FDA Approves Kaléo’s Auvi-Q (Epinephrine Injection, USP) 0.1 mg Auto-Injector for Life-Threatening Allergic Reactions in Infants and Small Children

In continuation of my update on epinephrine

Kaléo, a privately-held pharmaceutical company,  announced that the U.S. Food and Drug Administration (FDA) has approved its supplemental New Drug Application (sNDA) for Auvi-Q (epinephrine injection, USP) 0.1 mg, the first and only epinephrine auto-injector (EAI) specifically designed for the treatment of life-threatening allergic reactions, including anaphylaxis, in infants and small children weighing 16.5 to 33 pounds (7.5 to 15 kilograms) who are at risk for or have a history of serious allergic reactions.

The sNDA for the Auvi-Q 0.1 mg Auto-injector was granted Priority Review by the FDA, an expedited regulatory pathway reserved for products that may provide significant improvements in the safety or effectiveness of the treatment, diagnosis, or prevention of serious conditions when compared to available therapies.

Auvi-Q is a compact epinephrine auto-injector with industry-first features, including a voice prompt system that guides a user with step-by-step instructions through the delivery process, and a needle that automatically retracts following administration. The new 0.1 mg-dose epinephrine auto-injector has a shorter needle length and lower dose of epinephrine than current FDA approved 0.15 mg and 0.3 mg epinephrine auto-injectors.

Children are increasingly being treated for anaphylaxis. There was a 129.8 percent increase in emergency room visits for anaphylaxis among children four years old and younger between 2005 and 2014.[i] According to a study published in Allergy, Asthma & Clinical Immunology, 43 percent of children weighing 16.5 pounds (7.5 kilograms) to 33 pounds (15 kilograms) treated with a 0.15 mg EAI having a standard 12.7 mm needle length are at risk of having the needle strike the bone, therefore potentially impacting the administration of epinephrine during a life-threatening emergency.[ii] The needle length in Auvi-Q 0.1 mg was specifically designed for use with infants and small children to help mitigate this safety concern.

“Today’s decision by the FDA to approve the Auvi-Q 0.1 mg Auto-injector is exciting for all of us in the life-threatening allergy community who have been working for many years to fulfill this unmet medical need,” said Spencer Williamson, President and CEO of kaléo. “As a company that focuses on patients first, and providing potentially life-saving treatments, we are particularly glad we will be able to help caregivers by providing an EAI that was specifically designed with an appropriate dose and needle length for infants and children (16.5 to 33 pounds) in order to maximize the potential for a safe administration of epinephrine.”

“The approval of Auvi-Q 0.1 mg will help achieve our goal of working to fulfill unmet medical needs,” said Eric S. Edwards, MD, PhD, Vice President of Innovation and Research & Development at kaléo. “We developed the Auvi-Q 0.1 mg EAI to deliver a dose of epinephrine appropriate to infants and small children weighing 16.5 – 33 pounds, with a shorter needle length to help mitigate the risk of striking bone which could potentially cause injury or interfere with the delivery of epinephrine.”

Only Auvi-Q 0.1 mg has a dose and needle length designed specifically for treating anaphylaxis in infants and small children weighing 16.5 – 33 pounds. Auvi-Q 0.1 mg includes the innovative AUVI-Q electronic voice instruction system as well as visual cues to help guide users step-by-step through the administration.

“The approval of an epinephrine auto-injector specifically designed for infants and small children is timely, especially given the recent changes to guidelines recommending that certain high-risk infants, as young as four to six months old, be introduced to peanut-containing foods,” said Eleanor Garrow-Holding[1], President and CEO of the Food Allergy & Anaphylaxis Connection Team (FAACT). “We are pleased that the pediatric allergy healthcare community and parents of infants and small children with life-threatening allergies will have the ability to obtain an FDA-approved epinephrine auto-injector in the event of an allergic emergency. We look forward to the availability of Auvi-Q 0.1 mg.”

“Until now, healthcare practitioners and caregivers to infants and small children have not had an epinephrine auto-injector with an appropriate dose of epinephrine available to them, potentially causing some delay in the administration of epinephrine in a life-threatening allergic emergency,” said Dr. Vivian Hernandez-Trujillo[1], a pediatric allergist, and fellow of the American Academy of Allergy, Asthma and Immunology; American College of Allergy, Asthma and Immunology; and American Academy of Pediatrics specializing in the management of life-threatening allergies and anaphylaxis. “Having an epinephrine auto-injector with a needle length and dose specifically designed for infants and small children should help alleviate concerns around hitting the bone or injecting too much epinephrine.”

Identical twin brothers, Evan and Eric Edwards, the inventors of Auvi-Q, know what it is like to live with life-threatening allergies, both as patients and parents of food-allergic children. Their goal was to develop an epinephrine auto-injector that contained innovative features, such as a voice instruction system that helps guide patients and caregivers step-by-step through the injection process. Evan and Eric Edwards believe and trust in Auvi-Q, not only for themselves, but also for their children and other families who may have to depend on it to administer epinephrine during an allergic emergency.

FDA Approves Kaléo’s Auvi-Q (Epinephrine Injection, USP) 0.1 mg Auto-Injector for Life-Threatening Allergic Reactions in Infants and Small Children

Sanofi Canada announces new option for emergency treatment of anaphylaxis

We know that, Epinephrine (also known as adrenaline/adrenalin) is a hormone and a neurotransmitter. Epinephrine has many functions in the body, regulating heart rate, blood vessel and air passage diameters, and metabolic shifts; epinephrine release is a crucial component of the fight-or-flight response of the sympathetic nervous system. In chemical terms, epinephrine is one of a group of monoamines called the catecholamines. It is produced in some neurons of the central nervous system, and in the chromaffin cells of the adrenal medulla from the amino acids phenylalanine and tyrosine.

