Hans-Christoph Diener, MD, PhD

This transcript has been edited for clarity.

Dear colleagues, I’m Christoph Diener from the medical faculty of University Duisburg-Essen in Germany. Today I would like to tell you about five interesting studies that were published in January 2024.
 

Long COVID

I would like to start with long COVID. There is an ongoing discussion about whether this condition — which means symptoms like dizziness, vertigo, fatigue, headache, and cognitive impairment that persist for more than 6 months — is either a consequence of the infection, functional symptoms, psychosomatic disease, or a depression.

There is an important paper that came out in Science. The group investigated 39 controls and 113 patients who had COVID-19. At 6 months, 40 of them had long COVID. The researchers repeatedly measured more than 6500 proteins in serum. The patients with long COVID had a significant increase in complement activation, which persisted even beyond 6 months. These patients also showed increased tissue lesion markers in the blood and activation of the endothelium.

Also, they had increased platelet activation and autoantibodies with increased anti-cytomegalovirus and anti-Epstein-Barr virus immunoglobulins. These are very strong indicators that COVID-19 leads to long-term changes in our immune system, and different activations of complement factors could explain the variety of symptoms that these patients display. Whether this has consequences for treatment is unclear at the moment.
 

Parkinson’s Classification

Let me come to another issue, which is the future treatment of Parkinson’s disease, covered in a paper in The Lancet Neurology. I think you are all aware that once patients display symptoms like rigidity, bradykinesia, or tremor, it’s most probably too late for neuroprotective therapy because 70% of the dopaminergic neurons are already dead.

The authors propose a new biological diagnosis of the disease in the preclinical state. This early preclinical diagnosis has three components. One is to show the presence of synuclein either in skin biopsy or in serum. The second is proof of neurodegeneration either by MRI or by PET imaging. The third involves genetic markers.

On top of this, we know that we have preclinical manifestations of Parkinson’s disease, like REM sleep disorders, autonomic disturbances, and cognitive impairment. With this new classification, we should be able to identify the preclinical phase of Parkinson’s disease and include these patients in future trials for neuroprotection.
 

Niemann-Pick Disease

My third study, in The New England Journal of Medicine, deals with Niemann-Pick disease type C (Trial of N-Acetyl-l-Leucine in Niemann–Pick Disease Type C. This is a rare autosomal recessive disorder that involves impaired lysosomal storage. This disease, which manifests usually in childhood, goes along with systemic, psychiatric, and neurologic abnormalities, and in particular, ataxia. Until now, there has been only one therapy, with miglustat. which has many side effects.

The group of authors found a new therapeutic approach with N-acetyl-L-leucine, which primarily increases mitochondrial energy production. This was a small, placebo-controlled, crossover trial with 2 x 12 weeks of treatment. This new compound showed efficacy and was very well tolerated. This shows that we definitely need long-term studies with this new, well-tolerated drug in this rare disease.
 

Anticoagulation in Subclinical AF

My fourth study comes from the stroke-prevention field, published in The New England Journal of Medicine. I think you are aware of subclinical atrail fibrillation. These are high-frequency episodes in ECG, usually identified by pacemakers or ECG monitoring systems. The international ARTESIA study included more than 4000 patients randomized either to apixaban 5 mg twice daily or aspirin 81 mg.

After 3.5 years, the investigators showed a small but significant decrease in the rate of stroke, with a relative risk reduction of 37%, but also, unfortunately, a significantly increased risk for major bleeding with apixaban. This means that we need a careful discussion with the patient, the family, and the GP to decide whether these patients should be anticoagulated or not.
 

Migraine and Depression

My final study, published in the European Journal of Neurology, deals with the comorbidity of depression and migraine. This study in the Netherlands included 108 patients treated with erenumab and 90 with fremanezumab; 68 were controls.

They used two depression scales. They showed that treatment with the monoclonal antibodies improved at least one of the two depression scales. I think this is an important study because it indicates that you can improve comorbid depression in people with severe migraine, even if this study did not show a correlation between the reduction in monthly migraine days and the improvement of depression.

What we learned for clinical practice is that we have to identify depression in people with migraine and we have to deal with it. Whether it’s with the treatment of monoclonal antibodies or antidepressant therapy doesn’t really matter.

Dear colleagues, we had interesting studies this month. I think the most spectacular one was published in Science on long COVID. Thank you very much for listening and watching. I’m Christoph Diener from University Duisburg-Essen.
 

Dr. Diener is Professor, Department of Neurology, Stroke Center-Headache Center, University Duisburg-Essen, Essen, Germany. He disclosed ties with Abbott; Addex Pharma; Alder; Allergan; Almirall; Amgen; Autonomic Technology; AstraZeneca; Bayer Vital; Berlin Chemie; Bristol-Myers Squibb; Boehringer Ingelheim; Chordate; CoAxia; Corimmun; Covidien; Coherex; CoLucid; Daiichi-Sankyo; D-Pharml Electrocore; Fresenius; GlaxoSmithKline; Grunenthal; Janssen-Cilag; Labrys Biologics Lilly; La Roche; 3M Medica; MSD; Medtronic; Menarini; MindFrame; Minster; Neuroscore; Neurobiological Technologies; Novartis; Novo-Nordisk; Johnson & Johnson; Knoll; Paion; Parke-Davis; Pierre Fabre; Pfizer Inc; Schaper and Brummer; sanofi-aventis; Schering-Plough; Servier; Solvay; Syngis; St. Jude; Talecris; Thrombogenics; WebMD Global; Weber and Weber; Wyeth; and Yamanouchi.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I’m Christoph Diener from the medical faculty of University Duisburg-Essen in Germany. Today I would like to tell you about five interesting studies that were published in January 2024.
 

Long COVID

I would like to start with long COVID. There is an ongoing discussion about whether this condition — which means symptoms like dizziness, vertigo, fatigue, headache, and cognitive impairment that persist for more than 6 months — is either a consequence of the infection, functional symptoms, psychosomatic disease, or a depression.

There is an important paper that came out in Science. The group investigated 39 controls and 113 patients who had COVID-19. At 6 months, 40 of them had long COVID. The researchers repeatedly measured more than 6500 proteins in serum. The patients with long COVID had a significant increase in complement activation, which persisted even beyond 6 months. These patients also showed increased tissue lesion markers in the blood and activation of the endothelium.

Also, they had increased platelet activation and autoantibodies with increased anti-cytomegalovirus and anti-Epstein-Barr virus immunoglobulins. These are very strong indicators that COVID-19 leads to long-term changes in our immune system, and different activations of complement factors could explain the variety of symptoms that these patients display. Whether this has consequences for treatment is unclear at the moment.
 

Parkinson’s Classification

Let me come to another issue, which is the future treatment of Parkinson’s disease, covered in a paper in The Lancet Neurology. I think you are all aware that once patients display symptoms like rigidity, bradykinesia, or tremor, it’s most probably too late for neuroprotective therapy because 70% of the dopaminergic neurons are already dead.

The authors propose a new biological diagnosis of the disease in the preclinical state. This early preclinical diagnosis has three components. One is to show the presence of synuclein either in skin biopsy or in serum. The second is proof of neurodegeneration either by MRI or by PET imaging. The third involves genetic markers.

On top of this, we know that we have preclinical manifestations of Parkinson’s disease, like REM sleep disorders, autonomic disturbances, and cognitive impairment. With this new classification, we should be able to identify the preclinical phase of Parkinson’s disease and include these patients in future trials for neuroprotection.
 

