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FDA approves first RSV vaccine for older adults
Every year, RSV is responsible for 60,000–120,000 hospitalizations and 6,000–10,000 deaths among U.S. adults older than age, according to the FDA. Older adults with underlying health conditions — such as diabetes, a weakened immune system, or lung or heart disease — are at high risk for severe disease. "Today’s approval of the first RSV vaccine is an important public health achievement to prevent a disease which can be life-threatening and reflects the FDA’s continued commitment to facilitating the development of safe and effective vaccines for use in the United States," said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research, in a statement.
The FDA approval of Arexvy was based on a clinical study of approximately 25,000 patients. Half of these patients received Arexvy, while the other half received a placebo. Researchers found that the RSV vaccine reduced RSV-associated lower respiratory tract disease (LRTD) by nearly 83% and reduced the risk of developing severe RSV-associated LRTD by 94%. The most commonly reported side effects were injection site pain, fatigue, muscle pain, headache, and joint stiffness/pain. Ten patients who received Arexvy and four patients who received placebo experienced atrial fibrillation within 30 days of vaccination. The company is planning to assess risk for atrial fibrillation in postmarking studies, the FDA said. The European Medicine Agency’s Committee for Medicinal Products for Human Use recommended approval of Arexvy on April 25, 2023, on the basis of data from the same clinical trial.
GSK said that the U.S. launch of Arexvy will occur sometime in the fall before the 2023/2024 RSV season, but the company did not provide exact dates. "Today marks a turning point in our effort to reduce the significant burden of RSV," said GSK’s chief scientific officer, Tony Wood, PhD, in a company statement. "Our focus now is to ensure eligible older adults in the U.S. can access the vaccine as quickly as possible and to progress regulatory review in other countries."
A version of this article first appeared on Medscape.com.
Every year, RSV is responsible for 60,000–120,000 hospitalizations and 6,000–10,000 deaths among U.S. adults older than age, according to the FDA. Older adults with underlying health conditions — such as diabetes, a weakened immune system, or lung or heart disease — are at high risk for severe disease. "Today’s approval of the first RSV vaccine is an important public health achievement to prevent a disease which can be life-threatening and reflects the FDA’s continued commitment to facilitating the development of safe and effective vaccines for use in the United States," said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research, in a statement.
The FDA approval of Arexvy was based on a clinical study of approximately 25,000 patients. Half of these patients received Arexvy, while the other half received a placebo. Researchers found that the RSV vaccine reduced RSV-associated lower respiratory tract disease (LRTD) by nearly 83% and reduced the risk of developing severe RSV-associated LRTD by 94%. The most commonly reported side effects were injection site pain, fatigue, muscle pain, headache, and joint stiffness/pain. Ten patients who received Arexvy and four patients who received placebo experienced atrial fibrillation within 30 days of vaccination. The company is planning to assess risk for atrial fibrillation in postmarking studies, the FDA said. The European Medicine Agency’s Committee for Medicinal Products for Human Use recommended approval of Arexvy on April 25, 2023, on the basis of data from the same clinical trial.
GSK said that the U.S. launch of Arexvy will occur sometime in the fall before the 2023/2024 RSV season, but the company did not provide exact dates. "Today marks a turning point in our effort to reduce the significant burden of RSV," said GSK’s chief scientific officer, Tony Wood, PhD, in a company statement. "Our focus now is to ensure eligible older adults in the U.S. can access the vaccine as quickly as possible and to progress regulatory review in other countries."
A version of this article first appeared on Medscape.com.
Every year, RSV is responsible for 60,000–120,000 hospitalizations and 6,000–10,000 deaths among U.S. adults older than age, according to the FDA. Older adults with underlying health conditions — such as diabetes, a weakened immune system, or lung or heart disease — are at high risk for severe disease. "Today’s approval of the first RSV vaccine is an important public health achievement to prevent a disease which can be life-threatening and reflects the FDA’s continued commitment to facilitating the development of safe and effective vaccines for use in the United States," said Peter Marks, MD, PhD, director of the FDA’s Center for Biologics Evaluation and Research, in a statement.
The FDA approval of Arexvy was based on a clinical study of approximately 25,000 patients. Half of these patients received Arexvy, while the other half received a placebo. Researchers found that the RSV vaccine reduced RSV-associated lower respiratory tract disease (LRTD) by nearly 83% and reduced the risk of developing severe RSV-associated LRTD by 94%. The most commonly reported side effects were injection site pain, fatigue, muscle pain, headache, and joint stiffness/pain. Ten patients who received Arexvy and four patients who received placebo experienced atrial fibrillation within 30 days of vaccination. The company is planning to assess risk for atrial fibrillation in postmarking studies, the FDA said. The European Medicine Agency’s Committee for Medicinal Products for Human Use recommended approval of Arexvy on April 25, 2023, on the basis of data from the same clinical trial.
GSK said that the U.S. launch of Arexvy will occur sometime in the fall before the 2023/2024 RSV season, but the company did not provide exact dates. "Today marks a turning point in our effort to reduce the significant burden of RSV," said GSK’s chief scientific officer, Tony Wood, PhD, in a company statement. "Our focus now is to ensure eligible older adults in the U.S. can access the vaccine as quickly as possible and to progress regulatory review in other countries."
A version of this article first appeared on Medscape.com.
Donanemab bests aducanumab in head-to-head Alzheimer’s trial
BOSTON –
Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.
Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.
Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.
“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.
The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
Multicenter, head-to-head trial
Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.
TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.
Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.
Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.
After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).
Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).
Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).
Investigators also noted a greater reduction in plasma ptau217 with donanemab.
Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.
There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.
“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.
There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.
That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.
The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.
“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.
Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
Questions remain
“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.
Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”
Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.
“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.
It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.
“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”
The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
BOSTON –
Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.
Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.
Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.
“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.
The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
Multicenter, head-to-head trial
Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.
TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.
Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.
Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.
After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).
Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).
Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).
Investigators also noted a greater reduction in plasma ptau217 with donanemab.
Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.
There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.
“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.
There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.
That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.
The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.
“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.
Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
Questions remain
“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.
Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”
Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.
“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.
It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.
“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”
The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
BOSTON –
Nearly 40% of patients treated with donanemab had amyloid clearance at 6 months compared with less than 2% of those who received aducanumab, which was approved in 2021 amid a great deal of controversy.
Titration for donanemab progressed more quickly, with participants receiving a maximum dose twice as early as those on aducanumab, without any increase in rates of amyloid-related imaging abnormalities (ARIA) – the most common side effect of amyloid drugs.
Early results from the randomized phase 3 TRAILBLAZER-ALZ 4 trial of donanemab come just 3 months after the Food and Drug Administration denied manufacturer Eli Lilly’s request for accelerated approval for the drug.
“This study shows that the drug with the quicker titration scheme, donanemab, produced more amyloid lowering and did it without having more ARIA,” said lead investigator Stephen P. Salloway, MD, director of the Memory and Aging Program at Butler Hospital in Providence, R.I., and a professor of neurology at Brown University.
The findings were presented at the 2023 annual meeting of the American Academy of Neurology.
Multicenter, head-to-head trial
Donanemab received breakthrough therapy designation in 2021. The drug works similarly to aducanumab and lecanemab, which was approved earlier this year. All three bind to different parts of the amyloid molecule and stimulate an immune response to help clear amyloid plaques, although they each have a distinctive binding component.
TRAILBLAZER-ALZ 4 was conducted at 31 sites across the United States, enrolling 140 patients aged 50-85 years with early and symptomatic Alzheimer’s disease. Study participants received donanemab or aducanumab at escalating doses for 18 months.
Donanemab was titrated more quickly, with participants receiving 700 mg via IV infusion once a month for 3 months before reaching the maximum dose of 1,400 mg in the fourth month of the study.
Aducanumab titration was slower, beginning at 1 mg/kg via IV monthly for 2 months, then 3 mg/kg for another 2 months, and 6 mg/kg for 2 more months before reaching the maximum dose of 10 mg/kg in the seventh month.
After 6 months of treatment, PET scan analysis revealed that 37.9% of donanemab-treated patients achieved amyloid clearance compared with just 1.6% of those who received aducanumab (P < .001).
Among patients with intermediate tau levels (n = 27 for donanemab and n = 28 for aducanumab), 38.5% of those who received donanemab achieved amyloid clearance compared with 3.8% of patients in the aducanumab group (P = .008).
Amyloid levels were 65.2% lower in donanemab patients, while levels in those receiving aducanumab were reduced by 17.0% (P < .001). Among those with intermediate tau, amyloid levels decreased with donanemab by 63.9% and 25.4% with aducanumab (P ≤ .001).
Investigators also noted a greater reduction in plasma ptau217 with donanemab.
Adverse events were similar between groups, with 62.0% of the donanemab group and 66.7% of aducanumab-treated participants reporting an adverse event.
There were no serious adverse events due to ARIA with donanemab, but one participant in the aducanumab group had a serious adverse event linked to ARIA.
“Even though the amyloid lowering was greater with donanemab, the rate of ARIA was similar, which suggests that the speed and depth of amyloid removal is not driving ARIA,” Dr. Salloway said.
There are three other Trailblazer trials of donanemab. Unlike in similar trials, participants in all three of these studies who received the trial drug could discontinue treatment once criteria for amyloid clearance were met.
That’s precisely what happened with Trailblazer 2, the study on which Lilly based its request for accelerated approval. Ironically, that trial design also contributed to the FDA’s decision to reject that request.
The FDA required data from at least 100 patients who had received donanemab for a minimum of 1 year. While the trial included more than 100 patients, many patients discontinued treatment early after achieving the targeted amount of amyloid clearance.
“They had success, and they got punished for it, in my opinion,” Dr. Salloway said.
Final data from Trailblazer 2 is due in the next month, and if results are positive, Lilly is expected to file for full approval.
Questions remain
“This is an interesting study that suggests donanemab may remove amyloid faster in more people than aducanumab,” said Heather Snyder, PhD, Alzheimer’s Association vice president of medical and scientific relations, who commented on the findings.
Howard Fillit, MD, cofounder and chief science officer at the Alzheimer’s Drug Discovery Foundation, also commented on the findings. He noted that faster amyloid clearance “means less time for requiring sometimes burdensome and expensive infusions.”
Both Dr. Snyder and Dr. Fillit noted that longer-term results are needed, along with studies of whether amyloid clearance offers a protective benefit against Alzheimer’s dementia. More results from Trailblazer 4 will be reported after 12 months and again at 18 months.
“There are obviously still a lot of questions about these drugs and whether reducing amyloid plaque will actually preserve cognitive function or at least slow decline,” Dr. Fillit said.
It will also be important to understand the timing of treatment, including when anti-amyloid therapies should be administered and for how long.
“It will be important to understand how these results translate to patient care and treatment plans, should this drug receive FDA approval,” Dr. Snyder said. “Patients should have the opportunity to make a decision, alongside their physician, on a treatment path that is right for them.”
The study was funded by Eli Lilly. Dr. Salloway has been a consultant for Biogen, EISAI, Lilly, Genentech, Novo Nordisk, Prothena, and others. Dr. Snyder and Dr. Fillit have disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
FROM AAN 2023
Cautious optimism for new Alzheimer’s disease biomarkers and treatments, expert says
SAN DIEGO –
Dementia prevalence is increasing as the proportion of the U.S. population older than 65 rises, said Zaldy Tan, MD, professor of neurology at Cedars-Sinai Medical Center, Los Angeles. AD deaths more than doubled between 2000 and 2018, he noted, while deaths from HIV infection, stroke, and heart disease decreased.
Most people in the United States who have AD are White, but studies suggest that, compared with Whites, the risk of AD is two times higher in Blacks and 1.5 times higher in Hispanics . “These data suggest that both genes and social determinants of health are at play,” Dr. Tan said.
Diagnosis of Alzheimer’s disease
The different types of dementia make it challenging for primary care physicians to identify the cause of cognitive impairment. “Even though AD is the most common type, clinicians should keep in mind that another type of dementia may be the cause of cognitive impairment,” Dr. Tan cautioned. Other dementia diagnoses include vascular, Lewy body, and frontotemporal.
Diagnostic criteria for AD include evidence of significant cognitive decline in at least one cognitive domain that interferes with independence in everyday activities, as well as the absence of another mental disorder or delirium that would explain the cognitive deficits.
“We see many patients with depressive symptoms and mild cognitive impairment, and it is not always easy to tell which of them have dementia because of the overlap in the symptoms of depression and AD,” said internist Roderick Kim, MD, of Grand Rapids, Mich., who attended the session.
It can be challenging to convince patients to undergo the appropriate diagnostic workup, Dr. Kim said. “This can delay treatment, so it is important to explain to patients that cognitive decline can progress quickly and that there are treatment options to slow it down.”
Why do we need biomarkers for Alzheimer’s disease?
AD is characterized by a long preclinical phase with no specific symptoms other than the typical signs and symptoms of aging, Dr. Tan said. That means cognitive impairment progresses rapidly after diagnosis in most patients with AD.
“In most cases, an accurate history, physical and neurologic examinations, basic labs, and neuroimaging are sufficient for memory loss evaluation. However, as more disease-modifying therapies come to market, biomarkers will rise in importance in primary care,” he said.
This long asymptomatic phase of AD creates the need for diagnostic biomarkers for an earlier diagnosis, he said. Amyloid-beta and tau deposits in PET images and the levels of amyloid-beta seeds, phosphorylated tau, and neurofilament light chain in the cerebrospinal fluid can be used as diagnostic biomarkers in patients with suspected AD. Emerging blood biomarkers for earlier detection include the levels of amyloid-beta1–42, phosphorylated tau, and neurofilament light chain.
With biomarkers and other new tools for the diagnosis of dementia in primary care, Dr. Tan said: “The greatest challenge is cost, as blood-based biomarkers are not currently covered by insurance and still rather costly. In addition, blood-based biomarkers will need to receive [Food and Drug Administration] approval in order to have more widespread availability.”
New and emerging therapies for Alzheimer’s disease
There are two classes of FDA-approved medications to manage cognitive symptoms of dementia: acetylcholinesterase inhibitors and N-methyl-D-aspartate receptor antagonists. The selections may be trial and error for each patient, Dr. Tan said.
“The approved medications can exert subtle benefits that are clinically observable. Thus, barring any contraindications or intolerance, most patients with AD would benefit from a trial of one or both of these medication classes,” said Dr. Tan. He added that it is equally important to wean off and discontinue these medications if there is intolerance or lack of a subjective or objective beneficial response.
Other medications are available for some of the most common behavioral problems associated with dementia, such as agitation, depression, and disorientation. Dr. Tan advised not to prescribe behavioral medications until nonpharmacologic interventions prove to be ineffective or impractical. Behavioral medications have many side effects, some of which are potentially serious, he said, so the risk-benefit ratio should be considered.
In his own practice, when nonpharmacologic strategies do not improve the behavioral symptoms of dementia, Dr. Tan said that, “in cases where a person is at risk of harm to themselves or others, a discussion with the patient and their caregivers about the pros and cons of medications to treat the behavior need to be had. Careful monitoring of the response and dose escalation or deprescribing when appropriate is important to keep in mind.”
