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Trial to Evaluate the Safety and Immunogenicity of a Placental Malaria Vaccine Candidate (PRIMVAC ) in Healthy Adults (PRIMALVAC)

Primary Purpose

Malaria

Status
Completed
Phase
Phase 1
Locations
International
Study Type
Interventional
Intervention
PRIMVAC
GLA-SE
Alhydrogel
Placebo
Sponsored by
Institut National de la Santé Et de la Recherche Médicale, France
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for Malaria focused on measuring Placental malaria vaccine, Plasmodium, PRIMALVAC

Eligibility Criteria

18 Years - 35 Years (Adult)FemaleAccepts Healthy Volunteers

Inclusion criteria (FRANCE):

  • Written informed consent (must be obtained prior initiation of any study related intervention)
  • Female of age ≥18 years to ≤35 years
  • Healthy as a result of review of medical history and/or clinical examination at the time of screening and clinical judgment of the investigator
  • Available for the duration of the trial (15 months)
  • Willingness to use reliable contraceptive methods such as: birth control pills or birth control patches or vaginal ring, diaphragm, IUD (intrauterine device), condom, progestin implant or injection, or surgical sterilization (hysterectomy, bilateral oophorectomy, tubal ligation) prior to enrollment at V0 and up to 4 weeks after last vaccination (V6)
  • Volunteer reachable by phone during the entire study duration
  • Individuals affiliated to a social security regimen
  • Volunteer registered in the French Health ministry computerized file and authorized to participate in a clinical trial

Exclusion criteria (FRANCE):

  • Pregnancy ongoing as determined by a positive blood test or breastfeeding or lactation.
  • Intention to become pregnant during the trial
  • Volunteers who are not able to understand and to follow all required study procedures for the whole period of the study in the opinion of the investigator.
  • Volunteers with history of any illness that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subjects due to participation in the study.
  • Volunteers participating in any clinical trial with another investigational product 28 days prior to first study visit or intent to participate in another clinical study at any time during the conduct of this study.
  • History of psychiatric condition that may affect participation in the study (i.e. depression, anti-depressant treatment).
  • Prior receipt of an investigational malaria vaccine or any other investigational vaccine likely to impact on interpretation of the study data based on investigator's judgment.
  • Any history of malaria infection.
  • Travel to a malaria endemic region during the study period or within the six months preceding enrolment in the study.
  • Volunteer has had medical, occupational, or family problems as a result of alcohol or illicit drug use during the past 12 months.
  • History of allergic disease or reactions likely to be exacerbated by any component of the vaccine.
  • History of a serious adverse reaction to any vaccine, including Guillain-Barre Syndrome.
  • Administration or planned administration of a vaccine or gammaglobulin not foreseen by the clinical trial protocol within 30 days prior to the first immunization and up to 4 weeks after the last immunization.
  • Volunteers with a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
  • Administration of immunoglobulins and/or any blood products within the three months preceding the inclusion.
  • Any confirmed or suspected immunosuppressive or immunodeficient state; asplenia; recurrent, severe infections and chronic (more than 14 days) immunosuppressant medication within the past 3 months (inhaled and topical steroids are allowed)
  • Seropositive for hepatitis B virus surface antigen (HBsAg)
  • Seropositive for hepatitis C virus (antibodies to HCV)
  • Seropositive for human immunodeficiency virus (antibodies to HIV 1-2)
  • Any other serious chronic illness requiring hospital specialist supervision.
  • Any clinically significant abnormal finding on screening biochemistry or hematology blood tests or urinalysis
  • Symptoms, physical signs or laboratory values suggestive of systemic disorders, including infectious renal, hepatic, cardiovascular, pulmonary, cutaneous, immunodeficiency, psychiatric and other conditions, which could interfere with the interpretation of the trial results or compromise the health of the volunteers.
  • Volunteer under guardianship or legal incapacitation.

