FDA scut­tles blue­bird's ac­cel­er­at­ed plans for sick­le cell gene ther­a­py, as high­er CMC bar forces 1-year de­lay

In yet an­oth­er smudge on blue­bird bio’s track record for ex­e­cu­tion, the biotech is push­ing back the fil­ing for its gene ther­a­py in sick­le cell dis­ease by a year due to a new da­ta re­quire­ment from the FDA.

With the set­back, blue­bird joins a league of gene ther­a­py de­vel­op­ers — from Bio­Marin to Voy­ager — that have been ham­pered by CMC is­sues. While some­what un­ex­pect­ed, the reg­u­la­tors’ re­quest high­lights their strin­gency around man­u­fac­tur­ing and qual­i­ty con­trol.

Ac­cord­ing to blue­bird, while the FDA is hap­py to base its re­view on promis­ing da­ta from Group C of the HGB-206 study, it want­ed more in­for­ma­tion on the re­fined man­u­fac­tur­ing process the biotech is plan­ning to use for the com­mer­cial batch of bb1111. In short, blue­bird will need to prove “an­a­lyt­i­cal com­pa­ra­bil­i­ty” as it tran­si­tions from clin­i­cal-grade to com­mer­cial-grade man­u­fac­tur­ing.

“(FDA) re­quest­ed the use of drug prod­uct man­u­fac­tured from sick­le cell dis­ease (SCD) pa­tient cells in ad­di­tion to healthy donors as well as com­mer­cial lentivi­ral vec­tor to demon­strate drug prod­uct com­pa­ra­bil­i­ty,” the com­pa­ny not­ed.

That re­quires blue­bird to get drug prod­uct from its com­mer­cial con­tract man­u­fac­tur­ing or­ga­ni­za­tion, which is it­self ex­pe­ri­enc­ing 4 to 6 month de­lays re­lat­ed to Covid-19. Once they se­cure a slot, the whole process is ex­pect­ed to take 6 months — mean­ing the BLA fil­ing will hap­pen in late 2022 the ear­li­est.

The im­pli­ca­tions of this de­lay will re­ver­ber­ate across blue­bird’s en­tire pipeline, wrote Yaron Wer­ber at Cowen.

“As BLUE is a SCD sto­ry longer-term, this puts pres­sure on ide-cel’s launch in Q2:21 to per­form,” he wrote, adding: “The FDA’s re­quest in SCD ap­pears un­like­ly to im­pact the fil­ing in TDT which re­mains on track for mid-’21.”

Both the sick­le cell dis­ease and trans­fu­sion-de­pen­dent be­ta-tha­lassemia pro­grams are built up­on Lenti­Glo­bin, which de­liv­ers a func­tion­al copy of the HBB gene in­to a pa­tient’s own hematopoi­et­ic stem cells us­ing a lentivi­ral vec­tor.

De­spite nab­bing ap­proval in Eu­rope for TDT last June, the com­pa­ny post­poned the launch un­til the be­gin­ning of 2020 in or­der to fi­nal­ize com­mer­cial spec­i­fi­ca­tions. Mar­ket­ed as Zyn­te­glo in Eu­rope, the gene ther­a­py has yet to treat its first com­mer­cial pa­tients. The pan­dem­ic has held it back even more, along­side a US fil­ing orig­i­nal­ly planned for ear­li­er this year.

“When asked if dif­fer­ent dis­ease char­ac­ter­is­tics of SCD vs TDT trig­ger this lev­el of com­plex­i­ty of reg­u­la­to­ry path, mgmt agreed up­on and al­so brought up scale-up of man­u­fac­tur­ing for larg­er mar­ket op­py of SCD as an­oth­er fac­tor, and the need to tran­si­tion to a more com­mer­cial friend­ly process in SCD,” Jef­feries’ Biren Amin not­ed.

But man­u­fac­tur­ing strug­gles have long been an is­sue at blue­bird. Back in March the agency had al­so punt­ed back an ap­pli­ca­tion for ide-cel, the BC­MA CAR-T part­nered with Bris­tol My­ers Squibb via Cel­gene, be­cause of a faulty sec­tion on CMC. The teams have since re­filed and scored pri­or­i­ty re­view.

Some in­vestors, though, are not wait­ing around for blue­bird to fig­ure out the sick­le cell pro­gram. Shares $BLUE tum­bled 13.63% pre-mar­ket to $ 50.57.

How one start­up fore­told the neu­ro­science re­nais­sance af­ter '50 years of shit­show'

In the past couple of years, something curious has happened: Pharma and VC dollars started gushing into neuroscience research.

Biogen’s controversial new Alzheimer’s drug Aduhelm has been approved on the basis of removing amyloid plaque from the brain, but the new neuro-focused pharma and biotechs have much loftier aims. Significantly curbing or even curing the most notorious disorders would prove the Holy Grail for a complex system that has tied the world’s best drug developers in knots for decades.

Endpoints Premium

Premium subscription required

Unlock this article along with other benefits by subscribing to one of our paid plans.

Bob Bradway, Amgen CEO (Scott Eisen/Bloomberg via Getty Images)

Am­gen bel­lies back up to the M&A ta­ble for an­oth­er biotech buy­out, this time with a $2.5B deal for an an­ti­body play­er fo­cused on PS­MA

Five months after Amgen CEO Bob Bradway stepped up to the M&A table and acquired Five Prime for $1.9 billion, following up with the smaller Rodeo acquisition, he’s gone back in for another biotech buyout.

