Off-the-shelf CAR-T from stem cells? An ear­ly look at UCLA tech — li­censed by Gilead

Less than two years af­ter the FDA first ap­proved No­var­tis and Gilead’s ground­break­ing au­tol­o­gous CAR-T treat­ments, the next rev­o­lu­tion in can­cer cell ther­a­py is al­ready rag­ing on as biotechs like Cel­lec­tis and Al­lo­gene be­gin test­ing prod­ucts made from healthy donor cells. UCLA sci­en­tists want to take the off-the-shelf ap­proach one step fur­ther by grow­ing a “vir­tu­al­ly un­lim­it­ed sup­ply” of T cells in the lab.

Amélie Mon­tel-Ha­gen

The tech­nique, which in­volves turn­ing pluripo­tent stem cells in­to ma­ture T cells, us­es be­spoke struc­tures called ar­ti­fi­cial thymic organoids — a sim­u­la­tion of the en­vi­ron­ment where blood stem cells de­vel­op in­to T cells in the body. The pub­li­ca­tion of the tech­nique in Cell Stem Cell back in Jan­u­ary was a boon for Gilead’s Kite, which li­censed the method for can­cer ther­a­py.

“Once we cre­ate ge­net­i­cal­ly edit­ed pluripo­tent stem cell lines that can pro­duce tu­mor-spe­cif­ic T cells in ar­ti­fi­cial thymic organoids, we can ex­pand those stem cell lines in­def­i­nite­ly,” said Amélie Mon­tel-Ha­gen, the study’s first co-au­thor.

A sec­tion of an ar­ti­fi­cial thymic organoid show­ing T cells (out­lined in red) cre­at­ed from hu­man em­bry­on­ic stem cells. UCLA

Click on the im­age to see the full-sized ver­sion

As­sum­ing these cells can be prop­er­ly tuned with gene edit­ing to go af­ter dif­fer­ent tu­mor types and pre­vent im­mune re­ac­tions from the pa­tient — a big as­sump­tion giv­en the ear­ly stage of re­search — it could rep­re­sent a big leap from cur­rent­ly avail­able CAR-T ther­a­pies that can on­ly be man­u­fac­tured one at the time, with the pa­tients’ own T cells, to vary­ing ef­fi­ca­cy.

Gay Crooks

It is, how­ev­er, un­clear how the man­u­fac­tur­ing ef­fi­cien­cy and ac­ces­si­bil­i­ty would com­pare with oth­er al­lo­gene­ic CAR-Ts in de­vel­op­ment. Al­lo­gene, which un­veiled some im­pres­sive com­plete re­sponse rates for its ther­a­py at ASH last year, says its process has po­ten­tial to treat around 100 pa­tients from a sin­gle man­u­fac­tur­ing run.

Still, the fact that the team starts with pluripo­tent stem cells is what makes the ap­proach ex­cit­ing, said Gay Crooks, di­rec­tor of UCLA’s Can­cer and Stem Cell Bi­ol­o­gy Pro­gram and se­nior au­thor of the study,

Their next step, the re­searchers say, will be to cre­ate T cells that pos­sess can­cer-fight­ing re­cep­tors but not mol­e­cules that cause re­jec­tion of the cells.

It’s fi­nal­ly over: Bio­gen, Ei­sai scrap big Alzheimer’s PhI­I­Is af­ter a pre­dictable BACE cat­a­stro­phe rais­es safe­ty fears

Months after analysts and investors called on Biogen and Eisai to scrap their BACE drug for Alzheimer’s and move on in the wake of a string of late-stage failures and rising safety fears, the partners have called it quits. And they said they were dropping the drug — elenbecestat — after the independent monitoring board raised concerns about…safety.

We don’t know exactly what researchers found in this latest catastrophe, but the companies noted in their release that investigators had determined that the drug was flunking the risk/benefit analysis.

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It's not per­fect, but it's a good start: FDA pan­elists large­ly en­dorse Aim­mune's peanut al­ler­gy ther­a­py

Two days after a fairly benign review from FDA staff, an independent panel of experts largely endorsed the efficacy and safety of Aimmune’s peanut allergy therapy, laying the groundwork for approval with a risk evaluation and mitigation strategy (REMS).

Traditionally, peanut allergies are managed by avoidance, but the threat of accidental exposure cannot be nullified. Some allergists have devised a way to dose patients off-label with peanut protein derived from supermarket products to wean them off their allergies. But the idea behind Aimmune’s product was to standardize the peanut protein, and track the process of desensitization — so when accidental exposure in the real world invariably occurs, patients are less likely to experience a life-threatening allergic reaction.