Inclusion criteria (BURKINA FASO):

  • Written informed consent (must be obtained prior initiation of any study related intervention)
  • Nulligest Female of age ≥18 years to ≤35 years
  • Healthy as a result of review of medical history and/or clinical examination at the time of screening and clinical judgment of the investigator
  • Available for the duration of the trial (15 months)
  • Willingness to use reliable contraceptive methods such as: birth control pills or birth control patches or vaginal ring, diaphragm, IUD (intrauterine device), condom, progestin implant or injection, or surgical sterilization (hysterectomy, bilateral oophorectomy, tubal ligation) prior to enrollment at V0 and up to 4 weeks after last vaccination (V6)

Exclusion criteria (BURKINA FASO):

  • Pregnancy ongoing as determined by a positive urinary test
  • Intention to become pregnant during the trial
  • Volunteers who are not able to understand and to follow all required study procedures for the whole period of the study in the opinion of the investigator.
  • Volunteers with history of any illness that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subjects due to participation in the study.
  • Volunteers participating in any clinical trial with another investigational product 28 days prior to first study visit or intent to participate in another clinical study at any time during the conduct of this study.
  • History of psychiatric condition that may affect participation in the study (i.e. depression, anti-depressant treatment).
  • Prior receipt of an investigational malaria vaccine or any other investigational vaccine likely to impact on interpretation of the trial data, based on investigator's judgment.
  • Volunteer has had medical, occupational, or family problems as a result of alcohol or illicit drug use during the past 12 months.
  • History of allergic disease or reactions likely to be exacerbated by any component of the vaccine.
  • History of a serious adverse reaction to any vaccine, including Guillain-Barre syndrome.
  • Administration or planned administration of a vaccine or gammaglobulin not foreseen by the clinical trial protocol within 30 days prior to the first immunization and up to 4 weeks after the last immunization.
  • Volunteers with a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time.
  • Administration of immunoglobulins and/or any blood products within the three months preceding the inclusion.
  • Any confirmed or suspected immunosuppressive or immunodeficient state; asplenia; recurrent, severe infections and chronic (more than 14 days) immunosuppressant medication within the past 3 months (inhaled and topical steroids are allowed).
  • Seropositive for hepatitis B virus surface antigen (HBsAg).
  • Seropositive for hepatitis C virus (antibodies to HCV).
  • Seropositive for human immunodeficiency virus (antibodies to HIV 1-2).
  • Any other serious chronic illness requiring hospital specialist supervision.
  • Any clinically significant abnormal finding on screening biochemistry or hematology blood tests or urinalysis
  • Symptoms, physical signs or laboratory values suggestive of systemic disorders, including renal, hepatic, cardiovascular, pulmonary, cutaneous, immunodeficiency, psychiatric and other conditions, which could interfere with the interpretation of the trial results or compromise the health of the volunteers.
  • Volunteer under guardianship or legal incapacitation.

Sites / Locations

  • CNRFP
  • CIC 1417

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm 7

Arm 8

Arm 9

Arm 10

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Placebo Comparator

Experimental

Experimental

Placebo Comparator

Arm Label

Group A1:Primvac 20 µg +alhydrogel

Group A2:Primvac 20 µg +GLA-SE

Group B1:Primvac 50 µg +alhydrogel

Group B2:Primvac 50 µg +GLA-SE

Group C1:Primvac 50 µg +alhydrogel

Group C2: Primvac 50 µg +GLA-SE

Group C3: Placebo

Group D1:Primvac 100 µg +alhydrogel

Group D2: Primvac 100 µg +GLA-SE

Group D3: placebo

Arm Description

Group A1: 3 European volunteers 0.5 ml intramuscular injection: 20 µg Primvac+ 0.85 mg Alhydrogel® Vaccination schedule: D0, D28 and D56

Group A2: 3 European volunteers 0.5 ml intramuscular injection:20 µg Primvac+ 2.5 µg GLA-SE Vaccination schedule: D0, D28 and D56

Group B1: 6 European volunteers 0.5 ml intramuscular injection: 50 µg Primvac+ 0.85 mg Alhydrogel® Vaccination schedule: D0, D28 and D56

Group B2: 6 European volunteers 0.5 ml intramuscular injection:50 µg Primvac+ 2.5 µg GLA-SE Vaccination schedule: D0, D28 and D56

Group C1: 10 African volunteers 0.5 ml intramuscular injection: 50 µg Primvac+ 0.85 mg Alhydrogel® Vaccination schedule: D0, D28 and D56

Group C2: 10 African volunteers 0.5 ml intramuscular injection: 50 µg Primvac+ 2.5 µg GLA-SE Vaccination schedule: D0, D28 and D56

