Keytru­da/epaca­do­stat com­bo crash­es in PhI­II melanoma study, rais­ing ques­tions about the fu­ture of IDO for In­cyte

A close­ly-watched Phase III study com­bin­ing Mer­ck’s PD-1 star Keytru­da with In­cyte’s IDO1 drug epaca­do­stat for metasta­t­ic melanoma has failed, cast­ing a pall over the fu­ture of this com­bi­na­tion ap­proach.

Ab­sent a sig­nif­i­cant im­prove­ment in pro­gres­sion-free sur­vival, as well as the like­ly fail­ure of the drug com­bi­na­tion to ex­tend over­all sur­vival, the in­ves­ti­ga­tors are halt­ing the study. In­cyte stuck with the top-line re­sults in their re­lease, promis­ing to roll out the full da­ta set lat­er. And they made it clear in a call with an­a­lysts this morn­ing that the ECHO-301 study fail­ure “has a neg­a­tive im­pact on the prob­a­bil­i­ty of suc­cess of the oth­er (com­bi­na­tion) stud­ies” — send­ing a shock wave through the I/O field.

In­cyte’s shares plunged 23% on the news, wip­ing out more than $3.5 bil­lion in mar­ket cap. The im­pli­ca­tions for oth­er IDO1 drugs al­so dam­aged oth­er com­pa­nies in the field, in­clud­ing NewLink $NLNK, down 44%, as well as Bris­tol-My­ers Squibb $BMY down 2.6%.

Steven Stein

Mer­ck is one of a slate of bio­phar­ma com­pa­nies to com­bine their check­points with In­cyte’s IDO drug, look­ing to im­prove pa­tients chances for liv­ing longer with can­cer. The fail­ure of this first late-stage test, af­ter stok­ing hopes for some ma­jor ad­vances, now leaves In­cyte’s drug $IN­CY in a pre­car­i­ous po­si­tion, cre­at­ing a cri­sis for CEO Hervé Hop­penot.

Epaca­do­stat was num­ber 3 on Eval­u­ate Phar­ma’s top 10 list of 2018 launch­es, with close to $2 bil­lion in pro­ject­ed peak sales es­ti­mates. And UBS an­a­lysts gave this study a 100% chance of suc­cess, not­ing the high ex­pec­ta­tions — and hype — fo­cused on this drug.

In­ves­ti­ga­tors tracked a haz­ard ra­tio of 1.00, which “leaves no doubt that in this study… the com­pound didn’t per­form,” said Steven Stein, the chief med­ical of­fi­cer, in the call. And there was no pos­i­tive glim­mer of hope seen in any sub­group analy­sis. “Giv­en those haz­ard ra­tios it is go­ing to be dif­fi­cult to dis­cern a sub­group with suf­fi­cient ef­fect.”

The fail­ure of the study al­so rais­es the chances that oth­er tri­als in the pro­gram may need to be ad­just­ed, he added, with pos­si­ble sta­tis­ti­cal and bio­mark­er mod­i­fi­ca­tions.

An­a­lysts had been en­cour­aged last sum­mer with the lat­est look at da­ta from a sin­gle-arm melanoma study, mak­ing this one of the most an­tic­i­pat­ed stud­ies of 2018. In­cyte faces a dif­fi­cult task now in re­build­ing hopes for a block­buster fu­ture as the field awaits a long string of read outs from com­bi­na­tion tri­als.

An­tic­i­pat­ing some big re­turns, a whole host of play­ers has dived in­to IDO. A re­cent study from the Can­cer Re­search In­sti­tute found that there were 18 IDOs in the pipeline. Epaca­do­stat was the most ad­vanced of them all, but there have been a num­ber of set­backs, in­clud­ing a pro­gram pur­sued by Genen­tech, which the com­pa­ny aban­doned af­ter see­ing weak re­sults. And a grow­ing line­up of fail­ures will boost fears that this is the wrong tar­get.

That woe­ful feel­ing didn’t help mat­ters at Bris­tol-My­ers, which has one of the most ad­vanced IDOs in the clin­ic af­ter In­cyte’s pro­gram. Bris­tol-My­ers paid $1.25 bil­lion to ob­tain their drug in the Flexus buy­out, which was im­pli­cat­ed in a suit In­cyte filed claim­ing that a for­mer staffer had stolen trade se­crets on their drug, hand­ing them off to Flexus. Sev­er­al an­a­lysts have out­lined rea­sons why they think that Bris­tol-My­ers has the bet­ter of the two drugs.

With the alarm bells ring­ing loud­ly all day Fri­day, NewLink re­spond­ed by putting out a re­lease as­sert­ing that its drug in­dox­i­mod had a “dif­fer­en­ti­at­ed mech­a­nism of ac­tion.” The biotech al­so said that it would do a re­view of its pro­grams in light of the set­back at In­cyte.

The failed study will help gain “un­der­stand­ing of the role of IDO1 in­hi­bi­tion in com­bi­na­tion with PD-1 an­tag­o­nists, and may in­form our broad­er epaca­do­stat clin­i­cal de­vel­op­ment pro­gram,” said Steven Stein, chief med­ical of­fi­cer, In­cyte. “We re­main ded­i­cat­ed to trans­form­ing the treat­ment of can­cer and will con­tin­ue to ex­plore how IDO1 in­hi­bi­tion and oth­er nov­el mech­a­nisms can po­ten­tial­ly im­prove out­comes for pa­tients in need.”


