search
Back to results

Phase I Study to Assess the Safety and Immunology of a COVID-19 Vaccine With GRAd-COV2 Vaccine

Primary Purpose

COVID-19

Status
Completed
Phase
Phase 1
Locations
Italy
Study Type
Interventional
Intervention
GRAd-COV2
Sponsored by
ReiThera Srl
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional prevention trial for COVID-19

Eligibility Criteria

18 Years - 85 Years (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

A subject must meet all of the following criteria to be eligible to participate in this study:

  1. Provides written informed consent prior to initiation of any study procedures.
  2. Be able to understand and agrees to comply with planned study procedures and be available for all study visits.
  3. Agrees to the collection of venous blood per protocol.
  4. Confirms to have not donated blood three months before the study
  5. Agrees to refrain from blood during the study and until the three months after the end of the study.
  6. Body Mass Index 18-29 kg/m2, inclusive, at screening.
  7. Premenopausal women must agree to use one acceptable primary form of contraception.
  8. Premenopausal women must have a negative urine pregnancy test the day of vaccination and are routinely using - and willing to use up to six months from vaccine administration - an effective method of birth control resulting in a low failure rate (i.e., hormonal contraception, condoms in combination with a spermicidal cream, male partner sterilization-vasectomy or total sexual abstinence).
  9. Oral temperature ≤37.0 degrees Celsius the day of the administration of the vaccine
  10. Pulse no greater than 100 beats per minute.
  11. Systolic blood pressure (BP) is 85 to 139 mmHg, inclusive the day of vaccination.
  12. Should not show laboratory values outside the normal range which may have clinical significance even in absence of specific signs or symptoms.

Exclusion Criteria:

A subject who meets any of the following criteria will be excluded from participation in this study:

  1. Positive serology for anti-HIV-Ab
  2. Positive HbBsAg
  3. Positive anti-HCV-Ab
  4. Positive for SARS-CoV-2 (either anti-S-Ab or anti-N-Ab)
  5. Acute illness, as determined by the site PI or appropriate sub-investigator, the day of vaccination.
  6. Breastfeeding women
  7. Autoimmune and hyper-inflammatory condition
  8. History of atopy (or any IgE associated condition) who had required treatment over the last 6 months;
  9. History of hypersensitivity or severe allergic reaction (e.g., anaphylaxis, generalized urticaria, angioedema, other significant reaction) to any previous licensed or unlicensed vaccines;
  10. Assumption of any immunomodulatory medication over the last 4 months (including, but not limited to, systemic corticosteroids, allergy injections, immunoglobulin, interferon, immunomodulators, cytotoxic drugs, or other similar or toxic drugs). The use of low dose topical, ophthalmic, inhaled, and intranasal steroid preparations will be permitted.
  11. Presence of self-reported or medically documented significant medical condition
  12. Presence of self-reported or medically documented significant psychiatric condition
  13. Significant cardiovascular disease needing therapy or history of myocarditis or pericarditis or heart surgery. Patients in treatment with Sartans or ACE-Inhibitors and good response to therapy may be included.
  14. Neurological or neurodevelopmental conditions (e.g., history of migraines in the past 5 years, epilepsy, stroke, seizures in the last 3 years, encephalopathy, focal neurologic deficits, Guillain-Barré syndrome, encephalomyelitis or transverse myelitis).
  15. Ongoing malignancy or recent diagnosis of malignancy in the last five years excluding basal cell and squamous cell carcinoma of the skin, which are allowed.
  16. Primary or secondary immunodeficiency of any cause.
  17. Participated in another investigational study involving vaccination of biologic compounds in the last 12 months.
  18. Currently enrolled in or plans to participate in another clinical trial with an investigational agent that will be received during the study-reporting period.
  19. Administration of immunoglobulins and/or any blood or blood products within the 4 months before the first vaccine administration or at any time during the study.
  20. Has any significant disorder of coagulation.
  21. Has any chronic liver disease, including fatty liver.
  22. Has a history of alcohol abuse or other recreational drug use within 6 months before the first vaccine administration.
  23. Has any abnormality or permanent body art (e.g., tattoo) that would interfere with the ability to observe local reactions at the injection site (deltoid region).
  24. Received or plans to receive additional vaccination within 4 weeks before or after each vaccination.
  25. Has been reported as a case (confirmed or probable) of COVID-19 from the regional health system
  26. Has any clinical conditions that, in the opinion of the site PI or appropriate sub-investigator, precludes study participation, this includes any acute, subacute, intermittent or chronic medical disease or condition that would place the subject at an unacceptable risk of injury, render the subject unable to meet the requirements of the protocol, or may interfere with the evaluation of responses or the subject's successful completion of this trial