Niemann-Pick Disease

My third study, in The New England Journal of Medicine, deals with Niemann-Pick disease type C (Trial of N-Acetyl-l-Leucine in Niemann–Pick Disease Type C. This is a rare autosomal recessive disorder that involves impaired lysosomal storage. This disease, which manifests usually in childhood, goes along with systemic, psychiatric, and neurologic abnormalities, and in particular, ataxia. Until now, there has been only one therapy, with miglustat. which has many side effects.

The group of authors found a new therapeutic approach with N-acetyl-L-leucine, which primarily increases mitochondrial energy production. This was a small, placebo-controlled, crossover trial with 2 x 12 weeks of treatment. This new compound showed efficacy and was very well tolerated. This shows that we definitely need long-term studies with this new, well-tolerated drug in this rare disease.
 

Anticoagulation in Subclinical AF

My fourth study comes from the stroke-prevention field, published in The New England Journal of Medicine. I think you are aware of subclinical atrail fibrillation. These are high-frequency episodes in ECG, usually identified by pacemakers or ECG monitoring systems. The international ARTESIA study included more than 4000 patients randomized either to apixaban 5 mg twice daily or aspirin 81 mg.

After 3.5 years, the investigators showed a small but significant decrease in the rate of stroke, with a relative risk reduction of 37%, but also, unfortunately, a significantly increased risk for major bleeding with apixaban. This means that we need a careful discussion with the patient, the family, and the GP to decide whether these patients should be anticoagulated or not.
 

Migraine and Depression

My final study, published in the European Journal of Neurology, deals with the comorbidity of depression and migraine. This study in the Netherlands included 108 patients treated with erenumab and 90 with fremanezumab; 68 were controls.

They used two depression scales. They showed that treatment with the monoclonal antibodies improved at least one of the two depression scales. I think this is an important study because it indicates that you can improve comorbid depression in people with severe migraine, even if this study did not show a correlation between the reduction in monthly migraine days and the improvement of depression.

What we learned for clinical practice is that we have to identify depression in people with migraine and we have to deal with it. Whether it’s with the treatment of monoclonal antibodies or antidepressant therapy doesn’t really matter.

Dear colleagues, we had interesting studies this month. I think the most spectacular one was published in Science on long COVID. Thank you very much for listening and watching. I’m Christoph Diener from University Duisburg-Essen.
 

Dr. Diener is Professor, Department of Neurology, Stroke Center-Headache Center, University Duisburg-Essen, Essen, Germany. He disclosed ties with Abbott; Addex Pharma; Alder; Allergan; Almirall; Amgen; Autonomic Technology; AstraZeneca; Bayer Vital; Berlin Chemie; Bristol-Myers Squibb; Boehringer Ingelheim; Chordate; CoAxia; Corimmun; Covidien; Coherex; CoLucid; Daiichi-Sankyo; D-Pharml Electrocore; Fresenius; GlaxoSmithKline; Grunenthal; Janssen-Cilag; Labrys Biologics Lilly; La Roche; 3M Medica; MSD; Medtronic; Menarini; MindFrame; Minster; Neuroscore; Neurobiological Technologies; Novartis; Novo-Nordisk; Johnson & Johnson; Knoll; Paion; Parke-Davis; Pierre Fabre; Pfizer Inc; Schaper and Brummer; sanofi-aventis; Schering-Plough; Servier; Solvay; Syngis; St. Jude; Talecris; Thrombogenics; WebMD Global; Weber and Weber; Wyeth; and Yamanouchi.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I’m Christoph Diener from the medical faculty of University Duisburg-Essen in Germany. Today I would like to tell you about five interesting studies that were published in January 2024.
 

Long COVID

I would like to start with long COVID. There is an ongoing discussion about whether this condition — which means symptoms like dizziness, vertigo, fatigue, headache, and cognitive impairment that persist for more than 6 months — is either a consequence of the infection, functional symptoms, psychosomatic disease, or a depression.

There is an important paper that came out in Science. The group investigated 39 controls and 113 patients who had COVID-19. At 6 months, 40 of them had long COVID. The researchers repeatedly measured more than 6500 proteins in serum. The patients with long COVID had a significant increase in complement activation, which persisted even beyond 6 months. These patients also showed increased tissue lesion markers in the blood and activation of the endothelium.

Also, they had increased platelet activation and autoantibodies with increased anti-cytomegalovirus and anti-Epstein-Barr virus immunoglobulins. These are very strong indicators that COVID-19 leads to long-term changes in our immune system, and different activations of complement factors could explain the variety of symptoms that these patients display. Whether this has consequences for treatment is unclear at the moment.
 

Parkinson’s Classification

Let me come to another issue, which is the future treatment of Parkinson’s disease, covered in a paper in The Lancet Neurology. I think you are all aware that once patients display symptoms like rigidity, bradykinesia, or tremor, it’s most probably too late for neuroprotective therapy because 70% of the dopaminergic neurons are already dead.

The authors propose a new biological diagnosis of the disease in the preclinical state. This early preclinical diagnosis has three components. One is to show the presence of synuclein either in skin biopsy or in serum. The second is proof of neurodegeneration either by MRI or by PET imaging. The third involves genetic markers.

On top of this, we know that we have preclinical manifestations of Parkinson’s disease, like REM sleep disorders, autonomic disturbances, and cognitive impairment. With this new classification, we should be able to identify the preclinical phase of Parkinson’s disease and include these patients in future trials for neuroprotection.
 

Niemann-Pick Disease

My third study, in The New England Journal of Medicine, deals with Niemann-Pick disease type C (Trial of N-Acetyl-l-Leucine in Niemann–Pick Disease Type C. This is a rare autosomal recessive disorder that involves impaired lysosomal storage. This disease, which manifests usually in childhood, goes along with systemic, psychiatric, and neurologic abnormalities, and in particular, ataxia. Until now, there has been only one therapy, with miglustat. which has many side effects.

The group of authors found a new therapeutic approach with N-acetyl-L-leucine, which primarily increases mitochondrial energy production. This was a small, placebo-controlled, crossover trial with 2 x 12 weeks of treatment. This new compound showed efficacy and was very well tolerated. This shows that we definitely need long-term studies with this new, well-tolerated drug in this rare disease.
 

Anticoagulation in Subclinical AF

My fourth study comes from the stroke-prevention field, published in The New England Journal of Medicine. I think you are aware of subclinical atrail fibrillation. These are high-frequency episodes in ECG, usually identified by pacemakers or ECG monitoring systems. The international ARTESIA study included more than 4000 patients randomized either to apixaban 5 mg twice daily or aspirin 81 mg.

After 3.5 years, the investigators showed a small but significant decrease in the rate of stroke, with a relative risk reduction of 37%, but also, unfortunately, a significantly increased risk for major bleeding with apixaban. This means that we need a careful discussion with the patient, the family, and the GP to decide whether these patients should be anticoagulated or not.
 

Migraine and Depression

My final study, published in the European Journal of Neurology, deals with the comorbidity of depression and migraine. This study in the Netherlands included 108 patients treated with erenumab and 90 with fremanezumab; 68 were controls.

They used two depression scales. They showed that treatment with the monoclonal antibodies improved at least one of the two depression scales. I think this is an important study because it indicates that you can improve comorbid depression in people with severe migraine, even if this study did not show a correlation between the reduction in monthly migraine days and the improvement of depression.