Group C3: 5 African volunteers 0.5 ml intramuscular injection: NaCl 0.9% (placebo) Vaccination schedule: D0, D28 and D56

Group D1: 10 African volunteers 0.6 ml intramuscular injection: 100µg Primvac+ 0.85 mg Alhydrogel® Vaccination schedule: D0, D28 and D56

Group D2: 10 African volunteers 0.6 ml intramuscular injection: 100 µg Primvac+ 2.56 µg GLA-SE Vaccination schedule: D0, D28 and D56

Group D3: 5 African volunteers 0.6 ml intramuscular injection: NaCl 0.9% (placebo) Vaccination schedule: D0, D28 and D56

Outcomes

Primary Outcome Measures

Proportion of volunteers with treatment-related adverse events as assessed by FDA scale and the INYVAX EC FP7 Brighton Collaboration Foundation
Grade 3 or higher clinical or laboratory ARI and persisting at Grade 3 for > 48 hours between D0 and D35.

Secondary Outcome Measures

Proportion of volunteer with at least one Serious Adverse Event Following Immunization (SAEFI) for the entire duration of the study
clinical and biological SAEFI and SARI (Serious Adverse Reaction following Immunization (SARI) measured at any time during the volunteer follow-up
Proportion of volunteer with at least one of Adverse Event Following Immunization (AEFI) measured until 1 month post-dose 3
Immediate AEFI (within 1h following vaccination) as well as unrelated, Related or possibly related solicited and unsolicited AEFI
Proportion of volunteer with at least one Adverse Event Following Immunization (AEFI) measured between M3 and the end of the study (only phase Ia)
Immediate AEFI (within 1h following vaccination) as well as unrelated, Related or possibly related solicited and unsolicited AEFI
Variation in humoral immune response to the vaccine antigen assessed by ELISA
The level of total IgG (g/l): between D0 and the post-vaccination time points M1, M1+7D, M2, M2+7D, M3, M6 and M14
Variation in humoral immune response to the vaccine antigen assessed by ELISA
The level (g/l) of the isotypic subtypes (IgG1, IgG2, IgG3, IgG4) between D0 and the post-vaccination time point M3
Cellular immune responses to the vaccine antigen by Elispot
The median number of spots by ELISpot assay, allowing the counting of IL5 and IFNg secreting cells following an ex-vivo stimulation of PBMC with the vaccine antigen at V0, and 7 days post-dose 1 and 3 (D0- D7 and M2+7D)
Cellular immune responses to the vaccine antigen by FACS
CD19, IgD, CD27, CD38, CD24 and CD43 B lymphocytes subpopulations will be isolated from PBMC at D0 and M2+7D. The data will be expressed for each phenotype as the median percentage of subpopulations among total CD19 B lymphocytes

Full Information

First Posted
January 7, 2016
Last Updated
November 27, 2019
Sponsor
Institut National de la Santé Et de la Recherche Médicale, France
Collaborators
EVI Industries, Inc., Recherche Clinique Paris Descartes Necker Cochin Sainte Anne, Centre national de recherche et de formation sur le paludisme, EUCLID Clinical Trial Platform
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1. Study Identification

Unique Protocol Identification Number
NCT02658253
Brief Title
Trial to Evaluate the Safety and Immunogenicity of a Placental Malaria Vaccine Candidate (PRIMVAC ) in Healthy Adults
Acronym
PRIMALVAC
Official Title
Phase Ia/Ib, Randomized, Double Blinded, Dose Escalation Trial to Evaluate the Safety and Immunogenicity in Healthy European and Burkinabe Adults of a Placental Malaria Vaccine Candidate (PRIMVAC) Formulated With Alhydrogel ® or GLA-SE
Study Type
Interventional

2. Study Status

Record Verification Date
May 2019
Overall Recruitment Status
Completed
Study Start Date
January 2016 (undefined)
Primary Completion Date
September 19, 2018 (Actual)
Study Completion Date
February 21, 2019 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Institut National de la Santé Et de la Recherche Médicale, France
Collaborators
EVI Industries, Inc., Recherche Clinique Paris Descartes Necker Cochin Sainte Anne, Centre national de recherche et de formation sur le paludisme, EUCLID Clinical Trial Platform

