Dengue Clinical Trial
Official title:
Efficacy and Safety of a Novel Tetravalent Dengue Vaccine in Healthy Children and Adolescents Aged 9 to 16 Years in Latin America
Verified date | March 2022 |
Source | Sanofi |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Interventional |
The aim of the study was to assess the efficacy of Sanofi Pasteur's CYD dengue vaccine in preventing symptomatic virologically-confirmed dengue cases for dengue-endemic areas of Latin America. Primary Objective: To assess the efficacy of CYD dengue vaccine after 3 vaccinations at 0, 6, and 12 months in preventing symptomatic virologically-confirmed dengue (VCD) cases, regardless of the severity, due to any of the four serotypes in children and adolescents aged 9 to 16 years at the time of inclusion. Secondary Objectives: - To describe the efficacy of CYD dengue vaccine in preventing symptomatic VCD cases after the third dose to the end of the Active Phase, after at least 1 dose, and after 2 doses. - To describe the occurrence of hospitalized VCD cases and the occurrence of severe (clinically severe or as per World Health Organization (WHO) criteria) VCD cases, throughout the Surveillance Expansion Period (SEP) and throughout the trial (from Day 0 until the end of the study). - To describe the antibody response to each dengue serotype after Dose 2, after Dose 3, and 1 and 5 years after Dose 3. - To describe the occurrence of serious adverse events (SAEs), including SAEs of special interest in all participants throughout the trial period.
Status | Completed |
Enrollment | 20869 |
Est. completion date | March 5, 2018 |
Est. primary completion date | November 2014 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | All |
Age group | 9 Years to 16 Years |
Eligibility | Inclusion Criteria: - Aged 9 to 16 years on the day of inclusion and resident of the site zone - Participant in good health, based on medical history and physical examination - Assent form or informed consent form has been signed and dated by the participant (based on local regulations), and informed consent form has been signed and dated by the parent(s) or another legally acceptable representative (and by an independent witness if required by local regulations) - Participant was able to attend all scheduled visits and comply with all trial procedures. Exclusion Criteria: - Participant was pregnant, or lactating, or of childbearing potential (to be considered of non-childbearing potential, a female must be pre-menarche for at least 1 year, surgically sterile, or using an effective method of contraception or abstinence from at least 4 weeks prior to the first vaccination until at least 4 weeks after the last vaccination). - Participation in another clinical trial investigating a vaccine, drug, medical device, or a medical procedure in the 4 weeks preceding the first trial vaccination - Planned participation in another clinical trial during the present trial period - Self-reported or suspected congenital or acquired immunodeficiency; or receipt of immunosuppressive therapy such as anti-cancer chemotherapy or radiation therapy within the preceding 6 months; or long-term systemic corticosteroids therapy (prednisone or equivalent for more than 2 consecutive weeks within the past 3 months) - Self-reported seropositivity for Human Immunodeficiency Virus (HIV) infection - Self-reported systemic hypersensitivity to any of the vaccine components, or history of a life-threatening reaction to the vaccine used in the trial or to a vaccine containing any of the same substances - Chronic illness that, in the opinion of the Investigator, is at a stage where it might interfere with trial conduct or completion - Receipt of blood or blood-derived products in the past 3 months, which might interfere with assessment of the immune response - Planned receipt of any vaccine in the 4 weeks following any trial vaccination - Deprived of freedom by administrative or court order, or in an emergency setting, or hospitalized involuntarily - Current alcohol abuse or drug addiction that may interfere with the participant's ability to comply with trial procedures - Identified as a site employee of the Investigator or study center, with direct involvement in the proposed study or other studies under the direction of that Investigator or study center, as well as a family member (i.e., immediate, husband, wife and their children, adopted or natural) of the site employees or the Investigator. |
