fbpx
Connect with us

Kaiser Health News

‘Behind the Times’: Washington Tries to Catch Up With AI’s Use in Health Care

Published

on

Darius Tahir
Tue, 13 Feb 2024 10:00:00 +0000

Lawmakers and regulators in Washington are starting to puzzle over how to regulate artificial intelligence in care — and the AI industry thinks there's a good chance they'll mess it up.

“It's an incredibly daunting problem,” said Bob Wachter, the chair of the Department of Medicine at the of California-San Francisco. “There's a risk we come in with guns blazing and overregulate.”

Already, AI's impact on health care is widespread. The Food and Drug Administration has approved some 692 AI products. Algorithms are helping to schedule patients, determine staffing levels in emergency rooms, and even transcribe and summarize clinical visits to save physicians' time. They're starting to help radiologists read MRIs and X-rays. Wachter said he sometimes informally consults a version of GPT-4, a large language model from the company OpenAI, for complex cases.

Advertisement

The scope of AI's impact — and the potential for future changes — means government is already playing catch-up.

“Policymakers are terribly behind the times,” Michael Yang, senior managing partner at OMERS Ventures, a venture capital firm, said in an email. Yang's peers have made vast investments in the sector. Rock Health, a venture capital firm, says financiers have put nearly $28 into digital health firms specializing in artificial intelligence.

One issue regulators are grappling with, Wachter said, is that, unlike drugs, which will have the same chemistry five years from now as they do , AI changes over time. But governance is forming, with the White House and multiple health-focused agencies developing rules to ensure transparency and privacy. Congress is also flashing interest. The Senate Finance Committee held a hearing Feb. 8 on AI in health care.

Along with regulation and legislation increased lobbying. CNBC counted a 185% surge in the number of disclosing AI lobbying activities in 2023. The trade group TechNet has launched a $25 million initiative, TV ad buys, to educate viewers on the benefits of artificial intelligence.

Advertisement

“It is very hard to know how to smartly regulate AI since we are so early in the invention phase of the technology,” Bob Kocher, a partner with venture capital firm Venrock who previously served in the Obama administration, said in an email.

Kocher has spoken to senators about AI regulation. He emphasizes some of the difficulties the health care system will face in adopting the products. Doctors — facing malpractice risks — might be leery of using technology they don't understand to make clinical decisions.

An analysis of Census data from January by the consultancy Capital Economics found 6.1% of health care businesses were planning to use AI in the next six months, roughly in the middle of the 14 sectors surveyed.

Like any medical product, AI can pose risks to patients, sometimes in a novel way. One example: They may make things up.

Advertisement

Wachter recalled a colleague, as a test, assigning OpenAI's GPT-3 to write a prior authorization letter to an insurer for a purposefully “wacky” prescription: a blood thinner to treat a patient's insomnia.

But the AI “wrote a beautiful note,” he said. The system so convincingly cited “recent literature” that Wachter's colleague briefly wondered whether she'd missed a new line of research. It turned out the chatbot had made it up.

There's a risk of AI magnifying bias already present in the health care system. Historically, people of color have received less care than white patients. Studies show, for example, that Black patients with fractures are less likely to get pain medication than white ones. This bias might get set in stone when artificial intelligence is trained on that data and subsequently acts.

Research into AI deployed by large insurers has confirmed that has happened. But the problem is more widespread. Wachter said UCSF tested a product to predict no-shows for clinical appointments. Patients who are deemed unlikely to show up for a visit are more likely to be double-booked.

Advertisement

The test showed that people of color were more likely not to show. Whether or not the finding was accurate, “the ethical response is to ask, why is that, and is there something you can do,” Wachter said.

Hype aside, those risks will likely continue to grab attention over time. AI experts and FDA officials have emphasized the need for transparent algorithms, monitored over the long term by human beings — regulators and outside researchers. AI products adapt and change as new data is incorporated. And scientists will develop new products.

Policymakers will need to invest in new systems to track AI over time, said University of Chicago Provost Katherine Baicker, who testified at the Finance Committee hearing. “The biggest advance is something we haven't thought of yet,” she said in an interview.