4. Oversight

Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The primary objective of the study is to evaluate the safety of 3 different dosages (20µg - 50µg and 100µg) of a placental malaria vaccine candidate (PRIMVAC vaccine) adjuvanted either with Alhydrogel® or GLA-SE, and administered at D0, D28 and D56 in healthy European and Burkinabe adults. The safety and the tolerability of the vaccine will be assessed on the rate of solicited and unsolicited events/reactions The safety profile will included local and systemic reactions/events as well as the biological safety, based on a clinically significant change of the baseline value of the main biological criteria
Detailed Description
The project aims are: Primary objective is to evaluate the safety of 3 different dosages (20µg - 50µg and 100µg) of the PRIMVAC vaccine adjuvanted either with Alhydrogel® or GLA-SE, and administered at D0, D28 and D56 in healthy European and Burkinabe adults. Secondary objectives are to assess: the humoral immune response to the PRIMVAC vaccine antigen (VAR2CSA) by measuring the variation in the level of total IgG and the level of the isotypic subtypes capable of recognizing the native antigen. the cellular immune response by measuring: the number of T cell secreting IL5 and IFNg following an ex-vivo stimulation with the vaccine antigen the B lymphocyte phenotypes isolated from PBMC Exploratory objectives are: To explore the quality of the humoral immune response by the measure of the capability of the antibodies specific to the vaccine antigen to: Cross-react with different VAR2CSA variants expressed on the surface of erythrocytes infected by various strains of Plasmodium falciparum, Inhibit interactions between parasitized erythrocytes expressing different VAR2CSA variants and Chondroitin Sulfate A (receptor involved in placental sequestration), Promote opsonic phagocytosis of parasitized erythrocytes with various strains of Plasmodium falciparum expressing different VAR2CSA variants To explore the quality of the cellular immune response induced by the vaccine antigen by the quantitation of a large panel of cytokines in the ELISpot supernatants.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Malaria
Keywords
Placental malaria vaccine, Plasmodium, PRIMALVAC

