Safety and Immunogenicity of New Malaria Vaccine Candidate ChAd63 CS Administered Alone and With MVA CS

NCT ID: NCT01450280

Last Updated: 2012-11-29

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE1

Total Enrollment

24 participants

Study Classification

INTERVENTIONAL

Study Start Date

2011-12-31

Study Completion Date

2012-10-31

Brief Summary

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This is an open label phase I study, to assess the safety of a novel malaria vaccine, AdCh63 CS, simian adenovirus encoding Plasmodium falciparum liver stage antigen, Circumsporozoite protein. All volunteers recruited will be healthy adults. They will be primed with various doses of AdCh63 CS administered intramuscularly. Some of the volunteers will receive a booster vaccination with MVA CS administered via intramuscular route. Safety data will be collected for each vaccination regimen. Secondary aim of this study will be to assess the immune responses generated by vaccination.

Detailed Description

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Conditions

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Malaria

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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Group 1A

AdCh63 CS 5x10\^9 vp

Group Type EXPERIMENTAL

ChAd63 CS

Intervention Type BIOLOGICAL

ChAd63 CS 5x10\^9 vp intra-muscularly Day 0

Group 1B

ChAd63 CS 5x10\^9 vp Day 0; MVA CS 2x10\^8 pfu Day 56

Group Type EXPERIMENTAL

ChAd63 CS, MVA CS

Intervention Type BIOLOGICAL

ChAd63 CS 5x10\^9 vp intra-muscularly Day 0; MVA CS 2x10\^8 pfu intra-muscularly Day 56

Group 2A

AdCh63 CS 5 x 10\^10 vp

Group Type EXPERIMENTAL

ChAd63 CS

Intervention Type BIOLOGICAL

ChAd63 CS 5x10\^10 vp intra-muscularly Day 0

Group 2B

ChAd63 CS 5x10\^10 vp Day 0; MVA CS 2x10\^8 pfu Day 56

Group Type EXPERIMENTAL

ChAd63, MVA CS

Intervention Type BIOLOGICAL

ChAd63 CS 5x10\^10 vp intra-muscularly Day 0; MVA CS 2x10\^8 pfu intra-muscularly Day 56

Interventions

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ChAd63 CS

ChAd63 CS 5x10\^9 vp intra-muscularly Day 0

Intervention Type BIOLOGICAL

ChAd63 CS, MVA CS

ChAd63 CS 5x10\^9 vp intra-muscularly Day 0; MVA CS 2x10\^8 pfu intra-muscularly Day 56

Intervention Type BIOLOGICAL

ChAd63 CS

ChAd63 CS 5x10\^10 vp intra-muscularly Day 0

Intervention Type BIOLOGICAL

ChAd63, MVA CS

ChAd63 CS 5x10\^10 vp intra-muscularly Day 0; MVA CS 2x10\^8 pfu intra-muscularly Day 56

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Healthy adults aged 18 to 50 years
* Able and willing (in the Investigator"s opinion) to comply with all study requirements
* Willing to allow the investigators to discuss the volunteer"s medical history with their General Practitioner
* Women only: Must practice continuous effective contraception for the duration of the study
* Agreement to refrain from blood donation during the course of the study and for 6 months after the end of their involvement in the study.
* Written informed consent

Exclusion Criteria

* History of clinical P. falciparum malaria
* Travel to a malaria endemic region during the study period or within the preceding six months with a significant risk of malaria exposure.
* Participation in another research study involving an investigational product in the 30 days preceding enrolment, or planned use during the study period.
* Prior receipt of an investigational malaria vaccine or any other investigational vaccine likely to impact on interpretation of the trial data.
* Administration of immunoglobulins and/or any blood products within the three months preceding the planned administration of the vaccine candidate.
* Any confirmed or suspected immunosuppressive or immunodeficient state, including HIV infection; asplenia; recurrent, severe infections and chronic (more than 14 days) immunosuppressant medication within the past 6 months (inhaled and topical steroids are allowed)
* Pregnancy, breast feeding or intention to become pregnant during the study
* History of allergic disease or reactions likely to be exacerbated by any component of the vaccine e.g. egg products, Kathon.
* History of clinically significant contact dermatitis.
* Any history of anaphylaxis post vaccination.
* History of cancer (except basal cell carcinoma of the skin and cervical carcinoma in situ).
* History of serious psychiatric condition that may affect participation in the study.
* Any other serious chronic illness requiring hospital specialist supervision.
* Suspected or known current alcohol abuse as defined by an alcohol intake of greater than 42 units every week.
* Suspected or known injecting drug abuse in the 5 years preceding enrolment.
* Seropositive for hepatitis B surface antigen (HBsAg).
* Seropositive for hepatitis C virus (antibodies to HCV).
* Any clinically significant abnormal finding on biochemistry or haematology blood tests, urinalysis or clinical examination.
* Any other significant disease, disorder or finding which may significantly increase the risk to the volunteer because of participation in the study, affect the ability of the volunteer to participate in the study or impair interpretation of the study data.
Minimum Eligible Age

18 Years

Maximum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Oxford

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Sam McConkey

Role: PRINCIPAL_INVESTIGATOR

Clinical Research Centre Royal College of Surgeons in Ireland (RCSI)

Locations

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Clinical Research Centre Royal College of Surgeons in Ireland (RCSI), Beaumont Hospital

Dublin, , Ireland

Site Status

Countries

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United Kingdom Ireland

References

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de Barra E, Hodgson SH, Ewer KJ, Bliss CM, Hennigan K, Collins A, Berrie E, Lawrie AM, Gilbert SC, Nicosia A, McConkey SJ, Hill AV. A phase Ia study to assess the safety and immunogenicity of new malaria vaccine candidates ChAd63 CS administered alone and with MVA CS. PLoS One. 2014 Dec 18;9(12):e115161. doi: 10.1371/journal.pone.0115161. eCollection 2014.

Reference Type DERIVED
PMID: 25522180 (View on PubMed)

Other Identifiers

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VAC038

Identifier Type: -

Identifier Source: org_study_id