Disease-modifying agents have recently provided new hope for AD treatment. Aducanumab and lecanemab, both monoclonal antibodies that target amyloids, are the first two drugs that received accelerated FDA approval for AD.
Although these monoclonal antibodies can help clear deposited amyloid plaques and show some benefit in slowing cognitive impairment in clinical trials, the real-world benefits were unclear enough for Medicare to limit coverage to people enrolled in approved studies to gather more data. Additionally, these agents can cause potentially amyloid-related imaging abnormalities, which may indicate edema, effusion, or microhemorrhage. Therefore, clinicians need to have a clear conversation of risks and benefits with patients and caregivers about these treatments.
Looking ahead
When asked about the most promising emerging technologies or techniques related to dementia diagnosis and management, Dr. Tan noted that multiple technology companies and start-ups are looking for new ways to detect dementia earlier or keep persons with dementia safe at home. Some devices deliver brain waves, computerized brain games or tests, automated pill dispensers, and fall monitors.
“Some of these are potentially helpful, but not every person with dementia will benefit. In addition, most of these technologies are out-of-pocket expenses for the patients and their families. It is important to know what is out there but also be cautious about outrageous claims,” he added.
Dr. Tan reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing health care products used by or on patients.
SAN DIEGO –
Dementia prevalence is increasing as the proportion of the U.S. population older than 65 rises, said Zaldy Tan, MD, professor of neurology at Cedars-Sinai Medical Center, Los Angeles. AD deaths more than doubled between 2000 and 2018, he noted, while deaths from HIV infection, stroke, and heart disease decreased.
Most people in the United States who have AD are White, but studies suggest that, compared with Whites, the risk of AD is two times higher in Blacks and 1.5 times higher in Hispanics . “These data suggest that both genes and social determinants of health are at play,” Dr. Tan said.
Diagnosis of Alzheimer’s disease
The different types of dementia make it challenging for primary care physicians to identify the cause of cognitive impairment. “Even though AD is the most common type, clinicians should keep in mind that another type of dementia may be the cause of cognitive impairment,” Dr. Tan cautioned. Other dementia diagnoses include vascular, Lewy body, and frontotemporal.
Diagnostic criteria for AD include evidence of significant cognitive decline in at least one cognitive domain that interferes with independence in everyday activities, as well as the absence of another mental disorder or delirium that would explain the cognitive deficits.
“We see many patients with depressive symptoms and mild cognitive impairment, and it is not always easy to tell which of them have dementia because of the overlap in the symptoms of depression and AD,” said internist Roderick Kim, MD, of Grand Rapids, Mich., who attended the session.
It can be challenging to convince patients to undergo the appropriate diagnostic workup, Dr. Kim said. “This can delay treatment, so it is important to explain to patients that cognitive decline can progress quickly and that there are treatment options to slow it down.”
Why do we need biomarkers for Alzheimer’s disease?
AD is characterized by a long preclinical phase with no specific symptoms other than the typical signs and symptoms of aging, Dr. Tan said. That means cognitive impairment progresses rapidly after diagnosis in most patients with AD.
“In most cases, an accurate history, physical and neurologic examinations, basic labs, and neuroimaging are sufficient for memory loss evaluation. However, as more disease-modifying therapies come to market, biomarkers will rise in importance in primary care,” he said.
This long asymptomatic phase of AD creates the need for diagnostic biomarkers for an earlier diagnosis, he said. Amyloid-beta and tau deposits in PET images and the levels of amyloid-beta seeds, phosphorylated tau, and neurofilament light chain in the cerebrospinal fluid can be used as diagnostic biomarkers in patients with suspected AD. Emerging blood biomarkers for earlier detection include the levels of amyloid-beta1–42, phosphorylated tau, and neurofilament light chain.
With biomarkers and other new tools for the diagnosis of dementia in primary care, Dr. Tan said: “The greatest challenge is cost, as blood-based biomarkers are not currently covered by insurance and still rather costly. In addition, blood-based biomarkers will need to receive [Food and Drug Administration] approval in order to have more widespread availability.”
New and emerging therapies for Alzheimer’s disease
There are two classes of FDA-approved medications to manage cognitive symptoms of dementia: acetylcholinesterase inhibitors and N-methyl-D-aspartate receptor antagonists. The selections may be trial and error for each patient, Dr. Tan said.
“The approved medications can exert subtle benefits that are clinically observable. Thus, barring any contraindications or intolerance, most patients with AD would benefit from a trial of one or both of these medication classes,” said Dr. Tan. He added that it is equally important to wean off and discontinue these medications if there is intolerance or lack of a subjective or objective beneficial response.
Other medications are available for some of the most common behavioral problems associated with dementia, such as agitation, depression, and disorientation. Dr. Tan advised not to prescribe behavioral medications until nonpharmacologic interventions prove to be ineffective or impractical. Behavioral medications have many side effects, some of which are potentially serious, he said, so the risk-benefit ratio should be considered.
In his own practice, when nonpharmacologic strategies do not improve the behavioral symptoms of dementia, Dr. Tan said that, “in cases where a person is at risk of harm to themselves or others, a discussion with the patient and their caregivers about the pros and cons of medications to treat the behavior need to be had. Careful monitoring of the response and dose escalation or deprescribing when appropriate is important to keep in mind.”
Disease-modifying agents have recently provided new hope for AD treatment. Aducanumab and lecanemab, both monoclonal antibodies that target amyloids, are the first two drugs that received accelerated FDA approval for AD.
Although these monoclonal antibodies can help clear deposited amyloid plaques and show some benefit in slowing cognitive impairment in clinical trials, the real-world benefits were unclear enough for Medicare to limit coverage to people enrolled in approved studies to gather more data. Additionally, these agents can cause potentially amyloid-related imaging abnormalities, which may indicate edema, effusion, or microhemorrhage. Therefore, clinicians need to have a clear conversation of risks and benefits with patients and caregivers about these treatments.
Looking ahead
When asked about the most promising emerging technologies or techniques related to dementia diagnosis and management, Dr. Tan noted that multiple technology companies and start-ups are looking for new ways to detect dementia earlier or keep persons with dementia safe at home. Some devices deliver brain waves, computerized brain games or tests, automated pill dispensers, and fall monitors.
“Some of these are potentially helpful, but not every person with dementia will benefit. In addition, most of these technologies are out-of-pocket expenses for the patients and their families. It is important to know what is out there but also be cautious about outrageous claims,” he added.
Dr. Tan reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing health care products used by or on patients.
SAN DIEGO –
Dementia prevalence is increasing as the proportion of the U.S. population older than 65 rises, said Zaldy Tan, MD, professor of neurology at Cedars-Sinai Medical Center, Los Angeles. AD deaths more than doubled between 2000 and 2018, he noted, while deaths from HIV infection, stroke, and heart disease decreased.
Most people in the United States who have AD are White, but studies suggest that, compared with Whites, the risk of AD is two times higher in Blacks and 1.5 times higher in Hispanics . “These data suggest that both genes and social determinants of health are at play,” Dr. Tan said.
Diagnosis of Alzheimer’s disease
The different types of dementia make it challenging for primary care physicians to identify the cause of cognitive impairment. “Even though AD is the most common type, clinicians should keep in mind that another type of dementia may be the cause of cognitive impairment,” Dr. Tan cautioned. Other dementia diagnoses include vascular, Lewy body, and frontotemporal.
Diagnostic criteria for AD include evidence of significant cognitive decline in at least one cognitive domain that interferes with independence in everyday activities, as well as the absence of another mental disorder or delirium that would explain the cognitive deficits.
“We see many patients with depressive symptoms and mild cognitive impairment, and it is not always easy to tell which of them have dementia because of the overlap in the symptoms of depression and AD,” said internist Roderick Kim, MD, of Grand Rapids, Mich., who attended the session.
It can be challenging to convince patients to undergo the appropriate diagnostic workup, Dr. Kim said. “This can delay treatment, so it is important to explain to patients that cognitive decline can progress quickly and that there are treatment options to slow it down.”
Why do we need biomarkers for Alzheimer’s disease?
AD is characterized by a long preclinical phase with no specific symptoms other than the typical signs and symptoms of aging, Dr. Tan said. That means cognitive impairment progresses rapidly after diagnosis in most patients with AD.
“In most cases, an accurate history, physical and neurologic examinations, basic labs, and neuroimaging are sufficient for memory loss evaluation. However, as more disease-modifying therapies come to market, biomarkers will rise in importance in primary care,” he said.
This long asymptomatic phase of AD creates the need for diagnostic biomarkers for an earlier diagnosis, he said. Amyloid-beta and tau deposits in PET images and the levels of amyloid-beta seeds, phosphorylated tau, and neurofilament light chain in the cerebrospinal fluid can be used as diagnostic biomarkers in patients with suspected AD. Emerging blood biomarkers for earlier detection include the levels of amyloid-beta1–42, phosphorylated tau, and neurofilament light chain.
With biomarkers and other new tools for the diagnosis of dementia in primary care, Dr. Tan said: “The greatest challenge is cost, as blood-based biomarkers are not currently covered by insurance and still rather costly. In addition, blood-based biomarkers will need to receive [Food and Drug Administration] approval in order to have more widespread availability.”
New and emerging therapies for Alzheimer’s disease
There are two classes of FDA-approved medications to manage cognitive symptoms of dementia: acetylcholinesterase inhibitors and N-methyl-D-aspartate receptor antagonists. The selections may be trial and error for each patient, Dr. Tan said.
“The approved medications can exert subtle benefits that are clinically observable. Thus, barring any contraindications or intolerance, most patients with AD would benefit from a trial of one or both of these medication classes,” said Dr. Tan. He added that it is equally important to wean off and discontinue these medications if there is intolerance or lack of a subjective or objective beneficial response.
Other medications are available for some of the most common behavioral problems associated with dementia, such as agitation, depression, and disorientation. Dr. Tan advised not to prescribe behavioral medications until nonpharmacologic interventions prove to be ineffective or impractical. Behavioral medications have many side effects, some of which are potentially serious, he said, so the risk-benefit ratio should be considered.
In his own practice, when nonpharmacologic strategies do not improve the behavioral symptoms of dementia, Dr. Tan said that, “in cases where a person is at risk of harm to themselves or others, a discussion with the patient and their caregivers about the pros and cons of medications to treat the behavior need to be had. Careful monitoring of the response and dose escalation or deprescribing when appropriate is important to keep in mind.”
Disease-modifying agents have recently provided new hope for AD treatment. Aducanumab and lecanemab, both monoclonal antibodies that target amyloids, are the first two drugs that received accelerated FDA approval for AD.
Although these monoclonal antibodies can help clear deposited amyloid plaques and show some benefit in slowing cognitive impairment in clinical trials, the real-world benefits were unclear enough for Medicare to limit coverage to people enrolled in approved studies to gather more data. Additionally, these agents can cause potentially amyloid-related imaging abnormalities, which may indicate edema, effusion, or microhemorrhage. Therefore, clinicians need to have a clear conversation of risks and benefits with patients and caregivers about these treatments.
Looking ahead
When asked about the most promising emerging technologies or techniques related to dementia diagnosis and management, Dr. Tan noted that multiple technology companies and start-ups are looking for new ways to detect dementia earlier or keep persons with dementia safe at home. Some devices deliver brain waves, computerized brain games or tests, automated pill dispensers, and fall monitors.
“Some of these are potentially helpful, but not every person with dementia will benefit. In addition, most of these technologies are out-of-pocket expenses for the patients and their families. It is important to know what is out there but also be cautious about outrageous claims,” he added.
Dr. Tan reported no relationships with entities whose primary business is producing, marketing, selling, reselling, or distributing health care products used by or on patients.
AT INTERNAL MEDICINE 2023
Personalizing treatment plans for older patients with T2D
In the United States, type 2 diabetes (T2D) more commonly affects people older than 40 years, but it is most prevalent among adults over age 65, affecting more than 29% of this population. The heterogeneity in the health and functional status of older adults presents a challenge in the management and treatment of older patients with T2D. Moreover, there is an increased risk for health-related comorbidities and complications from diabetes treatment (for example, hypoglycemia) in older adults. Physiologic changes, such as decreased renal function, cognitive decline, and sarcopenia, may lead to an increased risk for adverse reactions to medications and require an individualized treatment approach. Although there have been a limited number of randomized controlled studies targeting older adults with multiple comorbidities and poor health status, subanalyses of diabetes trials with a subpopulation of older adults have provided additional evidence to better guide therapeutic approaches in caring for older patients with T2D.
Here’s a guide to developing personalized therapeutic regimens for older patients with T2D using lifestyle interventions, pharmacotherapy, and diabetes technology.
Determining an optimal glycemic target
An important first step in diabetes treatment is to determine the optimal glycemic target for patients. Although data support intensive glycemic control (hemoglobin A1c < 7%) to prevent complications from diabetes in younger patients with recently diagnosed disease, the data are less compelling in trials involving older populations with longer durations of T2D. One observational study with 71,092 older adults over age 60 reported a U-shaped correlation between A1c and mortality, with higher risks for mortality in those with A1c levels < 6% and ≥ 11%, compared with those with A1c levels of 6%-9%. Risks for any diabetes complications were higher at an A1c level ≥ 8%. Another observational study reported a U-shaped association between A1c and mortality, with the lowest hazard ratio for mortality at an A1c level of about 7.5%. Similarly, the ACCORD trial, which included older and middle-aged patients with T2D who had or were at risk for atherosclerotic cardiovascular disease, found that mortality followed a U-shaped curve at the low (A1c < 7%) and high (A1c > 8%) ends in patients who were given standard glycemic therapy. Hence, there has been a general trend to recommend less strict glycemic control in older adults.
However, it is important to remember that older patients with T2D are a heterogeneous group. The spectrum includes adults with recent-onset diabetes with no or few complications, those with long-standing diabetes and many complications, and frail older adults with multiple comorbidities and complications. Determining the optimal glycemic target for an older patient with T2D requires assessment not only of the patient’s medical status and comorbidities but also functional status, cognitive and psychological health, social situation, individual preferences, and life expectancy. The American Diabetes Association Standards of Medical Care in Diabetes provides the following guidance in determining the optimal glycemic control for older adults:
- Healthy adults with few coexisting chronic illnesses and intact cognitive and functional status should have an A1c level < 7.0%-7.5%.
- Adults with complex or intermediate comorbidities (multiple coexisting chronic illnesses, or two or more instrumental activities of daily living impairments, or mild to moderate cognitive impairment) should have an A1c level < 8.0%.
- Patients with poor health (long-term care or end-stage chronic illnesses or moderate to severe cognitive impairment or two or more activities of daily living impairments) should avoid reliance on A1c, and the goal is to avoid hypoglycemia and symptomatic hyperglycemia.
Because older patients are at a higher risk for complications and adverse effects from polypharmacy, regular assessments are recommended and treatment plans should be routinely reviewed and modified to avoid overtreatment.
