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Safety of Recombinant Hybrid GMZ 2 [GLURP + MSP 3] Blood Stage Malaria Vaccine

Primary Purpose

Malaria

Status
Unknown status
Phase
Phase 1
Locations
Gabon
Study Type
Interventional
Intervention
GMZ2 (malaria vaccine)
GMZ2 malaria vaccine
Verorab vaccine
Sponsored by
African Malaria Network Trust
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Malaria focused on measuring Malaria, Vaccine, GMZ2, Safety, African, immunogenicity

Eligibility Criteria

18 Years - 45 Years (Adult)MaleAccepts Healthy Volunteers

Inclusion Criteria:

  • Adult male Gabonese 18-45 years inclusive at the time of screening
  • Residing in Lambarene for the duration of the study
  • Separate written informed consent obtained before screening and study start respectively
  • Available to participate in follow-up for the duration of study (13 months)
  • General good health based on history and clinical examination

Exclusion Criteria:

  • Previous vaccination with a investigational vaccine or a rabies vaccine
  • Use of a investigational or non-registered drug or vaccine other than the study vaccine(s) within 30 days preceding the first study immunization, or planned use up to 30 days after the third immunization
  • Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within six months prior to the first immunization. This includes any dose level of oral steroids or inhaled steroids, but not topical steroids
  • Confirmed or suspected immunosuppressive or immunodeficient condition, including human immunodeficiency virus (HIV) infection
  • Confirmed or suspected autoimmune disease
  • History of allergic reactions or anaphylaxis to immunizations or to any vaccine component
  • History of serious allergic reactions to any substance, requiring hospitalization or emergent medical care,or history of allergy to vaccines components
  • History of splenectomy
  • Laboratory evidence of liver disease (alanine aminotransferase [ALT] greater than 1.25 times the upper limit of normal of the testing laboratory).
  • Laboratory evidence of renal disease (serum creatinine greater than the upper limit of normal of the testing laboratory, or more than trace protein or blood on urine dipstick testing).
  • Laboratory evidence of hematologic disease (absolute leukocyte count 3.5-11/µL, absolute lymphocyte count 560-5280/µL, platelet count 120,000-400,000/µL, or hemoglobin 10.0-16.5g/dL).
  • Administration of immunoglobulins and/or any blood products within the three months preceding the first study immunization or planned administration during the study period.
  • Simultaneous participation in any other interventional clinical trial
  • Acute or chronic pulmonary, cardiovascular, hepatic, renal or neurological condition, malnutrition, or any other clinical findings that in the opinion of the clinical investigator may increase the risk of participating in the study
  • Other condition that in the opinion of the clinical investigator would jeopardize the safety or rights of a participant in the trial or would render the participant unable to comply with the protocol.

Sites / Locations

  • Medical Research Unit, Albert Schweitzer HospitalRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

I, GMZ2 vaccine arm

II, Rabies vaccine arm

Arm Description

20 volunteers will receive GMZ2 vaccine on days 0, 28, and 56

20 volunteers will receive standard vaccine against rabies on the similar schedule on days 0, 28, and 56

Outcomes

Primary Outcome Measures

Local and systemic reactogenicity
Unsolicited adverse events
Occurrence of serious adverse events
Biological safety

Secondary Outcome Measures

Humoral immune response to GLURP and MSP 3
Cellural immune response

Full Information

First Posted
January 19, 2007
Last Updated
April 1, 2008
Sponsor
African Malaria Network Trust
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1. Study Identification

Unique Protocol Identification Number
NCT00424944
Brief Title
Safety of Recombinant Hybrid GMZ 2 [GLURP + MSP 3] Blood Stage Malaria Vaccine
Official Title
A Single Centre, Randomised Controlled Trial to Evaluate the Safety and Immunogenicity of Recombinant Lactococcus Lactis Hybrid GMZ 2 [GLURP + MSP 3] Blood Stage Malaria Vaccine Versus Rabies Vaccine in Healthy Gabonese Adult Volunteers
Study Type
Interventional

2. Study Status

Record Verification Date
April 2008
Overall Recruitment Status
Unknown status
Study Start Date
June 2007 (undefined)
Primary Completion Date
July 2008 (Anticipated)
Study Completion Date
August 2008 (Anticipated)

