Trial Outcomes & Findings for Immune Response in Adults to PrEP and Simulated Booster PEP With a New CPRV (NCT NCT01603875)

NCT ID: NCT01603875

Last Updated: 2014-02-25

Results Overview

Blood samples will be drawn on day 0(After the first injection). The samples will be centrifuged and kept as serum under - 20 degree Celsius. The serum will be test by Rapid Florescent Focus Inhibition Test. Rabies neutralizing antibody levels will be determined and expressed in international units per mL. Percentage of Subjects achieving seroconversion (defined as RNab ≥ 0.5 IU/ mL) are determine at each sampling time.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

105 participants

Primary outcome timeframe

on day 0

Results posted on

2014-02-25

Participant Flow

We recruited 66 subjects from Faculty of Veterinarian, Chulalongkorn University. The recruitment held between June 25, 2012 and July 2, 2012. Others 39 subjects was recruited from Faculty of Veterinarian, Mahanakorn University of Technology.

Participant milestones

Participant milestones
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Overall Study
STARTED
35
35
35
Overall Study
COMPLETED
28
27
26
Overall Study
NOT COMPLETED
7
8
9

Reasons for withdrawal

Reasons for withdrawal
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Overall Study
Preexisting rabies antibody
3
4
3
Overall Study
Lost to Follow-up
4
3
6
Overall Study
Protocol Violation
0
1
0

Baseline Characteristics

Immune Response in Adults to PrEP and Simulated Booster PEP With a New CPRV

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
n=28 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
n=27 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
n=26 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Total
n=81 Participants
Total of all reporting groups
Age, Continuous
18.96 years
STANDARD_DEVIATION 1.138 • n=99 Participants
20.04 years
STANDARD_DEVIATION 5.633 • n=107 Participants
18.92 years
STANDARD_DEVIATION 0.744 • n=206 Participants
19.31 years
STANDARD_DEVIATION 3.345 • n=7 Participants
Sex: Female, Male
Female
22 Participants
n=99 Participants
18 Participants
n=107 Participants
19 Participants
n=206 Participants
59 Participants
n=7 Participants
Sex: Female, Male
Male
6 Participants
n=99 Participants
9 Participants
n=107 Participants
7 Participants
n=206 Participants
22 Participants
n=7 Participants
Region of Enrollment
Thailand
28 participants
n=99 Participants
27 participants
n=107 Participants
26 participants
n=206 Participants
81 participants
n=7 Participants

PRIMARY outcome

Timeframe: on day 0

Blood samples will be drawn on day 0(After the first injection). The samples will be centrifuged and kept as serum under - 20 degree Celsius. The serum will be test by Rapid Florescent Focus Inhibition Test. Rabies neutralizing antibody levels will be determined and expressed in international units per mL. Percentage of Subjects achieving seroconversion (defined as RNab ≥ 0.5 IU/ mL) are determine at each sampling time.

Outcome measures

Outcome measures
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
n=31 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
n=31 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
n=32 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Rabies Neutralizing Antibodies Determine by Rapid Fluorescent Focus Inhibition Test (RFFIT)
0 International unit per ml
Interval 0.0 to 0.0
0 International unit per ml
Interval 0.0 to 0.0
0 International unit per ml
Interval 0.0 to 0.0

PRIMARY outcome

Timeframe: on day 28

Blood samples will be drawn on day 28(After the first injection). The samples will be centrifuged and kept as serum under - 20 degree Celsius. The serum will be test by Rapid Florescent Focus Inhibition Test. Rabies neutralizing antibody levels will be determined and expressed in international units per mL. Percentage of Subjects achieving seroconversion (defined as RNab ≥ 0.5 IU/ mL) are determine at each sampling time.

Outcome measures

Outcome measures
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
n=31 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
n=31 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
n=32 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Rabies Neutralizing Antibodies Determine by Rapid Fluorescent Focus Inhibition Test (RFFIT)
2.67 International unit per ml
Interval 0.57 to 11.81
4.23 International unit per ml
Interval 0.46 to 19.03
1.83 International unit per ml
Interval 0.16 to 17.45

PRIMARY outcome

Timeframe: on day 42

Blood samples will be drawn on day 42(After the first injection). The samples will be centrifuged and kept as serum under - 20 degree Celsius. The serum will be test by Rapid Florescent Focus Inhibition Test. Rabies neutralizing antibody levels will be determined and expressed in international units per mL. Percentage of Subjects achieving seroconversion (defined as RNab ≥ 0.5 IU/ mL) are determine at each sampling time.