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Sanofi Pasteur, a Sanofi Company |
Brazil, Colombia, Honduras, Mexico, Puerto Rico,
Arredondo-García JL, Hadinegoro SR, Reynales H, Chua MN, Rivera Medina DM, Chotpitayasunondh T, Tran NH, Deseda CC, Wirawan DN, Cortés Supelano M, Frago C, Langevin E, Coronel D, Laot T, Perroud AP, Sanchez L, Bonaparte M, Limkittikul K, Chansinghakul D, — View Citation
Hadinegoro SR, Arredondo-García JL, Capeding MR, Deseda C, Chotpitayasunondh T, Dietze R, Muhammad Ismail HI, Reynales H, Limkittikul K, Rivera-Medina DM, Tran HN, Bouckenooghe A, Chansinghakul D, Cortés M, Fanouillere K, Forrat R, Frago C, Gailhardou S, — View Citation
L'Azou M, Moureau A, Sarti E, Nealon J, Zambrano B, Wartel TA, Villar L, Capeding MR, Ochiai RL; CYD14 Primary Study Group; CYD15 Primary Study Group. Symptomatic Dengue in Children in 10 Asian and Latin American Countries. N Engl J Med. 2016 Mar 24;374(1 — View Citation
Sridhar S, Luedtke A, Langevin E, Zhu M, Bonaparte M, Machabert T, Savarino S, Zambrano B, Moureau A, Khromava A, Moodie Z, Westling T, Mascareñas C, Frago C, Cortés M, Chansinghakul D, Noriega F, Bouckenooghe A, Chen J, Ng SP, Gilbert PB, Gurunathan S, D — View Citation
Villar L, Dayan GH, Arredondo-García JL, Rivera DM, Cunha R, Deseda C, Reynales H, Costa MS, Morales-Ramírez JO, Carrasquilla G, Rey LC, Dietze R, Luz K, Rivas E, Miranda Montoya MC, Cortés Supelano M, Zambrano B, Langevin E, Boaz M, Tornieporth N, Savill — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Number of Symptomatic Virologically Confirmed Dengue (VCD) Cases Due to Any Serotype During the Active Phase Post-dose 3 Following Injection With Either CYD Dengue Vaccine or a Placebo | Symptomatic VCD cases were defined as occurrence of acute febrile illness (temperature >=38°C on at least 2 consecutive days) and confirmation of dengue virus infection by dengue reverse transcriptase polymerase chain reaction (RT-PCR) and/or dengue non-structural (NS) protein 1 antigen enzyme-linked immunosorbent assay (ELISA). Vaccine efficacy was defined as 1 minus the ratio of density incidence due to any serotype after at least 1 dose in the CYD Dengue Vaccine Group over the density incidence of the Placebo Group. | 28 days and up to 13 months post-injection 3 | |
Secondary | Number of Symptomatic VCD Cases Due to Any Serotype During the Active Phase Following Injection With Either CYD Dengue Vaccine or a Placebo | Symptomatic VCD cases were defined as occurrence of acute febrile illness (temperature >=38°C on at least 2 consecutive days) and confirmation of dengue virus infection by dengue RT-PCR and/or dengue NS 1 ELISA. Vaccine efficacy was defined as 1 minus the ratio of density incidence due to any serotype after at least 1 dose in the CYD Dengue Vaccine Group over the density incidence of the Placebo Group. | Day 0 up to 13 months post-injection 3 | |
Secondary | Number of Symptomatic VCD Cases Due to Any Serotype Occurring 28 Days Post-dose 1 Following Injection With Either CYD Dengue Vaccine or a Placebo | Symptomatic VCD cases were defined as occurrence of acute febrile illness (temperature >= 38°C on at least 2 consecutive days) and confirmation of dengue virus infection by dengue RT-PCR and/or dengue NS 1 ELISA. Vaccine efficacy was defined as 1 minus the ratio of density incidence due to any serotype after at least 1 dose in the CYD Dengue Vaccine Group over the density incidence of the Placebo Group. | 28 days post-injection 1 and up to 13 months post-injection 3 | |