What we learned for clinical practice is that we have to identify depression in people with migraine and we have to deal with it. Whether it’s with the treatment of monoclonal antibodies or antidepressant therapy doesn’t really matter.

Dear colleagues, we had interesting studies this month. I think the most spectacular one was published in Science on long COVID. Thank you very much for listening and watching. I’m Christoph Diener from University Duisburg-Essen.
 

Dr. Diener is Professor, Department of Neurology, Stroke Center-Headache Center, University Duisburg-Essen, Essen, Germany. He disclosed ties with Abbott; Addex Pharma; Alder; Allergan; Almirall; Amgen; Autonomic Technology; AstraZeneca; Bayer Vital; Berlin Chemie; Bristol-Myers Squibb; Boehringer Ingelheim; Chordate; CoAxia; Corimmun; Covidien; Coherex; CoLucid; Daiichi-Sankyo; D-Pharml Electrocore; Fresenius; GlaxoSmithKline; Grunenthal; Janssen-Cilag; Labrys Biologics Lilly; La Roche; 3M Medica; MSD; Medtronic; Menarini; MindFrame; Minster; Neuroscore; Neurobiological Technologies; Novartis; Novo-Nordisk; Johnson & Johnson; Knoll; Paion; Parke-Davis; Pierre Fabre; Pfizer Inc; Schaper and Brummer; sanofi-aventis; Schering-Plough; Servier; Solvay; Syngis; St. Jude; Talecris; Thrombogenics; WebMD Global; Weber and Weber; Wyeth; and Yamanouchi.

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I’m Hans-Christoph Diener from the Faculty of Medicine at the University of Duisburg-Essen in Germany. I would like to give you an update on what was reported during the International Headache Congress in Seoul in September.
 

CGRP receptor agonists

Let me start with the treatment of acute migraine attacks. Until recently, we had analgesics, nonsteroidal anti-inflammatory drugs like ibuprofen, ergot alkaloids, and triptans. There are new developments, which are small molecules that are antagonists at the calcitonin gene-related peptide (CGRP) receptor. At the moment, we have three of them: rimegepant 75 mg, ubrogepant 50 mg or 100 mg, and zavegepant (a nasal spray) 10 mg.

These are all effective and superior to placebo. The 2-hour pain-free rate is somewhere between 25% and 30%. They have very few side effects; these include a little bit of nausea, somnolence, nasopharyngitis, and for zavegepant, the nasal spray, taste disturbance. In indirect comparisons, the so-called gepants are about as effective as ibuprofen and aspirin, and they seem to be less effective than sumatriptan 100 mg.

Unfortunately, until now, we have no direct comparison with triptans and we have no data demonstrating whether they are effective in people where triptans do not work. The major shortcoming is the cost in the United States. The cost per tablet or nasal spray is somewhere between $80 and $200. This means we definitely need more studies for these gepants.
 

Migraine prophylaxis

Let me move to the prophylaxis of migraine with drugs. Previously and still, we have all medications like beta-blockers, flunarizine, topiramate, valproic acid, amitriptyline, and candesartan, and for chronic migraine, onabotulinumtoxinA. We have now 5 years’ experience with the monoclonal antibodies against CGRP or the CGRP receptor like eptinezumab, erenumab, fremanezumab, and galcanezumab.

These are all equally effective. They reduce migraine-days between 3 and 7 per month. They are effective both in episodic and chronic migraine, and most importantly, they are effective in people with medication overuse headaches. The 50% responder rates are somewhere between 40% and 60%, and there are no significant differences between the four monoclonal antibodies.

The major advantage is a very good tolerability profile; very few patients terminate treatment because of adverse events. There has been, with one exception, no direct comparison of the monoclonal antibodies with traditional migraine preventive drugs or onabotulinumtoxinA. The only exception is a trial that compared topiramate and erenumab, showing that erenumab was definitely more effective and better tolerated.

At the moment, the recommendation is to use these monoclonal antibodies for 12 months in episodic migraine and 24 months in chronic migraine and then pause. It usually turns out that between 50% and 70% of these patients need to continue the treatment. If they are not working, there is a possibility to switch between the monoclonal antibodies, and the success rate after this is somewhere between 15% and 30%.

Gepants were also developed for the prevention of migraine. Here, we have rimegepant 75 mg every other day or atogepant 60 mg daily. They are effective, but in indirect comparisons, they are less effective than the monoclonal antibodies. At present, we have no comparative trials with monoclonal antibodies or the traditional migraine preventive drugs.

Potential patients are those who have needle phobia or patients who do not respond to monoclonal antibodies. Again, the biggest shortcoming is cost in the United States. The cost per year for migraine prevention or prophylaxis is between $12,000 and $20,000.

Finally, we also had very exciting news. There is a new therapeutic approach via PACAP. PACAP is pituitary adenylate cyclase-activating polypeptide, which has similar biological actions as CGRP but with additional actions. It could very well be that people who do not respond to a monoclonal antibody would respond to a monoclonal antibody against PACAP.

At the congress, the first randomized, placebo-controlled trial with a monoclonal antibody against PACAP was presented. This monoclonal antibody was effective in a population of people in whom prior preventive therapy had failed. A phase 3 study is planned, and most probably the PACAP monoclonal could work in people who do not respond to monoclonal antibodies against CGRP.

Dear colleagues, we have now many choices for the acute treatment of migraine and migraine prophylaxis. We have new kids on the block, and we have to learn more about how to use these drugs, their benefits, and their shortcomings.

He has disclosed the following relevant financial relationships:Received honoraria for participation in clinical trials, contribution to advisory boards or oral presentations from: Abbott; Addex Pharma; Alder; Allergan; Almirall; Amgen; Autonomic Technology; AstraZeneca; Bayer Vital; Berlin Chemie; Bristol-Myers Squibb; Boehringer Ingelheim; Chordate; CoAxia; Corimmun; Covidien; Coherex; CoLucid; Daiichi-Sankyo; D-Pharm; Electrocore; Fresenius; GlaxoSmithKline; Grunenthal; Janssen-Cilag; Labrys Biologics Lilly; La Roche; 3M Medica; MSD; Medtronic; Menarini; MindFrame; Minster; Neuroscore; Neurobiological Technologies; Novartis; Novo Nordisk; Johnson & Johnson; Knoll; Paion; Parke-Davis; Pierre Fabre; Pfizer; Schaper and Brummer; Sanofi-Aventis; Schering-Plough; Servier; Solvay; Syngis; St. Jude; Talecris; Thrombogenics; WebMD Global; Weber and Weber; Wyeth; and Yamanouchi.

Dr. Diener is professor, department of neurology, Stroke Center-Headache Center, University Duisburg-Essen (Germany).

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I’m Hans-Christoph Diener from the Faculty of Medicine at the University of Duisburg-Essen in Germany. I would like to give you an update on what was reported during the International Headache Congress in Seoul in September.
 

CGRP receptor agonists

Let me start with the treatment of acute migraine attacks. Until recently, we had analgesics, nonsteroidal anti-inflammatory drugs like ibuprofen, ergot alkaloids, and triptans. There are new developments, which are small molecules that are antagonists at the calcitonin gene-related peptide (CGRP) receptor. At the moment, we have three of them: rimegepant 75 mg, ubrogepant 50 mg or 100 mg, and zavegepant (a nasal spray) 10 mg.

