A phase II randomized, double-blind (observer blind), adjuvant justification study of RTS,S/AS01B and RTS,S/AS02A, candidate malaria vaccines, administered according to a 0, 1, 2 months schedule in malaria-naive adults aged 18 to 45 years. - Malaria-048
- Conditions
- Malaria disease
- Registration Number
- EUCTR2006-002095-18-BE
- Lead Sponsor
- GlaxoSmithKline Biologicals
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ot Recruiting
- Sex
- All
- Target Recruitment
- 0
• A male or female between, and including, 18 and 45 years of age at the time of the first vaccination.
• Written informed consent obtained from the subject.
• Free of obvious health problems as established by medical history and clinical examination before entering into the study.
• Have clinically normal laboratory values for creatinine, alanine aminotransferase (ALT), aspartate aminotransferase (AST), complete blood count (CBC) and differential at screening.
• Be seronegative for human immunodeficiency virus 1 and 2 (HIV 1/2) antibodies, hepatitis B surface antigen (HBsAg) and hepatitis C virus (HCV) antibodies.
• Have anti HBs titre >=10mIU/ml at screening.
• If the subject is female, she must be of non-childbearing potential, i.e. have a current tubal ligation, hysterectomy, ovariectomy or be post-menopausal, or if she is of childbearing potential, she must practice adequate contraception for 30 days prior to vaccination, have a negative pregnancy test and continue such precautions for 2 months after completion of the vaccination series.
Are the trial subjects under 18? no
Number of subjects for this age range:
F.1.2 Adults (18-64 years) yes
F.1.2.1 Number of subjects for this age range
F.1.3 Elderly (>=65 years) no
F.1.3.1 Number of subjects for this age range
• Use of any investigational or non-registered product (drug or vaccine) other than the study vaccine(s) within 30 days preceding the first dose of study vaccine, or planned use during the study period.
• Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within six months prior to the first vaccine dose. (For corticosteroids, this will mean prednisone, or equivalent, >= 0.5 mg/kg/day. Inhaled and topical steroids are allowed.)
• Planned administration/ administration of a vaccine not foreseen by the study protocol within 30 days of the first dose of vaccine.
• Concurrently participating in another clinical study, at any time during the study period, in which the subject has been or will be exposed to an investigational or a non-investigational product (pharmaceutical product or device).
• Any history of clinical malaria.
• Known exposure to malaria parasites within the previous 12 months.
• Planned travel to a malaria endemic region during the study period.
• History of allergic reactions (significant Immunoglobulin [IgE]-mediated events) or anaphylaxis to previous immunizations.
• Any confirmed or suspected immunosuppressive or immunodeficient condition, based on medical history and physical examination (no laboratory testing required).
• Personal history of autoimmune disease or subjects who describe a first-degree relative with clearly documented autoimmune disease. Exclusionary medical histories will include the following diagnoses: systemic lupus erythmatosus, rheumatoid arthritis, mixed connective tissue disease, scleroderma, vasculitis, and multiple sclerosis.
• History of allergic disease or reactions likely to be exacerbated by any component of the vaccine(s).
• Major congenital defects or serious chronic illness(es).
• History of any neurologic disorders or seizures.
• Acute disease at the time of enrolment. (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 diarrhoea, mild upper respiratory infection with or without low-grade febrile illness, i.e. Oral temperature <37.5°C (99.5°F) / axillary temperature <37.5°C (99.5°F).
• Acute or chronic, clinically significant pulmonary, cardiovascular, hepatic or renal functional abnormality, as determined by physical examination or laboratory screening tests.
• Hepatomegaly, right upper quadrant abdominal pain or tenderness.
• 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.
• History of previous exposure to experimental products containing AS02A, AS01B or related products containing MPL and QS21.
• Pregnant or lactating female.
• History of chronic alcohol consumption and/or drug abuse.
• Female planning to become pregnant or planning to discontinue contraceptive precautions.
Study & Design
- Study Type
- Interventional clinical trial of medicinal product
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method
- Secondary Outcome Measures
Name Time Method