Secondary | Number of Symptomatic VCD Cases Due to Any Serotype Post-dose 2 Following Injection With Either CYD Dengue Vaccine or a Placebo | Symptomatic VCD cases were defined as occurrence of acute febrile illness (temperature >= 38°C on at least 2 consecutive days) and confirmation of dengue virus infection by dengue RT-PCR and/or dengue NS 1 ELISA. Vaccine efficacy was defined as 1 minus the ratio of density incidence due to any serotype after at least 1 dose in the CYD Dengue Vaccine Group over the density incidence of the Placebo Group. | 28 days post-injection 2 and up to 13 months post-injection 3 | |
Secondary | Number of Symptomatic VCD Cases Meeting World Health Organization (WHO) Criteria Throughout the Trial Due to Any Serotype Following Injection With Either CYD Dengue Vaccine or a Placebo | Dengue hemorrhagic fever (DHF) cases were defined as number of participants with at least one symptomatic VCD episode meeting the 1997 WHO criteria. (a) Fever: acute onset, high (>= 38°C) and continuous, lasting 2 to 7 days and (b) any of the pre-listed hemorrhagic manifestations and laboratory findings of thrombocytopenia (platelet <=100 x 109/L) and plasma leakage as shown by hemoconcentration (hematocrit increased by 20% or more) or pleural effusion (seen on CXR) and/or ascites and/ or hypoalbuminemia. The first two clinical criteria plus thrombocytopenia and signs of plasma leakage are enough to establish a clinical diagnosis of DHF. DHF was graded as follows: Grade I: Fever accompanied by non-specific constitutional symptoms; the only hemorrhagic manifestation is a positive tourniquet test; Grade II: Spontaneous bleeding in addition to the manifestations of Grade I participants, usually in the form of skin and/or other hemorrhage. | Day 0 to the end of study (up to 72 months) | |
Secondary | Number of Symptomatic VCD Cases Meeting WHO Criteria During the Surveillance Expansion Period Due to Any Serotype Following Injection With Either CYD Dengue Vaccine or a Placebo | The 1997 WHO criteria are: a) Fever: acute onset, high (>= 38°C) and continuous, for 2 to 7 days and (b) any of the following: thrombocytopenia (platelet <=100 x 109/L) and plasma leakage as shown by hematocrit increased by 20% or more or pleural effusion and/or ascites and/or hypoalbuminemia. The first two clinical criteria plus thrombocytopenia and signs of plasma leakage are enough to establish diagnosis of DHF. DHF was graded as follows: Grade I: Fever accompanied by non-specific constitutional symptoms; the only hemorrhagic manifestation is a positive tourniquet test; Grade II: Spontaneous bleeding in addition to the manifestations of Grade I participant, usually in the form of skin and/or other hemorrhages; Grade III: Circulatory failure manifested by rapid and weak pulse, narrowing of pulse pressure (20 mmHg or less) or hypotension, with the presence of cold clammy skin and restlessness; and Grade IV: Profound shock with undetectable blood pressure and pulse. | From consent to participate in the Surveillance Expansion Period to the end of study (up to 72 months) | |
Secondary | Number of Hospitalized VCD Cases Throughout the Trial Due to Any Serotype Following Injection With Either CYD Dengue Vaccine or a Placebo | Hospitalized VCD cases were defined as VCD confirmed by dengue RT-PCR and/or dengue NS 1 ELISA in participants with acute febrile illness (temperature >=38°C on at least 2 consecutive days) requiring hospitalization. | Day 0 up to the end of study (up to 72 months) | |
Secondary | Number of Hospitalized VCD Cases During the Surveillance Expansion Period Due to Any Serotype Following Injection With Either CYD Dengue Vaccine or a Placebo | Hospitalized VCD cases were defined as VCD confirmed by dengue RT-PCR and/or dengue NS 1 ELISA in participants with acute febrile illness (temperature >=38°C on at least 2 consecutive days) requiring hospitalization. | From consent to participate in the Surveillance Expansion Period to end of the study (up to 72 months) | |
