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Study of the Safety of Therapeutic Treatment With an Immunomodulatory Agent (N-803) in Adults With COVID-19

Phase 1b, Randomized, Blinded, Placebo-controlled Study of the Safety of Therapeutic Treatment With an Immunomodulary Agent (N-803 in Adults With COVID-19

Status
Terminated
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04385849
Enrollment
1
Registered
2020-05-13
Start date
2020-07-22
Completion date
2020-07-25
Last updated
2024-09-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

COVID-19

Brief summary

This is a phase 1b, randomized, blinded, placebo-controlled study in adult subjects with COVID-19. This clinical trial is designed to assess the safety and immunostimulatory activity of N-803.

Interventions

BIOLOGICALN-803

Recombinant human super agonist interleukin-15 (IL-15) complex

OTHERSaline

Sterile saline solution

Sponsors

ImmunityBio, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Age ≥ 18 years old. 2. Able to understand and provide a signed informed consent that fulfills the relevant Institutional Review Board (IRB) or Independent Ethics Committee (IEC) guidelines. 3. Has laboratory-confirmed positive novel coronavirus (SARS-CoV-2) test, as determined by polymerase chain reaction (PCR), or other commercial or public health assay in any specimen \< 72 hours prior to enrollment, or meets the criteria to guide the evaluation and testing of patients under investigation (PUI) for COVID-19 (https://emergency.cdc.gov/han/2020/HAN00428.asp). 4. Has a confirmed NEW score of 0-5. 5. Has at least one of the following high-risk factors associated with a higher risk of COVID-19 progression: 1. Age ≥ 60 years. 2. Hypertension currently managed by at least 1 antihypertensive medication. 3. Type 1 or 2 diabetes. 4. Chronic obstructive pulmonary disease (COPD) diagnosed per medical history. 6. Adequate respiratory and heart function, evidenced by the following laboratory results: 1. Respiratory rate (RR) \< 20 breaths per minute (bpm). 2. Heart rate (HR) \< 90 beats per minute (bpm). 3. Arterial oxygen saturation (SaO2) \> 93% on room air. 7. Agrees to the collection of nasopharyngeal (NP) swabs and venous blood per protocol. 8. Ability to participate in required study visits and participate in adequate follow-up, as required by this protocol. 9. Agreement to practice effective contraception for female subjects of child-bearing potential and non-sterile males. Female subjects of child-bearing potential must agree to use effective contraception while on study and for at least 1 month after the last dose of N-803. Non-sterile male subjects must agree to use a condom while on study and for up to 1 month after the last dose of N-803. Effective contraception includes surgical sterilization (eg, vasectomy, tubal ligation), two forms of barrier methods (eg, condom, diaphragm) used with spermicide, intrauterine devices (IUDs), oral contraceptives, and abstinence.

Exclusion criteria

1. Shortness of breath or hypoxia defined by a ratio of partial pressure of arterial oxygen to the percentage of inspired oxygen (PaO2/FiO2) ≤ 300 mmHg or signs of serious lower airway disease. 2. Signs or symptoms of acute respiratory distress syndrome (ARDS), systemic inflammatory response syndrome (SIRS)/shock, or cardiac failure; or need for supplemental oxygen. 3. Inflammatory markers (C-reactive protein \[CRP\], lactate dehydrogenase \[LDH\], d-dimer, ferritin, and IL-6) \> 1.5 × upper limit of normal (ULN). 4. Assessed by the Investigator to be unable or unwilling to comply with the requirements of the protocol. 5. Pregnant and nursing women. A negative serum or urine pregnancy test during screening prior to the first dose must be documented before N-803 is administered to a female subject of child-bearing potential.

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants With Adverse Events3 daysAEs will be assessed using Common Terminology Criteria for Adverse Events (CTCAE) V5.0

Countries

United States

Participant flow

Participants by arm

ArmCount
Experimental Arm
N-803 Recombinant human super agonist interleukin-15 (IL-15) complex N-803: Recombinant human super agonist interleukin-15 (IL-15) complex
1
Placebo Arm
Sterile saline solution Saline: Sterile saline solution
0
Total1

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyLost to Follow-up10

Baseline characteristics

CharacteristicTotalExperimental Arm
Age, Continuous70 years
STANDARD_DEVIATION 0
70 years
STANDARD_DEVIATION 0
Ethnicity (NIH/OMB)
Hispanic or Latino
1 Participants1 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
0 Participants0 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants
Race (NIH/OMB)
White
1 Participants1 Participants
Sex: Female, Male
Female
0 Participants0 Participants
Sex: Female, Male
Male
1 Participants1 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 10 / 0
other
Total, other adverse events
0 / 10 / 0
serious
Total, serious adverse events
0 / 10 / 0

Outcome results

Primary

Number of Participants With Adverse Events

AEs will be assessed using Common Terminology Criteria for Adverse Events (CTCAE) V5.0

Time frame: 3 days

Population: All randomized subjects

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Experimental ArmNumber of Participants With Adverse Events1 Participants
Placebo ArmNumber of Participants With Adverse Events0 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026