MYOBLOC relieves pain in botulinum toxin Type A-resistant patients

MYOBLOC is strong against pain

Treatment with MYOBLOC resulted in significant pain relief for patients resistant to BoNT-A²
Evaluated on a patient-reported Visual Analog Scale (VAS)²

Abbreviations: BoNT-A, botulinum toxin type A; VAS, Visual Analog Scale.

A randomized, double-blind, multicenter, placebo-controlled,16-week trial to determine the safety and efficacy of MYOBLOC in patients with cervical dystonia who were resistant to BoNT-A. A total of 77 patients were randomized to receive injections of MYOBLOC 10,000 Units or placebo. The most frequent, clinically relevant adverse events were dry mouth and dysphagia.

See Important Safety Information below.

Important Safety Information

Distant Spread of Toxin Effect

Postmarketing reports indicate that the effects of MYOBLOC and all botulinum toxin products may spread from the area of injection to produce symptoms consistent with botulinum toxin effects. These may include asthenia, generalized muscle weakness, diplopia, blurred vision, ptosis, dysphagia, dysphonia, dysarthria, urinary incontinence, and breathing difficulties. These symptoms have been reported hours to weeks after injection. Swallowing and breathing difficulties can be life threatening and there have been reports of death. The risk of symptoms is probably greatest in children treated for spasticity but symptoms can also occur in adults treated for spasticity and other conditions, particularly in those patients who have underlying conditions that would predispose them to these symptoms. In unapproved uses, including spasticity in children and adults, and in approved indications, cases of spread of effect have occurred at doses comparable to those used to treat cervical dystonia and at lower doses. (See WARNINGS, PRECAUTIONS, and OVERDOSE sections of full Prescribing Information).

MYOBLOC^® (rimabotulinumtoxinB) Injection is indicated for the treatment of adults with cervical dystonia to reduce the severity of abnormal head position and neck pain associated with cervical dystonia. Units of biological activity of MYOBLOC cannot be compared to or converted into units of any other botulinum toxin products.

Before administering MYOBLOC, physicians should consult the full Prescribing Information and Medication Guide.

The most frequently reported adverse events with MYOBLOC are dry mouth, dysphagia, dyspepsia, and injection site pain. The vast majority of these adverse events were mild to moderate, temporary, self-resolving, and more common with higher doses. These adverse events may occur within the first week following treatment and may have a duration of several months. In controlled clinical trials, few patients (<1%) stopped treatment due to dry mouth or dysphagia. There is a reduced frequency of dry mouth and dysphagia reported with continued treatment. Dysphagia has commonly been reported by patients treated with all botulinum toxins for cervical dystonia.

Caution should be exercised when administering MYOBLOC to individuals with motor neuron disease (e.g., amyotrophic lateral sclerosis), peripheral motor neuropathic diseases (e.g., motor neuropathy) or neuromuscular junctional disorders (e.g., myasthenia gravis or Lambert-Eaton syndrome). These patients may be at increased risk of clinically significant systemic effects including severe dysphagia and respiratory compromise from typical doses of MYOBLOC. In these patients, rare cases of dysphagia severe enough to cause aspiration pneumonia or to warrant the insertion of a gastric feeding tube have also been reported.

Coadministration of MYOBLOC and aminoglycosides or other agents interfering with neuromuscular transmission (e.g., curare-like compounds) should only be performed with caution as the effect of the toxin may be potentiated.

Click here for Important Safety Information, full Prescribing Information and Medication Guide.

MYOBLOC is a registered trademark of Solstice Neurosciences, LLC,
a wholly-owned subsidiary of US WorldMeds, LLC
© 2012 US WorldMeds, LLC USWM-MYO472-0211

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