This time around, Amgen is paying $900 million cash while committing up to $1.6 billion in milestones to bag the privately held Teneobio, an antibody drug developer that has expertise in developing new bispecifics and multispecifics. In addition, Amgen cited Teneobio’s “T-cell engager platform, which expands on Amgen’s existing leadership position in bispecific T-cell engagers by providing a differentiated, but complementary, approach to Amgen’s current BiTE platform.”

Endpoints News

Keep reading Endpoints with a free subscription

Unlock this story instantly and join 112,900+ biopharma pros reading Endpoints daily — and it's free.

Busi­ness­es and schools can man­date the use of Covid-19 vac­cines un­der EUAs, DOJ says

As public and private companies stare down the reality of the Delta variant, many are now requiring that their employees or students be vaccinated against Covid-19 prior to attending school or to returning or starting a new job. Claims that such mandates are illegal or cannot be used for vaccines under emergency use authorizations have now been dismissed.

Setting the record straight, the Department of Justice on Monday called the mandates legal in a new memo, even when used for people with vaccines that remain subject to EUAs.

Ryan Watts, Denali CEO

De­nali slips as a snap­shot of ear­ly da­ta rais­es some trou­bling ques­tions on its pi­o­neer­ing blood-brain bar­ri­er neu­ro work

Denali Therapeutics had drummed up considerable hype for their blood-brain barrier technology since launching over six years ago, hype that’s only intensified in the last 14 months following the publications of a pair of papers last spring and proof of concept data earlier this year. On Sunday, the South San Francisco-based biotech gave the biopharma world the next look at in-human data for its lead candidate in Hunter syndrome.

Endpoints News

Keep reading Endpoints with a free subscription

Unlock this story instantly and join 112,900+ biopharma pros reading Endpoints daily — and it's free.

Why is On­col­o­gy Drug De­vel­op­ment Re­search Late to the Dig­i­tal Bio­mark­ers Game?

During the recent Annual ASCO Meeting, thousands of cancer researchers and clinicians from across the globe joined together virtually to present and discuss the latest findings and breakthroughs in cancer research and care. There were more than 5000+ scientific abstracts presented during this event, yet only a handful involved the use of motion-tracking wearables to collect digital measures relating to activity, sleep, mobility, functional status, and/or quality of life. Although these results were a bit disappointing, they should come as no surprise to those of us in the wearable technology field.

Art Levinson (Calico)

Google-backed Cal­i­co dou­bles down on an­ti-ag­ing R&D pact with Ab­b­Vie as part­ners ante up $1B, start to de­tail drug tar­gets

Seven years after striking up a major R&D alliance, AbbVie and Google-backed anti-aging specialist Calico are doubling down on their work with a joint, $1 billion commitment to continuing their work together. And they’re also beginning to offer some details on where this project is taking them in the clinic.

According to their statement, each of the two players is putting up $500 million more to keep the labs humming.

Endpoints News

Keep reading Endpoints with a free subscription

Unlock this story instantly and join 112,900+ biopharma pros reading Endpoints daily — and it's free.

UP­DAT­ED: Pan­el of neu­ro­science ex­perts lays out the com­pli­ca­tions with us­ing Bio­gen's new Alzheimer's drug

Treatment of early Alzheimer’s patients with Biogen’s new drug Aduhelm should closely resemble how the drug was studied in its pivotal clinical trials, according to new recommendations from a panel of neuroscience experts led by UNLV’s Jeffrey Cummings.

“Those considering aducanumab therapy should understand that the expected benefit is slowing of cognitive and functional decline; improvement of the current clinical state is not anticipated,” they wrote Tuesday in The Journal of Prevention of Alzheimer’s Disease, noting that some of their recommendations are more specific or more restrictive than the information provided in the FDA’s prescribing information.

Ugur Sahin, BioNTech CEO (Bernd von Jutrczenka/dpa via AP Images)

BioN­Tech is spear­head­ing an mR­NA vac­cine de­vel­op­ment pro­gram for malar­ia, with a tech trans­fer planned for Africa

Flush with the success of its mRNA Covid-19 vaccine, BioNTech is now gearing up for one of the biggest challenges in vaccine development — which comes without potential profit.

The German mRNA pioneer says it plans to work on a jab for malaria, then transfer the tech to the African continent, where it will work with partners on developing the manufacturing ops needed to make this and other vaccines.

Endpoints News

Keep reading Endpoints with a free subscription

Unlock this story instantly and join 112,900+ biopharma pros reading Endpoints daily — and it's free.

Frank Pallone (Kevin Dietsch/Pool via AP Images)

House com­mit­tee seeks more from FDA on in­spec­tion back­log, when to restart work on for­eign sites

House Energy & Commerce committee leaders are raising fresh questions about the FDA’s ability to conduct foreign manufacturing site inspections and bring down its growing backlog.

“While we understand that the emergence of COVID-19 required the agency to suspend in-person inspection activities temporarily, we remain concerned that more than one year into the pandemic, the strategy for resuming all inspections and addressing the backlog of delayed inspections remains unclear,” E&C chair Frank Pallone (D-NJ) and a group of five other bipartisan leaders of the committee wrote to FDA acting commissioner Janet Woodcock.