Skip to content

Study of the Efficacy and Safety of STI-5656 (Abivertinib Maleate) in Subjects Hospitalized With COVID-19

A Phase 2, Open Label, Randomized Study of the Efficacy and Safety of STI-5656 (Abivertinib Maleate) With Standard of Care Versus Standard of Care in Subjects Hospitalized With COVID-19

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04440007
Acronym
SOC
Enrollment
96
Registered
2020-06-19
Start date
2020-10-09
Completion date
2021-08-23
Last updated
2023-01-18

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

Conditions

Covid-19

Brief summary

Study to assess the safety and efficacy of STI-5656 (Abivertinib Maleate) plus SOC versus SOC in subjects hospitalized with COVID-19

Detailed description

This is a Phase 2, open-label, randomized 2-arm multicenter study to assess the safety and efficacy of STI-5656 (Abivertinib Maleate) administered orally plus Standard of Care (SOC) versus SOC in hospitalized subjects with RT-PCR confirmed SARS-CoV-2 infection and COVID-19 pneumonia (documented radiographically). Only hospitalized patients are eligible for this study.

Interventions

Abivertinib maleate is a third-generation EGFR tyrosine kinase inhibitor and BTK Inhibitor. The starting dose is 200 mg p.o. QD for up to 28 days.

OTHERStandard of Care

Standard of Care as determined by the Investigator

Sponsors

Sorrento Therapeutics, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Confirmed infection with SARS-CoV-2 per World Health Organization (WHO) criteria (including positive RT-PCR nucleic acid test of any specimen \[eg, respiratory, blood, urine, stool, or other bodily fluid\]) within 7 days of randomization * Hospitalized with COVID-19 pneumonia (documented radiographically) and oxygen saturation \<94% on room air or subject requires supplemental oxygen * Able to swallow capsules * Willing to follow contraception guidelines * Subject or family member/caregiver must have provided written informed consent which includes signing the institutional review board approved consent form prior to participating in any study related activity. However, if obtaining written informed consent is not possible, other procedures as provided in the March 27th, 2020 FDA Guidance on Conduct of Clinical Trials of Medical Products during COVID-19 Pandemic, Question 10, may be used

Exclusion criteria

* Known cardio-pulmonary resuscitation within 14 days prior to randomization * Pregnant or breast feeding * Suspected uncontrolled active bacterial, fungal, viral, or other infection (besides infection with SARS-CoV-2) * Alanine aminotransferase (ALT) ≥ 3x upper limit of normal (ULN) and total bilirubin \> 2x ULN * QTcF prolongation \>480 milliseconds * Uncontrolled or untreated symptomatic arrhythmias, myocardial infarction within the last 6 weeks, or congestive heart failure (NYHA Grade 3 or 4). Exception: Subjects with controlled, asymptomatic atrial fibrillation during screening are allowed to enroll * Treatment with a strong cytochrome P450 (CYP3A4 inhibitor (within 14 days before first dose of study drug) or inducer (within 7 days before first dose of study drug) * Received anti-rejection or immunomodulatory drugs (eg, anti-cytokines, BTK inhibitors, JAK inhibitors, PI3K inhibitors) within 30 days before randomization on study * Concurrent participation in another clinical trial involving therapeutic interventions (observational study participation is acceptable) * Any condition that confounds the ability to interpret data from the study * Relevant renal impairment (eGFR \<60 mL/min) * Any significant medical condition, laboratory abnormality or psychiatric illness that would interfere or prevent the subject from participating in the study

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Subjects Alive and Free of Respiratory Failure at Day 28Randomization to Day 28Percentage of subjects alive and free of respiratory failure at Day 28, where respiratory failure, is defined based on resource utilization of any of the following modalities: * Noninvasive positive pressure ventilation or continuous positive airway pressure * Endotracheal intubation and mechanical ventilation * Oxygen delivered by high-flow nasal cannula (heated, humidified, oxygen delivered via reinforced nasal cannula at flow rates \>20L/min with fraction of delivered oxygen ≥ 0.5) * Extracorporeal membrane oxygenation

Secondary

MeasureTime frameDescription
Percentage of Subjects Alive and Free of Respiratory Failure at Day 60Randomization to Day 60Percentage of subjects alive and free of respiratory failure at Day 60
Change in C-Reactive Protein (CRP)Day 7Mean change in CRP on Day 7
Number of Participants With Treatment-emergent Adverse EventsRandomization through study completion to 94 daysNumber of Participants with Treatment-emergent Adverse Events
All-cause Mortality at Day 60 and Day 90Day 60 and Day 90All-cause mortality at Day 60 and Day 90
Number of Days Alive Outside of Hospital up to Day 28Randomization up to Day 28Number of days alive outside of hospital up to Day 28
Partial Pressure of Oxygen in Arterial Blood and Fraction of Inspired Oxygen (PaO2/FiO2)Day 1PaO2/FiO2 at Day 1

Countries

United States

Participant flow

Participants by arm

ArmCount
Abivertinib With Standard of Care
STI-5656 (abivertinib maleate) capsule administered orally 200 mg QD up to 28 days or until hospital discharge, in addition to standard of care Abivertinib: Abivertinib maleate is a third-generation EGFR tyrosine kinase inhibitor and BTK Inhibitor. The starting dose is 200 mg p.o. QD for up to 28 days. Standard of Care: Standard of Care as determined by the Investigator
48
Placebo With Standard of Care
Oral placebo capsule administered orally QD up to 28 days or until hospital discharge, in addition to standard of care of care treatment for COVID-19 as determined appropriate by the Investigator Standard of Care: Standard of Care as determined by the Investigator
48
Total96

