PMID- 36366373 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221222 IS - 2076-393X (Print) IS - 2076-393X (Electronic) IS - 2076-393X (Linking) VI - 10 IP - 11 DP - 2022 Nov 4 TI - Efficacy, Immunogenicity, and Safety of the Two-Dose Schedules of TURKOVAC versus CoronaVac in Healthy Subjects: A Randomized, Observer-Blinded, Non-Inferiority Phase III Trial. LID - 10.3390/vaccines10111865 [doi] LID - 1865 AB - We present the interim results of the efficacy, immunogenicity, and safety of the two-dose schedules of TURKOVAC versus CoronaVac. This was a randomized, observer-blinded, non-inferiority trial (NCT04942405). Volunteers were 18-55 years old and randomized at a 1:1 ratio to receive either TURKOVAC or CoronaVac at Day 0 and Day 28, both of which are 3 mug/0.5 mL of inactivated severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) adsorbed to aluminum hydroxide. The primary efficacy outcome was the prevention of polymerase chain reaction (PCR)-confirmed symptomatic coronavirus disease 2019 (COVID-19) at least 14 days after the second dose in the modified per-protocol (mPP) group. Safety analyses were performed in the modified intention-to-treat (mITT) group. Between 22 June 2021 and 7 January 2022, 1290 participants were randomized. The mITT group consisted of 915 participants, and the mPP group consisted of 732 participants. During a median follow-up of 90 (IQR 86-90) days, the relative risk reduction with TURKOVAC compared to CoronaVac was 41.03% (95% CI 12.95-60.06) for preventing PCR-confirmed symptomatic COVID-19. The incidences of adverse events (AEs) overall were 58.8% in TURKOVAC and 49.7% in CoronaVac arms (p = 0.006), with no fatalities or grade four AEs. TURKOVAC was non-inferior to CoronaVac in terms of efficacy and demonstrated a good safety and tolerability profile. FAU - Tanriover, Mine Durusu AU - Tanriover MD AUID- ORCID: 0000-0001-9565-4389 AD - Department of Internal Medicine, Hacettepe University Faculty of Medicine, 06230 Ankara, Turkiye. AD - Vaccine Institute, Hacettepe University, 06230 Ankara, Turkiye. FAU - Aydin, Ozlem Altuntas AU - Aydin OA AD - Department of Infectious Diseases and Clinical Microbiology, University of Health Sciences, Basaksehir Cam and Sakura City Hospital, 34480 Istanbul, Turkiye. FAU - Guner, Rahmet AU - Guner R AD - Infectious Diseases and Clinical Microbiology Clinic, Ankara Yildirim Beyazit University, Ankara City Hospital, 06800 Ankara, Turkiye. FAU - Yildiz, Orhan AU - Yildiz O AD - Department of Infectious Diseases and Clinical Microbiology, Erciyes University Faculty of Medicine, 38030 Kayseri, Turkiye. FAU - Celik, Ilhami AU - Celik I AUID- ORCID: 0000-0002-2604-3776 AD - Department of Infectious Diseases and Clinical Microbiology, Kayseri City Training and Research Hospital, 38080 Kayseri, Turkiye. FAU - Doganay, Hamdi Levent AU - Doganay HL AD - Department of Gastroenterology, Medical Park Pendik Hospital, 34899 Istanbul, Turkiye. AD - Department of Internal Medicine, Bahcesehir University School of Medicine, 34734 Istanbul, Turkiye. FAU - Kose, Sukran AU - Kose S AD - Infectious Diseases Clinic, University of Health Sciences, Izmir Tepecik Training and Research Hospital, 35020 Izmir, Turkiye. FAU - Akhan, Sila AU - Akhan S AD - Department of Infectious Diseases and Clinical Microbiology, Kocaeli University Faculty of Medicine, 41001 Kocaeli, Turkiye. FAU - Akalin, Emin Halis AU - Akalin EH AUID- ORCID: 0000-0001-7530-1279 AD - Department of Infectious Diseases and Clinical Microbiology, Bursa Uludag University Faculty of Medicine, 16059 Bursa, Turkiye. FAU - Sezer, Zafer AU - Sezer Z AD - Department of Medical Pharmacology, Erciyes University Faculty of Medicine, 38030 Kayseri, Turkiye. FAU - Ozdarendeli, Aykut AU - Ozdarendeli A AD - Department of Microbiology, Erciyes University Faculty of Medicine, 38030 Kayseri, Turkiye. AD - Vaccine Research, Development and Application Centre (ERAGEM), Erciyes University, 38280 Kayseri, Turkiye. FAU - Unal, Serhat AU - Unal S AUID- ORCID: 0000-0003-1184-4711 AD - Vaccine Institute, Hacettepe University, 06230 Ankara, Turkiye. AD - Department of Infectious Diseases and Clinical Microbiology, Hacettepe University Faculty of Medicine, 06230 Ankara, Turkiye. FAU - On Behalf Of The Turkovac Study Group AU - On Behalf Of The Turkovac Study Group LA - eng GR - TSB-11568-VAC-COV-TUR-F3.01/THE HEALTH INSTITUTES OF TURKIYE (TUSEB)./ PT - Journal Article DEP - 20221104 PL - Switzerland TA - Vaccines (Basel) JT - Vaccines JID - 101629355 PMC - PMC9698857 OTO - NOTNLM OT - COVID-19 OT - CoronaVac OT - SARS-CoV-2 vaccines OT - TURKOVAC OT - efficacy OT - safety OT - vaccination OT - vaccine OT - vaccine immunogenicity COIS- Aykut Ozdarendeli is the named inventor on patent applications covering inactivated COVID-19 vaccine development. All remaining authors declare no competing interests. EDAT- 2022/11/12 06:00 MHDA- 2022/11/12 06:01 PMCR- 2022/11/04 CRDT- 2022/11/11 01:55 PHST- 2022/10/04 00:00 [received] PHST- 2022/10/27 00:00 [revised] PHST- 2022/11/01 00:00 [accepted] PHST- 2022/11/11 01:55 [entrez] PHST- 2022/11/12 06:00 [pubmed] PHST- 2022/11/12 06:01 [medline] PHST- 2022/11/04 00:00 [pmc-release] AID - vaccines10111865 [pii] AID - vaccines-10-01865 [pii] AID - 10.3390/vaccines10111865 [doi] PST - epublish SO - Vaccines (Basel). 2022 Nov 4;10(11):1865. doi: 10.3390/vaccines10111865.