MDedge Endocrinology

A new COVID-19 variant has cropped up in the United Kingdom – a combination of the original Omicron strain and its subvariant BA.2 that may be more contagious than BA.2, ABC News reported.

As of last week, the U.K. Health Security Agency had found 637 cases of the variant, known as XE. The earliest case was found Jan. 19.

The new strain is known as a recombinant, which means it is a combination of two variants or viruses.

XE makes up less than 1% of sequenced cases in the United Kingdom so far, and there is no evidence yet that the strain leads to more severe disease or less vaccine protection.

“Right now, there’s really no public health concern,” John Brownstein, PhD, an epidemiologist and chief innovation officer at Boston Children’s Hospital, told ABC. “Recombinant variants happen over and over. In fact, the reason that this is the XE variant recombinant is that we’ve had XA, XB, XC, XD already, and none of those have turned out to be any real concern.”

A World Health Organization update published March 29 notes XE’s high transmissibility and says it may have a growth advantage of 10% over the BA.2 subvariant that now makes up more than 70% of cases in the United States.

A version of this article first appeared on WebMD.com.

A new COVID-19 variant has cropped up in the United Kingdom – a combination of the original Omicron strain and its subvariant BA.2 that may be more contagious than BA.2, ABC News reported.

As of last week, the U.K. Health Security Agency had found 637 cases of the variant, known as XE. The earliest case was found Jan. 19.

The new strain is known as a recombinant, which means it is a combination of two variants or viruses.

XE makes up less than 1% of sequenced cases in the United Kingdom so far, and there is no evidence yet that the strain leads to more severe disease or less vaccine protection.

“Right now, there’s really no public health concern,” John Brownstein, PhD, an epidemiologist and chief innovation officer at Boston Children’s Hospital, told ABC. “Recombinant variants happen over and over. In fact, the reason that this is the XE variant recombinant is that we’ve had XA, XB, XC, XD already, and none of those have turned out to be any real concern.”

A World Health Organization update published March 29 notes XE’s high transmissibility and says it may have a growth advantage of 10% over the BA.2 subvariant that now makes up more than 70% of cases in the United States.

A version of this article first appeared on WebMD.com.

A new COVID-19 variant has cropped up in the United Kingdom – a combination of the original Omicron strain and its subvariant BA.2 that may be more contagious than BA.2, ABC News reported.

As of last week, the U.K. Health Security Agency had found 637 cases of the variant, known as XE. The earliest case was found Jan. 19.

The new strain is known as a recombinant, which means it is a combination of two variants or viruses.

XE makes up less than 1% of sequenced cases in the United Kingdom so far, and there is no evidence yet that the strain leads to more severe disease or less vaccine protection.

“Right now, there’s really no public health concern,” John Brownstein, PhD, an epidemiologist and chief innovation officer at Boston Children’s Hospital, told ABC. “Recombinant variants happen over and over. In fact, the reason that this is the XE variant recombinant is that we’ve had XA, XB, XC, XD already, and none of those have turned out to be any real concern.”

A World Health Organization update published March 29 notes XE’s high transmissibility and says it may have a growth advantage of 10% over the BA.2 subvariant that now makes up more than 70% of cases in the United States.

A version of this article first appeared on WebMD.com.

Certain reproductive factors are associated with greater or lower risk of dementia, according to researchers who conducted a large population-based study with UK Biobank data.

Jessica Gong, a PhD candidate at the George Institute for Global Health at University of New South Wales in Australia, and coauthors found a greater dementia risk in women with early and late menarche, women who were younger when they first gave birth, and those who had had a hysterectomy, especially those who had a hysterectomy without concomitant oophorectomy or with a previous oophorectomy.

After controlling for key confounders, the researchers found lower risk of all-cause dementia if women had ever been pregnant, ever had an abortion, had a longer reproductive span, or had later menopause.

Use of oral contraceptive pills was associated with a lower dementia risk, they found.

In this study, there was no evidence that hormone therapy (HT) was associated with dementia risk (hazard ratio, 0.99, 95% confidence interval [0.90-1.09], P =.0828).

The analysis, published online April 5 in PLOS Medicine, comprised 273,240 women and 228,957 men without prevalent dementia.

The authors noted that dementia rates are increasing. Globally, 50 million people live with dementia, and the number is expected to triple by 2050, according to Alzheimer’s Disease International.

“Our study identified certain reproductive factors related to shorter exposure to endogenous estrogen were associated with increased risk of dementia, highlighting the susceptibility in dementia risk pertaining to women,” Ms. Gong told this publication.
 

Risk comparison of men and women

Men were included in this study to compare the association between number of children fathered and the risk of all-cause dementia, with the association in their female counterparts.

The U-shaped associations between the number of children and dementia risk were similar for both sexes, suggesting that the risk difference in women may not be associated with factors associated with childbearing

“It may be more related to social and behavioral factors in parenthood, rather than biological factors involved in childbearing,” Ms. Gong said.

Compared with those with two children, for those without children, the multiple adjusted HR (95% CI) was 1.18 (1.04, 1.33) (P = .027) for women and 1.10 (0.98-1.23) P = .164) for men.

For those with four or more children, the HR was 1.14 (0.98, 1.33) (P = .132) for women and 1.26 (1.10-1.45) (P = .003) for men.

Rachel Buckley, PhD, assistant professor of neurology with a dual appointment at Brigham and Women’s and Massachusetts General hospitals in Boston, told this publication she found the comparison of dementia risk with number of children in men and women “fascinating.”

She said the argument usually is that if women have had more births, then they have had more estrogen through their body because women get a huge injection of hormones in pregnancy.

“The idea is that the more pregnancies you have the more protected you are. But this study put that on its head, because if men and women are showing increased [dementia] risk in the number of children they have, it suggests there must be something about having the children – not necessarily the circulating hormones – that might be having an impact,” Dr. Buckley said.

“I had never thought to compare the number of children in men. I do find that very interesting,” she said.

As for the lack of a link between HT and dementia risk, in this study she said, she wouldn’t shut the door on that discussion just yet.

She noted the long history of controversy in the field about whether there is a protective factor against dementia for estrogen or whether exposure to estrogen leads to increased risk.

Before the landmark Women’s Health Initiative (WHI) study in the 1990s, she pointed out, there was evidence in many observational studies that women who had longer exposure to estrogen – whether that was earlier age at first period and later age at menopause combined or women had taken hormone therapy at some point, had less risk for dementia.

Dr. Buckley said that in a secondary outcome of WHI, however, “there was increased risk for progression to dementia in women who were taking hormone therapy which essentially flipped the field on its ahead because until that point everybody thought that estrogen was a protective factor.”

She said although this study found no association with dementia, she still thinks HT has a role to play and that it may just need to be better tailored to individuals.

“If you think about it, we have our tailored cocktail of hormones in our body and who’s to say that my hormones are going to be the same as yours? Why should you and I be put on the same hormone therapy and assume that will give us the same outcome? I think we could do a lot better with customization and calibration of hormones to aid in women’s health.”
 

Lifetime approach to dementia

Ms. Gong says future dementia risk-reduction strategies should consider sex-specific risk, and consider the reproductive events that took place in women’s lifespans as well as their entire hormone history when assessing dementia risk, to ensure that the strategies are sex sensitive.

Dr. Buckley agrees: “I don’t think we should ever think about dementia in terms of 65 onwards. We know this disease is insidious and it starts very, very early.”

Regarding limitations, the authors noted that it was a retrospective study that included self-reported measures of reproductive factors, which may be inherently subject to recall bias.

A coauthor does consultant work for Amgen, Freeline, and Kirin outside the submitted work. There were no other relevant financial disclosures.

Certain reproductive factors are associated with greater or lower risk of dementia, according to researchers who conducted a large population-based study with UK Biobank data.

Jessica Gong, a PhD candidate at the George Institute for Global Health at University of New South Wales in Australia, and coauthors found a greater dementia risk in women with early and late menarche, women who were younger when they first gave birth, and those who had had a hysterectomy, especially those who had a hysterectomy without concomitant oophorectomy or with a previous oophorectomy.

After controlling for key confounders, the researchers found lower risk of all-cause dementia if women had ever been pregnant, ever had an abortion, had a longer reproductive span, or had later menopause.

Use of oral contraceptive pills was associated with a lower dementia risk, they found.

In this study, there was no evidence that hormone therapy (HT) was associated with dementia risk (hazard ratio, 0.99, 95% confidence interval [0.90-1.09], P =.0828).

The analysis, published online April 5 in PLOS Medicine, comprised 273,240 women and 228,957 men without prevalent dementia.

The authors noted that dementia rates are increasing. Globally, 50 million people live with dementia, and the number is expected to triple by 2050, according to Alzheimer’s Disease International.

“Our study identified certain reproductive factors related to shorter exposure to endogenous estrogen were associated with increased risk of dementia, highlighting the susceptibility in dementia risk pertaining to women,” Ms. Gong told this publication.
 

Risk comparison of men and women

Men were included in this study to compare the association between number of children fathered and the risk of all-cause dementia, with the association in their female counterparts.

The U-shaped associations between the number of children and dementia risk were similar for both sexes, suggesting that the risk difference in women may not be associated with factors associated with childbearing

“It may be more related to social and behavioral factors in parenthood, rather than biological factors involved in childbearing,” Ms. Gong said.

Compared with those with two children, for those without children, the multiple adjusted HR (95% CI) was 1.18 (1.04, 1.33) (P = .027) for women and 1.10 (0.98-1.23) P = .164) for men.

For those with four or more children, the HR was 1.14 (0.98, 1.33) (P = .132) for women and 1.26 (1.10-1.45) (P = .003) for men.

Rachel Buckley, PhD, assistant professor of neurology with a dual appointment at Brigham and Women’s and Massachusetts General hospitals in Boston, told this publication she found the comparison of dementia risk with number of children in men and women “fascinating.”

She said the argument usually is that if women have had more births, then they have had more estrogen through their body because women get a huge injection of hormones in pregnancy.

“The idea is that the more pregnancies you have the more protected you are. But this study put that on its head, because if men and women are showing increased [dementia] risk in the number of children they have, it suggests there must be something about having the children – not necessarily the circulating hormones – that might be having an impact,” Dr. Buckley said.

“I had never thought to compare the number of children in men. I do find that very interesting,” she said.

As for the lack of a link between HT and dementia risk, in this study she said, she wouldn’t shut the door on that discussion just yet.

She noted the long history of controversy in the field about whether there is a protective factor against dementia for estrogen or whether exposure to estrogen leads to increased risk.

Before the landmark Women’s Health Initiative (WHI) study in the 1990s, she pointed out, there was evidence in many observational studies that women who had longer exposure to estrogen – whether that was earlier age at first period and later age at menopause combined or women had taken hormone therapy at some point, had less risk for dementia.

Dr. Buckley said that in a secondary outcome of WHI, however, “there was increased risk for progression to dementia in women who were taking hormone therapy which essentially flipped the field on its ahead because until that point everybody thought that estrogen was a protective factor.”

She said although this study found no association with dementia, she still thinks HT has a role to play and that it may just need to be better tailored to individuals.

“If you think about it, we have our tailored cocktail of hormones in our body and who’s to say that my hormones are going to be the same as yours? Why should you and I be put on the same hormone therapy and assume that will give us the same outcome? I think we could do a lot better with customization and calibration of hormones to aid in women’s health.”
 

Lifetime approach to dementia

Ms. Gong says future dementia risk-reduction strategies should consider sex-specific risk, and consider the reproductive events that took place in women’s lifespans as well as their entire hormone history when assessing dementia risk, to ensure that the strategies are sex sensitive.

Dr. Buckley agrees: “I don’t think we should ever think about dementia in terms of 65 onwards. We know this disease is insidious and it starts very, very early.”

Regarding limitations, the authors noted that it was a retrospective study that included self-reported measures of reproductive factors, which may be inherently subject to recall bias.

A coauthor does consultant work for Amgen, Freeline, and Kirin outside the submitted work. There were no other relevant financial disclosures.

Certain reproductive factors are associated with greater or lower risk of dementia, according to researchers who conducted a large population-based study with UK Biobank data.

Jessica Gong, a PhD candidate at the George Institute for Global Health at University of New South Wales in Australia, and coauthors found a greater dementia risk in women with early and late menarche, women who were younger when they first gave birth, and those who had had a hysterectomy, especially those who had a hysterectomy without concomitant oophorectomy or with a previous oophorectomy.

After controlling for key confounders, the researchers found lower risk of all-cause dementia if women had ever been pregnant, ever had an abortion, had a longer reproductive span, or had later menopause.

Use of oral contraceptive pills was associated with a lower dementia risk, they found.

In this study, there was no evidence that hormone therapy (HT) was associated with dementia risk (hazard ratio, 0.99, 95% confidence interval [0.90-1.09], P =.0828).

The analysis, published online April 5 in PLOS Medicine, comprised 273,240 women and 228,957 men without prevalent dementia.

The authors noted that dementia rates are increasing. Globally, 50 million people live with dementia, and the number is expected to triple by 2050, according to Alzheimer’s Disease International.

“Our study identified certain reproductive factors related to shorter exposure to endogenous estrogen were associated with increased risk of dementia, highlighting the susceptibility in dementia risk pertaining to women,” Ms. Gong told this publication.
 

Risk comparison of men and women

Men were included in this study to compare the association between number of children fathered and the risk of all-cause dementia, with the association in their female counterparts.

The U-shaped associations between the number of children and dementia risk were similar for both sexes, suggesting that the risk difference in women may not be associated with factors associated with childbearing

“It may be more related to social and behavioral factors in parenthood, rather than biological factors involved in childbearing,” Ms. Gong said.

Compared with those with two children, for those without children, the multiple adjusted HR (95% CI) was 1.18 (1.04, 1.33) (P = .027) for women and 1.10 (0.98-1.23) P = .164) for men.

For those with four or more children, the HR was 1.14 (0.98, 1.33) (P = .132) for women and 1.26 (1.10-1.45) (P = .003) for men.

Rachel Buckley, PhD, assistant professor of neurology with a dual appointment at Brigham and Women’s and Massachusetts General hospitals in Boston, told this publication she found the comparison of dementia risk with number of children in men and women “fascinating.”

She said the argument usually is that if women have had more births, then they have had more estrogen through their body because women get a huge injection of hormones in pregnancy.

“The idea is that the more pregnancies you have the more protected you are. But this study put that on its head, because if men and women are showing increased [dementia] risk in the number of children they have, it suggests there must be something about having the children – not necessarily the circulating hormones – that might be having an impact,” Dr. Buckley said.

“I had never thought to compare the number of children in men. I do find that very interesting,” she said.

As for the lack of a link between HT and dementia risk, in this study she said, she wouldn’t shut the door on that discussion just yet.

She noted the long history of controversy in the field about whether there is a protective factor against dementia for estrogen or whether exposure to estrogen leads to increased risk.

Before the landmark Women’s Health Initiative (WHI) study in the 1990s, she pointed out, there was evidence in many observational studies that women who had longer exposure to estrogen – whether that was earlier age at first period and later age at menopause combined or women had taken hormone therapy at some point, had less risk for dementia.

Dr. Buckley said that in a secondary outcome of WHI, however, “there was increased risk for progression to dementia in women who were taking hormone therapy which essentially flipped the field on its ahead because until that point everybody thought that estrogen was a protective factor.”

She said although this study found no association with dementia, she still thinks HT has a role to play and that it may just need to be better tailored to individuals.

“If you think about it, we have our tailored cocktail of hormones in our body and who’s to say that my hormones are going to be the same as yours? Why should you and I be put on the same hormone therapy and assume that will give us the same outcome? I think we could do a lot better with customization and calibration of hormones to aid in women’s health.”
 

Lifetime approach to dementia

Ms. Gong says future dementia risk-reduction strategies should consider sex-specific risk, and consider the reproductive events that took place in women’s lifespans as well as their entire hormone history when assessing dementia risk, to ensure that the strategies are sex sensitive.

Dr. Buckley agrees: “I don’t think we should ever think about dementia in terms of 65 onwards. We know this disease is insidious and it starts very, very early.”

Regarding limitations, the authors noted that it was a retrospective study that included self-reported measures of reproductive factors, which may be inherently subject to recall bias.

A coauthor does consultant work for Amgen, Freeline, and Kirin outside the submitted work. There were no other relevant financial disclosures.

There is a two-lane bridge in my town. It is quaint and picturesque, and when we first moved here, I would gaze out at the water as I drove, letting my mind wander along with the seagulls drifting alongside the car. Until one day, crossing back over, I passed a school bus stopped in the other lane, and instead of waving back, the driver gave me such a fierce look of disapproval I felt like I’d been to the principal’s office. What had I done?

I started paying more attention to the pattern of the other cars on the bridge. Although it appeared to be a standard two-lane width, the lanes weren’t quite wide enough if a school bus or large truck needed to cross at the same time as a car coming from the opposite direction. They had to wait until the other lane was clear. It was an unwritten rule of the town that if you saw a school bus on the other side, you stopped your car and yielded the bridge to the bus. It took me weeks to figure this out. When I did, I felt like I finally belonged in the community. Before, I’d been an outsider.

This got me thinking about culture. Every place has its unwritten rules, whether a community or a workplace. But how do we know the culture of a place? It’s pretty much impossible until we experience it for ourselves.

When I did figure out the bridge, I had a little bit of anger, to be honest. How was I supposed to know about the lanes? There weren’t any signs. Geez.

Now, when I approach the bridge, I don’t even think about it. I know what to do if I see a bus coming.

But sometimes I remember that time of confusion before I deciphered the unwritten rule. I still have a twinge of guilt for having done something wrong, even though it hadn’t been my fault.

It reminded me of a memory from medical training. I was an MS4, and my ER rotation was in a busy county hospital with a level I trauma center. To say that the place was chaotic would be an understatement.

On the first morning, I was shown the chart rack (yes, this was back in the day of paper charts). Charts were placed in the order that patients arrived. Med students and residents were to take a chart in chronological order, go triage and assess the patient, and then find an attending. Once finished, you put the chart back on the rack and picked up the next one. This was the extent of my orientation to the ER.

The days and weeks of the rotation flew by. It was a busy and exciting time. By the end of the month, I’d come to feel a part of the team.

Until one day, after finishing discharging a patient, an attending asked me, “Where’s the billing sheet?”

I had no idea what she was talking about. No one had ever shown me a billing sheet. But by this point, as an MS4, I knew well that if an attending asked you something you didn’t know the answer to, you shouldn’t just say that you didn’t know. You should try to figure out if you could at least approximate an answer first.

As I scrambled in my mind to figure out what she was asking me, she took one look at the apprehension in my eyes and asked again, raising her voice, “You haven’t been doing the billing sheets?”

I thought back to the first day of the rotation. The cursory 30-second orientation. Chart rack. Take one. See the patient. Put it back. See the next patient. Nothing about billing sheets.

“No,” I said. “No one ever told me about – ”

But the attending didn’t care that I hadn’t been instructed on the billing sheets. She ripped into me, yelling about how she couldn’t believe I’d been working there the entire month and was not doing the billing sheets. She showed me what they were and where they were supposed to be going and, in front of the whole staff, treated me like not only the biggest idiot she’d ever worked with but that the hospital had ever seen.

