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The main purpose of this study is to determine the efficacy of intralesional botulinum toxin type A injection for recalcitrant alopecia totalis and alopecia universalis.
Treatments of recalcitrant alopecia totalis and universalis remains an challenge issue for medical practice.The application of diphenylcyclopropenone (DPCP) is still being an standard treatment for the condition, however, there are at least thirty percentage of patients recalcitrant to this treatment.
The complete etiology of this disease has yet to be clear.Nevertheless,recent studies have demonstrated the hypothesis of neurotransmitter involvements.
There is numerous evidence in support of an imbalance of transmitters, including substance P and Calcitonin gene-related peptide.
Botulinum toxin A injection has been used to treat a neuralgiform headache and diffused alopecia areata. Both headache and hair loss have been made much in improvement. This data may support the neurotransmitter imbalance theory.
The investigators have been informed about possible effects to the alopecia condition, therefore, this study is conducted to assess the efficacy of botulinum toxin A as the novel treatment for recalcitrant alopecia totalis and alopecia universalis.
Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment
Recalcitrant Alopecia Totalis
Botulinum toxin A
Department of dermatology, Faculty of Medicine Siriraj Hospital, Mahidol University
Not yet recruiting
Published on BioPortfolio: 2014-08-27T03:18:34-0400
Alopecia areata is one of the most common cause of non-scarring alopecia. The pathogenesis is still unclear, however, it is believed to be an autoimmune disease. This disease is not a life...
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This study examines botulinum toxin (BOTOX, or BTX) for the treatment of muscle twitches and spasticity associated with cerebral palsy in children. Botulinum toxin is a naturally occurring...
The specific aim of this trial is to determine if hydrodistention at the time of intradetrusor injection of botulinum toxin A has additional benefit in patients with refractory overactive ...
The purpose of this study is to compare two types of botulinum toxin type A to treat the involuntary muscle contractions in the neck
Alopecia areata (AA) is an autoimmune non-scarring hair loss characterized by round patches on the scalp and body. It can progress to alopecia totalis (AT) where there is total loss of scalp hair and ...
To assess the effects of methotrexate for maintaining hair regrowth in alopecia totalis.
The effects of botulinum toxin are transient, and repeat injections are required in children with lower-limb spasticity. However, the efficacy of botulinum toxin in patients who have received previous...
Salivary duct injury can be idiopathic, iatrogenic, or post-trauma and may result in sialocele or fistula. Most injuries regress spontaneously and botulinum toxin A is one of several therapeutic possi...
Early intervention might improve the quality of surgical scars. Botulinum toxin type A has been shown to improve surgical scars in the past decade. The purpose of this study was to evaluate the effect...
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.
Subtype of CLOSTRIDIUM BOTULINUM that produces botulinum toxin type E which is neurotoxic to humans and animals.
Bioinformatics is the application of computer software and hardware to the management of biological data to create useful information. Computers are used to gather, store, analyze and integrate biological and genetic information which can then be applied...
Neurology - Central Nervous System (CNS)
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