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 1
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
68 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Group A1:Primvac 20 µg +alhydrogel
Arm Type
Experimental
Arm Description
Group A1: 3 European volunteers 0.5 ml intramuscular injection: 20 µg Primvac+ 0.85 mg Alhydrogel® Vaccination schedule: D0, D28 and D56
Arm Title
Group A2:Primvac 20 µg +GLA-SE
Arm Type
Experimental
Arm Description
Group A2: 3 European volunteers 0.5 ml intramuscular injection:20 µg Primvac+ 2.5 µg GLA-SE Vaccination schedule: D0, D28 and D56
Arm Title
Group B1:Primvac 50 µg +alhydrogel
Arm Type
Experimental
Arm Description
Group B1: 6 European volunteers 0.5 ml intramuscular injection: 50 µg Primvac+ 0.85 mg Alhydrogel® Vaccination schedule: D0, D28 and D56
Arm Title
Group B2:Primvac 50 µg +GLA-SE
Arm Type
Experimental
Arm Description
Group B2: 6 European volunteers 0.5 ml intramuscular injection:50 µg Primvac+ 2.5 µg GLA-SE Vaccination schedule: D0, D28 and D56
Arm Title
Group C1:Primvac 50 µg +alhydrogel
Arm Type
Experimental
Arm Description
Group C1: 10 African volunteers 0.5 ml intramuscular injection: 50 µg Primvac+ 0.85 mg Alhydrogel® Vaccination schedule: D0, D28 and D56
Arm Title
Group C2: Primvac 50 µg +GLA-SE
Arm Type
Experimental
Arm Description
Group C2: 10 African volunteers 0.5 ml intramuscular injection: 50 µg Primvac+ 2.5 µg GLA-SE Vaccination schedule: D0, D28 and D56
Arm Title
Group C3: Placebo
Arm Type
Placebo Comparator
Arm Description
Group C3: 5 African volunteers 0.5 ml intramuscular injection: NaCl 0.9% (placebo) Vaccination schedule: D0, D28 and D56
Arm Title
Group D1:Primvac 100 µg +alhydrogel
Arm Type
Experimental
Arm Description
Group D1: 10 African volunteers 0.6 ml intramuscular injection: 100µg Primvac+ 0.85 mg Alhydrogel® Vaccination schedule: D0, D28 and D56
Arm Title
Group D2: Primvac 100 µg +GLA-SE
Arm Type
Experimental
Arm Description
Group D2: 10 African volunteers 0.6 ml intramuscular injection: 100 µg Primvac+ 2.56 µg GLA-SE Vaccination schedule: D0, D28 and D56
Arm Title
Group D3: placebo
Arm Type
Placebo Comparator
Arm Description
Group D3: 5 African volunteers 0.6 ml intramuscular injection: NaCl 0.9% (placebo) Vaccination schedule: D0, D28 and D56
Intervention Type
Biological
Intervention Name(s)
PRIMVAC
Intervention Description
3 different dosages of VAR2CSA protein (20µg - 50µg and 100µg)
Intervention Type
Biological
Intervention Name(s)
GLA-SE
Intervention Description
2.56 µg of GLA content
Intervention Type
Biological
Intervention Name(s)
Alhydrogel
Intervention Description
0.85 mg og Aluminium content
Intervention Type
Biological
Intervention Name(s)
Placebo
Intervention Description
0.9% Na cl
Primary Outcome Measure Information:
Title
Proportion of volunteers with treatment-related adverse events as assessed by FDA scale and the INYVAX EC FP7 Brighton Collaboration Foundation
Description
Grade 3 or higher clinical or laboratory ARI and persisting at Grade 3 for > 48 hours between D0 and D35.
Time Frame
35 days
Secondary Outcome Measure Information:
Title
Proportion of volunteer with at least one Serious Adverse Event Following Immunization (SAEFI) for the entire duration of the study
Description
clinical and biological SAEFI and SARI (Serious Adverse Reaction following Immunization (SARI) measured at any time during the volunteer follow-up
Time Frame
14 months
Title
Proportion of volunteer with at least one of Adverse Event Following Immunization (AEFI) measured until 1 month post-dose 3
Description
Immediate AEFI (within 1h following vaccination) as well as unrelated, Related or possibly related solicited and unsolicited AEFI
Time Frame
3 months
Title
Proportion of volunteer with at least one Adverse Event Following Immunization (AEFI) measured between M3 and the end of the study (only phase Ia)
Description
Immediate AEFI (within 1h following vaccination) as well as unrelated, Related or possibly related solicited and unsolicited AEFI
Time Frame
11 months
Title
Variation in humoral immune response to the vaccine antigen assessed by ELISA
Description
The level of total IgG (g/l): between D0 and the post-vaccination time points M1, M1+7D, M2, M2+7D, M3, M6 and M14
Time Frame
14 months
Title
Variation in humoral immune response to the vaccine antigen assessed by ELISA
Description
The level (g/l) of the isotypic subtypes (IgG1, IgG2, IgG3, IgG4) between D0 and the post-vaccination time point M3
Time Frame
3 months
Title
Cellular immune responses to the vaccine antigen by Elispot
Description
The median number of spots by ELISpot assay, allowing the counting of IL5 and IFNg secreting cells following an ex-vivo stimulation of PBMC with the vaccine antigen at V0, and 7 days post-dose 1 and 3 (D0- D7 and M2+7D)
Time Frame
63 days
Title
Cellular immune responses to the vaccine antigen by FACS
Description
CD19, IgD, CD27, CD38, CD24 and CD43 B lymphocytes subpopulations will be isolated from PBMC at D0 and M2+7D. The data will be expressed for each phenotype as the median percentage of subpopulations among total CD19 B lymphocytes
Time Frame
63 days
Other Pre-specified Outcome Measures:
Title
Quality of the humoral immune responses
Description
Will be assessed by measuring the capability of the specific vaccine antigen plasma IgGs to: Cross-react with different VAR2CSA variants expressed on the surface of erythrocytes parasitized by various strains of Plasmodium falciparum by flow cytometry. Inhibit interactions between parasitized erythrocytes expressing different VAR2CSA variants and Chondroitin Sulfate A in static and flow conditions Promote opsonic phagocytosis of parasitized erythrocytes with various strains of Plasmodium falciparum expressing different VAR2CSA variants, using the THP1 cell line. Ingestion of fluorescently labeled parasitized erythrocytes by THP1 cells will be assessed by flow cytometry.
Time Frame
3 months
Title
Quality of the cellular immune response by the Multiplex technology
Description
Will be assessed by measuring the quantitation of a large panel of cytokines in ELISpot supernatants will be performed at D0- D7 and M2+7D. The difference of the cytokines concentrations (expressed as MFI) between the pre-vaccination samples and the samples collected at D7 and M2+7D will be calculated.
Time Frame
63 days

