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> Record changed: 2026-10-13

# A Study to Evaluate the Efficacy and Safety of Ivermectin in COVID-19 Prevention

NCT05305560

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

Phase

Phase 2

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

Recruitment status

Completed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

Participants

400

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

Lead sponsor

MedinCell S.A

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

Start date

2022-03-25

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

Number of sites

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Title and summary

**Summary**

A multicenter, randomized, double-blind, placebo-controlled, study to evaluate the efficacy and safety of oral ivermectin tablets versus placebo for COVID-19 prophylaxis

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Acronym**

SAIVE

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Short title**

A Study to Evaluate the Efficacy and Safety of Ivermectin in COVID-19 Prevention

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Official title**

A Multicentre Randomised, Double-Blind, Placebo-controlled, Study to Evaluate the efficAcy and Safety of Oral IVErmectin Tablets in the Prevention of COVID-19

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Status and phase

**Control arm**

Placebo

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Registry reports results**

Yes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Listing at source**

Listed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Recruitment status**

Completed

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Phase**

Phase 2

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Study type**

Interventional

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Dates

**Completion date**

2022-10-13

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**First posted**

2022-03-31

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Registry last updated**

2024-12-31

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Primary completion date**

2022-09-15

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Start date**

2022-03-25

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Size and sites

**Actual participants**

400

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Participants**

400

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Participant count basis**

Actual

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Protocol amendments**

4

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Number of sites**

1

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Sponsor and oversight

**Data monitoring committee**

Yes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Registry sponsor category**

Industry

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Lead sponsor**

MedinCell S.A

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Source registry**

ClinicalTrials.gov

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Identifiers

**Registry ID**

NCT05305560

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**ClinicalTrials.gov ID**

NCT05305560

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

**Registry record**

Open registry record

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Study design

**Allocation**

Randomised

**Model**

Parallel groups

**Purpose**

Prevention

**Masking**

Double masking

**Masked roles**

Participants, Investigators

Sources for study design

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Outcomes

### Primary outcomes

1. COVID-19 Prophylaxis  
Timeframe: From Day 1 to Day 28  
Number of laboratory-confirmed COVID-19 infections in each group between baseline and Day 28

### Secondary outcomes

1. COVID-19 Symptoms Development  
Timeframe: From Day 1 to Day 28  
Number of symptomatic Participants according to the WHO COVID-18 scale
2. COVID-19 Prophylaxis Timeframe  
Timeframe: From Day 1 to Day 28  
Time to change from baseline in negative RT-PCR to positive RT-PCR
3. COVID-19 Hospitalisations  
Timeframe: From Day 1 to Day 56  
Proportion of COVID-19 related hospitalisations
4. COVID-19 Mortality  
Timeframe: From Day 1 to Day 56  
Proportion of COVID-19 related mortality
5. To Assess the Safety and Tolerability of IVM Given for a Period of 28 Days  
Timeframe: 56 days  
Descriptive comparison of AE rates and severity/seriousness between IVM and placebo

Sources for outcomes

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Eligibility

**Sex**

All

**Age groups**

Adults, Older adults

**Minimum age**

18 Years

**Maximum age**

65 Years

**Healthy volunteers**

No

### Inclusion criteria

1. Age between 18 and 65 years, inclusive.
2. Body weight >45 kg.
3. Body Mass Index >18.5.
4. Close contact with a person who has a PCR-confirmed SARS-CoV-2 infection within 5 days before screening.
5. Only one member in the same household will be enrolled.
6. Participants must be able to give informed consent and comply with the study's scheduled events/visits and study assessments.
7. SARS-CoV-2 positive index case must be able to give consent to enable collection of the documented positive PCR test.
8. Female participants of childbearing potential must use a highly effective method of contraception for the duration of the trial.

### Exclusion criteria

1. Pregnant or breast-feeding.
2. Participants who have been administered COVID-19 vaccine prior to the inclusion or have a planned vaccination during the duration of the study.
3. A positive COVID-19 result (PCR or antigen test) within 8 days of screening.
4. Presence of typical COVID-19 symptoms (fever >38°C, SpO2 below 93%, dyspnoea, difficulty breathing, chills, repeated shaking with chills, ageusia, anosmia, cough, myalgia, headache) in the past 48 hours prior to screening.
5. Hypersensitivity to any component of ivermectin.
6. Participants who have been administered ivermectin within 30 days prior to screening.
7. Participation in another interventional trial within the last 30 days or 5 half-lives of the IMP of the other trial, whichever comes first.
8. Participants with gastrointestinal erosions and ulcers (e.g. erosive esophagitis, stomach ulcers, ulcerative colitis etc.).
9. History of neurotoxicity with ivermectin or other para-glycoprotein (p-gp) substrates or inhibitors.
10. Current use of monoclonal antibodies for the treatment of COVID-19.

Sources for eligibility

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Sites

- Medical Center Medic Ltd.Sofia, Bulgaria

Sources for sites

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## References

### Other registry identifiers

- 2021-001938-19

Sources for references

Source: [clinicaltrials.gov](https://clinicaltrials.gov/study/NCT05305560)

## Related records

### Drugs (1)

- [Ivermectin](https://trialight.com/data/asset/ivermectin-92b3d34e-69c8-464b-98da-d0f165a74513.md)

### Collaborators (1)

- Violaine Desort-Henin, DVM

### Lead sponsors (1)

- [MedinCell S.A](https://trialight.com/data/company/medincell-s-a-caddf925-8056-4d48-83f7-5589bcf20bfc.md)

### Conditions (1)

- [COVID-19](https://trialight.com/data/condition/covid-19-13f0ebf3-c291-557d-bdef-93563d077103.md) Primary condition

---

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