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- Klinische proef NCT00666380
A Study to Determine the Effects of an Investigational Malaria Vaccine Given to Adults Living in the United States and Thereafter to Adults Living in Kenya
Phase 1a Open-label Dose Escalation Study to Evaluate the Safety, Reactogenicity, and Immunogenicity of the Candidate Plasmodium Falciparum Malaria Protein 010 (FMP010) Administered Intramuscularly With GSK Biologicals' Adjuvant AS01B in Healthy Malaria-Naïve Adults
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Gedetailleerde beschrijving
The study begins with the US phase in which 26 volunteers aged 18 to 50 years will be enrolled to receive an investigational malaria vaccine. The vaccine is made of a malaria protein FMP010 mixed in the adjuvant AS01B. Since this vaccine has not yet been in humans, first, 5 volunteers will get a small (10 µg) dose of FMP010 in AS01B. If it is safe, then 20 volunteers will get 50 µg FMP010 in AS01B. Vaccinations are given IM in the deltoid of the non-dominant arm, every month for 3 months. After each vaccination, the subjects will follow up at clinical trials for evaluation of any adverse events. There will be blood draws to assess safety of the vaccine as well as the level of immune response generated to the vaccine.
Upon receipt of preliminary safety results, the Kenya phase begins in which 30 volunteers who are randomized to receive either 50 µg FMP010 in AS01B (20) or the rabies vaccine (10). Vaccination and is on the same schedule as in the US phase and follow-up is for 112 days.
Studietype
Inschrijving (Werkelijk)
Fase
- Fase 1
Contacten en locaties
Studie Locaties
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Nyanza Province
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Kombewa, Kisumu, Nyanza Province, Kenia
- USAMRU-K/ KEMRI. Walter Reed Project
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Maryland
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Silver Spring, Maryland, Verenigde Staten, 20910
- Department of Clinical Trials, WRAIR
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- A male or non-pregnant, non-lactating female 18 to 50 years of age (inclusive) at the time of screening
- Free of significant health problems as established by medical history and clinical examination before entering into the study
- Available to participate for duration of study (approximately seven months)
- If the subject is female, she must be of non-childbearing potential (either surgically sterilized or one year post-menopausal) or, if of childbearing potential, she must be capable of preventing pregnancy, have a negative pregnancy test at the time of each vaccination, and must agree to continue such precautions for two months after completion of the vaccination series.
- If the volunteer indicates he/she is active duty military (on the DCT sign-in page and intake form), approval from their supervisor through the Division Director using the Statement of Supervisor's Approval Form must be signed and on file prior to receipt of any test product
- Written informed consent must be obtained from the subject before screening procedures.
- Test of Understanding
- Prior to entry into this study, subjects must score at least 80% correct on a 10- question multiple-choice quiz that assesses their understanding of this study. If they do not score 80% on the initial quiz, the protocol information will be reviewed with them to ensure comprehension, and they will have the opportunity to retest. If a volunteer fails to correctly answer 8 of 10 questions after two attempts they will be excluded from the study.
Exclusion Criteria:
- Prior receipt of any investigational malaria vaccine
- Prior receipt of a vaccine containing either QS-21, MPL or AS02 or AS01
- Use of any investigational or non-registered drug or vaccine other than the study vaccine within 30 days preceding the first dose of study vaccine, or planned use during the study period
- Administration of chronic (defined as more than 14 days) immunosuppressants or other immune-modifying drugs within six months of vaccination. For corticosteroids, this is defined as prednisone, or equivalent, 0.5 mg/kg/day. Inhaled and topical steroids are allowed.
- Planned administration of a vaccine not foreseen by the study protocol within 30 days of the first dose of the study vaccine
- Any past history of malaria
- Planned travel to malarious areas during the study period
- Any confirmed or suspected immunosuppressive or immunodeficient condition, including human immunodeficiency virus (HIV) infection
- A family history of congenital or hereditary immunodeficiency
- Chronic or active neurologic disease including seizure disorder
- History of splenectomy
Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or abnormal baseline laboratory screening tests
- ALT above normal range
- Creatinine above normal range
- Hemoglobin below normal range
- Platelet count below normal range
- Total white cell count below normal range
- Acute disease at the time of enrollment (acute disease is defined as the presence of a moderate or severe illness with or without fever). All vaccines can be administered to persons with a minor illness, such as diarrhea or mild upper respiratory infection without fever, i.e., Oral temperature < 37.5°C.