These are all effective and superior to placebo. The 2-hour pain-free rate is somewhere between 25% and 30%. They have very few side effects; these include a little bit of nausea, somnolence, nasopharyngitis, and for zavegepant, the nasal spray, taste disturbance. In indirect comparisons, the so-called gepants are about as effective as ibuprofen and aspirin, and they seem to be less effective than sumatriptan 100 mg.

Unfortunately, until now, we have no direct comparison with triptans and we have no data demonstrating whether they are effective in people where triptans do not work. The major shortcoming is the cost in the United States. The cost per tablet or nasal spray is somewhere between $80 and $200. This means we definitely need more studies for these gepants.
 

Migraine prophylaxis

Let me move to the prophylaxis of migraine with drugs. Previously and still, we have all medications like beta-blockers, flunarizine, topiramate, valproic acid, amitriptyline, and candesartan, and for chronic migraine, onabotulinumtoxinA. We have now 5 years’ experience with the monoclonal antibodies against CGRP or the CGRP receptor like eptinezumab, erenumab, fremanezumab, and galcanezumab.

These are all equally effective. They reduce migraine-days between 3 and 7 per month. They are effective both in episodic and chronic migraine, and most importantly, they are effective in people with medication overuse headaches. The 50% responder rates are somewhere between 40% and 60%, and there are no significant differences between the four monoclonal antibodies.

The major advantage is a very good tolerability profile; very few patients terminate treatment because of adverse events. There has been, with one exception, no direct comparison of the monoclonal antibodies with traditional migraine preventive drugs or onabotulinumtoxinA. The only exception is a trial that compared topiramate and erenumab, showing that erenumab was definitely more effective and better tolerated.

At the moment, the recommendation is to use these monoclonal antibodies for 12 months in episodic migraine and 24 months in chronic migraine and then pause. It usually turns out that between 50% and 70% of these patients need to continue the treatment. If they are not working, there is a possibility to switch between the monoclonal antibodies, and the success rate after this is somewhere between 15% and 30%.

Gepants were also developed for the prevention of migraine. Here, we have rimegepant 75 mg every other day or atogepant 60 mg daily. They are effective, but in indirect comparisons, they are less effective than the monoclonal antibodies. At present, we have no comparative trials with monoclonal antibodies or the traditional migraine preventive drugs.

Potential patients are those who have needle phobia or patients who do not respond to monoclonal antibodies. Again, the biggest shortcoming is cost in the United States. The cost per year for migraine prevention or prophylaxis is between $12,000 and $20,000.

Finally, we also had very exciting news. There is a new therapeutic approach via PACAP. PACAP is pituitary adenylate cyclase-activating polypeptide, which has similar biological actions as CGRP but with additional actions. It could very well be that people who do not respond to a monoclonal antibody would respond to a monoclonal antibody against PACAP.

At the congress, the first randomized, placebo-controlled trial with a monoclonal antibody against PACAP was presented. This monoclonal antibody was effective in a population of people in whom prior preventive therapy had failed. A phase 3 study is planned, and most probably the PACAP monoclonal could work in people who do not respond to monoclonal antibodies against CGRP.

Dear colleagues, we have now many choices for the acute treatment of migraine and migraine prophylaxis. We have new kids on the block, and we have to learn more about how to use these drugs, their benefits, and their shortcomings.

He has disclosed the following relevant financial relationships:Received honoraria for participation in clinical trials, contribution to advisory boards or oral presentations from: Abbott; Addex Pharma; Alder; Allergan; Almirall; Amgen; Autonomic Technology; AstraZeneca; Bayer Vital; Berlin Chemie; Bristol-Myers Squibb; Boehringer Ingelheim; Chordate; CoAxia; Corimmun; Covidien; Coherex; CoLucid; Daiichi-Sankyo; D-Pharm; Electrocore; Fresenius; GlaxoSmithKline; Grunenthal; Janssen-Cilag; Labrys Biologics Lilly; La Roche; 3M Medica; MSD; Medtronic; Menarini; MindFrame; Minster; Neuroscore; Neurobiological Technologies; Novartis; Novo Nordisk; Johnson & Johnson; Knoll; Paion; Parke-Davis; Pierre Fabre; Pfizer; Schaper and Brummer; Sanofi-Aventis; Schering-Plough; Servier; Solvay; Syngis; St. Jude; Talecris; Thrombogenics; WebMD Global; Weber and Weber; Wyeth; and Yamanouchi.

Dr. Diener is professor, department of neurology, Stroke Center-Headache Center, University Duisburg-Essen (Germany).

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I’m Hans-Christoph Diener from the Faculty of Medicine at the University of Duisburg-Essen in Germany. I would like to give you an update on what was reported during the International Headache Congress in Seoul in September.
 

CGRP receptor agonists

Let me start with the treatment of acute migraine attacks. Until recently, we had analgesics, nonsteroidal anti-inflammatory drugs like ibuprofen, ergot alkaloids, and triptans. There are new developments, which are small molecules that are antagonists at the calcitonin gene-related peptide (CGRP) receptor. At the moment, we have three of them: rimegepant 75 mg, ubrogepant 50 mg or 100 mg, and zavegepant (a nasal spray) 10 mg.

These are all effective and superior to placebo. The 2-hour pain-free rate is somewhere between 25% and 30%. They have very few side effects; these include a little bit of nausea, somnolence, nasopharyngitis, and for zavegepant, the nasal spray, taste disturbance. In indirect comparisons, the so-called gepants are about as effective as ibuprofen and aspirin, and they seem to be less effective than sumatriptan 100 mg.

Unfortunately, until now, we have no direct comparison with triptans and we have no data demonstrating whether they are effective in people where triptans do not work. The major shortcoming is the cost in the United States. The cost per tablet or nasal spray is somewhere between $80 and $200. This means we definitely need more studies for these gepants.
 

Migraine prophylaxis

Let me move to the prophylaxis of migraine with drugs. Previously and still, we have all medications like beta-blockers, flunarizine, topiramate, valproic acid, amitriptyline, and candesartan, and for chronic migraine, onabotulinumtoxinA. We have now 5 years’ experience with the monoclonal antibodies against CGRP or the CGRP receptor like eptinezumab, erenumab, fremanezumab, and galcanezumab.

These are all equally effective. They reduce migraine-days between 3 and 7 per month. They are effective both in episodic and chronic migraine, and most importantly, they are effective in people with medication overuse headaches. The 50% responder rates are somewhere between 40% and 60%, and there are no significant differences between the four monoclonal antibodies.

The major advantage is a very good tolerability profile; very few patients terminate treatment because of adverse events. There has been, with one exception, no direct comparison of the monoclonal antibodies with traditional migraine preventive drugs or onabotulinumtoxinA. The only exception is a trial that compared topiramate and erenumab, showing that erenumab was definitely more effective and better tolerated.

At the moment, the recommendation is to use these monoclonal antibodies for 12 months in episodic migraine and 24 months in chronic migraine and then pause. It usually turns out that between 50% and 70% of these patients need to continue the treatment. If they are not working, there is a possibility to switch between the monoclonal antibodies, and the success rate after this is somewhere between 15% and 30%.

