- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00121771
Malaria Candidate Vaccines FP9 Circumsporozoite (CS) and MVA CS in Adult Gambian Men
A Phase 1 Trial of the Malaria Candidate Vaccines FP9 CS and MVA CS in Adult Gambian Men Aged 18 - 45 Years
Study Overview
Detailed Description
Objectives:
The primary aim was the assessment of safety and reactogenicity of these vaccines in Gambian adults. The secondary aim was the assessment of immunogenicity and comparison with UK adults given the same vaccines.
Study Area:
The study was conducted in the town of Farafenni, about 200km east of the capital city, Banjul. In this area, malaria is highly seasonal with an entomological inoculation rate between 10-50 bites per year. This study was carried out from January to June, when the incidence of malaria is low.
Study Population:
The study involved 32 healthy Gambian adults aged 18-45 years. Volunteers were subjected to a thorough physical and medical examination. Exclusion criteria included a low PCV (< 30%); raised plasma creatinine or ALT levels; and HIV positivity, as determined by ELISA assays.
Study Procedure:
After prior consultations with community leaders, public meetings were held to inform the community of the planned study. Volunteers aged 18-45 years were then invited to take part in the study after written informed consent was obtained in the presence of the principal investigator. Prior to the start of the screening exercise, the investigators checked the age and identity of each volunteer and conducted pre-HIV test counselling. Screening involved a thorough physical examination, blood sampling for haematological (full blood count, packed cell volume [PCV]), renal (plasma creatinine) and hepatic (alanine aminotransferase) tests and HIV 1 and 2 testing by ELISA. All eligible volunteers were issued unique study numbers and photo identification cards.
The initial part of the study was designed to determine the dose and safety of the individual vaccines using an open-label dose escalation method. Study volunteers were randomly allocated to two groups of four that received 5 x 10^7 pfu id of either FP9 CS or MVA CS. When a good safety profile was evident one week after this dose, another set of four volunteers per group received a higher dose (1 x 10^8 pfu id) of FP9 CS or MVA CS. After the investigators had achieved a satisfactory safety profile with a higher dose of both vaccines given alone, they proceeded to administer the vaccines in combination using the heterologous prime-boost regime. The vaccines were administered at 4-week intervals. Eight volunteers received FP9 CS at week 0 followed by MVA CS at week 4 (FM group). Another set of 8 volunteers received FP9 CS at weeks 0 and 4, followed by MVA CS at week 8 (FFM). Following vaccination, volunteers were observed for 1 hour and given a course of antipyretic (paracetamol) to take if required. A physician and a study nurse could be contacted by the volunteers at anytime during the course of the study. In addition, home visits were made by field workers on days 1, 2, 7 and 28, after each vaccination, to record adverse events using a standard questionnaire.
Sample Size:
Sample size was determined by the requirement to make a preliminary evaluation of inter-group and inter-individual variability, to avoid excessive risk and to allow for a realistic workload. Statistical significance may not be reached in this study with low power, but a non-significant finding would provide justification for the need for a study with greater power.
Data Safety Monitoring Board (DSMB):
An international DSMB was established to monitor the conduct of the trial and to approve the analytical plan. The trial was conducted in line with the ICH Good Clinical Practices guidelines and with the Medical Research Council (MRC) rules and regulations for the conduct of clinical trials.
