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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT00551629
Other study ID # V419-002
Secondary ID 2007_580
Status Completed
Phase Phase 2
First received October 29, 2007
Last updated October 29, 2015
Start date May 2001
Est. completion date March 2003

Study information

Verified date October 2015
Source Merck Sharp & Dohme Corp.
Contact n/a
Is FDA regulated No
Health authority Canada: Health Canada
Study type Interventional

Clinical Trial Summary

The purpose of this study is to evaluate the safety, tolerability and immunogenicity of 4 different formulations of the HR5I vaccine (Haemophilus influenzae type b conjugate, recombinant hepatitis B surface antigen, diphtheria, tetanus, 5-component acellular pertussis, and inactivated poliovirus Types 1, 2, and 3). The primary hypothesis is that at least 1 of the 4 formulations of HR5I administered as a primary series at 2, 3, and 4 months of age will be acceptable (similar to targeted rates) with respect to Postdose 3 antibody responses to all antigens.


Description:

Participants will be randomized into 4 arms:

AR51 (12, 10): arm receiving vaccine formulation containing 12 mcg of polyribosylribitol phosphate (PRP) conjugates to tetanus toxoid (PRP-T) and 10 mcg of Hepatitis B surface antigen (HBsAg)

PR51 (3, 10): arm receiving vaccine formulation containing 3 mcg of PRP conjugated to the outer membrane protein complex of Neisseria meningitides (PRP-OMPC) and 10 mcg of HBsAg

PR51 (6, 10): arm receiving vaccine formulation containing 6 mcg of PRP-OMPC and 10 mcg of HBsAg

PR51 (6, 15): arm receiving vaccine formulation containing 6 mcg of PRP-OMPC and 15 mcg of HBsAg


Recruitment information / eligibility

Status Completed
Enrollment 708
Est. completion date March 2003
Est. primary completion date March 2003
Accepts healthy volunteers Accepts Healthy Volunteers
Gender Both
Age group 6 Weeks to 9 Weeks
Eligibility Inclusion Criteria:

- Healthy infants 2 months of age who have not received prior vaccinations for Haemophilus influenzae type b (Hib), hepatitis B, Diptheria/Pertussis/Tetanus (DPT), or Polio

Exclusion Criteria :

- Documented HIV infection (child or mother)

- Documented HBsAg-seropositivity (child or mother)

- History of invasive Hib disease, hepatitis B, diphtheria, tetanus, pertussis, or poliovirus infection

- History of seizure disorder, developmental delay, or any other neurologic disorder

- Underlying medical conditions such as inborn errors of metabolism, failure to thrive, or any major congenital abnormalities requiring surgery

- Prior or anticipated receipt of immune globulin, blood, or blood products

- Known hypersensitivity to any component of the investigational vaccines being administered in this protocol

- Any history or condition that would exclude the child from receiving any vaccine administered under this protocol

- Any condition that, in the opinion of the investigator, may interfere with the evaluation of the study objectives

Study Design

Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Prevention


Related Conditions & MeSH terms


Intervention

Biological:
AR51 (12, 10)
vaccine formulation containing 12 mcg of PRP-T and 10 mcg of HBsAg
PR51 (3, 10)
vaccine formulation containing 3 mcg of PRP-OMPC and 10 mcg of HBsAg
PR51 (6, 10)
vaccine formulation containing 6 mcg of PRP-OMPC and 10 mcg of HBsAg
PR51 (6, 15)
vaccine formulation containing 6 mcg of PRP-OMPC and 15 mcg of HBsAg

Locations

Country Name City State
n/a

Sponsors (1)

Lead Sponsor Collaborator
Merck Sharp & Dohme Corp.

References & Publications (1)

Halperin SA, Tapiero B, Diaz-Mitoma F, Law BJ, Hoffenbach A, Zappacosta PS, Radley D, McCarson BJ, Martin JC, Brackett LE, Boslego JW, Hesley TM, Bhuyan PK, Silber JL. Safety and immunogenicity of a hexavalent diphtheria-tetanus-acellular pertussis-inacti — View Citation

Outcome

Type Measure Description Time frame Safety issue
Primary Percentage of participants with level of anti-PRP antibodies >1.0 µg/mL at the Postdose 3 time point At 5 months of age (1 month after 3rd vaccination) No
Primary Percentage of participants with level of anti-HBsAg antibodies =10 mIU/L at the Postdose 3 time point At 5 months of age (1 month after 3rd vaccination) No
Primary Percentage of participants with a =4-fold rise in levels of antibodies to pertussis antigens (toxoid [PTxd], Filamentous Hemagglutinin [FHA], Fimbria 2 & Fimbria 3 [FIM], and Pertactin [PRN]) at the Postdose 3 time point At 5 months of age (1 month after 3rd vaccination) No
Primary Percentage of participants with level of anti-diphtheria antibodies =0.01 IU/mL at the Postdose 3 time point At 5 months of age (1 month after 3rd vaccination) No
Primary Percentage of participants with level of anti-tetanus antibodies =0.01 IU/mL at the Postdose 3 time point At 5 months of age (1 month after 3rd vaccination) No
Primary Percentage of participants with neutralizing anti-poliovirus antibodies (Types 1, 2, and 3) at =1:8 dilution at the Postdose 3 time point At 5 months of age (1 month after 3rd vaccination) No
Secondary Number of participants with at least 1 adverse event (AE) From 1st vaccination up to 14 days following last vaccination (up to 14.5 months) Yes
Secondary Number of participants who discontinued study treatment due to an AE From 1st vaccination up to 14 days following last vaccination (up to 14.5 months) Yes
See also
  Status Clinical Trial Phase
Completed NCT00551915 - A Study of the Safety and Tolerability of V419 in Healthy Infants at 2,4, 6 and 12 to 14 Months of Age (V419-003) Phase 2