As she berated me, I thought about all the patients I’d seen that month. All the billing sheets I hadn’t placed in the pile. All the attendings who hadn’t gotten credit for the patients they’d staffed with me.

But how could I have known? I wanted to ask. How could I have known if nobody showed me or told me?

It was like the bridge. I was in a new environment and somehow expected to know the rules without anyone telling me; and when I didn’t know, people treated me like I’d done it the wrong way on purpose.

I didn’t end up saying anything more to that attending. What could I have said? She had already unleashed a mountain of her pent-up anger at me.

What I did decide in that moment was that I would never be an attending like that.

Like the bridge, this memory years later can still make me feel guilt and shame for doing something wrong. Even though it wasn’t my fault.

I was thinking about this recently with the Match. Thousands of freshly graduated medical students embarking on their new positions as interns in teaching hospitals across the country.

For anyone who, like me, struggled with the unwritten rules of the medical culture with each new rotation, remember to be kind to yourself. If someone treats you poorly for not knowing something, you are not an idiot. You’ve worked incredibly hard to get where you are, and you deserve to be there.

For attendings and more senior trainees, remember what it was like to be starting in a new place. We all make mistakes, and often it’s simply because of a lack of information.

Trainees shouldn’t have to suffer and be made to feel like outsiders until they figure out the unwritten rules of the place. They belong.
 

Dr. Lycette is medical director of Providence Oncology and Hematology Care Clinic, Seaside, Ore. She disclosed no relevant conflicts of interest. A version of this article first appeared on Medscape.com.

There is a two-lane bridge in my town. It is quaint and picturesque, and when we first moved here, I would gaze out at the water as I drove, letting my mind wander along with the seagulls drifting alongside the car. Until one day, crossing back over, I passed a school bus stopped in the other lane, and instead of waving back, the driver gave me such a fierce look of disapproval I felt like I’d been to the principal’s office. What had I done?

I started paying more attention to the pattern of the other cars on the bridge. Although it appeared to be a standard two-lane width, the lanes weren’t quite wide enough if a school bus or large truck needed to cross at the same time as a car coming from the opposite direction. They had to wait until the other lane was clear. It was an unwritten rule of the town that if you saw a school bus on the other side, you stopped your car and yielded the bridge to the bus. It took me weeks to figure this out. When I did, I felt like I finally belonged in the community. Before, I’d been an outsider.

This got me thinking about culture. Every place has its unwritten rules, whether a community or a workplace. But how do we know the culture of a place? It’s pretty much impossible until we experience it for ourselves.

When I did figure out the bridge, I had a little bit of anger, to be honest. How was I supposed to know about the lanes? There weren’t any signs. Geez.

Now, when I approach the bridge, I don’t even think about it. I know what to do if I see a bus coming.

But sometimes I remember that time of confusion before I deciphered the unwritten rule. I still have a twinge of guilt for having done something wrong, even though it hadn’t been my fault.

It reminded me of a memory from medical training. I was an MS4, and my ER rotation was in a busy county hospital with a level I trauma center. To say that the place was chaotic would be an understatement.

On the first morning, I was shown the chart rack (yes, this was back in the day of paper charts). Charts were placed in the order that patients arrived. Med students and residents were to take a chart in chronological order, go triage and assess the patient, and then find an attending. Once finished, you put the chart back on the rack and picked up the next one. This was the extent of my orientation to the ER.

The days and weeks of the rotation flew by. It was a busy and exciting time. By the end of the month, I’d come to feel a part of the team.

Until one day, after finishing discharging a patient, an attending asked me, “Where’s the billing sheet?”

I had no idea what she was talking about. No one had ever shown me a billing sheet. But by this point, as an MS4, I knew well that if an attending asked you something you didn’t know the answer to, you shouldn’t just say that you didn’t know. You should try to figure out if you could at least approximate an answer first.

As I scrambled in my mind to figure out what she was asking me, she took one look at the apprehension in my eyes and asked again, raising her voice, “You haven’t been doing the billing sheets?”

I thought back to the first day of the rotation. The cursory 30-second orientation. Chart rack. Take one. See the patient. Put it back. See the next patient. Nothing about billing sheets.

“No,” I said. “No one ever told me about – ”

But the attending didn’t care that I hadn’t been instructed on the billing sheets. She ripped into me, yelling about how she couldn’t believe I’d been working there the entire month and was not doing the billing sheets. She showed me what they were and where they were supposed to be going and, in front of the whole staff, treated me like not only the biggest idiot she’d ever worked with but that the hospital had ever seen.

As she berated me, I thought about all the patients I’d seen that month. All the billing sheets I hadn’t placed in the pile. All the attendings who hadn’t gotten credit for the patients they’d staffed with me.

But how could I have known? I wanted to ask. How could I have known if nobody showed me or told me?

It was like the bridge. I was in a new environment and somehow expected to know the rules without anyone telling me; and when I didn’t know, people treated me like I’d done it the wrong way on purpose.

I didn’t end up saying anything more to that attending. What could I have said? She had already unleashed a mountain of her pent-up anger at me.

What I did decide in that moment was that I would never be an attending like that.

Like the bridge, this memory years later can still make me feel guilt and shame for doing something wrong. Even though it wasn’t my fault.

I was thinking about this recently with the Match. Thousands of freshly graduated medical students embarking on their new positions as interns in teaching hospitals across the country.

For anyone who, like me, struggled with the unwritten rules of the medical culture with each new rotation, remember to be kind to yourself. If someone treats you poorly for not knowing something, you are not an idiot. You’ve worked incredibly hard to get where you are, and you deserve to be there.

For attendings and more senior trainees, remember what it was like to be starting in a new place. We all make mistakes, and often it’s simply because of a lack of information.

Trainees shouldn’t have to suffer and be made to feel like outsiders until they figure out the unwritten rules of the place. They belong.
 

Dr. Lycette is medical director of Providence Oncology and Hematology Care Clinic, Seaside, Ore. She disclosed no relevant conflicts of interest. A version of this article first appeared on Medscape.com.

There is a two-lane bridge in my town. It is quaint and picturesque, and when we first moved here, I would gaze out at the water as I drove, letting my mind wander along with the seagulls drifting alongside the car. Until one day, crossing back over, I passed a school bus stopped in the other lane, and instead of waving back, the driver gave me such a fierce look of disapproval I felt like I’d been to the principal’s office. What had I done?

I started paying more attention to the pattern of the other cars on the bridge. Although it appeared to be a standard two-lane width, the lanes weren’t quite wide enough if a school bus or large truck needed to cross at the same time as a car coming from the opposite direction. They had to wait until the other lane was clear. It was an unwritten rule of the town that if you saw a school bus on the other side, you stopped your car and yielded the bridge to the bus. It took me weeks to figure this out. When I did, I felt like I finally belonged in the community. Before, I’d been an outsider.

This got me thinking about culture. Every place has its unwritten rules, whether a community or a workplace. But how do we know the culture of a place? It’s pretty much impossible until we experience it for ourselves.

When I did figure out the bridge, I had a little bit of anger, to be honest. How was I supposed to know about the lanes? There weren’t any signs. Geez.

Now, when I approach the bridge, I don’t even think about it. I know what to do if I see a bus coming.

But sometimes I remember that time of confusion before I deciphered the unwritten rule. I still have a twinge of guilt for having done something wrong, even though it hadn’t been my fault.

It reminded me of a memory from medical training. I was an MS4, and my ER rotation was in a busy county hospital with a level I trauma center. To say that the place was chaotic would be an understatement.

On the first morning, I was shown the chart rack (yes, this was back in the day of paper charts). Charts were placed in the order that patients arrived. Med students and residents were to take a chart in chronological order, go triage and assess the patient, and then find an attending. Once finished, you put the chart back on the rack and picked up the next one. This was the extent of my orientation to the ER.

The days and weeks of the rotation flew by. It was a busy and exciting time. By the end of the month, I’d come to feel a part of the team.

Until one day, after finishing discharging a patient, an attending asked me, “Where’s the billing sheet?”

I had no idea what she was talking about. No one had ever shown me a billing sheet. But by this point, as an MS4, I knew well that if an attending asked you something you didn’t know the answer to, you shouldn’t just say that you didn’t know. You should try to figure out if you could at least approximate an answer first.

As I scrambled in my mind to figure out what she was asking me, she took one look at the apprehension in my eyes and asked again, raising her voice, “You haven’t been doing the billing sheets?”

I thought back to the first day of the rotation. The cursory 30-second orientation. Chart rack. Take one. See the patient. Put it back. See the next patient. Nothing about billing sheets.

“No,” I said. “No one ever told me about – ”

But the attending didn’t care that I hadn’t been instructed on the billing sheets. She ripped into me, yelling about how she couldn’t believe I’d been working there the entire month and was not doing the billing sheets. She showed me what they were and where they were supposed to be going and, in front of the whole staff, treated me like not only the biggest idiot she’d ever worked with but that the hospital had ever seen.

As she berated me, I thought about all the patients I’d seen that month. All the billing sheets I hadn’t placed in the pile. All the attendings who hadn’t gotten credit for the patients they’d staffed with me.

But how could I have known? I wanted to ask. How could I have known if nobody showed me or told me?

It was like the bridge. I was in a new environment and somehow expected to know the rules without anyone telling me; and when I didn’t know, people treated me like I’d done it the wrong way on purpose.

I didn’t end up saying anything more to that attending. What could I have said? She had already unleashed a mountain of her pent-up anger at me.

What I did decide in that moment was that I would never be an attending like that.

Like the bridge, this memory years later can still make me feel guilt and shame for doing something wrong. Even though it wasn’t my fault.

I was thinking about this recently with the Match. Thousands of freshly graduated medical students embarking on their new positions as interns in teaching hospitals across the country.

For anyone who, like me, struggled with the unwritten rules of the medical culture with each new rotation, remember to be kind to yourself. If someone treats you poorly for not knowing something, you are not an idiot. You’ve worked incredibly hard to get where you are, and you deserve to be there.

For attendings and more senior trainees, remember what it was like to be starting in a new place. We all make mistakes, and often it’s simply because of a lack of information.

Trainees shouldn’t have to suffer and be made to feel like outsiders until they figure out the unwritten rules of the place. They belong.
 

Dr. Lycette is medical director of Providence Oncology and Hematology Care Clinic, Seaside, Ore. She disclosed no relevant conflicts of interest. A version of this article first appeared on Medscape.com.

When the PCSK9 inhibitor alirocumab is added to high-intensity statins soon after an acute myocardial infarction (AMI), the reduction in atheroma volume is doubled at 12 months, compared with placebo, while other key signs of plaque stabilization, such as fibrous cap thickness, are also significantly and substantially improved, according to the results of the PACMAN-AMI trial.

The study is consistent with other PCSK9 inhibitor trials, supporting the concept that “we should be seeking very low levels of LDL-C in high-risk patients,” reported Lorenz Räber, MD, PhD, of Bern (Switz.) University Hospital, at the annual scientific sessions of the American College of Cardiology.

Catherine Hackett/MDedge News

Primary outcome was atheroma volume

The primary endpoint was atheroma volume as determined by intravenous ultrasound (IVUS), but the secondary endpoints of maximum lipid core burden, as determined by near infrared spectroscopy (NIRS), and fibrous cap thickness, as determined by optical coherence tomography (OCT), were also adequately powered, according to Dr. Räber.

The imaging measures taken at baseline were repeated in exactly the same spot after 52 weeks on treatment.

For the primary outcome of atheroma volume, the mean 2.1% reduction among those randomized to alirocumab was more than double the 0.9% reduction in the placebo group (P = .001).

The mean reduction in lipid core volume based on a maximum lipid core burden index was also more than doubled (-79.42 vs. -37.60 maxLCBI­4mm; P = .006). The increase in fibrous cap thickness was not quite twofold greater but very close (62.67 vs. 33.19 mcm; P = .001).

From baseline, the relative reductions in LDL-C, which were reached about 4 weeks after starting treatment and maintained over the course of the study, were greater in the group randomized to alirocumab (-84.8% vs. -50.7%). This was expected, but the more important finding was a near linear relationship between reductions of LDL-C and each of these endpoints regardless of treatment, fully explaining the advantage of alirocumab, according to Dr. Räber.

For the addition of alirocumab, “these findings indicate incremental coronary plaque regression, lipid core reduction, and plaque stabilization, and provide a mechanistic rationale in favor of early initiation of very intensive LDL-C lower in the setting of an acute MI,” he said.

The results of the PACMAN-AMI trial were published simultaneously at the time of the ACC presentation.
 

Results consistent with earlier trials

Alirocumab was well tolerated. Injection site reactions (6.1% vs. 3.3%) and general allergic reactions (3.4% vs. 0%) were more common on alirocumab, but there were no significant differences between the arms of this study for serious adverse events. There were slightly more neurocognitive events (2.0 vs. 0%) and abnormal alanine transferase levels (0.7% vs. 0%) in the alirocumab group.

The data are generally consistent with two previously published trials with another PCSK9 inhibitor, according to Dr. Räber. In the randomized GLAGOV trial published more than 5 years ago, evolocumab also produced about a 1% absolute reduction (P < .001) in plaque volume at the end of 78 weeks of follow-up relative to placebo.

However, that trial was limited to patients with coronary artery disease without a recent cardiovascular event. The more recent HUYGENS trial, which was presented virtually at the 2021 annual meeting of the European Society of Cardiology meeting and has not yet been published, looked at one of the endpoints also evaluated in PACMAN-AMI. In that study of 161 randomized NSTEMI patients, there was also about a doubling of fibrous cap thickness (42.7 vs. 21.5 mcm) for the PCSK9 inhibitor relative to placebo.

Clinical endpoints were not compared in either the PACMAN-AMI or HUYGENS trial.
 

PACMAN-AMI confirms plaque stabilization

Nevertheless, the message of plaque stabilization is important, according to Anthony N. DeMaria, MD, Founding Director of the Sulpizio Cardiovascular Center at the University of San Diego. Although he acknowledged that a 1% absolute reduction in mean plaque volume might “make you want to yawn,” he argued that this is a misreading of important changes observed in plaque physiology.

“What we have now is evidence that very low lipid levels result in plaque remodeling. The plaques might not get a whole lot smaller, but the changes are important,” he said, noting, for example, that a thicker fibrous cap and increased plaque stability “clearly plays a role in reducing risk of subsequent events.”

“You cannot help but be impressed by the relationship of lipid lowering and the favorable effect on remodeling,” he added.

The data associating PCSK9 inhibitors with protection from cardiovascular events is already extensive, according to Michael J. Blaha, MD, Director of Clinical Research for Ciccarone Center for Prevention of Cardiovascular Disease, Johns Hopkins University, Baltimore, but he called PACMAN-ACS “an extremely relevant study.”

When the PCSK9 inhibitor alirocumab is added to high-intensity statins soon after an acute myocardial infarction (AMI), the reduction in atheroma volume is doubled at 12 months, compared with placebo, while other key signs of plaque stabilization, such as fibrous cap thickness, are also significantly and substantially improved, according to the results of the PACMAN-AMI trial.

The study is consistent with other PCSK9 inhibitor trials, supporting the concept that “we should be seeking very low levels of LDL-C in high-risk patients,” reported Lorenz Räber, MD, PhD, of Bern (Switz.) University Hospital, at the annual scientific sessions of the American College of Cardiology.

Catherine Hackett/MDedge News

Primary outcome was atheroma volume

The primary endpoint was atheroma volume as determined by intravenous ultrasound (IVUS), but the secondary endpoints of maximum lipid core burden, as determined by near infrared spectroscopy (NIRS), and fibrous cap thickness, as determined by optical coherence tomography (OCT), were also adequately powered, according to Dr. Räber.

The imaging measures taken at baseline were repeated in exactly the same spot after 52 weeks on treatment.

For the primary outcome of atheroma volume, the mean 2.1% reduction among those randomized to alirocumab was more than double the 0.9% reduction in the placebo group (P = .001).

The mean reduction in lipid core volume based on a maximum lipid core burden index was also more than doubled (-79.42 vs. -37.60 maxLCBI­4mm; P = .006). The increase in fibrous cap thickness was not quite twofold greater but very close (62.67 vs. 33.19 mcm; P = .001).

From baseline, the relative reductions in LDL-C, which were reached about 4 weeks after starting treatment and maintained over the course of the study, were greater in the group randomized to alirocumab (-84.8% vs. -50.7%). This was expected, but the more important finding was a near linear relationship between reductions of LDL-C and each of these endpoints regardless of treatment, fully explaining the advantage of alirocumab, according to Dr. Räber.

For the addition of alirocumab, “these findings indicate incremental coronary plaque regression, lipid core reduction, and plaque stabilization, and provide a mechanistic rationale in favor of early initiation of very intensive LDL-C lower in the setting of an acute MI,” he said.

The results of the PACMAN-AMI trial were published simultaneously at the time of the ACC presentation.
 

Results consistent with earlier trials

Alirocumab was well tolerated. Injection site reactions (6.1% vs. 3.3%) and general allergic reactions (3.4% vs. 0%) were more common on alirocumab, but there were no significant differences between the arms of this study for serious adverse events. There were slightly more neurocognitive events (2.0 vs. 0%) and abnormal alanine transferase levels (0.7% vs. 0%) in the alirocumab group.

The data are generally consistent with two previously published trials with another PCSK9 inhibitor, according to Dr. Räber. In the randomized GLAGOV trial published more than 5 years ago, evolocumab also produced about a 1% absolute reduction (P < .001) in plaque volume at the end of 78 weeks of follow-up relative to placebo.

However, that trial was limited to patients with coronary artery disease without a recent cardiovascular event. The more recent HUYGENS trial, which was presented virtually at the 2021 annual meeting of the European Society of Cardiology meeting and has not yet been published, looked at one of the endpoints also evaluated in PACMAN-AMI. In that study of 161 randomized NSTEMI patients, there was also about a doubling of fibrous cap thickness (42.7 vs. 21.5 mcm) for the PCSK9 inhibitor relative to placebo.

Clinical endpoints were not compared in either the PACMAN-AMI or HUYGENS trial.
 

PACMAN-AMI confirms plaque stabilization

Nevertheless, the message of plaque stabilization is important, according to Anthony N. DeMaria, MD, Founding Director of the Sulpizio Cardiovascular Center at the University of San Diego. Although he acknowledged that a 1% absolute reduction in mean plaque volume might “make you want to yawn,” he argued that this is a misreading of important changes observed in plaque physiology.

“What we have now is evidence that very low lipid levels result in plaque remodeling. The plaques might not get a whole lot smaller, but the changes are important,” he said, noting, for example, that a thicker fibrous cap and increased plaque stability “clearly plays a role in reducing risk of subsequent events.”

“You cannot help but be impressed by the relationship of lipid lowering and the favorable effect on remodeling,” he added.

The data associating PCSK9 inhibitors with protection from cardiovascular events is already extensive, according to Michael J. Blaha, MD, Director of Clinical Research for Ciccarone Center for Prevention of Cardiovascular Disease, Johns Hopkins University, Baltimore, but he called PACMAN-ACS “an extremely relevant study.”