Now, Sanofi Canada announces a new option for the emergency treatment of anaphylaxis. Allerject™ is the first and only 'talking' epinephrine auto-injector in Canada. 

 

Sanofi Canada announces new option for emergency treatment of anaphylaxis

FDA Approves Palynziq (pegvaliase-pqpz) for the Treatment of Adults with Phenylketonuria

The U.S. Food and Drug Administration today approved Palynziq (pegvaliase-pqpz) for adults with a rare and serious genetic disease known as phenylketonuria (PKU). Patients with PKU are born with an inability to break down phenylalanine (Phe), an amino acid present in protein-containing foods and high-intensity sweeteners used in a variety of foods and beverages. Palynziq is a novel enzyme therapy for adult PKU patients who have uncontrolled blood Phe concentrations on current treatment.

“This is a novel enzyme substitution therapy that helps address a significant unmet need in PKU patients who have been unable to control their blood Phe levels with current treatment options,” said Julie Beitz, M.D., director of the Office of Drug Evaluation III in FDA’s Center for Drug Evaluation and Research. “This new approval demonstrates our commitment to approving advancements in treatment that will give patients living with PKU different options for care.”

PKU affects about 1 in 10,000 to 15,000 people in the United States. If untreated, PKU can cause chronic intellectual, neurodevelopmental and psychiatric disabilities. Lifelong restriction of phenylalanine intake through the diet is needed to prevent buildup of Phe in the body, which can cause long-term damage to the central nervous system.

The safety and efficacy of Palynziq were studied in two clinical trials in adult patients with PKU with blood phenylalanine concentrations greater than 600 µmol/L on existing management. Most PKU patients in the Palynziq trials were on an unrestricted diet prior to and during the trials. The first trial was a randomized, open-label trial in patients treated with increasing doses of Palynziq administered as a subcutaneous injection up to a target dose of either 20 mg once daily or 40 mg once daily. The second trial was an 8-week, placebo-controlled, randomized withdrawal trial in patients who were previously treated with Palynziq. Patients treated with Palynziq achieved statistically significant reductions in blood phenylalanine concentrations from their pre-treatment baseline blood Phe concentrations.

The most common adverse events reported in the Palynziq trials included injection site reactions, joint pain, hypersensitivity reactions, headache, generalized skin reactions lasting at least 14 days, pruritus (itchy skin), nausea, dizziness, abdominal pain, throat pain, fatigue, vomiting, cough and diarrhea. Hypersensitivity reactions occurred in most patients, likely due to formation of antibodies to the product.

The most serious adverse reaction in the Palynziq trials was anaphylaxis, which occurred most frequently during upward titration of the dose within the first year of treatment. Because of this serious risk, the labeling for Palynziq includes a Boxed Warning and the product is available only through a restricted program under a Risk Evaluation and Mitigation Strategy (REMS) called the Palynziq REMS Program. Notable requirements of the Palynziq REMS Program include the following:

• Prescribers must be certified by enrolling in the REMS program and completing training
• Prescribers must prescribe auto-injectable epinephrine with Palynziq
• Pharmacies must be certified with the program and must dispense only to patients who are authorized to receive Palynziq
• Patients must enroll in the program and be educated about the risk of anaphylaxis by a certified prescriber to ensure they understand the risks and benefits of treatment with Palynziq
• Patients must have auto-injectable epinephrine available at all times while taking Palynziq

Combination of Phentermine & Topiramate for obesity treatment......

We know that Phentermine (see structure) is  an appetite suppressant of the  amphetamine and phenethylamine class. It is approved as an appetite suppressant to help reduce weight in obese patients. Its  usually used for short-term and in combination with exercise, diet and behavioral modification. Is typically prescribed for individuals, who are at increased medical risk because of their weight and works by helping to release certain chemicals in the brain that control appetite.  

Mode of action : Phentermine, in doses clinically used, works on the hypothalamus portion of the brain to release norepinephrine, a neurotransmitter or chemical messenger that signals a fight-or-flight response, reducing hunger. Phentermine works outside the brain as well to release epinephrine or adrenaline causing fat cells to break down stored fat, but the principal basis of efficacy is hunger-reduction. At high doses, phentermine releases serotonin and dopamine as well, but such doses are never used in clinical medicine.  

Topiramate (structure below), is a known anticonvulsant agent and  also  reported  for  the  treatment   of

SSRI-  induced weight gain in anxiety disorders. However a combination   of these two drugs (Phentermine & Topiramate) has been  tried by VIVUS, Inc. and has submitted New Drug Application (NDA)   to the U.S. Food and Drug Administration (FDA) seeking approval of Qnexa (Phentermine & Topiramate combination) - its investigational drug for the treatment of obesity, including weight loss and maintenance of weight loss, in patients who are obese or overweight with co-morbidities such as hypertension, type 2 diabetes, dyslipidemia or central adiposity.

The NDA submission follows the successful completion of the phase 3 program for Qnexa, including the recently announced results from the two pivotal, year-long phase 3 studies (EQUIP and CONQUER). In these trials, patients treated with all three doses of Qnexa achieved significant percent and categorical weight loss compared to placebo and met regulatory requirements for weight loss products as defined in the current FDA Guidance for Developing Products for Weight Management. Patients treated with Qnexa also had significant dose-related improvements in a variety of secondary endpoints including reductions in cardiovascular and metabolic risk factors. Hope people with obesity, will breathe a sigh of relief in the near future....

Ref : http://ir.vivus.com/releasedetail.cfm?ReleaseID=433172