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A Heterologous Prime-boost Study to Evaluate Immunogenicity and Safety of mRNA-1273 With MVC-COV1901 in Adults

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. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT05079633
Recruitment Status : Active, not recruiting
First Posted : October 15, 2021
Last Update Posted : December 10, 2021
Sponsor:
Information provided by (Responsible Party):
National Taiwan University Hospital

Brief Summary:
The primary objective of the study is to evaluable the safety and to demonstrate the immunogenicity of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273), with an interval of 8-12 weeks, This study also assesses the safety and tolerability of the study intervention and explores the immunogenicity by the antigen-specific immunoglobulin, the immunogenicity against the VoCs, the antigen specific cellular immune response, as well as the potential efficacy of study intervention in preventing COVID-19.

Condition or disease Intervention/treatment Phase
Covid19 Vaccine Biological: Homologous boost schedule Biological: Heterologous boost schedule Phase 4

Detailed Description:

This is a parallel group, prospective, randomized, double-blind, two-arm, single-center study to be conducted in approximately 220 healthy participants aged 20 to 70 years who are generally healthy or with stable pre-existing health condition.

The participants should previously have their first dose of mRNA-1273. The participants, investigators, and the site personnel will be blinded to the study intervention assignment until all the participants complete their Day 29. Preparation and administration of study intervention will be performed by authorized unblinded site personnel who do not participate in the evaluation of the participants.

Eligible participants will be randomized to receive either mRNA-1273 or MVC-COV1901 vaccine at a 1:1 ratio. Randomization of participants will be stratified by the interval apart from their first dose of mRNA-1273 (< 10 weeks or ≥ 10 weeks).

The study consists of 6 on-site visits:

Day -28 to Day 1, Visit 1 (Screening) Day 1, Visit 2 (study intervention) Day 15 ± 3 days, Visit 3 Day 29 ± 3 days, Visit 4 Day 91 ± 14 days, Visit 5 Day 181 ± 14 days, Visit 6 Unscheduled visit(s) may be arranged when deemed necessary by the investigator.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 220 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Prevention
Official Title: A Parallel Group, Prospective, Randomized, Double-blind, Two-arm, Single-center Study to Evaluate the Immunogenicity, Safety, and Tolerability of mRNA-1273 in Heterologous Prime-Boost With MVC-COV1901 in Adult Volunteers of 20 to 70 Years
Actual Study Start Date : September 30, 2021
Estimated Primary Completion Date : December 2021
Estimated Study Completion Date : June 2022

Resource links provided by the National Library of Medicine


Arm Intervention/treatment
Active Comparator: Moderna COVID-19 vaccine (mRNA 1273)
110 participants will be randomly assigned to Moderna COVID 19
Biological: Homologous boost schedule
1st dose mRNA 1273 , 2nd dose mRNA 1273

Experimental: Medigen COVID-19 vaccine (MVC COV1901)
110 participants will be randomly assigned to Medigen COVID 19 vaccine
Biological: Heterologous boost schedule
1st dose mRNA 1273 , 2nd dose MVC COV1901




Primary Outcome Measures :
  1. Primary Immunogenicity-GMT [ Time Frame: Day 1 to Day 15 ]

    To evaluate the immunogenicity of heterologous prime boost (mRNA 1273, MVC-COV1901), compared to homologous prime boost (mRNA 1273), in terms of neutralizing antibody titers at 14 days after the study intervention

    -Geometric mean titer (GMT)


  2. Primary Immunogenicity-SCR [ Time Frame: Day 1 to Day 15 ]

    To evaluate the immunogenicity of heterologous prime boost (mRNA 1273, MVC-COV1901), compared to homologous prime boost (mRNA 1273), in terms of neutralizing antibody titers at 14 days after the study intervention

    -Seroconversion rate (SCR)


  3. Primary Immunogenicity-GMR [ Time Frame: Day 1 to Day 15 ]

    To evaluate the immunogenicity of heterologous prime boost (mRNA 1273, MVC-COV1901), compared to homologous prime boost (mRNA 1273), in terms of neutralizing antibody titers at 14 days after the study intervention

