Your browser doesn't support javascript.
Safety and immunogenicity of a SARS-CoV-2 recombinant protein nanoparticle vaccine (GBP510) adjuvanted with AS03: A randomised, placebo-controlled, observer-blinded phase 1/2 trial.
Song, Joon Young; Choi, Won Suk; Heo, Jung Yeon; Lee, Jin Soo; Jung, Dong Sik; Kim, Shin-Woo; Park, Kyung-Hwa; Eom, Joong Sik; Jeong, Su Jin; Lee, Jacob; Kwon, Ki Tae; Choi, Hee Jung; Sohn, Jang Wook; Kim, Young Keun; Noh, Ji Yun; Kim, Woo Joo; Roman, François; Ceregido, Maria Angeles; Solmi, Francesca; Philippot, Agathe; Walls, Alexandra C; Carter, Lauren; Veesler, David; King, Neil P; Kim, Hun; Ryu, Ji Hwa; Lee, Su Jeen; Park, Yong Wook; Park, Ho Keun; Cheong, Hee Jin.
  • Song JY; Division of Infectious Diseases, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
  • Choi WS; Division of Infectious Diseases, Department of Internal Medicine, Korea University Ansan Hospital, Korea University College of Medicine, Ansan, Republic of Korea.
  • Heo JY; Department of Infectious Diseases, Ajou University School of Medicine, Suwon, Republic of Korea.
  • Lee JS; Division of Infectious Diseases, Department of Internal Medicine, Inha University College of Medicine, Incheon, Republic of Korea.
  • Jung DS; Division of Infectious Diseases, Department of Internal Medicine, Dong-A University College of Medicine, Busan, Republic of Korea.
  • Kim SW; Division of Infectious Diseases, Department of Internal Medicine, Kyungpook National University Hospital, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
  • Park KH; Division of Infectious Diseases, Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Republic of Korea.
  • Eom JS; Division of Infectious Diseases, Department of Internal Medicine, Gil Medical Centre, Gachon University College of Medicine, Incheon, Republic of Korea.
  • Jeong SJ; Division of Infectious Diseases, Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea.
  • Lee J; Division of Infectious Diseases, Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Republic of Korea.
  • Kwon KT; Division of Infectious Diseases, Department of Internal Medicine, Kyungpook National University Chilgok Hospital, School of Medicine, Kyungpook National University, Daegu, Republic of Korea.
  • Choi HJ; Division of Infectious Diseases, Department of Internal Medicine, Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea.
  • Sohn JW; Division of Infectious Diseases, Department of Internal Medicine, Korea University Anam Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
  • Kim YK; Division of Infectious Diseases, Department of Internal Medicine, Yonsei University Wonju Severance Christian Hospital, Yonsei University Wonju College of Medicine, Wonju, Republic of Korea.
  • Noh JY; Division of Infectious Diseases, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
  • Kim WJ; Division of Infectious Diseases, Department of Internal Medicine, Korea University Guro Hospital, Korea University College of Medicine, Seoul, Republic of Korea.
  • Roman F; GlaxoSmithKline Vaccines, Wavre, Belgium.
  • Ceregido MA; GlaxoSmithKline Vaccines, Wavre, Belgium.
  • Solmi F; GlaxoSmithKline Vaccines, Wavre, Belgium.
  • Philippot A; GlaxoSmithKline Vaccines, Wavre, Belgium.
  • Walls AC; Department of Biochemistry, University of Washington, WA, USA.
  • Carter L; Howard Hughes Medical Institute, University of Washington, WA, USA.
  • Veesler D; Department of Biochemistry, University of Washington, WA, USA.
  • King NP; Institute for Protein Design, University of Washington, WA, USA.
  • Kim H; Department of Biochemistry, University of Washington, WA, USA.
  • Ryu JH; Howard Hughes Medical Institute, University of Washington, WA, USA.
  • Lee SJ; Department of Biochemistry, University of Washington, WA, USA.
  • Park YW; Institute for Protein Design, University of Washington, WA, USA.
  • Park HK; Department of R&D, SK Bioscience, Seongnam, Republic of Korea.
  • Cheong HJ; Department of R&D, SK Bioscience, Seongnam, Republic of Korea.
EClinicalMedicine ; 51: 101569, 2022 Sep.
Article in English | MEDLINE | ID: covidwho-1956125
ABSTRACT

Background:

Vaccination has helped to mitigate the COVID-19 pandemic. Ten traditional and novel vaccines have been listed by the World Health Organization for emergency use. Additional alternative approaches may better address ongoing vaccination globally, where there remains an inequity in vaccine distribution. GBP510 is a recombinant protein vaccine, which consists of self-assembling, two-component nanoparticles, displaying the receptor-binding domain (RBD) in a highly immunogenic array.