——————————
By: Darius Tahir
Title: ‘Behind the Times': Washington Tries to Catch Up With AI's Use in Health Care
Sourced From: kffhealthnews.org//article/artificial-intelligence-ai-algorithms-regulation-investment-health/
Published Date: Tue, 13 Feb 2024 10:00:00 +0000

Advertisement

Kaiser Health News

Forget Ringing the Button for the Nurse. Patients Now Stay Connected by Wearing One.

Published

on

Phil Galewitz, KFF
Wed, 08 May 2024 09:00:00 +0000

HOUSTON — Patients admitted to Houston Methodist Hospital get a monitoring device about the size of a half-dollar affixed to their chest — and an unwitting role in the expanding use of artificial intelligence in health care.

The slender, battery-powered gadget, called a BioButton, vital signs heart and breathing rates, then wirelessly sends the readings to nurses sitting in a 24-hour control room elsewhere in the hospital or in their homes. The device's software uses AI to analyze the voluminous data and detect signs a patient's condition is deteriorating.

Hospital officials say the BioButton has improved care and reduced the workload of bedside nurses since its rollout last year.

Advertisement

“Because we catch things earlier, patients are doing better, as we don't have to wait for the bedside team to notice if something is going wrong,” said Sarah Pletcher, system vice president at Houston Methodist.

But some nurses fear the technology could wind up replacing them rather than supporting them — and harming patients. Houston Methodist, one of dozens of U.S. hospitals to employ the device, is the first to use the BioButton to monitor all patients except those in intensive care, Pletcher said.

“The hype around a lot of these devices is they provide care at scale for less labor costs,” said Michelle Mahon, a registered nurse and an assistant director of National Nurses United, the profession's largest U.S. union. “This is a trend that we find disturbing,” she said.

The rollout of BioButton is among the latest examples of hospitals deploying technology to improve efficiency and address a decades-old nursing shortage. But that transition has raised its own concerns, including about the device's use of AI; polls show the public is wary of health providers relying on it for patient care.

Advertisement

In December 2022 the FDA cleared the BioButton for use in adult patients who are not in critical care. It is one of many AI tools now used by hospitals for tasks like reading diagnostic imaging results.

In 2023, directed the Department of Health and Human Services to develop a plan to regulate AI in hospitals, including by collecting reports of patients harmed by its use.

The leader of BioIntelliSense, which developed the BioButton, said its device is a huge advance compared with nurses walking into a room every few hours to measure vital signs. “With AI, you now move from ‘I wonder why this patient crashed' to ‘I can see this crash coming before it happens and intervene appropriately,'” said James Mault, CEO of the Golden, Colorado-based company.

The BioButton stays on the skin with an adhesive, is waterproof, and has up to a 30-day battery . The company says the device — which allows providers to quickly notice deteriorating health by recording more than 1,000 measurements a day per patient — has been used on more than 80,000 hospital patients nationwide in the past year.

Advertisement

Hospitals pay BioIntelliSense an annual subscription fee for the devices and software.

Houston Methodist officials would not reveal how much the hospital pays for the technology, though Pletcher said it equates to less than a cup of coffee a day per patient.

For a hospital system that treats thousands of patients at a time — Houston Methodist has 2,653 non-ICU beds at its eight Houston-area hospitals — such an investment could still translate to millions of dollars a year.

Hospital officials say they have not made any changes in nurse staffing and have no plans to because of implementing the BioButton.

Advertisement

Inside the hospital's control center for virtual monitoring on a recent morning, about 15 nurses and technicians dressed in scrubs sat in front of large monitors showing the health status of hundreds of patients they were assigned to monitor.

A red checkmark next to a patient's name signaled the AI software had found readings trending outside normal. Staff members could click into a patient's medical record, showing patients' vital signs over time and other medical history. These virtual nurses, if you will, could contact nurses on the floor by phone or email, or even dial directly into the patient's room via call.

Nutanben Gandhi, a technician who was watching 446 patients on her monitor that morning, said that when she gets an alert, she looks at the patient's health record to see if the anomaly can be easily explained by something in the patient's condition or if she needs to contact nurses on the patient's floor.

Oftentimes an alert can be easily dismissed. But identifying signs of deteriorating health can be tough, said Steve Klahn, Houston Methodist's clinical director of virtual medicine.

Advertisement

“We are looking for a needle in a haystack,” he said.

Donald Eustes, 65, was admitted to Houston Methodist in March for prostate cancer treatment and has since been treated for a stroke. He is happy to wear the BioButton.

