A study in young adults to see if 3 doses of Mn B vaccine works

• Register: EUCTR
• Last refreshed on: 10 July 2015
• Main ID: EUCTR2009-014492-46-ES
• Date of registration: 13/06/2013
• Prospective Registration: Yes
• Primary sponsor: Pfizer Inc, 235 East 42nd Street, New York, NY 10017
• Public title: A study in young adults to see if 3 doses of Mn B vaccine works
• Scientific title: A PHASE 3, RANDOMIZED, PLACEBO-CONTROLLED, OBSERVER-BLINDED, TRIAL TO ASSESS THE SAFETY, TOLERABILITY, AND IMMUNOGENICITY OF BIVALENT rLP2086 VACCINE WHEN ADMINISTERED AS A 3-DOSE REGIMEN IN HEALTHY YOUNG ADULTS AGED ?18 TO <26 YEARS
• Date of first enrolment: 02/08/2013
• Target sample size: 3300
• Recruitment status: Not Recruiting
• URL: https://www.clinicaltrialsregister.eu/ctr-search/search?query=eudract_number:2009-014492-46
• Study type: Interventional clinical trial of medicinal product
• Study design: Controlled: yes Randomised: yes Open: no Single blind: no Double blind: no Parallel group: yes Cross over: no Other: yes Other trial design description: observer-blinded If controlled, specify comparator, Other Medicinial Product: no Placebo: yes Other: no Number of treatment arms in the trial: 3

Countries of recruitment

Canada, Denmark, Finland, Germany, Poland, Spain, United States

Contacts

• Name: Clinical Trials.gov Call Center
• Affiliation: Pfizer Inc

• Name: Clinical Trials.gov Call Center
• Affiliation: Pfizer Inc

Key inclusion & exclusion criteria

Inclusion criteria:
Subjects must meet all of the following inclusion criteria to be eligible for enrollment into the study:
1. Evidence of a personally signed and dated informed consent document (ICD) indicating that the subject has been informed of all pertinent aspects of the study.
2. Subjects who are willing and able to comply with scheduled visits, laboratory tests, and other study procedures.
3. Male or female subject aged ?18 and <26 years at the time of enrollment.
4. Available for the entire study period and can be reached by telephone.
5. Healthy subject as determined by medical history, physical examination, and judgment of the investigator.
6. Male and female subjects of childbearing potential must agree to use a highly effective method of contraception throughout the study (through the follow-up telephone contact at month 12). A subject is of childbearing potential if, in the opinion of the investigator, he/she is biologically capable of having children and is sexually active.
7. Negative urine pregnancy test for all female subjects.
Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range 3300
F.1.3 Elderly (>=65 years) no
F.1.3.1 Number of subjects for this age range

Exclusion criteria:
Subjects presenting with any of the following will not be included in the study:
1. Previous vaccination with any meningococcal serogroup B vaccine.
2. Subjects who are scheduled to receive one or more doses of an human papilloma virus (HPV) vaccine as part of a 3-dose series during the period between Visit 1 and 28 days after the second study vaccination.
3. A previous anaphylactic reaction to any vaccine or vaccine-related component.
4. Subjects receiving any allergen immunotherapy with a non-licensed product or receiving allergen immunotherapy with a licensed product and are not on stable maintenance doses.
5. Bleeding diathesis or condition associated with prolonged bleeding time that would contraindicate intramuscular injection.
6. A known or suspected defect of the immune system that would prevent an immune response to the vaccine, such as subjects with congenital or acquired defects in B cell function, those receiving chronic systemic (oral, intravenous or intramuscular) corticosteroid therapy, or those receiving immunosuppressive therapy. Subjects in the United States with terminal complement deficiency are excluded from participation in this study. Please refer to the study reference manual (SRM) additional details.
7. History of microbiologically-proven disease caused by Neisseria meningitidis or
Neisseria gonorrhoeae.
8. Significant neurological disorder or history of seizure (excluding simple febrile seizure).
9. Receipt of any blood products, including immunoglobulin within 6 months before the first study vaccination.
10. Current chronic use of systemic antibiotics.
11. Current participation in another investigational study. Participation in purely
observational studies is acceptable.
12. Received any investigational vaccines, drugs, vaccines or devices within 28 days before administration of the first study vaccination.
13. Any neuroinflammatory or autoimmune condition, including, but not limited to,
transverse myelitis, uveitis, optic neuritis, and multiple sclerosis.
14. Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the investigator, would make the subject inappropriate for entry into this study.
15. Subjects who are investigational site staff members or relatives of those site staff members or who are Pfizer employees directly involved in the conduct of the trial or relatives of those Pfizer employees.
16. Subject is pregnant or breastfeeding.


