U.S. FDA Accepts BOTOX® (onabotulinumtoxinA) Resubmission for the Treatment of Lower Limb Spasticity in Adults

Aug 20, 2015, 08:13 ET from Allergan plc

DUBLIN, Aug. 20, 2015 /PRNewswire/ -- Allergan plc (NYSE: AGN), a leading global pharmaceutical company today announced that the U.S. Food and Drug Administration (FDA) has accepted the company's resubmission of its Supplemental Biologics License Application (sBLA) for BOTOX® (onabotulinumtoxinA) for the treatment of adults with lower limb (involving ankle and toe muscles) spasticity in adults. A six-month review period has been assigned for the sBLA. The Prescription Drug User Fee Act (PDUFA) date is expected to be in the first quarter of 2016.

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"We have continued to work closely with the FDA to prepare our resubmission and we are confident that the additional information requested is addressed," said Mitchell F. Brin, M.D., Senior Vice President Global Development and Chief Scientific Officer, BOTOX®. "This FDA acceptance represents our ongoing commitment to research and development, and efforts to bring to market the first-approved focal therapy for lower limb spasticity for physicians and patients."

The resubmission provides additional data from a double-blind, placebo controlled study involving 468 patients with lower limb spasticity.

In April 2015, the FDA approved an expansion of the BOTOX® (onabotulinumtoxinA) label for the treatment of adults with upper limb spasticity. The expanded label now includes the addition of two thumb muscles: flexor pollicis longus, a muscle in the forearm that flexes the thumb; and adductor pollicis, a muscle in the hand that functions to adduct the thumb; increasing the maximum dose from 360 to 400 units for the treatment of upper limb spasticity. The FDA also approved an increase to the maximum BOTOX® cumulative dose within three months from 360 to 400 units in adults treated for one or more indications.

BOTOX® (onabotulinumtoxinA) is a prescription medicine that is injected into muscles and used to treat increased muscle stiffness in elbow, wrist, finger, and thumb muscles in people 18 years and older with upper limb spasticity.

It is not known whether BOTOX® is safe or effective to treat increased stiffness in upper-limb muscles other than those in the elbow, wrist, fingers, and thumb, or to treat increased stiffness in lower-limb muscles. BOTOX® has not been shown to help people perform task-specific functions with their upper limbs or increase movement in joints that are permanently fixed in position by stiff muscles. Treatment with BOTOX® is not meant to replace your existing physical therapy or other rehabilitation that your doctor may have prescribed.


BOTOX® may cause serious side effects that can be life threatening. Call your doctor or get medical help right away if you have any of these problems any time (hours to weeks) after injection of BOTOX®:

  • Problems swallowing, speaking, or breathing, due to weakening of associated muscles, can be severe and result in loss of life. You are at the highest risk if these problems are pre-existing before injection. Swallowing problems may last for several months
  • Spread of toxin effects. The effect of botulinum toxin may affect areas away from the injection site and cause serious symptoms including: loss of strength and all-over muscle weakness, double vision, blurred vision and drooping eyelids, hoarseness or change or loss of voice (dysphonia), trouble saying words clearly (dysarthria), loss of bladder control, trouble breathing, trouble swallowing. If this happens, do not drive a car, operate machinery, or do other dangerous activities

Do not take BOTOX® if you: are allergic to any of the ingredients in BOTOX® (see Medication Guide for ingredients); had an allergic reaction to any other botulinum toxin product such as Myobloc® (rimabotulinumtoxinB), Dysport® (abobotulinumtoxinA), or Xeomin® (incobotulinumtoxinA); have a skin infection at the planned injection site.

The dose of BOTOX® is not the same as, or comparable to, another botulinum toxin product.

Serious and/or immediate allergic reactions have been reported. These reactions include itching, rash, red itchy welts, wheezing, asthma symptoms, or dizziness or feeling faint. Tell your doctor or get medical help right away if you experience any such symptoms; further injection of BOTOX® should be discontinued.

Tell your doctor about all your muscle or nerve conditions such as amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease), myasthenia gravis, or Lambert-Eaton syndrome, as you may be at increased risk of serious side effects including severe dysphagia (difficulty swallowing) and respiratory compromise (difficulty breathing) from typical doses of BOTOX®.

Tell your doctor if you have any breathing-related problems. Your doctor will want to monitor you for any breathing problems during your treatment with BOTOX® for upper limb spasticity. The risk of pulmonary effects in patients with compromised respiratory status is increased in patients receiving BOTOX®.

