Efficacy and Long-Term Safety of a Dengue Vaccine in Regions of Endemic Disease

BACKGROUND: A candidate tetravalent dengue vaccine is being assessed in three clinical trials involving more than 35,000 children between the ages of 2 and 16 years in Asian-Pacific and Latin American countries. We report the results of long-term follow-up interim analyses and integrated efficacy analyses.

METHODS: We are assessing the incidence of hospitalization for virologically confirmed dengue as a surrogate safety end point during follow-up in years 3 to 6 of two phase 3 trials, CYD14 and CYD15, and a phase 2b trial, CYD23/57. We estimated vaccine efficacy using pooled data from the first 25 months of CYD14 and CYD15.

RESULTS: Follow-up data were available for 10,165 of 10,275 participants (99%) in CYD14 and 19,898 of 20,869 participants (95%) in CYD15. Data were available for 3203 of the 4002 participants (80%) in the CYD23 trial included in CYD57. During year 3 in the CYD14, CYD15, and CYD57 trials combined, hospitalization for virologically confirmed dengue occurred in 65 of 22,177 participants in the vaccine group and 39 of 11,089 participants in the control group. Pooled relative risks of hospitalization for dengue were 0.84 (95% confidence interval [CI], 0.56 to 1.24) among all participants, 1.58 (95% CI, 0.83 to 3.02) among those under the age of 9 years, and 0.50 (95% CI, 0.29 to 0.86) among those 9 years of age or older. During year 3, hospitalization for severe dengue, as defined by the independent data monitoring committee criteria, occurred in 18 of 22,177 participants in the vaccine group and 6 of 11,089 participants in the control group. Pooled rates of efficacy for symptomatic dengue during the first 25 months were 60.3% (95% CI, 55.7 to 64.5) for all participants, 65.6% (95% CI, 60.7 to 69.9) for those 9 years of age or older, and 44.6% (95% CI, 31.6 to 55.0) for those younger than 9 years of age.

CONCLUSIONS: Although the unexplained higher incidence of hospitalization for dengue in year 3 among children younger than 9 years of age needs to be carefully monitored during long-term follow-up, the risk among children 2 to 16 years of age was lower in the vaccine group than in the control group. (Funded by Sanofi Pasteur; ClinicalTrials.gov numbers, NCT00842530, NCT01983553, NCT01373281, and NCT01374516.).

Errataetall:

CommentIn: N Engl J Med. 2015 Sep 24;373(13):1263-4. - PMID 26214040

Medienart:

E-Artikel

Erscheinungsjahr:

2015

Erschienen:

2015

Enthalten in:

Zur Gesamtaufnahme - volume:373

Enthalten in:

The New England journal of medicine - 373(2015), 13 vom: 24. Sept., Seite 1195-206

Sprache:

Englisch

Beteiligte Personen:

Hadinegoro, Sri Rezeki [VerfasserIn]
Arredondo-García, Jose Luis [VerfasserIn]
Capeding, Maria Rosario [VerfasserIn]
Deseda, Carmen [VerfasserIn]
Chotpitayasunondh, Tawee [VerfasserIn]
Dietze, Reynaldo [VerfasserIn]
Muhammad Ismail, H I Hj [VerfasserIn]
Reynales, Humberto [VerfasserIn]
Limkittikul, Kriengsak [VerfasserIn]
Rivera-Medina, Doris Maribel [VerfasserIn]
Tran, Huu Ngoc [VerfasserIn]
Bouckenooghe, Alain [VerfasserIn]
Chansinghakul, Danaya [VerfasserIn]
Cortés, Margarita [VerfasserIn]
Fanouillere, Karen [VerfasserIn]
Forrat, Remi [VerfasserIn]
Frago, Carina [VerfasserIn]
Gailhardou, Sophia [VerfasserIn]
Jackson, Nicholas [VerfasserIn]
Noriega, Fernando [VerfasserIn]
Plennevaux, Eric [VerfasserIn]
Wartel, T Anh [VerfasserIn]
Zambrano, Betzana [VerfasserIn]
Saville, Melanie [VerfasserIn]
CYD-TDV Dengue Vaccine Working Group [VerfasserIn]
Laot, Thelma [Sonstige Person]
Menezes, Josemund [Sonstige Person]
Perroud, Ana Paula [Sonstige Person]
Rivas, Enrique [Sonstige Person]
Coronel, Diana [Sonstige Person]
Dayan, Gustavo [Sonstige Person]
Van Der Vliet, Diane [Sonstige Person]
Moureau, Annick [Sonstige Person]
Dakowski, Claire [Sonstige Person]
Bonaparte, Matthew [Sonstige Person]
Tornieporth, Nadia [Sonstige Person]
Sabchareon, Arunee [Sonstige Person]
Sirivichayakul, Chukiat [Sonstige Person]
Pengsaa, Krisana [Sonstige Person]
Hattasingh, Weerawan [Sonstige Person]
Suvannadabba, Saravudh [Sonstige Person]
Jiwariyavej, Vithaya [Sonstige Person]
Dulyachai, Wut [Sonstige Person]
Chua, Mary Noreen [Sonstige Person]
Luong, Chan Quang [Sonstige Person]
Rusmil, Kusnandi [Sonstige Person]
Wirawan, Dewa Nyoman [Sonstige Person]
Nallusamy, Revathy [Sonstige Person]
Pitisuttithum, Punnee [Sonstige Person]
Thisyakorn, Usa [Sonstige Person]
Yoon, In-Kyu [Sonstige Person]
Alberto, Edison [Sonstige Person]
Chan, Kwai-Cheng [Sonstige Person]
Mohamed, Thahira Jamal [Sonstige Person]
Lim, Jonathan G [Sonstige Person]
Pengsaa, Krisana [Sonstige Person]
Sekartini, Rini [Sonstige Person]
Setiabudi, Djatnika [Sonstige Person]
Trongkamolchai, Supachoke [Sonstige Person]
Uppapong, Angkana [Sonstige Person]
Utama, Dwi Lingga [Sonstige Person]
Yoksan, Sutee [Sonstige Person]
Cunha, Rivaldo [Sonstige Person]
Costa, Maria Selma [Sonstige Person]
Rey, Luis Carlos [Sonstige Person]
Luz, Kleber [Sonstige Person]
de Lima, Henrique Alves [Sonstige Person]
Soares, Amanda Queiroz [Sonstige Person]
Pipolo Milan, Eveline [Sonstige Person]
Alves, Manoella do Monte [Sonstige Person]
da Silva Nascimento, Maria Fabiana [Sonstige Person]
Camara, Lilia Maraia Carneiro [Sonstige Person]
de Sadovsky, Ana Daniela Azoton [Sonstige Person]
Rodrigues, Patricia Marquez [Sonstige Person]
Giuberti, Camila [Sonstige Person]
Paniago, Anamaría Mello M [Sonstige Person]
Matos, Vanessa Gubert [Sonstige Person]
Villar, Luis [Sonstige Person]
Carrasquilla, Gabriel [Sonstige Person]
Quintero, Juliana [Sonstige Person]
Carrillo, Jaime [Sonstige Person]
Osorio, Víctor [Sonstige Person]
Pachón, Héctor [Sonstige Person]
López, Reynaldo [Sonstige Person]
Pardo, Erwin [Sonstige Person]
Sierra, Victor [Sonstige Person]
Rodríguez, Edith [Sonstige Person]
Velasquez, Héctor [Sonstige Person]
Medina, Libia M Hernández [Sonstige Person]
Rojas, Elsa [Sonstige Person]
Niederbacher, Jurg [Sonstige Person]
Ferdovsian, Elham B Mandegari [Sonstige Person]
Gabrie, Ligia [Sonstige Person]
Aguilera, Myrna L Vásquez [Sonstige Person]
Sabillón, Amalia I [Sonstige Person]
Damian, Leonor Cristina Benist [Sonstige Person]
Valencia Camara, Ismael Martin [Sonstige Person]
Martin, María Concepcion Morales [Sonstige Person]
Troche, José Maria Remes [Sonstige Person]
Alarcon, Guadalupe [Sonstige Person]
Morales-Ramírez, Javier Osvaldo [Sonstige Person]
Deseda Tous, Jaime [Sonstige Person]
Quiñones, Jeffrey [Sonstige Person]
Miguel, José [Sonstige Person]

Links:

Volltext

Themen:

Clinical Trial, Phase III
Dengue Vaccines
Journal Article
Multicenter Study
Randomized Controlled Trial
Research Support, Non-U.S. Gov't
Vaccines, Attenuated

Anmerkungen:

Date Completed 08.10.2015

Date Revised 08.04.2022

published: Print-Electronic

ClinicalTrials.gov: NCT00842530, NCT01373281, NCT01374516, NCT01983553

CommentIn: N Engl J Med. 2015 Sep 24;373(13):1263-4. - PMID 26214040

Citation Status MEDLINE

doi:

10.1056/NEJMoa1506223

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM251262650