Sites / Locations

  • INMI Spallanzani
  • Centro Ricerche Cliniche

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm 4

Arm 5

Arm 6

Arm Type

Experimental

Experimental

Experimental

Experimental

Experimental

Experimental

Arm Label

Arm 1 - Low dose

Arm 2 - Intermediate dose

Arm 3 - High dose

Arm 4 - Low dose

Arm 5 - Intermediate dose

Arm 6 - High dose

Arm Description

Arm-1 Healthy adult volunteers aged 18-55y will receive IM single dose of 5e10vp. N=15

Arm-2 Healthy adult volunteers aged 18-55y will receive IM single dose of 1e11vp. N=15

Arm-3 Healthy adult volunteers aged 18-55y will receive IM single dose of 2e11vp. N=15

Arm-4 Healthy elderly volunteers aged 65-85y will receive IM single dose of 5e10vp. N=16

Arm-5 Healthy elderly volunteers aged 65-85y will receive IM single dose of 1e11vp. N=15

Arm-6 Healthy elderly volunteers aged 65-85y will receive IM single dose of 2e11vp. N=15

Outcomes

Primary Outcome Measures

Occurrence of Solicited Local AE Signs and Symptoms 7 Days Following the Vaccination
Participants were monitored for 7 days post-vaccination and the occurrence of solicited local AE signs and symptoms were collected.
Occurrence of Solicited Systemic AE Signs and Symptoms 7 Days Following the Vaccination
Participants were monitored for 7 days post-vaccination and the occurrence of solicited systemic AE signs and symptoms were collected.
Occurrence of Unsolicited AE 28 Days Following the Vaccination
Occurrence of unsolicited AEs: unsolicited AEs were collected using the patient Diary and reported as "Any AE" occurring 28 days following the vaccination.
Occurrence of Serious AE 24 Weeks Following the Vaccination
Occurrence of any treatment - emergent serious AE and treatment - emergent SAE related to study drug was monitored during the study period (24 weeks following vaccination)
Change in Leucocytes From Baseline
Change in Basophils From Baseline
Change in Eosinophils From Baseline
Change in Neutrophils From Baseline
Change from baseline was calculated as the value at each week minus the value at the baseline.
Change in Monocytes From Baseline
Change in Lymphocytes From Baseline
Change in Erythrocytes From Baseline
Change in Hematocrit From Baseline
Change in Platelets From Baseline
Change in Hemoglobin From Baseline
Change in Sodium From Baseline
Change in Potassium From Baseline
Change in Alkaline Phosphatase From Baseline
Change in Alanine Aminotransferase From Baseline
Change in Aspartate Aminotransferase From Baseline
Change in Direct Bilirubin Form Baseline
Change in Bilirubin From Baseline
Change in Albumin Form Baseline
Change in Creatinine Form Baseline
Change in Lactate Dehydrogenase From Baseline
Change in Urea Nitrogen From Baseline

Secondary Outcome Measures

Number of Participants With Positive, Negative or Indeterminate Seroconversion for Anti-s Antibody
To assess the cellular and humoral immune response to SARS-CoV2 elicited by the vaccine Immunogenicity Result: Seroconversion for Anti-S Antibody Interpretation: n. of subjects positive, negative or indeterminate at week 1, 2, 4, 8, 12, and 24 after vaccination.
Number of Participants With Positive, Negative Anti-n Antibody
To assess the cellular and humoral immune response to SARS-CoV2 elicited by the vaccine cellular and humoral immune parameters evaluated: anti-N Antibody Interpretation: n. of subjects positive, negative at week 1, 2, 4, 8, 12 and 24 compared to baseline
Number of Participants With Positive, Negative for Micro Neutralization Test
To assess the cellular and humoral immune response to SARS-CoV2 elicited by the vaccine cellular and humoral immune parameters evaluated: Micro Neutralization test Interpretation: n. of positive and negative subjects at week 4 and week 24 by evaluating geometric mean titer change from baseline
Immunogenicity - T-cell Response
To assess the cellular and humoral immune response to SARS-CoV2 elicited by the vaccine cellular and humoral immune parameters evaluated. T-cells were evaluated on frozen and fresh (week2) samples Within-cohort comparisons to assess the difference in immune response according to different doses in the same population Across-the-cohort comparison to assess whether elderlies and adults have a different pattern of immune response after vaccination at different endpoints Unit: spot-forming cells [SFC]/1 × 10^6 peripheral blood mononuclear cell [PBMC] Interpretation: values higher than at baseline are indicative of a persistent spike-specific memory T-cell establishment.

