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Safety and Efficacy of Intranasal Administration of Niclosamide (UNI91103) in Adults With Asymptomatic or Mild COVID-19

A Randomized Placebo-controlled Phase 2 Study to Assess the Safety and Efficacy of UNI91103 Intranasal Administration in Adults With Asymptomatic or Mildly Symptomatic COVID-19

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04932915
Acronym
PREVENT
Enrollment
4
Registered
2021-06-21
Start date
2021-09-03
Completion date
2022-01-10
Last updated
2022-02-21

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

Conditions

Covid19

Brief summary

The purpose of this study is to assess the safety and efficacy of UNI91103 intranasal spray for treatment of coronavirus disease 2019 (COVID-19) in asymptomatic or mildly symptomatic adults.

Interventions

Niclosamide is a broad spectrum, host targeting antiviral that inhibits viral replication (by neutralizing endosomal pH) and increases viral clearance (by increasing the autophagic flux). The niclosamide solution is administered directly to the nasal cavity via a nasal spray.

DRUGPlacebo

The placebo formulation contains purified water, sodium chloride as common isotonizing agent and the FAO/WHO approved colorant FD&C Red 40 to match the red-orange colour of the active solution. The solution is administered directly to the nasal cavity via a nasal spray.

Sponsors

UNION therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
45 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Subject is male or female aged ≥45 and \<80 years * Subject is tested to confirm infection with SARS-CoV-2 on a sample taken within 3 days before randomization * Subject is either without symptoms or has 1 or more of the following symptoms: Stuffy or runny nose, Sore throat, Loss of taste, Loss of smell, Headache. None of the symptoms should have been present \>5 days.

Exclusion criteria

* Subject has an underlying condition that may interfere with intranasal administration of the IMP (e.g., chronic ulcers in the nose). * Subject has symptoms suggesting engagement of the lower respiratory tract or a systemic engagement * Subject has an active or acute infection other than SARS-CoV-2 * Subject has another member of the same household recruited to this study

Design outcomes

Primary

MeasureTime frameDescription
Proportion of subjects with worsened symptoms any time from Day 3 to Day 10 compared with baselineDay 3 to Day 10Worsening is assessed by the Food and Drug Administration (FDA) COVID-19 Symptom Questionnaire, assessing severity of symptoms over the past 24 hour period.

Secondary

MeasureTime frameDescription
Proportion of subjects reporting the following number of symptoms with worst intensity/severe grade: ≥ 1 symptom, ≥ 2 symptoms, ≥ 3 symptoms, etc.Any time pointAssessed by the FDA COVID-19 symptom questionnaire looking at the individual symptoms
Proportion of subjects with worsened symptoms at Day 15 compared with baseline.Day 15Worsening is assessed by the FDA COVID-19 Symptom Questionnaire, which is a self reported questionnaire assessing severity of symptoms over the past 24 hour period.
Change from baseline in each single symptom scoreDays 10, 15 and 30Assessed by the FDA COVID-19 symptom questionnaire looking at the individual symptoms
Proportion of subjects with worst intensity/grade up to Day 10 and up to Day 15 in any single symptoms in the 3 domains of the FDA COVID-19 questionnaireDay 10 and up to Day 15Assessed by the FDA COVID-19 symptom questionnaire divided into 3 domains - Items 1 to 10, items 11 to 12 and items 13 to 14
Proportion of subjects requiring visits to urgent care (UC) or emergency department (ED) facilities, or hospitalization because of signs or symptoms of COVID-19Day 10, 15 and 30Number of visits to urgent care (UC) or emergency department (ED) facilities, or hospitalization is assessed by a self developed questionnaire
Proportion of subjects admitted to intensive care units (ICU) and/or diedAt screening, Day 1, and every other day through Day 10, and again at Day 15 and Day 30Assessed by WHO 11-point Ordinal Scale
Change from baseline in SARS-CoV-2 viral load at Day 5 and Day 10Day 5 and Day 10Assessed by quantitative reverse transcription polymerase chain reaction (qRT-PCR)
Proportion of subjects who are asymptomatic on Day 10Day 10Assessed by the FDA COVID-19 symptom questionnaire

Countries

Germany

Outcome results

None listed

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