NCT00386542

Brief Summary

This is a sequential phase I and II, controlled, double-blinded study to determine whether immune responses suggesting protection against influenza can safely be induced in young children by two reduced doses one month apart of 0.1 mL of a trivalent inactivated influenza vaccine (INF) administered by the intradermal (ID) route with an investigational ID spacer on a United States (U.S.)-licensed needle-free jet injector (JI), compared to two standard intramuscular (IM) 0.25 mL doses by needle-syringe (N-S) in this age group. The locale is a developing country where financial restraints for the use of full-dose influenza vaccine would limit protection from an influenza pandemic threat, where N-Ss pose dangers and drawbacks in clinical use, and where Mantoux-type N-S ID injections are difficult to administer during mass campaigns.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
450

participants targeted

Target at P75+ for phase_1

Timeline
Completed

Started Oct 2006

Typical duration for phase_1

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

October 1, 2006

Completed
9 days until next milestone

First Submitted

Initial submission to the registry

October 10, 2006

Completed
1 day until next milestone

First Posted

Study publicly available on registry

October 11, 2006

Completed
3.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 1, 2009

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2010

Completed
Last Updated

August 5, 2024

Status Verified

July 1, 2024

Enrollment Period

3.1 years

First QC Date

October 10, 2006

Last Update Submit

July 31, 2024

Conditions

Keywords

vaccinationinfluenza vaccinejet injectionintradermal injectioninfancychildrendose-sparingcutaneous vaccinationDominican Republicpandemic preparednessjet injectorreduced dosageimmunogenicityreactogenicitysafetyneedle-freeimmune responsehemagglutination inhibitionInfant

Outcome Measures

Primary Outcomes (1)

  • Rates of seroconversion (SC) on HI assay 1 month after dose 2. SC defined as titer >= 40 among initial-seronegatives (titer < 8 on day 0); OR, a followup titer which rises >= 4-fold.

    seroconversion and safety assessed through occurrence of local and systemic reactions

    One month after each of doses 1 and 2.

Secondary Outcomes (4)

  • Rates of local and systemic reactions

    Up to 42 days for prompted symptoms after investigational doses 1 and 2. Up to 6 months for unsolicited ones.

  • Seroprotection (SP) on HI assay, defined as >= 40 regardless of baseline

    One month after each of doses 1 and 2.

  • Geometric mean titers (GMT) on HI

    One month after each of doses 1 and 2.

  • Geometric mean increase (GMI) on HI

    One month after each of doses 1 and 2.

Study Arms (3)

ID-JI-0.1

EXPERIMENTAL

Group "ID-JI-0.1" (n = 16) - reduced 0.1 mL INF doses administered intradermally (ID) by needle-free jet injector (JI) (Biojector® 2000 subcutaneous syringe no. 2 \[green color code\], with 2 cm investigational spacer, Bioject Medical Technologies, Inc., Portland, OR, USA)

Biological: Vaxigrip® trivalent inactivated influenza vaccineDevice: Intradermal spacer on Biojector® 2000 jet injector

IM-NS-0.1

ACTIVE COMPARATOR

Group "IM-NS-0.1" (n = 16) - reduced 0.1 mL INF doses administered intramuscularly (IM) needle-syringe (NS) (via 22-25 gauge needle, minimum 25 mm/1-inch length)

Biological: Vaxigrip® trivalent inactivated influenza vaccine

IM-NS-0.25 control

ACTIVE COMPARATOR

Group "IM-NS-0.25" (controls) (n = 16) - full 0.25 mL INF doses administered intramuscularly (IM) by needle-syringe (NS) (22-25 gauge needle, minimum 25 mm/1-inch length)

Biological: Vaxigrip® trivalent inactivated influenza vaccine

Interventions

See full description elsewhere in this record.

ID-JI-0.1IM-NS-0.1IM-NS-0.25 control

See elsewhere in this record for full description.

ID-JI-0.1

Eligibility Criteria

Age6 Months - 24 Months
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Age from \> = 6 to \< 24 months (not having reached 2nd birthday).
  • Born after a full-term (≥ 37 weeks), and birth weight of \>= 2.5 kg (\>= 5 pounds, 8 ounces)
  • History of prior or first attendance as a patient, or as a sibling of a patient, seeking routine immunization or other clinical care at the Hospital Infantíl Robert Reid Cabral (HIRRC)
  • The parent(s) or legal guardian(s) provide(s) written informed consent and agree(s) to bring the infant back to the clinic for all visits scheduled in the study
  • Up-to-date for routine doses of vaccines officially recommended for the patient's age in the Dominican Republic to prevent tuberculosis, polio, diphtheria, tetanus, pertussis, hepatitis B, and Haemophilus influenzae B
  • In good health, as determined by medical history and physical examination collected in accordance with the Case Report Form (CRF), and by the clinical judgment of the investigators.