“You never know what can happen here, and having an extra set of eyes looking at you is a good thing,” he said from his hospital bed. After being told the device uses AI, the Montgomery, , man said he has no problem with its helping his clinical team. “This sounds like a good use of artificial intelligence.”

Patients and nurses alike benefit from remote monitoring like the BioButton, said Pletcher of Houston Methodist.

Advertisement

The hospital has placed small cameras and microphones inside all patient rooms enabling nurses outside to communicate with patients and perform tasks such as helping with patient admissions and discharge instructions. Patients can include family members on the remote calls with nurses or a doctor, she said.

Virtual technology frees up on-duty nurses to provide more hands-on help, such as starting an intravenous line, Pletcher said. With the BioButton, nurses can wait to take routine vital signs every eight hours instead of every four, she said.

Pletcher said the device reduces nurses' stress in monitoring patients and allows some to work more flexible hours because virtual care can be done from home rather than coming to the hospital. Ultimately it helps retain nurses, not them away, she said.

Sheeba Roy, a nurse at Houston Methodist, said some members of the nursing staff were nervous about relying on the device and not checking patients' vital signs as often themselves. But testing has shown the device provides accurate information.

Advertisement

“After we implemented it, the staff loves it,” Roy said.

Serena Bumpus, chief executive officer of the Texas Nurses Association, said her concern with any technology is that it can be more burdensome on nurses and take away time with patients.

“We have to be hypervigilant in ensuring that we are not leaning on this to replace the ability of nurses to critically think and assess patients and validate what this device is telling us is true,” Bumpus said.

Houston Methodist this year plans to send the BioButton home with patients so the hospital can better track their progress in the weeks after discharge, measuring the quality of their sleep and checking their gait.

Advertisement

“We are not going to need less nurses in health care, but we have limited resources and we have to use those as thoughtfully as we can,” Pletcher said. “Looking at projected demand and seeing the supply we have coming, we will not have enough to meet demand, so anything we can do to give time back to nurses is a good thing.”

——————————
By: Phil Galewitz, KFF Health News
Title: Forget Ringing the Button for the Nurse. Patients Now Stay Connected by Wearing One.
Sourced From: kffhealthnews.org/news/article/hospital-artificial-intelligence-patient-monitoring-biobutton-houston/
Published Date: Wed, 08 May 2024 09:00:00 +0000

Did you miss our previous article…
https://www.biloxinewsevents.com/they-were-shot-at-the-super-bowl-parade-and-might-have-bullets-in-their-bodies-forever/

Advertisement
Continue Reading

Kaiser Health News

They Were Shot at the Super Bowl Parade — And Might Have Bullets in Their Bodies Forever

Published

on

Bram Sable-Smith and Peggy Lowe, KCUR
Wed, 08 May 2024 09:00:00 +0000

James Lemons, 39, wants the bullet removed from his thigh so he can go back to work.

Sarai Holguin, a 71-year-old woman originally from Mexico, has accepted the bullet lodged near her knee as her “compa” — a close friend.


Advertisement

The Injured


They Were Injured at the Super Bowl Parade. A Month Later, They Feel Forgotten.

In the first of our series “The Injured,” a Kansas remembers Valentine's Day as the beginning of panic attacks, -altering trauma, and waking to nightmares of gunfire. Thrown into the by the shootings, they wonder how they will recover.

Read More

Mireya Nelson, 15, was hit by a bullet that went through her jaw and broke her shoulder, where fragments remain. She'll live with them for now, while doctors monitor lead levels in her blood for at least two years.

Advertisement

Nearly three months after the Kansas City Chiefs Super Bowl parade shooting left at least 24 people injured, recovery from those wounds is intensely personal and includes a surprising gray area in medicine: whether the bullets should be removed.

Medical protocol offers no clear answer. A 2016 survey of surgeons found that only about 15% of respondents worked at medical facilities that had policies on bullet removal. Doctors in the U.S. often leave bullets buried deep in a person's body, at least at first, so as not to cause further trauma.

But as gun violence has emerged as a public health epidemic, some researchers wonder if that practice is best. Some of the wounded, like James Lemons, are left in a precarious place.

“If there's a way to get it out, and it's safely taken out, get it out of the person,” Lemons said. “Make that person feel more secure about themselves. And you're not walking around with that memory in you.”