When the PCSK9 inhibitor alirocumab is added to high-intensity statins soon after an acute myocardial infarction (AMI), the reduction in atheroma volume is doubled at 12 months, compared with placebo, while other key signs of plaque stabilization, such as fibrous cap thickness, are also significantly and substantially improved, according to the results of the PACMAN-AMI trial.

The study is consistent with other PCSK9 inhibitor trials, supporting the concept that “we should be seeking very low levels of LDL-C in high-risk patients,” reported Lorenz Räber, MD, PhD, of Bern (Switz.) University Hospital, at the annual scientific sessions of the American College of Cardiology.

Catherine Hackett/MDedge News

Primary outcome was atheroma volume

The primary endpoint was atheroma volume as determined by intravenous ultrasound (IVUS), but the secondary endpoints of maximum lipid core burden, as determined by near infrared spectroscopy (NIRS), and fibrous cap thickness, as determined by optical coherence tomography (OCT), were also adequately powered, according to Dr. Räber.

The imaging measures taken at baseline were repeated in exactly the same spot after 52 weeks on treatment.

For the primary outcome of atheroma volume, the mean 2.1% reduction among those randomized to alirocumab was more than double the 0.9% reduction in the placebo group (P = .001).

The mean reduction in lipid core volume based on a maximum lipid core burden index was also more than doubled (-79.42 vs. -37.60 maxLCBI­4mm; P = .006). The increase in fibrous cap thickness was not quite twofold greater but very close (62.67 vs. 33.19 mcm; P = .001).

From baseline, the relative reductions in LDL-C, which were reached about 4 weeks after starting treatment and maintained over the course of the study, were greater in the group randomized to alirocumab (-84.8% vs. -50.7%). This was expected, but the more important finding was a near linear relationship between reductions of LDL-C and each of these endpoints regardless of treatment, fully explaining the advantage of alirocumab, according to Dr. Räber.

For the addition of alirocumab, “these findings indicate incremental coronary plaque regression, lipid core reduction, and plaque stabilization, and provide a mechanistic rationale in favor of early initiation of very intensive LDL-C lower in the setting of an acute MI,” he said.

The results of the PACMAN-AMI trial were published simultaneously at the time of the ACC presentation.
 

Results consistent with earlier trials

Alirocumab was well tolerated. Injection site reactions (6.1% vs. 3.3%) and general allergic reactions (3.4% vs. 0%) were more common on alirocumab, but there were no significant differences between the arms of this study for serious adverse events. There were slightly more neurocognitive events (2.0 vs. 0%) and abnormal alanine transferase levels (0.7% vs. 0%) in the alirocumab group.

The data are generally consistent with two previously published trials with another PCSK9 inhibitor, according to Dr. Räber. In the randomized GLAGOV trial published more than 5 years ago, evolocumab also produced about a 1% absolute reduction (P < .001) in plaque volume at the end of 78 weeks of follow-up relative to placebo.

However, that trial was limited to patients with coronary artery disease without a recent cardiovascular event. The more recent HUYGENS trial, which was presented virtually at the 2021 annual meeting of the European Society of Cardiology meeting and has not yet been published, looked at one of the endpoints also evaluated in PACMAN-AMI. In that study of 161 randomized NSTEMI patients, there was also about a doubling of fibrous cap thickness (42.7 vs. 21.5 mcm) for the PCSK9 inhibitor relative to placebo.

Clinical endpoints were not compared in either the PACMAN-AMI or HUYGENS trial.
 

PACMAN-AMI confirms plaque stabilization

Nevertheless, the message of plaque stabilization is important, according to Anthony N. DeMaria, MD, Founding Director of the Sulpizio Cardiovascular Center at the University of San Diego. Although he acknowledged that a 1% absolute reduction in mean plaque volume might “make you want to yawn,” he argued that this is a misreading of important changes observed in plaque physiology.

“What we have now is evidence that very low lipid levels result in plaque remodeling. The plaques might not get a whole lot smaller, but the changes are important,” he said, noting, for example, that a thicker fibrous cap and increased plaque stability “clearly plays a role in reducing risk of subsequent events.”

“You cannot help but be impressed by the relationship of lipid lowering and the favorable effect on remodeling,” he added.

The data associating PCSK9 inhibitors with protection from cardiovascular events is already extensive, according to Michael J. Blaha, MD, Director of Clinical Research for Ciccarone Center for Prevention of Cardiovascular Disease, Johns Hopkins University, Baltimore, but he called PACMAN-ACS “an extremely relevant study.”

Overwhelming numbers of early puberty cases among girls have been reported during the pandemic, according a report copublished by the Washington Post and The Fuller Project.

Early puberty is uncommon, affecting about 1 in every 5,000 to 10,000 children, with cases about 10 times higher in girls than boys. But since the pandemic started, doctors and parents around the world have noted a substantial surge in early puberty.

In some cases, girls as young as 5 have begun developing breasts and girls younger than 8 have started menstruation.

“I noticed that quite a few of my [girl patients] got their period after a lockdown,” Adiaha Spinks-Franklin, MD, a pediatrician at Texas Children’s Hospital, Houston, told the news outlets.

The condition, also called precocious puberty, is defined as puberty-related changes earlier than normal or expected, which starts around age 8 for girls and age 9 for boys. It can sometimes be caused by genetic syndromes, central nervous system issues, or tumors on the ovaries, adrenal glands, pituitary gland, or brain.

Pediatricians across the world have reported more precocious puberty cases, the news outlets reported, including in the United States, India, Italy, and Turkey.

A recent study found that more than 300 girls were referred to five pediatric endocrinology centers in Italy between March and September 2020, as opposed to 140 referrals during the same time period in 2019.

In another study, a Turkish pediatric endocrinology clinic reported 58 cases during the first year of the pandemic, as compared with 66 total cases during the 3 previous years.

Early puberty tends to mean there are other mental and physical issues, though in most cases, an exact cause can’t be found. Doctors have tied the current uptick to the stress of the pandemic and lockdowns, including reduced physical activity and increased consumption of unhealthy food, which are things linked to a higher risk of early puberty.

“I think it’s directly related to the amount of stress that the children have gone through,” Vaishakhi Rustagi, MD, a pediatric endocrinologist in Delhi, India, told the news outlets.

In a typical year, Dr. Rustagi sees about 20 patients with early puberty. Since mid-2020, she’s seen more than 300 girls with the condition. Imaging scans and ultrasounds haven’t found tumors, and the cause has been mostly unidentifiable, though Dr. Rustagi attributed it to stress and grief.

“These children have lost family members,” she said.

Early puberty is known to increase depression, eating disorders, substance abuse, and antisocial behavior, the news outlets reported.

The main treatment for the condition, a form of hormone therapy known as gonadotropin-releasing hormone analogue therapy, is known to work very well. But some patients and families may not seek treatment because of a lack of awareness or stigmas that come with menstruation.

A version of this article first appeared on WebMD.com.

Overwhelming numbers of early puberty cases among girls have been reported during the pandemic, according a report copublished by the Washington Post and The Fuller Project.

Early puberty is uncommon, affecting about 1 in every 5,000 to 10,000 children, with cases about 10 times higher in girls than boys. But since the pandemic started, doctors and parents around the world have noted a substantial surge in early puberty.

In some cases, girls as young as 5 have begun developing breasts and girls younger than 8 have started menstruation.

“I noticed that quite a few of my [girl patients] got their period after a lockdown,” Adiaha Spinks-Franklin, MD, a pediatrician at Texas Children’s Hospital, Houston, told the news outlets.

The condition, also called precocious puberty, is defined as puberty-related changes earlier than normal or expected, which starts around age 8 for girls and age 9 for boys. It can sometimes be caused by genetic syndromes, central nervous system issues, or tumors on the ovaries, adrenal glands, pituitary gland, or brain.

Pediatricians across the world have reported more precocious puberty cases, the news outlets reported, including in the United States, India, Italy, and Turkey.

A recent study found that more than 300 girls were referred to five pediatric endocrinology centers in Italy between March and September 2020, as opposed to 140 referrals during the same time period in 2019.

In another study, a Turkish pediatric endocrinology clinic reported 58 cases during the first year of the pandemic, as compared with 66 total cases during the 3 previous years.

Early puberty tends to mean there are other mental and physical issues, though in most cases, an exact cause can’t be found. Doctors have tied the current uptick to the stress of the pandemic and lockdowns, including reduced physical activity and increased consumption of unhealthy food, which are things linked to a higher risk of early puberty.

“I think it’s directly related to the amount of stress that the children have gone through,” Vaishakhi Rustagi, MD, a pediatric endocrinologist in Delhi, India, told the news outlets.

In a typical year, Dr. Rustagi sees about 20 patients with early puberty. Since mid-2020, she’s seen more than 300 girls with the condition. Imaging scans and ultrasounds haven’t found tumors, and the cause has been mostly unidentifiable, though Dr. Rustagi attributed it to stress and grief.

“These children have lost family members,” she said.

Early puberty is known to increase depression, eating disorders, substance abuse, and antisocial behavior, the news outlets reported.

The main treatment for the condition, a form of hormone therapy known as gonadotropin-releasing hormone analogue therapy, is known to work very well. But some patients and families may not seek treatment because of a lack of awareness or stigmas that come with menstruation.

A version of this article first appeared on WebMD.com.

Overwhelming numbers of early puberty cases among girls have been reported during the pandemic, according a report copublished by the Washington Post and The Fuller Project.

Early puberty is uncommon, affecting about 1 in every 5,000 to 10,000 children, with cases about 10 times higher in girls than boys. But since the pandemic started, doctors and parents around the world have noted a substantial surge in early puberty.

In some cases, girls as young as 5 have begun developing breasts and girls younger than 8 have started menstruation.

“I noticed that quite a few of my [girl patients] got their period after a lockdown,” Adiaha Spinks-Franklin, MD, a pediatrician at Texas Children’s Hospital, Houston, told the news outlets.

The condition, also called precocious puberty, is defined as puberty-related changes earlier than normal or expected, which starts around age 8 for girls and age 9 for boys. It can sometimes be caused by genetic syndromes, central nervous system issues, or tumors on the ovaries, adrenal glands, pituitary gland, or brain.

Pediatricians across the world have reported more precocious puberty cases, the news outlets reported, including in the United States, India, Italy, and Turkey.

A recent study found that more than 300 girls were referred to five pediatric endocrinology centers in Italy between March and September 2020, as opposed to 140 referrals during the same time period in 2019.

In another study, a Turkish pediatric endocrinology clinic reported 58 cases during the first year of the pandemic, as compared with 66 total cases during the 3 previous years.

Early puberty tends to mean there are other mental and physical issues, though in most cases, an exact cause can’t be found. Doctors have tied the current uptick to the stress of the pandemic and lockdowns, including reduced physical activity and increased consumption of unhealthy food, which are things linked to a higher risk of early puberty.

“I think it’s directly related to the amount of stress that the children have gone through,” Vaishakhi Rustagi, MD, a pediatric endocrinologist in Delhi, India, told the news outlets.

In a typical year, Dr. Rustagi sees about 20 patients with early puberty. Since mid-2020, she’s seen more than 300 girls with the condition. Imaging scans and ultrasounds haven’t found tumors, and the cause has been mostly unidentifiable, though Dr. Rustagi attributed it to stress and grief.

“These children have lost family members,” she said.

Early puberty is known to increase depression, eating disorders, substance abuse, and antisocial behavior, the news outlets reported.

The main treatment for the condition, a form of hormone therapy known as gonadotropin-releasing hormone analogue therapy, is known to work very well. But some patients and families may not seek treatment because of a lack of awareness or stigmas that come with menstruation.

A version of this article first appeared on WebMD.com.

The short interfering RNA (siRNA) agent SLN360 was well tolerated and lowered lipoprotein(a) by up to 98% in volunteers without cardiovascular disease but with elevated Lp(a) in the small dose-ranging APOLLO trial.

Following a single subcutaneous dose of SLN360 (Silence Therapeutics), there was a dose-dependent reduction in Lp(a) plasma levels by a median of 46%, 86%, 96%, and 98% at about 45-60 days with 30-mg, 100-mg, 300-mg, and 600-mg doses, respectively.

Lp(a) levels at 150 days were 70% and 81% below baseline with the 300-and 600-mg doses.

In addition, for participants receiving the two highest doses, apolipoprotein B (apo B) was reduced was 21% and 24%, respectively, and LDL cholesterol (LDL-C), by 21% and 26%, respectively.

“The development of therapies targeting messenger RNA has made possible significant lowering of lipoprotein(a). Whether these reductions can impact on the incidence of ASCVD [atherosclerotic cardiovascular disease] or prevent progression of aortic stenosis remains to be determined but, we think, that optimism is warranted,” said principal investigator Steven E. Nissen, MD, Cleveland Clinic.

The results were presented in a late-breaking clinical trial session at the annual scientific sessions of the American College of Cardiology and published simultaneously in JAMA.

Elevated Lp(a) is a powerful genetic risk factor for ASCVD and aortic stenosis, which affects some 64 million Americans and 1.4 billion people globally. Although several experimental agents are under investigation, no currently approved drugs selectively lower Lp(a).

SLN360 is designed to lower Lp(a) production by using RNA interference to silence messenger RNA transcribed from the LPA gene in liver cells.
 

Testing vacuum

Dr. Nissen said in an interview that one of the big takeaways from the study is the need for greater testing of Lp(a). Automatic assays are available in almost every hospital, but two-unit systems (nmol/L and mg/dL) are used and thresholds for accelerated risk vary. The Cleveland Clinic currently tests all patients in its cardiac critical care unit and its prevention clinic.

“Someone comes in with an MI in their 40s and we measure it and it’s 100, 150 [mg/dL], clearly abnormal, and often these patients don’t have a lot of other risk factors,” Dr. Nissen said. “So the explanation very likely for their premature disease is this risk factor. We now have to educate everybody about the importance of getting it tested and finding out about it.”

During a media briefing, ACC 2022 program cochair Pamela B. Morris, MD, Medical University of South Carolina, Charleston, said testing for Lp(a) is not well reimbursed by insurance providers and that her patients will often cancel the test after learning it won’t be reimbursed because they don’t understand it.

“What Dr. Nissen is telling you: It should be measured in everyone at least once, we all believe that, but it hasn’t made it into the major guidelines,” she added. “I think what we’re going to have to do is have the guidelines mandate it and the insurers will follow.”

Guidelines currently list elevated Lp(a) as a “risk-enhancing factor,” which can help with at least recommending LDL-C treatment in patients with borderline risk and a sky-high Lp(a), noted Dr. Nissen. “But we need to go beyond that.”
 

Safety analyses

The first-in-human APOLLO trial evaluated 32 adults without known ASCVD and an Lp(a) concentration greater than 150 nmol/L (approximately 60 mg/dL) who received one of the four doses of SLN360 or placebo subcutaneously. Participants were monitored in a research unit for the first 24 hours and then followed periodically for up to 150 days. At baseline, their median Lp(a) level was 224 nmol/L, mean apo B level was 85 mg/dL, and mean LDL-C level was 108 mg/dL.

Treatment-emergent adverse events were generally mild, mostly grade 1 injection site reactions (83% at 30 mg, 100% at 100 mg, 67% at 300 mg, and 33% at 600 mg) and headache (33%, 17%, 0%, and 83%).

At the highest dose, C-reactive protein was increased in four patients and neutrophil counts in three. ALT and AST levels were elevated three times above the upper limit of normal in one patient at the lowest dose.

One participant in the lowest-dose group experienced two serious adverse events unrelated to SLN360 at day 45 after receiving a SARS-Co-V-2 vaccine.

Dr. Nissen noted that safety cannot be comprehensively assessed in a trial of this duration or size and that follow-up has been extended to 1 year in the two highest-dose groups.

Enrollment continues in the multiple-ascending dose portion of the study in patients with high Lp(a) and a history of stable ASCVD. A phase 2 study of SLN360 is also planned for the second half of 2022, pending regulatory discussions.
 

But will it reduce ASCVD events?

Study discussant Vera Bittner, MD, MSPH, University of Alabama at Birmingham, said that the development of Lp(a)-specific lowering agents has been a “holy grail” for years and congratulated the authors on a successful trial demonstrating very robust Lp(a) lowering.

She asked Dr. Nissen about the observation in proprotein convertase subtilisin/kexin type 9 inhibitor trials that absolute Lp(a) lowering is greater at higher baseline levels.

Dr. Nissen said this kind of analysis wasn’t possible because of the small sample size but “because these agents so effectively degrade messenger RNA, it’s very likely we will see robust suppression of plasma levels virtually regardless of the baseline level.”

Dr. Bittner also questioned if “LDL-C declined because of the cholesterol content in the lipoprotein(a) or is there some additional effect on LDL particles themselves?”

“It’s a really terrific question that will ultimately need to be answered,” Dr. Nissen replied. “There’s some controversy about the extent to which suppressing lipoprotein(a) will reduce LDL because the assays for LDL are measuring the LDL that’s in lipoprotein(a) and the LDL that is not. ... I think it’s probably a bystander effect, but it may also contribute to efficacy from a morbidity and mortality point of view, which is why we measured it.”

Dr. Bittner also called out the elevation in C-reactive protein and leukocytosis, which has not been seen in other siRNA studies. Dr. Nissen said the increases in C-reactive protein occurred in the first few days after administration and were gone after a week or so. “I don’t see it as a long-term limitation.”

In an accompanying editorial, Brian Ference, MD, MPhil, MSc, University of Cambridge (England), suggests that because circulating Lp(a) particles can progressively become trapped within the artery wall over time, it’s unlikely that lowering Lp(a) for only a few years starting later in life will eliminate the effect of lifelong exposure to Lp(a) and may only cut cardiovascular event risk by about 10%-15%.

He called for continued safety and efficacy evaluation of SLN360 and olpasiran, a similar siRNA agent in early development, and said further insights into whether large absolute reductions in Lp(a) can reduce the risk for major cardiovascular events will come from cardiovascular trials, such as the ongoing phase 3 Lp(a)HORIZON trial. It follows strong phase 2 results with the antisense agent AKCEA-APO(a)-LRx and has Dr. Nissen pulling double duty as study chair.

The study was funded by Silence Therapeutics. Dr. Nissen reported consulting for many pharmaceutical companies, which are directed to pay any renumeration directly to charity. Dr. Bittner reported consultant fees or honoraria from Pfizer; other from AstraZeneca, DalCor, Esperion, and Sanofi-Aventis; and research/research grants from Amgen and Novartis. Dr. Ference reported financial ties to Merck, Novartis, Amgen, Pfizer, Esperion Therapeutics, and numerous other companies.

A version of this article first appeared on Medscape.com.

The short interfering RNA (siRNA) agent SLN360 was well tolerated and lowered lipoprotein(a) by up to 98% in volunteers without cardiovascular disease but with elevated Lp(a) in the small dose-ranging APOLLO trial.

Following a single subcutaneous dose of SLN360 (Silence Therapeutics), there was a dose-dependent reduction in Lp(a) plasma levels by a median of 46%, 86%, 96%, and 98% at about 45-60 days with 30-mg, 100-mg, 300-mg, and 600-mg doses, respectively.

Lp(a) levels at 150 days were 70% and 81% below baseline with the 300-and 600-mg doses.

