Late last month, on the Sean Spicer show, Patrick Soon-Shiong said a few things that set off a reaction we could not shake. A few days ago we sized the first of them in the Gulf: what this drug could be worth if it were approved to rebuild the immune system itself, in cancer and in sepsis. The number came back big enough that we could not stop there.
A PLAN HIDING IN PLAIN SIGHT
Because this is not one drug, or one region, and what he floated on that show was not even new. The lymphopenia and sepsis he described are just two pieces of something far bigger that he had put on the record months earlier, in plain sight, and that almost everyone forgot.
So take the tour back to this past February, when ImmunityBio spelled the whole thing out in a detailed press release: a three-year expansion plan for what it calls its Cancer BioShield platform.
It is not modest: more than thirty active and planned trials across ten tumor types, gone after one by one. And running under all of it is the very thing this drug is built to reverse, the collapse of the immune system itself, which is what lymphopenia and sepsis are. Run it to the end and you are not looking at a small biotech anymore. You are looking at what this company could grow into over one, three, five, ten, twenty, thirty years.
FOUR POSTS, EACH BIGGER THAN THE LAST
So we are doing something here we have not done before: a series of four posts, each one covering more ground than the last, with the full math shown at every step so you can check us. The first post, a few days ago, sized the Gulf.
This second post, today, is America, the biggest drug market on earth: what lymphopenia and sepsis alone could be worth here, the number a few of you asked for.
The third post will go global and add every cancer in the three-year plan, the whole world in a single pass. And the fourth post will ask the wild question almost no one says out loud: whether a drug that rebuilds the immune system could break the ceiling on what a single company is allowed to become, an Nvidia of biotech.
The numbers start sober in this post and end staggering by the fourth, and we will not hide a single step in between.
WHY AMERICA, AND THE BETS WE NAME
We continue with America, because it holds the biggest prize in the plan, and the slowest door to it.
And here is the honest deal for this one, so nobody feels sold to. On the things we can hold down, we hold them all the way down: net prices, not the sticker; a single country, when the drug is already sold in dozens more; a modest share of patients, not all of them.
But two dials we are not going to hide, because they are the bet: that this spreads fast, the way a survival drug spreads, and that it keeps its price the way survival drugs do. We name the bet and let you watch it in daylight. If you think either one goes the other way, we hand you the dial to turn it down yourself.
THE CLOCK HAS NOT EVEN STARTED
And hold one thing in your mind the whole way down, because we will keep saying it: none of this is approved yet. Not the lymphopenia use, not the sepsis use, nowhere on earth. Every number below is the size of a prize that opens only if and when those approvals come. So when you read Year 1, it does not mean next year. It means the first year after an approval that has not happened, and may never.
FIRST, THE SAME TWO DOORS
The idea is the one we walked in the Gulf, so we will keep it short. Your lymphocytes, chiefly your T cells and your natural killer cells, are the standing army of your immune system. Lymphopenia is that army falling below fighting strength. It happens to two large groups of very sick people: cancer patients whose chemotherapy and radiation burn down their own immune ranks, and sepsis patients whose bodies are overrun by infection.
A missing immune army is one of the strongest danger signs in medicine: these patients catch more infections, and they die sooner. ANKTIVA is built to rebuild that count. In America, both of those groups are enormous.
COUNT THE FALLEN
Let us count them the way we count everything here, one honest funnel, real numbers at every step.
America diagnoses about two million serious cancers a year, setting aside the common skin cancers that are usually just cut out. Walk the funnel:
- Of those two million, roughly two in three are treated with chemotherapy or radiation, the treatments that thin the immune ranks. That is about 1.3 million
- Of those, somewhere between half and two thirds see their lymphocyte count fall below strength. That leaves about 800,000 people a year
One honest note on that 800,000, because it matters. Today the drug's early-access program admits only the worst hit, the severely lymphopenic, and that gated group is a smaller slice of the pool, closer to 400,000 people a year.