Bronchitis and upper respiratory tract infections (common colds) have been reported. Bronchitis was reported more frequently in people receiving BOTOX® for their upper limb spasticity. Upper respiratory infections (common colds) were also reported more frequently in people with prior breathing-related problems.

Tell your doctor about all your medical conditions, including if you: have or have had bleeding problems; have plans to have surgery; had surgery on your face; weakness of forehead muscles, such as trouble raising your eyebrows; drooping eyelids; any other abnormal facial change; are pregnant or plan to become pregnant (it is not known if BOTOX® can harm your unborn baby); are breastfeeding or plan to breastfeed (it is not known if BOTOX® passes into breast milk).

Tell your doctor about all the medicines you take, including prescription and nonprescription medicines, vitamins, and herbal products. Using BOTOX® with certain other medicines may cause serious side effects. Do not start any new medicines until you have told your doctor that you have received BOTOX® in the past.

Especially tell your doctor if you: have received any other botulinum toxin product in the last 4 months; have received injections of botulinum toxin such as Myobloc®, Dysport®, or Xeomin® in the past (be sure your doctor knows exactly which product you received); have recently received an antibiotic by injection; take muscle relaxants; take an allergy or cold medicine; take a sleep medicine; take anti-platelets (aspirin-like products) or anti-coagulants (blood thinners).

Other side effects of BOTOX® include: dry mouth, discomfort or pain at the injection site, tiredness, headache, neck pain, and eye problems: double vision, blurred vision, decreased eyesight, drooping eyelids, swelling of your eyelids, and dry eyes.

For more information refer to the Medication Guide or talk with your doctor. You are encouraged to report negative side effects of prescription drugs to the FDA. Visit www.fda.gov/medwatch or call 1-800-FDA-1088.

Please see BOTOX® full Product Information including Boxed Warning and Medication Guide.

® marks owned by Allergan, Inc.
Myobloc® is a registered trademark of Solstice Neuroscience, Inc.  
Dysport® is a registered trademark of Ipsen Biopharm, Ltd.  
Xeomin® is a registered trademark of Merz Pharma Gmbh & Co.

About Allergan

Allergan plc (NYSE: AGN), headquartered in Dublin, Ireland, is a unique, global pharmaceutical company and a leader in a new industry model – Growth Pharma.  Allergan is focused on developing, manufacturing and commercializing innovative branded pharmaceuticals, high-quality generic and over-the-counter medicines and biologic products for patients around the world.

Allergan markets a portfolio of best-in-class products that provide valuable treatments for the central nervous system, eye care, medical aesthetics, gastroenterology, women's health, urology, cardiovascular and anti-infective therapeutic categories, and operates the world's third-largest global generics business, providing patients around the globe with increased access to affordable, high-quality medicines. Allergan is an industry leader in research and development, with one of the broadest development pipelines in the pharmaceutical industry and a leading position in the submission of generic product applications globally.

With commercial operations in approximately 100 countries, Allergan is committed to working with physicians, healthcare providers and patients to deliver innovative and meaningful treatments that help people around the world live longer, healthier lives.

For more information, visit Allergan's website at www.allergan.com.

Forward-Looking Statement 
Statements contained in this press release that refer to future events or other non-historical facts are forward-looking statements that reflect Allergan's current perspective of existing trends and information as of the date of this release. Except as expressly required by law,Allergan disclaims any intent or obligation to update these forward-looking statements. Actual results may differ materially from Allergan's current expectations depending upon a number of factors affecting Allergan's business. These factors include, among others, the risks associated with acquisition transactions; the difficulty of predicting the timing or outcome of FDA approvals or actions, if any; the impact of competitive products and pricing; market acceptance of and continued demand for Allergan's products; difficulties or delays in manufacturing; and other risks and uncertainties detailed in Allergan's periodic public filings with the Securities and Exchange Commission, including but not limited to Allergan's Quarterly Report on Form 10-Q for the quarter ended March 31, 2015 (such periodic public filings having been filed under the "Actavis plc" name) and from time to time in Allergan's other investor communications . Except as expressly required by law, Allergan disclaims any intent or obligation to update these forward-looking statements.


Lisa DeFrancesco 
(862) 261-7152

Mark Marmur 
(862) 261-7558  

SOURCE Allergan plc