Advertisement

Lemons, Holguin, and Nelson are coping in very different ways.

Pain Became a Problem

Three days after the Chiefs won the Super Bowl, Lemons drove the 37 miles from Harrisonville, Missouri, to downtown Kansas City to celebrate the victory. The warehouse worker was carrying his 5-year-old daughter, Kensley, on his shoulders when he felt a bullet enter the back of his right thigh.

Gunfire erupted in the area packed with revelers, prosecutors later said, after a “verbal confrontation” between two groups. Detectives found “multiple 9mm and .40 caliber spent shell casings” at the scene. Lemons said he understood immediately what was happening.

Advertisement

“I know my city. We're not shooting off fireworks,” he said.

Lemons shielded Kensley's face as they fell to the ground so she wouldn't hit the concrete. His first thought was getting his family — also including his wife, Brandie; 17-year-old daughter, Kallie; and 10-year-old son, Jaxson — to safety.

“I'm hit. But don't worry about it,” Lemons recalled telling Brandie. “We gotta go.”

He carried Kensley on his shoulders as the family walked a mile to their car. His leg bled through his pants at first then stopped, he said. It burned with pain. Brandie insisted on driving him to the hospital but traffic was at a standstill so she put on her hazard lights and drove on the wrong side of the road.

Advertisement

“She's like: ‘I'm getting you to a hospital. I'm tired of people being in my way,'” Lemons recalled. “I've never seen my wife like that. I'm looking at her like, ‘That's kinda sexy.'”

Lemons clapped and smiled at his wife, he said, to which she replied, “What are you smiling for? You just got shot.” He stayed in quiet admiration until they were stopped by a sheriff, who summoned an ambulance, Lemons said.

He was taken to the emergency room at Health, which admitted 12 patients from the rally, including eight with gunshot wounds. Imaging showed the bullet barely missed an artery, Lemons said. Doctors cleansed the wound, put his leg in a brace, and told him to back in a week. The bullet was still in his leg.

“I was a little baffled by it, but I was like, ‘OK, whatever, I'll get out of here,'” Lemons recalled.

Advertisement

When he returned, doctors removed the brace but explained they often leave bullets and fragments in the body — unless they grow too painful.

“I get it, but I don't like that,” Lemons said. “Why wouldn't you take it out if you could?”

University Health spokesperson Leslie Carto said the hospital can't comment on individual patient care because of federal privacy laws.

Surgeons typically do remove bullets when they encounter them during surgery or they are in dangerous locations, like in the spinal canal or risking damage to an organ, said Brendan Campbell, a pediatric surgeon at Connecticut Children's.

Advertisement

Campbell also chairs the Injury Prevention and Control Committee of the American College of Surgeons' Committee on Trauma, which works on firearm injury prevention.

LJ Punch, a trauma surgeon by and the founder of the Bullet Related Injury Clinic in St. Louis, said the origins of trauma care also help explain why bullets are so often left.

“Trauma care is war medicine,” Punch said. “It is set to be ready at any moment and any time, every day, to save a life. It is not equipped to take care of the healing that needs to come after.”

In the survey of surgeons, the most common reasons given for removing a bullet were pain, a palpable bullet lodged near the skin, or an infection. Far less common were lead poisoning and mental health concerns such as post-traumatic stress disorder and anxiety.

Advertisement

What patients wanted also affected their decisions, the surgeons said.

Lemons wanted the bullet out. The pain it caused in his leg radiated up from his thigh, making it difficult to move for more than an hour or two. Working his warehouse job was impossible.

“I gotta lift 100 pounds every night,” Lemons recalled telling his doctors. “I gotta lift my child. I can't work like this.”

He has lost his income and his health insurance. Another stroke of bad luck: The family's landlord sold their rental home soon after the parade, and they had to find a new place to live. This house is smaller, but it was important to keep the kids in the same school district with their friends, Lemons said in an interview in Kensley's pink bedroom, the quietest spot to talk.

Advertisement

They've borrowed money and raised $6,500 on GoFundMe to help with the deposit and car repairs, but the parade shooting has left the family in a deep financial hole.

Without insurance, Lemons worried he couldn't afford to have the bullet removed. Then he learned his surgery would be paid for by donations. He set up an appointment at a hospital north of the city, where a surgeon took measurements on his X-ray and explained the procedure.

