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1.
Diabetes Obes Metab ; 20(3): 646-653, 2018 03.
Article in English | MEDLINE | ID: mdl-29053231

ABSTRACT

AIMS: Nasal glucagon (NG) is a nasally-administered glucagon powder, absorbed through the nasal mucosa, designed for treatment of severe hypoglycaemia. This study evaluated the safety, pharmacokinetics (PK) and pharmacodynamics (PD) of NG in otherwise healthy participants with common colds and after recovery from cold symptoms, with and without concomitant nasal decongestant. MATERIALS AND METHODS: This was a single-centre, open-label study. Cohort 1 participants (N = 18) received 2 doses of NG: one while experiencing nasal congestion and another after recovery from cold symptoms. Cohort 2 participants (N = 18), who also had colds with nasal congestion, received a single dose of NG 2 hours after treatment with the decongestant oxymetazoline. Total symptoms score and other safety measures were assessed before and after NG administration. RESULTS: NG was well tolerated, without serious adverse events. Common adverse events (transient lacrimation, nasal discomfort, rhinorrhea and nausea) were more frequent in both Cohorts 1 and 2 during nasal congestion. Glucagon levels peaked 18 minutes post-dose and glucose levels peaked 30 to 42 minutes post-dose in all groups. Nasal congestion, with or without concomitant nasal decongestant, did not significantly affect PK of NG. Although glucose AUECs0-t was different between Cohort 1 with nasal congestion and Cohort 2, glucose concentrations at 30 minutes appeared similar in all groups. CONCLUSIONS: There were no clinically relevant differences in safety or PK/PD of NG associated with nasal congestion or concomitant administration of nasal decongestant, suggesting that NG can be used to treat severe hypoglycaemia in individuals experiencing nasal congestion.


Subject(s)
Common Cold/complications , Gastrointestinal Agents/administration & dosage , Glucagon/administration & dosage , Nasal Decongestants/pharmacology , Administration, Intranasal , Adult , Blood Glucose/drug effects , Blood Glucose/metabolism , Female , Gastrointestinal Agents/pharmacokinetics , Gastrointestinal Agents/pharmacology , Glucagon/pharmacokinetics , Glucagon/pharmacology , Healthy Volunteers , Humans , Hypoglycemia/drug therapy , Male , Nasal Obstruction/complications , Powders
2.
Diabetes Technol Ther ; 19(7): 423-432, 2017 07.
Article in English | MEDLINE | ID: mdl-28556672

ABSTRACT

BACKGROUND: During severe hypoglycemic episodes, people with diabetes depend on others to help with treatment. We compared needle-free nasal glucagon and commercially available injectable glucagon for ease of use by caregivers of people with diabetes and by others in treating simulated episodes of severe hypoglycemia. METHODS: Sixteen instructed caregivers and 15 noninstructed acquaintances administered nasal and injectable glucagon to manikins, simulating unconscious people with diabetes during severe hypoglycemia episodes. RESULTS: With nasal glucagon, 15 caregivers (94%) and 14 acquaintances (93%) administered a full dose (mean time 0.27 and 0.44 min, respectively). One caregiver and one acquaintance did not administer nasal glucagon because they did not fully depress the plunger on the device. Two caregivers deliberately administered both insulin and nasal glucagon, believing that insulin would also help the patient. With injectable glucagon, eight caregivers (50%) injected glucagon (mean time 1.89 min), but only two (13%) administered the full dose. Three acquaintances (20%) injected a partial dose of injectable glucagon (mean time 2.40 min); none gave a full dose. Errors included injecting diluent only, bending the needle, and injecting with an empty syringe. Two caregivers and one acquaintance injected insulin because they confused insulin with injectable glucagon. CONCLUSIONS: More than 90% of participants delivered full doses of nasal glucagon, while 13% and 0% of caregivers and acquaintances delivered full doses of injectable glucagon, indicating that nasal glucagon is easier for nonmedically trained people to administer. Thus, nasal glucagon has the potential to substantially improve treatment for patients experiencing a life-threatening episode of severe hypoglycemia.


Subject(s)
Blood Glucose , Diabetes Mellitus, Type 1/blood , Glucagon/therapeutic use , Hypoglycemia/drug therapy , Administration, Intranasal , Caregivers , Glucagon/administration & dosage , Humans , Hypoglycemia/blood , Injections , Manikins
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