LYRICA® (pregabalin) Oral Solution CV Phase 3 Trial in Pediatric Epilepsy Meets Primary Endpoint
Pfizer Inc. (NYSE: PFE) announced today positive top-line results of a Phase 3 study examining the use of LYRICA® (pregabalin) Oral Solution CV as adjunctive therapy for partial onset seizures in pediatric epilepsy patients one month to less than four years of age. Results showed that adjunctive treatment with LYRICA 14 mg/kg/day resulted in a statistically significant reduction in seizure frequency versus placebo, the primary efficacy endpoint. Treatment with LYRICA at the lower dose (7 mg/kg/day) did not result in a statistically significant reduction in seizure frequency versus placebo. The study was a post-marketing requirement by the U.S. Food and Drug Administration (FDA). LYRICA is not approved as adjunctive therapy for partial onset seizures in pediatric epilepsy patients one month to less than four years of age.
“The Phase 3 top-line results reinforce the efficacy and safety profile of LYRICA for pediatric epilepsy patients,” said James M. Rusnak, M.D., Ph.D., Chief Development Officer, Internal Medicine, Pfizer Inc. “These findings add to the data available for LYRICA in the pediatric patient population for a complex and difficult-to-treat condition.”
The LYRICA Pediatric Epilepsy Program is composed of a total of six studies in patients with epilepsy evaluating LYRICA as adjunctive therapy, four of which have been completed and two of which are actively enrolling. For more information, visit www.clinicaltrials.gov.
About the Study
This Phase 3 study was a double-blind, placebo-controlled, randomized, parallel group, multi-center study that included 14 days of double-blind adjunctive treatment. In this study, 175 pediatric patients with partial onset seizures who were not adequately controlled with one to three concomitant antiepileptic drugs were enrolled from 52 centers in 22 countries. Patients were randomized to placebo, or one of two fixed doses of LYRICA divided three times daily: LYRICA 14 mg/kg/day or LYRICA 7 mg/kg/day in a 2:1:2 ratio.
The safety profile observed in this study is comparable to the known profile of LYRICA in prior epilepsy studies in pediatric and adult patients. No unexpected or new safety findings were reported in the pediatric patients with partial onset seizures in this study. The most common adverse events with LYRICA 14 mg/kg/day in this study were somnolence, upper respiratory tract infection, and pneumonia. The most common adverse events with LYRICA 7 mg/kg/day in this study were somnolence, upper respiratory tract infection, and pyrexia. The most common adverse events with placebo were upper respiratory tract infection, vomiting, somnolence, and pyrexia.
Complete study results are expected to be submitted for publication in a peer-reviewed medical journal. These data along with those of prior studies will be submitted to the FDA for LYRICA pediatric exclusivity determination.
Epilepsy is a chronic disorder characterized by recurrent, unprovoked seizures and occurs in both adults and children. Sixty-five million people worldwide have epilepsy. In the U.S., more than three million people, including 470,000 children are living with epilepsy. Epilepsy is associated with increased morbidity and mortality and can profoundly affect multiple daily life activities. Partial onset seizures are a common seizure type in patients with epilepsy.
LYRICA® is currently approved for various indications in more than 130 countries and regions globally.
In the U.S., LYRICA is indicated to treat fibromyalgia, diabetic nerve pain, spinal cord injury nerve pain and pain after shingles in adults.
LYRICA is approved as adjunctive therapy for the treatment of partial onset seizures in patients four years of age and older.
Important Safety Information
LYRICA is not for everyone. LYRICA may cause serious, even life threatening, allergic reactions. Stop taking LYRICA and call your doctor right away if you have any signs of a serious allergic reaction. Some signs are swelling of your face, mouth, lips, gums, tongue, throat or neck or if you have any trouble breathing, or have a rash, hives or blisters.
Drugs used to treat seizures increase the risk of suicidal thoughts or behavior. LYRICA may cause suicidal thoughts or actions in a very small number of people, about 1 in 500. Patients, family members or caregivers should call the doctor right away if they notice suicidal thoughts or actions, thoughts of self harm, or any unusual changes in mood or behavior. These changes may include new or worsening depression, anxiety, restlessness, trouble sleeping, panic attacks, anger, irritability, agitation, aggression, dangerous impulses or violence, or extreme increases in activity or talking. If you have suicidal thoughts or actions, do not stop LYRICA without first talking to your doctor.
LYRICA may cause swelling of your hands, legs and feet, which can be serious for people with heart problems. LYRICA may cause dizziness and sleepiness. You should not drive or work with machines until you know how LYRICA affects you. Also, tell your doctor right away about muscle pain or problems along with feeling sick and feverish, or any changes in your eyesight including blurry vision or if you have any kidney problems or get dialysis.
Some of the most common side effects of LYRICA are dizziness, blurry vision, weight gain, sleepiness, trouble concentrating, swelling of your hands and feet, dry mouth, and feeling “high.” If you have diabetes, tell your doctor about any skin sores.
You may have a higher chance for swelling and hives if you are also taking angiotensin-converting enzyme (ACE) inhibitors so tell your doctor if you are taking these medications. You may have a higher chance of swelling of your hands or feet or gaining weight if you are also taking certain diabetes medicines. Do not drink alcohol while on LYRICA. You may have a higher chance for dizziness and sleepiness if you take LYRICA with alcohol, narcotic pain medicines, or medicines for anxiety.
Before you start LYRICA, tell your doctor if you are planning to father a child, or if you are pregnant, or plan to become pregnant. Breastfeeding is not recommended while taking LYRICA. If you have had a drug or alcohol problem, you may be more likely to misuse LYRICA.
In studies, a specific type of blood vessel tumor was seen in mice, but not in rats. The meaning of these findings in humans is not known.
Do not stop taking LYRICA without talking to your doctor. If you stop suddenly you may have headaches, nausea, diarrhea, trouble sleeping, increased sweating, or you may feel anxious. If you have epilepsy, you may have seizures more often.
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DISCLOSURE NOTICE: The information contained in this release is as of May 17, 2018. Pfizer assumes no obligation to update forward-looking statements contained in this release as the result of new information or future events or developments.
This release contains forward-looking information about LYRICA (pregabalin), including its potential benefits, that involves substantial risks and uncertainties that could cause actual results to differ materially from those expressed or implied by such statements. Risks and uncertainties include, among other things, the uncertainties inherent in research and development, including the ability to meet anticipated trial commencement and completion dates and regulatory submission dates, as well as the possibility of unfavorable clinical trial results, including unfavorable new clinical data and additional analyses of existing clinical data; whether and when any applications for any potential new indication for LYRICA may be filed with regulatory authorities in any jurisdictions; whether and when regulatory authorities in any jurisdictions may approve any such applications, which will depend on the assessment by such regulatory authorities of the benefit-risk profile suggested by the totality of the efficacy and safety information submitted and, if approved, whether such indication will be commercially successful; decisions by regulatory authorities regarding labeling and other matters that could affect the availability or commercial potential of LYRICA; uncertainties regarding whether LYRICA will be granted pediatric exclusivity in the U.S.; and competitive developments.
A further description of risks and uncertainties can be found in Pfizer’s Annual Report on Form 10-K for the fiscal year ended December 31, 2017 and in its subsequent reports on Form 10-Q, including in the sections thereof captioned “Risk Factors” and “Forward-Looking Information and Factors That May Affect Future Results”, as well as in its subsequent reports on Form 8-K, all of which are filed with the U.S. Securities and Exchange Commission and available at www.sec.gov and www.pfizer.com.