Outcome measures

Outcome measures
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
n=31 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
n=31 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
n=32 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Rabies Neutralizing Antibodies Determine by Rapid Fluorescent Focus Inhibition Test (RFFIT)
11.49 International unit per ml
Interval 2.38 to 51.54
14.23 International unit per ml
Interval 1.83 to 64.0
5.02 International unit per ml
Interval 0.59 to 26.91

PRIMARY outcome

Timeframe: on day 360

Blood samples will be drawn on day 360(After the first injection). The samples will be centrifuged and kept as serum under - 20 degree Celsius. The serum will be test by Rapid Florescent Focus Inhibition Test. Rabies neutralizing antibody levels will be determined and expressed in international units per mL. Percentage of Subjects achieving seroconversion (defined as RNab ≥ 0.5 IU/ mL) are determine at each sampling time.

Outcome measures

Outcome measures
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
n=28 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
n=27 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
n=26 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Rabies Neutralizing Antibodies Determine by Rapid Fluorescent Focus Inhibition Test (RFFIT)
0.55 International unit per ml
Interval 0.16 to 1.83
0.64 International unit per ml
Interval 0.13 to 3.67
0.28 International unit per ml
Interval 0.07 to 1.19

PRIMARY outcome

Timeframe: on day 374

Blood samples will be drawn on day 374(After the first injection). The samples will be centrifuged and kept as serum under - 20 degree Celsius. The serum will be test by Rapid Florescent Focus Inhibition Test. Rabies neutralizing antibody levels will be determined and expressed in international units per mL. Percentage of Subjects achieving seroconversion (defined as RNab ≥ 0.5 IU/ mL) are determine at each sampling time.

Outcome measures

Outcome measures
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
n=28 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
n=27 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
n=26 Participants
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Rabies Neutralizing Antibodies Determine by Rapid Fluorescent Focus Inhibition Test (RFFIT)
29.16 International unit per ml
Interval 7.66 to 112.4
45.99 International unit per ml
Interval 4.36 to 693.38
11.93 International unit per ml
Interval 3.22 to 66.83

SECONDARY outcome

Timeframe: up to 7 days after each injection

There are five injections, on day 0, 7, 28, 360 and 363. The side effects will be record in number and percentage.

Outcome measures

Outcome data not reported

Adverse Events

PrEP and Simulated PEP With PVRV by Intramuscular Route

Serious events: 0 serious events
Other events: 35 other events
Deaths: 0 deaths

PrEP and Simulated PEP With New CPRV by Intramuscular Route

Serious events: 0 serious events
Other events: 35 other events
Deaths: 0 deaths

PrEP and Simulated PEP With New CPRV by Intradermal Route

Serious events: 0 serious events
Other events: 35 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Other adverse events
Measure
PrEP and Simulated PEP With PVRV by Intramuscular Route
n=35 participants at risk
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intramuscular Route
n=35 participants at risk
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
PrEP and Simulated PEP With New CPRV by Intradermal Route
n=35 participants at risk
New Chromatographically Purified Vero-cell Rabies vaccine(new CPRV).: new CPRV 0.1 ml intradermal route and 0.5 ml intramuscular route are the experimental intervention
Injury, poisoning and procedural complications
pain
80.0%
28/35 • Number of events 149 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
77.1%
27/35 • Number of events 147 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
42.9%
15/35 • Number of events 148 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
Skin and subcutaneous tissue disorders
pruritus
14.3%
5/35 • Number of events 7 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
17.1%
6/35 • Number of events 8 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
45.7%
16/35 • Number of events 38 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
Skin and subcutaneous tissue disorders
erythema
11.4%
4/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
2.9%
1/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
74.3%
26/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
Skin and subcutaneous tissue disorders
induration
5.7%
2/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
2.9%
1/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
74.3%
26/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
General disorders
fever
22.9%
8/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
5.7%
2/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.
11.4%
4/35 • 42 days since the first dose was administered. One year later, 14 days since the first booster dose was administered.
Pain, pruritus, erythema, induration, fever, urticaria, arthralgia, myalgia, dizziness, headache, nausea, vomiting, lymphadenopathy were recorded.

Additional Information

Dr. Terapong Tantawichien

Queen Saovabha Memorial Institute

Phone: 66225201614

Results disclosure agreements

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