Trial Outcomes & Findings for Vaccination for Recovered Inpatients With COVID-19 (VATICO) (NCT NCT04969250)

NCT ID: NCT04969250

Last Updated: 2024-03-27

Results Overview

Change in antibody level as measured by ratio of follow-up to baseline level

Recruitment status

COMPLETED

Study phase

PHASE4

Target enrollment

66 participants

Primary outcome timeframe

Pre-vaccination baseline and 48 weeks post-vaccination

Results posted on

2024-03-27

Participant Flow

The number of participants consented was not collected, so these numbers are the number of participants randomized.

Participant milestones

Participant milestones
Measure
Group I1
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Overall Study
STARTED
16
18
16
16
Overall Study
COMPLETED
16
15
13
8
Overall Study
NOT COMPLETED
0
3
3
8

Reasons for withdrawal

Reasons for withdrawal
Measure
Group I1
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Overall Study
Protocol Violation
0
2
3
8
Overall Study
Withdrawal by Subject
0
1
0
0

Baseline Characteristics

Vaccination for Recovered Inpatients With COVID-19 (VATICO)

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group I1
n=16 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=18 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=16 Participants
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=16 Participants
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Total
n=66 Participants
Total of all reporting groups
Race/Ethnicity, Customized
White
5 Participants
n=5 Participants
5 Participants
n=7 Participants
5 Participants
n=5 Participants
4 Participants
n=4 Participants
19 Participants
n=21 Participants
Age, Categorical
<=18 years
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Age, Categorical
Between 18 and 65 years
12 Participants
n=5 Participants
15 Participants
n=7 Participants
13 Participants
n=5 Participants
15 Participants
n=4 Participants
55 Participants
n=21 Participants
Age, Categorical
>=65 years
4 Participants
n=5 Participants
3 Participants
n=7 Participants
3 Participants
n=5 Participants
1 Participants
n=4 Participants
11 Participants
n=21 Participants
Sex: Female, Male
Female
8 Participants
n=5 Participants
6 Participants
n=7 Participants
6 Participants
n=5 Participants
8 Participants
n=4 Participants
28 Participants
n=21 Participants
Sex: Female, Male
Male
8 Participants
n=5 Participants
12 Participants
n=7 Participants
10 Participants
n=5 Participants
8 Participants
n=4 Participants
38 Participants
n=21 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants
n=5 Participants
4 Participants
n=7 Participants
3 Participants
n=5 Participants
3 Participants
n=4 Participants
13 Participants
n=21 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
13 Participants
n=5 Participants
14 Participants
n=7 Participants
13 Participants
n=5 Participants
13 Participants
n=4 Participants
53 Participants
n=21 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native American Indian or Alaska Native
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race/Ethnicity, Customized
Asian
0 Participants
n=5 Participants
0 Participants
n=7 Participants
1 Participants
n=5 Participants
0 Participants
n=4 Participants
1 Participants
n=21 Participants
Race/Ethnicity, Customized
Native Hawaiian or Pacific Islander
0 Participants
n=5 Participants
0 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
0 Participants
n=21 Participants
Race/Ethnicity, Customized
Black or African American
8 Participants
n=5 Participants
8 Participants
n=7 Participants
7 Participants
n=5 Participants
9 Participants
n=4 Participants
32 Participants
n=21 Participants
Race/Ethnicity, Customized
More than one race
0 Participants
n=5 Participants
1 Participants
n=7 Participants
2 Participants
n=5 Participants
1 Participants
n=4 Participants
4 Participants
n=21 Participants
Race/Ethnicity, Customized
Other
0 Participants
n=5 Participants
1 Participants
n=7 Participants
0 Participants
n=5 Participants
0 Participants
n=4 Participants
1 Participants
n=21 Participants
Race/Ethnicity, Customized
Only ethnicity reported
3 Participants
n=5 Participants
3 Participants
n=7 Participants
1 Participants
n=5 Participants
2 Participants
n=4 Participants
9 Participants
n=21 Participants

PRIMARY outcome

Timeframe: Pre-vaccination baseline and 48 weeks post-vaccination

Population: Patient counts for this analysis are less than the total number of patients followed because some patients with follow-up visits did not have blood drawn.

Change in antibody level as measured by ratio of follow-up to baseline level

Outcome measures

Outcome measures
Measure
Group I1
n=12 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=15 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=13 Participants
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=11 Participants
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Ratio of 48-Week to Baseline Neutralizing Antibody (NAb) Levels
0.3722 ratio of geometric mean responses
Interval -0.0566 to 0.8012
0.5883 ratio of geometric mean responses
Interval 0.1366 to 1.0399
0.2088 ratio of geometric mean responses
Interval -0.1758 to 0.5935
0.3073 ratio of geometric mean responses
Interval -0.1479 to 0.7624

SECONDARY outcome

Timeframe: Pre-vaccination baseline and 12 weeks post-vaccination

Population: Patient counts for this analysis are less than the total number of patients followed because some patients with follow-up visits did not have blood drawn.

Change in antibody level as measured by ratio of follow-up to baseline level

Outcome measures

Outcome measures
Measure
Group I1
n=13 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=15 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=14 Participants
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=13 Participants
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Ratio of 12-Week to Baseline Neutralizing Antibody (NAb) Levels
0.4827 Ratio of geometric mean responses
Interval 0.0641 to 0.9014
0.9206 Ratio of geometric mean responses
Interval 0.4938 to 1.3474
0.2418 Ratio of geometric mean responses
Interval -0.1329 to 0.6165
0.6533 Ratio of geometric mean responses
Interval 0.1554 to 1.1513

SECONDARY outcome

Timeframe: Pre-vaccination baseline and 24 weeks post-vaccination

Population: Patient counts for this analysis are less than the total number of patients followed because some patients with follow-up visits did not have blood drawn.

