Bris­tol-My­ers dou­bles down on PsiOxus in $936M-plus “armed” on­colyt­ic virus deal

John Bea­dle, PsiOxus

Bris­tol-My­ers Squibb $BMY is tak­ing its re­la­tion­ship with PsiOxus to the prover­bial next lev­el. The big biotech is grab­bing rights to the Ox­ford-based com­pa­ny’s next-gen on­colyt­ic virus ther­a­py, which em­ploys a trio of tu­mor cell-killing ap­proach­es to rein in can­cer.

Al­ready al­lied on a com­bi­na­tion of Op­di­vo with PsiOxus’ lead­ing on­colyt­ic virus, enade­no­tu­cirev, Bris­tol-My­ers has come back for NG-348, an “armed” on­colyt­ic virus that adds im­muno-ther­a­peu­tic trans­genes to the can­cer cell de­stroy­ing mix. Bris­tol-My­ers is of­fer­ing $50 mil­lion up­front, along with new re­search sup­port and up to $886 mil­lion in mile­stones if all the cards turn in its fa­vor.

“They’re dou­bling down on the tech­nol­o­gy,” says PsiOxus CEO John Bea­dle, who spoke with me last sum­mer for a pro­file of the com­pa­ny. “This one they’re re­al­ly go­ing to take on and de­vel­op.”

“This is what we call tu­mor-spe­cif­ic im­muno­gene ther­a­py, ac­tu­al­ly chang­ing the phe­no­type of the tu­mor cell,” he adds. “Once in­fect­ed, two genes are de­liv­ered: an An­ti-CD3 and CD80, both pro­teins ex­pressed on the tu­mor cells. They act as anti­gen pre­sent­ing cells, to ac­ti­vate T cells.” And this ap­plies to any T cell, “re­gard­less of what it was pro­grammed to kill.”

This ap­proach — which is now head­ed in­to the clin­ic for the first time — builds on the ba­sic on­colyt­ic virus ap­proach, in which a virus is in­fused to in­fect a can­cer cell, trig­ger­ing rapid repli­ca­tion of the virus that in turn de­stroys the tar­get cell. In this par­tic­u­lar case, PsiOxus boasts about the ex­ten­sive work it did to se­lect a chimeric ade­n­ovirus that was nat­u­ral­ly more like­ly to gath­er in tu­mors and in­fect can­cer cells, while un­able to in­fect most nor­mal cells. The virus spreads from can­cer cell to can­cer cell. As the can­cer cells ex­plode, the re­leased anti­gens help dri­ve an im­mune re­sponse in a mop-up op­er­a­tion.

Am­gen has helped pi­o­neer the field with its ap­proval of Im­ly­g­ic (T-Vec), but PsiOxus and a grow­ing line­up of up­starts on both sides of the At­lantic are fol­low­ing sys­temic in­fu­sions for next-gen pro­grams that promise to do sig­nif­i­cant­ly bet­ter.

“This is our first ma­jor deal,” Bea­dle adds. “It brings a sig­nif­i­cant amount of up­front cash and it ac­tu­al­ly feeds in­to our abil­i­ty to grow the or­ga­ni­za­tion, but al­so takes for­ward a broad­er range of fol­lowup pro­grams.”

PsiOxus is now slat­ed to grow to more than 50 staffers next year, says Bea­dle, who’s tak­ing aim at a broad­er pipeline. And it al­so al­lows for growth in their small Philadel­phia of­fice, where Bea­dle will be adding clin­i­cal and reg­u­la­to­ry abil­i­ty.

What Will it Take to Re­al­ize the Promise and Po­ten­tial of Im­mune Cell Ther­a­pies?

What does it take to get to the finish line with a new cancer therapy – fast? With approvals in place and hundreds of immune cell therapy candidates in the pipeline, the global industry is poised to create a fundamental shift in cancer treatments towards precision medicine. At the same time, unique challenges associated with cell and process complexity present manufacturing bottlenecks that delay speed to market and heighten cost of goods sold (COGS) — these hurdles must be overcome to make precision treatments an option for every cancer patient. This series of articles highlights some of the key manufacturing challenges associated with the production of cell-based cancer therapies as well as the solutions needed to transcend them. Automation, process knowledge, scalability, and assured supply of high-quality starting material and reagents are all critical to realizing the full potential of CAR-based therapies and sustaining the momentum achieved in recent years. The articles will highlight leading-edge technologies that incorporate these features to integrate across workflows, accelerate timelines and reduce COGS – along with how these approaches are enabling the biopharmaceutical industry to cross the finish line faster with new treatment options for patients in need.

The biggest ques­tions fac­ing gene ther­a­py, the XLMTM com­mu­ni­ty, and Astel­las af­ter fourth pa­tient death

After three patients died last year in an Astellas gene therapy trial, the company halted the study and began figuring out how to safely get the program back on track. They would, executives eventually explained, cut the dose by more than half and institute a battery of other measures to try to prevent the same thing from happening again.

Then tragically, Astellas announced this week that the first patient to receive the new regimen had died, just weeks after administration.

