FDA Approves First-in-class Evkeeza™ (evinacumab-dgnb) for Patients with Ultra-rare Inherited Form of High Cholesterol
- Category: Antibodies
- Published on Friday, 12 February 2021 15:14
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Homozygous familial hypercholesterolemia (HoFH) is an ultra-rare inherited condition that affects approximately 1,300 patients in the U.S. and is characterized by extremely high low-density lipoprotein cholesterol (LDL-C)
In pivotal Phase 3 HoFH trial, adding Evkeeza to standard lipid-lowering therapies reduced LDL-C by nearly half at 24 weeks, compared to placebo
TARRYTOWN, NY, USA I February 11, 2021 I Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) today announced that the U.S. Food and Drug Administration (FDA) approved EvkeezaTM (evinacumab-dgnb) as an adjunct to other low-density lipoprotein cholesterol (LDL-C) lowering therapies to treat adult and pediatric patients aged 12 years and older with homozygous familial hypercholesterolemia (HoFH). Evkeeza is the first FDA-approved treatment that binds to and blocks the function of angiopoietin-like 3 (ANGPTL3), a protein that plays a key role in lipid metabolism.
"The FDA's approval of Evkeeza is a watershed moment for individuals born with HoFH, a severe form of familial hypercholesterolemia," said Katherine A. Wilemon, Founder and CEO of the FH Foundation. "Those living with HoFH have faced devastatingly high LDL-C levels and an uncertain future. Evkeeza significantly lowered LDL-C levels in clinical trials and this new treatment offers an important new option for people living with HoFH."
HoFH, also known as homozygous FH, is an ultra-rare inherited condition that affects approximately 1,300 patients in the U.S. HoFH occurs when two copies of the familial hypercholesterolemia (FH)-causing genes are inherited, one from each parent, resulting in dangerously high levels (>400 mg/dL) of LDL-C (bad cholesterol). Patients with HoFH are at risk for premature atherosclerotic disease and cardiac events as early as their teenage years.
"Evkeeza is a potentially transformational new treatment for people with HoFH," said Daniel J. Rader, M.D., Professor and Chair of the Department of Genetics in the Perelman School of Medicine of the University of Pennsylvania, a leading HoFH expert who was involved with Evkeeza clinical trials. "Existing therapies for HoFH are insufficient for the majority of patients. Evkeeza, through its unique mechanism of action, was shown to reduce LDL-C levels in patients with all forms of HoFH, even those with nearly no LDL receptor activity, and represents a highly meaningful improvement in our ability to control LDL-C levels in patients with HoFH."
"Evkeeza is the first FDA-approved ANGPTL3 inhibitor and the latest example of the promise of Regeneron's development approach that harnesses genetic insights and pioneering technology to deliver new treatment options for patients who need them," said George D. Yancopoulos, M.D., Ph.D., President and Chief Scientific Officer at Regeneron. "We are proud to bring Evkeeza to patients with HoFH, and Regeneron is grateful to the patients and doctors who participated in our trials to make this a reality."
The FDA approval is based on results from the Phase 3 ELIPSE HoFH trial, published in the New England Journal of Medicine (NEJM) in August 2020. In the trial, 65 patients were randomized to receive either Evkeeza 15 mg/kg intravenously every four weeks (n=43) plus other lipid-lowering therapies, compared to lipid-lowering therapies alone (placebo, n=22). The mean baseline LDL-C level of patients in both groups was 255 mg/dL.
The trial met its primary endpoint, with Evkeeza-treated patients reducing their LDL-C from baseline by 49% on average compared to placebo at week 24 (47% reduction Evkeeza, 2% increase placebo, p<0.0001). At the same time point, compared to baseline, Evkeeza-treated patients also experienced:
- 132 mg/dL average reduction in LDL-C compared to placebo (135 mg/dL reduction Evkeeza, 3 mg/dL reduction placebo, p<0.0001).
- Significant reductions were also observed in other key secondary endpoints including levels of apolipoprotein B (ApoB), non-high-density lipoprotein cholesterol (non-HDL-C) and total cholesterol, compared to placebo (p<0.0001 for all).
- Similar levels of LDL-C lowering were also observed in the most difficult-to-treat patients who often don't respond to certain other therapies because of limited LDL receptor function, described as "null/null" (<15% LDL receptor function by in vitro assays) or "negative/negative" (genetic variants likely to result in minimal to no LDL receptor function by mutation analysis) patients.
Reductions in LDL-C seen with Evkeeza were observed as early as week 2 and maintained throughout the double-blind treatment period (week 24) and open label trial period (through week 48).