Lifestyle interventions and pharmacotherapy
Lifestyle interventions, such as exercise, optimal nutrition, and protein intake, are integral in treating older patients with T2D. Older adults should engage in regular exercise (that is, aerobic activity, weight-bearing exercise, or resistance training), and the activity should be customized to frailty status. Regular exercise improves insulin sensitivity and glucose control, enhances functional status, and provides cardiometabolic benefits. Optimal nutrition and adequate protein intake are also important to prevent the development or worsening of sarcopenia and frailty.
Several factors must be considered when choosing pharmacotherapy for T2D treatment in older adults. These patients are at higher risk for adverse reactions to medications that can trigger hypoglycemia and serious cardiovascular events, and worsen cognitive function. Therefore, side effects should always be reviewed when choosing antidiabetic drugs. The complexity of treatment plans needs to be matched with the patients’ self-management abilities and available social support. Medication costs and insurance coverage should be considered because many older adults live on a fixed income. Although limited, data exist on the safety and efficacy of some glucose-lowering agents in older adults, which can provide guidance for choosing the optimal therapy for these patients.
Among the insulin sensitizers, metformin is most commonly used because of its efficacy, low risk for hypoglycemia, and affordability. Metformin can be safely used in the setting of reduced renal function down to the estimated glomerular filtration rate ≥ 30 mL/min per 1.73 m2. However, metformin should be avoided in patients with more advanced renal disease, liver failure, or heart failure. In older patients with T2D, potential concerns of metformin include gastrointestinal side effects, leading to reduced appetite, mild weight loss, and risk for vitamin B12 deficiency.
Pioglitazone, an oral antidiabetic in the thiazolidinedione (TZD) class, also targets insulin resistance and may provide some cardiovascular benefits. However, these agents are not commonly used in treating older patients with T2D owing to associated risk for edema, heart failure, osteoporosis/fractures, and bladder cancer.
Sulfonylureas and meglitinides are insulin secretagogues, which can promote insulin release independent of glucose levels. Sulfonylureas are typically avoided in older patients because they are associated with high risk for hypoglycemia. Meglitinides have a lower hypoglycemia risk than sulfonylureas because of their short duration of action; however, they are more expensive and require multiple daily administration, which can lead to issues with adherence.
Since 2008, there have been numerous cardiovascular outcomes trials assessing the safety and efficacy of T2D therapies that included a subpopulation of older patients either with cardiovascular disease or at high risk for cardiovascular disease. Post hoc analysis of data from these trials and smaller studies dedicated to older adults demonstrated the safety and efficacy of most incretin-based therapies and sodium-glucose cotransporter 2 (SGLT2) inhibitors in these patients. These newer medications have low hypoglycemia risk if not used in combination with insulin or insulin secretagogues.
Dipeptidyl peptidase 4 (DPP-4) inhibitors have the mildest side effect profile. However, they can be expensive and not reduce major adverse cardiovascular outcomes, and one agent, saxagliptin, has been associated with increased risk for heart failure hospitalization. Some glucagon-like peptide 1 (GLP-1) receptor agonists are effective in reducing major adverse cardiovascular events (cardiovascular deaths, stroke, and myocardial infarction) in patients older and younger than age 65. However, the gastrointestinal side effects and weight loss associated with this medication can be problematic for older patients. Most of the GLP-1 receptor agonists are injectables, which require good visual, motor, and cognitive skills for administration. SGLT2 inhibitors offer benefits for patients with T2D who have established cardiovascular disease, heart failure, and chronic kidney disease, with possible greater cardiovascular benefits in older adults. Adverse effects associated with SGLT2 inhibitors, such as weight loss, volume depletion, urinary incontinence, and genitourinary infections, may be a concern in older patients with T2D who are using these medications.
Because the insulin-secreting capacity of the pancreas declines with age, insulin therapy may be required for treatment of T2D in older patients. Insulin therapy can be complex and consideration must be given to patients’ social circumstances, as well as their physical and cognitive abilities. Older adults may need adaptive strategies, such as additional lighting, magnification glass, and premixed syringes. Simplification of complex insulin therapy (discontinuation of prandial insulin or sliding scale, changing timing of basal insulin) and use of insulin analogs with lower hypoglycemia risks should be considered. Weight gain as a result of insulin therapy may be beneficial in older adults with sarcopenia or frailty.
T2D technology for glycemic improvement
There have been major technological advancements in diabetes therapy. Continuous glucose monitors (CGMs) and automated insulin delivery systems can improve glycemic control, decrease the rate of hypoglycemia, and enhance the quality of life of older patients. Most of the studies evaluating the use of automated insulin delivery systems in older patients have focused on those with type 1 diabetes and demonstrated improvement in glycemic control and/or reduced hypoglycemia. The DIAMOND trial demonstrated improved A1c and reduced glycemic variability with the use of CGM in adults older than 60 years with either type 1 or type 2 diabetes on multiple daily injections. Bluetooth-enabled “smart” insulin pens, which record the time and dose of insulin administrations, can also be a great asset in caring for older patients, especially those with cognitive impairment. With better insurance coverage, diabetes technologies may become more accessible and an asset in treating older patients with T2D.
In conclusion, management of T2D in older adults requires an individualized approach because of the heterogeneity in their health and functional status. Because cardiovascular disease is the leading cause of mortality in older patients with T2D, treatment plans should also address frequently coexisting cardiovascular risk factors, such as hypertension and hyperlipidemia. Clinicians should consider patients’ overall health, comorbidities, cognitive and functional status, social support systems, preferences, and life expectancy when developing individualized therapeutic plans.
Dr. Gunawan is an assistant professor in the department of internal medicine at UT Southwestern Medical Center, Dallas. She reported no relevant conflicts of interest.
A version of this article first appeared on Medscape.com.
In the United States, type 2 diabetes (T2D) more commonly affects people older than 40 years, but it is most prevalent among adults over age 65, affecting more than 29% of this population. The heterogeneity in the health and functional status of older adults presents a challenge in the management and treatment of older patients with T2D. Moreover, there is an increased risk for health-related comorbidities and complications from diabetes treatment (for example, hypoglycemia) in older adults. Physiologic changes, such as decreased renal function, cognitive decline, and sarcopenia, may lead to an increased risk for adverse reactions to medications and require an individualized treatment approach. Although there have been a limited number of randomized controlled studies targeting older adults with multiple comorbidities and poor health status, subanalyses of diabetes trials with a subpopulation of older adults have provided additional evidence to better guide therapeutic approaches in caring for older patients with T2D.
Here’s a guide to developing personalized therapeutic regimens for older patients with T2D using lifestyle interventions, pharmacotherapy, and diabetes technology.
Determining an optimal glycemic target
An important first step in diabetes treatment is to determine the optimal glycemic target for patients. Although data support intensive glycemic control (hemoglobin A1c < 7%) to prevent complications from diabetes in younger patients with recently diagnosed disease, the data are less compelling in trials involving older populations with longer durations of T2D. One observational study with 71,092 older adults over age 60 reported a U-shaped correlation between A1c and mortality, with higher risks for mortality in those with A1c levels < 6% and ≥ 11%, compared with those with A1c levels of 6%-9%. Risks for any diabetes complications were higher at an A1c level ≥ 8%. Another observational study reported a U-shaped association between A1c and mortality, with the lowest hazard ratio for mortality at an A1c level of about 7.5%. Similarly, the ACCORD trial, which included older and middle-aged patients with T2D who had or were at risk for atherosclerotic cardiovascular disease, found that mortality followed a U-shaped curve at the low (A1c < 7%) and high (A1c > 8%) ends in patients who were given standard glycemic therapy. Hence, there has been a general trend to recommend less strict glycemic control in older adults.
However, it is important to remember that older patients with T2D are a heterogeneous group. The spectrum includes adults with recent-onset diabetes with no or few complications, those with long-standing diabetes and many complications, and frail older adults with multiple comorbidities and complications. Determining the optimal glycemic target for an older patient with T2D requires assessment not only of the patient’s medical status and comorbidities but also functional status, cognitive and psychological health, social situation, individual preferences, and life expectancy. The American Diabetes Association Standards of Medical Care in Diabetes provides the following guidance in determining the optimal glycemic control for older adults:
- Healthy adults with few coexisting chronic illnesses and intact cognitive and functional status should have an A1c level < 7.0%-7.5%.
- Adults with complex or intermediate comorbidities (multiple coexisting chronic illnesses, or two or more instrumental activities of daily living impairments, or mild to moderate cognitive impairment) should have an A1c level < 8.0%.
- Patients with poor health (long-term care or end-stage chronic illnesses or moderate to severe cognitive impairment or two or more activities of daily living impairments) should avoid reliance on A1c, and the goal is to avoid hypoglycemia and symptomatic hyperglycemia.
Because older patients are at a higher risk for complications and adverse effects from polypharmacy, regular assessments are recommended and treatment plans should be routinely reviewed and modified to avoid overtreatment.
Lifestyle interventions and pharmacotherapy
Lifestyle interventions, such as exercise, optimal nutrition, and protein intake, are integral in treating older patients with T2D. Older adults should engage in regular exercise (that is, aerobic activity, weight-bearing exercise, or resistance training), and the activity should be customized to frailty status. Regular exercise improves insulin sensitivity and glucose control, enhances functional status, and provides cardiometabolic benefits. Optimal nutrition and adequate protein intake are also important to prevent the development or worsening of sarcopenia and frailty.
Several factors must be considered when choosing pharmacotherapy for T2D treatment in older adults. These patients are at higher risk for adverse reactions to medications that can trigger hypoglycemia and serious cardiovascular events, and worsen cognitive function. Therefore, side effects should always be reviewed when choosing antidiabetic drugs. The complexity of treatment plans needs to be matched with the patients’ self-management abilities and available social support. Medication costs and insurance coverage should be considered because many older adults live on a fixed income. Although limited, data exist on the safety and efficacy of some glucose-lowering agents in older adults, which can provide guidance for choosing the optimal therapy for these patients.
Among the insulin sensitizers, metformin is most commonly used because of its efficacy, low risk for hypoglycemia, and affordability. Metformin can be safely used in the setting of reduced renal function down to the estimated glomerular filtration rate ≥ 30 mL/min per 1.73 m2. However, metformin should be avoided in patients with more advanced renal disease, liver failure, or heart failure. In older patients with T2D, potential concerns of metformin include gastrointestinal side effects, leading to reduced appetite, mild weight loss, and risk for vitamin B12 deficiency.
Pioglitazone, an oral antidiabetic in the thiazolidinedione (TZD) class, also targets insulin resistance and may provide some cardiovascular benefits. However, these agents are not commonly used in treating older patients with T2D owing to associated risk for edema, heart failure, osteoporosis/fractures, and bladder cancer.
Sulfonylureas and meglitinides are insulin secretagogues, which can promote insulin release independent of glucose levels. Sulfonylureas are typically avoided in older patients because they are associated with high risk for hypoglycemia. Meglitinides have a lower hypoglycemia risk than sulfonylureas because of their short duration of action; however, they are more expensive and require multiple daily administration, which can lead to issues with adherence.
Since 2008, there have been numerous cardiovascular outcomes trials assessing the safety and efficacy of T2D therapies that included a subpopulation of older patients either with cardiovascular disease or at high risk for cardiovascular disease. Post hoc analysis of data from these trials and smaller studies dedicated to older adults demonstrated the safety and efficacy of most incretin-based therapies and sodium-glucose cotransporter 2 (SGLT2) inhibitors in these patients. These newer medications have low hypoglycemia risk if not used in combination with insulin or insulin secretagogues.
Dipeptidyl peptidase 4 (DPP-4) inhibitors have the mildest side effect profile. However, they can be expensive and not reduce major adverse cardiovascular outcomes, and one agent, saxagliptin, has been associated with increased risk for heart failure hospitalization. Some glucagon-like peptide 1 (GLP-1) receptor agonists are effective in reducing major adverse cardiovascular events (cardiovascular deaths, stroke, and myocardial infarction) in patients older and younger than age 65. However, the gastrointestinal side effects and weight loss associated with this medication can be problematic for older patients. Most of the GLP-1 receptor agonists are injectables, which require good visual, motor, and cognitive skills for administration. SGLT2 inhibitors offer benefits for patients with T2D who have established cardiovascular disease, heart failure, and chronic kidney disease, with possible greater cardiovascular benefits in older adults. Adverse effects associated with SGLT2 inhibitors, such as weight loss, volume depletion, urinary incontinence, and genitourinary infections, may be a concern in older patients with T2D who are using these medications.
Because the insulin-secreting capacity of the pancreas declines with age, insulin therapy may be required for treatment of T2D in older patients. Insulin therapy can be complex and consideration must be given to patients’ social circumstances, as well as their physical and cognitive abilities. Older adults may need adaptive strategies, such as additional lighting, magnification glass, and premixed syringes. Simplification of complex insulin therapy (discontinuation of prandial insulin or sliding scale, changing timing of basal insulin) and use of insulin analogs with lower hypoglycemia risks should be considered. Weight gain as a result of insulin therapy may be beneficial in older adults with sarcopenia or frailty.
T2D technology for glycemic improvement
There have been major technological advancements in diabetes therapy. Continuous glucose monitors (CGMs) and automated insulin delivery systems can improve glycemic control, decrease the rate of hypoglycemia, and enhance the quality of life of older patients. Most of the studies evaluating the use of automated insulin delivery systems in older patients have focused on those with type 1 diabetes and demonstrated improvement in glycemic control and/or reduced hypoglycemia. The DIAMOND trial demonstrated improved A1c and reduced glycemic variability with the use of CGM in adults older than 60 years with either type 1 or type 2 diabetes on multiple daily injections. Bluetooth-enabled “smart” insulin pens, which record the time and dose of insulin administrations, can also be a great asset in caring for older patients, especially those with cognitive impairment. With better insurance coverage, diabetes technologies may become more accessible and an asset in treating older patients with T2D.
In conclusion, management of T2D in older adults requires an individualized approach because of the heterogeneity in their health and functional status. Because cardiovascular disease is the leading cause of mortality in older patients with T2D, treatment plans should also address frequently coexisting cardiovascular risk factors, such as hypertension and hyperlipidemia. Clinicians should consider patients’ overall health, comorbidities, cognitive and functional status, social support systems, preferences, and life expectancy when developing individualized therapeutic plans.
Dr. Gunawan is an assistant professor in the department of internal medicine at UT Southwestern Medical Center, Dallas. She reported no relevant conflicts of interest.
A version of this article first appeared on Medscape.com.
In the United States, type 2 diabetes (T2D) more commonly affects people older than 40 years, but it is most prevalent among adults over age 65, affecting more than 29% of this population. The heterogeneity in the health and functional status of older adults presents a challenge in the management and treatment of older patients with T2D. Moreover, there is an increased risk for health-related comorbidities and complications from diabetes treatment (for example, hypoglycemia) in older adults. Physiologic changes, such as decreased renal function, cognitive decline, and sarcopenia, may lead to an increased risk for adverse reactions to medications and require an individualized treatment approach. Although there have been a limited number of randomized controlled studies targeting older adults with multiple comorbidities and poor health status, subanalyses of diabetes trials with a subpopulation of older adults have provided additional evidence to better guide therapeutic approaches in caring for older patients with T2D.