“I need you to be involved as much as I'm going to be involved,” he remembered being told, “because — guess what — this ain't my leg.”

The surgery is scheduled for this month.

Advertisement

‘We Became Friends'

Sarai Holguin isn't much of a Chiefs fan, but she agreed to go to the rally at Union Station to show her friend the best spot to see the players on stage. It was an unseasonably warm day, and they were standing near an entrance where lots of police were stationed. had babies in strollers, kids were playing football, and she felt safe.

A little before 2 p.m., Holguin heard what she thought were fireworks. People started running away from the stage. She turned to leave, trying to find her friend, but felt dizzy. She didn't know she'd been shot. Three people quickly came to her aid and helped her to the ground, and a stranger took off his shirt and made a tourniquet to put on her left leg.

Holguin, a native of Puebla, Mexico, who became a U.S. citizen in 2018, had never seen so much chaos, so many paramedics working under such pressure. They were “anonymous heroes,” she said.

Advertisement

She saw them working on Lisa Lopez-Galvan, a well-known DJ and 43-year-old mother of two. Lopez-Galvan died at the scene, and was the sole fatality at the parade. Holguin was rushed to University Health, about five minutes from Union Station.

There doctors performed surgery, leaving the bullet in her leg. Holguin awoke to more chaos. She had lost her purse, along with her cellphone, so she couldn't call her husband, Cesar. She had been admitted to the hospital under an alias — a common practice at medical centers to begin immediate care.

Her husband and daughter didn't find her until about 10 p.m. — roughly eight hours after she'd been shot.

“It has been a huge trauma for me,” Holguin said through an interpreter. “I was injured and at the hospital without doing anything wrong. [The rally] was a moment to play, to relax, to be together.”

Advertisement

Holguin was hospitalized for a week, and two more outpatient surgeries quickly followed, mostly to remove dead tissue around the wound. She wore a wound VAC, or vacuum-assisted closure device, for several weeks and had medical appointments every other day.

Campbell, the trauma surgeon, said wound VACs are common when bullets damage tissue that isn't easily reconstructed in surgery.

“It's not just the physical injuries,” Campbell said. “Many times it's the emotional, psychological injuries, which many of these patients take away as well.”

The bullet remains near Holguin's knee.

Advertisement

“I'm going to have it for the rest of my life,” she said, saying she and the bullet became “compas,” close friends.

“We became friends so that she doesn't do any bad to me anymore,” Holguin said with a smile.

Punch, of the Bullet Related Injury Clinic in St. Louis, said some people like Holguin are able to find a way to psychically live with bullets that remain.

“If you're able to make a story around what that means for that bullet to be in your body, that gives you power; that gives you agency and choice,” Punch said.

Advertisement

Holguin's life changed in an instant: She's using a walker to get around. Her foot, she said, acts “like it had a stroke” — it dangles, and it's difficult to move her toes.

The most frustrating consequence is that she cannot travel to see her 102-year-old father, still in Mexico. She has a live camera feed on her phone to see him, but that doesn't offer much comfort, she said, and thinking about him brings tears.

She was told at the hospital that her medical bills would be taken care of, but then lots of them came in the mail. She tried to get victim assistance from the state of Missouri, but all the forms she had were in English, which made them difficult to comprehend. Renting the wound VAC alone cost $800 a month.

Finally she heard that the Mexican Consulate in Kansas City could help, and the consul pointed her to the Jackson County Prosecutor's Office, with which she registered as an official victim. Now all of her bills are being paid, she said.

Advertisement

Holguin isn't going to seek mental health treatment, as she believes one must learn to live with a given situation or it will become a burden.

“I have processed this new chapter in my life,” Holguin said. “I have never given up and I will move on with God's help.”

‘I Saw Blood on My Hands'

Mireya Nelson was late to the parade. Her mother, Erika, told her she should leave early, given traffic and the million people expected to crowd into downtown Kansas City, but she and her teenage friends ignored that advice. The Nelsons live in Belton, Missouri, about a half hour south of the city.

Advertisement

Mireya wanted to hold the Super Bowl trophy. When she and her three friends arrived, the parade that had moved through downtown was over and the rally at Union Station had begun. They were stuck in the large crowd and quickly grew bored, Mireya said.

Getting ready to leave, Mireya and one of her friends were trying to call the driver of their group, but they couldn't get cell service in the large crowd.