The 800,000 is the fuller population a broad approval could reach, because a low immune count harms at every grade and this drug rebuilds it regardless of how far it fell. So read 800,000 as the market at a wide label, and 400,000 as the floor beneath it.
That is the first door. The second is sepsis, and in America it is just as wide: about 1.7 million cases a year, of whom around half go lymphopenic. Another 850,000 people.
Hold the total for a second. Well over a million and a half Americans a year, their immune armies on the floor, exactly the people this drug was built to put back on their feet.
NOW, IS A NUMBER THAT BIG EVEN REAL?
In America a course of ANKTIVA lists at about 322,000 dollars, because the United States pays more for its medicines than anywhere on earth. So the tempting move is to multiply:
- 800,000 patients a year,
- times 322,000 dollars a course = about 258 billion dollars, if every last one were treated,
- times even a fifteen percent share, roughly one in seven who actually get it = about 39 billion dollars a year.
Thirty-nine billion, from one indication, in one country. That would stand a single lymphopenia add-on beside Keytruda, the best-selling drug in the world today. So is a number that big actually real, or does it fall apart the moment you look closely?
You cannot answer that by picking a percentage that feels honest and multiplying. You answer it with three questions, and every one has a real, famous drug standing behind it: how fast does something like this get adopted, what actually happens to the price, and how does the money build over the years. Take them in order.
QUESTION #1 - HOW FAST DOES IT SPREAD?
A drug like this rolls out one of two ways, and history has run both.
The slow way is G-CSF, the drug given to chemo patients whose neutrophils, a different immune cell, collapse. It is the closest cousin a lymphopenia drug has: supportive care for a wrecked blood count, and it prevents a real and deadly complication, not just a bad lab value. It still took about fifteen years to reach most of the patients who needed it, and only got there once the cancer guidelines ordered doctors to use it above a set risk line. It became a five-to-six-billion-dollar franchise. Slowly, and only after a rule pulled it through.
The fast way is Keytruda. It reached more than half the patients in a new cancer setting in two to three years, because it does the one thing every patient and doctor is desperate for: it makes people live longer. Nobody waits for a committee to use a drug that saves lives. Survival drags a drug through the door.
THE SURVIVAL BET
So which is ANKTIVA for lymphopenia? Here is the tell, stated carefully. In its cancer trials, the patients whose immune counts recovered lived markedly longer than those whose counts stayed down. That is a striking signal, and it won an RMAT designation from the FDA in early 2025, the FDA's status for promising early evidence against a serious unmet need.
But an honest read has to add the caveat in the same breath: that signal comes from single-arm studies, not yet a randomized trial, so part of it could be that healthier patients recover their counts rather than the drug itself buying the time.
The randomized lung-cancer survival trial that would prove cause is still enrolling. So this is the bet, in the open: if the survival benefit holds up, this spreads like Keytruda, not like G-CSF, and we model it that way. If you think the data will disappoint, turn the dial toward the slow curve.
QUESTION #2 - WHAT ABOUT THE PRICE?
Two fears hide in that question. That a drug this broad must be sold cheap. And that America will force the price down anyway. Both point the same way, and it is not the way you would guess.
Start with what the drug is worth. This is not something that fixes a number on a lab chart. Its case is survival, and the drugs that carry a survival benefit sit at the very top of the market. Keytruda is estimated to collect roughly 120,000 dollars a year in net revenue per treated patient after rebates, off a list price now above 200,000.
ANKTIVA itself already lists at 322,000 for bladder cancer.
So the honest expectation is not that the price collapses to some supportive-care bargain. It is that the price stays high, because of what it does. So for the math ahead we use a net price near 120,000 dollars a year, roughly what a survival drug like Keytruda is estimated to collect once the rebates are stripped out, not the 322,000 list, because a list price is what a drug is billed at, never what a payer really pays.
What actually limits the money is not the price, it is the budget. Treating all 800,000 patients at the full 322,000 sticker would run to 258 billion dollars a year, and no health system on earth writes a check like that. So the drug gets rationed to the patients where the evidence is strongest and the need is greatest. High price, and for years a narrow slice of the people who could use it. That is the real shape of the early curve.
