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, a new study suggests.
A phase 3, open-label trial of INP104, or Trudhesa – Impel NeuroPharma’s proprietary Precision Olfactory Delivery of DHE – found that most patients experienced symptom relief within 2 hours and reported that the medication was easy to use and preferable to their current therapy.
Another treatment option?
Of about 18 million diagnosed migraine patients in the United States, 4 million receive prescription treatment. Nearly 80% of migraine therapies involve triptans, but 30%-40% of patients don’t find adequate relief with triptans. Moreover, the majority of patients who do respond to triptans report that they’d like to try a different therapy.
“INP104 has the potential to deliver rapid symptom relief, without injection, that is well tolerated and suitable for outpatient us,” lead author Timothy Smith, MD, of StudyMetrix Research, St. Louis, and colleagues wrote in the paper.
The results were published online Aug. 7 in Headache.
A total of 360 patients aged 18-65 years with a diagnosis of migraine with or without aura with at least two attacks per month over the course of the previous 6 months were enrolled in the 24-week safety study, which had a 28-week extension period. Participants used their “best usual care” to treat their migraines during the initial 28-day screening period. Afterward, they were given 1.45-mg doses of INP04 to self-administer into the upper nasal space to treat self-recognized attacks. No more than two doses per 24 hours and three doses per 7 days were allowed. The Full Safety Set analysis comprised 354 patients who dosed at least once. The Primary Safety Set involved 185 patients who administered an average of two or more doses per 28-day period during the 24-week treatment period. A total of 4,515 self-recognized migraines were treated during the 24-week period; 6,332 doses of INP04 were analyzed.
Nearly 37% (130/354) of patients reported treatment-emergent adverse events (TEAEs); 6.8% (24/354) discontinued treatment because of the TEAEs over the 24 weeks. The most common TEAE was nasal congestion (15%, 53/354), followed by nausea (6.8%, 24/354).
Within an hour of INP104 administration, 47.6% of patients reported pain relief. After 2 hours of INP104 administration, 38% reported pain freedom and 66.3% reported pain relief. Headache recurrence was observed in 7.1% and 14.3% of patients at 24 and 48 hours, respectively.
In a questionnaire, 84% of patients agreed or strongly agreed that INP04 was easy to use. Most reported that INP104 slowed the recurrence of their migraines and was more rapidly and consistently effective than their previous best usual care treatment.
Intranasal delivery of DHE was developed in response to the challenges of traditional IV administration.
“While intravenous (IV) dihydroergotamine (DHE) mesylate has a long, established history as an effective migraine therapy, its use as an acute treatment can be limited by the high rate of nausea and vomiting reported by patients, which often requires pretreatment with antiemetics,” Dr. Smith and colleagues wrote. “Furthermore, IV DHE mesylate needs to be administered in emergency room settings or by headache specialists, limiting convenience.”
A novel delivery system
“There’s already a nasal spray on the market right now which doesn’t seem to work that well in a large number of people. This device [INP04] was designed to get the same substances to a part of the nose that’s higher and farther back, where there may be better absorption,” said Alan Rapoport, MD, clinical professor of neurology at the University of California, Los Angeles, said in an interview. Dr. Rapoport was not involved with the study.
The proprietary Precision Olfactory Delivery (POD) is meant to improve on current nasal delivery methods such as sprays, droppers, and pumps, which may deliver “less than 5% of the active drug to the upper nasal space,” according to a press release from Impel NeuroPharma.
Nasal delivery also may have advantages over oral medications. People with migraines may be more likely to have gastroparesis – delayed stomach emptying – which may affect their ability to absorb oral medications and delay symptom relief. However, patients may hesitate to agree to a medication that involves nasal delivery, Dr. Rapoport said.
“I will say it’s a little more difficult getting your patients to take a nasal spray,” Dr. Rapoport said. “Patients are used to taking tablets for their headaches,” he said. “But if the doctor spends a little more time with the patient and says, ‘Look, this could work faster for your migraine as a nasal spray. Why don’t you try it a couple of times and see if you like it or not?’ patients are usually willing to give it a try.”
The study’s limitations include the lack of a control group given that it was an open-label trial. It was carried out at 38 sites in one geographical area, which may affect the generalizability of the results. The study did not assess patients with new-onset migraine or chronic migraine.
The Food and Drug Administration approved Trudhesa on Sept. 2, 2021.
The study was funded by Impel NeuroPharma. Dr. Smith has received funding from a number of pharmaceutical companies. Dr. Rapoport disclosed no relevant financial relationships.
