FDA Approves CSL-uniQure's Hemophilia B Gene Therapy, the Most Expensive Medicine in the World - BioSpace

2 years ago 41

uniQure CEO Matt Kapusta

uniQure CEO Matt Kapusta, Company Courtesy

The FDA approved CSL Behring and uniQure’s Hemgenix (etranacogene dezaparvovec-drlb), a one-time cistron therapy developed for adults with Hemophilia B, the companies announced Tuesday.

The motion makes Hemgenix the archetypal cistron therapy approved for Hemophilia B.

Priced astatine $3.5 million, Hemgenix is present the most costly medicine successful the world, Reuters reported.

Hemophilia B is simply a rare, inherited humor clotting upset that is typically treated with injections of clotting macromolecule origin IX. It’s caused by a azygous cistron defect that leads to insufficient accumulation of clotting origin IX, making patients’ bodies incapable to halt bleeding connected their own.

In a property release, Matt Kapusta, main enforcement serviceman of uniQure, called the support a “historic accomplishment based connected much than a decennary of probe and objective development” that volition let these patients “the anticipation of being liberated from burdensome infusions.” 

Hemgenix contains an engineered microorganism carrying a cistron expressed successful the liver to nutrient clotting origin IX.

Now, Hemophilia B patients who are presently undergoing Factor IX prophylaxis therapy oregon who person experienced recurrent bleeding episodes oregon fatal hemorrhages whitethorn person a semipermanent solution. 

The terms tag connected the drug, portion high, is not needfully unexpected. 

The FDA approved 2 cistron therapies developed by bluebird bio for uncommon disorders successful August and September—both came astatine exorbitant prices.

Zynteglo, approved to dainty beta-thalassemia, was priced astatine $2.8 million, and Skysona, approved to dainty Cerebral Adrenoleukodystrophy (CALD), was priced astatine $3 million.

Even so, neither of these therapies volition marque oregon interruption bluebird’s bottommost line, arsenic the indications they're approved to dainty are rare.

This is besides apt the lawsuit with Hemgenix, arsenic Hemophilia B lone occurs successful males. A 2019 survey concluded that astatine that time, determination were 6,994 to 7,751 males with hemophilia B surviving successful the U.S.

“We are assured this terms constituent volition make important outgo savings for the wide healthcare strategy and importantly little the economical load of hemophilia B,” a CSL spokesperson told Managed Healthcare Executive

The Nitty Gritty

Under the presumption of the deal, uniQure has received $500 cardinal upfront from CSL. It volition besides beryllium eligible for commercialized milestone payments and royalties up to $1.5 billion.

In June 2020, uniQure announced it would assistance CSL Behring exclusive rights to commercialize and proceed the improvement of Hemgenix. uniQure volition manufacture the merchandise astatine its installation successful Lexington, Massachusetts.

The support was based connected information from the Hope-B trial, the largest cistron therapy proceedings for Hemophilia B to date. According to the data, Hemgenix reduced the complaint of yearly bleeds; 94% of patients discontinued origin IX prophylaxis and remained prophylaxis-free.

Patients treated with the therapy produced mean origin IX enactment of 39% astatine six months and 36.7% astatine 24 months pursuing dosing. Seven to 18 months aft dosing, the mean adjusted annualized bleeding complaint (ABR) for each bleeds was reduced by 54%.

Read Entire Article