Biotech & Longevity · Saturday, 24 October 2026
A patient dies in Bristol Myers Squibb's trial of a cell treatment for multiple sclerosis, the first death among 190 people given it for immune diseases
BMS said a patient in its early trial of zola-cel, a CAR-T treatment for multiple sclerosis, died of a lung infection 44 days after treatment. On the same day Europe's big cancer meeting opened in Madrid with Takeda, GSK and BMS showing drugs first made by Chinese companies, and India capped the mark-ups on 137 cancer drugs.
1 in 190
patients given zola-cel for immune diseases who have died
the MS patient died 44 days after the drip
42.4%
of patients in the MS trial had an immune over-reaction
five had brain-inflammation symptoms that cleared in about two days
60 of 60
patients on the second dose still off other MS drugs
nine of them for more than a year, BMS said
The lead story — what happened
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Bristol Myers Squibb (BMS), a big US drugmaker, said on Friday that a patient died in an early trial of zola-cel, its experimental cell treatment for multiple sclerosis.
[1] -
Multiple sclerosis (MS) is a disease in which the immune system attacks the coating around nerve fibres. That breaks the signals between the brain and the body.
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Zola-cel is a CAR-T treatment. A patient's own immune cells are collected, changed in a lab to hunt cells carrying a protein called CD19, and put back in one drip.
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The patient had a fast-relapsing form of MS. Later, they developed movement problems that steroids and an antibody drip did not fix.
[1] [2] -
Doctors then gave a high dose of cyclophosphamide, a strong chemotherapy drug. The patient developed septic pneumonia, a lung infection that set off a reaction through the whole body, and died the next day, 44 days after the treatment.
[1] [2] -
BMS says no other patient has died among the 190 people given zola-cel in its early trials for immune diseases.
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The MS trial, called Breakfree-2, treated 66 people: 30 with relapsing MS and 36 with forms of MS that worsen steadily.
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Its main goal was to measure safety. 42.4% of patients had cytokine release syndrome, an immune over-reaction, and five had brain-inflammation symptoms that cleared in about two days.
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BMS said all 60 patients given the second dose level were still off their other MS medicines at the last check, nine of them for more than a year.
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In September BMS paused its zola-cel studies to review safety. It did so after Novartis, a Swiss drugmaker, paused eight trials of rap-cel, its own cell treatment.
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BMS shares were about 2% lower in early trading on Friday.
[1]
1 of 190
1 death among 190 patients
Who is involved
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Bristol Myers Squibb
a big US drugmaker; it runs the zola-cel trials and disclosed the death
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Novartis
a Swiss drugmaker; it paused eight trials of rap-cel, a similar cell treatment, before BMS paused its own
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People with multiple sclerosis
66 of them took part in the Breakfree-2 trial; they had kept getting worse on a median of two earlier MS drugs
How it unfolded
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September BMS pauses zola-cel studies for a safety review, after Novartis paused eight rap-cel trials
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After the data cut a patient dies of septic pneumonia 44 days after the drip
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Fri 23 Oct BMS discloses the death and shows the trial results at an MS meeting in Toronto
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Fri 23 Oct BMS shares trade about 2% lower
[1]
Where this points
The next thing that decides zola-cel's future is what BMS's safety review finds and when it ends the pause on its studies that began in September.
Signals on this beat
The bar and the word are our reading of how hard each one is pushing, and the arrow is where it is heading.
Takeda's new stomach-cancer drug left 20.4% of patients with low red blood cells.
Takeda paid $1.2bn up front a year ago for two drugs from Innovent, a Chinese company. One of them showed a final-trial win on Friday.
Roche paid Zymeworks $55m for a drug backed so far only by lab and mouse data.
India capped the mark-up shops and hospitals add to 137 more cancer drugs, which it says cuts prices by up to 70%.
The rest of the day
19 more stories on this beat.
Each with its own sources. None of these is a link to the story above.
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02
India caps mark-ups on 137 cancer drugs
India's government will cap the mark-up that hospitals, distributors and chemists add to 137 more cancer drugs at 30%, from next month.
