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A Double-blinded, Randomised, and Placebo-controlled Safety Study of AT-301 Nasal Spray in Healthy Adults

A Double-blinded, Randomised, and Placebo-controlled Safety Study of AT-301 Nasal Spray in Healthy Adults

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12620000816954
Enrollment
32
Registered
2020-08-14
Start date
2020-08-17
Completion date
2020-10-16
Last updated
2021-07-05

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

Conditions

None listed

Brief summary

This is a randomized, double-blind, placebo-controlled, ascending dose, multi-cohort study. The study will be conducted in 2 parts: a single ascending dose (SAD) part (Part 1) followed by a multiple ascending dose (MAD) part (Part 2). Part 1 consists of two single-dose cohorts receiving either active therapy, AT-301B, or the placebo comparator AT-301A. Part 2 is a multiple dose arm with cohorts receiving either AT-301A or AT-301B for 14 days. The primary objective of the study is to evaluate the safety and tolerability of single and multiple doses of AT-301 administered via nasal instillation to healthy volunteers

Interventions

Participants will be randomised to one of the four cohorts only. AT-301 Nasal Spray Part 1 maximum exposure - 0.4 mL total (single dose) Each spray is metered to 0.1 mL, and a single dose is to be administered in Part 1. Part 1 has Cohort 1 and Cohort 2. Participants in Cohort 1 will receive 1 spray per nostril and Participants in Cohort 2 will receive 2 sprays per nostril. Participants will receive one or two sprays into each nostril once only. Part 2 maximum exposure - 16.8 mL total (over

Participants will be randomised to one of the four cohorts only. AT-301 Nasal Spray Part 1 maximum exposure - 0.4 mL total (single dose) Each spray is metered to 0.1 mL, and a single dose is to be administered in Part 1. Part 1 has Cohort 1 and Cohort 2. Participants in Cohort 1 will receive 1 spray per nostril and Participants in Cohort 2 will receive 2 sprays per nostril. Participants will receive one or two sprays into each nostril once only. Part 2 maximum exposure - 16.8 mL total (over 14 days) Each spray is metered to 0.1 mL, and is to be taken 3 times a day. Part 2 consists of Cohort 3 and Cohort 4. Participants in Cohort 3 will receive 1 spray per nostril and participants in Cohort 4 will receive 2 sprays per nostril Participants will receive one or two sprays per nostril three times a day for 14 days. Adherence will be monitored via diary / report.

Sponsors

Atossa Therapeutics Inc
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Primary purpose
Treatment

