Skip to main content
OpenTrials
Completed

NCT Number: NCT03472014

Special Access Program IMVAMUNE®

Prophylactic smallpox vaccination for personnel actively working with or in the vicinity of replicating vaccinia virus

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Palo Alto Medical Foundation

Palo Alto, California, 94301, United States

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male and female subjects, aged 18-65 years, who will work with or in the vicinity of a replicating vaccinia virus and who volunteer for the program. Subjects may be vaccinia-naïve or vaccinia-experienced.
  • Women of child-bearing potential (WOCBP) must have a negative urine pregnancy test within 48 hours prior to vaccination.
  • WOCBP must have used an acceptable method of contraception for at least 30 days prior to the first vaccination and must agree to use an acceptable method of contraception during the vaccination period until at least 28 days after the last vaccination. A woman is considered of child-bearing potential unless post-menopausal or surgically sterilized. (Acceptable contraception methods are restricted to barrier contraceptives which include Food and Drug Administration (FDA)-approved spermicides, intrauterine contraceptive devices, or licensed hormonal products.)
  • Read, signed and dated Informed Consent Form.

Exclusion criteria

  • Pregnant or breast-feeding women.
  • Uncontrolled serious infection i.e., not responding to antimicrobial therapy.
  • History of or active autoimmune disease. Persons with vitiligo or thyroid disease taking thyroid replacement are not excluded.
  • Known or suspected impairment of immunologic function including, but not limited to, clinically significant liver disease; uncontrolled diabetes mellitus; moderate to severe kidney impairment or post organ transplant subjects.
  • History of malignancy, other than squamous cell or basal cell skin cancer, unless there has been surgical excision that is considered to have achieved cure.
  • History of coronary heart disease, myocardial infarction, angina, congestive heart failure, cardiomyopathy, stroke or transient ischemic attack, uncontrolled high blood pressure, or any other heart condition under the care of a doctor.
  • History of allergies or reactions to eggs, egg products, or gentamycin.
  • Having received any vaccinations or planned vaccinations with a live vaccine within 28 days or a killed vaccine within 14 days prior to or after IMVAMUNE®vaccination.
  • Chronic administration (defined as more than 6 days) of systemic corticosteroids within 30 days of the first planned vaccination.
  • Use of any investigational or non-registered drug or vaccine other than IMVAMUNE® within 30 days preceding the first vaccine dose.

Treatment and study plan

IMVAMUNE®

Biological

IMVAMUNE® liquid -frozen, containing 1 x 10E8 TCID50 MVA-BN® per 0.5 mL dose

Primary outcomes

  1. ELISA Seropositivity Rate

    Time frame: up to Week 7

    Seropositivity rate based on vaccinia-specific Enzyme-linked Immunosorbent Assay (ELISA). Seropositivity is defined as antibody titers ≥ detection limit (50). Percentages based on number of subjects with data available.

Secondary outcomes

  1. ELISA Seroconversion Rate

    Time frame: Week 7

    Seroconversion rate based on Enzyme-linked Immunosorbent Assay (ELISA). Seroconversion is defined as the appearance of antibody titers ≥ detection limit (50) for initially seronegative subjects, or a doubling or more of the antibody titer compared to the Screening titer for initially seropositive subjects. Percentages based on number of subjects with data available.

  2. ELISA GMT

    Time frame: up to Week 7

    Geometric Mean Titers (GMT) based on vaccinia-specific Enzyme-linked Immunosorbent Assay (ELISA). Titers below the detection limit are included with a value of '1'.

  3. Serious Adverse Events

    Time frame: up to 32 weeks

    Incidence, relationship and intensity of any Serious Adverse Event (SAE).

  4. Related Grade >=3 Adverse Events

    Time frame: within 29 days after any vaccination

    Incidence of any Grade >=3 Adverse Events possibly, probably or definitely related to the trial vaccine

  5. Non-serious AEs

    Time frame: within 29 days after any vaccination

    Incidence of non-serious AEs

Sponsors and collaborators

Lead sponsor

Bavarian Nordic

Industry

Registry information

Official study title

A Special Access Program for the Prophylactic Vaccination With IMVAMUNE® for Personnel Working Directly With or in the Vicinity of Replicating Vaccinia Virus

Important dates

Study start
2010
Primary completion
2014
Study completion
2014
First posted
Mar 21, 2018
Registry last updated
Aug 19, 2020

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Published trials that share one or more normalized conditions with this study.