CRISPR trail­blaz­ers Zhang, Liu and Joung join forces to launch Beam with $87M and cut­ting-edge gene-edit­ing tech

Three of the founders be­hind the high pro­file gene-edit­ing com­pa­ny Ed­i­tas are tak­ing their sci­en­tif­ic prowess to a new ven­ture, launch­ing a start­up this week that ex­pands on the pi­o­neer­ing CRISPR tech the en­tire space is built on.

The new com­pa­ny — called Beam Ther­a­peu­tics — is step­ping out Mon­day with $87 mil­lion in launch mon­ey. In­vestors are back­ing true trail­blaz­ers in gene edit­ing, as Beam’s sci­en­tif­ic founders in­clude David Liu, now-se­r­i­al en­tre­pre­neur Feng Zhang, and J Kei­th Joung. All three are sci­en­tif­ic founders of Ed­i­tas, the CRISPR com­pa­ny launched in 2013 that now gar­ners a $1.7 bil­lion mar­ket cap.

Beam is tak­ing a to­tal­ly new ap­proach to gene edit­ing, hop­ing to tweak base pairs with­out ac­tu­al­ly cut­ting the strand of DNA or RNA. If CRISPR can be com­pared to scis­sors, then Beam’s base edit­ing tech is more like a pen­cil, Liu tells me, eras­ing a “bad” base and writ­ing in a good one.

The im­pe­tus for Beam’s launch was Liu’s re­search at Har­vard, which is now li­censed to the Cam­bridge start­up. The li­cense cov­ers two base edit­ing plat­forms: a C base ed­i­tor and an A base ed­i­tor. The C base one fea­tures Cas9 linked to a cy­ti­dine deam­i­nase to make C-to-T or G-to-A ed­its. The A base ed­i­tor has Cas9 linked to “an evolved form of adeno­sine deam­i­nase,” which can make A-to-G or T-to-C ed­its.

Liu’s DNA base edit­ing tech is just part of Beam’s pack­age, though. Zhang, the guy who just months ago helped launched a dif­fer­ent gene edit­ing start­up (Ar­bor), has joined forces with Liu, con­tribut­ing RNA base edit­ing tech­nol­o­gy from his lab that fea­tures Cas13 linked to an adeno­sine deam­i­nase that can ed­it A-to-G in RNA tran­scripts.

On top of li­cens­es to Liu and Zhang’s tech, Beam al­so has patents from Ed­i­tas. Beam’s CEO John Evans tells me the deal gives the start­up ex­clu­sive rights to IP li­censed to Ed­i­tas by Har­vard, Broad, and Mass­a­chu­setts Gen­er­al Hos­pi­tal, along with cer­tain Ed­i­tas tech­nol­o­gy. As part of that deal, Beam has an ex­clu­sive sub­li­cense to base edit­ing patents out of Liu’s lab and patents by MGH for CRISPR tech­nol­o­gy de­vel­oped in Joung’s lab.

Beam’s ap­proach to gene edit­ing is quite com­pelling for a num­ber of rea­sons. First, slic­ing DNA is a per­ma­nent change, and that isn’t al­ways a good idea.

“There are some states of dis­ease that don’t last a life­time, but are tran­sient,” Liu said. “For those cas­es, you may not want to ad­dress the dis­ease by mak­ing a per­ma­nent change to the DNA of cells.”

“Eras­ing and writ­ing in” ed­its with­out clip­ping could be in­cred­i­bly use­ful in these cas­es.  Liu said edit­ing mu­ta­tions in the nu­cle­obas­es of DNA and RNA has the po­ten­tial to “re­verse a large frac­tion — per­haps the ma­jor­i­ty — of point mu­ta­tions as­so­ci­at­ed with dis­ease.”

But what are the odds that it will work? Liu said he’s hap­py with ear­ly in­di­ca­tions. Af­ter first pub­lish­ing work on these base ed­i­tors back in 2016, dozens of re­searchers have tried their hand at the tech­nol­o­gy and saw suc­cess in bac­te­ria, fun­gi, in­sects, mice, and even hu­man em­bryos.

Beam wants to stay qui­et on which dis­eases its first tar­gets will tack­le but did men­tion that the com­pa­ny is ac­tive­ly work­ing on 10-15 tar­gets and is “en­cour­aged by ear­ly re­sults.” This Se­ries A fund­ing, which was led by F-Prime Cap­i­tal Part­ners and ARCH, should take the com­pa­ny “mul­ti­ple years,” Evans said.

“The length of that run­way gives us con­fi­dence that we can push for­ward quick­ly with lead pro­grams, but al­so take time to go deep on the sci­ence and build a broad pipeline in par­al­lel,” Evans said.

Evans has joined Beam from ARCH, where he was a part­ner. Al­though VCs of­ten sit in as tem­po­rary CEOs while a start­up hunts for a more per­ma­nent can­di­date, Evans said he’s in for the long haul at Beam. While still af­fil­i­at­ed with ARCH, Evans is join­ing Beam full time.

“At Agios, I saw the pow­er of pre­ci­sion med­i­cine to di­rect­ly cor­rect mu­ta­tions in leukemia,” Evans said. “That was a pow­er­ful ex­pe­ri­ence for me, and I want to do that again. With base edit­ing, I see a re­al po­ten­tial to do it again and again.”

Beam has plans to set up an of­fice in the heart of Cam­bridge’s Cen­tral Square neigh­bor­hood. It em­ploys 15 peo­ple to­day, and plans on hir­ing “sev­er­al more” in the near fu­ture.


Top Im­age: Feng Zhang, David Liu and J Kei­th Joung. BEAM THER­A­PEU­TICS

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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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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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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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.