WHY THE PRICE MATTERS LESS THAN IT SEEMS
Here is the part worth sitting with, because it is the answer to the first fear. The health system will spend roughly a fixed amount on this problem, and that amount is the revenue. Deliver it as a high price to a narrow group, or a lower price to a broad group, and the money lands in a similar band. Price times patients is anchored to what the budget will bear, and that anchor is far harder for politics to move than the price alone.
Which is exactly why what companies actually do is hold the price. Keytruda launched near 150,000 dollars a year in 2014, nudged its list price up a little almost every year since, and never once cut it, all the way to 30 billion in sales; it grew on volume, not discounts, and still collects an estimated 120,000 net per patient today. In rich markets a price like this only falls years later, when a copycat forces it.
WON'T WASHINGTON FORCE IT DOWN?
Now the second fear, and it is real: Trump is pushing hard to drag American prices down toward what Europe pays. Medicare has already set a fresh round of negotiated prices on big cancer drugs, cuts of 40 to 60 percent on Xtandi, Ibrance and Pomalyst, effective 2027.
But here is the part almost nobody knows.
Keytruda, the biggest drug of all, was never even in that round; it was always slated for a later cycle, and a change in the law last year pushed its negotiated price back a further year, to 2029. Not an escape, a deferral, but it tells you the largest oncology drug on earth still has years of full pricing ahead of it.
So near term, prices for drugs like this hold. And if the politics eventually do reach this one, remember the offset: the price drops, but the volume keeps rising into the same unmet need, so the revenue is cushioned, not erased.
QUESTION #3 - HOW DOES THE MONEY BUILD?
Now watch it build. Not one number but a curve, because that is how a drug like this actually arrives, and it is the honest answer to when. And read the clock the way we did in the Gulf: each door starts counting from the day it is approved, not from today. Year 1 is the first year after an approval that does not yet exist, and may never come at all. The two approvals will not land together, sepsis later than cancer, so read each curve from its own start, not the same calendar year.
THE FIRST DOOR: CANCER
Every year is the same simple sum: pool, times share, times price. The pool is the one we counted, up to 800,000 patients. The price is a net 120,000 dollars, the real after-rebate figure a payer actually hands over, not the 322,000 sticker that only ever gets billed. And the share is the one thing that moves, climbing year by year as the drug reaches more of the people who need it. So it is 800,000, times that year's share, times 120,000, from the day it is approved:
- Year 1: 800,000 x 1.5% x 120,000 = about 1.4 billion dollars.
- Year 3: 800,000 x 5.5% x 120,000 = about 5.3 billion.
- Year 5: 800,000 x 10% x 120,000 = about 9.6 billion.
- Year 10: 800,000 x 15% x 120,000 = about 14.4 billion, where the share meets what the budget will carry.
Around year twelve, at its peak: about 15 billion, the last climb coming from the net price creeping up the way Keytruda's did, not from more patients.
That is a real drug growing fast for a decade, and the speed is deliberately Keytruda's, because a survival drug gets adopted fast.
But here the honesty matters, because it is the question people ask. Keytruda reached 30 billion in about ten years, and it did it by stacking around forty approved indications across some twenty cancers, not by one door climbing forever.
This is one door.
So it climbs Keytruda-fast to about 15 billion, and then, like every drug, it meets the wall: around year twelve or thirteen the patent lapses, cheaper copies arrive, the price erodes, the very cliff Keytruda itself now faces. One door rises, and one day it falls. The way you reach Keytruda's actual scale is the way Keytruda did, by opening the next doors one cancer at a time, and that is the next post.
THE SECOND DOOR: SEPSIS
Now the honest hard part, and we want to say it before a single number: sepsis is the most difficult thing in this whole post to size, because nothing like this drug has ever succeeded here. There is no ANKTIVA to point to, no adoption curve to borrow, no approved price to anchor. It is the graveyard where a generation of sepsis drugs has died. So read this entire door as the widest dial in the post, not a forecast.