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Lat­est news: It’s a no on uni­ver­sal boost­ers; Pa­tient death stuns gene ther­a­py field; In­side Tril­li­um’s $2.3B turn­around; and more

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Next week is shaping up to be a busy one, as our editor-in-chief John Carroll and managing editor Kyle Blankenship lead back-to-back discussions with a great group of experts to discuss the weekend news and trends. John will be spending 30 minutes with Jake Van Naarden, the CEO of Lilly Oncology, and Kyle has a brilliant panel lined up: Harvard’s Cigall Kadoch, Susan Galbraith, the new head of cancer R&D at AstraZeneca, Roy Baynes at Merck, and James Christensen at Mirati. Don’t miss out on the action — sign up here.

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Mi­rati's KRAS drug looks like the fa­vorite in colon can­cer with new da­ta, putting the pres­sure square on Am­gen

With Amgen already providing proof-of-concept for KRAS inhibitors with its sotorasib, Mirati Therapeutics is piecing together a follow-up effort in lung cancer with data it thinks are superior. But in colon cancer, where solo sotorasib has turned in a dud, Mirati may now have a strong case for superiority.

Mirati’s adagrasib, dosed solo or in combination with chemotherapy cetuximab, showed response rates grater than sotorasib solo  and as part of combination study in a similar patient population also revealed this week at #ESMO21. Mirati’s data were presented as part of a cohort update from the Phase II KRYSTAL-1 study testing adagrasib in a range of solid tumors harboring the KRAS-G12C mutation.

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President Biden and Pfizer CEO Albert Bourla (Patrick Semansky/AP Images)

Chaot­ic ad­comm sees Pfiz­er/BioN­Tech boost­ers re­ject­ed for gen­er­al pop­u­la­tion, but rec­om­mend­ed for old­er and high-risk pop­u­la­tions

With just days before President Joe Biden’s Covid-19 booster rollout is set to go into effect, an FDA advisory committee appeared on the verge of not recommending boosters for anyone in the US before a last-minute change of wording laid the groundwork for older adults to have access to a third dose.

The FDA’s adcomm on Vaccines and Related Biological Products (VRBPAC) roundly rejected Pfizer/BioNTech booster shots for all individuals older than 16 by a 16-2 vote Friday afternoon. Soon after, however, the agency posed committee members a new question limiting booster use to the 65-and-older population and individuals at high risk of disease due to occupational exposure or comorbidities.

The best of the rest: High­lights from the be­low-the-fold pre­sen­ta­tions at #ES­MO21

This year’s ESMO Congress has had a major focus on Big Pharma drugs — most notably candidates from Merck and AstraZeneca — but there have also been updates from smaller biotechs with data looking to challenge the big-name drugmakers.

Today, we’re highlighting some of the data releases that flew under the radar at #ESMO21 — whether from early-stage drugs looking to make a mark or older stalwarts with interesting follow-up data.

As­traZeneca, Dai­ichi Sanky­o's ADC En­her­tu blows away Roche's Kad­cy­la in sec­ond-line ad­vanced breast can­cer

AstraZeneca and Japanese drugmaker Daiichi Sankyo think they’ve struck gold with their next-gen ADC drug Enhertu, which has shown some striking data in late-stage breast cancer trials and early solid tumor tests. Getting into earlier patients is now the goal, starting with Enhertu’s complete walkover of a Roche drug in second-line breast cancer revealed Saturday.

Enhertu cut the risk of disease progression or death by a whopping 72% (p=<0.0001) compared with Roche’s ADC Kadcyla in second-line unresectable and/or metastatic HER2-positive breast cancer patients who had previously undergone treatment with a Herceptin-chemo combo, according to interim data from the Phase III DESTINY-Breast03 head-to-head study presented at this weekend’s #ESMO21.

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Merck Research Laboratories CMO Roy Baynes

Mer­ck­'s Keytru­da un­corks full da­ta on lat­est ad­ju­vant win — this time in melanoma — adding bricks to ear­ly can­cer wall

In recent months, the battle for PD-(L)1 dominance has spilled over into early cancer with Merck’s Keytruda and Bristol Myers Squibb’s Opdivo all alone on the front lines. Keytruda now has another shell in its bandolier, and it could spell a quick approval.

Keytruda cut the risk of relapse or death by 35% over placebo (p=0.00658) in high-risk, stage 2 melanoma patients who had previously undergone surgery to remove their tumors, according to full data from the Phase III KEYNOTE-716 presented Saturday at #ESMO21.

Mer­ck flesh­es out Keytru­da win in first-line cer­vi­cal can­cer, adding more fire­pow­er to its ear­ly can­cer push

Merck has worked hard to bring its I/O blockbuster Keytruda into earlier and earlier lines of therapy, and now the wonder drug appears poised to make a quick entry into early advanced cervical cancer.

A combination of Keytruda and chemotherapy with or without Roche’s Avastin cut the risk of death by 33% over chemo with or without Avastin (p=<0.001) in first-line patients with persistent, recurrent or metastatic cervical cancer, according to full data from the Phase III KEYNOTE-826 study presented Saturday at #ESMO21.