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GLS-1200 Topical Nasal Spray to Prevent SARS-CoV-2 Infection (COVID-19)

Efficacy, Safety, and Tolerability of GLS-1200 Topical Nasal Spray in the Prevention of Incident Confirmed, Symptomatic SARS-CoV-2 Infection

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04408183
Enrollment
184
Registered
2020-05-29
Start date
2020-06-10
Completion date
2023-01-10
Last updated
2025-07-31

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

Conditions

Infection, SARS-CoV 2

Keywords

COVID-19

Brief summary

This clinical trial will evaluate the safety, tolerability and effectiveness of topical GLS-1200 nasal spray to reduce the incidence of confirmed, symptomatic SARS-CoV-2 infection.

Detailed description

This Phase II randomized, placebo-controlled, double-blind study will assess whether topical GLS-1200 applied via nasal spray atomizer is well-tolerated and can reduce the incidence of confirmed SARS-CoV-2 infection. Subjects will be randomized to either the GLS-1200 or placebo group in a 2:1 ratio with a target enrollment of 225 subjects. Subjects will self-administer study drug three times daily for 4 weeks.

Interventions

GLS-1200 is given as a nasal spray using an atomizer

DRUGPlacebo

Placebo is given as a nasal spray using an atomizer

Sponsors

GeneOne Life Science, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Age 18 or older * Able to provide informed consent * Able and willing to comply with study procedures * Able and willing to utilize an approved form of pregnancy prevention for women of child bearing potential through to the end of treatment

Exclusion criteria

* Know allergy to quinine, quinidine, or mefloquine * Confirmed prior positive test for SARS-CoV-2 * Treatment within the past 2 weeks with chloroquine, hydroxychloroquine, or remdesivir * Pregnancy or documentation of pregnancy by pre-treatment urine test or breast feeding or plans to become pregnant during the course of the study

Design outcomes

Primary

MeasureTime frame
Number Serious Adverse Events as Assessed by CTCAE v5.0Through 4 weeks of treatment
Incidence of SARS-CoV-2 Infection, Confirmed by PCR Relative to Treatment GroupThrough 4 weeks of treatment

Countries

United States

Participant flow

Participants by arm

ArmCount
GLS-1200
1 mL of GLS-1200 per nostril, TID GLS-1200: GLS-1200 is given as a nasal spray using an atomizer
123
0.9 %Saline
1 mL of 0.9% Saline per nostril, TID Placebo: Placebo is given as a nasal spray using an atomizer
61
Total184

Baseline characteristics

CharacteristicGLS-12000.9 %SalineTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
14 Participants3 Participants17 Participants
Age, Categorical
Between 18 and 65 years
109 Participants58 Participants167 Participants
Age, Continuous45.1 years
STANDARD_DEVIATION 13.81
41.3 years
STANDARD_DEVIATION 12.99
43.9 years
STANDARD_DEVIATION 13.63
Ethnicity (NIH/OMB)
Hispanic or Latino
5 Participants3 Participants8 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
118 Participants58 Participants176 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
5 Participants4 Participants9 Participants
Race (NIH/OMB)
Black or African American
1 Participants5 Participants6 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
38 Participants19 Participants57 Participants
Race (NIH/OMB)
White
79 Participants33 Participants112 Participants
Region of Enrollment
United States
123 participants61 participants184 participants
Sex: Female, Male
Female
81 Participants40 Participants121 Participants
Sex: Female, Male
Male
42 Participants21 Participants63 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 1230 / 61
other
Total, other adverse events
41 / 12321 / 61
serious
Total, serious adverse events
0 / 1230 / 61

Outcome results

Primary

Incidence of SARS-CoV-2 Infection, Confirmed by PCR Relative to Treatment Group

Time frame: Through 4 weeks of treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
GLS-1200Incidence of SARS-CoV-2 Infection, Confirmed by PCR Relative to Treatment Group0 Participants
0.9 %SalineIncidence of SARS-CoV-2 Infection, Confirmed by PCR Relative to Treatment Group0 Participants
Primary

Number Serious Adverse Events as Assessed by CTCAE v5.0

Time frame: Through 4 weeks of treatment

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
GLS-1200Number Serious Adverse Events as Assessed by CTCAE v5.00 Participants
0.9 %SalineNumber Serious Adverse Events as Assessed by CTCAE v5.00 Participants

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