Gepants were also developed for the prevention of migraine. Here, we have rimegepant 75 mg every other day or atogepant 60 mg daily. They are effective, but in indirect comparisons, they are less effective than the monoclonal antibodies. At present, we have no comparative trials with monoclonal antibodies or the traditional migraine preventive drugs.

Potential patients are those who have needle phobia or patients who do not respond to monoclonal antibodies. Again, the biggest shortcoming is cost in the United States. The cost per year for migraine prevention or prophylaxis is between $12,000 and $20,000.

Finally, we also had very exciting news. There is a new therapeutic approach via PACAP. PACAP is pituitary adenylate cyclase-activating polypeptide, which has similar biological actions as CGRP but with additional actions. It could very well be that people who do not respond to a monoclonal antibody would respond to a monoclonal antibody against PACAP.

At the congress, the first randomized, placebo-controlled trial with a monoclonal antibody against PACAP was presented. This monoclonal antibody was effective in a population of people in whom prior preventive therapy had failed. A phase 3 study is planned, and most probably the PACAP monoclonal could work in people who do not respond to monoclonal antibodies against CGRP.

Dear colleagues, we have now many choices for the acute treatment of migraine and migraine prophylaxis. We have new kids on the block, and we have to learn more about how to use these drugs, their benefits, and their shortcomings.

He has disclosed the following relevant financial relationships:Received honoraria for participation in clinical trials, contribution to advisory boards or oral presentations from: Abbott; Addex Pharma; Alder; Allergan; Almirall; Amgen; Autonomic Technology; AstraZeneca; Bayer Vital; Berlin Chemie; Bristol-Myers Squibb; Boehringer Ingelheim; Chordate; CoAxia; Corimmun; Covidien; Coherex; CoLucid; Daiichi-Sankyo; D-Pharm; Electrocore; Fresenius; GlaxoSmithKline; Grunenthal; Janssen-Cilag; Labrys Biologics Lilly; La Roche; 3M Medica; MSD; Medtronic; Menarini; MindFrame; Minster; Neuroscore; Neurobiological Technologies; Novartis; Novo Nordisk; Johnson & Johnson; Knoll; Paion; Parke-Davis; Pierre Fabre; Pfizer; Schaper and Brummer; Sanofi-Aventis; Schering-Plough; Servier; Solvay; Syngis; St. Jude; Talecris; Thrombogenics; WebMD Global; Weber and Weber; Wyeth; and Yamanouchi.

Dr. Diener is professor, department of neurology, Stroke Center-Headache Center, University Duisburg-Essen (Germany).

A version of this article appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I am Christoph Diener from the medical faculty of the University of Duisburg-Essen in Germany. Today, I would like to discuss what happened in neurology in the past month.
 

Treatment of tension-type headache

I would like to start with headache. You are all aware that we have several new studies regarding the prevention of migraine, but very few studies involving nondrug treatments for tension-type headache.

A working group in Göttingen, Germany, conducted a study in people with frequent episodic and chronic tension-type headache. The first of the four randomized groups received traditional Chinese acupuncture for 3 months. The second group received physical therapy and exercise for 1 hour per week for 12 weeks. The third group received a combination of acupuncture and exercise. The last was a control group that received only standard care.

The outcome parameters of tension-type headache were evaluated after 6 months and again after 12 months. Previously, these same researchers published that the intensity but not the frequency of tension-type headache was reduced by active therapy.

In Cephalalgia, they published the outcome for the endpoints of depression, anxiety, and quality of life. Acupuncture, exercise, and the combination of the two improved depression, anxiety, and quality of life. This shows that nonmedical treatment is effective in people with frequent episodic and chronic tension-type headache.
 

Headache after COVID-19

The next study was published in Headache and discusses headache after COVID-19. In this review of published studies, more than 50% of people with COVID-19 develop headache. It is more frequent in young patients and people with preexisting primary headaches, such as migraine and tension-type headache. Prognosis is usually good, but some patients develop new, daily persistent headache, which is a major problem because treatment is unclear. We desperately need studies investigating how to treat this new, daily persistent headache after COVID-19.

SSRIs during COVID-19 infection

The next study also focuses on COVID-19. We have conflicting results from several studies suggesting that selective serotonin reuptake inhibitors might be effective in people with mild COVID-19 infection. This hypothesis was tested in a study in Brazil and was published in JAMA, The study included 1,288 outpatients with mild COVID-19 who either received 50 mg of fluvoxamine twice daily for 10 days or placebo. There was no benefit of the treatment for any outcome.

Preventing dementia with antihypertensive treatment

The next study was published in the European Heart Journal and addresses the question of whether effective antihypertensive treatment in elderly persons can prevent dementia. This is a meta-analysis of five placebo-controlled trials with more than 28,000 patients. The meta-analysis clearly shows that treating hypertension in elderly patients does prevent dementia. The benefit is higher if the blood pressure is lowered by a larger amount which also stays true for elderly patients. There is no negative impact of lowering blood pressure in this population.

Antiplatelet therapy

The next study was published in Stroke and reexamines whether resumption of antiplatelet therapy should be early or late in people who had an intracerebral hemorrhage while on antiplatelet therapy. In the Taiwanese Health Registry, this was studied in 1,584 patients. The researchers divided participants into groups based on whether antiplatelet therapy was resumed within 30 days or after 30 days. In 1 year, the rate of recurrent intracerebral hemorrhage was 3.2%. There was no difference whether antiplatelet therapy was resumed early or late.

Regular exercise in Parkinson’s disease

The final study is a review of nonmedical therapy. This meta-analysis of 19 randomized trials looked at the benefit of regular exercise in patients with Parkinson’s disease and depression. The analysis clearly showed that rigorous and moderate exercise improved depression in patients with Parkinson’s disease. This is very important because exercise improves not only the symptoms of Parkinson’s disease but also comorbid depression while presenting no serious adverse events or side effects.

Dr. Diener is a professor in the department of neurology at Stroke Center–Headache Center, University Duisburg-Essen, Germany. He disclosed ties with Abbott, Addex Pharma, Alder, Allergan, Almirall, Amgen, Autonomic Technology, AstraZeneca, Bayer Vital, Berlin Chemie, Bristol-Myers Squibb, Boehringer Ingelheim, Chordate, CoAxia, Corimmun, Covidien, Coherex, CoLucid, Daiichi Sankyo, D-Pharm, Electrocore, Fresenius, GlaxoSmithKline, Grunenthal, Janssen-Cilag, Labrys Biologics Lilly, La Roche, Lundbeck, 3M Medica, MSD, Medtronic, Menarini, MindFrame, Minster, Neuroscore, Neurobiological Technologies, Novartis, Novo Nordisk, Johnson & Johnson, Knoll, Paion, Parke-Davis, Pierre Fabre, Pfizer Inc, Schaper and Brummer, Sanofi-Aventis, Schering-Plough, Servier, Solvay, St. Jude, Talecris, Thrombogenics, WebMD Global, Weber and Weber, Wyeth, and Yamanouchi. Dr. Diener has served as editor of Aktuelle Neurologie, Arzneimitteltherapie, Kopfschmerz News, Stroke News, and the Treatment Guidelines of the German Neurological Society; as co-editor of Cephalalgia; and on the editorial board of The Lancet Neurology, Stroke, European Neurology, and Cerebrovascular Disorders. The department of neurology in Essen is supported by the German Research Council, the German Ministry of Education and Research, European Union, National Institutes of Health, Bertelsmann Foundation, and Heinz Nixdorf Foundation. Dr. Diener has no ownership interest and does not own stocks in any pharmaceutical company. A version of this article originally appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I am Christoph Diener from the medical faculty of the University of Duisburg-Essen in Germany. Today, I would like to discuss what happened in neurology in the past month.
 