In addition, for participants receiving the two highest doses, apolipoprotein B (apo B) was reduced was 21% and 24%, respectively, and LDL cholesterol (LDL-C), by 21% and 26%, respectively.

“The development of therapies targeting messenger RNA has made possible significant lowering of lipoprotein(a). Whether these reductions can impact on the incidence of ASCVD [atherosclerotic cardiovascular disease] or prevent progression of aortic stenosis remains to be determined but, we think, that optimism is warranted,” said principal investigator Steven E. Nissen, MD, Cleveland Clinic.

The results were presented in a late-breaking clinical trial session at the annual scientific sessions of the American College of Cardiology and published simultaneously in JAMA.

Elevated Lp(a) is a powerful genetic risk factor for ASCVD and aortic stenosis, which affects some 64 million Americans and 1.4 billion people globally. Although several experimental agents are under investigation, no currently approved drugs selectively lower Lp(a).

SLN360 is designed to lower Lp(a) production by using RNA interference to silence messenger RNA transcribed from the LPA gene in liver cells.
 

Testing vacuum

Dr. Nissen said in an interview that one of the big takeaways from the study is the need for greater testing of Lp(a). Automatic assays are available in almost every hospital, but two-unit systems (nmol/L and mg/dL) are used and thresholds for accelerated risk vary. The Cleveland Clinic currently tests all patients in its cardiac critical care unit and its prevention clinic.

“Someone comes in with an MI in their 40s and we measure it and it’s 100, 150 [mg/dL], clearly abnormal, and often these patients don’t have a lot of other risk factors,” Dr. Nissen said. “So the explanation very likely for their premature disease is this risk factor. We now have to educate everybody about the importance of getting it tested and finding out about it.”

During a media briefing, ACC 2022 program cochair Pamela B. Morris, MD, Medical University of South Carolina, Charleston, said testing for Lp(a) is not well reimbursed by insurance providers and that her patients will often cancel the test after learning it won’t be reimbursed because they don’t understand it.

“What Dr. Nissen is telling you: It should be measured in everyone at least once, we all believe that, but it hasn’t made it into the major guidelines,” she added. “I think what we’re going to have to do is have the guidelines mandate it and the insurers will follow.”

Guidelines currently list elevated Lp(a) as a “risk-enhancing factor,” which can help with at least recommending LDL-C treatment in patients with borderline risk and a sky-high Lp(a), noted Dr. Nissen. “But we need to go beyond that.”
 

Safety analyses

The first-in-human APOLLO trial evaluated 32 adults without known ASCVD and an Lp(a) concentration greater than 150 nmol/L (approximately 60 mg/dL) who received one of the four doses of SLN360 or placebo subcutaneously. Participants were monitored in a research unit for the first 24 hours and then followed periodically for up to 150 days. At baseline, their median Lp(a) level was 224 nmol/L, mean apo B level was 85 mg/dL, and mean LDL-C level was 108 mg/dL.

Treatment-emergent adverse events were generally mild, mostly grade 1 injection site reactions (83% at 30 mg, 100% at 100 mg, 67% at 300 mg, and 33% at 600 mg) and headache (33%, 17%, 0%, and 83%).

At the highest dose, C-reactive protein was increased in four patients and neutrophil counts in three. ALT and AST levels were elevated three times above the upper limit of normal in one patient at the lowest dose.

One participant in the lowest-dose group experienced two serious adverse events unrelated to SLN360 at day 45 after receiving a SARS-Co-V-2 vaccine.

Dr. Nissen noted that safety cannot be comprehensively assessed in a trial of this duration or size and that follow-up has been extended to 1 year in the two highest-dose groups.

Enrollment continues in the multiple-ascending dose portion of the study in patients with high Lp(a) and a history of stable ASCVD. A phase 2 study of SLN360 is also planned for the second half of 2022, pending regulatory discussions.
 

But will it reduce ASCVD events?

Study discussant Vera Bittner, MD, MSPH, University of Alabama at Birmingham, said that the development of Lp(a)-specific lowering agents has been a “holy grail” for years and congratulated the authors on a successful trial demonstrating very robust Lp(a) lowering.

She asked Dr. Nissen about the observation in proprotein convertase subtilisin/kexin type 9 inhibitor trials that absolute Lp(a) lowering is greater at higher baseline levels.

Dr. Nissen said this kind of analysis wasn’t possible because of the small sample size but “because these agents so effectively degrade messenger RNA, it’s very likely we will see robust suppression of plasma levels virtually regardless of the baseline level.”

Dr. Bittner also questioned if “LDL-C declined because of the cholesterol content in the lipoprotein(a) or is there some additional effect on LDL particles themselves?”

“It’s a really terrific question that will ultimately need to be answered,” Dr. Nissen replied. “There’s some controversy about the extent to which suppressing lipoprotein(a) will reduce LDL because the assays for LDL are measuring the LDL that’s in lipoprotein(a) and the LDL that is not. ... I think it’s probably a bystander effect, but it may also contribute to efficacy from a morbidity and mortality point of view, which is why we measured it.”

Dr. Bittner also called out the elevation in C-reactive protein and leukocytosis, which has not been seen in other siRNA studies. Dr. Nissen said the increases in C-reactive protein occurred in the first few days after administration and were gone after a week or so. “I don’t see it as a long-term limitation.”

In an accompanying editorial, Brian Ference, MD, MPhil, MSc, University of Cambridge (England), suggests that because circulating Lp(a) particles can progressively become trapped within the artery wall over time, it’s unlikely that lowering Lp(a) for only a few years starting later in life will eliminate the effect of lifelong exposure to Lp(a) and may only cut cardiovascular event risk by about 10%-15%.

He called for continued safety and efficacy evaluation of SLN360 and olpasiran, a similar siRNA agent in early development, and said further insights into whether large absolute reductions in Lp(a) can reduce the risk for major cardiovascular events will come from cardiovascular trials, such as the ongoing phase 3 Lp(a)HORIZON trial. It follows strong phase 2 results with the antisense agent AKCEA-APO(a)-LRx and has Dr. Nissen pulling double duty as study chair.

The study was funded by Silence Therapeutics. Dr. Nissen reported consulting for many pharmaceutical companies, which are directed to pay any renumeration directly to charity. Dr. Bittner reported consultant fees or honoraria from Pfizer; other from AstraZeneca, DalCor, Esperion, and Sanofi-Aventis; and research/research grants from Amgen and Novartis. Dr. Ference reported financial ties to Merck, Novartis, Amgen, Pfizer, Esperion Therapeutics, and numerous other companies.

A version of this article first appeared on Medscape.com.

The short interfering RNA (siRNA) agent SLN360 was well tolerated and lowered lipoprotein(a) by up to 98% in volunteers without cardiovascular disease but with elevated Lp(a) in the small dose-ranging APOLLO trial.

Following a single subcutaneous dose of SLN360 (Silence Therapeutics), there was a dose-dependent reduction in Lp(a) plasma levels by a median of 46%, 86%, 96%, and 98% at about 45-60 days with 30-mg, 100-mg, 300-mg, and 600-mg doses, respectively.

Lp(a) levels at 150 days were 70% and 81% below baseline with the 300-and 600-mg doses.

In addition, for participants receiving the two highest doses, apolipoprotein B (apo B) was reduced was 21% and 24%, respectively, and LDL cholesterol (LDL-C), by 21% and 26%, respectively.

“The development of therapies targeting messenger RNA has made possible significant lowering of lipoprotein(a). Whether these reductions can impact on the incidence of ASCVD [atherosclerotic cardiovascular disease] or prevent progression of aortic stenosis remains to be determined but, we think, that optimism is warranted,” said principal investigator Steven E. Nissen, MD, Cleveland Clinic.

The results were presented in a late-breaking clinical trial session at the annual scientific sessions of the American College of Cardiology and published simultaneously in JAMA.

Elevated Lp(a) is a powerful genetic risk factor for ASCVD and aortic stenosis, which affects some 64 million Americans and 1.4 billion people globally. Although several experimental agents are under investigation, no currently approved drugs selectively lower Lp(a).

SLN360 is designed to lower Lp(a) production by using RNA interference to silence messenger RNA transcribed from the LPA gene in liver cells.
 

Testing vacuum

Dr. Nissen said in an interview that one of the big takeaways from the study is the need for greater testing of Lp(a). Automatic assays are available in almost every hospital, but two-unit systems (nmol/L and mg/dL) are used and thresholds for accelerated risk vary. The Cleveland Clinic currently tests all patients in its cardiac critical care unit and its prevention clinic.

“Someone comes in with an MI in their 40s and we measure it and it’s 100, 150 [mg/dL], clearly abnormal, and often these patients don’t have a lot of other risk factors,” Dr. Nissen said. “So the explanation very likely for their premature disease is this risk factor. We now have to educate everybody about the importance of getting it tested and finding out about it.”

During a media briefing, ACC 2022 program cochair Pamela B. Morris, MD, Medical University of South Carolina, Charleston, said testing for Lp(a) is not well reimbursed by insurance providers and that her patients will often cancel the test after learning it won’t be reimbursed because they don’t understand it.

“What Dr. Nissen is telling you: It should be measured in everyone at least once, we all believe that, but it hasn’t made it into the major guidelines,” she added. “I think what we’re going to have to do is have the guidelines mandate it and the insurers will follow.”

Guidelines currently list elevated Lp(a) as a “risk-enhancing factor,” which can help with at least recommending LDL-C treatment in patients with borderline risk and a sky-high Lp(a), noted Dr. Nissen. “But we need to go beyond that.”
 

Safety analyses

The first-in-human APOLLO trial evaluated 32 adults without known ASCVD and an Lp(a) concentration greater than 150 nmol/L (approximately 60 mg/dL) who received one of the four doses of SLN360 or placebo subcutaneously. Participants were monitored in a research unit for the first 24 hours and then followed periodically for up to 150 days. At baseline, their median Lp(a) level was 224 nmol/L, mean apo B level was 85 mg/dL, and mean LDL-C level was 108 mg/dL.

Treatment-emergent adverse events were generally mild, mostly grade 1 injection site reactions (83% at 30 mg, 100% at 100 mg, 67% at 300 mg, and 33% at 600 mg) and headache (33%, 17%, 0%, and 83%).

At the highest dose, C-reactive protein was increased in four patients and neutrophil counts in three. ALT and AST levels were elevated three times above the upper limit of normal in one patient at the lowest dose.

One participant in the lowest-dose group experienced two serious adverse events unrelated to SLN360 at day 45 after receiving a SARS-Co-V-2 vaccine.

Dr. Nissen noted that safety cannot be comprehensively assessed in a trial of this duration or size and that follow-up has been extended to 1 year in the two highest-dose groups.

Enrollment continues in the multiple-ascending dose portion of the study in patients with high Lp(a) and a history of stable ASCVD. A phase 2 study of SLN360 is also planned for the second half of 2022, pending regulatory discussions.
 

But will it reduce ASCVD events?

Study discussant Vera Bittner, MD, MSPH, University of Alabama at Birmingham, said that the development of Lp(a)-specific lowering agents has been a “holy grail” for years and congratulated the authors on a successful trial demonstrating very robust Lp(a) lowering.

She asked Dr. Nissen about the observation in proprotein convertase subtilisin/kexin type 9 inhibitor trials that absolute Lp(a) lowering is greater at higher baseline levels.

Dr. Nissen said this kind of analysis wasn’t possible because of the small sample size but “because these agents so effectively degrade messenger RNA, it’s very likely we will see robust suppression of plasma levels virtually regardless of the baseline level.”

Dr. Bittner also questioned if “LDL-C declined because of the cholesterol content in the lipoprotein(a) or is there some additional effect on LDL particles themselves?”

“It’s a really terrific question that will ultimately need to be answered,” Dr. Nissen replied. “There’s some controversy about the extent to which suppressing lipoprotein(a) will reduce LDL because the assays for LDL are measuring the LDL that’s in lipoprotein(a) and the LDL that is not. ... I think it’s probably a bystander effect, but it may also contribute to efficacy from a morbidity and mortality point of view, which is why we measured it.”

Dr. Bittner also called out the elevation in C-reactive protein and leukocytosis, which has not been seen in other siRNA studies. Dr. Nissen said the increases in C-reactive protein occurred in the first few days after administration and were gone after a week or so. “I don’t see it as a long-term limitation.”

In an accompanying editorial, Brian Ference, MD, MPhil, MSc, University of Cambridge (England), suggests that because circulating Lp(a) particles can progressively become trapped within the artery wall over time, it’s unlikely that lowering Lp(a) for only a few years starting later in life will eliminate the effect of lifelong exposure to Lp(a) and may only cut cardiovascular event risk by about 10%-15%.

He called for continued safety and efficacy evaluation of SLN360 and olpasiran, a similar siRNA agent in early development, and said further insights into whether large absolute reductions in Lp(a) can reduce the risk for major cardiovascular events will come from cardiovascular trials, such as the ongoing phase 3 Lp(a)HORIZON trial. It follows strong phase 2 results with the antisense agent AKCEA-APO(a)-LRx and has Dr. Nissen pulling double duty as study chair.

The study was funded by Silence Therapeutics. Dr. Nissen reported consulting for many pharmaceutical companies, which are directed to pay any renumeration directly to charity. Dr. Bittner reported consultant fees or honoraria from Pfizer; other from AstraZeneca, DalCor, Esperion, and Sanofi-Aventis; and research/research grants from Amgen and Novartis. Dr. Ference reported financial ties to Merck, Novartis, Amgen, Pfizer, Esperion Therapeutics, and numerous other companies.

A version of this article first appeared on Medscape.com.

The new heart failure (HF) guidelines released by three North American societies had a lot of catching up to do given the significant, even paradigm-shifting, additions to available treatment options in the last few years.

The landscape now includes both new and repurposed drug therapies that benefit almost without regard to ejection fraction (EF), and evidence-based urgency to engage patients early on with at least four core medication classes, so-called quadruple therapy.

Catherine Hackett/MDedge News

The guideline document offers a roadmap for navigating those key issues and many others and uses some creative tactics. They include the introduction of generalist-friendly labels for the traditional but obscurely named four stages of HF severity that, it is hoped, will have wider reach and expand the use of effective therapies.

It introduces additional disease-staging terminology that characterizes the syndrome as a continuum:  

• “At risk for HF” for stage A, applied to asymptomatic patients with risk factors such as diabetes or hypertension but no known cardiac changes.
• “Pre-HF” for stage B, which adds cardiac structural changes or elevated natriuretic peptides, still in the absence of symptoms.
• “Symptomatic HF” for stage C, that is, structural disease with current or previous symptoms.
• “Advanced HF” for stage D, characterized by severe debilitating symptoms or repeated hospitalizations even with guideline-directed medical therapy (GDMT).

The new terms should be “easier for primary care physicians as well as nonspecialists” to remember and use effectively “and easier to translate to the patients,” compared with the solely alphabetical staging labels appearing in the guidelines for more than 15 years, Biykem Bozkurt, MD, PhD, Baylor College of Medicine, Houston, said in an interview.

An emphasis on “at risk for HF” and “pre-HF” in the new document may help efforts to expand primary prevention of HF and management of preclinical HF. The guideline, Dr. Bozkurt said, includes specific treatment recommendations for those early stages.

The document also updates and sometimes introduces “recommendations for advanced heart failure, acute heart failure, and comorbidities – specifically for atrial fibrillation, iron deficiency, sleep apnea, coronary artery disease, and valvular heart disease,” Dr. Bozkurt observed, as well as for cardiomyopathy and HF related to pregnancy and cancer chemotherapy. “So, it’s a very comprehensive guideline.”

Dr. Bozkurt is vice chair of the guideline writing committee and helped introduce the guideline at the annual scientific sessions of the American College of Cardiology. The document, developed by the ACC, the American Heart Association, and the Heart Failure Society of America, was published April 1, 2022, in the societies’ flagship journals, Journal of the American College of Cardiology, Circulation, and the Journal of Cardiac Failure, respectively. It replaces the 2013 guideline from the ACC and AHA and the ACC/AHA/HFSA–focused update from 2017.

“We really need to treat early, and then we need to treat appropriately,” Douglas L. Mann, MD, Washington University in St. Louis, said in an interview. Dr. Mann, who was not involved in development of the new guideline, said he is “enthusiastic” about the new staging terminology.

“I think it makes it easier to convey the message that these people do need medicines, will benefit from medicines, and in some cases heart failure can be preventable,” he said. “I’m in favor of anything that simplifies it and makes it more readily interpretable by busy doctors who aren’t specialists.”

With the new staging terminology and in other ways, the guideline seems to appreciate cardiomyopathy as a journey from preclinical to advanced symptomatic stages – the preclinical “at-risk” stage tightening focus on primary prevention – and updated thinking on classification of HF by EF.

For example, there is new consideration of “HF with improved ejection fraction” (HFimpEF), which suggests the patient may be evolving from HF with reduced EF (HFrEF) to HF with EF that is preserved or mildly reduced, or vice versa.

With HFimpEF, which identifies patients previously with an EF of 40% or lower that improves to beyond 40% at follow-up testing, patients should continue on the medications they had been previously taking for HFrEF, Dr. Bozkurt said.

Patients at risk for HF, in stage A by the older terminology, are characterized by one or more significant HF risk factors, such as hypertension, diabetes, or coronary disease, as they have been in prior guidelines. But the new document, Dr. Bozkurt observed, adds genetic cardiomyopathies and exposure to cardiotoxic agents to the list.

Perhaps surprisingly, the guideline also includes elevated natriuretic peptides as an indicator of “at risk for HF,” with implications for screening. The evidence suggests that, “for patients who are at risk for heart failure, natriuretic peptide-based screening, followed by team-based care, can prevent development of left ventricular dysfunction in heart failure,” Dr. Bozkurt said.

Persons at risk for HF realistically encompass a huge swath of the population given the world prevalence of high blood pressure, obesity, and diabetes. Management of stage A, therefore, focuses on established tenets of primary cardiovascular prevention, such as weight and BP control, exercise, and healthy dietary choices.

They may well be eligible for treatment with sodium-glucose transporter 2 (SGLT2) inhibitors, which have been “game changers,” Dr. Mann said. “Now you can give them to diabetics and it’s going to prevent heart failure and [cardiovascular] events. We didn’t have a drug like that before, so I think that places a lot of emphasis on aggressive treatment of diabetes.”

For patients with symptomatic HF, the document touts multidisciplinary care and early initiation of drugs from each of four drug classes. Such quadruple therapy includes an SGLT2 inhibitor along with a beta-blocker, a mineralocorticoid receptor antagonist (MRA), and a renin-angiotensin system (RAS) inhibitor: the “core foundational therapies” for patients with HFrEF, Dr. Bozkurt observed.

Of note, she said, the angiotensin receptor–neprilysin inhibitor sacubitril/valsartan (Entresto, Novartis) is the preferred RAS inhibitor. But “if the ARNI cannot be used, then use ACE inhibitors.” If the patient is intolerant of ACE inhibitors because of cough or angioedema, then the choice should be an angiotensin-receptor blocker.