[3] It acted after India's supreme court called the mark-ups extortion.[3] The case began with Sarojam Radhakrishnan, a retired bank clerk in Kerala who could not afford her breast-cancer drugs; she died in 2022.[3] India's drug-price body found mark-ups on some cancer drugs averaging 170%, and more than 700% in the worst cases.[3] India's government says prices will fall by up to 70%.[3] Why it matters — Patients are expected to save 2,500 crore rupees (about 199 million pounds) a year in a country with about 1.56 million new cancer cases a year.
[3] The court has given India's government until 27 October to say why the cap covers only cancer drugs.[3] -
03
Takeda's stomach-cancer drug wins a final trial
Takeda, a Japanese drugmaker, showed final-trial results for arcotatug tavatecan at ESMO, Europe's biggest cancer meeting, in Madrid.
[4] It is an antibody-drug conjugate: an antibody that carries a cell-killing drug straight to cancer cells.[4] The trial had 464 people in China and Japan with advanced stomach cancer and at least two earlier treatments.[4] Patients on the drug lived a median 10.2 months, against 6.9 months on the usual drugs.[4] One patient died suddenly of an unknown cause, and Takeda is still looking into it.[4] Takeda's drug10.2 monthsUsual drugs6.9 monthsMedian time patients lived in the final trial of arcotatug tavatecan. Why it matters — Takeda plans to ask Japan's regulator for approval, and Innovent, the Chinese company that made the drug, has already applied in China.
[4] Innovent could earn more than $10bn from Takeda if this drug and a second one succeed.[4] -
04
Iza-bren slows a common breast cancer
BMS and SystImmune said iza-bren cut the risk of the cancer growing or death by 59% against chemotherapy, in a final trial of 383 patients.
[5] They had a kind of breast cancer fed by hormones, and had already had chemotherapy.[5] The cancer was held back for a median 8.2 months, against 4.0 months on chemotherapy.[5] The trial was run in China by Sichuan Biokin, SystImmune's parent company.[5] Iza-bren8.2 monthsChemotherapy4 monthsMedian time before the cancer grew, in a final trial in China. Why it matters — Nobody knows yet whether iza-bren helps people live longer, because the survival numbers are not mature.
[5] BMS and SystImmune develop the drug together under a licence deal. It has now shown a benefit in five final trials for five different uses.[5] -
05
BMS backs Pathos with $237m
Pathos, a New York company that uses AI to choose and steer drug trials, raised $237m in a round led by BMS.
[6] [8] The round values Pathos at about $3bn.[6] Pathos will pay Tempus, a health-data company, $55m over five years for records from hundreds of thousands of people with brain and nerve diseases.[6] [7] For three years, only BMS may use Pathos's AI for brain-disease drugs, starting with Alzheimer's.[6] [8] Why it matters — Pathos's chief executive says the aim is to raise the odds that a drug succeeds in its trials.
[7] Its own drugs include a late-stage cancer drug licensed from Alphamab Oncology, another drug company.[7] -
06
Roche pays $55m for a lab-stage lung-cancer drug
Roche, a Swiss drugmaker, will pay Zymeworks $55m up front for ZW209, a drug in its first trial in people.
[9] ZW209 grabs a cancer cell with one arm and an immune cell with two others, to switch the immune cell on harder.[9] It aims to beat Imdelltra, an Amgen drug approved in the US in 2024 for small-cell lung cancer.[9] Roche will pay $40m more when the second stage of testing starts, and up to $718m in later payments.[9] Why it matters — The only evidence so far comes from lab tests and from mice given human tumours.
[9] Small-cell lung cancer is fast and hard to treat, and Roche already sells Tecentriq for it.[9] -
07
Boehringer's lung-cancer drug holds up at lower chemo doses
Boehringer Ingelheim, a German drugmaker, showed early results for obrixtamig, a drug that links immune cells to small-cell lung cancer cells.
[12] The trial tests it together with topotecan, a chemotherapy that gave 84% of patients serious side effects in an earlier look.[12] Among 60 patients, those who got less than 80% of the planned chemo did at least as well: 72% had their tumours shrink, against 61% of those who got more.[12] Why it matters — The result eases a worry that patients who cannot take the full chemo dose do worse.
[12] Boehringer has two final trials running, and its drug and Zymeworks's both aim to beat Amgen's Imdelltra.[12] [9] -
08
GSK's ovarian-cancer drug keeps working longer
GSK, a British drugmaker, showed new early results for mo-rez, an antibody-drug conjugate, at ESMO.