Treatment of tension-type headache

I would like to start with headache. You are all aware that we have several new studies regarding the prevention of migraine, but very few studies involving nondrug treatments for tension-type headache.

A working group in Göttingen, Germany, conducted a study in people with frequent episodic and chronic tension-type headache. The first of the four randomized groups received traditional Chinese acupuncture for 3 months. The second group received physical therapy and exercise for 1 hour per week for 12 weeks. The third group received a combination of acupuncture and exercise. The last was a control group that received only standard care.

The outcome parameters of tension-type headache were evaluated after 6 months and again after 12 months. Previously, these same researchers published that the intensity but not the frequency of tension-type headache was reduced by active therapy.

In Cephalalgia, they published the outcome for the endpoints of depression, anxiety, and quality of life. Acupuncture, exercise, and the combination of the two improved depression, anxiety, and quality of life. This shows that nonmedical treatment is effective in people with frequent episodic and chronic tension-type headache.
 

Headache after COVID-19

The next study was published in Headache and discusses headache after COVID-19. In this review of published studies, more than 50% of people with COVID-19 develop headache. It is more frequent in young patients and people with preexisting primary headaches, such as migraine and tension-type headache. Prognosis is usually good, but some patients develop new, daily persistent headache, which is a major problem because treatment is unclear. We desperately need studies investigating how to treat this new, daily persistent headache after COVID-19.

SSRIs during COVID-19 infection

The next study also focuses on COVID-19. We have conflicting results from several studies suggesting that selective serotonin reuptake inhibitors might be effective in people with mild COVID-19 infection. This hypothesis was tested in a study in Brazil and was published in JAMA, The study included 1,288 outpatients with mild COVID-19 who either received 50 mg of fluvoxamine twice daily for 10 days or placebo. There was no benefit of the treatment for any outcome.

Preventing dementia with antihypertensive treatment

The next study was published in the European Heart Journal and addresses the question of whether effective antihypertensive treatment in elderly persons can prevent dementia. This is a meta-analysis of five placebo-controlled trials with more than 28,000 patients. The meta-analysis clearly shows that treating hypertension in elderly patients does prevent dementia. The benefit is higher if the blood pressure is lowered by a larger amount which also stays true for elderly patients. There is no negative impact of lowering blood pressure in this population.

Antiplatelet therapy

The next study was published in Stroke and reexamines whether resumption of antiplatelet therapy should be early or late in people who had an intracerebral hemorrhage while on antiplatelet therapy. In the Taiwanese Health Registry, this was studied in 1,584 patients. The researchers divided participants into groups based on whether antiplatelet therapy was resumed within 30 days or after 30 days. In 1 year, the rate of recurrent intracerebral hemorrhage was 3.2%. There was no difference whether antiplatelet therapy was resumed early or late.

Regular exercise in Parkinson’s disease

The final study is a review of nonmedical therapy. This meta-analysis of 19 randomized trials looked at the benefit of regular exercise in patients with Parkinson’s disease and depression. The analysis clearly showed that rigorous and moderate exercise improved depression in patients with Parkinson’s disease. This is very important because exercise improves not only the symptoms of Parkinson’s disease but also comorbid depression while presenting no serious adverse events or side effects.

Dr. Diener is a professor in the department of neurology at Stroke Center–Headache Center, University Duisburg-Essen, Germany. He disclosed ties with Abbott, Addex Pharma, Alder, Allergan, Almirall, Amgen, Autonomic Technology, AstraZeneca, Bayer Vital, Berlin Chemie, Bristol-Myers Squibb, Boehringer Ingelheim, Chordate, CoAxia, Corimmun, Covidien, Coherex, CoLucid, Daiichi Sankyo, D-Pharm, Electrocore, Fresenius, GlaxoSmithKline, Grunenthal, Janssen-Cilag, Labrys Biologics Lilly, La Roche, Lundbeck, 3M Medica, MSD, Medtronic, Menarini, MindFrame, Minster, Neuroscore, Neurobiological Technologies, Novartis, Novo Nordisk, Johnson & Johnson, Knoll, Paion, Parke-Davis, Pierre Fabre, Pfizer Inc, Schaper and Brummer, Sanofi-Aventis, Schering-Plough, Servier, Solvay, St. Jude, Talecris, Thrombogenics, WebMD Global, Weber and Weber, Wyeth, and Yamanouchi. Dr. Diener has served as editor of Aktuelle Neurologie, Arzneimitteltherapie, Kopfschmerz News, Stroke News, and the Treatment Guidelines of the German Neurological Society; as co-editor of Cephalalgia; and on the editorial board of The Lancet Neurology, Stroke, European Neurology, and Cerebrovascular Disorders. The department of neurology in Essen is supported by the German Research Council, the German Ministry of Education and Research, European Union, National Institutes of Health, Bertelsmann Foundation, and Heinz Nixdorf Foundation. Dr. Diener has no ownership interest and does not own stocks in any pharmaceutical company. A version of this article originally appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I am Christoph Diener from the medical faculty of the University of Duisburg-Essen in Germany. Today, I would like to discuss what happened in neurology in the past month.
 

Treatment of tension-type headache

I would like to start with headache. You are all aware that we have several new studies regarding the prevention of migraine, but very few studies involving nondrug treatments for tension-type headache.

A working group in Göttingen, Germany, conducted a study in people with frequent episodic and chronic tension-type headache. The first of the four randomized groups received traditional Chinese acupuncture for 3 months. The second group received physical therapy and exercise for 1 hour per week for 12 weeks. The third group received a combination of acupuncture and exercise. The last was a control group that received only standard care.

The outcome parameters of tension-type headache were evaluated after 6 months and again after 12 months. Previously, these same researchers published that the intensity but not the frequency of tension-type headache was reduced by active therapy.

In Cephalalgia, they published the outcome for the endpoints of depression, anxiety, and quality of life. Acupuncture, exercise, and the combination of the two improved depression, anxiety, and quality of life. This shows that nonmedical treatment is effective in people with frequent episodic and chronic tension-type headache.
 

Headache after COVID-19

The next study was published in Headache and discusses headache after COVID-19. In this review of published studies, more than 50% of people with COVID-19 develop headache. It is more frequent in young patients and people with preexisting primary headaches, such as migraine and tension-type headache. Prognosis is usually good, but some patients develop new, daily persistent headache, which is a major problem because treatment is unclear. We desperately need studies investigating how to treat this new, daily persistent headache after COVID-19.

SSRIs during COVID-19 infection

The next study also focuses on COVID-19. We have conflicting results from several studies suggesting that selective serotonin reuptake inhibitors might be effective in people with mild COVID-19 infection. This hypothesis was tested in a study in Brazil and was published in JAMA, The study included 1,288 outpatients with mild COVID-19 who either received 50 mg of fluvoxamine twice daily for 10 days or placebo. There was no benefit of the treatment for any outcome.

Preventing dementia with antihypertensive treatment

The next study was published in the European Heart Journal and addresses the question of whether effective antihypertensive treatment in elderly persons can prevent dementia. This is a meta-analysis of five placebo-controlled trials with more than 28,000 patients. The meta-analysis clearly shows that treating hypertension in elderly patients does prevent dementia. The benefit is higher if the blood pressure is lowered by a larger amount which also stays true for elderly patients. There is no negative impact of lowering blood pressure in this population.