    -GMT ratio


  4. Primary Safety [ Time Frame: Day 1 to Day 29 ]

    To evaluate the safety and tolerability of heterologous prime boost (mRNA 1273, MVC-COV1901), compared to homologous prime boost (mRNA 1273) from Day 1 to Day 29

    The number and percentage of participants with the occurrence of:

    • Solicited local adverse events (AEs)
    • Solicited systemic AEs
    • Unsolicited AEs


Secondary Outcome Measures :
  1. Secondary Immunogenicity-GMT [ Time Frame: Day 29 to Day 181 ]

    To evaluate the immunogenicity of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273) in terms of neutralizing antibody titers at 28 days, 90 days, and 180 days after the study intervention

    -Geometric mean titer (GMT)


  2. Secondary Immunogenicity-SCR [ Time Frame: Day 29 to Day 181 ]

    To evaluate the immunogenicity of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273) in terms of neutralizing antibody titers at 28 days, 90 days, and 180 days after the study intervention

    -Seroconversion rate (SCR)


  3. Secondary Immunogenicity-GMR [ Time Frame: Day 29 to Day 181 ]

    To evaluate the immunogenicity of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273) in terms of neutralizing antibody titers at 28 days, 90 days, and 180 days after the study intervention

    -GMT ratio


  4. Secondary Safety [ Time Frame: Day 1 to Day 181 ]

    To evaluate the safety of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273) throughout the study

    The number and percentage of participants with the occurrence of:

    • Medically Attended Adverse Events (MAAEs)
    • Adverse Event of Special Interest (AESIs)
    • Vaccine-Associated Enhanced Disease (VAED)
    • Serious Adverse Events(SAEs)


Other Outcome Measures:
  1. Exploratory (antigen-specific immunoglobulin)-GMT [ Time Frame: Day 29 to Day 181 ]

    To evaluate the immunogenicity of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273), in terms of antigen-specific immunoglobulin titers at 28 days, 90 days, and 180 days after the study intervention

    -Geometric mean titer (GMT)


  2. Exploratory (antigen-specific immunoglobulin)-SCR [ Time Frame: Day 29 to Day 181 ]

    To evaluate the immunogenicity of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273), in terms of antigen-specific immunoglobulin titers at 28 days, 90 days, and 180 days after the study intervention

    -Seroconversion rate (SCR)


  3. Exploratory (antigen-specific immunoglobulin)-GMR [ Time Frame: Day 29 to Day 181 ]

    To evaluate the immunogenicity of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273), in terms of antigen-specific immunoglobulin titers at 28 days, 90 days, and 180 days after the study intervention

    -GMT ratio


  4. Exploratory (VoC) [ Time Frame: Day 1 to Day 15 ]

    To evaluate the immunogenicity of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273), in terms of neutralizing antibody titers against Variants of Concerns at 14 days after the study intervention

    • GMT against VoCs including the Delta strain
    • Fold-reduction of GMT against VoCs comparing to Wild-Type strain

  5. Exploratory (Cell Immunity) [ Time Frame: Day 1 to Day 15 ]
    To evaluate antigen specific cellular immune responsese of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273) at 14 days after the study intervention as determined by various classes of cytokines

  6. Exploratory (Clinical Efficacy) [ Time Frame: Day 15 to Day 181 ]

    To estimate the efficacy of heterologous prime-boost (mRNA-1273, MVC-COV1901), compared to homologous prime-boost (mRNA-1273), in the prevention of COVID-19

    • Number of laboratory-confirmed COVID-19 cases occurring ≥ 15 days after study intervention
    • Number of laboratory-confirmed COVID-19 severe cases occurring ≥ 15 days after study intervention



Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


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Ages Eligible for Study:   20 Years to 69 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  1. Male or female participant aged ≥20 to <70 years at randomization.
  2. Has received one dose of the mRNA-1273 8 to 12 weeks before randomization.
  3. Female participant must:

    1. Be either of non-childbearing potential, i.e. surgically sterilized (defined as having undergone hysterectomy and/or bilateral oophorectomy and/or bilateral salpingectomy; tubal ligation alone is not considered sufficient) or one year post-menopausal;
    2. Or, if of childbearing potential, be abstinent or agree to use medically effective contraception from 14 days before screening to 30 days following the last administration of study intervention. Acceptable forms include:

    i. Implanted hormonal methods of contraception or placement of an intrauterine device or intrauterine system ii. Established use of hormonal methods (injectable, pill, patch or ring) combined with barrier methods of contraception: condom or occlusive cap (diaphragm or cervical/vault caps) with spermicidal foam/gel/film/cream/suppository c. Have a negative pregnancy test

  4. Participant is willing and able to comply with all required study visits and follow-up required by this protocol.
  5. Participant or the participant's legal representative must understand the procedures of the study and provide written informed consent.