Full Information

First Posted
August 19, 2020
Last Updated
February 7, 2022
Sponsor
ReiThera Srl
Collaborators
Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani
search

1. Study Identification

Unique Protocol Identification Number
NCT04528641
Brief Title
Phase I Study to Assess the Safety and Immunology of a COVID-19 Vaccine With GRAd-COV2 Vaccine
Official Title
A Phase 1, Dosage-Escalation Study to Assess the Safety and Immunogenicity of a COVID-19 Vaccine GRAd-COV2 in Healthy Adults and Elderly Subjects
Study Type
Interventional

2. Study Status

Record Verification Date
January 2022
Overall Recruitment Status
Completed
Study Start Date
August 10, 2020 (Actual)
Primary Completion Date
May 19, 2021 (Actual)
Study Completion Date
May 19, 2021 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
ReiThera Srl
Collaborators
Istituto Nazionale per le Malattie Infettive Lazzaro Spallanzani

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No

5. Study Description

Brief Summary
RT-CoV-2 is a Phase I, open-label, dose escalation multicenter clinical trial to assess safety and immunogenicity of the candidate Coronavirus disease (COVID-19) vaccine GRAd-COV2 in Italian healthy volunteers aged 18-55 years and 65-85 years inclusive. GRAd-COV2 is based on a novel replication defective Gorilla Adenovirus and encodes for SARS-COV-2 Spike protein.
Detailed Description
RT-CoV-2 is a Phase I, open-label, dose escalation multicenter clinical trial to assess safety and immunogenicity of the candidate Coronavirus disease (COVID-19) vaccine GRAd-COV2 in Italian healthy volunteers aged 18-55 years and 65-85 years inclusive. GRAd-COV2 is based on a novel replication defective Gorilla Adenovirus and encodes for SARS-COV-2 full length prefusion stabilized Spike protein. GRAd-COV2 is developed and manufactured by ReiThera Srl. This study will evaluate a singular intramuscular administration of GRAd-COV2 at 3 dose levels: 5e10, 1e11, 2e11viral particles (vp). There will be 6 study arms for a total of 90 healthy volunteers, divided into 2 cohorts of age, 18-55y and 65-85y, respectively. Participants will be followed up for 24 weeks after vaccination. Follow up includes safety and immunogenicity assessment. Follow up visits will occur at day2, then 1, 2, 4, 8, 12, 24 weeks after vaccination. The primary objective is to evaluate the safety and reactogenicity of a single dose vaccination schedule of GRAd-COV2 across 3 dosages in healthy younger and older adults. The secondary objective is to evaluate humoral and cellular immunogenicity.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
COVID-19