Amid the chaos of people and noise, Mireya suddenly fell.

“I saw blood on my hands. So then I knew I got shot. Yeah, and I just crawled to a tree,” Mireya said. “I actually didn't know where I got shot at, at first. I just saw blood on my hands.”

Advertisement

The bullet grazed Mireya's chin, shot through her jaw, broke her shoulder, and left through her arm. Bullet fragments remain in her shoulder. Doctors decided to leave them because Mireya had already suffered so much damage.

Mireya's mother supports that , for now, noting they were just “fragments.”

“I think if it's not going to harm her the rest of her life,” Erika said, “I don't want her to keep going back in the hospital and getting surgery. That's more trauma to her and more recovery time, more physical therapy and stuff like that.”

Bullet fragments, particularly ones only skin-deep, often push their way out like splinters, according to Punch, although patients aren't always told about that. Moreover, Punch said, injuries caused by bullets extend beyond those with damaged tissue to the people around them, like Erika. He called for a holistic approach to recover from all the trauma.

Advertisement

“When people stay in their trauma, that trauma can change them for a lifetime,” Punch said.

Mireya will be tested for lead levels in her blood for at least the next two years. Her levels are fine now, doctors told the family, but if they get worse she will need surgery to remove the fragments, her mother said.

Campbell, the pediatric surgeon, said lead is particularly concerning for young children, whose developing brains make them especially vulnerable to its harmful effects. Even a tiny amount of lead — 3.5 micrograms per deciliter — is enough to report to state health , according to the Centers for Disease Control and Prevention.

Mireya talks about cute teenage boys' being “fine” but also still wears Cookie Monster pajamas. She appears confused by the shootings, by all the attention at home, at school, from reporters. Asked how she feels about the fragments in her arm, she said, “I don't really care for them.”

Advertisement

Mireya was on antibiotics for 10 days after her hospital stay because doctors feared there was bacteria in the wound. She has had physical therapy, but it's painful to do the exercises. She has a scar on her chin. “A dent,” she said, that's “bumpy.”

“They said she was lucky because if she wouldn't have turned her head in a certain way, she could be gone,” Erika said.

Mireya faces a psychiatric evaluation and therapy appointments, though she doesn't like to talk about her feelings.

So far, Erika's insurance is paying the medical bills, though she hopes to get some help from the United Way's #KCStrong fund, which raised nearly $1.9 million, or a faith-based organization called Unite KC.

Advertisement

Erika doesn't want a handout. She has a job in and just got a promotion.

The bullet has changed the family's life in big ways. It is part of their conversation now. They talk about how they wish they knew what kind of ammunition it was, or what it looked like.

“Like, I wanted to keep the bullet that went through my arm,” Mireya said. “I want to know what kind of bullet it was.” That brought a sigh from her mom, who said her daughter had watched too many episodes of “Forensic Files.”

Erika beats herself up about the wound, because she couldn't protect her daughter at the parade.

Advertisement

“It hits me hard because I feel bad because she begged me to get off work and I didn't go there because when you have a new position, you can't just take off work,” Erika said. “Because I would have took the bullet. Because I would do anything. It's mom mode.”

——————————
By: Bram Sable-Smith and Peggy Lowe, KCUR
Title: They Were Shot at the Super Bowl Parade — And Might Have Bullets in Their Bodies Forever
Sourced From: kffhealthnews.org/news/article/the-injured-super-bowl-parade-kansas-city-bullets-still-bodies/
Published Date: Wed, 08 May 2024 09:00:00 +0000

Did you miss our previous article…
https://www.biloxinewsevents.com/amgen-plows-ahead-with-costly-highly-toxic-cancer-dosing-despite-fda-challenge/

Advertisement
Continue Reading

Kaiser Health News

Amgen Plows Ahead With Costly, Highly Toxic Cancer Dosing Despite FDA Challenge

Published

on

Arthur Allen
Tue, 07 May 2024 09:00:00 +0000

When doctors began using the drug sotorasib in 2021 with high expectations for its innovative approach to attacking lung cancer, retired medical technician Don Crosslin was an early beneficiary. Crosslin started the drug that July. His tumors shrank, then stabilized.

But while the drug has helped keep him alive, its side effects have gradually narrowed the confines of his , said Crosslin, 76, who lives in Ocala, Florida: “My appetite has been minimal. I'm very weak. I walk my dogs and get around a bit, but I haven't been able to golf since last July.”