Change in antibody level as measured by ratio of follow-up to baseline level

Outcome measures

Outcome measures
Measure
Group I1
n=14 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=16 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=14 Participants
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=12 Participants
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Ratio of 24-Week to Baseline Neutralizing Antibody (NAb) Levels
0.3002 Ratio of geometric mean responses
Interval -0.0453 to 0.6458
0.7747 Ratio of geometric mean responses
Interval 0.4187 to 1.1306
0.2032 Ratio of geometric mean responses
Interval -0.1265 to 0.5328
0.3397 Ratio of geometric mean responses
Interval -0.0498 to 0.7292

SECONDARY outcome

Timeframe: Through Week 24 after enrollment

Population: Participant who withdrew consent was not included in analysis. Used Fisher's exact test rather than Chi-squared due to small N.

Count of Deaths

Outcome measures

Outcome measures
Measure
Group I1
n=16 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=17 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=16 Participants
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=16 Participants
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Number of Deaths
1 Participants
0 Participants
0 Participants
0 Participants

SECONDARY outcome

Timeframe: Through Week 24

Population: Participant who withdrew consent was not included in analysis. Used Fisher's exact test rather than Chi-squared due to small N.

Count of SAEs

Outcome measures

Outcome measures
Measure
Group I1
n=16 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=17 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=16 Participants
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=16 Participants
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Number of Serious Adverse Events (SAEs)
2 SAEs
0 SAEs
0 SAEs
1 SAEs

SECONDARY outcome

Timeframe: Second vaccine doses were due at 4 and 16 weeks after randomization in Arm 2 and 4, respectively

Population: Participant who withdrew consent was not included in analysis. Used Fisher's exact test rather than Chi-squared due to small N.

Number of participants assigned a 2nd vaccine dose who did not receive it for any reason

Outcome measures

Outcome measures
Measure
Group I1
n=17 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=16 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Number of Patients Non-adherent to 2nd Dose
1 Participants
5 Participants

SECONDARY outcome

Timeframe: Vaccine doses were due through 16-weeks post-randomization; participants were followed for vaccination status through 48 weeks post-randomization

Population: Participant who withdrew consent was not included in analysis. Used Fisher's exact test rather than Chi-squared due to small N.

Number of participants who received more or less vaccine than assigned, or who received vaccines at different time points than assigned

Outcome measures

Outcome measures
Measure
Group I1
n=16 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=17 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=16 Participants
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=16 Participants
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Number of Patients Non-adherent to Assigned Treatment Strategy
1 Participants
3 Participants
5 Participants
8 Participants

SECONDARY outcome

Timeframe: Pre-vaccination baseline and 48 weeks post-vaccination

Population: Patient counts for this analysis are less than the total number of patients followed because some patients with follow-up visits did not have blood drawn.

Percentage of participants with \>=4-fold change in NAb from baseline to 48 weeks

Outcome measures

Outcome measures
Measure
Group I1
n=12 Participants
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=15 Participants
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=13 Participants
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=11 Participants
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Percent of Patients With >=4-fold Difference in NAb
41.70 percentage of participants
53.30 percentage of participants
30.80 percentage of participants
27.30 percentage of participants

Adverse Events

Group I1

Serious events: 1 serious events
Other events: 0 other events
Deaths: 1 deaths

Group I2

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Group D1

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Group D2

Serious events: 1 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Group I1
n=16 participants at risk
Immediate, one dose. Vaccination at study entry Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group I2
n=17 participants at risk
Immediate, two doses. Vaccination at study entry and Week 4 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D1
n=16 participants at risk
Deferred, one dose. Vaccination at Week 12 only Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
Group D2
n=16 participants at risk
Deferred, two doses. Vaccination at Week 12 and Week 16 Moderna mRNA-1273 COVID-19 vaccine: 100 µg intramuscular injection Pfizer BNT162b2 COVID-19 vaccine: 30 µg intramuscular injection
General disorders
Acute chest pain
6.2%
1/16 • Number of events 1 • 48 weeks
Participant who withdrew consent was not included in analysis.
0.00%
0/17 • 48 weeks
Participant who withdrew consent was not included in analysis.
0.00%
0/16 • 48 weeks
Participant who withdrew consent was not included in analysis.
0.00%
0/16 • 48 weeks
Participant who withdrew consent was not included in analysis.
Blood and lymphatic system disorders
Aggravation of bicytopenia
6.2%
1/16 • Number of events 1 • 48 weeks
Participant who withdrew consent was not included in analysis.
0.00%
0/17 • 48 weeks
Participant who withdrew consent was not included in analysis.
0.00%
0/16 • 48 weeks
Participant who withdrew consent was not included in analysis.
0.00%
0/16 • 48 weeks
Participant who withdrew consent was not included in analysis.
Infections and infestations
Recurrence of COVID-19 infection
0.00%
0/16 • 48 weeks
Participant who withdrew consent was not included in analysis.
0.00%
0/17 • 48 weeks
Participant who withdrew consent was not included in analysis.
0.00%
0/16 • 48 weeks
Participant who withdrew consent was not included in analysis.
6.2%
1/16 • Number of events 1 • 48 weeks
Participant who withdrew consent was not included in analysis.

Other adverse events

Adverse event data not reported

Additional Information

Melissa Skeans, Statistician/Protocol Manager

University of Minnesota

Phone: 612-626-9011

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place