Here’s a guide to developing personalized therapeutic regimens for older patients with T2D using lifestyle interventions, pharmacotherapy, and diabetes technology.
Determining an optimal glycemic target
An important first step in diabetes treatment is to determine the optimal glycemic target for patients. Although data support intensive glycemic control (hemoglobin A1c < 7%) to prevent complications from diabetes in younger patients with recently diagnosed disease, the data are less compelling in trials involving older populations with longer durations of T2D. One observational study with 71,092 older adults over age 60 reported a U-shaped correlation between A1c and mortality, with higher risks for mortality in those with A1c levels < 6% and ≥ 11%, compared with those with A1c levels of 6%-9%. Risks for any diabetes complications were higher at an A1c level ≥ 8%. Another observational study reported a U-shaped association between A1c and mortality, with the lowest hazard ratio for mortality at an A1c level of about 7.5%. Similarly, the ACCORD trial, which included older and middle-aged patients with T2D who had or were at risk for atherosclerotic cardiovascular disease, found that mortality followed a U-shaped curve at the low (A1c < 7%) and high (A1c > 8%) ends in patients who were given standard glycemic therapy. Hence, there has been a general trend to recommend less strict glycemic control in older adults.
However, it is important to remember that older patients with T2D are a heterogeneous group. The spectrum includes adults with recent-onset diabetes with no or few complications, those with long-standing diabetes and many complications, and frail older adults with multiple comorbidities and complications. Determining the optimal glycemic target for an older patient with T2D requires assessment not only of the patient’s medical status and comorbidities but also functional status, cognitive and psychological health, social situation, individual preferences, and life expectancy. The American Diabetes Association Standards of Medical Care in Diabetes provides the following guidance in determining the optimal glycemic control for older adults:
- Healthy adults with few coexisting chronic illnesses and intact cognitive and functional status should have an A1c level < 7.0%-7.5%.
- Adults with complex or intermediate comorbidities (multiple coexisting chronic illnesses, or two or more instrumental activities of daily living impairments, or mild to moderate cognitive impairment) should have an A1c level < 8.0%.
- Patients with poor health (long-term care or end-stage chronic illnesses or moderate to severe cognitive impairment or two or more activities of daily living impairments) should avoid reliance on A1c, and the goal is to avoid hypoglycemia and symptomatic hyperglycemia.
Because older patients are at a higher risk for complications and adverse effects from polypharmacy, regular assessments are recommended and treatment plans should be routinely reviewed and modified to avoid overtreatment.
Lifestyle interventions and pharmacotherapy
Lifestyle interventions, such as exercise, optimal nutrition, and protein intake, are integral in treating older patients with T2D. Older adults should engage in regular exercise (that is, aerobic activity, weight-bearing exercise, or resistance training), and the activity should be customized to frailty status. Regular exercise improves insulin sensitivity and glucose control, enhances functional status, and provides cardiometabolic benefits. Optimal nutrition and adequate protein intake are also important to prevent the development or worsening of sarcopenia and frailty.
Several factors must be considered when choosing pharmacotherapy for T2D treatment in older adults. These patients are at higher risk for adverse reactions to medications that can trigger hypoglycemia and serious cardiovascular events, and worsen cognitive function. Therefore, side effects should always be reviewed when choosing antidiabetic drugs. The complexity of treatment plans needs to be matched with the patients’ self-management abilities and available social support. Medication costs and insurance coverage should be considered because many older adults live on a fixed income. Although limited, data exist on the safety and efficacy of some glucose-lowering agents in older adults, which can provide guidance for choosing the optimal therapy for these patients.
Among the insulin sensitizers, metformin is most commonly used because of its efficacy, low risk for hypoglycemia, and affordability. Metformin can be safely used in the setting of reduced renal function down to the estimated glomerular filtration rate ≥ 30 mL/min per 1.73 m2. However, metformin should be avoided in patients with more advanced renal disease, liver failure, or heart failure. In older patients with T2D, potential concerns of metformin include gastrointestinal side effects, leading to reduced appetite, mild weight loss, and risk for vitamin B12 deficiency.
Pioglitazone, an oral antidiabetic in the thiazolidinedione (TZD) class, also targets insulin resistance and may provide some cardiovascular benefits. However, these agents are not commonly used in treating older patients with T2D owing to associated risk for edema, heart failure, osteoporosis/fractures, and bladder cancer.
Sulfonylureas and meglitinides are insulin secretagogues, which can promote insulin release independent of glucose levels. Sulfonylureas are typically avoided in older patients because they are associated with high risk for hypoglycemia. Meglitinides have a lower hypoglycemia risk than sulfonylureas because of their short duration of action; however, they are more expensive and require multiple daily administration, which can lead to issues with adherence.
Since 2008, there have been numerous cardiovascular outcomes trials assessing the safety and efficacy of T2D therapies that included a subpopulation of older patients either with cardiovascular disease or at high risk for cardiovascular disease. Post hoc analysis of data from these trials and smaller studies dedicated to older adults demonstrated the safety and efficacy of most incretin-based therapies and sodium-glucose cotransporter 2 (SGLT2) inhibitors in these patients. These newer medications have low hypoglycemia risk if not used in combination with insulin or insulin secretagogues.
Dipeptidyl peptidase 4 (DPP-4) inhibitors have the mildest side effect profile. However, they can be expensive and not reduce major adverse cardiovascular outcomes, and one agent, saxagliptin, has been associated with increased risk for heart failure hospitalization. Some glucagon-like peptide 1 (GLP-1) receptor agonists are effective in reducing major adverse cardiovascular events (cardiovascular deaths, stroke, and myocardial infarction) in patients older and younger than age 65. However, the gastrointestinal side effects and weight loss associated with this medication can be problematic for older patients. Most of the GLP-1 receptor agonists are injectables, which require good visual, motor, and cognitive skills for administration. SGLT2 inhibitors offer benefits for patients with T2D who have established cardiovascular disease, heart failure, and chronic kidney disease, with possible greater cardiovascular benefits in older adults. Adverse effects associated with SGLT2 inhibitors, such as weight loss, volume depletion, urinary incontinence, and genitourinary infections, may be a concern in older patients with T2D who are using these medications.
Because the insulin-secreting capacity of the pancreas declines with age, insulin therapy may be required for treatment of T2D in older patients. Insulin therapy can be complex and consideration must be given to patients’ social circumstances, as well as their physical and cognitive abilities. Older adults may need adaptive strategies, such as additional lighting, magnification glass, and premixed syringes. Simplification of complex insulin therapy (discontinuation of prandial insulin or sliding scale, changing timing of basal insulin) and use of insulin analogs with lower hypoglycemia risks should be considered. Weight gain as a result of insulin therapy may be beneficial in older adults with sarcopenia or frailty.
T2D technology for glycemic improvement
There have been major technological advancements in diabetes therapy. Continuous glucose monitors (CGMs) and automated insulin delivery systems can improve glycemic control, decrease the rate of hypoglycemia, and enhance the quality of life of older patients. Most of the studies evaluating the use of automated insulin delivery systems in older patients have focused on those with type 1 diabetes and demonstrated improvement in glycemic control and/or reduced hypoglycemia. The DIAMOND trial demonstrated improved A1c and reduced glycemic variability with the use of CGM in adults older than 60 years with either type 1 or type 2 diabetes on multiple daily injections. Bluetooth-enabled “smart” insulin pens, which record the time and dose of insulin administrations, can also be a great asset in caring for older patients, especially those with cognitive impairment. With better insurance coverage, diabetes technologies may become more accessible and an asset in treating older patients with T2D.
In conclusion, management of T2D in older adults requires an individualized approach because of the heterogeneity in their health and functional status. Because cardiovascular disease is the leading cause of mortality in older patients with T2D, treatment plans should also address frequently coexisting cardiovascular risk factors, such as hypertension and hyperlipidemia. Clinicians should consider patients’ overall health, comorbidities, cognitive and functional status, social support systems, preferences, and life expectancy when developing individualized therapeutic plans.
Dr. Gunawan is an assistant professor in the department of internal medicine at UT Southwestern Medical Center, Dallas. She reported no relevant conflicts of interest.
A version of this article first appeared on Medscape.com.
Osteoporosis and osteopenia: Latest treatment recommendations
This transcript has been edited for clarity.
I’m Dr. Neil Skolnik. Today’s topic is the new osteoporosis treatment guidelines issued by the American College of Physicians (ACP). The focus of the guidelines is treatment of osteoporosis. But first, I want to discuss screening.
In its 2018 statement, the U.S. Preventive Services Task Force (USPSTF) says that osteoporosis should be screened for in women older than 65 years of age, and those who are younger who are at increased risk based on a risk assessment tool (usually the FRAX tool). There is not enough evidence to weigh in for or against screening men. The other large organization that weighs in on screening is the Bone Health & Osteoporosis Foundation, which agrees with the USPSTF, but in addition says that we should be screening men over age 70 and men who are younger (age 50 to 69) who have risk factors. We should also screen anyone who has a fracture after low impact or no trauma.
Let’s now go on to the ACP treatment guidelines. Osteoporosis is defined as bone mineral density at the femoral neck or the lumbar spine, or both, with a T score less than -2.5.
For postmenopausal women with osteoporosis, you should use a bisphosphonate as first-line treatment to reduce the risk for future fractures. This is given a strong recommendation based on a high certainty of evidence. Bisphosphonates vs. placebo over 3 years leads to one fewer hip fracture per 150 patients treated and one fewer vertebral fracture per 50 people treated.
All the other recommendations in the guidelines are considered “conditional recommendations” that are correct for most people. But whether they make sense for an individual patient depends upon other details, as well as their values and preferences. For instance, treatment of osteoporosis in men is given a conditional recommendation, not because the evidence suggests that it’s not as effective, but because there is not as much evidence. Initial treatment for a man with osteoporosis is with bisphosphonates. Men do get osteoporosis and account for about 30% of hip fractures. This is not a surprise to anyone who takes care of older adults.
For postmenopausal women or men who you would want to treat but who can’t tolerate a bisphosphonate, then the recommendation is to use a RANK ligand inhibitor. Denosumab can be used as second-line treatment to reduce the risk for fractures. Remember, bisphosphonates and denosumab are antiresorptive drugs, meaning they slow the progression of osteoporosis. The anabolic drugs, on the other hand, such as the sclerostin inhibitor romosozumab and recombinant human parathyroid hormone (PTH) teriparatide, increase bone density. The anabolic agents should be used only in women with primary osteoporosis who are at very high risk for fractures, and use of these agents always needs to be followed by an antiresorptive agent, because otherwise there’s a risk for rebound osteoporosis and an increased risk for vertebral fractures.
Now, how about osteopenia? The guidelines recommend that for women over 65 with osteopenia, use an individualized approach influenced by the level of risk for fracture, including increased age, low body weight, current smoking, hip fracture in a parent, fall risk, and a personal history of fracture. The guidelines note that increasing the duration of bisphosphonate therapy beyond 3-5 years does reduce the risk for new vertebral fractures, but it doesn’t reduce the risk for other fractures and it increases the risk for osteonecrosis of the jaw and atypical hip fractures. Therefore, the guidelines say that we should use bisphosphonates only for 3-5 years unless someone is at extremely high risk. It’s also important to note that there’s a fivefold higher risk for atypical femoral fractures among Asian women.
Don’t forget about adequate vitamin D and calcium. And most importantly, don’t forget about exercise, particularly exercise aimed at improving balance and quadriceps strength, which helps prevent falls.
Dr. Skolnik is professor, department of family medicine, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, and associate director, department of family medicine, Abington (Pa.) Jefferson Health. He disclosed ties with AstraZeneca, Bayer, Boehringer Ingelheim, Eli Lilly, GlaxoSmithKline, Merck, Sanofi, Sanofi Pasteur, and Teva.
A version of this article originally appeared on Medscape.com.
This transcript has been edited for clarity.
I’m Dr. Neil Skolnik. Today’s topic is the new osteoporosis treatment guidelines issued by the American College of Physicians (ACP). The focus of the guidelines is treatment of osteoporosis. But first, I want to discuss screening.
In its 2018 statement, the U.S. Preventive Services Task Force (USPSTF) says that osteoporosis should be screened for in women older than 65 years of age, and those who are younger who are at increased risk based on a risk assessment tool (usually the FRAX tool). There is not enough evidence to weigh in for or against screening men. The other large organization that weighs in on screening is the Bone Health & Osteoporosis Foundation, which agrees with the USPSTF, but in addition says that we should be screening men over age 70 and men who are younger (age 50 to 69) who have risk factors. We should also screen anyone who has a fracture after low impact or no trauma.
Let’s now go on to the ACP treatment guidelines. Osteoporosis is defined as bone mineral density at the femoral neck or the lumbar spine, or both, with a T score less than -2.5.
For postmenopausal women with osteoporosis, you should use a bisphosphonate as first-line treatment to reduce the risk for future fractures. This is given a strong recommendation based on a high certainty of evidence. Bisphosphonates vs. placebo over 3 years leads to one fewer hip fracture per 150 patients treated and one fewer vertebral fracture per 50 people treated.
All the other recommendations in the guidelines are considered “conditional recommendations” that are correct for most people. But whether they make sense for an individual patient depends upon other details, as well as their values and preferences. For instance, treatment of osteoporosis in men is given a conditional recommendation, not because the evidence suggests that it’s not as effective, but because there is not as much evidence. Initial treatment for a man with osteoporosis is with bisphosphonates. Men do get osteoporosis and account for about 30% of hip fractures. This is not a surprise to anyone who takes care of older adults.
For postmenopausal women or men who you would want to treat but who can’t tolerate a bisphosphonate, then the recommendation is to use a RANK ligand inhibitor. Denosumab can be used as second-line treatment to reduce the risk for fractures. Remember, bisphosphonates and denosumab are antiresorptive drugs, meaning they slow the progression of osteoporosis. The anabolic drugs, on the other hand, such as the sclerostin inhibitor romosozumab and recombinant human parathyroid hormone (PTH) teriparatide, increase bone density. The anabolic agents should be used only in women with primary osteoporosis who are at very high risk for fractures, and use of these agents always needs to be followed by an antiresorptive agent, because otherwise there’s a risk for rebound osteoporosis and an increased risk for vertebral fractures.
Now, how about osteopenia? The guidelines recommend that for women over 65 with osteopenia, use an individualized approach influenced by the level of risk for fracture, including increased age, low body weight, current smoking, hip fracture in a parent, fall risk, and a personal history of fracture. The guidelines note that increasing the duration of bisphosphonate therapy beyond 3-5 years does reduce the risk for new vertebral fractures, but it doesn’t reduce the risk for other fractures and it increases the risk for osteonecrosis of the jaw and atypical hip fractures. Therefore, the guidelines say that we should use bisphosphonates only for 3-5 years unless someone is at extremely high risk. It’s also important to note that there’s a fivefold higher risk for atypical femoral fractures among Asian women.