He wonders whether he'd do better on a lower dose, “but I do what my oncologist tells me to do,” Crosslin said. Every day, he takes eight of the 120-milligram pills, sold under Amgen's brand name Lumakras.

Advertisement

Crosslin's concern lies at the heart of an FDA effort to make cancer less toxic and more effective. Cancer drug trials are structured to promote high doses, which then become routine patient care. In the face of evidence that thousands of patients become so ill that they skip doses or stop taking the drugs — thereby risking resurgence of their cancers — the FDA has begun requiring companies to pinpoint the right dosage before they reach patients.

The initiative, Project Optimus, launched in 2021 just as Amgen was seeking to market sotorasib. At the time, the FDA's leading cancer drug regulator, Richard Pazdur, co-authored an editorial in the New England Journal of Medicine that said Amgen's trials of the $20,000-a-month drug were “hampered by a lack of robust dose exploration.”

The FDA conditionally approved sotorasib but required Amgen to conduct a study comparing the labeled dosage of 960 mg with a dosage of 240 mg. The trial, published in November, showed that the 960-mg dose may have given patients a month more of life, on average, but caused more severe side effects than the lower dose.

Amgen is keeping the 960-mg dosage as it conducts further tests to get final approval for the drug, spokesperson Elissa Snook said, adding that the dose showed superiority in one study. Whether medically justified or not, the heavier dosage allows the company to protect 75% of its revenue from the drug, which brought in nearly $200 million in the United States last year.

Advertisement

And there appears to be nothing the FDA can do about it.

“There's a gap in FDA's authority that results in patients getting excess doses of a drug at excess costs,” said Mark Ratain, a University of Chicago oncologist who has pushed for more accurate cancer drug dosing. “We should do something about this.”

Deciding on Dosage

It may be too late for the FDA to change the sotorasib dosage, although in principle it could demand a new regimen before granting final approval, perhaps in 2028. Under Project Optimus, however, the agency is doing something about dosage guidelines for future drugs. It is stressing dose optimization in its meetings with companies, particularly as they prepare to test drugs on patients for the first time, spokesperson Lauren-Jei McCarthy said.

Advertisement

“When you go in front of FDA with a plan to approve your drug now, they are going to address dosing studies,” said Julie Gralow, chief medical officer of the American Society of Clinical Oncology. “A lot of companies are struggling with this.”

That's largely because the new requirements add six months to a year and millions in drug costs, said Julie Bullock, a former FDA drug reviewer who advocated for more extensive dosing studies and is now senior vice president at Certara, a drug development consultancy.

In part, Project Optimus represents an effort to manage the faults of the FDA's accelerated approval , begun in 1992. While the process gets innovative drugs to patients more quickly, some medicines have proved lackluster or had unacceptable side effects.

That's especially true of the newer pills to treat cancer, said Donald Harvey, an Emory University pharmacology professor, who has led or contributed to more than 100 early-phase cancer trials.

Advertisement

A study released last month in the Journal of the American Medical Association showed that 41% of the cancer drugs granted accelerated approval from 2013 to 2017 did not improve overall survival or quality of life after five years.

Many of these drugs flop because they must be given at toxic dosages to have any effect, Harvey said, adding that sotorasib might work better if the company had found an appropriate dosage earlier on.

“Sotorasib is a poster child for incredibly bad development,” Harvey said. The drug was the first to target the KRAS G12C mutation, which drives about 15% of lung cancers and was considered “undruggable” until University of California-San Francisco chemist Kevan Shokat figured out how to attack it in 2012.

Given the specificity of sotorasib's target, Harvey said, Amgen could have found a lower dosage. “Instead, they followed the old model and said, ‘We're going to push the dose up until we see a major side effect.' They didn't need to do that. They just needed more experience with a lower dose.”

Advertisement

The 960-mg dose “is really tough on patients,” said Yale University oncologist and assistant professor Michael Grant. “They get a lot of nausea and other GI side effects that are not pleasant. It hurts their quality of life.”

The FDA noted in its review of sotorasib that in phase 1 studies tumors shrank when exposed to as little as a fifth of the 960-mg daily dose Amgen selected. At all doses tested in that early trial, the drug reached roughly the same concentrations in the blood, which suggested that at higher doses the drug was mostly just intensifying side effects like diarrhea, vomiting, and mouth sores.

