A Phase Ia Clinical Trial to Assess the Safety and Immunogenicity of New Plasmodium Falciparum Malaria Vaccine Candidates ChAd63 RH5 Alone and With MVA RH5
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Undersøgelsestype
Undersøgelsestype
Tilmelding (Faktiske)
Tilmelding
Fase
Fase
- Fase 1
Kontakter og lokationer
Studiesteder
-
-
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Oxford, Det Forenede Kongerige, OX3 7LE
- Centre for Clinical Vaccinology and Tropical Medicine, University of Oxford
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Southampton, Det Forenede Kongerige
- Wellcome Trust CRF, Southampton General Hospital, University of Southampton
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
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
- For females only, willingness to practice continuous effective contraception during the study and a negative pregnancy test on the day(s) of screening and vaccination
- Agreement to refrain from blood donation during the course of the study
- Provide written informed consent
Exclusion Criteria:
- Participation in another research study involving receipt of 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 human immunodeficiency virus (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)
- History of allergic disease or reactions likely to be exacerbated by any component of the vaccine, e.g. egg products.
- Any history of anaphylaxis in reaction to vaccination
- Pregnancy, lactation or willingness/intention to become pregnant during the study
- History of cancer (except basal cell carcinoma of the skin and cervical carcinoma in situ)
- History of serious psychiatric condition
- 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)
- History of clinical malaria (any species)
- Travel to a malaria endemic region during the study period or within the previous six months
- Any clinically significant abnormal finding on screening biochemistry or haematology blood tests or urinalysis
- 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
- Inability of the study team to contact the volunteer's general practitioner (GP) to confirm medical history and safety to participate
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Ikke-randomiseret
- Interventionel model: Parallel tildeling
- Maskning: Ingen (Åben etiket)
Antal våben
Våben og indgreb
Deltagergruppe / ArmDeltagergruppe / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Eksperimentel: Group 1 (ChAd63 RH5 low dose)
1 dose of ChAd63 RH5 5 x 10^9 vp intramuscularly
|
ChAd63 RH5 at 5 x 10^9 vp
Andre navne:
|
|
Eksperimentel: Group 2A (ChAd63 RH5 full dose)
1 dose of ChAd63 RH5 at 5 x 10^10 vp intramuscularly
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ChAd63 RH5 at 5 x 10^10 vp
Andre navne:
|
|
Eksperimentel: Group 2B (ChAd63 RH5 full dose and MVA RH5 low dose)
1 dose of ChAd63 RH5 at 5 x 10^10 vp intramuscularly and 1 dose MVA RH5 at 1 x 10^8 pfu 8 weeks later intramuscularly
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ChAd63 RH5 at 5 x 10^10 vp
Andre navne:
MVA RH5 at 1 x 10^8 pfu
Andre navne:
|
|
Eksperimentel: Group 2C (ChAd63 RH5 full dose and MVA RH5 full dose)
1 dose of ChAd63 RH5 at 5 x 10^10 vp intramuscularly and 1 dose MVA RH5 at 2 x 10^8 pfu 8 weeks later intramuscularly
|
ChAd63 RH5 at 5 x 10^10 vp
Andre navne:
MVA RH5 at 2 x 10^8 pfu
Andre navne:
|
Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
To assess the safety of ChAd63 RH5 when administered alone and in heterologous prime-boost with MVA RH5
Tidsramme: 240 days
|
Occurrence of solicited and unsolicited adverse events will be monitored at each clinic visit from diary cards, clinical review, clinical examination (including observations) and laboratory results.
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240 days
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
|
To assess the cellular and humoral immunogenicity of ChAd63 RH5 when administered alone, and in heterologous prime-boost with MVA RH5 in healthy volunteers.
Tidsramme: 240 days
|
P. falciparum RH5-specific immunogenicity will be assessed by a variety of immunological assays.
These may include ex vivo ELISpot assays for interferon gamma and flow cytometry assays, as well as antibody ELISAs, functional antibody assays and B cell analyses.
Other exploratory immunological assays including cytokine analysis, other antibody assays, anti-adenovirus antibodies, DNA analysis of genetic polymorphisms potentially relevant to vaccine immunogenicity and gene expression studies amongst others may be performed at the discretion of the Investigators.
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240 days
|
Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Samarbejdspartnere
Samarbejdspartnere
Datoer for undersøgelser
Studer store datoer
Studiestart
Studiestart
Primær færdiggørelse (Faktiske)
Primær færdiggørelse
Studieafslutning (Faktiske)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Skøn)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- VAC057
- 2013-005458-31 (EudraCT nummer)
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