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Comparative PK/PD of FMXIN002 and EpiPen, in Healthy Adults With Allergic Rhinitis

A Comparison of PK and PD Responses Following Single and Repeat Administration of Epinephrine Nasal FMXIN002 4.0 mg and EpiPen 0.3 mg, in Healthy Adults With Allergic Rhinitis

Status
Enrolling by invitation
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07228325
Enrollment
50
Registered
2025-11-14
Start date
2025-11-03
Completion date
2026-04-30
Last updated
2025-11-14

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Allergy, Anaphylaxis

Brief summary

The study will evaluate the pharmacokinetic (PK) and pharmacodynamic (PD) responses of FMXIN002, an intranasal epinephrine powder, compared with the EpiPen® intramuscular autoinjector, after single and double doses, in healthy adults with a history of allergic rhinitis.

Detailed description

Fifty participants will receive single and repeat doses of both treatments under normal and nasal congestion conditions induced by nasal allergen challenge. The study will also assess the effect of repeat nasal dosing in the same versus opposite nostrils. PK parameters and hemodynamic responses will be measured, and safety and tolerability will be evaluated.

Interventions

DRUGFMXIN002 single dose

Single dose of FMXIN002 epinephrine microspheres powder for nasal application, 4.0 mg, at normal conditions.

DRUGEpinephrine autoinjector single dose

Epinephrine IM autoinjector 0.3mg

DRUGFMXIN002 single dose + NAC

Single dose of FMXIN002 epinephrine microspheres powder for nasal application, 4.0 mg, after Nasal Allergenic Challenge (NAC)

DRUGEpinephrine autoinjector double dose

Repeated doses of Epinephrine IM autoinjector 0.3mg, 10 minutes apart

DRUGFMXIN002 double dose

Double doses of FMXIN002 epinephrine microspheres powder for nasal application, 4.0 mg, at normal conditions, 10 minutes apart.

DRUGFMXIN002 double dose + NAC

Double doses of FMXIN002 epinephrine microspheres powder for nasal application, 4.0 mg, after Nasal Allergenic Challenge, 10 minutes apart.

Sponsors

Nasus Pharma
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
Yes

Inclusion criteria

1. Non-smoking, male and female participants, from 18 to 55 years of age. 2. Documented positive skin allergy test at screening. 3. History of hay fever, seasonal allergies, or allergic rhinitis during the last year. 4. BMI ≥18 and \< =30 kg/m2. 5. Females may be of childbearing or non-childbearing potential: * Childbearing potential: o Physically capable of becoming pregnant, must be willing to use acceptable effective methods of contraception. * Non-childbearing potential: * Surgically sterile (i.e., both ovaries removed, uterus removed, or bilateral tubal ligation); and/or * Postmenopausal (no menstrual period for at least 12 consecutive months without any other medical cause and a FSH value consistent with being postmenopausal). 6. Able to tolerate venipuncture. 7. Be informed of the nature of the study and give written consent prior to any study procedure. 8. Willing and able to remain in the clinic for the entire duration of the confinement period. 9. Have good intravenous access on both arms and hands. -

Exclusion criteria

* History of clinically significant neurologic, hematologic, endocrine, oncologic, pulmonary, immunologic, genitourinary, psychiatric, or cardiovascular disease or any other condition which, in the opinion of the Investigator, would jeopardize the safety of the participant or impact the validity of the study results. * Have clinically significant findings at screening. * Females who: * Have discontinued or changed the use of implanted, intrauterine, intravaginal, or injected hormonal contraceptives within 6 months prior to the first drug administration; * Have discontinued or changed the use of oral or patch hormonal contraceptives within one (1) month prior to the first drug administration; * Are pregnant (serum β-hCG consistent with pregnancy); or * Are breast-feeding.

Design outcomes

Primary

MeasureTime frameDescription
Respiratory rate-60 to 120 minutes post administrationPharmacodynamic response to epinephrine
Epinephrine level in plasma over time-60 to 240 minutes post administrationMeasurements in 14 timepoints
Tmax-60 to 240 minutes post administrationTime to maximum epinephrine level in plasma
T100pg/ml-60 to 240 minutes post administrationTime to reach epinephrine level of 100pg/ml in plasma
Cmax-60 to 240 minutes post administrationMaximum epinephrine level in plasma
AUC0 to 240 minutes post administrationTotal exposure to epinephrine
Blood pressure-60 to 120 minutes post administrationPharmacodynamic response to epinephrine
Heart rate-60 to 120 minutes post administrationPharmacodynamic response to epinephrine

Secondary

MeasureTime frameDescription
Safety and tolerabilityDay -29 to day 50Adverse events rate at each treatment, and severity.

Countries

Canada

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026