Radial Diffusion of the Botulinum Toxin Type A (Botox®): Electromyographic Evaluation of the Frontal Muscle

NCT ID: NCT01297634

Last Updated: 2011-11-23

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE4

Total Enrollment

64 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-05-31

Study Completion Date

2011-11-30

Brief Summary

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This study evaluates the diffusion area (cephalic, lateral, medial and caudal points) of the botulinum toxin type A in the frontal muscle for usual concentrations and dilutions of the drug. A basal line control and After the application control will be made, and the investigators will evaluate the drug effects, based on clinical aspects, photographic registers and through electromyography exam (EMG).

Considering the results of our investigation, the investigators may propose a pattern of application of BOTULINUM TOXIN TYPE-A Botox® in the frontal area.

Detailed Description

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Conditions

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Wrinkles

Keywords

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Botulinum toxin type A Hyperfunctional forehead lines Randomized controlled trial Double-blinded trial Electromyogram (EMG) Electromyographic activity Frontal Area

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Outcome Assessors

Study Groups

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Botulinum Toxin Type-A 1U

Group Type OTHER

Botulinum Toxin Type-A (day 0)

Intervention Type DRUG

* Botulinum Toxin Type-A 1 unit. Dilution:1U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 1 unit. Dilution: 0,5U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 1 unit. Dilution: 0,25U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.

Botulinum Toxin Type-A 2U

Group Type OTHER

Botulinum Toxin Type-A (day 0)

Intervention Type DRUG

* Botulinum Toxin Type-A 2 Units. Dilution:1U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 2 units. Dilution: 0,5U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 2 units. Dilution: 0,25U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.

Botulinum Toxin Type-A 3U

Group Type OTHER

Botulinum Toxin Type-A (day 0)

Intervention Type DRUG

Botulinum Toxin Type-A 3 units. Dilution:1U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.

* Botulinum Toxin Type-A 3 units. Dilution: 0,5U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 3 units. Dilution: 0,25U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.

Interventions

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Botulinum Toxin Type-A (day 0)

* Botulinum Toxin Type-A 1 unit. Dilution:1U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 1 unit. Dilution: 0,5U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 1 unit. Dilution: 0,25U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.

Intervention Type DRUG

Botulinum Toxin Type-A (day 0)

* Botulinum Toxin Type-A 2 Units. Dilution:1U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 2 units. Dilution: 0,5U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 2 units. Dilution: 0,25U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.

Intervention Type DRUG

Botulinum Toxin Type-A (day 0)

Botulinum Toxin Type-A 3 units. Dilution:1U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.

* Botulinum Toxin Type-A 3 units. Dilution: 0,5U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.
* Botulinum Toxin Type-A 3 units. Dilution: 0,25U/0,01ml (with saline solution). will be injected in the left and right belly to the Frontal Muscle.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Subjects who have indication for aesthetic treatment of the frontal dynamic wrinkles, in maximal contraction of the frontal muscle.
* Availability and understanding of the patient, for complete all the steps throughout the duration of the study.
* Medical history and physical examination compatible with the study.
* Informed consent signed.

Exclusion Criteria

* Subjects with previous forehead face lifting or blepharoplasty surgery.
* Previous use of Botulinum toxin in the last 6 months.
* Forehead or eyelid asymmetry.
* Subjects with infections on site of injection or inflammatory skin diseases.
* Subjects with hypersensitivity to any component of the formulation, including albumin.
* Subjects with neuropathic or neuromuscular diseases.
* Subjects using aminoglycosides, penicillamine antibiotics, quinine and Ca2+ channel blockers.
* Subjects with pregnancy and lactation, or that planning become pregnant during the time of the study.
* Subjects with dimorphism or others psychological disorders.
Minimum Eligible Age

30 Years

Maximum Eligible Age

60 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Allergan

INDUSTRY

Sponsor Role collaborator

Ivo Pitanguy Institute

OTHER

Sponsor Role lead

Responsible Party

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Armando Iniguez MD

Plastic Surgeon

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Ivo Pitanguy Institute

Rio de Janeiro, Rio de Janeiro, Brazil

Site Status

Countries

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Brazil

Other Identifiers

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396936

Identifier Type: OTHER

Identifier Source: secondary_id

CEP001/11

Identifier Type: OTHER

Identifier Source: secondary_id

191622

Identifier Type: -

Identifier Source: org_study_id