Secondary | Number of Clinically Severe VCD Cases Throughout the Trial Due to Any Serotype Following Injection With Either CYD Dengue Vaccine or a Placebo | The severity of VCD cases was assessed by an Independent Data monitoring Committee (IDMC) based on a medical review of cases and any of the following criteria:1) Platelet count <=100000 /µl and bleeding (tourniquet, petechiae or any bleeding) plus plasma leakage 2) Shock (pulse pressure <= 20 mmHg in a child, or hypotension [<= 90 mmHg] with tachycardia, weak pulse and poor perfusion) 3) Bleeding requiring blood transfusion 4) Encephalopathy i.e. unconsciousness or poor conscious state or fitting not attributable to simple febrile convulsion or focal neurological signs. Poor conscious state or unconsciousness must be supported by Glasgow Coma Scale (GCS) score 5) Liver impairment (AST >1000 IU/L or prothrombin time [PT] International normalized ratio [INR] >1.5) excluding other causes of viral hepatitis 6) Impaired kidney function (serum creatinine >= 1.5 mg/dL) 7) Myocarditis, pericarditis or clinical heart failure supported by CXR, echocardiography, ECG or cardiac enzymes. | Day 0 to the end of study (up to 72 months) | |
Secondary | Number of Clinically Severe VCD Cases During the Surveillance Expansion Period Due to Any Serotype Following Injection With Either CYD Dengue Vaccine or a Placebo | The severity of VCD cases was assessed by an IDMC based on a medical review of cases and any of the following criteria:-1) Platelet count <=100000 /µl and bleeding (tourniquet, petechiae or any bleeding) plus plasma leakage 2) Shock (pulse pressure <= 20 mmHg in a child, or hypotension [<= 90 mmHg] with tachycardia, weak pulse and poor perfusion) 3) Bleeding requiring blood transfusion 4) Encephalopathy i.e. Unconsciousness or poor conscious state or fitting not attributable to simple febrile convulsion or focal neurological signs. Poor conscious state or unconsciousness must be supported by GCS score 5) Liver impairment (AST >1000 IU/L or PT INR >1.5) excluding other causes of viral hepatitis 6) Impaired kidney function (serum creatinine >= 1.5 mg/dL) 7) Myocarditis, pericarditis or clinical heart failure supported by CXR, echocardiography, ECG or cardiac enzymes. | From consent to participate in the Surveillance Expansion Period to the end of study (up to 72 months) | |
Secondary | Percentage of Participants With Antibody Titers >=10 1/Dil Against Each Dengue Virus Serotype Before and Following Injection (Inj.) With CYD Dengue Vaccine or Placebo | Dengue neutralizing antibody levels against each of the 4 dengue virus serotypes (parental strains) were measured by the plaque reduction neutralization test in a pre-defined subset of participants. | Pre-injection 1, 28 days post Injections 2 and 3, 13 months (Visit [V] 07) and 60 months (Visit [V] 12) post-injection 3 | |
Secondary | Geometric Mean Titers of Antibodies Against Each Dengue Virus Serotype Before and Following Injection With Either CYD Dengue Tetravalent Vaccine or a Placebo | Geometric mean titers for each of the 4 dengue virus serotypes (parental strains) were assessed using the plaque reduction neutralization test in a pre-defined subset of participants. | Pre-injection 1, 28 days post Injections 2 and 3, 13 months (V 07) and 60 months (V 12) post-injection 3 | |
Secondary | Number of Participants With Solicited Injection Site Reactions Following Any and Each Injection With Either CYD Dengue Vaccine or a Placebo | Solicited injection site reactions: Pain, Erythema, and Swelling. Grade 3 reactions (9-11 years): Pain: incapacitating, unable to perform usual activities; Erythema and Swelling, >= 50 mm. Grade 3 Solicited injection site reactions (12-16 years): Pain: significant, prevents daily activity; Erythema and Swelling, >100 mm. | Within 7 days after each and any injection | |
Secondary | Number of Participants With Solicited Systemic Reactions Following Any and Each Injection With Either CYD Dengue Vaccine or a Placebo | Solicited systemic reactions: Fever (Temperature), Headache, Malaise, Myalgia, and Asthenia. Grade 3 reactions: Fever: >= 39°C; Headache, Malaise, Myalgia, and Asthenia: significant, prevents daily activity. | Within 14 days after each and any injection |
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