Age minimum:
Age maximum:
Gender:
Female: yes
Male: yes

Health Condition(s) or Problem(s) studied

Pfizer?s investigational bivalent rLP2086 vaccine is being developed for prevention of invasive meningococcal disease caused by N meningitidis serogroup B.
MedDRA version: 14.1 Level: LLT Classification code 10028911 Term: Neisseria meningitidis infection NOS System Organ Class: 100000004862

Therapeutic area: Diseases [C] - Bacterial Infections and Mycoses [C01]

Intervention(s)

Product Name: rLP2086 Vaccine
Product Code: rLP2086 (PF-05212366)
Pharmaceutical Form: Suspension for injection
INN or Proposed INN: rLP2086 subfamily A
CAS Number: N/a
Current Sponsor code: N/a
Other descriptive name: N/a
Concentration unit: µg/ml microgram(s)/millilitre
Concentration type: equal
Concentration number: 120-
INN or Proposed INN: rLP2086 subfamily B
CAS Number: N/a
Current Sponsor code: N/a
Other descriptive name: N/a
Concentration unit: µg/ml microgram(s)/millilitre
Concentration type: equal
Concentration number: 120-
Pharmaceutical form of the placebo: Injection
Route of administration of the placebo: Intramuscular use

Primary Outcome(s)

Main Objective: Primary Objectives
? To assess the immune response as measured by serum bactericidal assay using human complement (hSBA) performed with 4 primary MnB test strains, two expressing a LP2086 subfamily A protein and two expressing a LP2086 subfamily B protein, measured 1 month after the third vaccination with bivalent rLP2086 vaccine.

Primary Safety Objective
? To evaluate the safety profile of bivalent rLP2086 vaccine compared to a control
(saline), as measured by local reactions, systemic events, AEs, SAEs, newly-diagnosed chronic medical conditions, medically attended adverse events, and immediate AEs.

Primary end point(s): Primary Endpoint
Five (5) co-primary endpoints are defined for the Primary Immunogenicity objective based upon results for group 1 subjects in hSBA performed with each of the 4 primary test strains: PMB80 (A22), PMB2001 (A56), PMB2948 (B24), PMB2707(B44).
? One of the 5 co-primary endpoints is the composite endpoint defined as the proportion of subjects achieving an hSBA titer ? lower limit of quantitation (LLOQ) for all 4 primary test strains combined, 1-month after the third vaccination with bivalent rLP2086 vaccine.
? Four of the co-primary endpoints are defined as the proportion of subjects achieving at least a 4-fold increase in hSBA titer from baseline to 1-month after the third vaccination with bivalent rLP2086 vaccine for each of the 4 primary test strains.
? For subjects with a baseline hSBA titer below the limit of detection (LOD) or an hSBA titer of < (1:4), a 4-fold response is defined as hSBA titer of ?1:16 or the LLOQ (whichever titer is higher).
? For subjects with a baseline hSBA titer of ? LOD (i.e, hSBA titer of ?1:4) and < (LLOQ), a 4-fold response is defined as an hSBA titer of ? four times the LLOQ.
? For subjects with a baseline hSBA titer of ? LLOQ, a 4-fold response is defined as an hSBA titer of ? four times the baseline titer.

Primary Safety Endpoints
? Percentage of subjects reporting local reactions (pain, redness and swelling) and by severity after each vaccination visit.
? Percentage of subjects reporting systemic events (fever, vomiting, diarrhea, headache, fatigue, chills, muscle pain other than muscle pain at any injection site, and joint pain) and by severity after each vaccination visit.
? Percentage of subjects reporting the use of antipyretic medication after each vaccination visit.
? Percentage of subjects with at least one SAE during the following time periods:
? 30 days after each vaccination
? 30 days after any vaccination
? During the vaccination phase [from the first study vaccination (Visit 1) through 1 month after the last study vaccination (Visit 5)]
? During the follow-up phase [(from 1 month after the last study vaccination (Visit 5) through 6 months after the third study vaccination (Visit 6)]
? Throughout the study period [from the first study vaccination (Visit 1) through 6 months after the third study vaccination (Visit 6)]
? Percentage of subjects with at least one medically attended adverse event occurring during the following time periods:
? 30 days after each vaccination
? 30 days after any vaccination
? During the vaccination phase [from the first study vaccination (Visit 1) through 1 month after the last study vaccination (Visit 5)]
? During the follow-up phase [(from 1 month after the last study vaccination (Visit 5) through 6 months after the third study vaccination (Visit 6)]
? Throughout the study period [from the first study vaccination (Visit 1) through 6 months after the third study vaccination (Visit 6)]
? Percentage of subjects with at least one newly diagnosed chronic medical condition occurring during the following time periods:
? 30 days after each vaccination
? 30 days afte rany vaccination
? During the vaccination phase [from the first study vaccination (Visit 1) through 1 month after the last study vaccination (Visit 5)]
? During the follow-up phase [(from 1 month after the last study vaccination (Visit 5) through 6 months after the third study vaccination (Visit 6)]
? Throughout the study period [from the first study vaccination (Visit 1) through 6 months after the third study
? Percentage of subjects with at least one adverse event occurring during the following time periods:
? 30 days after each vaccination
? 30 days after any vaccination
? During the vaccination phase [from the first study vaccination (Visit 1) through 1 month after the last study vaccination (Visit 5)]
? Percentage of subjects reporting at least one immediate adverse event after each vaccination.
? Subject days missing school or work due to AEs during the vaccination phase (Visit 1 though Visit 5).