Antiplatelet therapy

The next study was published in Stroke and reexamines whether resumption of antiplatelet therapy should be early or late in people who had an intracerebral hemorrhage while on antiplatelet therapy. In the Taiwanese Health Registry, this was studied in 1,584 patients. The researchers divided participants into groups based on whether antiplatelet therapy was resumed within 30 days or after 30 days. In 1 year, the rate of recurrent intracerebral hemorrhage was 3.2%. There was no difference whether antiplatelet therapy was resumed early or late.

Regular exercise in Parkinson’s disease

The final study is a review of nonmedical therapy. This meta-analysis of 19 randomized trials looked at the benefit of regular exercise in patients with Parkinson’s disease and depression. The analysis clearly showed that rigorous and moderate exercise improved depression in patients with Parkinson’s disease. This is very important because exercise improves not only the symptoms of Parkinson’s disease but also comorbid depression while presenting no serious adverse events or side effects.

Dr. Diener is a professor in the department of neurology at Stroke Center–Headache Center, University Duisburg-Essen, Germany. He disclosed ties with Abbott, Addex Pharma, Alder, Allergan, Almirall, Amgen, Autonomic Technology, AstraZeneca, Bayer Vital, Berlin Chemie, Bristol-Myers Squibb, Boehringer Ingelheim, Chordate, CoAxia, Corimmun, Covidien, Coherex, CoLucid, Daiichi Sankyo, D-Pharm, Electrocore, Fresenius, GlaxoSmithKline, Grunenthal, Janssen-Cilag, Labrys Biologics Lilly, La Roche, Lundbeck, 3M Medica, MSD, Medtronic, Menarini, MindFrame, Minster, Neuroscore, Neurobiological Technologies, Novartis, Novo Nordisk, Johnson & Johnson, Knoll, Paion, Parke-Davis, Pierre Fabre, Pfizer Inc, Schaper and Brummer, Sanofi-Aventis, Schering-Plough, Servier, Solvay, St. Jude, Talecris, Thrombogenics, WebMD Global, Weber and Weber, Wyeth, and Yamanouchi. Dr. Diener has served as editor of Aktuelle Neurologie, Arzneimitteltherapie, Kopfschmerz News, Stroke News, and the Treatment Guidelines of the German Neurological Society; as co-editor of Cephalalgia; and on the editorial board of The Lancet Neurology, Stroke, European Neurology, and Cerebrovascular Disorders. The department of neurology in Essen is supported by the German Research Council, the German Ministry of Education and Research, European Union, National Institutes of Health, Bertelsmann Foundation, and Heinz Nixdorf Foundation. Dr. Diener has no ownership interest and does not own stocks in any pharmaceutical company. A version of this article originally appeared on Medscape.com.

This transcript has been edited for clarity.

Dear colleagues, I am Christoph Diener from the faculty of medicine at the University of Duisburg-Essen in Germany.

Usually in this video series, I report on interesting scientific studies in the field of neurology published in the last month. But I have to admit, June was a lousy month for new science in neurology. Therefore, this month I’d like to take a different approach and tell you about a very interesting, old drug.

We are celebrating the 125th anniversary of aspirin. Aspirin was first synthesized in Wuppertal, Germany, a city which is only 40 km from my location, by Felix Hoffmann. Hoffmann was searching for a new drug for his father who suffered from severe joint pain, and the available drugs at that time had terrible adverse events. This prompted him to work on a new drug, which was later called aspirin acetylsalicylic acid.

Aspirin has been used very successfully to the present day as therapy for joint pain or arthritis. But as you know, it’s also effective in headaches, in particular, tension-type headache. I think it’s one of the most used drugs in the world for the treatment of acute migraine attacks.

It’s also available in some European countries in intravenous form for the treatment of severe migraine attacks or in the emergency room, and it’s as effective as subcutaneous sumatriptan. It’s also an effective migraine preventive drug in a dose of 300 mg/d.
 

Discovering aspirin’s antiplatelet activity

There was an interesting observation by a dentist in the 1930s, who noted bleeding when he extracted teeth in people who took aspirin for joint pain. When he started to ask his patients about possible bleeding complications and vascular events, he observed that people who took aspirin didn’t have coronary myocardial infarctions.

It took a long time for people to discover that aspirin is not only a pain medication but also an antiplatelet agent. The first randomized study that showed that aspirin is effective in secondary prevention after myocardial infarction was published in 1974 in The New England Journal of Medicine. In 1980, aspirin was approved by the U.S. Food and Drug Administration for the secondary prevention of stroke and in 1984 for secondary prevention after myocardial infarction.

A history of efficacy

Aspirin also has a proven role in the secondary prevention of transient ischemic attack and ischemic stroke. Given early, it reduces the risk for a recurrent vascular event by 50% and long-term, compared with placebo, by 20%.

Interestingly, the doses are different in different areas of the world. In the United States, it’s either 81 mg or 325 mg. In Europe, it’s usually 100 mg. Until a few years ago, there was no single trial which used 100 mg of aspirin, compared with placebo for the secondary prevention of stroke.

If we look at dual antiplatelet therapy, the combination of aspirin and clopidogrel was not superior to aspirin alone or clopidogrel alone for long-term prevention, but the combination of dipyridamole and aspirin and the combination of cilostazol and aspirin were superior to aspirin alone for secondary stroke prevention. Short-term, within the first 30 days, the combination of aspirin and clopidogrel and the combination of ticagrelor and aspirin is superior to monotherapy but also have an increased risk for bleeding.

People with atrial fibrillation or embolic strokes need to be anticoagulated, but the addition of aspirin to anticoagulation does not increase efficacy, it only increases the risk for bleeding.

In people above the age of 75 years who have to take aspirin, there is an increased risk for upper gastrointestinal bleeding. These patients should, in addition, receive proton pump inhibitors.

The use of aspirin for the primary prevention of vascular events was promoted for almost 50 years all over the world, but in the last 5 years, a number of randomized trials clearly showed that aspirin is not effective, compared with placebo, in the primary prevention of vascular event stroke, myocardial infarction, and vascular death. It only increases the risk for bleeding.

So it’s a clear separation. Aspirin should not be used for primary prevention of vascular events, but it should be used in basically everyone who doesn’t have contraindications for secondary prevention of vascular events and vascular death.

Ladies and gentlemen, a drug that is 125 years old is also still one of the most used and affordable drugs all around the world. It’s highly effective and has only a small risk for major bleeding complications. It’s really time to celebrate aspirin for this achievement.

Dr. Diener is professor, department of neurology, Stroke Center-Headache Center, University Duisburg-Essen (Germany). A complete list of his financial disclosures is available at the link below.

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

This transcript has been edited for clarity.

Dear colleagues, I am Christoph Diener from the faculty of medicine at the University of Duisburg-Essen in Germany.

Usually in this video series, I report on interesting scientific studies in the field of neurology published in the last month. But I have to admit, June was a lousy month for new science in neurology. Therefore, this month I’d like to take a different approach and tell you about a very interesting, old drug.