Im­age: Hervé Hop­penot, In­cyte CEO at an End­points News event, Jan­u­ary 2018. END­POINTS NEWS

Mi­no­ryx and Sper­o­genix ink an ex­clu­sive li­cense agree­ment to de­vel­op and com­mer­cial­ize lerigli­ta­zone in Chi­na

September 23, 2020 – Hong Kong, Beijing, Shanghai (China) and Mataró, Barcelona (Spain)  

Minoryx will receive an upfront and milestone payments of up to $78 million, as well as double digit royalties on annual net sales 

Sperogenix will receive exclusive rights to develop and commercialize leriglitazone for the treatment of X-linked adrenoleukodystrophy (X-ALD), a rare life-threatening neurological condition

FDA chief Stephen Hahn on Capitol Hill earlier this week (Getty Images)

As FDA buck­les un­der the strain of a pan­dem­ic work­load, Trump again ac­cus­es the agency of a po­lit­i­cal hit job

Peter Marks appeared before a virtual SVB Leerink audience yesterday and said that his staff at FDA’s CBER is on the verge of working around the clock. Manufacturing inspections, policy work and sponsor communications have all been pushed down the to-do list so that they can be responsive to Covid-related interactions. And the agency’s objective right now? “To save as many lives as we can,” Marks said, likening the mortality on the current outbreak as equivalent to “a nuclear bomb on a small city.”

Daniel O'Day, Gilead CEO (Kevin Dietsch/UPI/Bloomberg via Getty Images)

Play-by-play of Gilead­'s $21B Im­munomedics buy­out de­tails a fren­zied push — and mints a new biotech bil­lion­aire

Immunomedics had not really been looking for a buyout when the year began. Excited by its BLA for Trodelvy, submitted to the FDA in late 2019, executive chairman Behzad Aghazadeh started off looking for potential licensing deals and zeroed in on four potential partners, including Gilead, following January’s JP Morgan Healthcare Conference in San Francisco. Such talks advanced throughout the year, with discussions advancing to the second round in mid-August.

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The win­dow is wide open as four more biotechs join the go-go IPO class of 2020

It’s another day of hauling cash in the biopharma world as four more IPOs priced Friday and a fifth filed its initial paperwork.

The biggest offering comes from PMV Pharma, an oncology biotech focusing on p53 mutations, which raised $211.8 million after pricing shares at $18 apiece. Prelude Therapeutics, developing PRMT5 inhibitors for rare cancers, was next with a $158 million raise, pricing shares at $19 each. Graybug Vision raised $90 million after pricing at $16 per share for its wet AMD candidates, and breast cancer biotech Greenwich Lifesciences brought up the rear with a small, $7 million raise after pricing shares at $5.75.

J&J of­fers PhI/IIa da­ta show­ing its sin­gle-dose vac­cine can stir up suf­fi­cient im­mune re­sponse

Days after J&J dosed the first participants of its Phase III ENSEMBLE trial, the pharma giant has detailed the early-stage data that gave them confidence in a single-dose regimen.

Testing two dose levels either as a single dose or in a two-dose schedule spaced by 56 days in, the scientists from Janssen, the J&J subsidiary developing its vaccine, reported that the low dose induced a similar immune response as the high dose. The interim Phase I/IIa results were posted in a preprint on medRxiv.

President Donald Trump reacts after signing an executive order following his remarks on his healthcare policies yesterday in Charlotte, North Carolina (Getty Images)

Op-ed: Will phar­ma re­al­ly pay for Trump’s lat­est law­less promise to 33 mil­lion Medicare ben­e­fi­cia­ries? Not like­ly

Sitting atop the executive branch, President Donald Trump is the ultimate authority at the FDA. He can fast track any vaccine to approval himself. If it came to that, of course.

What he can’t do is unilaterally order the legislative branch to loosen the Treasury’s coffers for $6.6 billion. Nor can he command pharmaceutical companies to pay for $200 vouchers sent to 33 million Medicare beneficiaries for prescription drugs before the election.

Pal­la­dio bags $20 mil­lion Se­ries B to top­ple a prob­lem­at­ic kid­ney dis­ease drug

Palladio Biosciences just took one step further in its quest to topple Otsuka’s Samsca with its own — it hopes safer — autosomal dominant polycystic kidney disease (ADPKD) drug.

The Pennsylvania-based biotech announced a $20 million Series B on Friday, which will fund a 10-person Phase III trial of its vasopressin V2 receptor agonist, lixivaptan. CEO Alex Martin expects to read out data in the first half of next year, then launch straight into a larger pivotal Phase III study with about 1,200 participants.

New York governor Andrew Cuomo (AP Images)

An­drew Cuo­mo says New York will un­der­take its own vac­cine re­view process, and wouldn’t rec­om­mend trust­ing the fed­er­al gov­ern­ment

The concerns keep mounting over President Donald Trump’s politicization of the FDA and other federal agencies guiding the development of a safe and effective vaccine. And today, the telegenic New York governor Andrew Cuomo appeared to introduce even more politics into the matter — latest in an ongoing series of incidents that have cast the proudly independent FDA in starkly political terms.

During his daily press conference Cuomo said that the state will review any coronavirus vaccines approved by the federal government, citing a lack of trust in the Trump administration. The announcement comes one day after Trump accused the FDA of making an “extremely political” move in proposing stricter vaccine guidance.

Laura Shawver (Silverback Therapeutics)

Fol­low­ing a hefty Se­ries B, Sil­ver­back Ther­a­peu­tics quick­ly pulls in $85M for 'an im­por­tant growth phase'

Months after reeling in a $78 million Series B round, Silverback Therapeutics has hooked an even larger Series C.

The Seattle-based company announced Wednesday that it netted $85 million from a slate of new and previous investors. The quick boost could be a sign that an IPO is on the way.

In an email, Silverback CEO Laura Shawver told me she was “not able to provide any additional comments about Silverback” beyond what was shared in the company’s news release. In the prepared statement, she said the company is at “an important growth phase.”