Timepoint(s) of evaluation of this end point: No interim analysis is planned for this study. Only one final analysis will be performed on the final locked study database and will include all of the immunogenicity and safety analysis results related to the primary and secondary objectives

Secondary Objective: ? To describe the immune response as measured by serum bactericidal assay using human complement (hSBA) performed with 10 secondary MnB test strains expressing LP2086 subfamily A or B proteins measured 1 month after the third vaccination with bivalent rLP2086 vaccine.
? To describe the immune response as measured by serum bactericidal assay using human complement (hSBA) performed with 4 primary MnB test strains, two expressing a LP2086 subfamily A protein and two expressing a LP2086 subfamily B protein, measured 1 month after the second vaccination with bivalent rLP2086 vaccine.

Secondary Outcome(s)

Secondary end point(s): The secondary strain immunogenicity objective is based on hSBA results from subjects in group 1 using 10 test strains expressing the following variants: A29, A06, A12, A07, A15, A19, B16, B09, B03, B15. Three (3) subsets will be selected for this analysis. Each subset will be used to assess the response to 3 or 4 of the 10 secondary test strains in addition to the 4 primary test strains.
The secondary immunogenicity endpoints for the secondary hSBA test strains are:
? Proportions of subjects with hSBA titers ? LLOQ for each of the test strains at baseline and 1 month after the third vaccination with bivalent rLP2086 vaccine.
? Proportions of subjects with hSBA titers ?1:4, ?1:8, ?1:16, ?1:32, ?1:64, ?1:128 for each of the test strains at baseline and 1 month after the third vaccination with bivalent rLP2086 vaccine.
? hSBA GMTs for each of the test strains at baseline and 1 month after the third
vaccination with bivalent rLP2086 vaccine.

For group 1 subjects, additional secondary immunogenicity endpoints will include:
? Proportion of subjects with a composite hSBA response, defined as subjects with an hSBA titer of ? LLOQ for all 4 primary strains, at baseline.
? Proportion of subjects achieving a composite hSBA response defined as subjects achieving an hSBA titer of ? LLOQ for all 4 primary test strains, at 1 month after the second vaccination with bivalent rLP2086 vaccine.
? Proportion of subjects achieving at least a 4-fold increase from baseline to one month after the second vaccination with bivalent rLP2086 vaccine for each of the 4 primary test strains using the following definition:
? For subjects with a baseline hSBA titer below the LOD or a hSBA titer of < (1:4), a 4-fold response is defined as hSBA titer of ? 1:16 or the LLOQ (whichever titer is higher).
? For subjects with a baseline hSBA titer of ? LOD (i.e, hSBA titer of ?1:4) and < LLOQ, a 4-fold response is defined as an hSBA titer ? four times the LLOQ.
? For subjects with a baseline hSBA titer of ? LLOQ, a 4-fold response is defined as an hSBA titer of ? four times the baseline titer.
? Proportions of subjects achieving hSBA titers of ? LLOQ, ?1:4, ?1:8, ?1:16, ?1:32, ?1:64, ?1:128 for each of the 4 primary test strains at baseline and 1 month after the second and the third vaccination with bivalent rLP2086 vaccine.
? hSBA GMTs for each of the 4 primary test strains at baseline and 1 month after the second and the third vaccination with bivalent rLP2086 vaccine.
? Proportion of subjects achieving at least a 3-fold increase in hSBA titer from baseline to 1-month after the third vaccination with bivalent rLP2086 vaccine for each of the 4 primary test strains using the following definition:
? For subjects with a baseline hSBA titer below the LOD or a hSBA titer of < 1:4), a response is defined as hSBA titer ?1:16 or the LLOQ (whichever titer is higher).
? For subjects with a baseline hSBA titer of ? LOD (i.e, hSBA titer of ?1:4) and < LLOQ, a 3-fold response is defined as an hSBA titer of ? three times LLOQ.
? For subjects with a baseline hSBA titer of ? LLOQ, a 3-fold response is defined as an hSBA titer ? three times the baseline hSBA titer.
? Proportion of subjects achieving at least a 2-fold increase from baseline to 1-month after the third vaccination with bivalent rLP2086 vaccine for each of the 4 primary test strains using the following definition:
? For subjects with a baseline hSBA titer below the LOD or a hSBA titer if < (1:4), a response is defined as hSBA titer of ?1:16 or the LLOQ (whichever titer is higher).
? For subjects with a baseline hSBA titer of ? LOD (i.e, hSBA titer of ?1:4) and < LLOQ, a 2-fold response is defined as hSBA titer of ? two times the LLOQ.
? For subjects with a baseline hSBA titer of ? LLOQ, a 2-fold response is defined as hSBA titer of ? two times the baseline hSBA titer.

Timepoint(s) of evaluation of this end point: No interim analysis is planned for this study. Only one final analysis will be performed on the final locked study database and will include all of the immunogenicity and safety analysis results related to the primary and secondary objectives

Secondary ID(s)

2009-014492-46-FI

B1971016(6108A1-2004)

Source(s) of Monetary Support

Pfizer Inc