- Hepatomegaly, right upper quadrant abdominal pain or tenderness
- Seropositive for HIV, Hepatitis C virus (antibodies to HCV) and/or HBsAg
- Administration of immunoglobulins and/or any blood products within the three months preceding the first dose of study vaccine or planned administration during the study period
- Pregnant or lactating female
- Suspected or known current alcohol abuse/drug abuse as obtained by history and physical examination
- Female who is willing or intends to become pregnant during the study
- Any history of allergic reaction or anaphylaxis to previous vaccination
- Inability to make follow-up visits or complete diary cards
- Allergy to kanamycin, nickel, or imidazole
- Any other significant finding that in the opinion of the investigator would increase the risk of having an adverse outcome from participating in this study
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Preventie
- Toewijzing: Niet-gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
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Experimenteel: 10 ug of FMP010 antigen in 0.5 mL AS01B adjuvant
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Vaccinantigeen is een recombinant eiwit op basis van merozoite surface protein-1 (MSP-1) van de FVO-stam van Plasmodium falciparum, en adjuvans AS01B is een gepatenteerd adjuvans van GSK
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Experimenteel: 50 ug of FMP010 antigen in 0.5 mL AS01B adjuvant
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Vaccinantigeen is een recombinant eiwit op basis van merozoite surface protein-1 (MSP-1) van de FVO-stam van Plasmodium falciparum, en adjuvans AS01B is een gepatenteerd adjuvans van GSK
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Number of solicited adverse events
Tijdsspanne: 7 days
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Occurrence and intensity of solicited symptoms on day of vaccination and Days 1-7 after each vaccination
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7 days
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Number of unsolicited adverse events
Tijdsspanne: 30 days
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Occurrence and intensity of unsolicited symptoms over a 30-day follow-up period (day of vaccination and 29 subsequent days) after each vaccination
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30 days
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Number of serious adverse events
Tijdsspanne: 1 year
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1 year
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Percent parasite growth inhibition
Tijdsspanne: Up to 112 days
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Functionality of antibodies elicited as measured by percent parasite growth inhibition in GIA against homologous (FVO) and heterologous (3D7) parasites
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Up to 112 days
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Medewerkers en onderzoekers
Medewerkers
Onderzoekers
- Hoofdonderzoeker: Michele D Spring, MD, M.S.P.H., Walter Reed Army Institute of Research (WRAIR)
- Hoofdonderzoeker: Nekoye N. Otsyula, M.B. Ch. B., Kenya Medical Research Institute
Publicaties en nuttige links
Algemene publicaties
- Bashir IM, Otsyula N, Awinda G, Spring M, Schneider P, Waitumbi JN. Comparison of PfHRP-2/pLDH ELISA, qPCR and microscopy for the detection of plasmodium events and prediction of sick visits during a malaria vaccine study. PLoS One. 2013;8(3):e56828. doi: 10.1371/journal.pone.0056828. Epub 2013 Mar 15.
- Otsyula N, Angov E, Bergmann-Leitner E, Koech M, Khan F, Bennett J, Otieno L, Cummings J, Andagalu B, Tosh D, Waitumbi J, Richie N, Shi M, Miller L, Otieno W, Otieno GA, Ware L, House B, Godeaux O, Dubois MC, Ogutu B, Ballou WR, Soisson L, Diggs C, Cohen J, Polhemus M, Heppner DG Jr, Ockenhouse CF, Spring MD. Results from tandem Phase 1 studies evaluating the safety, reactogenicity and immunogenicity of the vaccine candidate antigen Plasmodium falciparum FVO merozoite surface protein-1 (MSP1(42)) administered intramuscularly with adjuvant system AS01. Malar J. 2013 Jan 23;12:29. doi: 10.1186/1475-2875-12-29.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- A-14620.a
- WRAIR 1417 (Andere identificatie: Walter Reed Army Institute of Research)
- A-14620 (HSRRB)
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
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