Eligibility

Sex/Gender
All
Age
18 Years to 64 Years
Healthy volunteers
Yes

Inclusion criteria

Healthy volunteers will be included in the study if they meet all of the following criteria: 1. Must have given written informed consent before any study-related activities are carried out and must be able to understand the full nature and purpose of the trial, including possible risks and adverse effects 2. Adult males and females, 18 to 64 years of age (inclusive) at the screening visit 3. Are non-smokers (including tobacco, e-cigarettes and marijuana) for a minimum of 1 month prior to the screening visit. Non-smokers with a significant history of smoking (> 5 pack years) are not eligible 4. Have a physically normal nasal structure (minor septum deviation allowable) 5. Body mass index (BMI) (calculated) within the range of 18 to 30 kg/m2 inclusive at the screening visit, and prior to dosing 6. Medically healthy without clinically significant abnormalities in the opinion of the investigator at the screening visit and prior to dosing on Day 1, including: a. Physical examination without any clinically significant findings b. Systolic blood pressure (BP) in the range of 90 to 140 mm Hg (inclusive) and diastolic BP in the range of 50 to 90 mm Hg (inclusive) after at least 5 minutes in a seated position c. Heart rate (HR) in the range of 45 to 100 beats/min (inclusive) after at least 5 minutes rest in a semi-recumbent position d. Normal body (tympanic) temperature (35.5.to 37.7°C, inclusive) e. The 12-lead electrocardiogram (ECG), taken after the volunteer has been supine for at least 5 minutes, must be within normal range (corrected QT interval [QTc] males less than or equal to 450 msec; females less than or equal to 470 msec) or with abnormalities that are not hazardous to the volunteer according to the opinion of the Investigator f. No clinically significant findings in serum chemistry, haematology, coagulation and urinalysis examinations as judged by the Investigator at screening 7. Negative cotinine, drug and alcohol tests at screening and prior to dosing on Day 1 8. Female volunteers must: a. Be of non-child-bearing potential i.e., have follicle-stimulating hormone levels >40 IU/L at screening and be surgically sterilized (hysterectomy, bilateral salpingectomy, bilateral oophorectomy at least 6 weeks before the Screening visit) or postmenopausal (where postmenopausal is defined as no menses for 12 months without an alternative medical cause), or b. If of childbearing potential, must have a negative pregnancy test at Screening (blood test) and before the first study drug administration (pre-dose Day 1 urine test). They must agree not to attempt to become pregnant, must not donate ova, and must agree to use 2 forms of highly effective contraceptive method for penile-vaginal intercourse from signing consent until at least 30 days after the last dose of study therapy 9. Male volunteers, if not surgically sterilised, must agree not to donate sperm and if engaging in sexual intercourse with a female partner who could become pregnant, must agree to use a condom in addition to having the female partner use a highly effective contraceptive method from signing the consent form until at least 64 days after the last dose of study therapy 10. Have suitable venous access for blood sampling 11. Willing and able to comply with the requirements of the study protocol

Exclusion criteria

Healthy volunteers will be excluded from the study if there is evidence of any of the following at screening or prior to dosing on Day 1: 1. History or presence of the following based on self-report: of tuberculosis, asthma (including childhood asthma), severe bronchial asthma, chronic obstructive pulmonary disease, peptic ulcer or major pulmonary airway disease 2. Previous diagnoses of nasal polyps or any ear, nose and throat pathology deemed by the Investigator to affect assessment of the investigational product 3. Active hay fever, rhinitis or cold 4. History or presence of significant cardiovascular, hepatic, renal, haematological, gastrointestinal, endocrine, immunologic, dermatologic, neurological or psychiatric disease, including any acute illness or surgery within the past three months determined by the PI to be clinically relevant 5. Known allergy to any of the formula components 6. Current obstructive pneumonia, severe pulmonary interstitial fibrosis, alveolar proteinosis and allergic alveolitis caused by lung tumour 7. Positive serum pregnancy test for women of childbearing potential at the Screening visit or positive urine pregnancy test with confirmatory serum pregnancy test prior to dosing on Day 1 8. Females who are breastfeeding 9. Liver function test results (i.e., aspartate aminotransferase [AST], alanine aminotransferase [ALT], and gamma-glutamyl transferase [GGT]) and total bilirubin < 1.5 x fold above the upper limit of normal at the screening visit. Elevated total bilirubin allowable if an isolated finding 10. Positive testing for active human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg), hepatitis C virus (HCV) antibodies, at the screening visit 11. Use of any prescription or over-the-counter medication (including herbal products, diet aids, and hormone supplements) within 10 days or 5 half-lives of the medication (whichever is longer) prior to the first study drug administration, except for contraceptives for female participants of childbearing potential and occasional use of paracetamol 12. Donation of blood or plasma within 30 days prior to randomization, or loss of whole blood of more than 500 mL within 30 days prior to randomization, or receipt of a blood transfusion within 1 year of study enrolment 13. Participation in another investigational clinical trial within 60 days or 5 half-lives (whichever is longer) in the case of an investigational drug prior to the first drug administration 14. Any other condition or prior therapy, which, in the opinion of the Investigator, would make the volunteer unsuitable for this study, including unable to cooperate fully with the requirements of the study protocol or likely to be non-compliant with any study requirements

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026