Hepatitis A Virus Clinical Trial
Official title:
An Open, Randomized, Multicenter Study of the Safety, Tolerability, and Immunogenicity of VAQTA™ Given Concomitantly With PedvaxHIB™ and Infanrix™ in Healthy Children 15 Months of Age
| Verified date | February 2016 |
| Source | Merck Sharp & Dohme Corp. |
| Contact | n/a |
| Is FDA regulated | No |
| Health authority | United States: Food and Drug Administration |
| Study type | Interventional |
This two-stage study evaluates the immunogenicity, safety, and tolerability of the administration of VAQTA™ (Hepatitis A Vaccine, Inactivated) concomitantly with PedvaxHIB™ (Haemophilus B Conjugate Vaccine [Meningococcal Protein Conjugate]) and Infanrix™ (Diphtheria and Tetanus Toxoids and Acellular Pertussis Vaccine Adsorbed, GlaxoSmithKline) versus the administration of VAQTA™ in healthy children 15 months of age at study entry.
| Status | Completed |
| Enrollment | 1274 |
| Est. completion date | June 2010 |
| Est. primary completion date | June 2010 |
| Accepts healthy volunteers | Accepts Healthy Volunteers |
| Gender | Both |
| Age group | 12 Months to 17 Months |
| Eligibility |
Inclusion Criteria: - Stage 1) Healthy males and females 15 months of age with no active liver disease and a negative history of hepatitis A who have been vaccinated against Haemophilus influenzae type b (Hib), diphtheria, tetanus, and pertussis diseases - Stage 2) Healthy males and females 12 to 17 months of age with no active liver disease and a negative history of hepatitis A Exclusion Criteria: - Stage 1) Males and females previously vaccinated with hepatitis A vaccine, any immune deficiency, a history of allergy to any of the vaccine components, a history of seizure disorder or a neurologic disorder that would contraindicate pertussis vaccine, or a bleeding disorder - Stage 2) Males and females previously vaccinated with hepatitis A vaccine, any immune deficiency, a history of allergy to any of the vaccine components, or a history of bleeding disorder |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Open Label, Primary Purpose: Prevention
| Country | Name | City | State |
|---|---|---|---|
| n/a | |||
| Lead Sponsor | Collaborator |
|---|---|
| Merck Sharp & Dohme Corp. |
Petrecz M, Ramsey KP, Stek JE, Martin JC, Klopfer SO, Kuter B, Schödel FP, Lee AW. Concomitant use of VAQTA® with PedvaxHIB® and Infanrix® in 12 to 17 month old children. Hum Vaccin Immunother. 2016 Feb;12(2):503-11. doi: 10.1080/21645515.2015.1080395. — View Citation
| Type | Measure | Description | Time frame | Safety issue |
|---|---|---|---|---|
| Primary | Seropositivity Rate (SPR) to Hepatitis A | SPR is the percent of participants with Hepatitis A antibody titers >= 10 milli-International Units/milliliter (mIU/mL), 4 weeks after dose 2 of VAQTA™ regardless of their initial serostatus. Antibody titers to Hepatitis A virus (HAV) were detected in participants' serum samples using an Enzyme Immunoassay (EIA). | 4 weeks after dose 2 of VAQTA™ | No |
| Primary | Antibody Response Rate to Haemophilus Influenzae Type b (Hib) | Antibodies to the Hib capsular polysaccharide (polyribosylribitol phosphate [PRP]) are assessed in participants serum using radioimmunoassay (RIA). The limit of detection (LOD) for the RIA is 6.60 ng/mL. The antibody response rate is defined as the percentage of participants with anti-PRP titers >1.0 mcg/mL, 4 weeks postvaccination with PedvaxHIB™. |
4 weeks postvaccination with PedvaxHIB™ | No |
| Primary | Number of Participants With Adverse Events (AE) | Systemic and injection site AEs were collected from participants receiving VAQTA™ concomitantly with Infanrix™ and PedvaxHIB™ or PedvaxHIB™ (Stage I) VAQTA™ non-concomitantly with Infanrix™ and PedvaxHIB™ or PedvaxHIB™ (Stage I) VAQTA™ administered alone (Stage II) Safety data was collected on a standardized Vaccination Report Card (VRC) following each dose. Participants returned the VRC after the safety follow-up period for each dose of VAQTA™. AEs determined by the investigator to be possibly, probably or definitely related to the vaccine are reported as Vaccine-related AE. |
Days 1 to 14 after any dose of VAQTA™ for systemic AEs, and Days 1 to 5 after any dose of VAQTA™ for injection-site AEs | Yes |
| Primary | Geometric Mean Titers (GMTs) to Antibodies for the Pertussis Toxin (PT), Pertussis Filamentous Hemagglutinin Antibody (FHA), and Pertactin (PRN) Components of Infanrix™ | GMTs for antibodies to PT, FHA, and PRN were measured in serum samples of participants vaccinated with Infanrix™. IgG antibodies to PT were assessed using the anti-pertussis toxin enzyme-linked immunosorbent assay (anti-PT ELISA), with the LOD of 2.4 ELU/mL. IgG antibodies to FHA were assessed using the anti-pertussis filamentous hemagglutinin enzyme-linked immunosorbent assay (anti-FHA ELISA), with the LOD of 2.0 ELU/mL. IgG antibodies to PRN were assessed using the anti-pertussis pertactin enzyme-linked immunosorbent assay (anti-PRN ELISA), with the LOD of 3.3 ELU/mL. |
4 weeks postvaccination with Infanrix™ | No |
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