A Phase 1/2 interventional study of AAHI-SC2 Vaccine and AAHI-SC3 Vaccine in COVID-19, sponsored by ImmunityBio, Inc.. Terminated at 1 site in South Africa. Open to participants aged 18 Years to 55 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-03-11.
Sponsored by ImmunityBio, Inc. · Phase 1/2, Interventional, and Treatment
This is a phase 1/2 open-label study assessing the safety, reactogenicity, and immunogenicity of saRNA COVID-19 boost vaccines in participants that have been previously vaccinated against or previously infected with COVID-19.
7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.
This study's enrollment of 60 is below the median of 100 across 4,099 interventional studies indexed under COVID-19.
Browse COVID-19 studies →ImmunityBio, Inc. is the lead sponsor of 82 studies on the registry; 15 are open to participants now.
Of its 23 completed or terminated interventional studies of FDA-regulated products, 17 (74%) have results posted.
Counted across the registry records on this site, refreshed daily.
Exclusion Criteria:
AAHI-SC2 on Day 1 at dosage 25 μg IM
Biological: AAHI-SC2 Vaccine
AAHI-SC2 on Day 1 at dosage 50 μg IM
Biological: AAHI-SC2 Vaccine
AAHI-SC2 on Day 1 at dosage 70 μg IM
Biological: AAHI-SC2 Vaccine
AAHI-SC3 on Day 1 at dosage 25 μg IM
Biological: AAHI-SC3 Vaccine
AAHI-SC3 on Day 1 at dosage 50 μg IM
Biological: AAHI-SC3 Vaccine
AAHI-SC3 on Day 1 at dosage 85 μg IM
Biological: AAHI-SC3 Vaccine
EUA or approved vaccine on Day 1
Biological: EUA or approved vaccine
AAHI-SC2 on Day 1 Dose TBD as determined in phase 1 study
Biological: AAHI-SC2 Vaccine
AAHI-SC3 on Day 1 Dose TBD as determined in phase 1 study
Biological: AAHI-SC3 Vaccine
AAHI-SC3 on Day 1 and 29 Dose TBD as determined in phase 1 study
Biological: AAHI-SC3 Vaccine
AAHI -SC2 self-amplifying RNA (saRNA) against SARS-CoV-2 Spike protein delivered by nanostructured lipid carrier (NLC) Vaccine
AAHI-SC3 self-amplifying RNA (saRNA) against SARS-CoV-2 Spike and nucleocapsid protein delivered by nanostructured lipid carrier (NLC) Vaccine
Janssen or Pfizer vaccines (control arm)
Phase 1 Safety - Incidence of MAAEs Through 1 Week
Incidence of medically-attended adverse events (MAAEs)
Time frame: through 1 week post final vaccine administration
Phase 1 Safety - Incidence of MAAEs Through 30 Days
Incidence of MAAEs
Time frame: through 30 days post final vaccine administration
Phase 1 Safety - Incidence of MAAEs Through 6 Months
Incidence of MAAEs
Time frame: through 6 months post final vaccine administration
Phase 1 Safety - Incidence of Solicited Local Reactogenicity AEs
Incidence and severity of solicited local reactogenicity AEs
Time frame: through 1 week after each vaccine dose
Phase 1 Safety - Incidence of Solicited Systemic Reactogenicity AEs
Incidence and severity of solicited systemic reactogenicity AEs
Time frame: through 1 week after each vaccine dose
Phase 1 Safety - Incidence of Unsolicited AEs Through 1 Week
Incidence and severity of unsolicited AEs
Time frame: through 1 week post final vaccine administration
Phase 1 Safety - Incidence of Unsolicited AEs Through 30 Days
Incidence and severity of unsolicited AEs
Time frame: through 30 days post final vaccine administration
Phase 1 Safety - Incidence of SAEs Through 1 Week
Incidence of serious adverse events (SAEs)
Time frame: through 1 week post final vaccine administration
Phase 1 Safety - Incidence of SAEs Through 30 Days
Incidence of SAEs
Time frame: through 30 days post final vaccine administration
Phase 1 Safety - Incidence of SAEs Through 6 Months
Incidence of SAEs
Time frame: through 6 months post final vaccine administration
| Milestone | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Started | 10 | 10 | 10 | 10 | 10 | 10 |
| Completed | 10 | 10 | 9 | 10 | 9 | 10 |
| Not completed | 0 | 0 | 1 | 0 | 1 | 0 |
| Withdrew: Lost to follow-up | 0 | 0 | 1 | 0 | 1 | 0 |
Incidence of medically-attended adverse events (MAAEs)
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of MAAEs Through 1 Week | 1 | 2 | 1 | 0 | 0 | 0 |
Incidence of MAAEs
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of MAAEs Through 30 Days | 2 | 2 | 2 | 2 | 0 | 1 |
Incidence of MAAEs
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of MAAEs Through 6 Months | 5 | 3 | 2 | 2 | 2 | 2 |