Start with the one thing we do know, the pool. About 850,000 Americans a year go septic and lymphopenic, a touch bigger than the cancer pool. In the Gulf this was the larger of the two doors, because that young region sees little cancer; in older America the cancer pool catches all the way up, so here the two are twins. By raw size, sepsis could be every bit as big as the cancer door.
Here is the twist that makes it land beside the cancer door despite being the harder one to open. It is the slowest ramp in the post: it strikes in intensive care in hours, not over months of chemo; its trial is the furthest behind of all, so its approval and its clock start years after the cancer door; and payers are wary of a category that has failed them before.
Slow to take up.
But it is priced at half, about 60,000 for a short acute course instead of 120,000, and by the same budget logic that runs through this whole post, half the price lets twice as many patients fit under the same spending. Harder to adopt, but cheaper per patient and vast in number, it ends up right beside the cancer door. From the day sepsis is approved:
- Year 1: 850,000 x 1% x 60,000 = about 0.5 billion dollars.
- Year 5: 850,000 x 5% x 60,000 = about 2.5 billion.
- Year 10: 850,000 x 10% x 60,000 = about 5 billion.
- At its peak, roughly one in four reached, not because sepsis is adopted faster than cancer but because at half the price the same budget stretches over twice as many patients: 850,000 x 25% x 60,000 = about 13 billion.
Which is the same size as the cancer door, exactly as it was in the Gulf. And it is still the widest dial in the post: no drug has ever proven sepsis can be cracked at all, so if you doubt it, turn this whole door down.
Put both American doors at their peak, each a decade or more past its own approval, and the picture is this: roughly 28 billion dollars a year, from the collapse of the immune system alone, in one country. That would sit among the ten largest medicines on the planet by today's standards, and it counts not one of the other cancers still to come in the plan.
WHO DOES IT TAKE THE MONEY FROM?
The first question about a number this big is always who it takes the money from. The answer is almost nobody, because it replaces almost nothing. Chemotherapy and radiation are still used exactly as they are today; ANKTIVA is the layer that repairs the immune damage they cause, not a substitute for them.
There is no lymphopenia drug to displace, and it does not fight the checkpoint drugs like Keytruda either; it works alongside them, rebuilding the very immune army those drugs need, and in its own trials it was added on top of a checkpoint inhibitor in patients who had stopped responding. So this is new spending, in a category that does not yet exist, the way immunotherapy grew the whole cancer market instead of carving up the old one.
And that one fact, new money rather than borrowed money, cuts two ways at once, and both matter. It is why the prize takes from no one, and why the ceiling is so high. And it is the deepest reason that climb, fast as the demand for it is, still takes a decade to build rather than spiking overnight: the patients want it fast, but net-new spending is the hardest kind for a health system to absorb, so the money arrives phased, a few billion of fresh budget at a time, no matter how good the drug is.
A drug that simply swaps in for another can be paid for at once, because the money is already in the system. This one has to be found, so it builds the way we drew it, a decade of steady climbing, not a spike. The one thing that could still bite is not chemo or Keytruda but a future immune-restoration rival splitting this new category, the way Opdivo split the checkpoint market with Keytruda. We assume ANKTIVA keeps it. Turn that dial down if you expect company.
THE CEILING, NOT THE PLAN
So what about the thirty-nine billion we opened with? It was never a lie. It is the same cancer door, at the same one-in-seven share, but priced at the full 322,000 sticker instead of the 120,000 a payer actually pays: 800,000 x 15% x 322,000 is about 39 billion.
The naive number was never wrong about how many people. It was only wrong about the price. That is the ceiling of this one American door, cancer alone, in one country, every dial turned to its maximum at once, which no budget ever allows.
Do not confuse it with the whole plan; that number, every cancer and every country, is still two posts away. The real path here is the climb below it, and it is one of the biggest drugs in the country for as long as it runs.