10. Eligibility

Sex
Female
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
35 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion criteria (FRANCE): Written informed consent (must be obtained prior initiation of any study related intervention) Female of age ≥18 years to ≤35 years Healthy as a result of review of medical history and/or clinical examination at the time of screening and clinical judgment of the investigator Available for the duration of the trial (15 months) Willingness to use reliable contraceptive methods such as: birth control pills or birth control patches or vaginal ring, diaphragm, IUD (intrauterine device), condom, progestin implant or injection, or surgical sterilization (hysterectomy, bilateral oophorectomy, tubal ligation) prior to enrollment at V0 and up to 4 weeks after last vaccination (V6) Volunteer reachable by phone during the entire study duration Individuals affiliated to a social security regimen Volunteer registered in the French Health ministry computerized file and authorized to participate in a clinical trial Exclusion criteria (FRANCE): Pregnancy ongoing as determined by a positive blood test or breastfeeding or lactation. Intention to become pregnant during the trial Volunteers who are not able to understand and to follow all required study procedures for the whole period of the study in the opinion of the investigator. Volunteers with history of any illness that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subjects due to participation in the study. Volunteers participating in any clinical trial with another investigational product 28 days prior to first study visit or intent to participate in another clinical study at any time during the conduct of this study. History of psychiatric condition that may affect participation in the study (i.e. depression, anti-depressant treatment). Prior receipt of an investigational malaria vaccine or any other investigational vaccine likely to impact on interpretation of the study data based on investigator's judgment. Any history of malaria infection. Travel to a malaria endemic region during the study period or within the six months preceding enrolment in the study. Volunteer has had medical, occupational, or family problems as a result of alcohol or illicit drug use during the past 12 months. History of allergic disease or reactions likely to be exacerbated by any component of the vaccine. History of a serious adverse reaction to any vaccine, including Guillain-Barre Syndrome. Administration or planned administration of a vaccine or gammaglobulin not foreseen by the clinical trial protocol within 30 days prior to the first immunization and up to 4 weeks after the last immunization. Volunteers with a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time. Administration of immunoglobulins and/or any blood products within the three months preceding the inclusion. Any confirmed or suspected immunosuppressive or immunodeficient state; asplenia; recurrent, severe infections and chronic (more than 14 days) immunosuppressant medication within the past 3 months (inhaled and topical steroids are allowed) Seropositive for hepatitis B virus surface antigen (HBsAg) Seropositive for hepatitis C virus (antibodies to HCV) Seropositive for human immunodeficiency virus (antibodies to HIV 1-2) Any other serious chronic illness requiring hospital specialist supervision. Any clinically significant abnormal finding on screening biochemistry or hematology blood tests or urinalysis Symptoms, physical signs or laboratory values suggestive of systemic disorders, including infectious renal, hepatic, cardiovascular, pulmonary, cutaneous, immunodeficiency, psychiatric and other conditions, which could interfere with the interpretation of the trial results or compromise the health of the volunteers. Volunteer under guardianship or legal incapacitation. Inclusion criteria (BURKINA FASO): Written informed consent (must be obtained prior initiation of any study related intervention) Nulligest Female of age ≥18 years to ≤35 years Healthy as a result of review of medical history and/or clinical examination at the time of screening and clinical judgment of the investigator Available for the duration of the trial (15 months) Willingness to use reliable contraceptive methods such as: birth control pills or birth control patches or vaginal ring, diaphragm, IUD (intrauterine device), condom, progestin implant or injection, or surgical sterilization (hysterectomy, bilateral oophorectomy, tubal ligation) prior to enrollment at V0 and up to 4 weeks after last vaccination (V6) Exclusion criteria (BURKINA FASO): Pregnancy ongoing as determined by a positive urinary test Intention to become pregnant during the trial Volunteers who are not able to understand and to follow all required study procedures for the whole period of the study in the opinion of the investigator. Volunteers with history of any illness that, in the opinion of the investigator, might interfere with the results of the study or pose additional risk to the subjects due to participation in the study. Volunteers participating in any clinical trial with another investigational product 28 days prior to first study visit or intent to participate in another clinical study at any time during the conduct of this study. History of psychiatric condition that may affect participation in the study (i.e. depression, anti-depressant treatment). Prior receipt of an investigational malaria vaccine or any other investigational vaccine likely to impact on interpretation of the trial data, based on investigator's judgment. Volunteer has had medical, occupational, or family problems as a result of alcohol or illicit drug use during the past 12 months. History of allergic disease or reactions likely to be exacerbated by any component of the vaccine. History of a serious adverse reaction to any vaccine, including Guillain-Barre syndrome. Administration or planned administration of a vaccine or gammaglobulin not foreseen by the clinical trial protocol within 30 days prior to the first immunization and up to 4 weeks after the last immunization. Volunteers with a known bleeding diathesis, or any condition that may be associated with a prolonged bleeding time. Administration of immunoglobulins and/or any blood products within the three months preceding the inclusion. Any confirmed or suspected immunosuppressive or immunodeficient state; asplenia; recurrent, severe infections and chronic (more than 14 days) immunosuppressant medication within the past 3 months (inhaled and topical steroids are allowed). Seropositive for hepatitis B virus surface antigen (HBsAg). Seropositive for hepatitis C virus (antibodies to HCV). Seropositive for human immunodeficiency virus (antibodies to HIV 1-2). Any other serious chronic illness requiring hospital specialist supervision. Any clinically significant abnormal finding on screening biochemistry or hematology blood tests or urinalysis Symptoms, physical signs or laboratory values suggestive of systemic disorders, including renal, hepatic, cardiovascular, pulmonary, cutaneous, immunodeficiency, psychiatric and other conditions, which could interfere with the interpretation of the trial results or compromise the health of the volunteers. Volunteer under guardianship or legal incapacitation.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Odile Launay, Professor
Organizational Affiliation
Institut National de la Santé Et de la Recherche Médicale, France
Official's Role
Study Chair
First Name & Middle Initial & Last Name & Degree
Benoit GAMAIN, Dr
Organizational Affiliation
Institut National de la Santé Et de la Recherche Médicale, France
Official's Role
Study Director
First Name & Middle Initial & Last Name & Degree
Sodiomon SIRIMA, Dr
Organizational Affiliation
Centre national de recherche et de formation sur le paludisme
Official's Role
Study Chair
Facility Information:
Facility Name
CNRFP
City
Ouagadougou
ZIP/Postal Code
BP 2208
Country
Burkina Faso
Facility Name
CIC 1417
City
Paris
ZIP/Postal Code
75679
Country
France