Don’t forget about adequate vitamin D and calcium. And most importantly, don’t forget about exercise, particularly exercise aimed at improving balance and quadriceps strength, which helps prevent falls.
Dr. Skolnik is professor, department of family medicine, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, and associate director, department of family medicine, Abington (Pa.) Jefferson Health. He disclosed ties with AstraZeneca, Bayer, Boehringer Ingelheim, Eli Lilly, GlaxoSmithKline, Merck, Sanofi, Sanofi Pasteur, and Teva.
A version of this article originally appeared on Medscape.com.
This transcript has been edited for clarity.
I’m Dr. Neil Skolnik. Today’s topic is the new osteoporosis treatment guidelines issued by the American College of Physicians (ACP). The focus of the guidelines is treatment of osteoporosis. But first, I want to discuss screening.
In its 2018 statement, the U.S. Preventive Services Task Force (USPSTF) says that osteoporosis should be screened for in women older than 65 years of age, and those who are younger who are at increased risk based on a risk assessment tool (usually the FRAX tool). There is not enough evidence to weigh in for or against screening men. The other large organization that weighs in on screening is the Bone Health & Osteoporosis Foundation, which agrees with the USPSTF, but in addition says that we should be screening men over age 70 and men who are younger (age 50 to 69) who have risk factors. We should also screen anyone who has a fracture after low impact or no trauma.
Let’s now go on to the ACP treatment guidelines. Osteoporosis is defined as bone mineral density at the femoral neck or the lumbar spine, or both, with a T score less than -2.5.
For postmenopausal women with osteoporosis, you should use a bisphosphonate as first-line treatment to reduce the risk for future fractures. This is given a strong recommendation based on a high certainty of evidence. Bisphosphonates vs. placebo over 3 years leads to one fewer hip fracture per 150 patients treated and one fewer vertebral fracture per 50 people treated.
All the other recommendations in the guidelines are considered “conditional recommendations” that are correct for most people. But whether they make sense for an individual patient depends upon other details, as well as their values and preferences. For instance, treatment of osteoporosis in men is given a conditional recommendation, not because the evidence suggests that it’s not as effective, but because there is not as much evidence. Initial treatment for a man with osteoporosis is with bisphosphonates. Men do get osteoporosis and account for about 30% of hip fractures. This is not a surprise to anyone who takes care of older adults.
For postmenopausal women or men who you would want to treat but who can’t tolerate a bisphosphonate, then the recommendation is to use a RANK ligand inhibitor. Denosumab can be used as second-line treatment to reduce the risk for fractures. Remember, bisphosphonates and denosumab are antiresorptive drugs, meaning they slow the progression of osteoporosis. The anabolic drugs, on the other hand, such as the sclerostin inhibitor romosozumab and recombinant human parathyroid hormone (PTH) teriparatide, increase bone density. The anabolic agents should be used only in women with primary osteoporosis who are at very high risk for fractures, and use of these agents always needs to be followed by an antiresorptive agent, because otherwise there’s a risk for rebound osteoporosis and an increased risk for vertebral fractures.
Now, how about osteopenia? The guidelines recommend that for women over 65 with osteopenia, use an individualized approach influenced by the level of risk for fracture, including increased age, low body weight, current smoking, hip fracture in a parent, fall risk, and a personal history of fracture. The guidelines note that increasing the duration of bisphosphonate therapy beyond 3-5 years does reduce the risk for new vertebral fractures, but it doesn’t reduce the risk for other fractures and it increases the risk for osteonecrosis of the jaw and atypical hip fractures. Therefore, the guidelines say that we should use bisphosphonates only for 3-5 years unless someone is at extremely high risk. It’s also important to note that there’s a fivefold higher risk for atypical femoral fractures among Asian women.
Don’t forget about adequate vitamin D and calcium. And most importantly, don’t forget about exercise, particularly exercise aimed at improving balance and quadriceps strength, which helps prevent falls.
Dr. Skolnik is professor, department of family medicine, Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, and associate director, department of family medicine, Abington (Pa.) Jefferson Health. He disclosed ties with AstraZeneca, Bayer, Boehringer Ingelheim, Eli Lilly, GlaxoSmithKline, Merck, Sanofi, Sanofi Pasteur, and Teva.
A version of this article originally appeared on Medscape.com.
Unawareness of memory slips could indicate risk for Alzheimer’s
Everyone’s memory fades to some extent as we age, but not everyone will develop Alzheimer’s disease. Screening the most likely people to develop Alzheimer’s remains an ongoing challenge, as some people present only unambiguous symptoms once their disease is advanced.
A new study in JAMA Network Open suggests that one early clue is found in people’s own self-perception of their memory skills. People who are more aware of their own declining memory capacity are less likely to develop Alzheimer’s, the study suggests.
“Some people are very aware of changes in their memory, but many people are unaware,” said study author Patrizia Vannini, PhD, a neurologist at Brigham and Women’s Hospital in Boston. There are gradations of unawareness of memory loss, Dr. Vannini said, from complete unawareness that anything is wrong, to a partial unawareness that memory is declining.
The study compared the records of 436 participants in the Alzheimer’s Disease Neuroimaging Initiative, an Alzheimer’s research institute housed at the University of Southern California. More than 90% of the participants were White, and generally had a college education. Their average age was 75 years, and 53% of participants were women.
Dr. Vannini and colleagues tracked people whose cognitive function was normal at the beginning of the study, based on the Clinical Dementia Rating. Throughout the course of the study, which included data from 2010 to 2021, 91 of the 436 participants experienced a sustained decline in their Clinical Dementia Rating scores, indicating a risk for eventual Alzheimer’s, whereas the other participants held steady.
The people who declined in cognitive function were less aware of slips in their memory, as assessed by discrepancies between people’s self-reports of their own memory skills and the perceptions of someone in their lives. For this part of the study, Dr. Vannini and colleagues used the Everyday Cognition Questionnaire, which evaluates memory tasks such as shopping without a grocery list or recalling conversations from a few days ago. Both the participant and the study partner rated their performance on such tasks compared to 10 years earlier. Those who were less aware of their memory slips were more likely to experience declines in the Clinical Dementia Rating, compared with people with a heightened concern about memory loss (as measured by being more concerned about memory decline than their study partners).
“Partial or complete unawareness is often related to delayed diagnosis of Alzheimer’s, because the patient is unaware they are having problems,” Dr. Vannini said, adding that this is associated with a poorer prognosis as well.
Implications for clinicians
Soo Borson, MD, professor of clinical family medicine at the University of Southern California and coleader of a CDC-funded early dementia detection center at New York University, pointed out that sometimes people are genuinely unaware that their memory is declining, while at other times they know it all too well but say everything is fine when a doctor asks about their current memory status. That may be because people fear the label of “Alzheimer’s,” Dr. Borson suggested, or simply because they don’t want to start a protracted diagnostic pathway that could involve lots of tests and time.
Dr. Borson, who was not involved in the study, noted that the population was predominantly White and well-educated, and by definition included people who were concerned enough about potential memory loss to become part of an Alzheimer’s research network. This limits the generalizability of this study’s results to other populations, Dr. Borson said.
Despite that limitation, in Dr. Borson’s view the study points to the continued importance of clinicians (ideally a primary care doctor who knows the patient well) engaging with patients about their brain health once they reach midlife. A doctor could ask if patients have noticed a decline in their thinking or memory over the last year, for example, or a more open-ended question about any memory concerns.
Although some patients may choose to withhold concerns about their memory, Dr. Borson acknowledged, the overall thrust of these questions is to provide a safe space for patients to air their concerns if they so choose. In some cases it would be appropriate to do a simple memory test on the spot, and then proceed accordingly – either for further tests if something of concern emerges, or to reassure the patient if the test doesn’t yield anything of note. In the latter case some patients will still want further tests for additional reassurance, and Dr. Borson thinks doctors should facilitate that request even if in their own judgment nothing is wrong.
“This is not like testing for impaired kidney function by doing a serum creatinine test,” Dr. Borson said. While the orientation of the health care system is toward quick and easy answers for everything, detecting possible dementia eludes such an approach.
Dr. Vannini reports funding from the National Institutes of Health National Institute on Aging. Dr. Borson reported no disclosures.
Everyone’s memory fades to some extent as we age, but not everyone will develop Alzheimer’s disease. Screening the most likely people to develop Alzheimer’s remains an ongoing challenge, as some people present only unambiguous symptoms once their disease is advanced.
A new study in JAMA Network Open suggests that one early clue is found in people’s own self-perception of their memory skills. People who are more aware of their own declining memory capacity are less likely to develop Alzheimer’s, the study suggests.
“Some people are very aware of changes in their memory, but many people are unaware,” said study author Patrizia Vannini, PhD, a neurologist at Brigham and Women’s Hospital in Boston. There are gradations of unawareness of memory loss, Dr. Vannini said, from complete unawareness that anything is wrong, to a partial unawareness that memory is declining.
The study compared the records of 436 participants in the Alzheimer’s Disease Neuroimaging Initiative, an Alzheimer’s research institute housed at the University of Southern California. More than 90% of the participants were White, and generally had a college education. Their average age was 75 years, and 53% of participants were women.
Dr. Vannini and colleagues tracked people whose cognitive function was normal at the beginning of the study, based on the Clinical Dementia Rating. Throughout the course of the study, which included data from 2010 to 2021, 91 of the 436 participants experienced a sustained decline in their Clinical Dementia Rating scores, indicating a risk for eventual Alzheimer’s, whereas the other participants held steady.
The people who declined in cognitive function were less aware of slips in their memory, as assessed by discrepancies between people’s self-reports of their own memory skills and the perceptions of someone in their lives. For this part of the study, Dr. Vannini and colleagues used the Everyday Cognition Questionnaire, which evaluates memory tasks such as shopping without a grocery list or recalling conversations from a few days ago. Both the participant and the study partner rated their performance on such tasks compared to 10 years earlier. Those who were less aware of their memory slips were more likely to experience declines in the Clinical Dementia Rating, compared with people with a heightened concern about memory loss (as measured by being more concerned about memory decline than their study partners).
“Partial or complete unawareness is often related to delayed diagnosis of Alzheimer’s, because the patient is unaware they are having problems,” Dr. Vannini said, adding that this is associated with a poorer prognosis as well.
Implications for clinicians
Soo Borson, MD, professor of clinical family medicine at the University of Southern California and coleader of a CDC-funded early dementia detection center at New York University, pointed out that sometimes people are genuinely unaware that their memory is declining, while at other times they know it all too well but say everything is fine when a doctor asks about their current memory status. That may be because people fear the label of “Alzheimer’s,” Dr. Borson suggested, or simply because they don’t want to start a protracted diagnostic pathway that could involve lots of tests and time.
Dr. Borson, who was not involved in the study, noted that the population was predominantly White and well-educated, and by definition included people who were concerned enough about potential memory loss to become part of an Alzheimer’s research network. This limits the generalizability of this study’s results to other populations, Dr. Borson said.
Despite that limitation, in Dr. Borson’s view the study points to the continued importance of clinicians (ideally a primary care doctor who knows the patient well) engaging with patients about their brain health once they reach midlife. A doctor could ask if patients have noticed a decline in their thinking or memory over the last year, for example, or a more open-ended question about any memory concerns.
Although some patients may choose to withhold concerns about their memory, Dr. Borson acknowledged, the overall thrust of these questions is to provide a safe space for patients to air their concerns if they so choose. In some cases it would be appropriate to do a simple memory test on the spot, and then proceed accordingly – either for further tests if something of concern emerges, or to reassure the patient if the test doesn’t yield anything of note. In the latter case some patients will still want further tests for additional reassurance, and Dr. Borson thinks doctors should facilitate that request even if in their own judgment nothing is wrong.
“This is not like testing for impaired kidney function by doing a serum creatinine test,” Dr. Borson said. While the orientation of the health care system is toward quick and easy answers for everything, detecting possible dementia eludes such an approach.
Dr. Vannini reports funding from the National Institutes of Health National Institute on Aging. Dr. Borson reported no disclosures.
Everyone’s memory fades to some extent as we age, but not everyone will develop Alzheimer’s disease. Screening the most likely people to develop Alzheimer’s remains an ongoing challenge, as some people present only unambiguous symptoms once their disease is advanced.
A new study in JAMA Network Open suggests that one early clue is found in people’s own self-perception of their memory skills. People who are more aware of their own declining memory capacity are less likely to develop Alzheimer’s, the study suggests.
“Some people are very aware of changes in their memory, but many people are unaware,” said study author Patrizia Vannini, PhD, a neurologist at Brigham and Women’s Hospital in Boston. There are gradations of unawareness of memory loss, Dr. Vannini said, from complete unawareness that anything is wrong, to a partial unawareness that memory is declining.
The study compared the records of 436 participants in the Alzheimer’s Disease Neuroimaging Initiative, an Alzheimer’s research institute housed at the University of Southern California. More than 90% of the participants were White, and generally had a college education. Their average age was 75 years, and 53% of participants were women.
Dr. Vannini and colleagues tracked people whose cognitive function was normal at the beginning of the study, based on the Clinical Dementia Rating. Throughout the course of the study, which included data from 2010 to 2021, 91 of the 436 participants experienced a sustained decline in their Clinical Dementia Rating scores, indicating a risk for eventual Alzheimer’s, whereas the other participants held steady.
The people who declined in cognitive function were less aware of slips in their memory, as assessed by discrepancies between people’s self-reports of their own memory skills and the perceptions of someone in their lives. For this part of the study, Dr. Vannini and colleagues used the Everyday Cognition Questionnaire, which evaluates memory tasks such as shopping without a grocery list or recalling conversations from a few days ago. Both the participant and the study partner rated their performance on such tasks compared to 10 years earlier. Those who were less aware of their memory slips were more likely to experience declines in the Clinical Dementia Rating, compared with people with a heightened concern about memory loss (as measured by being more concerned about memory decline than their study partners).
“Partial or complete unawareness is often related to delayed diagnosis of Alzheimer’s, because the patient is unaware they are having problems,” Dr. Vannini said, adding that this is associated with a poorer prognosis as well.
Implications for clinicians
Soo Borson, MD, professor of clinical family medicine at the University of Southern California and coleader of a CDC-funded early dementia detection center at New York University, pointed out that sometimes people are genuinely unaware that their memory is declining, while at other times they know it all too well but say everything is fine when a doctor asks about their current memory status. That may be because people fear the label of “Alzheimer’s,” Dr. Borson suggested, or simply because they don’t want to start a protracted diagnostic pathway that could involve lots of tests and time.
Dr. Borson, who was not involved in the study, noted that the population was predominantly White and well-educated, and by definition included people who were concerned enough about potential memory loss to become part of an Alzheimer’s research network. This limits the generalizability of this study’s results to other populations, Dr. Borson said.