So those are the three questions, and they point to one answer: a real, rising drug, climbing toward twenty-eight billion a year across both doors. But the math is the easy part. What is left is the reality around that number, and it cuts both ways: one reason it could climb faster than a launch from a standing start, and one reason America may be the very last place to feel it.
THE RUNWAY IS ALREADY CLEARED
Here is something almost nobody has noticed. In America, the FDA has already opened an expanded-access program for lymphopenia in solid-tumor patients, so the pathway exists before any approval does. Because it runs as expanded access the company cannot profit from it, so whatever demand shows up is real, not bought. And demand is showing up: the founder has said the requests climbed from about ten thousand when he first mentioned them to around thirteen thousand a couple of months later, and this is before a dollar of reimbursement exists.
Hold that number against the pool, because it matters twice.
Thirteen thousand requests is only about one to three percent of the patients this door could reach, so the demand is real but the room above it is enormous. When a real approval and a real price finally arrive for the cancer door, it does not start entirely cold. Part of the runway is already cleared, the kind of thing that can let a number climb faster than a launch from a standing start.
BUT AMERICA IS LAST TO ITS OWN PRIZE
Here is the sting. Everything above is real population and real math, and in America it is also the furthest away. The FDA has approved ANKTIVA for one narrow bladder-cancer indication and nothing else. For lymphopenia there is no approval and no dedicated trial of its own. The evidence lives inside the cancer trials, where ANKTIVA reverses the immune collapse and the recovery tracks with survival, and that, on top of ANKTIVA already being an approved drug, is what earned it the RMAT designation and the expanded-access program.
But the randomized trial that would prove cause is enrolling in lung cancer, and it has not read out. That is real, but it is the start of a years-long road, not the end of one. Meanwhile ImmunityBio has said it is already in talks with Gulf regulators about widening ANKTIVA's approved cancer indications, while America waits its turn.
Read that carefully, because it is not the story it looks like. Nobody is taking this drug from Americans and handing it to foreigners; Americans can already reach it through that program right now. It is a story about speed. The country holding the single biggest version of this prize has the slowest door to it, and the name on that door is the FDA, and the FDA does not hurry.
NONE OF IT IS SIGNED
Plainly: nothing is approved for lymphopenia or sepsis anywhere on earth, the United States included. Everything here is the size of a prize, not a promise that anyone collects it.
And the clock on every one of those years starts at an approval that has not happened and may never: Year 1 is the first year after that day, not a year from now.
The patient math is real and sourced. The price is a number we chose and labeled. The share of patients reached is a dial, and we have handed you the dial. The survival benefit is a real but unproven signal, not a settled fact. The receipts, every figure and its source, are in the reply below. None of this is advice.
THE NUMBER YOU ASKED FOR
So here is the American number you asked for. Not a single figure but a climb: a real, growing drug within a few years of approval, a blockbuster within a decade, peaking near 28 billion dollars a year across both doors, lymphopenia and sepsis, before the patent cliff pulls it back. From one country and two doors alone, that would rank among the ten largest medicines on earth by today's standards, and it is still only the modest opening of a far larger plan.
And could the real number land far from this?
Of course it could.
This is a sizing, not a prophecy, and every input in it is a judgment that could prove too low or too high: how many patients, how fast they are reached, what a payer actually pays, and whether the survival benefit holds up at all.
We built it as honestly as we know how and showed every step, because the point was never to hand you one number to trust. It was to hand you the dials. If you believe the drug is stronger than we assumed, turn them up; if you think we are dreaming, turn them down. The number moves with you.
WHAT COMES NEXT
So keep in mind what this is: one country, two doors, the careful corner of the whole three-year plan, with the two big bets named out loud. Two posts still to come, and each one changes the scale.
Post three, up next, goes past these two immune doors to the rest of the plan: every other cancer in it, counted this time for the whole world at once, not one country at a time.
And then post four, the finale, asks the wildest question of all, the one almost no one says out loud: whether a drug that rebuilds the immune system could break the ceiling on what a single company is allowed to become, an Nvidia of biotech.
We kept every number below its ceiling today. Starting next time, we take our hands off them.