Af­ter build­ing a rep as an ar­chi­tect of ex­per­i­ments, Rx­Cel­er­ate plants its flag in Amer­i­ca

When XO1 was bought out by J&J a cou­ple of years ago, the seed in­vestors at In­dex, now Medicxi, made it Ex­hib­it A for their busi­ness mod­el on cre­at­ing a port­fo­lio of as­set-based biotechs.

What start­ed off with a bit of sci­en­tif­ic sleuthing by a pair of re­searchers at Cam­bridge Uni­ver­si­ty — Trevor Baglin and Jim Hunt­ing­ton — led to an an­ti­body pro­gram for a drug dubbed ichor­cum­ab that promised to po­ten­tial­ly act as an an­ti­co­ag­u­lant, with­out the in­her­ent risk of se­vere bleed­ing that in­evitably haunts the class.

Patrick Ver­heyen, who was run­ning the J&J In­no­va­tion of­fice in Lon­don at the time, called this deal a prime ex­am­ple of the way the phar­ma gi­ant was able to reel in top sci­en­tif­ic pro­grams around the world.

But be­tween the chance dis­cov­ery based on an odd med­ical case dat­ing back to 2008 and J&J’s ac­qui­si­tion, XO1, with­out build­ing a staff or do­ing all the nor­mal things as­so­ci­at­ed with biotech star­tups, had to push through a crit­i­cal pre­clin­i­cal study that could prove it had some­thing of re­al val­ue.

Richard Ma­son

“What we re­al­ly need­ed to do in XO1,” XO1 for­mer chief and sole full time staffer Richard Ma­son tells me, “was to show this an­ti­body we cre­at­ed was an an­ti­co­ag­u­lant that didn’t in­crease bleed­ing risk.”

That’s nev­er been done in any sim­i­lar de­vel­op­ment pro­gram be­fore, by any­one.

To do that, Ma­son re­lied on a group in Cam­bridge, UK called Rx­Cel­er­ate. Co-found­ed by David Grainger, a Medicxi part­ner who al­so act­ed as chief sci­en­tif­ic of­fi­cer for XO1, the lab staff didn’t just run a pre­clin­i­cal study un­der con­tract. They built the study from the ground up, ques­tion­ing every step along the way in a field be­set by ques­tions of le­git­i­ma­cy and in­tegri­ty.

Says Ma­son: “They are the ar­chi­tects of the ex­per­i­ment.”

XO1’s ex­pe­ri­ence un­der­scores one of the hard truths about drug dis­cov­ery projects. The lit­er­a­ture is of­ten mis­lead­ing, the mod­els in use may be sus­pect, some­times some of the hard­ware de­scribed doesn’t even ex­ist, says Ma­son. And all of that was on dis­play in their ground­work on an­ti­co­ag­u­la­tion.

A sci­en­tist by train­ing, Grainger and his col­leagues at Medicxi have carved out a rep­u­ta­tion for com­bin­ing sci­en­tif­ic rig­or in ear­ly-stage re­search with a rep for carv­ing the hard costs of do­ing a start­up down to the bare es­sen­tials — in­clud­ing the cre­ative use of out­sourc­ing to keep their star­tups vir­tu­al.

Now Rx­Cel­er­ate has opened up a Boston/Cam­bridge of­fice to in­tro­duce their work un­der US EVP Lau­ra Hamil­ton, the for­mer BD chief at Mass­Bio.

David Grainger

“We are not a CRO,” Grainger tells me lev­el­ly. So I asked for a look at one case to ex­plain what they do. And that led me to Ma­son, who didn’t just do a deal with J&J — a few months lat­er he took Ver­heyen’s job run­ning J&J In­no­va­tion in Lon­don. (Ver­heyen was pro­mot­ed to run BD for all of J&J. Hunt­ing­ton, mean­while, caught the se­r­i­al en­tre­pre­neur bug and has since launched a se­ries of biotech up­starts out of his Cam­bridge lab.)

