A Study to Evaluate UB-612 COVID-19 Vaccine in Adolescent, Younger and Elderly Adult Volunteers
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The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. |
ClinicalTrials.gov Identifier: NCT04773067 |
Recruitment Status :
Recruiting
First Posted : February 26, 2021
Last Update Posted : February 26, 2021
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Condition or disease | Intervention/treatment | Phase |
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COVID-19 | Biological: UB-612 Biological: Placebo | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 3850 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Double (Participant, Investigator) |
Primary Purpose: | Prevention |
Official Title: | A Phase II, Placebo-controlled, Randomized, Observer-blind Study to Evaluate the Immunogenicity, Safety, and Tolerability of UB-612 Vaccine Against COVID-19 in Adolescent, Younger and Elderly Adult Volunteers |
Actual Study Start Date : | January 30, 2021 |
Estimated Primary Completion Date : | June 30, 2021 |
Estimated Study Completion Date : | June 30, 2022 |
Arm | Intervention/treatment |
---|---|
Experimental: UB-612
A proprietary high-precision designer S1-RBD-protein based vaccine incorporating a Th/CTL epitope peptide pool which could bind to human MHC-I and MHC-II to activate T cells.
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Biological: UB-612
Around 3850 adult subjects will be enrolled into core group, and 385 adolescents will be recruited for supplementary group. |
Placebo Comparator: Placebo
0.9% sodium chloride
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Biological: Placebo
Around 3850 adult subjects will be enrolled into core group, and 385 adolescents will be recruited for supplementary group. |
- Geometric mean titer (GMT) of SARS-CoV-2 neutralizaing antibody [ Time Frame: Day 57 ]Evaluation of immunogenicity
- Seroconversion rate (SCR) of SARS-CoV-2 neutralizing antibody [ Time Frame: Day 57 ]Evaluation of immunogenicity
- Safety evaluation [ Time Frame: Day 1 to Day 197 ]
- Local reactions and systemic events for up to 7 days following each dose
- Unsolicited adverse events from Day 1 to Day 57
- MAAEs, SAEs, AESIs and ADEs from Day 1 to Day 197
- SCR of anti-S1-RBD antibody [ Time Frame: Day 57 ]Evaluation of immunogenicity
- GMT of SARS-CoV-2 neutralizing antibody [ Time Frame: Day 197 and 365 ]Evaluation of immunogenicity
- GMT of anti-S1-RBD antibody [ Time Frame: Day 57, 197 and 365 ]Evaluation of immunogenicity
- Geometric mean fold increase in anti-S1-RBD and SARS-CoV-2 neutralizing antibodies [ Time Frame: Day 57, 197 and 365 ]Evaluation of immunogenicity
- Evaluation of lot to lot consistency [ Time Frame: Day 57 ]As assessed by the comparisons of the GMT of SARS-CoV-2 neutralizing antibody induced by 3 independent clinical materials
- GMT of SARS-CoV-2 neutralizing antibody in adolescents [ Time Frame: Day 57 ]Evaluation of immunogenicity
- SCR of SARS-CoV-2 neutralizing antibody in adolescents [ Time Frame: Day 57 ]Evaluation of immunogenicity
- Safety evaluation in adolescents [ Time Frame: Day 1 to Day 365 ]
- Local reactions and systemic events for up to 7 days following each dose
- Unsolicited AEs from Day 1 to Day 57
- MAAEs, SAEs, AESIs and ADEs from Day 1 to Day 365
- Incidence of COVID-19 cases [ Time Frame: Day 1 to Day 365 ]COVID-19 incidence per 1000 person-years of follow-up

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Ages Eligible for Study: | 12 Years to 85 Years (Child, Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Healthy male or non-pregnant female between the age of 12 to 85 years at time of enrolment.
- Women of childbearing potential and men must agree to practice medically effective contraception from first vaccination until 3 months after the last vaccination.
- Able to understand the content and possible risks of informed consent and willing to sign the Informed Consent Form (ICF).
- Able to understand and agrees to comply with all study procedures and be available for all study visits.
- Ear temperature ≤ 38.0°C.
- Healthy participants who are determined by medical history, physical examination, and clinical judgment of the investigator to be eligible for inclusion in the study. In the investigator's clinical judgement, participant may have a stable and well-controlled comorbidity associated with an increased risk of progression to severe COVID-19.
Exclusion Criteria:
- History of anaphylaxis, urticarial, or other significant adverse reaction requiring medical intervention after receipt of a vaccine.
- Female who is pregnant or positive in pregnancy test at screening or just prior to each vaccination administration.
- Female who is breast-feeding or plans to breastfeed from the time of the first vaccination through 60 days after the last vaccination.
- Any acute illness, as determined by the study investigator 3 days before first vaccination (these subjects can be re-scheduled).
- Any major surgery one month before first vaccination (these subjects can be -rescheduled).
- Known HIV antibody positive.
- Known active hepatitis B and hepatitis C disease.
