Trial Outcomes & Findings for Safety and Immunogenicity of HIV DNA-C CN54ENV and Recombinant HIV CN54gp140 Vaccines in Healthy Volunteers (NCT NCT02589795)

NCT ID: NCT02589795

Last Updated: 2025-01-31

Results Overview

Number of participants experiencing a Grade 3 or above solicited local, systemic or laboratory adverse event, or any grade of adverse event leading to a clinical decision to discontinue immunizations, or any grade of unsolicited adverse event with onset within 7 days of immunization

Recruitment status

COMPLETED

Study phase

PHASE1

Target enrollment

28 participants

Primary outcome timeframe

From first dose until up to Week 22

Results posted on

2025-01-31

Participant Flow

Healthy volunteers were recruited

All enrolled participants received at least one vaccination.

Participant milestones

Participant milestones
Measure
Group 1: ID/EP + IM
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly without electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 2: ID + IM/EP
0.6 mg DNA-C CN54ENV, intradermally without electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 3: ID/EP + IM/EP
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Overall Study
STARTED
9
8
11
Overall Study
COMPLETED
8
8
8
Overall Study
NOT COMPLETED
1
0
3

Reasons for withdrawal

Reasons for withdrawal
Measure
Group 1: ID/EP + IM
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly without electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 2: ID + IM/EP
0.6 mg DNA-C CN54ENV, intradermally without electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 3: ID/EP + IM/EP
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Overall Study
Lost to Follow-up
1
0
0
Overall Study
Withdrawal by Subject
0
0
2
Overall Study
Protocol Violation
0
0
1

Baseline Characteristics

Safety and Immunogenicity of HIV DNA-C CN54ENV and Recombinant HIV CN54gp140 Vaccines in Healthy Volunteers

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Group 1: ID/EP + IM
n=8 Participants
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly without electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 2: ID + IM/EP
n=8 Participants
0.6 mg DNA-C CN54ENV, intradermally without electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 3: ID/EP + IM/EP
n=8 Participants
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Total
n=24 Participants
Total of all reporting groups
Age, Continuous
31 years
n=5 Participants
27 years
n=7 Participants
22 years
n=5 Participants
27 years
n=4 Participants
Sex: Female, Male
Female
2 Participants
n=5 Participants
2 Participants
n=7 Participants
2 Participants
n=5 Participants
6 Participants
n=4 Participants
Sex: Female, Male
Male
6 Participants
n=5 Participants
6 Participants
n=7 Participants
6 Participants
n=5 Participants
18 Participants
n=4 Participants
Race/Ethnicity, Customized
White British
6 Participants
n=5 Participants
5 Participants
n=7 Participants
6 Participants
n=5 Participants
17 Participants
n=4 Participants
Race/Ethnicity, Customized
Other White
1 Participants
n=5 Participants
0 Participants
n=7 Participants
2 Participants
n=5 Participants
3 Participants
n=4 Participants
Race/Ethnicity, Customized
Other
1 Participants
n=5 Participants
3 Participants
n=7 Participants
0 Participants
n=5 Participants
4 Participants
n=4 Participants
Region of Enrollment
United Kingdom
8 participants
n=5 Participants
8 participants
n=7 Participants
8 participants
n=5 Participants
24 participants
n=4 Participants
Body weight
82 kilograms
n=5 Participants
62 kilograms
n=7 Participants
73 kilograms
n=5 Participants
75 kilograms
n=4 Participants
Body Mass Index (BMI)
24 kilograms per square metre
n=5 Participants
21 kilograms per square metre
n=7 Participants
25 kilograms per square metre
n=5 Participants
24 kilograms per square metre
n=4 Participants

PRIMARY outcome

Timeframe: From first dose until up to Week 22

Population: All enrolled participants

Number of participants experiencing a Grade 3 or above solicited local, systemic or laboratory adverse event, or any grade of adverse event leading to a clinical decision to discontinue immunizations, or any grade of unsolicited adverse event with onset within 7 days of immunization

Outcome measures

Outcome measures
Measure
Group 1: ID/EP + IM
n=9 Participants
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly without electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 2: ID + IM/EP
n=8 Participants
0.6 mg DNA-C CN54ENV, intradermally without electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 3: ID/EP + IM/EP
n=11 Participants
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Primary Safety Endpoint
7 Participants
8 Participants
10 Participants

PRIMARY outcome

Timeframe: Week 22

Population: All enrolled participants

Magnitude of antigen-specific systemic IgG antibody binding responses (ng/mL) to CN54gp140

Outcome measures

Outcome measures
Measure
Group 1: ID/EP + IM
n=9 Participants
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly without electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 2: ID + IM/EP
n=8 Participants
0.6 mg DNA-C CN54ENV, intradermally without electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 3: ID/EP + IM/EP
n=11 Participants
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Primary Immunogenicity
13934 nanograms per millilitre
Interval 9884.0 to 38050.0
11292 nanograms per millilitre
Interval 9608.0 to 15568.0
31418 nanograms per millilitre
Interval 6304.0 to 128259.0

SECONDARY outcome

Timeframe: 7 days after injection

Population: Population does not include replacement participants

Number of participants experiencing an adverse event local to the injection sites, starting within 7 days of injection

Outcome measures

Outcome measures
Measure
Group 1: ID/EP + IM
n=8 Participants
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly without electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 2: ID + IM/EP
n=8 Participants
0.6 mg DNA-C CN54ENV, intradermally without electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 3: ID/EP + IM/EP
n=8 Participants
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Adverse Event Local to the Injection Sites, Starting Within 7 Days of Injection
8 Participants
8 Participants
8 Participants

Adverse Events

Group 1: ID/EP + IM

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

Group 2: ID + IM/EP

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

Group 3: ID/EP + IM/EP

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

Serious adverse events

Serious adverse events
Measure
Group 1: ID/EP + IM
n=9 participants at risk
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly without electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 2: ID + IM/EP
n=8 participants at risk
0.6 mg DNA-C CN54ENV, intradermally without electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 3: ID/EP + IM/EP
n=11 participants at risk
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Injury, poisoning and procedural complications
Road traffic accident
0.00%
0/9 • Week 0 to Week 22
0.00%
0/8 • Week 0 to Week 22
9.1%
1/11 • Number of events 1 • Week 0 to Week 22

Other adverse events

Other adverse events
Measure
Group 1: ID/EP + IM
n=9 participants at risk
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly without electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 2: ID + IM/EP
n=8 participants at risk
0.6 mg DNA-C CN54ENV, intradermally without electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Group 3: ID/EP + IM/EP
n=11 participants at risk
0.6 mg DNA-C CN54ENV, intradermally with electroporation, at Weeks 0, 4 and 8. 2 mg DNA-C CN54ENV, intramuscularly with electroporation, at Weeks 0, 4 and 8. 50 µg CN54gp140, intradermally without electroporation, at Week 20.
Musculoskeletal and connective tissue disorders
Musculoskeletal pain
0.00%
0/9 • Week 0 to Week 22
0.00%
0/8 • Week 0 to Week 22
9.1%
1/11 • Number of events 1 • Week 0 to Week 22
General disorders
Fatigue
0.00%
0/9 • Week 0 to Week 22
0.00%
0/8 • Week 0 to Week 22
9.1%
1/11 • Number of events 1 • Week 0 to Week 22

Additional Information

Research Integrity Officer

Imperial College London

Phone: 020 7594 1872

Results disclosure agreements

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