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Comparison of Two Commercial Preparations of Botulinum Toxin Type A

2014-08-27 03:20:01 | BioPortfolio

Summary

The objective of this study is to compare the action halos of the botulinum toxins (Dysport® and Botox®) using two equivalence-ratios and to gather supportive information, such as more detailed data on the effectiveness in reduction of wrinkles and duration of action on the upper part of the face of both products, trough scales and photographs evaluations.

Description

This was a monocentric, prospective, randomized and double-blind study. Fifty nine female patients, presenting with moderate to severe forehead wrinkles, with sweating ability who had never undergone previous BoNT-A injections were enrolled. There were two randomizations, one related to the dose-equivalence (2:1U and 2.5:1U), both reconstituted in the same volume of 0.02 mL per point and another related to the forehead side (left or right) for application of the tested drugs. Baseline, twenty-eight and 112 days later, clinical and photographic assessments, Minor´s test, and electromyographic (EMG) evaluations were performed.

Study Design

Allocation: Randomized, Control: Dose Comparison, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Conditions

Wrinkles in Frontal Area

Intervention

BOTULINUM TOXIN TYPE-A

Location

Brazilian Center for Dermatological Studies
Porto Alegre
Rio Grande do Sul
Brazil
90570-040

Status

Completed

Source

Brazilan Center for Studies in Dermatology

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:20:01-0400

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Medical and Biotech [MESH] Definitions

Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type G. Though it has been isolated from soil, no outbreaks involving this type have been recognized.

Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type C which is neurotoxic to ANIMALS, especially CATTLE, but not humans. It causes dissociation of ACTIN FILAMENTS.

Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type D which is neurotoxic to ANIMALS, especially CATTLE, but not humans.

Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type B which is neurotoxic to humans and animals.

Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type F which is neurotoxic to humans and animals.

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