Despite that limitation, in Dr. Borson’s view the study points to the continued importance of clinicians (ideally a primary care doctor who knows the patient well) engaging with patients about their brain health once they reach midlife. A doctor could ask if patients have noticed a decline in their thinking or memory over the last year, for example, or a more open-ended question about any memory concerns.
Although some patients may choose to withhold concerns about their memory, Dr. Borson acknowledged, the overall thrust of these questions is to provide a safe space for patients to air their concerns if they so choose. In some cases it would be appropriate to do a simple memory test on the spot, and then proceed accordingly – either for further tests if something of concern emerges, or to reassure the patient if the test doesn’t yield anything of note. In the latter case some patients will still want further tests for additional reassurance, and Dr. Borson thinks doctors should facilitate that request even if in their own judgment nothing is wrong.
“This is not like testing for impaired kidney function by doing a serum creatinine test,” Dr. Borson said. While the orientation of the health care system is toward quick and easy answers for everything, detecting possible dementia eludes such an approach.
Dr. Vannini reports funding from the National Institutes of Health National Institute on Aging. Dr. Borson reported no disclosures.
FROM JAMA NETWORK OPEN
Food insecurity linked to more rapid cognitive decline in seniors
Food insecurity is linked to a more rapid decline in executive function in older adults, a new study shows.
The findings were reported just weeks after a pandemic-era expansion in Supplemental Nutrition Assistance Program benefits ended, leading to less food assistance for about 5 million people over age 60 who participate in the program.
“Even though we found only a very small association between food insecurity and executive function, it’s still meaningful, because food insecurity is something we can prevent,” lead investigator Boeun Kim, PhD, MPH, RN, postdoctoral fellow at Johns Hopkins University School of Nursing, Baltimore, told this news organization.
The findings were published online in JAMA Network Open.
National data
The number of Americans over 60 with food insecurity has more than doubled since 2007, with an estimated 5.2 million older adults reporting food insecurity in 2020.
Prior studies have linked malnutrition and food insecurity to a decline in cognitive function. Participating in food assistance programs such as SNAP is associated with slower memory decline in older adults.
However, to date, there has been no longitudinal study that has used data from a nationally representative sample of older Americans, which, Dr. Kim said, could limit generalizability of the findings.
To address that issue, investigators analyzed data from 3,037 participants in the National Health and Aging Trends Study, which includes community dwellers age 65 and older who receive Medicare.
Participants reported food insecurity over 7 years, from 2012 to 2019. Data on immediate memory, delayed memory, and executive function were from 2013 to 2020.
Food insecurity was defined as going without groceries due to limited ability or social support; a lack of hot meals related to functional limitation or no help; going without eating because of the inability to feed oneself or no available support; skipping meals due to insufficient food or money; or skipping meals for 5 days or more.
Immediate and delayed recall were assessed using a 10-item word-list memory task, and executive function was measured using a clock drawing test. Each year’s cognitive functions were linked to the prior year’s food insecurity data.
Over 7 years, 417 people, or 12.1%, experienced food insecurity at least once.
Those with food insecurity were more likely to be older, female, part of racial and ethnic minority groups, living alone, obese, and have a lower income and educational attainment, depressive symptoms, social isolation and disability, compared with those without food insecurity.
After adjusting for age, sex, race/ethnicity, educational level, income, marital status, body mass index, functional disability, social isolation, and other potential confounders, researchers found that food insecurity was associated with a more rapid decline in executive function (mean difference in annual change in executive function score, −0.04; 95% confidence interval, −0.09 to −0.003).
Food insecurity was not associated with baseline cognitive function scores or changes in immediate or delayed recall.
“Clinicians should be aware of the experience of food insecurity and the higher risk of cognitive decline so maybe they could do universal screening and refer people with food insecurity to programs that can help them access nutritious meals,” Dr. Kim said.
A sign of other problems?
Thomas Vidic, MD, said food insecurity often goes hand-in-hand with lack of medication adherence, lack of regular medical care, and a host of other issues. Dr. Vidic is a neurologist at the Elkhart Clinic, Ind., and an adjunct clinical professor of neurology at Indiana University.
“When a person has food insecurity, they likely have other problems, and they’re going to degenerate faster,” said Dr. Vidic, who was not part of the study. “This is one important component, and it’s one more way of getting a handle on people who are failing.”
Dr. Vidic, who has dealt with the issue of food insecurity with his own patients, said he suspects the self-report nature of the study may hide the true scale of the problem.
“I suspect the numbers might actually be higher,” he said, adding that the study fills a gap in the literature with a large, nationally representative sample.
“We’re looking for issues to help with the elderly as far as what can we do to keep dementia from progressing,” he said. “There are some things that make sense, but we’ve never had this kind of data before.”
The study was funded by the National Institute on Aging. Dr. Kim and Dr. Vidic have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Food insecurity is linked to a more rapid decline in executive function in older adults, a new study shows.
The findings were reported just weeks after a pandemic-era expansion in Supplemental Nutrition Assistance Program benefits ended, leading to less food assistance for about 5 million people over age 60 who participate in the program.
“Even though we found only a very small association between food insecurity and executive function, it’s still meaningful, because food insecurity is something we can prevent,” lead investigator Boeun Kim, PhD, MPH, RN, postdoctoral fellow at Johns Hopkins University School of Nursing, Baltimore, told this news organization.
The findings were published online in JAMA Network Open.
National data
The number of Americans over 60 with food insecurity has more than doubled since 2007, with an estimated 5.2 million older adults reporting food insecurity in 2020.
Prior studies have linked malnutrition and food insecurity to a decline in cognitive function. Participating in food assistance programs such as SNAP is associated with slower memory decline in older adults.
However, to date, there has been no longitudinal study that has used data from a nationally representative sample of older Americans, which, Dr. Kim said, could limit generalizability of the findings.
To address that issue, investigators analyzed data from 3,037 participants in the National Health and Aging Trends Study, which includes community dwellers age 65 and older who receive Medicare.
Participants reported food insecurity over 7 years, from 2012 to 2019. Data on immediate memory, delayed memory, and executive function were from 2013 to 2020.
Food insecurity was defined as going without groceries due to limited ability or social support; a lack of hot meals related to functional limitation or no help; going without eating because of the inability to feed oneself or no available support; skipping meals due to insufficient food or money; or skipping meals for 5 days or more.
Immediate and delayed recall were assessed using a 10-item word-list memory task, and executive function was measured using a clock drawing test. Each year’s cognitive functions were linked to the prior year’s food insecurity data.
Over 7 years, 417 people, or 12.1%, experienced food insecurity at least once.
Those with food insecurity were more likely to be older, female, part of racial and ethnic minority groups, living alone, obese, and have a lower income and educational attainment, depressive symptoms, social isolation and disability, compared with those without food insecurity.
After adjusting for age, sex, race/ethnicity, educational level, income, marital status, body mass index, functional disability, social isolation, and other potential confounders, researchers found that food insecurity was associated with a more rapid decline in executive function (mean difference in annual change in executive function score, −0.04; 95% confidence interval, −0.09 to −0.003).
Food insecurity was not associated with baseline cognitive function scores or changes in immediate or delayed recall.
“Clinicians should be aware of the experience of food insecurity and the higher risk of cognitive decline so maybe they could do universal screening and refer people with food insecurity to programs that can help them access nutritious meals,” Dr. Kim said.
A sign of other problems?
Thomas Vidic, MD, said food insecurity often goes hand-in-hand with lack of medication adherence, lack of regular medical care, and a host of other issues. Dr. Vidic is a neurologist at the Elkhart Clinic, Ind., and an adjunct clinical professor of neurology at Indiana University.
“When a person has food insecurity, they likely have other problems, and they’re going to degenerate faster,” said Dr. Vidic, who was not part of the study. “This is one important component, and it’s one more way of getting a handle on people who are failing.”
Dr. Vidic, who has dealt with the issue of food insecurity with his own patients, said he suspects the self-report nature of the study may hide the true scale of the problem.
“I suspect the numbers might actually be higher,” he said, adding that the study fills a gap in the literature with a large, nationally representative sample.
“We’re looking for issues to help with the elderly as far as what can we do to keep dementia from progressing,” he said. “There are some things that make sense, but we’ve never had this kind of data before.”
The study was funded by the National Institute on Aging. Dr. Kim and Dr. Vidic have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Food insecurity is linked to a more rapid decline in executive function in older adults, a new study shows.
The findings were reported just weeks after a pandemic-era expansion in Supplemental Nutrition Assistance Program benefits ended, leading to less food assistance for about 5 million people over age 60 who participate in the program.
“Even though we found only a very small association between food insecurity and executive function, it’s still meaningful, because food insecurity is something we can prevent,” lead investigator Boeun Kim, PhD, MPH, RN, postdoctoral fellow at Johns Hopkins University School of Nursing, Baltimore, told this news organization.
The findings were published online in JAMA Network Open.
National data
The number of Americans over 60 with food insecurity has more than doubled since 2007, with an estimated 5.2 million older adults reporting food insecurity in 2020.
Prior studies have linked malnutrition and food insecurity to a decline in cognitive function. Participating in food assistance programs such as SNAP is associated with slower memory decline in older adults.
However, to date, there has been no longitudinal study that has used data from a nationally representative sample of older Americans, which, Dr. Kim said, could limit generalizability of the findings.
To address that issue, investigators analyzed data from 3,037 participants in the National Health and Aging Trends Study, which includes community dwellers age 65 and older who receive Medicare.
Participants reported food insecurity over 7 years, from 2012 to 2019. Data on immediate memory, delayed memory, and executive function were from 2013 to 2020.
Food insecurity was defined as going without groceries due to limited ability or social support; a lack of hot meals related to functional limitation or no help; going without eating because of the inability to feed oneself or no available support; skipping meals due to insufficient food or money; or skipping meals for 5 days or more.
Immediate and delayed recall were assessed using a 10-item word-list memory task, and executive function was measured using a clock drawing test. Each year’s cognitive functions were linked to the prior year’s food insecurity data.
Over 7 years, 417 people, or 12.1%, experienced food insecurity at least once.
Those with food insecurity were more likely to be older, female, part of racial and ethnic minority groups, living alone, obese, and have a lower income and educational attainment, depressive symptoms, social isolation and disability, compared with those without food insecurity.
After adjusting for age, sex, race/ethnicity, educational level, income, marital status, body mass index, functional disability, social isolation, and other potential confounders, researchers found that food insecurity was associated with a more rapid decline in executive function (mean difference in annual change in executive function score, −0.04; 95% confidence interval, −0.09 to −0.003).
Food insecurity was not associated with baseline cognitive function scores or changes in immediate or delayed recall.
“Clinicians should be aware of the experience of food insecurity and the higher risk of cognitive decline so maybe they could do universal screening and refer people with food insecurity to programs that can help them access nutritious meals,” Dr. Kim said.
A sign of other problems?
Thomas Vidic, MD, said food insecurity often goes hand-in-hand with lack of medication adherence, lack of regular medical care, and a host of other issues. Dr. Vidic is a neurologist at the Elkhart Clinic, Ind., and an adjunct clinical professor of neurology at Indiana University.
“When a person has food insecurity, they likely have other problems, and they’re going to degenerate faster,” said Dr. Vidic, who was not part of the study. “This is one important component, and it’s one more way of getting a handle on people who are failing.”
Dr. Vidic, who has dealt with the issue of food insecurity with his own patients, said he suspects the self-report nature of the study may hide the true scale of the problem.
“I suspect the numbers might actually be higher,” he said, adding that the study fills a gap in the literature with a large, nationally representative sample.
“We’re looking for issues to help with the elderly as far as what can we do to keep dementia from progressing,” he said. “There are some things that make sense, but we’ve never had this kind of data before.”
The study was funded by the National Institute on Aging. Dr. Kim and Dr. Vidic have reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Parathyroidectomy does not preserve kidney function in seniors
Early parathyroidectomy within 1 year of diagnosis of primary hyperparathyroidism (PHPT) did not reduce the risk of a sustained decline in kidney function, measured by a decline in estimated glomerular filtration rate (eGFR) of at least 50%, compared with observation (no surgery) in adults aged 60 and older.
Early parathyroidectomy was, however, associated with a reduced adjusted risk of this decline in kidney function in patients with newly diagnosed PHPT who were younger than age 60.
The findings, based on data from close to 43,000 veterans, were published online in Annals of Internal Medicine.
“The important takeaway from our study is that for older adults [age 60 or older] with primary hyperparathyroidism, preservation of kidney function should not be a primary consideration when making decisions about whether to undergo parathyroidectomy,” lead author Carolyn D. Seib, MD, told this news organization.
“It is important that physicians also discuss with their patients the potential long-term benefits of parathyroidectomy related to a reduced risk of fractures, kidney stones, and cardiovascular disease, and improved quality of life, in addition to the need for lifelong surveillance if surgery is declined, weighing these against an individual patient’s risk of surgery,” said Dr. Seib, a surgeon at Palo Alto (Calif.) VA Medical Center.
“However, in patients younger than 60, early parathyroidectomy may prevent progression to chronic kidney disease (CKD) and should be more strongly considered,” she noted.
Parathyroidectomy, she observed, is a low-risk outpatient surgery for most adults.
“Potential complications of surgery include temporary or permanent hoarseness, hypoparathyroidism (low postoperative parathyroid function), bleeding requiring return to the operating room, and complications related to general anesthesia, all of which are rare,” said Dr. Seib.
“Surgery by a high-volume surgeon is associated with a reduced risk of complications, so patients should seek out an experienced parathyroid surgeon,” she emphasized.
Moreover, parathyroidectomy is the only treatment for primary hyperparathyroidism.
Does parathyroidectomy slow loss of kidney function?
Multidisciplinary guidelines recommend parathyroidectomy, at least in part to mitigate the risk for, and effects related to, the progression of CKD in patients with PHPT and an eGFR below 60 mL/min per 1.73 m2, the researchers wrote.
However, whether parathyroidectomy slows the loss of kidney function in adults with PHPT is not clear.
Guidelines also state that “observation for PHPT disease progression can be considered when patients have no obvious end organ damage (i.e., eGFR > 60 mL/min per 1.73 m2, normal bone mineral density, and no history of kidney stones or fractures),” Dr. Seib noted.
To address the evidence gap, the researchers emulated a randomized target trial using observational data.
In this type of study, Dr. Seib explained, “although patients aren’t randomly assigned to a treatment, complex statistical methods are used to adjust for baseline confounders in an attempt to emulate random treatment assignment and account for bias that may affect the timing of when patients receive treatment.”
Using national Veterans Health Administration data, researchers identified 43,697 veterans with a new biochemical diagnosis of PHPT, defined as elevated parathyroid hormone (> 65 ng/mL) within 6 months of an elevated serum calcium level (> 32.55 mmol/L or >10.2 mg/dL), from 2000 to 2019.
Of these patients, 3,804 underwent parathyroidectomy within 1 year of diagnosis of PHPT, and 39,893 did not, and instead, a watchful waiting approach was adopted.