[11] In 45 women with ovarian cancer that no longer responds to platinum chemotherapy, 62% had their tumours shrink.[11] The cancer was held back for a median 11.1 months, against the six to eight months GSK says these patients usually get.[11] But 71% had serious side effects, mostly low blood counts.[11] Why it matters — GSK already runs five final trials of mo-rez, and has changed their rules on preventing low blood counts.
[11] It licensed the drug from Hansoh, a Chinese company.[11] -
09
A pill for ovarian cancer shows survival data
Zentalis, a US biotech, showed results for azenosertib, a pill that stops cancer cells from pausing when their DNA is damaged, so the damage builds up until they die.
[10] In 48 women whose ovarian cancer carried a protein called Cyclin E1, 37.2% had their tumours shrink.[10] They lived a median 15.9 months.[10] Single-drug chemotherapy shrinks these tumours in only 4% to 12% of women, its medical chief said.[10] Why it matters — Side effects were common, and 43.1% of patients needed a lower dose.
[10] Two patients died of infections linked to low white blood cells, which led the FDA, the US drug regulator, to pause the drug briefly in 2024.[10] A bigger part of the trial reports in the first half of next year.[10] -
10
Roche's kidney injection cuts a damage marker by 43%
Roche gave the numbers behind a final-trial win it announced a month ago for sefaxersen, a monthly injection for IgA nephropathy.
[13] That is a kidney disease in which the immune system slowly damages the kidneys' filters.[13] After 37 weeks, protein leaking into urine, a sign of kidney damage, fell by 43.1% compared with a dummy injection.[13] Roche expects yearly sales of one to two billion Swiss francs at its peak.[13] Why it matters — The trial now continues for two years to measure kidney function itself.
[13] Novartis already sells Fabhalta, a twice-daily pill that blocks the same protein, factor B.[13] -
11
China approves batoclimab for muscle weakness
China's drug regulator approved batoclimab, a Harbour BioMed injection, for generalised myasthenia gravis.
[14] That is a rare disease in which the immune system's antibodies block the signals from nerves to muscles, causing weakness.[14] In the final trial, 25.4% of patients reached minimal or no symptoms at some visit, against 4.7% on a dummy injection.[14] The most common side effect was swelling in the arms or legs, in 38.8% of patients.[14] Why it matters — Harbour BioMed says it is the first drug of its kind approved by China's regulator after finishing its whole clinical testing.
[14] The company says the disease badly affects whether patients can work.[14] -
12
Star Therapeutics raises $200m to start again
Star Therapeutics, a US biotech, raised $200m from investors on Friday.
[15] It earlier built two companies around single drugs.[15] Vega was sold to Incyte in a deal worth up to $2bn, and Electra raised $350m by selling shares to the public in September.[15] Star will now go quiet and work on early drugs for blood and immune diseases.[15] Why it matters — Investors are paying for the team's record before it has named a drug to show.
[15] One investor, Janus Henderson, said it does not often back companies at such an early stage.[15] -
13
Drugmakers join a US court fight over discounts
A US judge let PhRMA, the drugmakers' trade group, and AbbVie, BMS and Boehringer Ingelheim join a lawsuit over a US government trial scheme.
[19] The scheme, due to start on 1 January, lets drugmakers pay rebates later instead of giving discounts up front.[19] It covers medicines that hospitals buy through 340B, a US discount programme.[19] Hospitals sued this month to block the scheme.[19] Why it matters — The judge had earlier refused to let the drugmakers in, so they can now argue for the scheme before it starts.
[19] Which side wins decides when hospitals get the money off.[19] -
14
Schizophrenia trial fills its places
Newron, a drug company near Milan in Italy, finished signing up patients for its final trial of evenamide in schizophrenia that has not responded to other drugs.
[16] Of 996 people screened, 618 qualified and were given one of two doses or a dummy pill, on top of their usual drugs.[16] Evenamide is meant to calm the brain chemical glutamate when too much of it is released.[16] Why it matters — First results after 12 weeks are due in early 2027, and the trial runs for a year.
[16] -
15
A Duchenne drug is filed in South Korea
Nxera Pharma, a Japanese drug company, has asked South Korea's drug regulator to approve vamorolone for Duchenne muscular dystrophy.