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Lisa M. DeAngelis, MSKCC

MSK picks brain can­cer ex­pert Lisa DeAn­ge­lis as its next CMO — fol­low­ing José Basel­ga’s con­tro­ver­sial ex­it

It’s official. Memorial Sloan Kettering has picked a brain cancer expert as its new physician-in-chief and CMO, replacing José Baselga, who left under a cloud after being singled out by The New York Times and ProPublica for failing to properly air his lucrative industry ties.

His replacement, who now will be in charge of MSK’s cutting-edge research work as well as the cancer care delivered by hundreds of practitioners, is Lisa M. DeAngelis. DeAngelis had been chair of the neurology department and co-founder of MSK’s brain tumor center and was moved in to the acting CMO role in the wake of Baselga’s departure.

Penn team adapts CAR-T tech, reengi­neer­ing mouse cells to treat car­diac fi­bro­sis

After establishing itself as one of the pioneer research centers in the world for CAR-T cancer therapies, creating new attack vehicles to eradicate cancer cells, a team at Penn Medicine has begun the tricky transition of using the basic technology for heart repair work.

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Tal Zaks. Moderna

The mR­NA uni­corn Mod­er­na has more ear­ly-stage hu­man da­ta it wants to show off — reach­ing new peaks in prov­ing the po­ten­tial

The whole messenger RNA field has attracted billions of dollars in public and private investor cash gambled on the prospect of getting in on the ground floor. And this morning Boston-based Moderna, one of the leaders in the field, wants to show off a few more of the cards it has to play to prove to you that they’re really in the game.

The whole hand, of course, has yet to be dealt. And there’s no telling who gets to walk with a share of the pot. But any cards on display at this point — especially after being accused of keeping its deck under lock and key — will attract plenty of attention from some very wary, and wired, observers.

“In terms of the complexity and unmet need,” says Tal Zaks, the chief medical officer, “this is peak for what we’ve accomplished.”

Moderna has two Phase I studies it wants to talk about now.

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Rit­ter bombs fi­nal PhI­II for sole lac­tose in­tol­er­ance drug — shares plum­met

More than two years ago Ritter Pharmaceuticals managed to find enough silver lining in its Phase IIb/III study — after missing the top-line mark — to propel its lactose intolerance toward a confirmatory trial. But as it turned out, the enthusiasm only set the biotech and its investors up to be sorely disappointed.

This time around there’s little left to salvage. Not only did RP-G28 fail to beat placebo in reducing lactose intolerance symptoms, patients in the treatment group actually averaged a smaller improvement. On a composite score measuring symptoms like abdominal pain, cramping, bloating and gas, patients given the drug had a mean reduction of 3.159 while the placebo cohort saw a 3.420 drop on average (one-sided p-value = 0.0106).

Ear­ly snap­shot of Ad­verum's eye gene ther­a­py sparks con­cern about vi­sion loss

An early-stage update on Adverum Biotechnologies’ intravitreal gene therapy has triggered investor concern, after patients with wet age-related macular degeneration (AMD) saw their vision deteriorate, despite signs that the treatment is improving retinal anatomy.

Adverum, on Wednesday, unveiled 24-week data from the OPTIC trial of its experimental therapy, ADVM-022, in six patients who have been administered with one dose of the therapy. On average, patients in the trial had severe disease with an average of 6.2 anti-VEGF injections in the eight months prior to screening and an average annualized injection frequency of 9.3 injections.

Alex Ar­faei trades his an­a­lyst's post for a new role as biotech VC; Sanofi vet heads to Vi­for

Too often, Alex Arfaei arrived too late. 

An analyst at BMO Capital Markets, he’d meet with biotech or pharmaceutical heads for their IPO or secondary funding and his brain, trained on a biology degree and six years at Merck and Endo, would spring with questions: Why this biomarker? Why this design? Why not this endpoint? Not that he could do anything about it. These execs were coming for clinical money; their decisions had been made and finalized long ago.

Arde­lyx bags its first FDA OK for IBS, set­ting up a show­down with Al­ler­gan, Iron­wood

In the first of what it hopes will be a couple of major regulatory milestones for its new drug, Ardelyx has bagged an FDA approval to market Ibsrela (tenapanor) for irritable bowel syndrome.

The drug’s first application will be for IBS with constipation (IBS-C), inhibiting sodium-hydrogen exchanger NHE3 in the GI tract in such a way as to increase bowel movements and decrease abdominal pain. This comes on the heels of two successful Phase III trials.