To be included in the analysis, patients had to have an eGFR above 30 mL/min per 1.73 m2 for 12 months before PHPT diagnosis to exclude secondary or tertiary hyperparathyroidism.
The primary outcome was a sustained decline in eGFR of at least 50% from baseline.
In the overall cohort, patients had a mean pretreatment eGFR of 71.8 mL/min per 1.73 m2. The mean age of patients was 67, 88% were men, and 68% were White.
After a median follow-up of 4.9 years, 6.7% of the patients had a decline in eGFR of at least 50%.
The cumulative incidence of this decline in eGFR was 5.1% at 5 years and 10.8% at 10 years in patients who had had early parathyroidectomy compared with 5.1% and 12.0%, respectively, in patients who did not undergo surgery.
In the overall population, the risk of at least a 50% decline in eGFR was similar in the early parathyroidectomy group versus the observation group (adjusted hazard ratio [HR], 0.98, 95% confidence interval [CI], 0.82-1.16).
However, diving deeper showed that parathyroidectomy was associated with a reduced risk of the primary outcome among patients younger than 60 years (adjusted HR, 0.75, 95% CI, 0.59-0.93) but not among those aged 60 or older (adjusted HR, 1.08, 95% CI, 0.87-1.34).
“When participating in shared decision-making for older adults [age 60 and older] with PHPT, clinicians should not consider parathyroidectomy for potential benefits of preservation of kidney function,” the researchers reiterated.
“For younger patients, clinicians should discuss the potential benefit of parathyroidectomy to reduce the risk for CKD and associated complications in adults with PHPT,” they concluded.
The study was funded by the National Institute on Aging. The authors reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Early parathyroidectomy within 1 year of diagnosis of primary hyperparathyroidism (PHPT) did not reduce the risk of a sustained decline in kidney function, measured by a decline in estimated glomerular filtration rate (eGFR) of at least 50%, compared with observation (no surgery) in adults aged 60 and older.
Early parathyroidectomy was, however, associated with a reduced adjusted risk of this decline in kidney function in patients with newly diagnosed PHPT who were younger than age 60.
The findings, based on data from close to 43,000 veterans, were published online in Annals of Internal Medicine.
“The important takeaway from our study is that for older adults [age 60 or older] with primary hyperparathyroidism, preservation of kidney function should not be a primary consideration when making decisions about whether to undergo parathyroidectomy,” lead author Carolyn D. Seib, MD, told this news organization.
“It is important that physicians also discuss with their patients the potential long-term benefits of parathyroidectomy related to a reduced risk of fractures, kidney stones, and cardiovascular disease, and improved quality of life, in addition to the need for lifelong surveillance if surgery is declined, weighing these against an individual patient’s risk of surgery,” said Dr. Seib, a surgeon at Palo Alto (Calif.) VA Medical Center.
“However, in patients younger than 60, early parathyroidectomy may prevent progression to chronic kidney disease (CKD) and should be more strongly considered,” she noted.
Parathyroidectomy, she observed, is a low-risk outpatient surgery for most adults.
“Potential complications of surgery include temporary or permanent hoarseness, hypoparathyroidism (low postoperative parathyroid function), bleeding requiring return to the operating room, and complications related to general anesthesia, all of which are rare,” said Dr. Seib.
“Surgery by a high-volume surgeon is associated with a reduced risk of complications, so patients should seek out an experienced parathyroid surgeon,” she emphasized.
Moreover, parathyroidectomy is the only treatment for primary hyperparathyroidism.
Does parathyroidectomy slow loss of kidney function?
Multidisciplinary guidelines recommend parathyroidectomy, at least in part to mitigate the risk for, and effects related to, the progression of CKD in patients with PHPT and an eGFR below 60 mL/min per 1.73 m2, the researchers wrote.
However, whether parathyroidectomy slows the loss of kidney function in adults with PHPT is not clear.
Guidelines also state that “observation for PHPT disease progression can be considered when patients have no obvious end organ damage (i.e., eGFR > 60 mL/min per 1.73 m2, normal bone mineral density, and no history of kidney stones or fractures),” Dr. Seib noted.
To address the evidence gap, the researchers emulated a randomized target trial using observational data.
In this type of study, Dr. Seib explained, “although patients aren’t randomly assigned to a treatment, complex statistical methods are used to adjust for baseline confounders in an attempt to emulate random treatment assignment and account for bias that may affect the timing of when patients receive treatment.”
Using national Veterans Health Administration data, researchers identified 43,697 veterans with a new biochemical diagnosis of PHPT, defined as elevated parathyroid hormone (> 65 ng/mL) within 6 months of an elevated serum calcium level (> 32.55 mmol/L or >10.2 mg/dL), from 2000 to 2019.
Of these patients, 3,804 underwent parathyroidectomy within 1 year of diagnosis of PHPT, and 39,893 did not, and instead, a watchful waiting approach was adopted.
To be included in the analysis, patients had to have an eGFR above 30 mL/min per 1.73 m2 for 12 months before PHPT diagnosis to exclude secondary or tertiary hyperparathyroidism.
The primary outcome was a sustained decline in eGFR of at least 50% from baseline.
In the overall cohort, patients had a mean pretreatment eGFR of 71.8 mL/min per 1.73 m2. The mean age of patients was 67, 88% were men, and 68% were White.
After a median follow-up of 4.9 years, 6.7% of the patients had a decline in eGFR of at least 50%.
The cumulative incidence of this decline in eGFR was 5.1% at 5 years and 10.8% at 10 years in patients who had had early parathyroidectomy compared with 5.1% and 12.0%, respectively, in patients who did not undergo surgery.
In the overall population, the risk of at least a 50% decline in eGFR was similar in the early parathyroidectomy group versus the observation group (adjusted hazard ratio [HR], 0.98, 95% confidence interval [CI], 0.82-1.16).
However, diving deeper showed that parathyroidectomy was associated with a reduced risk of the primary outcome among patients younger than 60 years (adjusted HR, 0.75, 95% CI, 0.59-0.93) but not among those aged 60 or older (adjusted HR, 1.08, 95% CI, 0.87-1.34).
“When participating in shared decision-making for older adults [age 60 and older] with PHPT, clinicians should not consider parathyroidectomy for potential benefits of preservation of kidney function,” the researchers reiterated.
“For younger patients, clinicians should discuss the potential benefit of parathyroidectomy to reduce the risk for CKD and associated complications in adults with PHPT,” they concluded.
The study was funded by the National Institute on Aging. The authors reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Early parathyroidectomy within 1 year of diagnosis of primary hyperparathyroidism (PHPT) did not reduce the risk of a sustained decline in kidney function, measured by a decline in estimated glomerular filtration rate (eGFR) of at least 50%, compared with observation (no surgery) in adults aged 60 and older.
Early parathyroidectomy was, however, associated with a reduced adjusted risk of this decline in kidney function in patients with newly diagnosed PHPT who were younger than age 60.
The findings, based on data from close to 43,000 veterans, were published online in Annals of Internal Medicine.
“The important takeaway from our study is that for older adults [age 60 or older] with primary hyperparathyroidism, preservation of kidney function should not be a primary consideration when making decisions about whether to undergo parathyroidectomy,” lead author Carolyn D. Seib, MD, told this news organization.
“It is important that physicians also discuss with their patients the potential long-term benefits of parathyroidectomy related to a reduced risk of fractures, kidney stones, and cardiovascular disease, and improved quality of life, in addition to the need for lifelong surveillance if surgery is declined, weighing these against an individual patient’s risk of surgery,” said Dr. Seib, a surgeon at Palo Alto (Calif.) VA Medical Center.
“However, in patients younger than 60, early parathyroidectomy may prevent progression to chronic kidney disease (CKD) and should be more strongly considered,” she noted.
Parathyroidectomy, she observed, is a low-risk outpatient surgery for most adults.
“Potential complications of surgery include temporary or permanent hoarseness, hypoparathyroidism (low postoperative parathyroid function), bleeding requiring return to the operating room, and complications related to general anesthesia, all of which are rare,” said Dr. Seib.
“Surgery by a high-volume surgeon is associated with a reduced risk of complications, so patients should seek out an experienced parathyroid surgeon,” she emphasized.
Moreover, parathyroidectomy is the only treatment for primary hyperparathyroidism.
Does parathyroidectomy slow loss of kidney function?
Multidisciplinary guidelines recommend parathyroidectomy, at least in part to mitigate the risk for, and effects related to, the progression of CKD in patients with PHPT and an eGFR below 60 mL/min per 1.73 m2, the researchers wrote.
However, whether parathyroidectomy slows the loss of kidney function in adults with PHPT is not clear.
Guidelines also state that “observation for PHPT disease progression can be considered when patients have no obvious end organ damage (i.e., eGFR > 60 mL/min per 1.73 m2, normal bone mineral density, and no history of kidney stones or fractures),” Dr. Seib noted.
To address the evidence gap, the researchers emulated a randomized target trial using observational data.
In this type of study, Dr. Seib explained, “although patients aren’t randomly assigned to a treatment, complex statistical methods are used to adjust for baseline confounders in an attempt to emulate random treatment assignment and account for bias that may affect the timing of when patients receive treatment.”
Using national Veterans Health Administration data, researchers identified 43,697 veterans with a new biochemical diagnosis of PHPT, defined as elevated parathyroid hormone (> 65 ng/mL) within 6 months of an elevated serum calcium level (> 32.55 mmol/L or >10.2 mg/dL), from 2000 to 2019.
Of these patients, 3,804 underwent parathyroidectomy within 1 year of diagnosis of PHPT, and 39,893 did not, and instead, a watchful waiting approach was adopted.
To be included in the analysis, patients had to have an eGFR above 30 mL/min per 1.73 m2 for 12 months before PHPT diagnosis to exclude secondary or tertiary hyperparathyroidism.
The primary outcome was a sustained decline in eGFR of at least 50% from baseline.
In the overall cohort, patients had a mean pretreatment eGFR of 71.8 mL/min per 1.73 m2. The mean age of patients was 67, 88% were men, and 68% were White.
After a median follow-up of 4.9 years, 6.7% of the patients had a decline in eGFR of at least 50%.
The cumulative incidence of this decline in eGFR was 5.1% at 5 years and 10.8% at 10 years in patients who had had early parathyroidectomy compared with 5.1% and 12.0%, respectively, in patients who did not undergo surgery.
In the overall population, the risk of at least a 50% decline in eGFR was similar in the early parathyroidectomy group versus the observation group (adjusted hazard ratio [HR], 0.98, 95% confidence interval [CI], 0.82-1.16).
However, diving deeper showed that parathyroidectomy was associated with a reduced risk of the primary outcome among patients younger than 60 years (adjusted HR, 0.75, 95% CI, 0.59-0.93) but not among those aged 60 or older (adjusted HR, 1.08, 95% CI, 0.87-1.34).
“When participating in shared decision-making for older adults [age 60 and older] with PHPT, clinicians should not consider parathyroidectomy for potential benefits of preservation of kidney function,” the researchers reiterated.
“For younger patients, clinicians should discuss the potential benefit of parathyroidectomy to reduce the risk for CKD and associated complications in adults with PHPT,” they concluded.
The study was funded by the National Institute on Aging. The authors reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM ANNALS OF INTERNAL MEDICINE
Self-fitted and audiologist-fitted hearing aids equal for mild to moderate hearing loss
Self-fitted over-the-counter (OTC) hearing aids may be an effective option for individuals with mild to moderate hearing loss, a small randomized effectiveness trial reports. OTC devices yielded 6-week patient-perceived and clinical outcomes comparable to those with audiologist-fitted hearing aids, In fact, at week 2, the self-fitted group had a small but meaningful advantage on two of the four study outcome measures.
“After support and fine-tuning were provided to the self-fitting (remote support) and audiologist-fitted groups, no clinically meaningful differences were evident in any outcome measures at the end of the 6-week trial,” wrote researchers led by Karina C. De Sousa, PhD, a postdoctoral researcher in the department of speech-language pathology and audiology at the University of Pretoria, South Africa.
Their findings appear in JAMA Otolaryngology–Head & Neck Surgery.
Hearing aid uptake is low even in populations with adequate access to audiological resources, the authors noted, with hearing aid use in U.S. adults who could benefit estimated at about 20%. Currently, an estimated 22.9 million older Americans with audiometric hearing loss do not use hearing aids.
Major barriers have been access and affordability, Dr. De Sousa and associates wrote, and until recently, people with hearing loss could obtain hearing aids only after consultation with a credentialed dispenser. “The World Health Organization estimates that over 2.5 billion people will experience some degree of hearing loss by 2050,” Dr. De Sousa said in an interview. “This new category of self-fitting hearing aids opens up newer care pathways for people with mild to moderate hearing loss.”
The study
From April to August 2022 the trial recruited 68 participants (51.6% men) with mild-to-moderate self-reported hearing loss, a mean age of 63.6 years, and no ear disease within the past 90 days. They were randomized to a self-fitted commercially available device (Lexi Lumen), with instructional material on set-up and remote support, or to the same unit fitted by an audiologist. The majority in both arms were new users and were similar in age and baseline hearing scores.
The primary outcome measure was patient-reported hearing aid benefit, measured by the Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire. This scale evaluates auditory acuity before and after amplification by such criteria as ease of communication, background noise, reverberation, aversiveness, and global hearing status.
Secondary measures included the International Outcome Inventory for Hearing Aids (IOI-HA) and speech recognition in noise measured using an abbreviated speech-in-noise test and a digits-in-noise test. Measures were taken at baseline, week 2, and week 6 after fitting. After the 2-week field trial, the self-fitting arm had an initial advantage on the self-reported APHAB: difference, Cohen d = −.5 (95% confidence interval [CI], −1.0 to 0). It also fared better on the IOI-HA: effect size, r = 0.3 (95% CI, .0 to –.5), but not on speech recognition in noise.
One member of the self-fitting arm withdrew owing to an unrelated middle-ear infection.
“While these results are promising, it is essential to note that OTC hearing aids are not a one-size-fits-all approach,” Dr. De Sousa said. “If a person has ear disease symptoms or hearing loss that is too severe, they have to consult a trained hearing health care professional.” She added that proper use of a self-fitted OTC hearing aid requires a degree of digital proficiency, as many devices are set up using a smartphone.
This study was supported by the National Institutes of Health and by the hearX Group, which provided the Lexie Lumen devices and software support for data collection. Dr. De Sousa reported nonfinancial support from hearX as well as consulting fees from hearX outside of the submitted work. A coauthor reported grant support from the UK’s National Institute for Health and Care Research Manchester Biomedical Research Centre, and fees from hearX during and outside of the study. Another coauthor disclosed fees, equity, and grant support from hearX during the conduct of the study.
Self-fitted over-the-counter (OTC) hearing aids may be an effective option for individuals with mild to moderate hearing loss, a small randomized effectiveness trial reports. OTC devices yielded 6-week patient-perceived and clinical outcomes comparable to those with audiologist-fitted hearing aids, In fact, at week 2, the self-fitted group had a small but meaningful advantage on two of the four study outcome measures.