The most common adverse reactions (>3% of patients) reported from the combined safety analysis of placebo-controlled trials after 24 weeks that occurred more frequently in Evkeeza patients (n=81) than placebo (n=54) were nasopharyngitis (16% Evkeeza, 13% placebo), influenza-like illness (7% Evkeeza, 6% placebo), dizziness (6% Evkeeza, 0% placebo), rhinorrhea (5% Evkeeza, 0% placebo), nausea (5% Evkeeza, 2% placebo), pain in extremity (4% Evkeeza, 0% placebo) and asthenia (4% Evkeeza, 0% placebo). In clinical trials, adverse reactions led to discontinuation of treatment in 2% of patients treated with Evkeeza, including 1 case of anaphylaxis that resolved with treatment, and 2% of patients who received placebo.
Evkeeza is administered based on weight (15 mg/kg) once a month via intravenous infusion. The average Wholesale Acquisition Cost (WAC) per patient in the U.S. will vary based on weight, and is expected to be approximately $450,000 per year on average. Regeneron is committed to helping patients who have been prescribed Evkeeza access their medication. Regeneron's myRARE™ patient support program offers financial assistance to eligible patients who need help with the out-of-pocket cost of Evkeeza. Under the program, eligible patients with commercial insurance may pay as little as $0 in out-of-pocket costs for Evkeeza. In addition, myRARE™ offers resources to help patients and healthcare providers get started with Evkeeza including product information, insurance benefit verification, community resources and appointment reminders. For more information, call 1-833-EVKEEZA (833-385-3392) or visit www.EVKEEZA.com.
The FDA evaluated Evkeeza under Priority Review, following the decision in 2017 to grant Evkeeza Breakthrough Therapy designation for the treatment of hypercholesterolemia in patients with HoFH. The FDA reserves its Priority Review for medicines that represent significant improvements in safety or efficacy in treating serious conditions, and its Breakthrough Therapy designation is designed to expedite the development and U.S. review of drugs that target serious or life-threatening conditions.
The safety and effectiveness of Evkeeza have not been established in patients with other causes of hypercholesterolemia, including those with heterozygous familial hypercholesterolemia (HeFH). The effect of Evkeeza on cardiovascular morbidity and mortality has not been determined.
About EvkeezaTM (evinacumab-dgnb)
Evkeeza is a fully-human monoclonal antibody that binds to and blocks the function of ANGPTL3. Regeneron scientists discovered the angiopoietin gene family more than two decades ago. Human genetics research published in NEJM in 2017 by scientists from the Regeneron Genetics Center found that patients whose ANGPTL3 gene did not function properly (called a "loss-of function mutation") have significantly lower levels of key blood lipids, including LDL-C, and this is associated with a significantly lower risk of coronary artery disease.
Evkeeza was invented using Regeneron's VelocImmune® technology that utilizes a proprietary genetically-engineered mouse platform endowed with a genetically-humanized immune system to produce optimized fully-human antibodies. VelocImmune technology has also been used to create multiple antibodies including Dupixent® (dupilumab), Libtayo® (cemiplimab-rwlc), Praluent® (alirocumab), Kevzara® (sarilumab), Inmazeb™ (atoltivimab, maftivimab, and odesivimab-ebgn) and Regeneron's antibody cocktail for COVID-19, which was recently granted Emergency Use Authorization (EUA) in the U.S.
Regulatory review for Evkeeza is ongoing in the European Union. In June 2020, the European Medicines Agency's Committee for Medicinal Products for Human Use (CHMP) recommended an accelerated assessment for Evkeeza based on the high unmet medical need and therapeutic innovation demonstrated by the product.
- The FH Foundation is a 501(c)-3 public charity and receives funding support from federal grants, pharmaceutical companies including Regeneron, laboratory and medical device companies, as well as donations from individuals and families impacted by familial hypercholesterolemia and lipoprotein(a).
- Dr. Rader has received research support and consulting fees from Regeneron, including for service on an evinacumab advisory board, and Regeneron has provided in-kind support for work conducted in the Penn Medicine Biobank.
Regeneron (NASDAQ: REGN) is a leading biotechnology company that invents life-transforming medicines for people with serious diseases. Founded and led for over 30 years by physician-scientists, our unique ability to repeatedly and consistently translate science into medicine has led to nine FDA-approved treatments and numerous product candidates in development, almost all of which were homegrown in our laboratories. Our medicines and pipeline are designed to help patients with eye diseases, allergic and inflammatory diseases, cancer, cardiovascular and metabolic diseases, pain, infectious diseases and rare diseases.
Regeneron is accelerating and improving the traditional drug development process through our proprietary VelociSuite® technologies, such as VelocImmune, which uses unique genetically-humanized mice to produce optimized fully-human antibodies and bispecific antibodies, and through ambitious research initiatives such as the Regeneron Genetics Center, which is conducting one of the largest genetics sequencing efforts in the world.
For additional information about the company, please visit www.regeneron.com or follow @Regeneron on Twitter.
SOURCE: Regeneron Pharmaceuticals