3. Sponsor/Collaborators

Name of the Sponsor
African Malaria Network Trust

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The study aims to show that the candidate malaria vaccine GMZ2 is as safe as the already publicly used vaccine against rabies. 40 adult male Gabonese volunteers will be enrolled and randomly allocated to receive either malaria vaccine or rabies vaccine without the investigator or the participants knowing what they received. They will receive 3 doses each at one month intervals, and will be followed up for one year to evaluate safety parameters. This is the first time this product will be tested in Africa
Detailed Description
Background. GMZ2 is a recombinant hybrid of the Glutamate Rich Protein (GLURP) and the Merozoite Surface Protein 3 (MSP 3).This product has been developed at Sate Serum Institute in Denmark and Bacth released by Henogen of Belgium. The phase Ia trial in malaria naive volunteers is currently ongoing in Germany, at Tuebingen University. This phase Ia trial will establish safety of the vaccine and also select the best dosage (10, 30 or 100 µg). The dosage with the best safety and immunogenicity profile will be recommended for the phase Ib trial in Gabon. 2. Study Design This will be a single center, randomized, blinded and controlled study involving 40 adult male volunteers. The entire study duration will be 16 months with each participant remaining 13 months in the study.There will be 15 scheduled hospital visits and 11 scheduled field worker home visits. The Rabies vaccine will be used as control vaccine. 3. Objectives: - The primary objective of this trial to evaluate the safety of 3 doses of GMZ2 when administered on Days 0, 28 & 56, adjuvanted with aluminum hydroxide in healthy Gabonese adults. - Secondary objectives include the following: (i). To assess the humoral response to the vaccine antigens GLURP and MSP3 by measuring the antibody response by ELISA and IFA. (ii). To assess the cellular immune response by profiling the Th1/Th2-type cytokines after 24 and 48 hours stimulation.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Malaria
Keywords
Malaria, Vaccine, GMZ2, Safety, African, immunogenicity

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
ParticipantCare ProviderInvestigatorOutcomes Assessor
Allocation
Randomized
Enrollment
40 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
I, GMZ2 vaccine arm
Arm Type
Experimental
Arm Description
20 volunteers will receive GMZ2 vaccine on days 0, 28, and 56
Arm Title
II, Rabies vaccine arm
Arm Type
Active Comparator
Arm Description
20 volunteers will receive standard vaccine against rabies on the similar schedule on days 0, 28, and 56
Intervention Type
Biological
Intervention Name(s)
GMZ2 (malaria vaccine)
Intervention Description
100 micrograms of GMZ2 in each vaccination
Intervention Type
Biological
Intervention Name(s)
GMZ2 malaria vaccine
Intervention Description
100 micrograms of GMZ2
Intervention Type
Biological
Intervention Name(s)
Verorab vaccine
Intervention Description
Anti-rabies vaccine
Primary Outcome Measure Information:
Title
Local and systemic reactogenicity
Time Frame
28 days following each immunization
Title
Unsolicited adverse events
Time Frame
1 year
Title
Occurrence of serious adverse events
Time Frame
1 year
Title
Biological safety
Time Frame
1 year
Secondary Outcome Measure Information:
Title
Humoral immune response to GLURP and MSP 3
Time Frame
1 year
Title
Cellural immune response
Time Frame
1 year

10. Eligibility

Sex
Male
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
45 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Adult male Gabonese 18-45 years inclusive at the time of screening Residing in Lambarene for the duration of the study Separate written informed consent obtained before screening and study start respectively Available to participate in follow-up for the duration of study (13 months) General good health based on history and clinical examination Exclusion Criteria: Previous vaccination with a investigational vaccine or a rabies vaccine Use of a investigational or non-registered drug or vaccine other than the study vaccine(s) within 30 days preceding the first study immunization, or planned use up to 30 days after the third immunization Chronic administration (defined as more than 14 days) of immunosuppressants or other immune-modifying drugs within six months prior to the first immunization. This includes any dose level of oral steroids or inhaled steroids, but not topical steroids Confirmed or suspected immunosuppressive or immunodeficient condition, including human immunodeficiency virus (HIV) infection Confirmed or suspected autoimmune disease History of allergic reactions or anaphylaxis to immunizations or to any vaccine component History of serious allergic reactions to any substance, requiring hospitalization or emergent medical care,or history of allergy to vaccines components History of splenectomy Laboratory evidence of liver disease (alanine aminotransferase [ALT] greater than 1.25 times the upper limit of normal of the testing laboratory). Laboratory evidence of renal disease (serum creatinine greater than the upper limit of normal of the testing laboratory, or more than trace protein or blood on urine dipstick testing). Laboratory evidence of hematologic disease (absolute leukocyte count 3.5-11/µL, absolute lymphocyte count 560-5280/µL, platelet count 120,000-400,000/µL, or hemoglobin 10.0-16.5g/dL). Administration of immunoglobulins and/or any blood products within the three months preceding the first study immunization or planned administration during the study period. Simultaneous participation in any other interventional clinical trial Acute or chronic pulmonary, cardiovascular, hepatic, renal or neurological condition, malnutrition, or any other clinical findings that in the opinion of the clinical investigator may increase the risk of participating in the study Other condition that in the opinion of the clinical investigator would jeopardize the safety or rights of a participant in the trial or would render the participant unable to comply with the protocol.
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Saadoul Issifou, MD, PhD
Phone
+241 7847740
Email
issadou2002@yahoo.fr
First Name & Middle Initial & Last Name or Official Title & Degree
Saadou Issifou, MD, PhD
Phone
+241 7847740
Email
issifou@lambarene.mimcom.net
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Peter Kremsner, MD, PhD
Organizational Affiliation
Medical research Unit, Albert Schweitzer Hospital
Official's Role
Study Director
Facility Information:
Facility Name
Medical Research Unit, Albert Schweitzer Hospital
City
Lambarene
Country
Gabon
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Michel Missinou, PhD
First Name & Middle Initial & Last Name & Degree
Saadou Issifou, MD, PhD

12. IPD Sharing Statement

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Safety of Recombinant Hybrid GMZ 2 [GLURP + MSP 3] Blood Stage Malaria Vaccine

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