7. Study Design

Primary Purpose
Prevention
Study Phase
Phase 1
Interventional Study Model
Sequential Assignment
Model Description
Phase I, open-label, dose escalation, clinical trial to assess the safety and immunogenicity of the candidate GRAd-COV2 vaccine in 90 healthy volunteers aged 18-55 years and elderly volunteers aged 65-85 years. The vaccine will be administered intramuscularly once in time.
Masking
None (Open Label)
Allocation
Non-Randomized
Enrollment
98 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Arm 1 - Low dose
Arm Type
Experimental
Arm Description
Arm-1 Healthy adult volunteers aged 18-55y will receive IM single dose of 5e10vp. N=15
Arm Title
Arm 2 - Intermediate dose
Arm Type
Experimental
Arm Description
Arm-2 Healthy adult volunteers aged 18-55y will receive IM single dose of 1e11vp. N=15
Arm Title
Arm 3 - High dose
Arm Type
Experimental
Arm Description
Arm-3 Healthy adult volunteers aged 18-55y will receive IM single dose of 2e11vp. N=15
Arm Title
Arm 4 - Low dose
Arm Type
Experimental
Arm Description
Arm-4 Healthy elderly volunteers aged 65-85y will receive IM single dose of 5e10vp. N=16
Arm Title
Arm 5 - Intermediate dose
Arm Type
Experimental
Arm Description
Arm-5 Healthy elderly volunteers aged 65-85y will receive IM single dose of 1e11vp. N=15
Arm Title
Arm 6 - High dose
Arm Type
Experimental
Arm Description
Arm-6 Healthy elderly volunteers aged 65-85y will receive IM single dose of 2e11vp. N=15
Intervention Type
Biological
Intervention Name(s)
GRAd-COV2
Intervention Description
Single intramuscular administration.
Primary Outcome Measure Information:
Title
Occurrence of Solicited Local AE Signs and Symptoms 7 Days Following the Vaccination
Description
Participants were monitored for 7 days post-vaccination and the occurrence of solicited local AE signs and symptoms were collected.
Time Frame
7 days following the vaccination
Title
Occurrence of Solicited Systemic AE Signs and Symptoms 7 Days Following the Vaccination
Description
Participants were monitored for 7 days post-vaccination and the occurrence of solicited systemic AE signs and symptoms were collected.
Time Frame
7 days following the vaccination
Title
Occurrence of Unsolicited AE 28 Days Following the Vaccination
Description
Occurrence of unsolicited AEs: unsolicited AEs were collected using the patient Diary and reported as "Any AE" occurring 28 days following the vaccination.
Time Frame
28 days following the vaccination
Title
Occurrence of Serious AE 24 Weeks Following the Vaccination
Description
Occurrence of any treatment - emergent serious AE and treatment - emergent SAE related to study drug was monitored during the study period (24 weeks following vaccination)
Time Frame
24 weeks following the vaccination
Title
Change in Leucocytes From Baseline
Time Frame
baseline, Weeks 1,2,4,8,12, and 24
Title
Change in Basophils From Baseline
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Eosinophils From Baseline
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Neutrophils From Baseline
Description
Change from baseline was calculated as the value at each week minus the value at the baseline.
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Monocytes From Baseline
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Lymphocytes From Baseline
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Erythrocytes From Baseline
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Hematocrit From Baseline
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Platelets From Baseline
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Hemoglobin From Baseline
Time Frame
Weeks 1,2,4,8,12, and 24
Title
Change in Sodium From Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Potassium From Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Alkaline Phosphatase From Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Alanine Aminotransferase From Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Aspartate Aminotransferase From Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Direct Bilirubin Form Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Bilirubin From Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Albumin Form Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Creatinine Form Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Lactate Dehydrogenase From Baseline
Time Frame
week 1,2,4,8,12, and 24
Title
Change in Urea Nitrogen From Baseline
Time Frame
week 1,2,4,8,12, and 24
Secondary Outcome Measure Information:
Title
Number of Participants With Positive, Negative or Indeterminate Seroconversion for Anti-s Antibody
Description
To assess the cellular and humoral immune response to SARS-CoV2 elicited by the vaccine Immunogenicity Result: Seroconversion for Anti-S Antibody Interpretation: n. of subjects positive, negative or indeterminate at week 1, 2, 4, 8, 12, and 24 after vaccination.
Time Frame
week 1, 2, 4, 8, 12, and 24
Title
Number of Participants With Positive, Negative Anti-n Antibody
Description
To assess the cellular and humoral immune response to SARS-CoV2 elicited by the vaccine cellular and humoral immune parameters evaluated: anti-N Antibody Interpretation: n. of subjects positive, negative at week 1, 2, 4, 8, 12 and 24 compared to baseline
Time Frame
week 1, 2, 4, 8, 12 and 24
Title
Number of Participants With Positive, Negative for Micro Neutralization Test
Description
To assess the cellular and humoral immune response to SARS-CoV2 elicited by the vaccine cellular and humoral immune parameters evaluated: Micro Neutralization test Interpretation: n. of positive and negative subjects at week 4 and week 24 by evaluating geometric mean titer change from baseline
Time Frame
week 4 and week 24
Title
Immunogenicity - T-cell Response
Description
To assess the cellular and humoral immune response to SARS-CoV2 elicited by the vaccine cellular and humoral immune parameters evaluated. T-cells were evaluated on frozen and fresh (week2) samples Within-cohort comparisons to assess the difference in immune response according to different doses in the same population Across-the-cohort comparison to assess whether elderlies and adults have a different pattern of immune response after vaccination at different endpoints Unit: spot-forming cells [SFC]/1 × 10^6 peripheral blood mononuclear cell [PBMC] Interpretation: values higher than at baseline are indicative of a persistent spike-specific memory T-cell establishment.
Time Frame
baseline, week 2, week 4, week 8, week 12, week 24