- Previous exposure to SARS-CoV-2 or receipt of an investigational or licensed product for the prevention of COVID-19, MERS or SARS.
- Have history of Guillain-Barre syndrome.
- Subjects who take part in another clinical study within 12 weeks prior to the day of informed consent.
- Immune deficiency/disorder, whether due to genetic defect, immunodeficiency disease or immunosuppressive therapy.
- Subjects who plan to or are undergoing anti-cancer therapy.
- Platelet disorder or other bleeding disorder may cause injection contraindication.
- Prior chronic administration of immunosuppressant or corticosteroids, cytotoxic treatment in last 6 months before first vaccination.
- Prior administration of immunoglobulins and/or any blood products in last 4 months before first vaccination.
- Receipt of any seasonal or pandemic influenza vaccine within 14 days, or any other non-study vaccine within 28 days, before study intervention administration.
- Anticipated receipt of any seasonal or pandemic influenza vaccine within 14 days, or any other nonstudy vaccine within 28 days, after study intervention administration.
- Receipt of short-term (<14 days) systemic corticosteroids. Study intervention administration should be delayed until systemic corticosteroid use has been discontinued for at least 28 days. Inhaled/nebulized, intra-articular, intrabursal, or topical (skin or eyes) corticosteroids are permitted.
- Loss or donation of blood over 500 mL within 3 months prior to Screening Visit or intention to donate blood or blood products for transfusion during the study.
- Any medical disease or condition that, in the opinion of the study investigator, may confound the results of the study or pose an additional risk to the subjects by their participation in the study.
- Employees at the investigator's site, of the Sponsor or the contract research organization (CRO) directly involved in the conduct of the study.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04773067
Contact: Hope Liu, Ph.D. | +886-3-657-8861 ext 5837 | hope.liu@ubiasia.com.tw |
Taiwan | |
Changhua Christian Hospital | Not yet recruiting |
Changhua, Taiwan | |
Contact: Chun-Eng Liu, M.D., Ph.D. | |
Principal Investigator: Chun-Eng Liu, M.D., Ph.D. | |
Chang-Geng Medical Foundation Kaoshiung Chang Gung Memorial Hospital | Not yet recruiting |
Kaohsiung, Taiwan | |
Contact: Chen-Hsiang Lee, M.D.,M.S. | |
Principal Investigator: Chen-Hsiang Lee, M.D.,M.S. | |
Kaohsiung Medical University Chung-Ho Memorial Hospital | Not yet recruiting |
Kaohsiung, Taiwan | |
Contact: Po-Liang Lu, M.D., Ph.D. | |
Principal Investigator: Po-Liang Lu, M.D., Ph.D. | |
Kaohsiung Veterans General Hospital | Not yet recruiting |
Kaohsiung, Taiwan | |
Contact: Hung-Chin Tsai, M.D., Ph.D. | |
Principal Investigator: Hung-Chin Tsai, M.D., Ph.D. | |
Far Eastern Memorial Hospital | Not yet recruiting |
New Taipei City, Taiwan | |
Contact: Chun-Hsing Liao, M.D. | |
Principal Investigator: Chun-Hsing Liao, M.D. | |
China Medical University Hospital | Recruiting |
Taichung, Taiwan | |
Contact: Kao-Pin Hwang, M.D., Ph.D. | |
Principal Investigator: Kao-Pin Hwang, M.D., Ph.D. | |
National Cheng Kung University Hospital | Not yet recruiting |
Tainan, Taiwan | |
Contact: Yi-Ching Yang, M.D., M.P.H. | |
Principal Investigator: Yi-Ching Yang, M.D., M.P.H. | |
Taipei Medical University Hospital | Recruiting |
Taipei, Taiwan | |
Contact: Yuam-Jang Lee, M.D. | |
Principal Investigator: Yuam-Jang Lee, M.D. | |
Taipei Veterans General Hospital | Not yet recruiting |
Taipei, Taiwan | |
Contact: Fu-Der Wang, M.D. | |
Principal Investigator: Fu-Der Wang, M.D. | |
Tri-Service General Hospital | Not yet recruiting |
Taipei, Taiwan | |
Contact: Feng-Yee Chang, M.D., Ph.D. | |
Principal Investigator: Feng-Yee Chang, M.D., Ph.D. | |
Chang-Geng Medical Foundation Linkou Chang-Geng Memorial Hospital | Not yet recruiting |
Taoyuan, Taiwan | |
Contact: Ching-Tai Huang, M.D., Ph.D. | |
Principal Investigator: Ching-Tai Huang, M.D., Ph.D. |
Study Chair: | Chang-Yi Wang, Ph.D. | United Biomedical |
Responsible Party: | United Biomedical Inc., Asia |
ClinicalTrials.gov Identifier: | NCT04773067 |
Other Study ID Numbers: |
V-205 |
First Posted: | February 26, 2021 Key Record Dates |
Last Update Posted: | February 26, 2021 |
Last Verified: | February 2021 |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |