Af­ter hint­ing it was ex­plor­ing the le­gal­i­ty of the FDA’s ap­proval of a ri­val drug from fam­i­ly-run com­pa­ny Ja­cobus Phar­ma­ceu­ti­cals, Cat­a­lyst Phar­ma­ceu­ti­cals on Wednes­day filed a law­suit against the health reg­u­la­tor — ef­fec­tive­ly ac­cus­ing the agency of bow­ing to po­lit­i­cal pres­sure sur­round­ing sky­rock­et­ing drug prices.

Patrick McE­namy Twit­ter

Be­fore Cat­a­lyst’s Fir­dapse (which car­ries an av­er­age an­nu­al list price of $375,000) was sanc­tioned for use in Lam­bert-Eaton myas­thenic syn­drome (LEMS) by the FDA, hun­dreds of pa­tients had been able to ac­cess a sim­i­lar drug from com­pound­ing phar­ma­cies for a frac­tion of the cost, or Ja­cobus’ for free, as part of an FDA-rat­i­fied com­pas­sion­ate use pro­gram. But the ap­proval of the Cat­a­lyst drug — ac­com­pa­nied by mar­ket ex­clu­siv­i­ty span­ning sev­en years — ef­fec­tive­ly pre­clud­ed Ja­cobus and com­pound­ing phar­ma­cies from sell­ing their ver­sions.

Then, in an un­ex­pect­ed twist, weeks ago the FDA en­dorsed New Jer­sey-based Ja­cobus’ ver­sion in pe­di­atric pa­tients, on the ba­sis of adult da­ta — a move that could spark off-la­bel pre­scrip­tion in adults (As far as the FDA is con­cerned, doc­tors can pre­scribe drugs for off-la­bel use when they judge that it is med­ical­ly ap­pro­pri­ate for their pa­tient). Cat­a­lysts’ shares $CPRX sank on the an­nounce­ment and have not since re­vived. Adding fu­el to the fire, ear­li­er this week Ja­cobus re­vealed its drug, Ruzur­gi, will car­ry a list price that is less than half of Fir­dapse’s.

Cat­a­lyst main­tains that typ­i­cal­ly, cov­ered pa­tients pay less than $10 per month out-of-pock­et.

In LEMS pa­tients, the body’s own im­mune sys­tem launch­es an at­tack on the neu­ro­mus­cu­lar junc­tion — which con­nects nerves and mus­cles. The con­di­tion is as­so­ci­at­ed with oth­er au­toim­mune dis­eases, but tends to oc­cur in pa­tients with can­cer. Glob­al­ly it is es­ti­mat­ed to af­fect three per mil­lion in­di­vid­u­als, ac­cord­ing to the FDA, but its pe­di­atric preva­lence is not clear. Cat­a­lyst sug­gest­ed there are 3,000 LEMS US pa­tients, of which 300 are on Fir­dapse. Some es­ti­mates sug­gest there are few­er than three dozen pe­di­atric pa­tients in the Unit­ed States.

Un­der fed­er­al law, the agency is meant to treat all com­pa­nies in the same man­ner. Cat­a­lyst has as­sert­ed the agency un­der­mined the com­pa­ny’s or­phan drug ex­clu­siv­i­ty, and vi­o­lat­ed fed­er­al law by play­ing fa­vorites in con­text of a hy­per­vig­i­lant pric­ing en­vi­ron­ment.

The ap­proval let­ters for Cat­a­lyst and Ja­cobus sug­gest that while the for­mer sub­mit­ted a body of clin­i­cal tri­al ev­i­dence as part of the pack­age the FDA re­viewed, the lat­ter did not sub­mit da­ta from cer­tain tox­i­col­o­gy stud­ies. In­stead, the FDA has asked Ja­cobus to pro­vide these da­ta as a post-mar­ket­ing re­quire­ment.

“We felt that the FDA’s ap­proval of Ruzur­gi was ar­bi­trary, capri­cious and not in ac­cord with the Food, Drug & Cos­met­ic Act,” Cat­a­lyst chief Patrick McE­nany told End­points News. 

“We be­lieve the FDA was im­prop­er­ly in­flu­enced in mak­ing this de­ci­sion by po­lit­i­cal pres­sures with re­gard to high drug pric­ing and we think it sets a hor­ri­ble prece­dent for oth­er com­pa­nies work­ing to de­vel­op drugs to treat rare dis­eases — it could in fact dis­cour­age com­pa­nies from in­vest­ing mil­lions of dol­lars and spend­ing many years to do this,” he said.

Ear­li­er this year, Ver­mont Sen­a­tor Bernie Sanders — ahead of his an­nounce­ment to make a sec­ond at­tempt at the pres­i­den­cy — spot­light­ed Cat­a­lyst for the “im­moral ex­ploita­tion of pa­tients.”

McE­nany em­pha­sized that Cat­a­lyst has spent more than $100 mil­lion dol­lars in de­vel­op­ing the drug over the last sev­en years — and that his hope is the law­suit will cul­mi­nate in the with­draw­al of the Ruzur­gi ap­proval.

An FDA spokesper­son said the agency does not com­ment on pend­ing lit­i­ga­tion. End­points News has con­tact­ed Ja­cobus for com­ment.

Im­age: An­drew Harnik, AP Im­ages

Many in the pharma world are hoping — better yet, expecting — JAK inhibitors to provide one of the next big boons for the industry. Few have invested as heavily in this area as Pfizer, which boasts a portfolio including Xeljanz and at least five mid-to-late stage candidates in the pipeline.

But a top Wall Street analyst is pumping the brakes on just how much good fortune is in store for the Big Pharma.

Gilead is surging again off data that suggest its antiviral remdesivir might improve survival.

The new data come from an analysis Gilead conducted comparing the death rate and recovery time of patients in one of its remdesivir trials to a group of 800 patients “with similar baseline characteristics and disease severity” who received only standard-of-care around the same time. The result, they said, suggested that patients who received remdesivir had a 62% better chance at surviving than those who did not.

Four more biotechs are raising their offers in an already record year for biotech IPOs.

Softbank-backed Relay Therapeutics scratched out its original $200 million filing and proposed a $250 million raise that would make them a $1.5 billion company. CAR-T developer Poseida Therapeutics bumped itself up $74 million to $224 million. Off-the-shelf cell therapy startup Nkarta upped from $150 million to $215 million — and then priced even higher, at $252 million. France’s Inventiva did its own modest reset, raising its bar from $102 million to $108 million.