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
33717176
Citation
Gamain B, Chene A, Viebig NK, Tuikue Ndam N, Nielsen MA. Progress and Insights Toward an Effective Placental Malaria Vaccine. Front Immunol. 2021 Feb 25;12:634508. doi: 10.3389/fimmu.2021.634508. eCollection 2021.
Results Reference
derived
PubMed Identifier
32032566
Citation
Sirima SB, Richert L, Chene A, Konate AT, Campion C, Dechavanne S, Semblat JP, Benhamouda N, Bahuaud M, Loulergue P, Ouedraogo A, Nebie I, Kabore M, Kargougou D, Barry A, Ouattara SM, Boilet V, Allais F, Roguet G, Havelange N, Lopez-Perez E, Kuppers A, Konate E, Roussillon C, Kante M, Belarbi L, Diarra A, Henry N, Soulama I, Ouedraogo A, Esperou H, Leroy O, Batteux F, Tartour E, Viebig NK, Thiebaut R, Launay O, Gamain B. PRIMVAC vaccine adjuvanted with Alhydrogel or GLA-SE to prevent placental malaria: a first-in-human, randomised, double-blind, placebo-controlled study. Lancet Infect Dis. 2020 May;20(5):585-597. doi: 10.1016/S1473-3099(19)30739-X. Epub 2020 Feb 4.
Results Reference
derived

Learn more about this trial

Trial to Evaluate the Safety and Immunogenicity of a Placental Malaria Vaccine Candidate (PRIMVAC ) in Healthy Adults

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