Incidence and severity of solicited local reactogenicity AEs
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of Solicited Local Reactogenicity AEs | 9 | 9 | 9 | 8 | 9 | 9 |
Incidence and severity of solicited systemic reactogenicity AEs
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of Solicited Systemic Reactogenicity AEs | 9 | 10 | 10 | 8 | 9 | 9 |
Incidence and severity of unsolicited AEs
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of Unsolicited AEs Through 1 Week | 4 | 1 | 1 | 1 | 1 | 3 |
Incidence and severity of unsolicited AEs
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of Unsolicited AEs Through 30 Days | 5 | 2 | 5 | 4 | 5 | 7 |
Incidence of serious adverse events (SAEs)
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of SAEs Through 1 Week | 0 | 0 | 0 | 0 | 0 | 0 |
Incidence of SAEs
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of SAEs Through 30 Days | 0 | 0 | 0 | 1 | 0 | 0 |
Incidence of SAEs
| Participants | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C |
|---|---|---|---|---|---|---|
| Phase 1 Safety - Incidence of SAEs Through 6 Months | 0 | 0 | 0 | 1 | 0 | 0 |
Collected over For 30 days after the last dose, at each study visit, the Investigator was to inquire about the occurrence of AE/SAEs since the last visit or follow-up. From 30 days after the last dose to 6 months after the last dose, at each study visit, the Investigator was to inquire about the occurrence of SAEs since the last visit or follow-up. Events were to be followed for outcome information until resolution or stabilization.. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Phase 1 Cohort 1A | 0/10 (0%) | 0/10 (0%) | 0/10 (0%) |
| Phase 1 Cohort 1B | 0/10 (0%) | 0/10 (0%) | 0/10 (0%) |
| Phase 1 Cohort 1C | 0/10 (0%) | 0/10 (0%) | 0/10 (0%) |
| Phase 1 Cohort 2A | 0/10 (0%) | 1/10 (10%) | 0/10 (0%) |
| Phase 1 Cohort 2B | 0/10 (0%) | 0/10 (0%) | 0/10 (0%) |
| Phase 1 Cohort 2C | 0/10 (0%) | 0/10 (0%) | 0/10 (0%) |
| Group 1: Cohort 1A | 0/10 (0%) | 0/10 (0%) | 9/10 (90%) |
| Group 1: Cohort 1B | 0/10 (0%) | 0/10 (0%) | 9/10 (90%) |
| Group 1: Cohort 1C | 0/10 (0%) | 0/10 (0%) | 9/10 (90%) |
| Group 1: Cohort 2A | 0/10 (0%) | 0/10 (0%) | 8/10 (80%) |
| Group 1: Cohort 2B | 0/10 (0%) | 0/10 (0%) | 9/10 (90%) |
| Group 1: Cohort 2C | 0/10 (0%) | 0/10 (0%) | 9/10 (90%) |
| Group 2: Cohort 1A | 0/10 (0%) | 0/10 (0%) | 9/10 (90%) |
| Group 2: Cohort 1B | 0/10 (0%) | 0/10 (0%) | 10/10 (100%) |
| Group 2: Cohort 1C | 0/10 (0%) | 0/10 (0%) | 10/10 (100%) |
| Group 2: Cohort 2A | 0/10 (0%) | 0/10 (0%) | 8/10 (80%) |
| Group 2: Cohort 2B | 0/10 (0%) | 0/10 (0%) | 9/10 (90%) |
| Group 2: Cohort 2C | 0/10 (0%) | 0/10 (0%) | 9/10 (90%) |
| Group 3: Cohort 1A | 0/10 (0%) | 0/10 (0%) | 5/10 (50%) |
| Group 3: Cohort 1B | 0/10 (0%) | 0/10 (0%) | 2/10 (20%) |
| Group 3: Cohort 1C | 0/10 (0%) | 0/10 (0%) | 5/10 (50%) |
| Group 3: Cohort 2A | 0/10 (0%) | 0/10 (0%) | 4/10 (40%) |
| Group 3: Cohort 2B | 0/10 (0%) | 0/10 (0%) | 5/10 (50%) |
| Group 3: Cohort 2C | 0/10 (0%) | 0/10 (0%) | 7/10 (70%) |
| Group 4: Cohort 1A | 0/10 (0%) | 0/10 (0%) | 5/10 (50%) |
| Group 4: Cohort 1B | 0/10 (0%) | 0/10 (0%) | 3/10 (30%) |
| Group 4: Cohort 1C | 0/10 (0%) | 0/10 (0%) | 2/10 (20%) |
| Group 4: Cohort 2A | 0/10 (0%) | 0/10 (0%) | 2/10 (20%) |
| Group 4: Cohort 2B | 0/10 (0%) | 0/10 (0%) | 2/10 (20%) |
| Group 4: Cohort 2C | 0/10 (0%) | 0/10 (0%) | 2/10 (20%) |
| Event | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C | Group 1: Cohort 1A | Group 1: Cohort 1B | Group 1: Cohort 1C | Group 1: Cohort 2A | Group 1: Cohort 2B | Group 1: Cohort 2C | Group 2: Cohort 1A | Group 2: Cohort 1B | Group 2: Cohort 1C | Group 2: Cohort 2A | Group 2: Cohort 2B | Group 2: Cohort 2C | Group 3: Cohort 1A | Group 3: Cohort 1B | Group 3: Cohort 1C | Group 3: Cohort 2A | Group 3: Cohort 2B | Group 3: Cohort 2C | Group 4: Cohort 1A | Group 4: Cohort 1B | Group 4: Cohort 1C | Group 4: Cohort 2A | Group 4: Cohort 2B | Group 4: Cohort 2C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Abscess limbInfections and infestations | 0/10 | 0/10 | 0/10 | 1/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| Event | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C | Group 1: Cohort 1A | Group 1: Cohort 1B | Group 1: Cohort 1C | Group 1: Cohort 2A | Group 1: Cohort 2B | Group 1: Cohort 2C | Group 2: Cohort 1A | Group 2: Cohort 1B | Group 2: Cohort 1C | Group 2: Cohort 2A | Group 2: Cohort 2B | Group 2: Cohort 2C | Group 3: Cohort 1A | Group 3: Cohort 1B | Group 3: Cohort 1C | Group 3: Cohort 2A | Group 3: Cohort 2B | Group 3: Cohort 2C | Group 4: Cohort 1A | Group 4: Cohort 1B | Group 4: Cohort 1C | Group 4: Cohort 2A | Group 4: Cohort 2B | Group 4: Cohort 2C |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HeadacheNervous system disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 7/10 | 10/10 | 10/10 | 6/10 | 8/10 | 7/10 | 1/10 | 0/10 | 1/10 | 1/10 | 0/10 | 0/10 | 1/10 | 0/10 | 1/10 | 1/10 | 0/10 | 0/10 |
| Injection site painGeneral disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 8/10 | 9/10 | 8/10 | 7/10 | 9/10 | 9/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 2/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| MyalgiaMusculoskeletal and connective tissue disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 7/10 | 9/10 | 9/10 | 6/10 | 8/10 | 7/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| ArthralgiaMusculoskeletal and connective tissue disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 6/10 | 8/10 | 8/10 | 5/10 | 8/10 | 8/10 | 0/10 | 1/10 | 1/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| ChillsGeneral disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 7/10 | 5/10 | 5/10 | 2/10 | 7/10 | 6/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| Injection site reactionGeneral disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 6/10 | 3/10 | 4/10 | 3/10 | 4/10 | 2/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| Abdominal painGastrointestinal disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 6/10 | 5/10 | 4/10 | 4/10 | 6/10 | 5/10 | 0/10 | 0/10 | 0/10 | 0/10 | 1/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| Injection site pruritusGeneral disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 4/10 | 3/10 | 5/10 | 3/10 | 4/10 | 4/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| Injection site hypoaesthesiaGeneral disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 5/10 | 1/10 | 4/10 | 5/10 | 3/10 | 4/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| FatigueGeneral disorders | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 4/10 | 4/10 | 5/10 | 3/10 | 5/10 | 4/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 | 0/10 |
| Age, Continuous(years) | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C | Total |
|---|---|---|---|---|---|---|---|
| Mean | 35.4 ± 12.52 | 28.7 ± 7.53 | 32.6 ± 9.00 | 37.2 ± 7.10 | 32.7 ± 11.44 | 29.3 ± 7.48 | 32.7 ± 9.51 |
| Sex: Female, Male(Participants) | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C | Total |
|---|---|---|---|---|---|---|---|
| Female | 8 | 8 | 8 | 5 | 6 | 10 | 45 |
| Male | 2 | 2 | 2 | 5 | 4 | 0 | 15 |
| Ethnicity (NIH/OMB)(Participants) | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C | Total |
|---|---|---|---|---|---|---|---|
| Hispanic or Latino | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Not Hispanic or Latino | 10 | 10 | 10 | 10 | 10 | 10 | 60 |
| Unknown or Not Reported | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Race (NIH/OMB)(Participants) | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C | Total |
|---|---|---|---|---|---|---|---|
| American Indian or Alaska Native | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Asian | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Native Hawaiian or Other Pacific Islander | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Black or African American | 10 | 10 | 10 | 10 | 10 | 10 | 60 |
| White | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| More than one race | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Unknown or Not Reported | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Healthy adults vaccinated with an EUA or approved vaccine against COVID-19 ≥3 months prior to enroll(Participants) | Phase 1 Cohort 1A | Phase 1 Cohort 1B | Phase 1 Cohort 1C | Phase 1 Cohort 2A | Phase 1 Cohort 2B | Phase 1 Cohort 2C | Total |
|---|---|---|---|---|---|---|---|
| Count of participants | 10 | 10 | 10 | 10 | 10 | 10 | 60 |
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ImmunityBio, Inc.