“After support and fine-tuning were provided to the self-fitting (remote support) and audiologist-fitted groups, no clinically meaningful differences were evident in any outcome measures at the end of the 6-week trial,” wrote researchers led by Karina C. De Sousa, PhD, a postdoctoral researcher in the department of speech-language pathology and audiology at the University of Pretoria, South Africa.
Their findings appear in JAMA Otolaryngology–Head & Neck Surgery.
Hearing aid uptake is low even in populations with adequate access to audiological resources, the authors noted, with hearing aid use in U.S. adults who could benefit estimated at about 20%. Currently, an estimated 22.9 million older Americans with audiometric hearing loss do not use hearing aids.
Major barriers have been access and affordability, Dr. De Sousa and associates wrote, and until recently, people with hearing loss could obtain hearing aids only after consultation with a credentialed dispenser. “The World Health Organization estimates that over 2.5 billion people will experience some degree of hearing loss by 2050,” Dr. De Sousa said in an interview. “This new category of self-fitting hearing aids opens up newer care pathways for people with mild to moderate hearing loss.”
The study
From April to August 2022 the trial recruited 68 participants (51.6% men) with mild-to-moderate self-reported hearing loss, a mean age of 63.6 years, and no ear disease within the past 90 days. They were randomized to a self-fitted commercially available device (Lexi Lumen), with instructional material on set-up and remote support, or to the same unit fitted by an audiologist. The majority in both arms were new users and were similar in age and baseline hearing scores.
The primary outcome measure was patient-reported hearing aid benefit, measured by the Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire. This scale evaluates auditory acuity before and after amplification by such criteria as ease of communication, background noise, reverberation, aversiveness, and global hearing status.
Secondary measures included the International Outcome Inventory for Hearing Aids (IOI-HA) and speech recognition in noise measured using an abbreviated speech-in-noise test and a digits-in-noise test. Measures were taken at baseline, week 2, and week 6 after fitting. After the 2-week field trial, the self-fitting arm had an initial advantage on the self-reported APHAB: difference, Cohen d = −.5 (95% confidence interval [CI], −1.0 to 0). It also fared better on the IOI-HA: effect size, r = 0.3 (95% CI, .0 to –.5), but not on speech recognition in noise.
One member of the self-fitting arm withdrew owing to an unrelated middle-ear infection.
“While these results are promising, it is essential to note that OTC hearing aids are not a one-size-fits-all approach,” Dr. De Sousa said. “If a person has ear disease symptoms or hearing loss that is too severe, they have to consult a trained hearing health care professional.” She added that proper use of a self-fitted OTC hearing aid requires a degree of digital proficiency, as many devices are set up using a smartphone.
This study was supported by the National Institutes of Health and by the hearX Group, which provided the Lexie Lumen devices and software support for data collection. Dr. De Sousa reported nonfinancial support from hearX as well as consulting fees from hearX outside of the submitted work. A coauthor reported grant support from the UK’s National Institute for Health and Care Research Manchester Biomedical Research Centre, and fees from hearX during and outside of the study. Another coauthor disclosed fees, equity, and grant support from hearX during the conduct of the study.
Self-fitted over-the-counter (OTC) hearing aids may be an effective option for individuals with mild to moderate hearing loss, a small randomized effectiveness trial reports. OTC devices yielded 6-week patient-perceived and clinical outcomes comparable to those with audiologist-fitted hearing aids, In fact, at week 2, the self-fitted group had a small but meaningful advantage on two of the four study outcome measures.
“After support and fine-tuning were provided to the self-fitting (remote support) and audiologist-fitted groups, no clinically meaningful differences were evident in any outcome measures at the end of the 6-week trial,” wrote researchers led by Karina C. De Sousa, PhD, a postdoctoral researcher in the department of speech-language pathology and audiology at the University of Pretoria, South Africa.
Their findings appear in JAMA Otolaryngology–Head & Neck Surgery.
Hearing aid uptake is low even in populations with adequate access to audiological resources, the authors noted, with hearing aid use in U.S. adults who could benefit estimated at about 20%. Currently, an estimated 22.9 million older Americans with audiometric hearing loss do not use hearing aids.
Major barriers have been access and affordability, Dr. De Sousa and associates wrote, and until recently, people with hearing loss could obtain hearing aids only after consultation with a credentialed dispenser. “The World Health Organization estimates that over 2.5 billion people will experience some degree of hearing loss by 2050,” Dr. De Sousa said in an interview. “This new category of self-fitting hearing aids opens up newer care pathways for people with mild to moderate hearing loss.”
The study
From April to August 2022 the trial recruited 68 participants (51.6% men) with mild-to-moderate self-reported hearing loss, a mean age of 63.6 years, and no ear disease within the past 90 days. They were randomized to a self-fitted commercially available device (Lexi Lumen), with instructional material on set-up and remote support, or to the same unit fitted by an audiologist. The majority in both arms were new users and were similar in age and baseline hearing scores.
The primary outcome measure was patient-reported hearing aid benefit, measured by the Abbreviated Profile of Hearing Aid Benefit (APHAB) questionnaire. This scale evaluates auditory acuity before and after amplification by such criteria as ease of communication, background noise, reverberation, aversiveness, and global hearing status.
Secondary measures included the International Outcome Inventory for Hearing Aids (IOI-HA) and speech recognition in noise measured using an abbreviated speech-in-noise test and a digits-in-noise test. Measures were taken at baseline, week 2, and week 6 after fitting. After the 2-week field trial, the self-fitting arm had an initial advantage on the self-reported APHAB: difference, Cohen d = −.5 (95% confidence interval [CI], −1.0 to 0). It also fared better on the IOI-HA: effect size, r = 0.3 (95% CI, .0 to –.5), but not on speech recognition in noise.
One member of the self-fitting arm withdrew owing to an unrelated middle-ear infection.
“While these results are promising, it is essential to note that OTC hearing aids are not a one-size-fits-all approach,” Dr. De Sousa said. “If a person has ear disease symptoms or hearing loss that is too severe, they have to consult a trained hearing health care professional.” She added that proper use of a self-fitted OTC hearing aid requires a degree of digital proficiency, as many devices are set up using a smartphone.
This study was supported by the National Institutes of Health and by the hearX Group, which provided the Lexie Lumen devices and software support for data collection. Dr. De Sousa reported nonfinancial support from hearX as well as consulting fees from hearX outside of the submitted work. A coauthor reported grant support from the UK’s National Institute for Health and Care Research Manchester Biomedical Research Centre, and fees from hearX during and outside of the study. Another coauthor disclosed fees, equity, and grant support from hearX during the conduct of the study.
FROM JAMA OTOLARYNGOLOGY–HEAD & NECK SURGERY
Urban green and blue spaces linked to less psychological distress
The findings of the study, which was released ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology, build on a growing understanding of the relationship between types and qualities of urban environments and dementia risk.
Adithya Vegaraju, a student at Washington State University, Spokane, led the study, which looked at data from the Washington State Behavioral Risk Factor Surveillance System to assess prevalence of serious psychological distress among 42,980 Washington state residents aged 65 and over.
The data, collected between 2011 and 2019, used a self-reported questionnaire to determine serious psychological distress, which is defined as a level of mental distress considered debilitating enough to warrant treatment.
Mr. Vegaraju and his coauthor Solmaz Amiri, DDes, also of Washington State University, used ZIP codes, along with U.S. census data, to approximate the urban adults’ proximity to green and blue spaces.
After controlling for potential confounders of age, sex, ethnicity, education, and marital status, the investigators found that people living within half a mile of green or blue spaces had a 17% lower risk of experiencing serious psychological distress, compared with people living farther from these spaces, the investigators said in a news release.
Implications for cognitive decline and dementia?
Psychological distress in adults has been linked in population-based longitudinal studies to later cognitive decline and dementia. One study in older adults found the risk of dementia to be more than 50% higher among adults aged 50-70 with persistent depression. Blue and green spaces have also been investigated in relation to neurodegenerative disease among older adults; a 2022 study looking at data from some 62 million Medicare beneficiaries found those living in areas with more vegetation saw lower risk of hospitalizations for Alzheimer’s disease and related dementias.
“Since we lack effective prevention methods or treatments for mild cognitive impairment and dementia, we need to get creative in how we look at these issues,” Dr. Amiri commented in a press statement about her and Mr. Vegaraju’s findings. “Our hope is that this study showing better mental health among people living close to parks and water will trigger other studies about how these benefits work and whether this proximity can help prevent or delay mild cognitive impairment and dementia.”
The investigators acknowledged that their findings were limited by reliance on a self-reported measure of psychological distress.
A bidirectional connection with depression and dementia
In a comment, Anjum Hajat, PhD, an epidemiologist at University of Washington School of Public Health in Seattle who has also studied the relationship between green space and dementia risk in older adults, noted some further apparent limitations of the new study, for which only an abstract was available at publication.
“It has been shown that people with depression are at higher risk for dementia, but the opposite is also true,” Dr. Hajat commented. “Those with dementia are more likely to develop depression. This bidirectionality makes this study abstract difficult to interpret since the study is based on cross-sectional data: Individuals are not followed over time to see which develops first, dementia or depression.”
Additionally, Dr. Hajat noted, the data used to determine proximity to green and blue spaces did not allow for the calculation of precise distances between subjects’ homes and these spaces.
Mr. Vegaraju and Dr. Amiri’s study had no outside support, and the investigators declared no conflicts of interest. Dr. Hajat declared no conflicts of interest.
The findings of the study, which was released ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology, build on a growing understanding of the relationship between types and qualities of urban environments and dementia risk.
Adithya Vegaraju, a student at Washington State University, Spokane, led the study, which looked at data from the Washington State Behavioral Risk Factor Surveillance System to assess prevalence of serious psychological distress among 42,980 Washington state residents aged 65 and over.
The data, collected between 2011 and 2019, used a self-reported questionnaire to determine serious psychological distress, which is defined as a level of mental distress considered debilitating enough to warrant treatment.
Mr. Vegaraju and his coauthor Solmaz Amiri, DDes, also of Washington State University, used ZIP codes, along with U.S. census data, to approximate the urban adults’ proximity to green and blue spaces.
After controlling for potential confounders of age, sex, ethnicity, education, and marital status, the investigators found that people living within half a mile of green or blue spaces had a 17% lower risk of experiencing serious psychological distress, compared with people living farther from these spaces, the investigators said in a news release.
Implications for cognitive decline and dementia?
Psychological distress in adults has been linked in population-based longitudinal studies to later cognitive decline and dementia. One study in older adults found the risk of dementia to be more than 50% higher among adults aged 50-70 with persistent depression. Blue and green spaces have also been investigated in relation to neurodegenerative disease among older adults; a 2022 study looking at data from some 62 million Medicare beneficiaries found those living in areas with more vegetation saw lower risk of hospitalizations for Alzheimer’s disease and related dementias.
“Since we lack effective prevention methods or treatments for mild cognitive impairment and dementia, we need to get creative in how we look at these issues,” Dr. Amiri commented in a press statement about her and Mr. Vegaraju’s findings. “Our hope is that this study showing better mental health among people living close to parks and water will trigger other studies about how these benefits work and whether this proximity can help prevent or delay mild cognitive impairment and dementia.”
The investigators acknowledged that their findings were limited by reliance on a self-reported measure of psychological distress.
A bidirectional connection with depression and dementia
In a comment, Anjum Hajat, PhD, an epidemiologist at University of Washington School of Public Health in Seattle who has also studied the relationship between green space and dementia risk in older adults, noted some further apparent limitations of the new study, for which only an abstract was available at publication.
“It has been shown that people with depression are at higher risk for dementia, but the opposite is also true,” Dr. Hajat commented. “Those with dementia are more likely to develop depression. This bidirectionality makes this study abstract difficult to interpret since the study is based on cross-sectional data: Individuals are not followed over time to see which develops first, dementia or depression.”
Additionally, Dr. Hajat noted, the data used to determine proximity to green and blue spaces did not allow for the calculation of precise distances between subjects’ homes and these spaces.
Mr. Vegaraju and Dr. Amiri’s study had no outside support, and the investigators declared no conflicts of interest. Dr. Hajat declared no conflicts of interest.
The findings of the study, which was released ahead of its scheduled presentation at the annual meeting of the American Academy of Neurology, build on a growing understanding of the relationship between types and qualities of urban environments and dementia risk.
Adithya Vegaraju, a student at Washington State University, Spokane, led the study, which looked at data from the Washington State Behavioral Risk Factor Surveillance System to assess prevalence of serious psychological distress among 42,980 Washington state residents aged 65 and over.
The data, collected between 2011 and 2019, used a self-reported questionnaire to determine serious psychological distress, which is defined as a level of mental distress considered debilitating enough to warrant treatment.
Mr. Vegaraju and his coauthor Solmaz Amiri, DDes, also of Washington State University, used ZIP codes, along with U.S. census data, to approximate the urban adults’ proximity to green and blue spaces.
After controlling for potential confounders of age, sex, ethnicity, education, and marital status, the investigators found that people living within half a mile of green or blue spaces had a 17% lower risk of experiencing serious psychological distress, compared with people living farther from these spaces, the investigators said in a news release.
Implications for cognitive decline and dementia?
Psychological distress in adults has been linked in population-based longitudinal studies to later cognitive decline and dementia. One study in older adults found the risk of dementia to be more than 50% higher among adults aged 50-70 with persistent depression. Blue and green spaces have also been investigated in relation to neurodegenerative disease among older adults; a 2022 study looking at data from some 62 million Medicare beneficiaries found those living in areas with more vegetation saw lower risk of hospitalizations for Alzheimer’s disease and related dementias.
“Since we lack effective prevention methods or treatments for mild cognitive impairment and dementia, we need to get creative in how we look at these issues,” Dr. Amiri commented in a press statement about her and Mr. Vegaraju’s findings. “Our hope is that this study showing better mental health among people living close to parks and water will trigger other studies about how these benefits work and whether this proximity can help prevent or delay mild cognitive impairment and dementia.”
The investigators acknowledged that their findings were limited by reliance on a self-reported measure of psychological distress.
A bidirectional connection with depression and dementia
In a comment, Anjum Hajat, PhD, an epidemiologist at University of Washington School of Public Health in Seattle who has also studied the relationship between green space and dementia risk in older adults, noted some further apparent limitations of the new study, for which only an abstract was available at publication.
“It has been shown that people with depression are at higher risk for dementia, but the opposite is also true,” Dr. Hajat commented. “Those with dementia are more likely to develop depression. This bidirectionality makes this study abstract difficult to interpret since the study is based on cross-sectional data: Individuals are not followed over time to see which develops first, dementia or depression.”
Additionally, Dr. Hajat noted, the data used to determine proximity to green and blue spaces did not allow for the calculation of precise distances between subjects’ homes and these spaces.
Mr. Vegaraju and Dr. Amiri’s study had no outside support, and the investigators declared no conflicts of interest. Dr. Hajat declared no conflicts of interest.
FROM AAN 2023