • National Institutes of Health Clinical Center, 9000 Rockville Pike
    Bethesda, Maryland 20892, United States
09

References and documents

Publications

  • Ben Simon GJ, McCann JD. Benign essential blepharospasm. Int Ophthalmol Clin. 2005 Summer;45(3):49-75. doi: 10.1097/01.iio.0000167238.26526.a8. No abstract available. PubMed 15970766 ↗
  • Defazio G, Livrea P. Primary blepharospasm: diagnosis and management. Drugs. 2004;64(3):237-44. doi: 10.2165/00003495-200464030-00002. PubMed 14871168 ↗
  • Defazio G, Livrea P. Epidemiology of primary blepharospasm. Mov Disord. 2002 Jan;17(1):7-12. doi: 10.1002/mds.1275. PubMed 11835433 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 6, 2012, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT00942851
Collaborators
BCN Peptides
Responsible party
Sponsor
First posted
Jul 21, 2009
Start date
Jul 2009
Primary completion
Oct 2010
Completion
Oct 2010
Results posted
Sep 6, 2012
Last update
Sep 6, 2012
View the source record on ClinicalTrials.gov ↗

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