For most classes of drugs, companies spend considerable time in phases 1 and 2 of development, homing in on the right dosage. “No one would think of dosing a statin or antibiotic at the highest tolerable dose,” Ratain said.

Things are different in cancer drug creation, whose approach originated with chemotherapy, which damages as many cancer cells as possible, wrecking plenty of healthy tissue in the bargain. Typically, a company's first of cancer drug trials involve escalating doses in small groups of patients until something like a quarter of them get seriously ill. That “maximum tolerated dose” is then employed in more advanced clinical trials, and goes on the drug's label. Once a drug is approved, a doctor can “go off-label” and alter the dosage, but most are leery of doing so.

Advertisement

Patients can find the experience rougher than advertised. During clinical trials, the side effects of the cancer drug osimertinib (Tagrisso) were listed as tolerable and manageable, said Jill Feldman, a lung cancer patient and advocate. “That killed me. After two months on that drug, I had lost 15 pounds, had sores in my mouth and down my throat, stomach stuff. It was horrible.”

Some practitioners, at least, have responded to the FDA's cues on sotorasib. In the Kaiser Permanente health system, lung cancer specialists start with a lower dose of the drug, spokesperson Stephen Shivinsky said.

Smaller Doses — And Revenue

Amgen was clearly aware of the advantages of the 240-mg dosage before it sought FDA approval: It filed a provisional patent application on that dosage before the agency gave breakthrough approval for the drug at 960 mg. The company doesn't appear to have disclosed the patent filing to investors or the FDA. McCarthy said the FDA was prohibited by from discussing the particulars of its sotorasib regulation plans.

Advertisement

Switching to a 240-mg dosage could register a huge hit to Amgen's revenue. The company markets the drug at more than $20,000 for a month of 960-mg daily doses. Each patient who could get by with a quarter of that would trim the company's revenue by roughly $180,000 a year.

Amgen declined to comment on the patent issue or to make an official available to discuss the dosage and pricing issues.

Crosslin, who depends on Social Security for his income, couldn't afford the $3,000 a month that Medicare required him to pay for sotorasib, but he has received assistance from Amgen and a charity that covers costs for patients below a certain income.

While the drug has worked well for Crosslin and other patients, its overall modest impact on lung cancer suggests that $5,000, rather than $20,000, might be a more appropriate price, Ratain said.

Advertisement

In the company's phase 3 clinical trial for advanced lung cancer patients, sotorasib kept patients alive for about a month longer than docetaxel, the current, highly toxic standard of care. Docetaxel is a generic drug for which Medicare pays about $1 per injection. The trial was so unconvincing that the FDA sent Amgen back to do another.

Ratain, a staunch critic of Amgen's handling of sotorasib, told Centers for Medicare & Services officials at a recent meeting that they should pay for sotorasib on a basis of 240 mg per day. But CMS would do that only “if there is a change in the drug's FDA-approved dosage,” spokesperson Aaron Smith said.

Drug companies generally don't want to spend money on trials like the one the FDA ordered on sotorasib. In 2018, Ratain and other researchers used their institutions' to conduct a dosing trial on the prostate cancer drug abiraterone, marketed under the brand name Zytiga by Johnson & Johnson. They found that taking one 250-mg pill with food was just as effective as taking four on an empty stomach, as the label called for.

Although J&J hasn't changed the Zytiga label, the evidence generated in that trial was strong enough for the standards-setting National Comprehensive Cancer Network to change its recommendations.

Advertisement

Post-marketing studies like that one are hard to conduct, Emory's Harvey said. Patients are reluctant to join a trial in which they may have to take a lower dosage, since most people tend to believe “the more the better,” he said.

“It's better for everyone to find the right dose before a drug is out on the market,” Harvey said. “Better for the patient, and better for the company, which can sell more of a good drug if the patients aren't getting sick and no longer taking it.”

——————————
By: Arthur Allen
Title: Amgen Plows Ahead With Costly, Highly Toxic Cancer Dosing Despite FDA
Sourced From: kffhealthnews.org//article/amgen-cancer-drug-sotorasib-lumakras-high-dosage-fda-dosing-trials/
Published Date: Tue, 07 May 2024 09:00:00 +0000

Advertisement
Continue Reading

News from the South

Trending