“We have very effective therapies offering survival and morbidity benefits as well as improvements in quality of life and reverse remodeling,” Dr. Bozkurt observed. “The most important message is that optimization of therapies, including all of these medication classes, saves lives.”

The guideline also includes, for the first time, a series of “value statements” on cost-effectiveness of different therapies that assign a “high-value” rating to MRAs, hydralazine, and isosorbide dinitrate in otherwise optimally treated self-identified African Americans, and device therapy in appropriately selected patients. The statements hold SGLT2 inhibitors in chronic symptomatic HF and cardiac transplantation in advanced GDMT-resistant HF to be of “intermediate” value.

The value statements, Dr. Bozkurt noted, “are included throughout the document when there is evidence; when there is a high-quality cost-effectiveness study published.”

Dr. Bozkurt disclosed receiving honoraria or consulting fees from Amgen, AstraZeneca, Baxter International, Bristol-Myers Squibb, Sanofi-Aventis, scPharmaceuticals, and Vifor Pharma; serving on a data safety monitoring board for LivaNova USA; and holding other relationships with Abbott Laboratories and Relypsa. Dr. Mann disclosed receiving honoraria or consulting fees from MyoKardia, Novartis, and Novo Nordisk.

A version of this article first appeared on Medscape.com.

The new heart failure (HF) guidelines released by three North American societies had a lot of catching up to do given the significant, even paradigm-shifting, additions to available treatment options in the last few years.

The landscape now includes both new and repurposed drug therapies that benefit almost without regard to ejection fraction (EF), and evidence-based urgency to engage patients early on with at least four core medication classes, so-called quadruple therapy.

Catherine Hackett/MDedge News

The guideline document offers a roadmap for navigating those key issues and many others and uses some creative tactics. They include the introduction of generalist-friendly labels for the traditional but obscurely named four stages of HF severity that, it is hoped, will have wider reach and expand the use of effective therapies.

It introduces additional disease-staging terminology that characterizes the syndrome as a continuum:  

• “At risk for HF” for stage A, applied to asymptomatic patients with risk factors such as diabetes or hypertension but no known cardiac changes.
• “Pre-HF” for stage B, which adds cardiac structural changes or elevated natriuretic peptides, still in the absence of symptoms.
• “Symptomatic HF” for stage C, that is, structural disease with current or previous symptoms.
• “Advanced HF” for stage D, characterized by severe debilitating symptoms or repeated hospitalizations even with guideline-directed medical therapy (GDMT).

The new terms should be “easier for primary care physicians as well as nonspecialists” to remember and use effectively “and easier to translate to the patients,” compared with the solely alphabetical staging labels appearing in the guidelines for more than 15 years, Biykem Bozkurt, MD, PhD, Baylor College of Medicine, Houston, said in an interview.

An emphasis on “at risk for HF” and “pre-HF” in the new document may help efforts to expand primary prevention of HF and management of preclinical HF. The guideline, Dr. Bozkurt said, includes specific treatment recommendations for those early stages.

The document also updates and sometimes introduces “recommendations for advanced heart failure, acute heart failure, and comorbidities – specifically for atrial fibrillation, iron deficiency, sleep apnea, coronary artery disease, and valvular heart disease,” Dr. Bozkurt observed, as well as for cardiomyopathy and HF related to pregnancy and cancer chemotherapy. “So, it’s a very comprehensive guideline.”

Dr. Bozkurt is vice chair of the guideline writing committee and helped introduce the guideline at the annual scientific sessions of the American College of Cardiology. The document, developed by the ACC, the American Heart Association, and the Heart Failure Society of America, was published April 1, 2022, in the societies’ flagship journals, Journal of the American College of Cardiology, Circulation, and the Journal of Cardiac Failure, respectively. It replaces the 2013 guideline from the ACC and AHA and the ACC/AHA/HFSA–focused update from 2017.

“We really need to treat early, and then we need to treat appropriately,” Douglas L. Mann, MD, Washington University in St. Louis, said in an interview. Dr. Mann, who was not involved in development of the new guideline, said he is “enthusiastic” about the new staging terminology.

“I think it makes it easier to convey the message that these people do need medicines, will benefit from medicines, and in some cases heart failure can be preventable,” he said. “I’m in favor of anything that simplifies it and makes it more readily interpretable by busy doctors who aren’t specialists.”

With the new staging terminology and in other ways, the guideline seems to appreciate cardiomyopathy as a journey from preclinical to advanced symptomatic stages – the preclinical “at-risk” stage tightening focus on primary prevention – and updated thinking on classification of HF by EF.

For example, there is new consideration of “HF with improved ejection fraction” (HFimpEF), which suggests the patient may be evolving from HF with reduced EF (HFrEF) to HF with EF that is preserved or mildly reduced, or vice versa.

With HFimpEF, which identifies patients previously with an EF of 40% or lower that improves to beyond 40% at follow-up testing, patients should continue on the medications they had been previously taking for HFrEF, Dr. Bozkurt said.

Patients at risk for HF, in stage A by the older terminology, are characterized by one or more significant HF risk factors, such as hypertension, diabetes, or coronary disease, as they have been in prior guidelines. But the new document, Dr. Bozkurt observed, adds genetic cardiomyopathies and exposure to cardiotoxic agents to the list.

Perhaps surprisingly, the guideline also includes elevated natriuretic peptides as an indicator of “at risk for HF,” with implications for screening. The evidence suggests that, “for patients who are at risk for heart failure, natriuretic peptide-based screening, followed by team-based care, can prevent development of left ventricular dysfunction in heart failure,” Dr. Bozkurt said.

Persons at risk for HF realistically encompass a huge swath of the population given the world prevalence of high blood pressure, obesity, and diabetes. Management of stage A, therefore, focuses on established tenets of primary cardiovascular prevention, such as weight and BP control, exercise, and healthy dietary choices.

They may well be eligible for treatment with sodium-glucose transporter 2 (SGLT2) inhibitors, which have been “game changers,” Dr. Mann said. “Now you can give them to diabetics and it’s going to prevent heart failure and [cardiovascular] events. We didn’t have a drug like that before, so I think that places a lot of emphasis on aggressive treatment of diabetes.”

For patients with symptomatic HF, the document touts multidisciplinary care and early initiation of drugs from each of four drug classes. Such quadruple therapy includes an SGLT2 inhibitor along with a beta-blocker, a mineralocorticoid receptor antagonist (MRA), and a renin-angiotensin system (RAS) inhibitor: the “core foundational therapies” for patients with HFrEF, Dr. Bozkurt observed.

Of note, she said, the angiotensin receptor–neprilysin inhibitor sacubitril/valsartan (Entresto, Novartis) is the preferred RAS inhibitor. But “if the ARNI cannot be used, then use ACE inhibitors.” If the patient is intolerant of ACE inhibitors because of cough or angioedema, then the choice should be an angiotensin-receptor blocker.

“We have very effective therapies offering survival and morbidity benefits as well as improvements in quality of life and reverse remodeling,” Dr. Bozkurt observed. “The most important message is that optimization of therapies, including all of these medication classes, saves lives.”

The guideline also includes, for the first time, a series of “value statements” on cost-effectiveness of different therapies that assign a “high-value” rating to MRAs, hydralazine, and isosorbide dinitrate in otherwise optimally treated self-identified African Americans, and device therapy in appropriately selected patients. The statements hold SGLT2 inhibitors in chronic symptomatic HF and cardiac transplantation in advanced GDMT-resistant HF to be of “intermediate” value.

The value statements, Dr. Bozkurt noted, “are included throughout the document when there is evidence; when there is a high-quality cost-effectiveness study published.”

Dr. Bozkurt disclosed receiving honoraria or consulting fees from Amgen, AstraZeneca, Baxter International, Bristol-Myers Squibb, Sanofi-Aventis, scPharmaceuticals, and Vifor Pharma; serving on a data safety monitoring board for LivaNova USA; and holding other relationships with Abbott Laboratories and Relypsa. Dr. Mann disclosed receiving honoraria or consulting fees from MyoKardia, Novartis, and Novo Nordisk.

A version of this article first appeared on Medscape.com.

The new heart failure (HF) guidelines released by three North American societies had a lot of catching up to do given the significant, even paradigm-shifting, additions to available treatment options in the last few years.

The landscape now includes both new and repurposed drug therapies that benefit almost without regard to ejection fraction (EF), and evidence-based urgency to engage patients early on with at least four core medication classes, so-called quadruple therapy.

Catherine Hackett/MDedge News

The guideline document offers a roadmap for navigating those key issues and many others and uses some creative tactics. They include the introduction of generalist-friendly labels for the traditional but obscurely named four stages of HF severity that, it is hoped, will have wider reach and expand the use of effective therapies.

It introduces additional disease-staging terminology that characterizes the syndrome as a continuum:  

• “At risk for HF” for stage A, applied to asymptomatic patients with risk factors such as diabetes or hypertension but no known cardiac changes.
• “Pre-HF” for stage B, which adds cardiac structural changes or elevated natriuretic peptides, still in the absence of symptoms.
• “Symptomatic HF” for stage C, that is, structural disease with current or previous symptoms.
• “Advanced HF” for stage D, characterized by severe debilitating symptoms or repeated hospitalizations even with guideline-directed medical therapy (GDMT).

The new terms should be “easier for primary care physicians as well as nonspecialists” to remember and use effectively “and easier to translate to the patients,” compared with the solely alphabetical staging labels appearing in the guidelines for more than 15 years, Biykem Bozkurt, MD, PhD, Baylor College of Medicine, Houston, said in an interview.

An emphasis on “at risk for HF” and “pre-HF” in the new document may help efforts to expand primary prevention of HF and management of preclinical HF. The guideline, Dr. Bozkurt said, includes specific treatment recommendations for those early stages.

The document also updates and sometimes introduces “recommendations for advanced heart failure, acute heart failure, and comorbidities – specifically for atrial fibrillation, iron deficiency, sleep apnea, coronary artery disease, and valvular heart disease,” Dr. Bozkurt observed, as well as for cardiomyopathy and HF related to pregnancy and cancer chemotherapy. “So, it’s a very comprehensive guideline.”

Dr. Bozkurt is vice chair of the guideline writing committee and helped introduce the guideline at the annual scientific sessions of the American College of Cardiology. The document, developed by the ACC, the American Heart Association, and the Heart Failure Society of America, was published April 1, 2022, in the societies’ flagship journals, Journal of the American College of Cardiology, Circulation, and the Journal of Cardiac Failure, respectively. It replaces the 2013 guideline from the ACC and AHA and the ACC/AHA/HFSA–focused update from 2017.

“We really need to treat early, and then we need to treat appropriately,” Douglas L. Mann, MD, Washington University in St. Louis, said in an interview. Dr. Mann, who was not involved in development of the new guideline, said he is “enthusiastic” about the new staging terminology.

“I think it makes it easier to convey the message that these people do need medicines, will benefit from medicines, and in some cases heart failure can be preventable,” he said. “I’m in favor of anything that simplifies it and makes it more readily interpretable by busy doctors who aren’t specialists.”

With the new staging terminology and in other ways, the guideline seems to appreciate cardiomyopathy as a journey from preclinical to advanced symptomatic stages – the preclinical “at-risk” stage tightening focus on primary prevention – and updated thinking on classification of HF by EF.

For example, there is new consideration of “HF with improved ejection fraction” (HFimpEF), which suggests the patient may be evolving from HF with reduced EF (HFrEF) to HF with EF that is preserved or mildly reduced, or vice versa.

With HFimpEF, which identifies patients previously with an EF of 40% or lower that improves to beyond 40% at follow-up testing, patients should continue on the medications they had been previously taking for HFrEF, Dr. Bozkurt said.

Patients at risk for HF, in stage A by the older terminology, are characterized by one or more significant HF risk factors, such as hypertension, diabetes, or coronary disease, as they have been in prior guidelines. But the new document, Dr. Bozkurt observed, adds genetic cardiomyopathies and exposure to cardiotoxic agents to the list.

Perhaps surprisingly, the guideline also includes elevated natriuretic peptides as an indicator of “at risk for HF,” with implications for screening. The evidence suggests that, “for patients who are at risk for heart failure, natriuretic peptide-based screening, followed by team-based care, can prevent development of left ventricular dysfunction in heart failure,” Dr. Bozkurt said.

Persons at risk for HF realistically encompass a huge swath of the population given the world prevalence of high blood pressure, obesity, and diabetes. Management of stage A, therefore, focuses on established tenets of primary cardiovascular prevention, such as weight and BP control, exercise, and healthy dietary choices.

They may well be eligible for treatment with sodium-glucose transporter 2 (SGLT2) inhibitors, which have been “game changers,” Dr. Mann said. “Now you can give them to diabetics and it’s going to prevent heart failure and [cardiovascular] events. We didn’t have a drug like that before, so I think that places a lot of emphasis on aggressive treatment of diabetes.”

For patients with symptomatic HF, the document touts multidisciplinary care and early initiation of drugs from each of four drug classes. Such quadruple therapy includes an SGLT2 inhibitor along with a beta-blocker, a mineralocorticoid receptor antagonist (MRA), and a renin-angiotensin system (RAS) inhibitor: the “core foundational therapies” for patients with HFrEF, Dr. Bozkurt observed.

Of note, she said, the angiotensin receptor–neprilysin inhibitor sacubitril/valsartan (Entresto, Novartis) is the preferred RAS inhibitor. But “if the ARNI cannot be used, then use ACE inhibitors.” If the patient is intolerant of ACE inhibitors because of cough or angioedema, then the choice should be an angiotensin-receptor blocker.

“We have very effective therapies offering survival and morbidity benefits as well as improvements in quality of life and reverse remodeling,” Dr. Bozkurt observed. “The most important message is that optimization of therapies, including all of these medication classes, saves lives.”

The guideline also includes, for the first time, a series of “value statements” on cost-effectiveness of different therapies that assign a “high-value” rating to MRAs, hydralazine, and isosorbide dinitrate in otherwise optimally treated self-identified African Americans, and device therapy in appropriately selected patients. The statements hold SGLT2 inhibitors in chronic symptomatic HF and cardiac transplantation in advanced GDMT-resistant HF to be of “intermediate” value.

The value statements, Dr. Bozkurt noted, “are included throughout the document when there is evidence; when there is a high-quality cost-effectiveness study published.”

Dr. Bozkurt disclosed receiving honoraria or consulting fees from Amgen, AstraZeneca, Baxter International, Bristol-Myers Squibb, Sanofi-Aventis, scPharmaceuticals, and Vifor Pharma; serving on a data safety monitoring board for LivaNova USA; and holding other relationships with Abbott Laboratories and Relypsa. Dr. Mann disclosed receiving honoraria or consulting fees from MyoKardia, Novartis, and Novo Nordisk.

A version of this article first appeared on Medscape.com.

People who received personalized nutrition education in a series of sessions at their regular grocery store significantly improved adherence to a healthy diet, in a new “first-of-its-kind” study in which scientific researchers partnered with a large supermarket company.

In the SuperWIN study, participants were given individualized advice from supermarket-based dietitians using data on their own buying habits recorded on their supermarket loyalty cards. This was associated with an increased adherence to the DASH (Dietary Approaches to Stop Hypertension) diet, which emphasizes vegetables, fruits and whole grains while limiting foods that are high in saturated fat, sugar, and sodium and has been shown to lower blood pressure and LDL cholesterol.

Catherine Hackett/MDedge News

One group of patients also received additional education about healthy eating and meal planning through online technologies, and this group showed even better adherence to the DASH diet.

The study was presented at the annual scientific sessions of the American College of Cardiology by Dylan Steen, MD, adjunct associate professor of medicine at the University of Cincinnati.

“The SuperWIN study provides evidence for the benefit of delivering healthy-eating interventions at modern supermarkets and retail-based clinics,” Dr. Steen said. “It demonstrates the efficacy of dietary interventions harnessing the physical environment of the supermarket, the retail-based dietitians working within the store, and the purchasing data captured on the store’s loyalty cards.”

The study was conducted in partnership with Kroger, the largest supermarket chain in the United States, which also operates a large chain of pharmacies and health clinics.

Dr. Steen said the study was addressing one of the biggest public health problems – unhealthy eating – with an innovative approach. “We need to think about how we can extend the reach of modern health care systems into communities and better deliver services right where people are; meet them where they live,” he said at an ACC press conference.

Commenting on the study at the press conference, Eileen Handberg, PhD, professor of medicine at University of Florida, Gainesville, and immediate past chair of the ACC Cardiovascular Care Team Council, said: “I am amazingly excited about this. There is so much potential here. We have never really taken advantage of the current explosion in retail-based health care before.”

Dr. Handberg suggested the study had major implications for the primary prevention of cardiovascular disease. “Little kids go shopping with their parents, so you have the ability here to change behavior from children on up if you can change the dynamic of the choices they make in the grocery store.”

In his presentation, Dr. Steen noted that, despite many longstanding guidelines on healthy eating, about 75% of Americans still have a poor-quality diet. This trial was conducted to see if a new approach could improve that situation. “If we change the environment in which we deliver dietary education, we can make a difference.”

The SuperWIN trial was conducted in 13 Kroger stores in Ohio and Kentucky. The study enrolled 267 people with at least one cardiovascular risk factor from a primary care network who regularly shopped at one of the study stores. All participants also had to be willing to follow the DASH diet, which was taught at each educational session in the trial.

All participants received one “enhanced” medical nutrition therapy that was guided by the individual’s own dietary intake analytics.

They were then randomly assigned to one of three arms. The control group received no further education. The strategy 1 group received six additional teaching sessions in the supermarket aisles over a 3-month period. Each session was guided by updated individualized purchasing data provided to the dietitian and the participant. 

The strategy 2 group received the same six additional teaching sessions as strategy 1, but they also had some additional teaching on healthy eating and meal planning from a variety of online shopping tools, and nutrition and health care apps.  

“The supermarket analytics were automatically collected so the dietitians could tell what each person liked to eat, how much of each product they were buying and how much they were spending,” Dr. Steen explained.

COVID hit halfway through the trial, and 20 participants were withdrawn for their own safety as they could no longer visit the stores, but the trial continued with the rest of the participants with enhanced safety precautions. The overall analysis cohort was 247 participants.

The average age of the participants was mid-50s, around 70% were female, and most did not have a history of cardiovascular disease.

Eating habits were assessed by three 24-hour dietary recalls assessed at the start of the study and at 3 and 6 months. The DASH score, which is a measure of adherence to the DASH diet, was calculated from this information. The score can range from 0 to 90, with an increased score showing increased adherence.

In one analysis, the researchers compared the DASH scores from the two intervention groups together with the control group, and in a second analysis they compared the scores in the strategy 2 group with those in the strategy 1 group.

Before the pandemic there was “near 100%” attendance for the six visits over the 3-month study period, which Dr. Steen said he thought was “remarkable.” During the pandemic, attendance came down to around 80%.

Results showed that the DASH score increased in all three groups at 3 months, with stepwise increases corresponding to the intensity of the intervention. DASH scores increased by 5.8 points in the control group, by 8.6 points in the strategy 1 group, and by 12.4 points in the strategy 2 group.

DASH scores significantly differed between the two intervention groups and the control group (P = .02). “This shows that purchasing data–guided in-store tours do increase the efficacy of dietary education,” Dr. Steen said.