Exclusion Criteria:

  1. Pregnant or breast feeding or have plan to become pregnant within 30 days after the administration of study intervention.
  2. Currently receiving or received any investigational intervention within 30 days prior to the study intervention.
  3. Administered any licensed live-attenuated vaccines within 28 days or other licensed non-live-attenuated vaccines within 7 days prior to the study intervention.
  4. Administered any blood product or intravenous immunoglobulin administration within 12 weeks prior to the study intervention.
  5. Currently receiving or anticipate to receive concomitant immunosuppressive or immune-modifying therapy (excluding inhaled, topical skin and/or eye drop-containing corticosteroids, low-dose methotrexate, or < 2 weeks of daily receipt of prednisone less than 20 mg or equivalent) within 12 weeks prior to the study intervention.
  6. Currently receiving or anticipate to receive treatment with tumor necrosis factor (TNF)-α inhibitors, e.g. infliximab, adalimumab, etanercept within 12 weeks prior to the study intervention.
  7. Major surgery or any radiation therapy within 12 weeks prior to the study intervention.
  8. Has received any investigational or licensed COVID-19 vaccine other than mRNA-1273, or ≥ two doses of mRNA-1273.
  9. Immunosuppressive illness or immunodeficient state, including hematologic malignancy, history of solid organ, bone marrow transplantation, or asplenia.
  10. A history of malignancy with potential risk for recurrence after curative treatment, or current diagnosis of or treatment for cancer (exceptions are squamous and basal cell carcinomas of the skin and treated uterine cervical carcinoma in situ, at the discretion of the investigator).
  11. Bleeding disorder considered a contraindication to IM injection or phlebotomy.
  12. Known SARS-CoV-2 infection in the recent 3 months prior to the study intervention.
  13. A history of cerebral venous sinus thrombosis, heparin-induced thrombocytopenia or antiphospholipid syndrome.
  14. Participant who, in the investigator's judgement, is not in a stable condition and by participating in the study could adversely affect the safety of the participant, interfere with adherence to study requirements or evaluation of any study endpoint. This may include a participant with ongoing acute diseases, severe infections, autoimmune disease, laboratory abnormality or serious medical conditions in the following systems: cardiovascular, pulmonary, hepatic, neurologic, metabolic, renal, or psychiatric.
  15. A history of hypersensitivity to any vaccine or a history of allergic disease or reactions likely to be exacerbated by any component of the mRNA-1273 or MVC-COV1901.
  16. Body (oral, rectal, or ear) temperature ≥ 38.0°C or acute illness (not including minor illnesses such as diarrhea or mild upper respiratory tract infection at the discretion of the investigator) within 2 days before the study intervention.

Information from the National Library of Medicine

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): NCT05079633


Locations
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Taiwan
National Taiwan University Hospital
Taipei, Taiwan
Sponsors and Collaborators
National Taiwan University Hospital
Investigators
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Principal Investigator: Szu-Min Hsieh, MD.Ph.D. National Taiwan University Hospital
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Responsible Party: National Taiwan University Hospital
ClinicalTrials.gov Identifier: NCT05079633    
Other Study ID Numbers: 202108058MINB
First Posted: October 15, 2021    Key Record Dates
Last Update Posted: December 10, 2021
Last Verified: October 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Keywords provided by National Taiwan University Hospital:
Covid19 vaccine
Additional relevant MeSH terms:
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COVID-19
Respiratory Tract Infections
Infections
Pneumonia, Viral
Pneumonia
Virus Diseases
Coronavirus Infections
Coronaviridae Infections
Nidovirales Infections
RNA Virus Infections
Lung Diseases
Respiratory Tract Diseases