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
85 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: A subject must meet all of the following criteria to be eligible to participate in this study: Provides written informed consent prior to initiation of any study procedures. Be able to understand and agrees to comply with planned study procedures and be available for all study visits. Agrees to the collection of venous blood per protocol. Confirms to have not donated blood three months before the study Agrees to refrain from blood during the study and until the three months after the end of the study. Body Mass Index 18-29 kg/m2, inclusive, at screening. Premenopausal women must agree to use one acceptable primary form of contraception. Premenopausal women must have a negative urine pregnancy test the day of vaccination and are routinely using - and willing to use up to six months from vaccine administration - an effective method of birth control resulting in a low failure rate (i.e., hormonal contraception, condoms in combination with a spermicidal cream, male partner sterilization-vasectomy or total sexual abstinence). Oral temperature ≤37.0 degrees Celsius the day of the administration of the vaccine Pulse no greater than 100 beats per minute. Systolic blood pressure (BP) is 85 to 139 mmHg, inclusive the day of vaccination. Should not show laboratory values outside the normal range which may have clinical significance even in absence of specific signs or symptoms. Exclusion Criteria: A subject who meets any of the following criteria will be excluded from participation in this study: Positive serology for anti-HIV-Ab Positive HbBsAg Positive anti-HCV-Ab Positive for SARS-CoV-2 (either anti-S-Ab or anti-N-Ab) Acute illness, as determined by the site PI or appropriate sub-investigator, the day of vaccination. Breastfeeding women Autoimmune and hyper-inflammatory condition History of atopy (or any IgE associated condition) who had required treatment over the last 6 months; History of hypersensitivity or severe allergic reaction (e.g., anaphylaxis, generalized urticaria, angioedema, other significant reaction) to any previous licensed or unlicensed vaccines; Assumption of any immunomodulatory medication over the last 4 months (including, but not limited to, systemic corticosteroids, allergy injections, immunoglobulin, interferon, immunomodulators, cytotoxic drugs, or other similar or toxic drugs). The use of low dose topical, ophthalmic, inhaled, and intranasal steroid preparations will be permitted. Presence of self-reported or medically documented significant medical condition Presence of self-reported or medically documented significant psychiatric condition Significant cardiovascular disease needing therapy or history of myocarditis or pericarditis or heart surgery. Patients in treatment with Sartans or ACE-Inhibitors and good response to therapy may be included. Neurological or neurodevelopmental conditions (e.g., history of migraines in the past 5 years, epilepsy, stroke, seizures in the last 3 years, encephalopathy, focal neurologic deficits, Guillain-Barré syndrome, encephalomyelitis or transverse myelitis). Ongoing malignancy or recent diagnosis of malignancy in the last five years excluding basal cell and squamous cell carcinoma of the skin, which are allowed. Primary or secondary immunodeficiency of any cause. Participated in another investigational study involving vaccination of biologic compounds in the last 12 months. Currently enrolled in or plans to participate in another clinical trial with an investigational agent that will be received during the study-reporting period. Administration of immunoglobulins and/or any blood or blood products within the 4 months before the first vaccine administration or at any time during the study. Has any significant disorder of coagulation. Has any chronic liver disease, including fatty liver. Has a history of alcohol abuse or other recreational drug use within 6 months before the first vaccine administration. Has any abnormality or permanent body art (e.g., tattoo) that would interfere with the ability to observe local reactions at the injection site (deltoid region). Received or plans to receive additional vaccination within 4 weeks before or after each vaccination. Has been reported as a case (confirmed or probable) of COVID-19 from the regional health system Has any clinical conditions that, in the opinion of the site PI or appropriate sub-investigator, precludes study participation, this includes any acute, subacute, intermittent or chronic medical disease or condition that would place the subject at an unacceptable risk of injury, render the subject unable to meet the requirements of the protocol, or may interfere with the evaluation of responses or the subject's successful completion of this trial
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Simone Lanini
Organizational Affiliation
Istituto Nazionale per le Malattie Infettive "Lazzaro Spallanzani" IRCCS
Official's Role
Principal Investigator
Facility Information:
Facility Name
INMI Spallanzani
City
Rome
ZIP/Postal Code
00149
Country
Italy
Facility Name
Centro Ricerche Cliniche
City
Verona
ZIP/Postal Code
37134
Country
Italy

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
PubMed Identifier
33895322
Citation
Capone S, Raggioli A, Gentile M, Battella S, Lahm A, Sommella A, Contino AM, Urbanowicz RA, Scala R, Barra F, Leuzzi A, Lilli E, Miselli G, Noto A, Ferraiuolo M, Talotta F, Tsoleridis T, Castilletti C, Matusali G, Colavita F, Lapa D, Meschi S, Capobianchi M, Soriani M, Folgori A, Ball JK, Colloca S, Vitelli A. Immunogenicity of a new gorilla adenovirus vaccine candidate for COVID-19. Mol Ther. 2021 Aug 4;29(8):2412-2423. doi: 10.1016/j.ymthe.2021.04.022. Epub 2021 Apr 23.
Results Reference
derived

Learn more about this trial

Phase I Study to Assess the Safety and Immunology of a COVID-19 Vaccine With GRAd-COV2 Vaccine

We'll reach out to this number within 24 hrs