[17] That is an inherited disease in which the muscles waste away.[17] Vamorolone is a new kind of steroid drug from Santhera, a Swiss company, which licensed it to Nxera in January.[17] Nxera aims for approval in 2027 and sales in 2028.[17] Why it matters — The filing uses a fast review route South Korea granted in June for serious and rare diseases.
[17] -
16
Summit hires an AI to read tumour slides
Summit Therapeutics agreed to use Lunit's AI to study tumour tissue slides from trials of ivonescimab, its cancer drug.
[18] Ivonescimab blocks two things at once: a brake on immune cells and a signal that feeds blood vessels to tumours.[18] The AI reads ordinary stained slides to map the immune cells around a tumour.[18] Why it matters — The companies hope the slides can show which patients are most likely to respond, so trials can pick them.
[18] -
17
A map of a hard bowel cancer points to old drugs
Researchers in Ireland, London and Barcelona studied data from about 2,000 bowel tumours.
[20] They focused on the most common kind, which responds poorly to newer drugs.[20] They built an AI tool to combine genes, proteins and other data on each tumour.[20] It found weak points, and in lab models trametinib, a drug already sold for melanoma, slowed tumours when combined with other drugs.[20] The paper is in the journal Cancer Cell.[20] Why it matters — The findings are only in lab models so far, and the team says the next step is finding who would respond.
[20] Re-using approved drugs could reach patients faster than a new one.[20] -
18
Congo starts a vaccine trial for its Ebola strain
Congo began the first vaccine trial of its current Ebola outbreak on Friday, in Bunia, the main city of the province where the outbreak is centred.
[21] [22] The first volunteers got Ervebo, a vaccine approved against the Zaire kind of Ebola.[21] This outbreak is caused by the Bundibugyo kind, which has no approved vaccine or treatment.[21] [22] The trial, called Tumaini, vaccinates the people most at risk around each patient.[21] It will later add two vaccines made for Bundibugyo, one from the University of Oxford and one from Moderna.[21] [22] Why it matters — Congo has counted more than 9,700 cases and more than 4,600 deaths since May, and the outbreak has reached Uganda, Kenya and Nigeria.
[21] The WHO's emergencies director said success would be the first clear proof that any vaccine protects against Bundibugyo.[22] -
19
Kenya records a second Ebola death
Kenya's health ministry said on Friday that a 65-year-old woman had died of Ebola, the country's second death.
[23] [24] She was a close relative of the first patient, a man who arrived from Congo and died on 5 October.[23] [24] She fell ill while she was already in quarantine.[23] Seven other patients are being treated, among them three health workers and a hospital cleaner.[23] Kenya's ministry says all the cases are in one group, with no sign of spread in the wider community.[23] Why it matters — Nigeria's health minister said the virus in Nigeria's first case, found this week, looks closely related to the one in Kenya's first patient.
[21] [24] The US has warned its citizens against travelling to Kenya.[23] -
20
Pakistan runs short of one insulin
An insulin used by people with type 1 diabetes is in short supply in Pakistan, a health official told the National Assembly, its parliament, on Friday.
[25] Nelson Azeem, a parliamentary secretary for health, said its German maker halted supplies while it upgrades its products.[25] Deliveries fell from 3,500 kits to 1,000 and could fall further during a year-long upgrade.[25] He said other insulins that work the same way are available, and that the shortage reaches Asia, Australia and Europe.[25] Why it matters — Syeda Amna Batool, a member of the assembly, said the other insulins cost at least 20% more and many patients cannot easily see a doctor to switch.
[25] Officials had said on Tuesday that only one brand was missing.[25]
Why a new drug's first doses are raised one small step at a time
A first trial gives a few people a small dose, then a little more, and stops where serious harm begins, all before any big test.
The twist
A drug's first trials mostly ask how much of it a body can take. The answer sets the dose that every later patient gets.
The picture
How it works
- A few people get a low dose first
- Doctors watch them for damage
- If they are safe, the next group gets a little more
- The climb stops at the most a body can take
- That dose goes into the big trial
- Harms too rare for a small group show up later
The same force, elsewhere today
Where this chain is also running, in today's other stories.
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GSK's ovarian-cancer drug
GSK tried several doses of mo-rez in its early trial and picked 5.8 mg per kilo for its five final trials.
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Boehringer's lung-cancer drug
The early trial was built to test how well patients bear obrixtamig with chemo, and it checked how they did on less chemo.
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Roche's deal with Zymeworks
ZW209 now goes into the first step, and Roche pays $40m more only when the next, larger step starts.
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Zentalis's ovarian-cancer pill
Even after the dose was chosen, 43.1% of women needed it lowered, so the climb's answer still gets adjusted.
Where you've seen this
Testing a bridge
engineers add weight in steps and stop at the first sign of strain
Lifting weights
people add a little each week and stop when their form breaks
Cooking with chilli
a cook adds a pinch at a time, because too much cannot be taken out
The catch
A first trial treats tens of people, so a harm that strikes one person in a few hundred can stay hidden until the drug reaches more of them.
And the whole of it
The people in a first trial take the biggest risk for the least sure benefit. Every patient after them gets the dose they helped find, and neither group ever meets the other.
What is really going on
BMS disclosed one death among the 190 people given zola-cel for immune diseases, a month after it had already paused those trials to review safety.
Why it works on us — A drop of 59% in risk sounds much bigger than the same result said as 8.2 months against 4.0 months before the cancer grew.
Who gains
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Takeda
— Its $1.2bn bet on Innovent now has final-trial survival data, which it plans to use to seek approval in Japan.
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Innovent, the Chinese maker of Takeda's drug
— It could earn more than $10bn in further payments if this drug and a second one succeed.
[4] -
Cancer patients in India
— A 30% cap on mark-ups for 137 more drugs is expected to save them 2,500 crore rupees a year.
[3] -
Pathos and its earlier investors
— BMS led a $237m round that values the company at about $3bn.
[6] -
Zymeworks
— It gets $55m up front and $40m more when ZW209 reaches the next stage, with Roche paying for the first trial.
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Who pays
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Volunteers in first trials
— One patient with MS died 44 days after zola-cel, in a trial whose main goal was to measure safety.
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Hospitals, distributors and chemists in India
— Their mark-up on 137 more cancer drugs is capped at 30%, against an average of 170% found on some drugs.
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BMS shareholders
— The shares fell about 2% in early trading after the death was disclosed.
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Zentalis staff
— The company cut 40% of its workers last year to keep paying for azenosertib's trials.
[10]
What nobody knows yet
Open questions from across today’s stories — ours included.
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01
What caused the zola-cel patient's death.
The patient got high-dose cyclophosphamide, a strong chemotherapy, the day before dying, and BMS says the CAR-T cells had grown normally. No cause has been given.
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02
When the pause on zola-cel trials ends.
BMS began a voluntary pause in September to review safety data, and gave no end date on Friday.
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03
Whether iza-bren helps patients live longer.
The survival numbers were not mature when the trial was analysed, so only the time before the cancer grew is known.
[5] -
04
Why one patient on Takeda's stomach-cancer drug died suddenly.
Takeda says it is still collecting data on the cause.
[4] -
05
Whether India's price cap will reach patients' bills.
A campaigner warned that hospitals may raise charges on other items to make up the lost mark-up.
[3] India's supreme court has asked why the cap covers only cancer drugs, and wants an answer by 27 October.[3] -
06
Whether mo-rez's side effects fall in its final trials.
71% of patients had serious side effects in the early trial, and GSK expects fewer now that the rules on preventing low blood counts are stricter, but no final-trial data exist yet.
[11] -
07
Whether sefaxersen protects the kidneys, not only the urine test.
The 43.1% fall is in protein leaking into urine; the trial runs two years to measure kidney function.
[13] -
08
Whether ZW209 works in people at all.
Roche paid $55m on evidence from lab tests and mice given human tumours; the first trial in people is only starting.
[9]
From next month, 137 cancer drugs in India will cost less, because the mark-up that hospitals and chemists can add is capped at 30%. India's government says prices will fall by up to 70%.
Also true today
- In a final trial of Takeda's new drug, people with advanced stomach cancer who had already had at least two other treatments lived a median 10.2 months, against 6.9 months on the usual drugs.
- China approved batoclimab for myasthenia gravis, a disease that weakens muscles. In its final trial, a quarter of patients reached minimal or no symptoms at some visit, against fewer than one in twenty on a dummy injection.
- Roche's monthly kidney injection, sefaxersen, cut the protein leaking into patients' urine by 43.1% compared with a dummy injection.
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