The difference in scores between the strategy 1 and strategy 2 groups was also significant (P = .01). “This shows online enhancements increase adherence to the DASH diet even further,” Dr. Steen commented

By 6 months, the scores had dropped off a little but were still increased from baseline: by 4.4 points in the control group, 6.6 points in the strategy 1 group, and 8.4 points in the strategy 2 group. “There was again a stepwise increase as the intervention intensified, but there was no longer a significant difference between the interventions and control,” Dr. Steen noted.

Secondary endpoints included blood pressure and body mass index. Systolic blood pressure decreased slightly in all three groups: by 2.8 mm Hg in the control group, 6.6 mm Hg in the strategy 1 group, and 5.7 mm Hg in the strategy 2 group. Body mass index was reduced by 0.2, 0.4 and 0.8, respectively, but the between-group differences were not significant.

Dr. Steen said this is the first study of its kind to date in which scientific researchers collaborated with a large supermarket chain. He explained they also involved a primary care network so that health care utilization information will be available.

“We can the integrate retail-based health care information with traditional health care information. And we can start to look at downstream health care utilization and cost outcomes as well, which will be important as we start to think how to evolve the health care system,” he commented. “The hope is that we can get more scientists working with more retailers to really drive the evidence to shape the evolution of our health care system.”

Challenges ahead

Dr. Handberg pointed out there would be challenges in reaching the underserved population who do not shop at the major supermarkets. “We need to figure out how to get partnerships across the whole spectrum of grocery stores.”

She also noted that 3 months (the duration of the study intervention) was not much time to change the eating habits of a family. “Interventions may have to be a bit more intensive to get the change in blood pressure and weight that we would want to see.”

Dr Handberg hoped the major grocery store companies will see the opportunities in this approach. “Changing behavior is very complicated, and the key will be how to make people stick with the changes. But grocery stores are smart. They have got us going to their pharmacies, so getting us to see a dietitian is not that much of a stretch.”

Moderator of the ACC late-breaker session at which the study was presented, Pamela Morris, MD, from the Medical University of South Carolina, Charleston, who is also ACC annual scientific session chair, asked whether the approach could be sustained.

“I am thinking back to the barber shop study of blood pressure treatment and to my knowledge those PharmDs are no longer in those barbershops, taking blood pressures, counseling patients, and prescribing antihypertensives. So is Kroger maintaining a long-term commitment to providing this education, or how can this be financed over the long term?” she asked.

Dr. Steen replied that he believed sustainability to be one of the key strengths of this model. “Retail-based health care is exploding in the U.S. The number of retail outlets offering a comprehensive list of services is going up all the time. These programs exist regardless of whether this trial was conducted or not.”

But Dr. Steen stressed that having an evidence base will be critically important.

“Validation is an enormous part of this evolution in retail-based health care – not only to figure out what works but also to engage payors and others in the process of supporting these interventions. I think the sustainability is there – it is sort of baked into the model – but research will be a huge part of cementing this in and helping us to understand what we should do.”

The study was funded by Kroger. Dr. Steen is a consultant for Sanofi and CEO and cofounder of High Enroll.

A version of this article first appeared on Medscape.com.

People who received personalized nutrition education in a series of sessions at their regular grocery store significantly improved adherence to a healthy diet, in a new “first-of-its-kind” study in which scientific researchers partnered with a large supermarket company.

In the SuperWIN study, participants were given individualized advice from supermarket-based dietitians using data on their own buying habits recorded on their supermarket loyalty cards. This was associated with an increased adherence to the DASH (Dietary Approaches to Stop Hypertension) diet, which emphasizes vegetables, fruits and whole grains while limiting foods that are high in saturated fat, sugar, and sodium and has been shown to lower blood pressure and LDL cholesterol.

Catherine Hackett/MDedge News

One group of patients also received additional education about healthy eating and meal planning through online technologies, and this group showed even better adherence to the DASH diet.

The study was presented at the annual scientific sessions of the American College of Cardiology by Dylan Steen, MD, adjunct associate professor of medicine at the University of Cincinnati.

“The SuperWIN study provides evidence for the benefit of delivering healthy-eating interventions at modern supermarkets and retail-based clinics,” Dr. Steen said. “It demonstrates the efficacy of dietary interventions harnessing the physical environment of the supermarket, the retail-based dietitians working within the store, and the purchasing data captured on the store’s loyalty cards.”

The study was conducted in partnership with Kroger, the largest supermarket chain in the United States, which also operates a large chain of pharmacies and health clinics.

Dr. Steen said the study was addressing one of the biggest public health problems – unhealthy eating – with an innovative approach. “We need to think about how we can extend the reach of modern health care systems into communities and better deliver services right where people are; meet them where they live,” he said at an ACC press conference.

Commenting on the study at the press conference, Eileen Handberg, PhD, professor of medicine at University of Florida, Gainesville, and immediate past chair of the ACC Cardiovascular Care Team Council, said: “I am amazingly excited about this. There is so much potential here. We have never really taken advantage of the current explosion in retail-based health care before.”

Dr. Handberg suggested the study had major implications for the primary prevention of cardiovascular disease. “Little kids go shopping with their parents, so you have the ability here to change behavior from children on up if you can change the dynamic of the choices they make in the grocery store.”

In his presentation, Dr. Steen noted that, despite many longstanding guidelines on healthy eating, about 75% of Americans still have a poor-quality diet. This trial was conducted to see if a new approach could improve that situation. “If we change the environment in which we deliver dietary education, we can make a difference.”

The SuperWIN trial was conducted in 13 Kroger stores in Ohio and Kentucky. The study enrolled 267 people with at least one cardiovascular risk factor from a primary care network who regularly shopped at one of the study stores. All participants also had to be willing to follow the DASH diet, which was taught at each educational session in the trial.

All participants received one “enhanced” medical nutrition therapy that was guided by the individual’s own dietary intake analytics.

They were then randomly assigned to one of three arms. The control group received no further education. The strategy 1 group received six additional teaching sessions in the supermarket aisles over a 3-month period. Each session was guided by updated individualized purchasing data provided to the dietitian and the participant. 

The strategy 2 group received the same six additional teaching sessions as strategy 1, but they also had some additional teaching on healthy eating and meal planning from a variety of online shopping tools, and nutrition and health care apps.  

“The supermarket analytics were automatically collected so the dietitians could tell what each person liked to eat, how much of each product they were buying and how much they were spending,” Dr. Steen explained.

COVID hit halfway through the trial, and 20 participants were withdrawn for their own safety as they could no longer visit the stores, but the trial continued with the rest of the participants with enhanced safety precautions. The overall analysis cohort was 247 participants.

The average age of the participants was mid-50s, around 70% were female, and most did not have a history of cardiovascular disease.

Eating habits were assessed by three 24-hour dietary recalls assessed at the start of the study and at 3 and 6 months. The DASH score, which is a measure of adherence to the DASH diet, was calculated from this information. The score can range from 0 to 90, with an increased score showing increased adherence.

In one analysis, the researchers compared the DASH scores from the two intervention groups together with the control group, and in a second analysis they compared the scores in the strategy 2 group with those in the strategy 1 group.

Before the pandemic there was “near 100%” attendance for the six visits over the 3-month study period, which Dr. Steen said he thought was “remarkable.” During the pandemic, attendance came down to around 80%.

Results showed that the DASH score increased in all three groups at 3 months, with stepwise increases corresponding to the intensity of the intervention. DASH scores increased by 5.8 points in the control group, by 8.6 points in the strategy 1 group, and by 12.4 points in the strategy 2 group.

DASH scores significantly differed between the two intervention groups and the control group (P = .02). “This shows that purchasing data–guided in-store tours do increase the efficacy of dietary education,” Dr. Steen said.

The difference in scores between the strategy 1 and strategy 2 groups was also significant (P = .01). “This shows online enhancements increase adherence to the DASH diet even further,” Dr. Steen commented

By 6 months, the scores had dropped off a little but were still increased from baseline: by 4.4 points in the control group, 6.6 points in the strategy 1 group, and 8.4 points in the strategy 2 group. “There was again a stepwise increase as the intervention intensified, but there was no longer a significant difference between the interventions and control,” Dr. Steen noted.

Secondary endpoints included blood pressure and body mass index. Systolic blood pressure decreased slightly in all three groups: by 2.8 mm Hg in the control group, 6.6 mm Hg in the strategy 1 group, and 5.7 mm Hg in the strategy 2 group. Body mass index was reduced by 0.2, 0.4 and 0.8, respectively, but the between-group differences were not significant.

Dr. Steen said this is the first study of its kind to date in which scientific researchers collaborated with a large supermarket chain. He explained they also involved a primary care network so that health care utilization information will be available.

“We can the integrate retail-based health care information with traditional health care information. And we can start to look at downstream health care utilization and cost outcomes as well, which will be important as we start to think how to evolve the health care system,” he commented. “The hope is that we can get more scientists working with more retailers to really drive the evidence to shape the evolution of our health care system.”

Challenges ahead

Dr. Handberg pointed out there would be challenges in reaching the underserved population who do not shop at the major supermarkets. “We need to figure out how to get partnerships across the whole spectrum of grocery stores.”

She also noted that 3 months (the duration of the study intervention) was not much time to change the eating habits of a family. “Interventions may have to be a bit more intensive to get the change in blood pressure and weight that we would want to see.”

Dr Handberg hoped the major grocery store companies will see the opportunities in this approach. “Changing behavior is very complicated, and the key will be how to make people stick with the changes. But grocery stores are smart. They have got us going to their pharmacies, so getting us to see a dietitian is not that much of a stretch.”

Moderator of the ACC late-breaker session at which the study was presented, Pamela Morris, MD, from the Medical University of South Carolina, Charleston, who is also ACC annual scientific session chair, asked whether the approach could be sustained.

“I am thinking back to the barber shop study of blood pressure treatment and to my knowledge those PharmDs are no longer in those barbershops, taking blood pressures, counseling patients, and prescribing antihypertensives. So is Kroger maintaining a long-term commitment to providing this education, or how can this be financed over the long term?” she asked.

Dr. Steen replied that he believed sustainability to be one of the key strengths of this model. “Retail-based health care is exploding in the U.S. The number of retail outlets offering a comprehensive list of services is going up all the time. These programs exist regardless of whether this trial was conducted or not.”

But Dr. Steen stressed that having an evidence base will be critically important.

“Validation is an enormous part of this evolution in retail-based health care – not only to figure out what works but also to engage payors and others in the process of supporting these interventions. I think the sustainability is there – it is sort of baked into the model – but research will be a huge part of cementing this in and helping us to understand what we should do.”

The study was funded by Kroger. Dr. Steen is a consultant for Sanofi and CEO and cofounder of High Enroll.

A version of this article first appeared on Medscape.com.

People who received personalized nutrition education in a series of sessions at their regular grocery store significantly improved adherence to a healthy diet, in a new “first-of-its-kind” study in which scientific researchers partnered with a large supermarket company.

In the SuperWIN study, participants were given individualized advice from supermarket-based dietitians using data on their own buying habits recorded on their supermarket loyalty cards. This was associated with an increased adherence to the DASH (Dietary Approaches to Stop Hypertension) diet, which emphasizes vegetables, fruits and whole grains while limiting foods that are high in saturated fat, sugar, and sodium and has been shown to lower blood pressure and LDL cholesterol.

Catherine Hackett/MDedge News

One group of patients also received additional education about healthy eating and meal planning through online technologies, and this group showed even better adherence to the DASH diet.

The study was presented at the annual scientific sessions of the American College of Cardiology by Dylan Steen, MD, adjunct associate professor of medicine at the University of Cincinnati.

“The SuperWIN study provides evidence for the benefit of delivering healthy-eating interventions at modern supermarkets and retail-based clinics,” Dr. Steen said. “It demonstrates the efficacy of dietary interventions harnessing the physical environment of the supermarket, the retail-based dietitians working within the store, and the purchasing data captured on the store’s loyalty cards.”

The study was conducted in partnership with Kroger, the largest supermarket chain in the United States, which also operates a large chain of pharmacies and health clinics.

Dr. Steen said the study was addressing one of the biggest public health problems – unhealthy eating – with an innovative approach. “We need to think about how we can extend the reach of modern health care systems into communities and better deliver services right where people are; meet them where they live,” he said at an ACC press conference.

Commenting on the study at the press conference, Eileen Handberg, PhD, professor of medicine at University of Florida, Gainesville, and immediate past chair of the ACC Cardiovascular Care Team Council, said: “I am amazingly excited about this. There is so much potential here. We have never really taken advantage of the current explosion in retail-based health care before.”

Dr. Handberg suggested the study had major implications for the primary prevention of cardiovascular disease. “Little kids go shopping with their parents, so you have the ability here to change behavior from children on up if you can change the dynamic of the choices they make in the grocery store.”

In his presentation, Dr. Steen noted that, despite many longstanding guidelines on healthy eating, about 75% of Americans still have a poor-quality diet. This trial was conducted to see if a new approach could improve that situation. “If we change the environment in which we deliver dietary education, we can make a difference.”

The SuperWIN trial was conducted in 13 Kroger stores in Ohio and Kentucky. The study enrolled 267 people with at least one cardiovascular risk factor from a primary care network who regularly shopped at one of the study stores. All participants also had to be willing to follow the DASH diet, which was taught at each educational session in the trial.

All participants received one “enhanced” medical nutrition therapy that was guided by the individual’s own dietary intake analytics.

They were then randomly assigned to one of three arms. The control group received no further education. The strategy 1 group received six additional teaching sessions in the supermarket aisles over a 3-month period. Each session was guided by updated individualized purchasing data provided to the dietitian and the participant. 

The strategy 2 group received the same six additional teaching sessions as strategy 1, but they also had some additional teaching on healthy eating and meal planning from a variety of online shopping tools, and nutrition and health care apps.  

“The supermarket analytics were automatically collected so the dietitians could tell what each person liked to eat, how much of each product they were buying and how much they were spending,” Dr. Steen explained.

COVID hit halfway through the trial, and 20 participants were withdrawn for their own safety as they could no longer visit the stores, but the trial continued with the rest of the participants with enhanced safety precautions. The overall analysis cohort was 247 participants.

The average age of the participants was mid-50s, around 70% were female, and most did not have a history of cardiovascular disease.

Eating habits were assessed by three 24-hour dietary recalls assessed at the start of the study and at 3 and 6 months. The DASH score, which is a measure of adherence to the DASH diet, was calculated from this information. The score can range from 0 to 90, with an increased score showing increased adherence.

In one analysis, the researchers compared the DASH scores from the two intervention groups together with the control group, and in a second analysis they compared the scores in the strategy 2 group with those in the strategy 1 group.

Before the pandemic there was “near 100%” attendance for the six visits over the 3-month study period, which Dr. Steen said he thought was “remarkable.” During the pandemic, attendance came down to around 80%.

Results showed that the DASH score increased in all three groups at 3 months, with stepwise increases corresponding to the intensity of the intervention. DASH scores increased by 5.8 points in the control group, by 8.6 points in the strategy 1 group, and by 12.4 points in the strategy 2 group.

DASH scores significantly differed between the two intervention groups and the control group (P = .02). “This shows that purchasing data–guided in-store tours do increase the efficacy of dietary education,” Dr. Steen said.

The difference in scores between the strategy 1 and strategy 2 groups was also significant (P = .01). “This shows online enhancements increase adherence to the DASH diet even further,” Dr. Steen commented

By 6 months, the scores had dropped off a little but were still increased from baseline: by 4.4 points in the control group, 6.6 points in the strategy 1 group, and 8.4 points in the strategy 2 group. “There was again a stepwise increase as the intervention intensified, but there was no longer a significant difference between the interventions and control,” Dr. Steen noted.

Secondary endpoints included blood pressure and body mass index. Systolic blood pressure decreased slightly in all three groups: by 2.8 mm Hg in the control group, 6.6 mm Hg in the strategy 1 group, and 5.7 mm Hg in the strategy 2 group. Body mass index was reduced by 0.2, 0.4 and 0.8, respectively, but the between-group differences were not significant.

Dr. Steen said this is the first study of its kind to date in which scientific researchers collaborated with a large supermarket chain. He explained they also involved a primary care network so that health care utilization information will be available.

“We can the integrate retail-based health care information with traditional health care information. And we can start to look at downstream health care utilization and cost outcomes as well, which will be important as we start to think how to evolve the health care system,” he commented. “The hope is that we can get more scientists working with more retailers to really drive the evidence to shape the evolution of our health care system.”

Challenges ahead

Dr. Handberg pointed out there would be challenges in reaching the underserved population who do not shop at the major supermarkets. “We need to figure out how to get partnerships across the whole spectrum of grocery stores.”

She also noted that 3 months (the duration of the study intervention) was not much time to change the eating habits of a family. “Interventions may have to be a bit more intensive to get the change in blood pressure and weight that we would want to see.”

Dr Handberg hoped the major grocery store companies will see the opportunities in this approach. “Changing behavior is very complicated, and the key will be how to make people stick with the changes. But grocery stores are smart. They have got us going to their pharmacies, so getting us to see a dietitian is not that much of a stretch.”

Moderator of the ACC late-breaker session at which the study was presented, Pamela Morris, MD, from the Medical University of South Carolina, Charleston, who is also ACC annual scientific session chair, asked whether the approach could be sustained.

“I am thinking back to the barber shop study of blood pressure treatment and to my knowledge those PharmDs are no longer in those barbershops, taking blood pressures, counseling patients, and prescribing antihypertensives. So is Kroger maintaining a long-term commitment to providing this education, or how can this be financed over the long term?” she asked.

Dr. Steen replied that he believed sustainability to be one of the key strengths of this model. “Retail-based health care is exploding in the U.S. The number of retail outlets offering a comprehensive list of services is going up all the time. These programs exist regardless of whether this trial was conducted or not.”

But Dr. Steen stressed that having an evidence base will be critically important.

“Validation is an enormous part of this evolution in retail-based health care – not only to figure out what works but also to engage payors and others in the process of supporting these interventions. I think the sustainability is there – it is sort of baked into the model – but research will be a huge part of cementing this in and helping us to understand what we should do.”

The study was funded by Kroger. Dr. Steen is a consultant for Sanofi and CEO and cofounder of High Enroll.

A version of this article first appeared on Medscape.com.

An investigational drug targeting a novel cholesterol pathway has shown disappointing results in the TRANSLATE-TIMI 70 phase 2b study.

Vupanorsen is an antisense oligonucleotide targeting hepatic angiopoietin-like protein 3 (ANGPTL3), a protein that inhibits enzymes involved in the metabolism of triglyceride and cholesterol. Inhibition of ANGPTL3 is one of several novel targets for lowering triglycerides and non-HDL cholesterol.

Results of the TRANSLATE-TIMI 70 study were presented at the annual scientific sessions of the American College of Cardiology by Brian Bergmark, MD, a cardiologist at Brigham and Women’s Hospital, Boston. They were also simultaneously published online in Circulation.

“While vupanorsen significantly reduced triglycerides and non-HDL cholesterol, the reduction in non-HDL cholesterol of 22%-27% was not to a degree that was clinically meaningful for cardiovascular risk reduction, and there were also some potentially important safety issues,” Dr. Bergmark said in an interview.