Study Type
Enrollment
Phase
- Phase 1
Contacts and Locations
Study Locations
-
-
-
Banjul, Gambia, P.O.Box 273, Banjul
- Medical Research Council Laboratories
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Healthy adult male aged 18-45 years
Exclusion Criteria:
- Clinically significant history of skin disorder (eczema, psoriasis, etc.), allergy, immunodeficiency, cardiovascular disease, respiratory disease, endocrine disorder, liver disease, renal disease, gastrointestinal disease or neurological illness
- Any clinical evidence of immunosuppression such as oral candida, stomatitis, aphthous or septic ulceration, septic skin lesions or any clinical or laboratory evidence of infection or immunocompromise
- History of splenectomy
- Haematocrit of less than 30%
- Serum creatinine concentration >130mmol/L
- Serum ALT concentration >42IU/L
- Blood transfusion within one month of the beginning of the study
- Administration of any other vaccine or immunoglobulin within two weeks before scheduled MVA vaccination
- Positive HIV antibody test
- Current participation in another clinical trial, or within 12 weeks of this study
- Any other finding which, in the opinion of the investigators, would increase the risk of an adverse outcome from participation in the trial
- Likelihood of travel away from the study area for the duration of the study
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Non-Randomized
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
---|
Safety and immunogenicity
|
Secondary Outcome Measures
Outcome Measure |
---|
Comparison of immunogenicity with non-immune UK adults
|
Collaborators and Investigators
Investigators
- Study Chair: Adrian VS Hill, MD, Phd, Centre for Human Genetics, University of Oxford
Study record dates
Study Major Dates
Study Start
Primary Completion
Study Completion
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- ITDCVG28
- VAC 026
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Malaria
-
University of California, San FranciscoCenters for Disease Control and Prevention; University of Massachusetts, Amherst and other collaboratorsRecruitingPlasmodium Falciparum Malaria | Plasmodium Vivax MalariaLao People's Democratic Republic
-
University of OxfordWellcome Trust; Ministry of public Health AfghanistanCompletedVivax Malaria | Uncomplicated Falciparum MalariaAfghanistan
-
Menzies School of Health ResearchInternational Centre for Diarrhoeal Disease Research, Bangladesh; Addis Ababa... and other collaboratorsCompletedMalaria | Vivax Malaria | Falciparum MalariaEthiopia, Bangladesh, Indonesia
-
Medicines for Malaria VentureAsociacion Civil Selva AmazonicaCompletedPlasmodium Falciparum Malaria | Plasmodium Vivax MalariaPeru
-
Gadjah Mada UniversityMenzies School of Health Research; Eijkman Institute for Molecular Biology; Timika...Completed
-
Menzies School of Health ResearchNational Health and Medical Research Council, Australia; Wellcome Trust; National...CompletedVivax Malaria | Falciparum MalariaIndonesia
-
London School of Hygiene and Tropical MedicineWorld Health Organization; United Nations High Commissioner for Refugees; HealthNet... and other collaboratorsCompletedMalaria | Vivax Malaria | Falciparum MalariaPakistan
-
Menzies School of Health ResearchNational Health and Medical Research Council, Australia; Wellcome Trust; National...CompletedVivax Malaria | Falciparum MalariaIndonesia
-
University of IbadanShin Poong Pharm Co Ltd 161 yoksam-ro, Gangnam-Gu Seoul 135-925, Korea; Institute...CompletedPlasmodium Falciparum Malaria | Uncomplicated Malaria | Malaria FeverNigeria
-
Research Institute for Tropical Medicine, PhilippinesWorld Health OrganizationCompletedTES of Artemether-lumefantrine for Pf and Chloroquine for Pv in the Philippines From 2013-2014 (TES)Malaria | Vivax Malaria | Falciparum Malaria | Malaria Recrudescence
Clinical Trials on FP9 CS
-
European Malaria Vaccine InitiativeUniversity of Oxford; Wellcome TrustCompletedMalaria | Malaria, FalciparumUnited Kingdom
-
European Malaria Vaccine InitiativeUniversity of Oxford; Wellcome Trust; Walter Reed Army Institute of Research...Completed
-
London School of Hygiene and Tropical MedicineUniversity of Oxford; Wellcome Trust; Medical Research Council Unit, The GambiaCompleted
-
University of OxfordCompleted
-
University of OxfordMedical Research Council; Walter Reed Army Institute of Research (WRAIR); Swiss... and other collaboratorsCompletedMalaria | Malaria, FalciparumUnited Kingdom
-
Virginia Polytechnic Institute and State UniversityRecruiting
-
Yan JinXijing Hospital; Tang-Du HospitalUnknownJoint Diseases | Osteochondritis | Osteochondritis DissecansChina
-
Eximis SurgicalTerminatedLaparoscopic Gynecological SurgeryUnited States
-
CorrectSequence Therapeutics Co., LtdFirst Affiliated Hospital of Guangxi Medical UniversityNot yet recruiting
-
PATHUnited States Agency for International Development (USAID); Centers for Disease... and other collaboratorsCompletedMalariaUnited States, Mozambique