The way Rx­Cel­er­ate works, Ma­son says, “it starts with the ba­sic sci­ence and takes noth­ing for grant­ed.”

Jill Reck­less — the CEO at Rx­Cel­er­ate, who left with a group of re­searchers at Cam­bridge to launch the lab at Rx­Cel­er­ate with Grainger — start­ed by re­view­ing the lit­er­a­ture on throm­bo­sis and bleed­ing mod­els.

“We found that many of those pa­pers had some prob­lems with them,” says Ma­son. Then there was the rat tail clip mod­el used to mea­sure bleed­ing in ro­dents.

“We found sub­stan­tial prob­lems with the way that was done in the lit­er­a­ture,” adds Ma­son. “Prob­lems with re­pro­ducibil­i­ty.”

Rather than repli­cate bad sci­ence, Rx­Cel­er­ate cre­at­ed new mod­el ex­per­i­ments where nec­es­sary, and dou­bled down with larg­er an­i­mal mod­els to demon­strate po­ten­tial in hu­mans.

“What we are try­ing to of­fer is the abil­i­ty to out­source the think­ing be­hind drug de­vel­o­ment,” says Grainger. CROs are great for de­fined tasks, he adds, but when it comes to do­ing the ar­chi­tec­ture: “CROs don’t do that very well.”

Jill Reck­less

It’s the kind of work that ap­peals to any­one in a cash con­strained en­vi­ron­ment, says Reck­less, whether that’s a biotech start­up or a ma­jor bio­phar­ma, work­ing on a bud­get to see where it has as­sets of re­al val­ue to pur­sue. It’s all about stay­ing fo­cused while re­main­ing skep­ti­cal about what’s come be­fore.

“By not do­ing the things that don’t need to be done,” says Grainger,  “that’s where the bulk of the cost sav­ings come.”

How’s J&J’s team do­ing with XO1’s drug, now dubbed “9375”?

So far so good, says Ma­son, who vis­it­ed with the group in charge at J&J as they look for a next-gen­er­a­tion an­tithrom­bin to fol­low Xarel­to. They’re through Phase I and ex­am­in­ing next steps for Phase II.

Says Ma­son: “Stay tuned.”

2023 Spot­light on the Fu­ture of Drug De­vel­op­ment for Small and Mid-Sized Biotechs

In the context of today’s global economic environment, there is an increasing need to work smarter, faster and leaner across all facets of the life sciences industry.  This is particularly true for small and mid-sized biotech companies, many of which are facing declining valuations and competing for increasingly limited funding to propel their science forward.  It is important to recognize that within this framework, many of these smaller companies already find themselves resource-challenged to design and manage clinical studies themselves because they don’t have large teams or in-house experts in navigating the various aspects of the drug development journey. This can be particularly challenging for the most complex and difficult to treat diseases where no previous pathway exists and patients are urgently awaiting breakthroughs.

Dipal Doshi, Entrada Therapeutics CEO

Ver­tex just found the next big ‘trans­for­ma­tive’ thing for the pipeline — at a biotech just down the street

Back in the summer of 2019, when I was covering Vertex’s executive chairman Jeff Leiden’s plans for the pipeline, I picked up on a distinct focus on myotonic dystrophy Type I, or DM1 — one of what Leiden called “two diseases (with DMD) we’re interested in and we continue to look for those assets.”

Today, Leiden’s successor at the helm of Vertex, CEO Reshma Kewalramani, is plunking down $250 million in cash to go the extra mile on DM1. The lion’s share of that is for the upfront, with a small reserve for equity in a deal that lines Vertex up with a neighbor in Seaport that has been rather quietly going at both of Vertex’s early disease targets with preclinical assets.

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WIB22: Am­ber Salz­man had few op­tions when her son was di­ag­nosed with a rare ge­net­ic dis­ease. So she cre­at­ed a bet­ter one

This profile is part of Endpoints News’ 2022 special report about Women in Biopharma R&D. You can read the full report here.