Methods:

This randomised, placebo-controlled, observer-blinded phase 1/2 study was conducted to evaluate the safety and immunogenicity of GBP510 (2-doses at a 28-day interval) adjuvanted with or without AS03 in adults aged 19-85 years at 14 hospital sites in Korea. This study was consisted of two stages (stage I, healthy adults aged 19-55 years; stage II, 240 healthy adults aged 19-85 years). Healthy participants who did not previously receive any vaccine within 4 weeks (2 weeks for flu vaccine) prior to the study, no history of COVID-19 vaccination/medication, and were naïve to SARS-CoV-2 infection at screening were eligible for the study enrollment. Participants were block-randomized in a 221 ratio to receive 2 doses of 10 µg GBP510 adjuvanted with AS03 (group 1), 10 µg unadjuvanted GBP510 (group 2) or placebo intramuscularly in stage I, while they were block-randomized in a 2211 ratio to receive 10 µg GBP510 adjuvanted with AS03 (group 1), 25 µg GBP510 adjuvanted with AS03 (group 3), 25 µg unadjuvanted GBP510 (group 4) or placebo in stage II. The primary safety outcomes were solicited and unsolicited adverse events, while primary immunogenicity outcomes included anti-SARS-CoV-2 RBD IgG antibodies; neutralizing antibody responses; and T-cell immune responses. Safety assessment included all participants who received at least 1 dose of study intervention (safety set). Immunogenicity assessment included all participants who completed the vaccination schedule and had valid immunogenicity assessment results without any major protocol deviations (per-protocol set). This study was registered with ClinicalTrials.gov (NCT04750343).

Findings:

Of 328 participants who were enrolled between February 1 and May 28, 2021, 327 participants received at least 1 dose of vaccine. Each received either 10 µg GBP510 adjuvanted with AS03 (Group 1, n = 101), 10 µg unadjuvanted GBP510 (Group 2, n = 10), 25 µg GBP510 adjuvanted with AS03 (Group 3, n = 104), 25 µg unadjuvanted GBP510 (Group 4, n = 51), or placebo (n = 61). Higher reactogenicity was observed in the GBP510 adjuvanted with AS03 groups compared to the non-adjuvanted and placebo groups. The most frequently reported solicited local adverse event (AE) was injection site pain after any vaccination (88·1% in group 1; 50·0% in group 2; 92·3% in group 3; 66·7% in group 4). Fatigue and myalgia were two most frequently reported systemic AEs and more frequently reported in GBP510 adjuvanted with AS03 recipients (79·2% and 78·2% in group 1; 75·0% and 79·8% in group 3, respectively) than in the unadjuvanted vaccine recipients (40·0% and of 40·0% in group 2; 60·8% and 47·1% in group 4) after any vaccination. Reactogenicity was higher post-dose 2 compared to post-dose 1, particularly for systemic AEs. The geometric mean concentrations of anti-SARS-CoV-2-RBD IgG antibody reached 2163·6/2599·2 BAU/mL in GBP510 adjuvanted with AS03 recipients (10 µg/25 µg) by 14 days after the second dose. Two-dose vaccination of 10 µg or 25 µg GBP510 adjuvanted with AS03 induced high titres of neutralizing antibody via pseudovirus (1369·0/1431·5 IU/mL) and wild-type virus (949·8/861·0 IU/mL) assay.

Interpretation:

GBP510 adjuvanted with AS03 was well tolerated and highly immunogenic. These results support further development of the vaccine candidate, which is currently being evaluated in Phase 3.

Funding:

This work was supported, in whole or in part, by funding from CEPI and the Bill & Melinda Gates Foundation Investment ID OPP1148601. The Bill & Melinda Gates Foundation supported this project for the generation of IND-enabling data and CEPI supported this clinical study.
Keywords

Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Prognostic study / Randomized controlled trials Topics: Vaccines Language: English Journal: EClinicalMedicine Year: 2022 Document Type: Article

Similar

MEDLINE

...
LILACS

LIS


Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Prognostic study / Randomized controlled trials Topics: Vaccines Language: English Journal: EClinicalMedicine Year: 2022 Document Type: Article