Pfizer has announced that, after reviewing the results of this study, it is discontinuing development of vupanorsen and will return rights to Ionis, from which it licensed the investigational therapy in 2019.

In response to a question at an ACC press conference on whether there could be any future for the drug, Dr. Bergmark said that “the degree of lipid lowering was not as much as what had been suggested was potentially possible by acting on this pathway, and then there are the additional safety concerns. So, for the specific question of what we were looking at – cardiovascular risk reduction by impacting non-HDL cholesterol and apo [apolipoprotein] B – the modest efficacy paired with the safety concerns does not look favorable for future development of this drug.”

But he added: “Whether some other person or company wants to think about triglyceride lowering and try to find a dose that is a bit safer, that is not for me to say.”

In his ACC presentation, Dr. Bergmark explained that ANGPTL3 is a protein secreted by the liver that inhibits lipases, including lipoprotein lipase. Loss-of-function variants in ANGPTL3 are associated with lower levels of plasma lipids and a monoclonal antibody targeting ANGPTL3, evinacumab (Evkeeza, Regeneron), is approved as an intravenous infusion for the treatment of familial hypercholesterolemia. Vupanorsen is a second-generation antisense oligonucleotide targeting hepatic ANGPTL3 messenger RNA with a potential role for cardiovascular risk reduction.

A previous phase 2a study of vupanorsen in patients with hypertriglyceridemia, hepatic steatosis, and type 2 diabetes mellitus showed significant reductions in triglycerides at all doses studied, as well as reductions in non-HDL cholesterol at the highest doses (80 mg per month given by subcutaneous injection).

Dr. Bergmark noted that, because a potential cardiovascular benefit of vupanorsen would best be reflected by its effects on non-HDL cholesterol, the current TRANSLATE-TIMI 70 trial was designed to assess the effect of escalating doses of vupanorsen on non-HDL cholesterol levels in statin-treated adults with hyperlipidemia.

For the study, 286 adults with non-HDL cholesterol levels of 100 mg/dL or greater (median, 132 mg/dL) and triglyceride levels of 150-500 mg/dL (median, 216 mg/dL) who were receiving statin therapy were randomly assigned to placebo or one of seven vupanorsen dose regimens (80, 120, or 160 mg every 4 weeks or 60, 80, 120, or 160 mg every 2 weeks). All doses were given by subcutaneous injection.

The study population was said to reflect “a typical cohort intended for cardiovascular risk reduction, with type 2 diabetes in approximately one-half of patients and prevalent atherosclerotic cardiovascular disease in a substantial portion,” the researchers wrote in the published report.

The primary endpoint was placebo-adjusted percentage change from baseline in non-HDL cholesterol at 24 weeks. Secondary endpoints included placebo-adjusted percentage changes from baseline in triglycerides, LDL cholesterol, apo B, and ANGPTL3.

Vupanorsen resulted in significant decreases from baseline over placebo in non-HDL cholesterol ranging from 22.0% in the group receiving 60 mg every 2 weeks to 27.7% in the group receiving 80 mg every 2 weeks, but there did not appear to be a dose response.

Regarding additional lipid endpoints, vupanorsen reduced triglyceride levels in a dose-dependent manner, ranging from 41.3% in the group receiving 120 mg every 4 weeks to 56.8% in the group receiving 160 mg every 2 weeks.

The effects of vupanorsen on LDL cholesterol and apo B were more modest and without a clear dose response. Vupanorsen also lowered HDL cholesterol levels at all doses studied, and there was no significant change in high-sensitivity C-reactive protein at any dose.

Liver enzymes and hepatic fat increases of concern

In terms of safety, vupanorsen treatment was linked to liver enzyme elevations; more than three-times elevations of alanine aminotransferase or aspartate aminotransferase were more common at higher total monthly doses (up to 33.3% and 44.4%, respectively). Injection site reactions were also an issue, including recall reactions at sites of previous injections when subsequent injections were given. In addition, there was a dose-related increase (up to 76%) in hepatic fat fraction.

In the Circulation paper, the researchers say it is unclear whether the increases in hepatic fat fraction and liver enzymes reflect a metabolic effect of vupanorsen specifically or an off-target effect resulting from hepatic targeting of ANGPTL3. “Regardless, these are medically meaningful findings with important safety ramifications,” they wrote.

They pointed out that, whereas the reduction in ANGPTL3 levels increased with total monthly dose of vupanorsen, there was no clear dose-response reduction in LDL cholesterol, apo B, or non-HDL cholesterol.

In comparison, evinacumab, a monoclonal antibody against ANGPTL3 that is thought to cause near-total suppression of ANGPTL3 activity, reduces apo B levels by more than 40% in adults with refractory hypercholesterolemia or homozygous familial hypercholesterolemia.

Asked why vupanorsen showed less of an effect on non-HDL cholesterol than evinacumab, Dr. Bergmark suggested that the monoclonal antibody may achieve greater inhibition of ANGPTL3. “It may be that near complete suppression is needed to obtain clinically meaningful reductions in apo B and non-HDL cholesterol. That is a speculative and simplistic explanation,” he commented.

Conversely, reductions in triglycerides with vupanorsen showed a dose-response relationship, mirroring the reduction in ANGPTL3 and consistent with the expected increases in lipoprotein lipase activity, the researchers reported.

They note that the “relatively muted effect on apo B levels” suggests that vupanorsen is primarily decreasing the triglyceride and, to a lesser extent, cholesterol content of very low-density lipoprotein cholesterol particles rather than reducing the number of such particles.

“These observations have important implications for the potential ability of this mechanism to reduce lipid-mediated cardiovascular risk, which largely appears to be a function of the number of ApoB-containing lipoproteins,” they said.

Designated discussant of the study at the ACC late-breaking session, Pradeep Natarajan, MD, director of preventive cardiology at Massachusetts General Hospital in Boston, asked Dr. Bergmark what minimum degree of non-HDL cholesterol reduction would be compelling for a new drug to be considered for wide-scale use.

Dr. Bergmark replied there was no clear to answer to that question, as it would depend on many factors, including the risk of the population and the time horizon involved. But he added: “I think a minimum of at least a 30%-40% reduction in non-HDL cholesterol would be needed for a meaningful reduction in cardiovascular risk across a variety of settings.”

The TRANSLATE-TIMI 70 study was funded by Pfizer. Dr. Bergmark is a member of the TIMI Study Group, which has received institutional grant support through Brigham and Women’s Hospital from numerous pharmaceutical companies. Dr. Bergmark also reported receiving grant support through Brigham and Women’s Hospital from Pfizer, Ionis, AstraZeneca, and Abbott Vascular and consulting/personal fees from Abiomed, CSI, Philips, Abbott Vascular, Servier, DaiichiSankyo, Janssen, and Quark.

A version of this article first appeared on Medscape.com.

An investigational drug targeting a novel cholesterol pathway has shown disappointing results in the TRANSLATE-TIMI 70 phase 2b study.

Vupanorsen is an antisense oligonucleotide targeting hepatic angiopoietin-like protein 3 (ANGPTL3), a protein that inhibits enzymes involved in the metabolism of triglyceride and cholesterol. Inhibition of ANGPTL3 is one of several novel targets for lowering triglycerides and non-HDL cholesterol.

Results of the TRANSLATE-TIMI 70 study were presented at the annual scientific sessions of the American College of Cardiology by Brian Bergmark, MD, a cardiologist at Brigham and Women’s Hospital, Boston. They were also simultaneously published online in Circulation.

“While vupanorsen significantly reduced triglycerides and non-HDL cholesterol, the reduction in non-HDL cholesterol of 22%-27% was not to a degree that was clinically meaningful for cardiovascular risk reduction, and there were also some potentially important safety issues,” Dr. Bergmark said in an interview.

Pfizer has announced that, after reviewing the results of this study, it is discontinuing development of vupanorsen and will return rights to Ionis, from which it licensed the investigational therapy in 2019.

In response to a question at an ACC press conference on whether there could be any future for the drug, Dr. Bergmark said that “the degree of lipid lowering was not as much as what had been suggested was potentially possible by acting on this pathway, and then there are the additional safety concerns. So, for the specific question of what we were looking at – cardiovascular risk reduction by impacting non-HDL cholesterol and apo [apolipoprotein] B – the modest efficacy paired with the safety concerns does not look favorable for future development of this drug.”

But he added: “Whether some other person or company wants to think about triglyceride lowering and try to find a dose that is a bit safer, that is not for me to say.”

In his ACC presentation, Dr. Bergmark explained that ANGPTL3 is a protein secreted by the liver that inhibits lipases, including lipoprotein lipase. Loss-of-function variants in ANGPTL3 are associated with lower levels of plasma lipids and a monoclonal antibody targeting ANGPTL3, evinacumab (Evkeeza, Regeneron), is approved as an intravenous infusion for the treatment of familial hypercholesterolemia. Vupanorsen is a second-generation antisense oligonucleotide targeting hepatic ANGPTL3 messenger RNA with a potential role for cardiovascular risk reduction.

A previous phase 2a study of vupanorsen in patients with hypertriglyceridemia, hepatic steatosis, and type 2 diabetes mellitus showed significant reductions in triglycerides at all doses studied, as well as reductions in non-HDL cholesterol at the highest doses (80 mg per month given by subcutaneous injection).

Dr. Bergmark noted that, because a potential cardiovascular benefit of vupanorsen would best be reflected by its effects on non-HDL cholesterol, the current TRANSLATE-TIMI 70 trial was designed to assess the effect of escalating doses of vupanorsen on non-HDL cholesterol levels in statin-treated adults with hyperlipidemia.

For the study, 286 adults with non-HDL cholesterol levels of 100 mg/dL or greater (median, 132 mg/dL) and triglyceride levels of 150-500 mg/dL (median, 216 mg/dL) who were receiving statin therapy were randomly assigned to placebo or one of seven vupanorsen dose regimens (80, 120, or 160 mg every 4 weeks or 60, 80, 120, or 160 mg every 2 weeks). All doses were given by subcutaneous injection.

The study population was said to reflect “a typical cohort intended for cardiovascular risk reduction, with type 2 diabetes in approximately one-half of patients and prevalent atherosclerotic cardiovascular disease in a substantial portion,” the researchers wrote in the published report.

The primary endpoint was placebo-adjusted percentage change from baseline in non-HDL cholesterol at 24 weeks. Secondary endpoints included placebo-adjusted percentage changes from baseline in triglycerides, LDL cholesterol, apo B, and ANGPTL3.

Vupanorsen resulted in significant decreases from baseline over placebo in non-HDL cholesterol ranging from 22.0% in the group receiving 60 mg every 2 weeks to 27.7% in the group receiving 80 mg every 2 weeks, but there did not appear to be a dose response.

Regarding additional lipid endpoints, vupanorsen reduced triglyceride levels in a dose-dependent manner, ranging from 41.3% in the group receiving 120 mg every 4 weeks to 56.8% in the group receiving 160 mg every 2 weeks.

The effects of vupanorsen on LDL cholesterol and apo B were more modest and without a clear dose response. Vupanorsen also lowered HDL cholesterol levels at all doses studied, and there was no significant change in high-sensitivity C-reactive protein at any dose.

Liver enzymes and hepatic fat increases of concern

In terms of safety, vupanorsen treatment was linked to liver enzyme elevations; more than three-times elevations of alanine aminotransferase or aspartate aminotransferase were more common at higher total monthly doses (up to 33.3% and 44.4%, respectively). Injection site reactions were also an issue, including recall reactions at sites of previous injections when subsequent injections were given. In addition, there was a dose-related increase (up to 76%) in hepatic fat fraction.

In the Circulation paper, the researchers say it is unclear whether the increases in hepatic fat fraction and liver enzymes reflect a metabolic effect of vupanorsen specifically or an off-target effect resulting from hepatic targeting of ANGPTL3. “Regardless, these are medically meaningful findings with important safety ramifications,” they wrote.

They pointed out that, whereas the reduction in ANGPTL3 levels increased with total monthly dose of vupanorsen, there was no clear dose-response reduction in LDL cholesterol, apo B, or non-HDL cholesterol.

In comparison, evinacumab, a monoclonal antibody against ANGPTL3 that is thought to cause near-total suppression of ANGPTL3 activity, reduces apo B levels by more than 40% in adults with refractory hypercholesterolemia or homozygous familial hypercholesterolemia.

Asked why vupanorsen showed less of an effect on non-HDL cholesterol than evinacumab, Dr. Bergmark suggested that the monoclonal antibody may achieve greater inhibition of ANGPTL3. “It may be that near complete suppression is needed to obtain clinically meaningful reductions in apo B and non-HDL cholesterol. That is a speculative and simplistic explanation,” he commented.

Conversely, reductions in triglycerides with vupanorsen showed a dose-response relationship, mirroring the reduction in ANGPTL3 and consistent with the expected increases in lipoprotein lipase activity, the researchers reported.

They note that the “relatively muted effect on apo B levels” suggests that vupanorsen is primarily decreasing the triglyceride and, to a lesser extent, cholesterol content of very low-density lipoprotein cholesterol particles rather than reducing the number of such particles.

“These observations have important implications for the potential ability of this mechanism to reduce lipid-mediated cardiovascular risk, which largely appears to be a function of the number of ApoB-containing lipoproteins,” they said.

Designated discussant of the study at the ACC late-breaking session, Pradeep Natarajan, MD, director of preventive cardiology at Massachusetts General Hospital in Boston, asked Dr. Bergmark what minimum degree of non-HDL cholesterol reduction would be compelling for a new drug to be considered for wide-scale use.

Dr. Bergmark replied there was no clear to answer to that question, as it would depend on many factors, including the risk of the population and the time horizon involved. But he added: “I think a minimum of at least a 30%-40% reduction in non-HDL cholesterol would be needed for a meaningful reduction in cardiovascular risk across a variety of settings.”

The TRANSLATE-TIMI 70 study was funded by Pfizer. Dr. Bergmark is a member of the TIMI Study Group, which has received institutional grant support through Brigham and Women’s Hospital from numerous pharmaceutical companies. Dr. Bergmark also reported receiving grant support through Brigham and Women’s Hospital from Pfizer, Ionis, AstraZeneca, and Abbott Vascular and consulting/personal fees from Abiomed, CSI, Philips, Abbott Vascular, Servier, DaiichiSankyo, Janssen, and Quark.

A version of this article first appeared on Medscape.com.

An investigational drug targeting a novel cholesterol pathway has shown disappointing results in the TRANSLATE-TIMI 70 phase 2b study.

Vupanorsen is an antisense oligonucleotide targeting hepatic angiopoietin-like protein 3 (ANGPTL3), a protein that inhibits enzymes involved in the metabolism of triglyceride and cholesterol. Inhibition of ANGPTL3 is one of several novel targets for lowering triglycerides and non-HDL cholesterol.

Results of the TRANSLATE-TIMI 70 study were presented at the annual scientific sessions of the American College of Cardiology by Brian Bergmark, MD, a cardiologist at Brigham and Women’s Hospital, Boston. They were also simultaneously published online in Circulation.

“While vupanorsen significantly reduced triglycerides and non-HDL cholesterol, the reduction in non-HDL cholesterol of 22%-27% was not to a degree that was clinically meaningful for cardiovascular risk reduction, and there were also some potentially important safety issues,” Dr. Bergmark said in an interview.

Pfizer has announced that, after reviewing the results of this study, it is discontinuing development of vupanorsen and will return rights to Ionis, from which it licensed the investigational therapy in 2019.

In response to a question at an ACC press conference on whether there could be any future for the drug, Dr. Bergmark said that “the degree of lipid lowering was not as much as what had been suggested was potentially possible by acting on this pathway, and then there are the additional safety concerns. So, for the specific question of what we were looking at – cardiovascular risk reduction by impacting non-HDL cholesterol and apo [apolipoprotein] B – the modest efficacy paired with the safety concerns does not look favorable for future development of this drug.”

But he added: “Whether some other person or company wants to think about triglyceride lowering and try to find a dose that is a bit safer, that is not for me to say.”

In his ACC presentation, Dr. Bergmark explained that ANGPTL3 is a protein secreted by the liver that inhibits lipases, including lipoprotein lipase. Loss-of-function variants in ANGPTL3 are associated with lower levels of plasma lipids and a monoclonal antibody targeting ANGPTL3, evinacumab (Evkeeza, Regeneron), is approved as an intravenous infusion for the treatment of familial hypercholesterolemia. Vupanorsen is a second-generation antisense oligonucleotide targeting hepatic ANGPTL3 messenger RNA with a potential role for cardiovascular risk reduction.

A previous phase 2a study of vupanorsen in patients with hypertriglyceridemia, hepatic steatosis, and type 2 diabetes mellitus showed significant reductions in triglycerides at all doses studied, as well as reductions in non-HDL cholesterol at the highest doses (80 mg per month given by subcutaneous injection).

Dr. Bergmark noted that, because a potential cardiovascular benefit of vupanorsen would best be reflected by its effects on non-HDL cholesterol, the current TRANSLATE-TIMI 70 trial was designed to assess the effect of escalating doses of vupanorsen on non-HDL cholesterol levels in statin-treated adults with hyperlipidemia.

For the study, 286 adults with non-HDL cholesterol levels of 100 mg/dL or greater (median, 132 mg/dL) and triglyceride levels of 150-500 mg/dL (median, 216 mg/dL) who were receiving statin therapy were randomly assigned to placebo or one of seven vupanorsen dose regimens (80, 120, or 160 mg every 4 weeks or 60, 80, 120, or 160 mg every 2 weeks). All doses were given by subcutaneous injection.

The study population was said to reflect “a typical cohort intended for cardiovascular risk reduction, with type 2 diabetes in approximately one-half of patients and prevalent atherosclerotic cardiovascular disease in a substantial portion,” the researchers wrote in the published report.

The primary endpoint was placebo-adjusted percentage change from baseline in non-HDL cholesterol at 24 weeks. Secondary endpoints included placebo-adjusted percentage changes from baseline in triglycerides, LDL cholesterol, apo B, and ANGPTL3.

Vupanorsen resulted in significant decreases from baseline over placebo in non-HDL cholesterol ranging from 22.0% in the group receiving 60 mg every 2 weeks to 27.7% in the group receiving 80 mg every 2 weeks, but there did not appear to be a dose response.

Regarding additional lipid endpoints, vupanorsen reduced triglyceride levels in a dose-dependent manner, ranging from 41.3% in the group receiving 120 mg every 4 weeks to 56.8% in the group receiving 160 mg every 2 weeks.

The effects of vupanorsen on LDL cholesterol and apo B were more modest and without a clear dose response. Vupanorsen also lowered HDL cholesterol levels at all doses studied, and there was no significant change in high-sensitivity C-reactive protein at any dose.

Liver enzymes and hepatic fat increases of concern

In terms of safety, vupanorsen treatment was linked to liver enzyme elevations; more than three-times elevations of alanine aminotransferase or aspartate aminotransferase were more common at higher total monthly doses (up to 33.3% and 44.4%, respectively). Injection site reactions were also an issue, including recall reactions at sites of previous injections when subsequent injections were given. In addition, there was a dose-related increase (up to 76%) in hepatic fat fraction.