Amber Salzman’s life changed on a cold, damp day in Paris over tiny plastic cups of lukewarm tea.

She was meeting with Patrick Aubourg, a French neurologist studying adrenoleukodystrophy, or ALD, a rare genetic condition that causes rapid neurological decline in young boys. It’s a sinister disease that often leads to disability or death within just a few years. Salzman’s nephew was diagnosed at just 6 or 7 years old, and died at the age of 12.

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WIB22: Lead­ing NK cell re­searcher re­flects on roots in Iran, the UK and Texas

This profile is part of Endpoints News’ 2022 special report about Women in Biopharma R&D. You can read the full report here.

In a small but widely-cited 11-person study published in NEJM in 2020, seven patients saw signs of their cancer completely go away after getting a new therapy made from natural killer cells. The study was one of the earliest to provide clinical proof that the experimental treatment method had promise.

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WIB22: Chas­ing af­ter ever-evolv­ing sci­ence takes a drug hunter across the pond

This profile is part of Endpoints News’ 2022 special report about Women in Biopharma R&D. You can read the full report here.

Like many scientists, Fiona Marshall would tell you that she loved the natural world growing up — going to look at crabs running around the beach near her childhood home, pondering about the tides. But one thing about biology, in particular, stood out: It was constantly changing, and changing very quickly.

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Ahead of ad­comm, FDA rais­es un­cer­tain­ties on ben­e­fit-risk pro­file of Cy­to­ki­net­ic­s' po­ten­tial heart drug

The FDA’s Cardiovascular and Renal Drugs Advisory Committee will meet next Tuesday to discuss whether Cytokinetics’ potential heart drug can safely reduce the risk of cardiovascular death and heart failure in patients with symptomatic chronic heart failure with reduced ejection fraction.

The drug, known as omecamtiv mecarbil and in development for more than 15 years, has seen mixed results, with a first Phase III readout from November 2020 hitting the primary endpoint of reducing the odds of hospitalization or other urgent care for heart failure by 8%. But it also missed a key secondary endpoint analysts had pegged as key to breaking into the market.

David Light, Valisure CEO

Val­isure in the hot seat: New Form 483 over a 2021 in­spec­tion as CEO fires back

The notorious drug testing company Valisure, which has made a name for itself by forcing FDA’s hand with some of its safety-related uncoverings, received a letter this week after the FDA uncovered violations at its Connecticut-based testing lab in 2021.

The letter, which was sent on Dec. 5, stated that the FDA is “concerned” that Valisure was not aware of  drug supply chain security requirements.

Ab­b­Vie slapped with age dis­crim­i­na­tion law­suit, fol­low­ing oth­er phar­mas

Add AbbVie to the list of pharma companies currently facing age discrimination allegations.

Pennsylvania resident Thomas Hesch filed suit against AbbVie on Wednesday, accusing the company of passing him over for promotions in favor of younger candidates.

Despite 30 years of pharma experience, “Hesch has consistently seen younger, less qualified employees promoted over him,” the complaint states.

Rami Elghandour, Arcellx CEO

Up­dat­ed: Gilead, Ar­cel­lx team up on an­ti-BC­MA CAR-T as biotech touts a 100% re­sponse rate at #ASH22

Gilead and Kite are plunking down big cash to get into the anti-BCMA CAR-T game.

The pair will shell out $225 million in cash upfront and $100 million in equity to Arcellx, Kite announced Friday morning, to develop the biotech’s lead CAR-T program together. Kite will handle commercialization and co-development with Arcellx, and profits in the US will be split 50-50.

Concurrent with the deal, Arcellx revealed its latest cut of data for the program known as CART-ddBCMA, ahead of a full presentation at this weekend’s ASH conference — a 100% response rate among patients getting the therapy. Investors jumped at the dual announcements, sending Arcellx shares $ACLX up more than 25% in Friday’s morning session.

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