, a new study suggests.
A phase 3, open-label trial of INP104, or Trudhesa – Impel NeuroPharma’s proprietary Precision Olfactory Delivery of DHE – found that most patients experienced symptom relief within 2 hours and reported that the medication was easy to use and preferable to their current therapy.
Another treatment option?
Of about 18 million diagnosed migraine patients in the United States, 4 million receive prescription treatment. Nearly 80% of migraine therapies involve triptans, but 30%-40% of patients don’t find adequate relief with triptans. Moreover, the majority of patients who do respond to triptans report that they’d like to try a different therapy.
“INP104 has the potential to deliver rapid symptom relief, without injection, that is well tolerated and suitable for outpatient us,” lead author Timothy Smith, MD, of StudyMetrix Research, St. Louis, and colleagues wrote in the paper.
The results were published online Aug. 7 in Headache.
A total of 360 patients aged 18-65 years with a diagnosis of migraine with or without aura with at least two attacks per month over the course of the previous 6 months were enrolled in the 24-week safety study, which had a 28-week extension period. Participants used their “best usual care” to treat their migraines during the initial 28-day screening period. Afterward, they were given 1.45-mg doses of INP04 to self-administer into the upper nasal space to treat self-recognized attacks. No more than two doses per 24 hours and three doses per 7 days were allowed. The Full Safety Set analysis comprised 354 patients who dosed at least once. The Primary Safety Set involved 185 patients who administered an average of two or more doses per 28-day period during the 24-week treatment period. A total of 4,515 self-recognized migraines were treated during the 24-week period; 6,332 doses of INP04 were analyzed.
Nearly 37% (130/354) of patients reported treatment-emergent adverse events (TEAEs); 6.8% (24/354) discontinued treatment because of the TEAEs over the 24 weeks. The most common TEAE was nasal congestion (15%, 53/354), followed by nausea (6.8%, 24/354).
Within an hour of INP104 administration, 47.6% of patients reported pain relief. After 2 hours of INP104 administration, 38% reported pain freedom and 66.3% reported pain relief. Headache recurrence was observed in 7.1% and 14.3% of patients at 24 and 48 hours, respectively.
In a questionnaire, 84% of patients agreed or strongly agreed that INP04 was easy to use. Most reported that INP104 slowed the recurrence of their migraines and was more rapidly and consistently effective than their previous best usual care treatment.
Intranasal delivery of DHE was developed in response to the challenges of traditional IV administration.
“While intravenous (IV) dihydroergotamine (DHE) mesylate has a long, established history as an effective migraine therapy, its use as an acute treatment can be limited by the high rate of nausea and vomiting reported by patients, which often requires pretreatment with antiemetics,” Dr. Smith and colleagues wrote. “Furthermore, IV DHE mesylate needs to be administered in emergency room settings or by headache specialists, limiting convenience.”
A novel delivery system
“There’s already a nasal spray on the market right now which doesn’t seem to work that well in a large number of people. This device [INP04] was designed to get the same substances to a part of the nose that’s higher and farther back, where there may be better absorption,” said Alan Rapoport, MD, clinical professor of neurology at the University of California, Los Angeles, said in an interview. Dr. Rapoport was not involved with the study.
The proprietary Precision Olfactory Delivery (POD) is meant to improve on current nasal delivery methods such as sprays, droppers, and pumps, which may deliver “less than 5% of the active drug to the upper nasal space,” according to a press release from Impel NeuroPharma.
Nasal delivery also may have advantages over oral medications. People with migraines may be more likely to have gastroparesis – delayed stomach emptying – which may affect their ability to absorb oral medications and delay symptom relief. However, patients may hesitate to agree to a medication that involves nasal delivery, Dr. Rapoport said.
“I will say it’s a little more difficult getting your patients to take a nasal spray,” Dr. Rapoport said. “Patients are used to taking tablets for their headaches,” he said. “But if the doctor spends a little more time with the patient and says, ‘Look, this could work faster for your migraine as a nasal spray. Why don’t you try it a couple of times and see if you like it or not?’ patients are usually willing to give it a try.”
The study’s limitations include the lack of a control group given that it was an open-label trial. It was carried out at 38 sites in one geographical area, which may affect the generalizability of the results. The study did not assess patients with new-onset migraine or chronic migraine.
The Food and Drug Administration approved Trudhesa on Sept. 2, 2021.
The study was funded by Impel NeuroPharma. Dr. Smith has received funding from a number of pharmaceutical companies. Dr. Rapoport disclosed no relevant financial relationships.
