Trial Outcomes & Findings for Live Enterovirus Vaccine and Type 1 Diabetes (NCT NCT02961595)

NCT ID: NCT02961595

Last Updated: 2024-08-13

Results Overview

Appearance of multiple type 1 diabetes associated auto-antibodies (2-4 of the measured four auto-antibodies ICA, IAA, GADA, IA-2A)

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

315 participants

Primary outcome timeframe

Through study completion, an average of 11 years

Results posted on

2024-08-13

Participant Flow

Participant milestones

Participant milestones
Measure
Inactivated Polio Vaccine (IPV)
The control group received inactivated poliovirus vaccine (IPV) at the age of 6, 12 months and 2, 6 and 9-12 years according to the national immunization protocol in Finland at that time.
Oral Polio Vaccine (OPV)
Intervention group were given doses of oral polio vaccine OPV (Polio Sabin®) at the age of 2, 3, 6 and 12 months. After the age of 12 months they were recommend to continue according to the national immunisation programme with IPV at the age of 2, 6 and 9-12 years. Oral Polio Vaccine (OPV): Serial Oral Polio Vaccine (OPV) was given to intervention group instead of inactivated poliovirus vaccine (IPV).
Overall Study
STARTED
251
64
Overall Study
COMPLETED
251
64
Overall Study
NOT COMPLETED
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Race and Ethnicity were not collected from any participant.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Inactivated Polio Vaccine (IPV)
n=251 Participants
The control group received inactivated poliovirus vaccine (IPV) at the age of 6, 12 months and 2, 6 and 9-12 years according to the national immunization protocol in Finland at that time.
Oral Polio Vaccine (OPV)
n=64 Participants
Intervention group were given doses of oral polio vaccine OPV (Polio Sabin®) at the age of 2, 3, 6 and 12 months. After the age of 12 months they were recommend to continue according to the national immunisation programme with IPV at the age of 2, 6 and 9-12 years. Oral Polio Vaccine (OPV): Serial Oral Polio Vaccine (OPV) was given to intervention group instead of inactivated poliovirus vaccine (IPV).
Total
n=315 Participants
Total of all reporting groups
Age, Categorical
<=18 years
251 Participants
n=251 Participants
64 Participants
n=64 Participants
315 Participants
n=315 Participants
Age, Categorical
Between 18 and 65 years
0 Participants
n=251 Participants
0 Participants
n=64 Participants
0 Participants
n=315 Participants
Age, Categorical
>=65 years
0 Participants
n=251 Participants
0 Participants
n=64 Participants
0 Participants
n=315 Participants
Sex: Female, Male
Female
128 Participants
n=251 Participants
30 Participants
n=64 Participants
158 Participants
n=315 Participants
Sex: Female, Male
Male
123 Participants
n=251 Participants
34 Participants
n=64 Participants
157 Participants
n=315 Participants
Race and Ethnicity Not Collected
0 Participants
Race and Ethnicity were not collected from any participant.
Region of Enrollment
Finland
251 participants
n=251 Participants
64 participants
n=64 Participants
315 participants
n=315 Participants

PRIMARY outcome

Timeframe: Through study completion, an average of 11 years

Appearance of multiple type 1 diabetes associated auto-antibodies (2-4 of the measured four auto-antibodies ICA, IAA, GADA, IA-2A)

Outcome measures

Outcome measures
Measure
Inactivated Polio Vaccine (IPV)
n=251 Participants
The control group received inactivated poliovirus vaccine (IPV) at the age of 6, 12 months and 2, 6 and 9-12 years according to the national immunization protocol in Finland at that time.
Oral Polio Vaccine (OPV)
n=64 Participants
Intervention group were given doses of oral polio vaccine OPV (Polio Sabin®) at the age of 2, 3, 6 and 12 months. After the age of 12 months they were recommend to continue according to the national immunisation programme with IPV at the age of 2, 6 and 9-12 years. Oral Polio Vaccine (OPV): Serial Oral Polio Vaccine (OPV) was given to intervention group instead of inactivated poliovirus vaccine (IPV).
Number of Participants With the Appearance of Type 1 Diabetes Associated Auto-antibodies in Serum
17 Participants
2 Participants

SECONDARY outcome

Timeframe: Up to 24 months of age

Population: Overall 1488 stools samples were collected and analysed from 3 to 24 months in both IPV and OPV groups

Percentage of enterovirus RNA positive stool samples during the follow-up of 24 months in IPV and OPV vaccinated children

Outcome measures

Outcome measures
Measure
Inactivated Polio Vaccine (IPV)
n=744 stool samples
The control group received inactivated poliovirus vaccine (IPV) at the age of 6, 12 months and 2, 6 and 9-12 years according to the national immunization protocol in Finland at that time.
Oral Polio Vaccine (OPV)
n=744 stool samples
Intervention group were given doses of oral polio vaccine OPV (Polio Sabin®) at the age of 2, 3, 6 and 12 months. After the age of 12 months they were recommend to continue according to the national immunisation programme with IPV at the age of 2, 6 and 9-12 years. Oral Polio Vaccine (OPV): Serial Oral Polio Vaccine (OPV) was given to intervention group instead of inactivated poliovirus vaccine (IPV).
Number of Enterovirus RNA Positive Stool Samples During the Follow-up of 24 Months
89 stool samples
221 stool samples

Adverse Events

Inactivated Polio Vaccine (IPV)

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

Oral Polio Vaccine (OPV)

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

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Hanna Viskari

University of Tampere

Results disclosure agreements

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