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event01
Overall StudyDeath72
Overall StudyDiscontinued prior to dosing02
Overall StudyInability to draw blood for labs and being transferred to a nursing facility with no transportation12
Overall StudyLost to Follow-up13
Overall StudyPhysician Decision11
Overall StudyWithdrawal by Subject21

Baseline characteristics

CharacteristicAbivertinib With Standard of CareTotalPlacebo With Standard of Care
Age, Customized
Age
59.9 years
STANDARD_DEVIATION 12.38
58.6 years
STANDARD_DEVIATION 12.63
57.4 years
STANDARD_DEVIATION 12.88
Ethnicity (NIH/OMB)
Hispanic or Latino
9 Participants19 Participants10 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
37 Participants73 Participants36 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
2 Participants4 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
2 Participants4 Participants2 Participants
Race (NIH/OMB)
Black or African American
4 Participants15 Participants11 Participants
Race (NIH/OMB)
More than one race
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
42 Participants75 Participants33 Participants
Region of Enrollment
United States
48 participants96 participants48 participants
Sex: Female, Male
Female
17 Participants34 Participants17 Participants
Sex: Female, Male
Male
31 Participants62 Participants31 Participants
Weight101.94 kg
STANDARD_DEVIATION 30.694
101.03 kg
STANDARD_DEVIATION 28.243
100.12 kg
STANDARD_DEVIATION 25.855

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
8 / 485 / 48
other
Total, other adverse events
31 / 4824 / 46
serious
Total, serious adverse events
9 / 488 / 46

Outcome results

Primary

Percentage of Subjects Alive and Free of Respiratory Failure at Day 28

Percentage of subjects alive and free of respiratory failure at Day 28, where respiratory failure, is defined based on resource utilization of any of the following modalities: * Noninvasive positive pressure ventilation or continuous positive airway pressure * Endotracheal intubation and mechanical ventilation * Oxygen delivered by high-flow nasal cannula (heated, humidified, oxygen delivered via reinforced nasal cannula at flow rates \>20L/min with fraction of delivered oxygen ≥ 0.5) * Extracorporeal membrane oxygenation

Time frame: Randomization to Day 28

Population: A total of 48 subjects in the STI-5656 group and 48 subjects in the placebo group were included in the analysis of the primary endpoint in the FAS. For a number of the excluded subjects, the reason for exclusion from the primary endpoint analysis was that they had no baseline value available.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Abivertinib With Standard of CarePercentage of Subjects Alive and Free of Respiratory Failure at Day 2840 Participants
Placebo With Standard of CarePercentage of Subjects Alive and Free of Respiratory Failure at Day 2838 Participants
Secondary

All-cause Mortality at Day 60 and Day 90

All-cause mortality at Day 60 and Day 90

Time frame: Day 60 and Day 90

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Abivertinib With Standard of CareAll-cause Mortality at Day 60 and Day 90Day 608 Participants
Abivertinib With Standard of CareAll-cause Mortality at Day 60 and Day 90Day 908 Participants
Placebo With Standard of CareAll-cause Mortality at Day 60 and Day 90Day 605 Participants
Placebo With Standard of CareAll-cause Mortality at Day 60 and Day 90Day 905 Participants
Secondary

Change in C-Reactive Protein (CRP)

Mean change in CRP on Day 7

Time frame: Day 7

ArmMeasureValue (MEDIAN)Dispersion
Abivertinib With Standard of CareChange in C-Reactive Protein (CRP)71.43 ng/mlStandard Deviation 527.102
Placebo With Standard of CareChange in C-Reactive Protein (CRP)66.67 ng/mlStandard Deviation 755.613
Secondary

Number of Days Alive Outside of Hospital up to Day 28

Number of days alive outside of hospital up to Day 28

Time frame: Randomization up to Day 28

ArmMeasureValue (LEAST_SQUARES_MEAN)
Abivertinib With Standard of CareNumber of Days Alive Outside of Hospital up to Day 2816.7 days
Placebo With Standard of CareNumber of Days Alive Outside of Hospital up to Day 2817.1 days
Secondary

Number of Participants With Treatment-emergent Adverse Events

Number of Participants with Treatment-emergent Adverse Events

Time frame: Randomization through study completion to 94 days

Population: A total of 48 subjects in the STI-5656 group and 46 subjects in the placebo group were included in the analysis of the secondary endpoint in the FAS. For a number of the excluded subjects, the reason for exclusion from the secondary endpoint analysis was that they had no baseline value available. 46 subjects were analyzed for the placebo group as 2 subjects were randomized to the placebo group who ET prior to dosing.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Abivertinib With Standard of CareNumber of Participants With Treatment-emergent Adverse Events31 Participants
Placebo With Standard of CareNumber of Participants With Treatment-emergent Adverse Events23 Participants
Secondary

Partial Pressure of Oxygen in Arterial Blood and Fraction of Inspired Oxygen (PaO2/FiO2)

PaO2/FiO2 at Day 1

Time frame: Day 1

ArmMeasureValue (MEAN)Dispersion
Abivertinib With Standard of CarePartial Pressure of Oxygen in Arterial Blood and Fraction of Inspired Oxygen (PaO2/FiO2)210.61 mmHGStandard Deviation 112.686
Placebo With Standard of CarePartial Pressure of Oxygen in Arterial Blood and Fraction of Inspired Oxygen (PaO2/FiO2)253.34 mmHGStandard Deviation 103.679
Secondary

Percentage of Subjects Alive and Free of Respiratory Failure at Day 60

Percentage of subjects alive and free of respiratory failure at Day 60

Time frame: Randomization to Day 60

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Abivertinib With Standard of CarePercentage of Subjects Alive and Free of Respiratory Failure at Day 6037 Participants
Placebo With Standard of CarePercentage of Subjects Alive and Free of Respiratory Failure at Day 6035 Participants

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