NCT05449392

Brief Summary

The primary objective of this study is to determine whether intranasal application of aminoglycoside (Neosporin) increases local nasal innate immune responses compared to placebo control in healthy participants.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
67

participants targeted

Target at P50-P75 for phase_1 covid19

Timeline
Completed

Started Sep 2022

Typical duration for phase_1 covid19

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

July 6, 2022

Completed
2 days until next milestone

First Posted

Study publicly available on registry

July 8, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2022

Completed
1.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 22, 2023

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 22, 2023

Completed
Last Updated

October 3, 2023

Status Verified

October 1, 2023

Enrollment Period

1.1 years

First QC Date

July 6, 2022

Last Update Submit

October 2, 2023

Conditions

Keywords

NeosporinAntibacterial agentintranasal application

Outcome Measures

Primary Outcomes (4)

  • Change in in interferon response profile from nasal samples collected measured by a multiplex ELISA assay

    Measurement of interferon response from samples collected using a multiplex ELISA to detect which interferon-stimulated genes (ISGs) are present in sample. ISGs measured include Irf7, Oas1a, Oasl2, Cxcl9, and CxcL10 as well as other corresponding interferons such as Ifna, ifnb, and ifnl

    From baseline up to Month 1

  • Change in in interferon response gene expression profile from nasal samples collected measured by RT-PCR

    Measurement of interferon response from samples collected using RT-PCR to detect expression of ISGs. ISGs measured include Irf7, Oas1a, Oasl2, Cxcl9, and CxcL10 as well as other corresponding interferons such as Ifna, ifnb, and ifnl

    From baseline up to Month 1

  • Change in RNA expression profile of ISGs using RNAseq assay

    In a subset of subjects in both arms, RNAseq will be performed to assess the presence and quantity of RNA on samples collected at Day 1 and Day 8. ISGs assessed include Irf7, Oas1a, Oasl2, Cxcl9, and CxcL10 as well as other corresponding interferons such as Ifna, ifnb, and ifnl

    Day 1and Day 8

  • Change in RNA expression profile of ISGs using single cell RNAseq assay

    In a subset of subjects in both arms, single cell RNAseq will be performed to assess the presence and quantity of RNA on single cells from samples collected at Day 1 and Day 8. ISGs assessed include Irf7, Oas1a, Oasl2, Cxcl9, and CxcL10 as well as other corresponding interferons such as Ifna, ifnb, and ifnl

    Day 1 and Day 8

Study Arms (2)

Neosporin

EXPERIMENTAL

Neosporin will be distributed by the Yale Investigational Pharmacy. Subjects are to use Neosporin twice a day for 7 days.

Drug: Neosporin

Vaseline or equivalent

PLACEBO COMPARATOR

Vaseline or equivalent will be distributed by the Yale Investigational Pharmacy. Subjects are to use Vaseline twice a day for 7 days.

Other: Vaseline

Interventions

Neosporin is neomycin, bacitracin and polymyxin B with formulation 3.5mg/400 units/5,000 units. The subject will self-apply a small amount (approximately 0.5 g) of the ointment topically into each nostril (intranasal) twice daily (morning and evening) for seven days. Subjects are to pinch the nose to spread the cream.

Neosporin

The subject will self-apply a small amount (approximately 0.5 g) of the ointment topically into each nostril (intranasal) twice daily (morning and evening) for seven days. Subjects are to pinch the nose to spread the cream.

Vaseline or equivalent

Eligibility Criteria

Age18 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Completion of written informed consent
  • Covid-negative within 48 hours of enrollment based on PCR or Antigen test. If subjects are found to be positive, the PI will recommend appropriate follow-ups.
  • In good general health as evidenced by medical history
  • Ability to take Nasal medication and be willing to adhere to the nasal agent regimen

You may not qualify if:

  • Participant with active nasal or respiratory symptoms.
  • Participant with active or chronic respiratory nasal or respiratory infections and or is currently on antibiotics
  • Participant who has been treated with oral or topical antibiotics with the past 14 days
  • Participant who is on intranasal or oral corticosteroids or systemic immunosuppression medication
  • Participant who has immunocompromised conditions such as rheumatological diseases, HIV, cancer on chemotherapy or biologic therapies.
  • Participant who is on any intranasally applied medications (prescription or over the counter) including nonmedical nasal products and the use of Netipot or other nasal flush products.
  • Participant with known allergic history to Neosporin (allergic history to neomycin or bacitracin or polymyxcin or pramoxine or the inactive ingredients that include cocoa butter, cottonseed oil, olive oil, sodium pyruvate, tocopheryl acetate and white petrolatum)
  • Participant with known allergies to aminoglycoside antibiotics (neomycin, tobramycin, gentamycin, others)
  • Participant with history of COVID-19 infection in the past 8 weeks.
  • Participant who is pregnant

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Yale University

New Haven, Connecticut, 06520, United States

Location

MeSH Terms

Conditions

COVID-19

Interventions

bacitracin zinc, neomycin sulfate, polymyxin B, drug combinationPetrolatum

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

HydrocarbonsOrganic Chemicals

Study Officials

  • Charles Dela Cruz, MD

    Yale University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Blinding will be achieved by masking and packaging the products in an identical fashion. Investigational product will be filled in empty Aluminum Ointment Tubes 15 g (Supplied via HealthCareLogistics, Item # 10201-01). The empty Aluminum Ointment Tubes are sterilized by gamma irradiation and have protective inner (epoxy phenolic) coating to prevent ointments from sticking to the sides and reacting with the aluminum. Each tube will be filled with approximately 15 g of the Neosporin ointment investigational product, or Vaseline Petroleum Jelly its matching placebo, and labeled in a blinded fashion. Patient or clinicians requesting unblinding will contact the principal investigator (PI).
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Run-in cohort to test optimal sampling and storage conditions: For 6 participants, the investigator will test 50:50 with Neosporin vs Placebo participant nasal sampling and shipping protocol to evaluate signal to noise of interferon-stimulated genes (ISG) measures. If needed, we will rerun the power calculations.
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 6, 2022

First Posted

July 8, 2022

Study Start

September 1, 2022

Primary Completion

September 22, 2023

Study Completion

September 22, 2023

Last Updated

October 3, 2023

Record last verified: 2023-10

Data Sharing

IPD Sharing
Will share

Locations