In the Circulation paper, the researchers say it is unclear whether the increases in hepatic fat fraction and liver enzymes reflect a metabolic effect of vupanorsen specifically or an off-target effect resulting from hepatic targeting of ANGPTL3. “Regardless, these are medically meaningful findings with important safety ramifications,” they wrote.

They pointed out that, whereas the reduction in ANGPTL3 levels increased with total monthly dose of vupanorsen, there was no clear dose-response reduction in LDL cholesterol, apo B, or non-HDL cholesterol.

In comparison, evinacumab, a monoclonal antibody against ANGPTL3 that is thought to cause near-total suppression of ANGPTL3 activity, reduces apo B levels by more than 40% in adults with refractory hypercholesterolemia or homozygous familial hypercholesterolemia.

Asked why vupanorsen showed less of an effect on non-HDL cholesterol than evinacumab, Dr. Bergmark suggested that the monoclonal antibody may achieve greater inhibition of ANGPTL3. “It may be that near complete suppression is needed to obtain clinically meaningful reductions in apo B and non-HDL cholesterol. That is a speculative and simplistic explanation,” he commented.

Conversely, reductions in triglycerides with vupanorsen showed a dose-response relationship, mirroring the reduction in ANGPTL3 and consistent with the expected increases in lipoprotein lipase activity, the researchers reported.

They note that the “relatively muted effect on apo B levels” suggests that vupanorsen is primarily decreasing the triglyceride and, to a lesser extent, cholesterol content of very low-density lipoprotein cholesterol particles rather than reducing the number of such particles.

“These observations have important implications for the potential ability of this mechanism to reduce lipid-mediated cardiovascular risk, which largely appears to be a function of the number of ApoB-containing lipoproteins,” they said.

Designated discussant of the study at the ACC late-breaking session, Pradeep Natarajan, MD, director of preventive cardiology at Massachusetts General Hospital in Boston, asked Dr. Bergmark what minimum degree of non-HDL cholesterol reduction would be compelling for a new drug to be considered for wide-scale use.

Dr. Bergmark replied there was no clear to answer to that question, as it would depend on many factors, including the risk of the population and the time horizon involved. But he added: “I think a minimum of at least a 30%-40% reduction in non-HDL cholesterol would be needed for a meaningful reduction in cardiovascular risk across a variety of settings.”

The TRANSLATE-TIMI 70 study was funded by Pfizer. Dr. Bergmark is a member of the TIMI Study Group, which has received institutional grant support through Brigham and Women’s Hospital from numerous pharmaceutical companies. Dr. Bergmark also reported receiving grant support through Brigham and Women’s Hospital from Pfizer, Ionis, AstraZeneca, and Abbott Vascular and consulting/personal fees from Abiomed, CSI, Philips, Abbott Vascular, Servier, DaiichiSankyo, Janssen, and Quark.

A version of this article first appeared on Medscape.com.

In a randomized trial of patients with angina and no obstructive coronary artery disease (ANOCA), 6 weeks of treatment with diltiazem did not improve coronary vasomotor dysfunction – apart from epicardial spasm – or angina symptoms and quality of life. 

The trial investigated whether this therapy would improve these outcomes in patients with two mutually exclusive subgroups, or endotypes, of coronary vasomotor dysfunction: coronary artery spasm (epicardial spasm, microvascular spasm) or coronary microvascular dysfunction indicated by coronary flow reserve (CFR) and index of microvascular resistance (IMR) values.

Treatment success, the primary study endpoint – defined as normalization of one of the abnormal endotypes and no normal endotype becoming abnormal – was similar after treatment with diltiazem, compared with placebo. Nor were there significant differences for secondary endpoints apart from improvements in epicardial spasm in the two groups.

Tijn Jansen, MD, presented these findings from the EDIT-CMD trial in a featured clinical research session at the annual scientific sessions of the American College of Cardiology. The study was simultaneously published online April 2, 2022, in JACC: Cardiovascular Imaging.

“This first study using repeated coronary function testing provides a platform for future research,” concluded Dr. Jansen, a PhD candidate in the department of cardiology, Radboud University, Nijmegen, the Netherlands.

“We were surprised indeed” that diltiazem did not meet its primary endpoint for successful treatment and did not reduce symptoms or improve quality of life, compared with placebo, unlike results of the CorMicA trial, he said in an interview.

“We did find a treatment success, however, of 21%, which was slightly lower than expected, but it was not better than just giving placebo. This was similar regarding symptoms and quality of life, where we did find an overall improvement with diltiazem, but again not higher than using placebo,” he added. “It seems that giving the diagnosis to these patients itself creates a reduction in symptoms,” that might be caused by a reduction in stress, Dr. Jansen suggested.

The clinical implication, he said, is that more randomized controlled trials in this patient population are needed to permit evidence-based patient-tailored treatment, based on the different endotypes. “It might even be imaginable to test effectiveness in each individual patient using coronary function testing,” he said.

These tests are more and more commonly used in clinical practice, Dr. Jansen noted. “In the Netherlands, we recently launched the NL-CFT registry, which enables the participating centers to perform the CFT with a standardized protocol, with the goal to collect data and increase knowledge in this patient population.”

Heterogeneous population?

“I think probably the reason this trial was negative is [that coronary vasomotor dysfunction is] just too heterogeneous,” assigned discussant, C. Noel Bairey Merz, MD, commented.

First RCT of diltiazem in patients with ANOCA

Up to 40% of patients undergoing coronary angiography for stable angina do not have obstructive coronary artery disease (CAD), and 60%-90% of these patients have coronary vasomotor dysfunction, Dr. Jansen noted.

The landmark CorMicA trial showed that diagnosing the specific endotype of coronary vasomotor dysfunction using coronary function testing allows for tailored medication that decreased angina and improved quality of life, the researchers noted.

A recent European Society of Cardiology position paper on ANOCA “recommends the use of various pharmacological treatments including calcium-channel blockers, beta-blockers, ACE inhibitors, statins, and nitric oxide modulators, of which CCBs have the most prominent role in both endotypes of coronary vasospasms” and coronary microvascular dysfunction, they wrote.

“However, evidence substantiating these recommendations is lacking,” the researchers added, “since it is based on studies in a different population, with small sample sizes, or not placebo controlled.”

To investigate this, between 2019 and 2021, EDIT-CMD enrolled 126 adults aged 18 years and older who had two or more chronic angina episodes per week and no signs of obstructive CAD, who were seen at three hospitals specializing in ANOCA in the Netherlands.

The participants underwent coronary function testing that consisted of an acetylcholine spasm provocation test to evaluate for epicardial spasm and microvascular spasm, and a bolus thermodilution test with adenosine, to assess CFR and IMR. Coronary microvascular dysfunction was defined as CFR less than 2.0 and IMR of 25 or greater.

Of 99 patients with vasospasm or microvascular dysfunction, 85 patients were randomly assigned to receive diltiazem (n = 41) or placebo (n = 44) for 6 weeks.

The patients in both groups had a mean age of 58 years, and 29% were male; 22% had previously undergone percutaneous coronary intervention, and 48% had severe angina (Canadian Cardiovascular Society grade III/IV).

At baseline, about 50% had epicardial spasm, 25% had microvascular spasm and 25% had no spasm, and 54% in the diltiazem group and 73% in the placebo group had microvascular dysfunction.

After 6 weeks, 73 patients (35 in the placebo group and 38 in the diltiazem group) were available for repeat coronary function testing.

For the primary outcome, after 6 weeks of treatment, the proportion of patients with normalization of one abnormal parameter of coronary vasomotor dysfunction, without any normal parameter becoming abnormal, occurred in 8 patients (21%) in the diltiazem group versus 10 patients (29%) in the placebo group (P = .46)

In secondary outcomes, after 6 weeks of treatment, there were no significant differences in the prevalence of microvascular dysfunction, in Seattle Angina Questionnaire scores for angina symptoms, or RAND-36 scores for quality of life between patients who received diltiazem vs those who received placebo.

However, more patients in the diltiazem group than in the placebo group progressed from epicardial spasm to microvascular or no spasm (47% vs. 6%; P = .006).

The EDIT-CMD trial was sponsored by Abbott. Dr. Jansen has no relevant financial disclosures. Dr. Bairey Merz discloses having a fiduciary role and shares in iRhythm and being on the advisory board for Sanofi.

A version of this article first appeared on Medscape.com.

In a randomized trial of patients with angina and no obstructive coronary artery disease (ANOCA), 6 weeks of treatment with diltiazem did not improve coronary vasomotor dysfunction – apart from epicardial spasm – or angina symptoms and quality of life. 

The trial investigated whether this therapy would improve these outcomes in patients with two mutually exclusive subgroups, or endotypes, of coronary vasomotor dysfunction: coronary artery spasm (epicardial spasm, microvascular spasm) or coronary microvascular dysfunction indicated by coronary flow reserve (CFR) and index of microvascular resistance (IMR) values.

Treatment success, the primary study endpoint – defined as normalization of one of the abnormal endotypes and no normal endotype becoming abnormal – was similar after treatment with diltiazem, compared with placebo. Nor were there significant differences for secondary endpoints apart from improvements in epicardial spasm in the two groups.

Tijn Jansen, MD, presented these findings from the EDIT-CMD trial in a featured clinical research session at the annual scientific sessions of the American College of Cardiology. The study was simultaneously published online April 2, 2022, in JACC: Cardiovascular Imaging.

“This first study using repeated coronary function testing provides a platform for future research,” concluded Dr. Jansen, a PhD candidate in the department of cardiology, Radboud University, Nijmegen, the Netherlands.

“We were surprised indeed” that diltiazem did not meet its primary endpoint for successful treatment and did not reduce symptoms or improve quality of life, compared with placebo, unlike results of the CorMicA trial, he said in an interview.

“We did find a treatment success, however, of 21%, which was slightly lower than expected, but it was not better than just giving placebo. This was similar regarding symptoms and quality of life, where we did find an overall improvement with diltiazem, but again not higher than using placebo,” he added. “It seems that giving the diagnosis to these patients itself creates a reduction in symptoms,” that might be caused by a reduction in stress, Dr. Jansen suggested.

The clinical implication, he said, is that more randomized controlled trials in this patient population are needed to permit evidence-based patient-tailored treatment, based on the different endotypes. “It might even be imaginable to test effectiveness in each individual patient using coronary function testing,” he said.

These tests are more and more commonly used in clinical practice, Dr. Jansen noted. “In the Netherlands, we recently launched the NL-CFT registry, which enables the participating centers to perform the CFT with a standardized protocol, with the goal to collect data and increase knowledge in this patient population.”

Heterogeneous population?

“I think probably the reason this trial was negative is [that coronary vasomotor dysfunction is] just too heterogeneous,” assigned discussant, C. Noel Bairey Merz, MD, commented.

First RCT of diltiazem in patients with ANOCA

Up to 40% of patients undergoing coronary angiography for stable angina do not have obstructive coronary artery disease (CAD), and 60%-90% of these patients have coronary vasomotor dysfunction, Dr. Jansen noted.

The landmark CorMicA trial showed that diagnosing the specific endotype of coronary vasomotor dysfunction using coronary function testing allows for tailored medication that decreased angina and improved quality of life, the researchers noted.

A recent European Society of Cardiology position paper on ANOCA “recommends the use of various pharmacological treatments including calcium-channel blockers, beta-blockers, ACE inhibitors, statins, and nitric oxide modulators, of which CCBs have the most prominent role in both endotypes of coronary vasospasms” and coronary microvascular dysfunction, they wrote.

“However, evidence substantiating these recommendations is lacking,” the researchers added, “since it is based on studies in a different population, with small sample sizes, or not placebo controlled.”

To investigate this, between 2019 and 2021, EDIT-CMD enrolled 126 adults aged 18 years and older who had two or more chronic angina episodes per week and no signs of obstructive CAD, who were seen at three hospitals specializing in ANOCA in the Netherlands.

The participants underwent coronary function testing that consisted of an acetylcholine spasm provocation test to evaluate for epicardial spasm and microvascular spasm, and a bolus thermodilution test with adenosine, to assess CFR and IMR. Coronary microvascular dysfunction was defined as CFR less than 2.0 and IMR of 25 or greater.

Of 99 patients with vasospasm or microvascular dysfunction, 85 patients were randomly assigned to receive diltiazem (n = 41) or placebo (n = 44) for 6 weeks.

The patients in both groups had a mean age of 58 years, and 29% were male; 22% had previously undergone percutaneous coronary intervention, and 48% had severe angina (Canadian Cardiovascular Society grade III/IV).

At baseline, about 50% had epicardial spasm, 25% had microvascular spasm and 25% had no spasm, and 54% in the diltiazem group and 73% in the placebo group had microvascular dysfunction.

After 6 weeks, 73 patients (35 in the placebo group and 38 in the diltiazem group) were available for repeat coronary function testing.

For the primary outcome, after 6 weeks of treatment, the proportion of patients with normalization of one abnormal parameter of coronary vasomotor dysfunction, without any normal parameter becoming abnormal, occurred in 8 patients (21%) in the diltiazem group versus 10 patients (29%) in the placebo group (P = .46)

In secondary outcomes, after 6 weeks of treatment, there were no significant differences in the prevalence of microvascular dysfunction, in Seattle Angina Questionnaire scores for angina symptoms, or RAND-36 scores for quality of life between patients who received diltiazem vs those who received placebo.

However, more patients in the diltiazem group than in the placebo group progressed from epicardial spasm to microvascular or no spasm (47% vs. 6%; P = .006).

The EDIT-CMD trial was sponsored by Abbott. Dr. Jansen has no relevant financial disclosures. Dr. Bairey Merz discloses having a fiduciary role and shares in iRhythm and being on the advisory board for Sanofi.

A version of this article first appeared on Medscape.com.

In a randomized trial of patients with angina and no obstructive coronary artery disease (ANOCA), 6 weeks of treatment with diltiazem did not improve coronary vasomotor dysfunction – apart from epicardial spasm – or angina symptoms and quality of life. 

The trial investigated whether this therapy would improve these outcomes in patients with two mutually exclusive subgroups, or endotypes, of coronary vasomotor dysfunction: coronary artery spasm (epicardial spasm, microvascular spasm) or coronary microvascular dysfunction indicated by coronary flow reserve (CFR) and index of microvascular resistance (IMR) values.

Treatment success, the primary study endpoint – defined as normalization of one of the abnormal endotypes and no normal endotype becoming abnormal – was similar after treatment with diltiazem, compared with placebo. Nor were there significant differences for secondary endpoints apart from improvements in epicardial spasm in the two groups.

Tijn Jansen, MD, presented these findings from the EDIT-CMD trial in a featured clinical research session at the annual scientific sessions of the American College of Cardiology. The study was simultaneously published online April 2, 2022, in JACC: Cardiovascular Imaging.

“This first study using repeated coronary function testing provides a platform for future research,” concluded Dr. Jansen, a PhD candidate in the department of cardiology, Radboud University, Nijmegen, the Netherlands.

“We were surprised indeed” that diltiazem did not meet its primary endpoint for successful treatment and did not reduce symptoms or improve quality of life, compared with placebo, unlike results of the CorMicA trial, he said in an interview.

“We did find a treatment success, however, of 21%, which was slightly lower than expected, but it was not better than just giving placebo. This was similar regarding symptoms and quality of life, where we did find an overall improvement with diltiazem, but again not higher than using placebo,” he added. “It seems that giving the diagnosis to these patients itself creates a reduction in symptoms,” that might be caused by a reduction in stress, Dr. Jansen suggested.

The clinical implication, he said, is that more randomized controlled trials in this patient population are needed to permit evidence-based patient-tailored treatment, based on the different endotypes. “It might even be imaginable to test effectiveness in each individual patient using coronary function testing,” he said.

These tests are more and more commonly used in clinical practice, Dr. Jansen noted. “In the Netherlands, we recently launched the NL-CFT registry, which enables the participating centers to perform the CFT with a standardized protocol, with the goal to collect data and increase knowledge in this patient population.”

Heterogeneous population?

“I think probably the reason this trial was negative is [that coronary vasomotor dysfunction is] just too heterogeneous,” assigned discussant, C. Noel Bairey Merz, MD, commented.

First RCT of diltiazem in patients with ANOCA

Up to 40% of patients undergoing coronary angiography for stable angina do not have obstructive coronary artery disease (CAD), and 60%-90% of these patients have coronary vasomotor dysfunction, Dr. Jansen noted.

The landmark CorMicA trial showed that diagnosing the specific endotype of coronary vasomotor dysfunction using coronary function testing allows for tailored medication that decreased angina and improved quality of life, the researchers noted.

A recent European Society of Cardiology position paper on ANOCA “recommends the use of various pharmacological treatments including calcium-channel blockers, beta-blockers, ACE inhibitors, statins, and nitric oxide modulators, of which CCBs have the most prominent role in both endotypes of coronary vasospasms” and coronary microvascular dysfunction, they wrote.

“However, evidence substantiating these recommendations is lacking,” the researchers added, “since it is based on studies in a different population, with small sample sizes, or not placebo controlled.”

To investigate this, between 2019 and 2021, EDIT-CMD enrolled 126 adults aged 18 years and older who had two or more chronic angina episodes per week and no signs of obstructive CAD, who were seen at three hospitals specializing in ANOCA in the Netherlands.

The participants underwent coronary function testing that consisted of an acetylcholine spasm provocation test to evaluate for epicardial spasm and microvascular spasm, and a bolus thermodilution test with adenosine, to assess CFR and IMR. Coronary microvascular dysfunction was defined as CFR less than 2.0 and IMR of 25 or greater.

Of 99 patients with vasospasm or microvascular dysfunction, 85 patients were randomly assigned to receive diltiazem (n = 41) or placebo (n = 44) for 6 weeks.

The patients in both groups had a mean age of 58 years, and 29% were male; 22% had previously undergone percutaneous coronary intervention, and 48% had severe angina (Canadian Cardiovascular Society grade III/IV).

At baseline, about 50% had epicardial spasm, 25% had microvascular spasm and 25% had no spasm, and 54% in the diltiazem group and 73% in the placebo group had microvascular dysfunction.

After 6 weeks, 73 patients (35 in the placebo group and 38 in the diltiazem group) were available for repeat coronary function testing.

For the primary outcome, after 6 weeks of treatment, the proportion of patients with normalization of one abnormal parameter of coronary vasomotor dysfunction, without any normal parameter becoming abnormal, occurred in 8 patients (21%) in the diltiazem group versus 10 patients (29%) in the placebo group (P = .46)

In secondary outcomes, after 6 weeks of treatment, there were no significant differences in the prevalence of microvascular dysfunction, in Seattle Angina Questionnaire scores for angina symptoms, or RAND-36 scores for quality of life between patients who received diltiazem vs those who received placebo.

However, more patients in the diltiazem group than in the placebo group progressed from epicardial spasm to microvascular or no spasm (47% vs. 6%; P = .006).

The EDIT-CMD trial was sponsored by Abbott. Dr. Jansen has no relevant financial disclosures. Dr. Bairey Merz discloses having a fiduciary role and shares in iRhythm and being on the advisory board for Sanofi.

A version of this article first appeared on Medscape.com.