, a new study suggests.
A phase 3, open-label trial of INP104, or Trudhesa – Impel NeuroPharma’s proprietary Precision Olfactory Delivery of DHE – found that most patients experienced symptom relief within 2 hours and reported that the medication was easy to use and preferable to their current therapy.
Another treatment option?
Of about 18 million diagnosed migraine patients in the United States, 4 million receive prescription treatment. Nearly 80% of migraine therapies involve triptans, but 30%-40% of patients don’t find adequate relief with triptans. Moreover, the majority of patients who do respond to triptans report that they’d like to try a different therapy.
“INP104 has the potential to deliver rapid symptom relief, without injection, that is well tolerated and suitable for outpatient us,” lead author Timothy Smith, MD, of StudyMetrix Research, St. Louis, and colleagues wrote in the paper.
The results were published online Aug. 7 in Headache.
A total of 360 patients aged 18-65 years with a diagnosis of migraine with or without aura with at least two attacks per month over the course of the previous 6 months were enrolled in the 24-week safety study, which had a 28-week extension period. Participants used their “best usual care” to treat their migraines during the initial 28-day screening period. Afterward, they were given 1.45-mg doses of INP04 to self-administer into the upper nasal space to treat self-recognized attacks. No more than two doses per 24 hours and three doses per 7 days were allowed. The Full Safety Set analysis comprised 354 patients who dosed at least once. The Primary Safety Set involved 185 patients who administered an average of two or more doses per 28-day period during the 24-week treatment period. A total of 4,515 self-recognized migraines were treated during the 24-week period; 6,332 doses of INP04 were analyzed.
Nearly 37% (130/354) of patients reported treatment-emergent adverse events (TEAEs); 6.8% (24/354) discontinued treatment because of the TEAEs over the 24 weeks. The most common TEAE was nasal congestion (15%, 53/354), followed by nausea (6.8%, 24/354).
Within an hour of INP104 administration, 47.6% of patients reported pain relief. After 2 hours of INP104 administration, 38% reported pain freedom and 66.3% reported pain relief. Headache recurrence was observed in 7.1% and 14.3% of patients at 24 and 48 hours, respectively.
In a questionnaire, 84% of patients agreed or strongly agreed that INP04 was easy to use. Most reported that INP104 slowed the recurrence of their migraines and was more rapidly and consistently effective than their previous best usual care treatment.
Intranasal delivery of DHE was developed in response to the challenges of traditional IV administration.
“While intravenous (IV) dihydroergotamine (DHE) mesylate has a long, established history as an effective migraine therapy, its use as an acute treatment can be limited by the high rate of nausea and vomiting reported by patients, which often requires pretreatment with antiemetics,” Dr. Smith and colleagues wrote. “Furthermore, IV DHE mesylate needs to be administered in emergency room settings or by headache specialists, limiting convenience.”
A novel delivery system
“There’s already a nasal spray on the market right now which doesn’t seem to work that well in a large number of people. This device [INP04] was designed to get the same substances to a part of the nose that’s higher and farther back, where there may be better absorption,” said Alan Rapoport, MD, clinical professor of neurology at the University of California, Los Angeles, said in an interview. Dr. Rapoport was not involved with the study.
The proprietary Precision Olfactory Delivery (POD) is meant to improve on current nasal delivery methods such as sprays, droppers, and pumps, which may deliver “less than 5% of the active drug to the upper nasal space,” according to a press release from Impel NeuroPharma.
Nasal delivery also may have advantages over oral medications. People with migraines may be more likely to have gastroparesis – delayed stomach emptying – which may affect their ability to absorb oral medications and delay symptom relief. However, patients may hesitate to agree to a medication that involves nasal delivery, Dr. Rapoport said.
“I will say it’s a little more difficult getting your patients to take a nasal spray,” Dr. Rapoport said. “Patients are used to taking tablets for their headaches,” he said. “But if the doctor spends a little more time with the patient and says, ‘Look, this could work faster for your migraine as a nasal spray. Why don’t you try it a couple of times and see if you like it or not?’ patients are usually willing to give it a try.”
The study’s limitations include the lack of a control group given that it was an open-label trial. It was carried out at 38 sites in one geographical area, which may affect the generalizability of the results. The study did not assess patients with new-onset migraine or chronic migraine.
The Food and Drug Administration approved Trudhesa on Sept. 2, 2021.
The study was funded by Impel NeuroPharma. Dr. Smith has received funding from a number of pharmaceutical companies. Dr. Rapoport disclosed no relevant financial relationships.
From Headache