You may not qualify if:

  • Infants WHOSE PARENT(S)/LEGAL GUARDIAN(S):
  • Are unable or unwilling to give written informed consent for their infant to participate in the study
  • Cannot be contacted by telephone (family's own or a neighbor's) if necessary for adverse events if scheduled followup return appointments are missed
  • INFANTS who:
  • Have fever (by parental report or by rectal temperature ≥ 38.5° C or axillary ≥ 38.0° C) currently or within the past 3 days, or who are currently suffering from an acute or chronic infectious disease (including known HIV)
  • Have had an acute or chronic infection requiring systemic antimicrobial therapy (antibiotic or antiviral) or other prescribed treatment within the past 21 days. This includes any underlying illness that may limit their response to vaccination, such as those receiving intravenous immunoglobulin for agammaglobulinemia, or systemic steroid therapy.
  • Are malnourished, defined by weight less than two standard deviations below the median weight for their age
  • Are allergic to eggs, or have a history of any anaphylactic shock, asthma, urticaria, or other allergic reaction after previous vaccinations, or have allergy or hypersensitivity to any component of the study vaccine
  • Have ever previously received any influenza vaccine
  • Have received within the prior 28 days, or for whom there is the indication to receive in the next 56 days, any non-study vaccination or investigational agent outside of the study
  • Have a known bleeding diathesis, or any condition with a prolonged bleeding time
  • Currently have any serious confirmed or suspected disease, such as metabolic, cardiac, or autoimmune disease, or diabetes
  • Have a history of epilepsy or a seizure disorder, or neurodevelopmental disorders such as autism
  • Have a genetic anomaly or known cytogenic disorder (e.g., Down's syndrome)
  • Have leukemia, lymphoma, or any other cancer/neoplasm
  • +4 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Infantíl Dr. Robert Reid Cabral

Santo Domingo, Nacional, 2, Dominican Republic

Location

Related Publications (1)

  • Palomeque FS, Weniger BG, Jet-Injected Cutaneous Influenza Vaccination Study Group. History and Technologies for Cutaneous Influenza Vaccination; and Preliminary Results from a CDC Trial of Jet-Injected, Needle-free Influenza Vaccine in ≥6 to <24-month-old Children in the Dominican Republic. CDC Vaccine Technology Seminar Series & CDC Influenza Division Seminar Series (Centers for Disease Control and Prevention), Atlanta, GA, 24 September 2013

    RESULT

Related Links

MeSH Terms

Conditions

Influenza, Human

Condition Hierarchy (Ancestors)

Respiratory Tract InfectionsInfectionsOrthomyxoviridae InfectionsRNA Virus InfectionsVirus DiseasesRespiratory Tract Diseases

Study Officials

  • Bruce G Weniger, MD, MPH

    CDC (bgweniger@siamlotus.com) (bgw2@cdc.gov obsolete by 2021).com)

    PRINCIPAL INVESTIGATOR
  • Virgen Gómez, MD

    Hospital Infantíl Dr. Robert Reid Cabral

    STUDY DIRECTOR
  • Jesús M Feris Iglesias, MD

    Hospital Infantíl Dr. Robert Reid Cabral

    STUDY DIRECTOR
  • Josefina Fernández, MD

    Hospital Infantíl Dr. Robert Reid Cabral

    STUDY DIRECTOR
  • Pedro Moro, MD, MPH

    Immunization Safety Office, Centers for Disease Control and Prevention

    STUDY DIRECTOR
  • Martin Friede, PhD

    Initiative for Vaccine Research, World Health Organization

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
FED
Responsible Party
SPONSOR INVESTIGATOR
PI Title
epidemiologist

Study Record Dates

First Submitted

October 10, 2006

First Posted

October 11, 2006

Study Start

October 1, 2006

Primary Completion

November 1, 2009

Study Completion

May 1, 2010

Last Updated

August 5, 2024

Record last verified: 2024-07

Locations