ClinicalTrials.gg
CompletedNCT05285384Updated Aug 31, 2023

Immunogenicity and Safety of a Booster Dose of the SpikoGen Vaccine in Kidney Transplant Recipients After Two Doses of Sinopharm Vaccine

An interventional study of SARS-CoV-2 recombinant spike protein + Advax-SM adjuvant in COVID-19, sponsored by Cinnagen. Completed at 1 site in Iran, Islamic Republic of. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-08-31.

Sponsored by Cinnagen · Not applicable, Interventional, and Prevention

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Phase
Not applicable
Study type
Interventional
Enrollment
43
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 43 studies in COVID-19 with a site in Iran, Islamic Republic of — none open to participants now, none under way, none of them phase 3. COVID-19 · Iran, Islamic Republic of.

Enrollment
19th of 33
43 · median 50
Started
2022
with 1 other
No phase
11 of 43
none open now
Registered
40th of 43
by date
Lead sponsor
5 of 43
Cinnagen

Among the 43 studies in COVID-19 with a site in Iran, Islamic Republic of, this one is the 19th largest by enrollment of the 33 interventional ones that give a count, is one of 2 that started in 2022, is one of 11 with no phase, and was the 40th registered.

COVID-19

7,992 studies on the registry are indexed under COVID-19; 466 are open to participants now.

Browse COVID-19 studies →

Open to participants now

None of the 43 studies in COVID-19 with a site in Iran, Islamic Republic of is open now. The open studies under COVID-19, anywhere →

Who these studies take

Of the 356 COVID-19 studies recruiting now, 206 (58%) set no upper age limit and 83 (23%) stop at 75 or younger; 91 take children under 18; 135 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →

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Download CSVNarrow it in search →With an account: the 43 studies in COVID-19 with a site in Iran, Islamic Republic of as a file.
02

Study summary

This is an open-label, single-arm clinical trial designed to evaluate the immunogenicity and safety of a booster dose of an adjuvanted recombinant SARS-CoV-2 spike protein subunit vaccine (SpikoGen) produced by CinnaGen Co. in kidney transplant recipients after two doses of Sinopharm's inactivated virus vaccine. A total of 100 adult individuals receive a single dose of the SpikoGen COVID-19 vaccine at 1 to 3 months after the second dose of the Sinopharm COVID-19 vaccine. The injection is given in the deltoid muscle of the non-dominant arm. For immunogenicity assessments, blood samples will be collected one month after the booster injection. For safety assessments, all participants will be followed up for one month.

Study hypotheses include:

  1. A booster dose of the SpikoGen COVID-19 vaccine induces strong immunogenicity against SARS-CoV-2 in adult kidney transplant recipients who were fully vaccinated with Sinopharm COVID-19 vaccine.
  2. A booster dose of the SpikoGen COVID-19 vaccine is safe and tolerable in adult kidney transplant recipients who were fully vaccinated with Sinopharm COVID-19 vaccine.
03

Conditions studied

  • COVID-19

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Keywords

  • COVID-19
  • SARS-COV-2
  • Recombinant protein
  • Spike
  • Advax-SM
  • Advax
  • Vaccine
  • Adjuvant
  • Kidney Transplant
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Male or female ≥18 years
  • Willing and able to comply with all study requirements, including scheduled visits, intervention, and laboratory tests
  • Kidney transplant recipients who had received two doses of Sinopharm vaccine after transplantation
  • Females must not be pregnant or breastfeeding
  • At least six months should have passed from the time of transplantation
  • Between 1 to 3 months should have passed from the second dose of Sinopharm vaccine

Exclusion criteria

Exclusion Criteria:

  • Subjects with signs of active SARS-CoV-2 infection at the screening visit
  • Subjects with a history of SARS-CoV-2 infection based on a positive PCR test result after the second dose of the primary vaccination
  • Subjects with an active CMV infection that requires treatment
  • Subjects who have received rituximab within 6 months prior to the screening visit
  • Subjects who have received intravenous immune globulin (IVIG) within 6 months prior to the screening visit
  • Subjects who have a history of severe allergic reactions (e.g., anaphylaxis) to the study vaccine, any components of the study interventions, or any pharmaceutical products.
  • Subjects who have received any other products within 30 days prior to the screening visit or intend to participate in any other clinical studies during the period of this study.
  • Subjects who have experienced transplant rejection within 30 days prior to the screening visit
  • Subjects with any condition that may increase the risk of participating in the study or may interfere with the evaluation of the primary endpoints of the study in the investigator's opinion.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
43 participants (actual)

Study arms

  • Experimental
    SpikoGen COVID-19 Vaccine

    Biological: SARS-CoV-2 recombinant spike protein + Advax-SM adjuvant

Interventions

06

What researchers measure

Primary outcomes

  1. Percentage of participants with seroconversion for S1 binding IgG antibodies

    As measured by ELISA

    Time frame: One month after the booster dose

  2. Percentage of participants with seroconversion for SARS-CoV-2 neutralizing antibodies

    As measured by ELISA

    Time frame: One month after the booster dose

Secondary outcomes

  1. Geometric mean fold rise (GMFR) for S1 binding IgG antibodies

    As measured by ELISA

    Time frame: One month after the booster dose

  2. Geometric mean fold rise (GMFR) for S1 binding IgG antibodies in subjects either with or without antibody responses at baseline

    As measured by ELISA

    Time frame: One month after the booster dose

  3. Percentage of participants with seroconversion for S1 binding IgG antibodies in subjects either with or without antibody responses at baseline

    As measured by ELISA

    Time frame: One month after the booster dose

  4. Geometric mean fold rise (GMFR) for SARS-CoV-2 neutralizing antibodies

    As measured by ELISA

    Time frame: One month after the booster dose

  5. Geometric mean fold rise (GMFR) for SARS-CoV-2 neutralizing antibodies in subjects either with or without antibody responses at baseline

    As measured by ELISA

    Time frame: One month after the booster dose

  6. Percentage of participants with seroconversion for SARS-CoV-2 neutralizing antibodies in subjects either with or without antibody responses at baseline

    As measured by ELISA

    Time frame: One month after the booster dose

  7. Change in T-cell IFN-γ secretion from baseline to one month after the booster dose

    As measured by IGRA

    Time frame: Baseline and one month after the booster dose

  8. Incidence of solicited adverse events

    Injection site pain, erythema, swelling, and induration, axillary swelling or tenderness ipsilateral to the side of injection, fever (oral temperature), headache, fatigue, myalgia, arthralgia, nausea, vomiting, and chills, as reported by the study participants on electronic diaries, and as defined using system organ classes and preferred terms of the Medical Dictionary for Regulatory Activities (MedDRA)

    Time frame: For 7 days after the booster dose

  9. Incidence of unsolicited adverse events

    As reported by the study participants on electronic diaries, and as defined using system organ classes and preferred terms of the Medical Dictionary for Regulatory Activities (MedDRA)

    Time frame: For one month after the booster dose

07

Study locations

1 site
  • Shaheed Labbafinezhad Hospital
    Tehran, Iran, Islamic Republic of
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Feb 2022 to primary completion in Mar 2022, 1 month.

Of 138 industry-sponsored interventional studies with no phase under COVID-19, half reached primary completion within 5 months of starting (the median), counting those still running; a quarter within 2 and three quarters within 11. This study's 1 month is below that.

Counting every sponsor, half of 1,476 studies reached it within 9 months; a quarter within 3 and three quarters within 19.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 9, 2022
First posted
Mar 17, 2022
StartActual
Feb 4, 2022
Primary completionActual
Mar 30, 2022
CompletionActual
Mar 30, 2022
Last update
Aug 31, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 31, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT05285384
Lead sponsor
Cinnagen
Responsible party
Sponsor
First posted
Mar 17, 2022
Start date
Feb 4, 2022
Primary completion
Mar 30, 2022
Completion
Mar 30, 2022
Last update
Aug 31, 2023

Study contacts

Mohsen Nafar, M.D.
principal investigator · Shahid Beheshti University of Medical Sciences

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2023. You cannot join it, but the record below documents what was studied.

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Discussion

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