We are celebrating the 125th anniversary of aspirin. Aspirin was first synthesized in Wuppertal, Germany, a city which is only 40 km from my location, by Felix Hoffmann. Hoffmann was searching for a new drug for his father who suffered from severe joint pain, and the available drugs at that time had terrible adverse events. This prompted him to work on a new drug, which was later called aspirin acetylsalicylic acid.

Aspirin has been used very successfully to the present day as therapy for joint pain or arthritis. But as you know, it’s also effective in headaches, in particular, tension-type headache. I think it’s one of the most used drugs in the world for the treatment of acute migraine attacks.

It’s also available in some European countries in intravenous form for the treatment of severe migraine attacks or in the emergency room, and it’s as effective as subcutaneous sumatriptan. It’s also an effective migraine preventive drug in a dose of 300 mg/d.
 

Discovering aspirin’s antiplatelet activity

There was an interesting observation by a dentist in the 1930s, who noted bleeding when he extracted teeth in people who took aspirin for joint pain. When he started to ask his patients about possible bleeding complications and vascular events, he observed that people who took aspirin didn’t have coronary myocardial infarctions.

It took a long time for people to discover that aspirin is not only a pain medication but also an antiplatelet agent. The first randomized study that showed that aspirin is effective in secondary prevention after myocardial infarction was published in 1974 in The New England Journal of Medicine. In 1980, aspirin was approved by the U.S. Food and Drug Administration for the secondary prevention of stroke and in 1984 for secondary prevention after myocardial infarction.

A history of efficacy

Aspirin also has a proven role in the secondary prevention of transient ischemic attack and ischemic stroke. Given early, it reduces the risk for a recurrent vascular event by 50% and long-term, compared with placebo, by 20%.

Interestingly, the doses are different in different areas of the world. In the United States, it’s either 81 mg or 325 mg. In Europe, it’s usually 100 mg. Until a few years ago, there was no single trial which used 100 mg of aspirin, compared with placebo for the secondary prevention of stroke.

If we look at dual antiplatelet therapy, the combination of aspirin and clopidogrel was not superior to aspirin alone or clopidogrel alone for long-term prevention, but the combination of dipyridamole and aspirin and the combination of cilostazol and aspirin were superior to aspirin alone for secondary stroke prevention. Short-term, within the first 30 days, the combination of aspirin and clopidogrel and the combination of ticagrelor and aspirin is superior to monotherapy but also have an increased risk for bleeding.

People with atrial fibrillation or embolic strokes need to be anticoagulated, but the addition of aspirin to anticoagulation does not increase efficacy, it only increases the risk for bleeding.

In people above the age of 75 years who have to take aspirin, there is an increased risk for upper gastrointestinal bleeding. These patients should, in addition, receive proton pump inhibitors.

The use of aspirin for the primary prevention of vascular events was promoted for almost 50 years all over the world, but in the last 5 years, a number of randomized trials clearly showed that aspirin is not effective, compared with placebo, in the primary prevention of vascular event stroke, myocardial infarction, and vascular death. It only increases the risk for bleeding.

So it’s a clear separation. Aspirin should not be used for primary prevention of vascular events, but it should be used in basically everyone who doesn’t have contraindications for secondary prevention of vascular events and vascular death.

Ladies and gentlemen, a drug that is 125 years old is also still one of the most used and affordable drugs all around the world. It’s highly effective and has only a small risk for major bleeding complications. It’s really time to celebrate aspirin for this achievement.

Dr. Diener is professor, department of neurology, Stroke Center-Headache Center, University Duisburg-Essen (Germany). A complete list of his financial disclosures is available at the link below.

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

This transcript has been edited for clarity.

Dear colleagues, I am Christoph Diener from the faculty of medicine at the University of Duisburg-Essen in Germany.

Usually in this video series, I report on interesting scientific studies in the field of neurology published in the last month. But I have to admit, June was a lousy month for new science in neurology. Therefore, this month I’d like to take a different approach and tell you about a very interesting, old drug.

We are celebrating the 125th anniversary of aspirin. Aspirin was first synthesized in Wuppertal, Germany, a city which is only 40 km from my location, by Felix Hoffmann. Hoffmann was searching for a new drug for his father who suffered from severe joint pain, and the available drugs at that time had terrible adverse events. This prompted him to work on a new drug, which was later called aspirin acetylsalicylic acid.

Aspirin has been used very successfully to the present day as therapy for joint pain or arthritis. But as you know, it’s also effective in headaches, in particular, tension-type headache. I think it’s one of the most used drugs in the world for the treatment of acute migraine attacks.

It’s also available in some European countries in intravenous form for the treatment of severe migraine attacks or in the emergency room, and it’s as effective as subcutaneous sumatriptan. It’s also an effective migraine preventive drug in a dose of 300 mg/d.
 

Discovering aspirin’s antiplatelet activity

There was an interesting observation by a dentist in the 1930s, who noted bleeding when he extracted teeth in people who took aspirin for joint pain. When he started to ask his patients about possible bleeding complications and vascular events, he observed that people who took aspirin didn’t have coronary myocardial infarctions.

It took a long time for people to discover that aspirin is not only a pain medication but also an antiplatelet agent. The first randomized study that showed that aspirin is effective in secondary prevention after myocardial infarction was published in 1974 in The New England Journal of Medicine. In 1980, aspirin was approved by the U.S. Food and Drug Administration for the secondary prevention of stroke and in 1984 for secondary prevention after myocardial infarction.

A history of efficacy

Aspirin also has a proven role in the secondary prevention of transient ischemic attack and ischemic stroke. Given early, it reduces the risk for a recurrent vascular event by 50% and long-term, compared with placebo, by 20%.

Interestingly, the doses are different in different areas of the world. In the United States, it’s either 81 mg or 325 mg. In Europe, it’s usually 100 mg. Until a few years ago, there was no single trial which used 100 mg of aspirin, compared with placebo for the secondary prevention of stroke.

If we look at dual antiplatelet therapy, the combination of aspirin and clopidogrel was not superior to aspirin alone or clopidogrel alone for long-term prevention, but the combination of dipyridamole and aspirin and the combination of cilostazol and aspirin were superior to aspirin alone for secondary stroke prevention. Short-term, within the first 30 days, the combination of aspirin and clopidogrel and the combination of ticagrelor and aspirin is superior to monotherapy but also have an increased risk for bleeding.

People with atrial fibrillation or embolic strokes need to be anticoagulated, but the addition of aspirin to anticoagulation does not increase efficacy, it only increases the risk for bleeding.

In people above the age of 75 years who have to take aspirin, there is an increased risk for upper gastrointestinal bleeding. These patients should, in addition, receive proton pump inhibitors.

The use of aspirin for the primary prevention of vascular events was promoted for almost 50 years all over the world, but in the last 5 years, a number of randomized trials clearly showed that aspirin is not effective, compared with placebo, in the primary prevention of vascular event stroke, myocardial infarction, and vascular death. It only increases the risk for bleeding.

So it’s a clear separation. Aspirin should not be used for primary prevention of vascular events, but it should be used in basically everyone who doesn’t have contraindications for secondary prevention of vascular events and vascular death.

Ladies and gentlemen, a drug that is 125 years old is also still one of the most used and affordable drugs all around the world. It’s highly effective and has only a small risk for major bleeding complications. It’s really time to celebrate aspirin for this achievement.

Dr. Diener is professor, department of neurology, Stroke Center-Headache Center, University Duisburg-Essen (Germany). A complete list of his financial disclosures is available at the link below.

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