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Safety and Efficacy of C21 in Subjects With COVID-19

A Randomised, Double-blind, Placebo-controlled, Phase 2 Trial Investigating the Safety and Efficacy of C21 in Hospitalised Subjects With COVID-19 Infection Not Requiring Mechanical Ventilation

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04452435
Enrollment
206
Registered
2020-06-30
Start date
2020-07-21
Completion date
2020-10-13
Last updated
2021-06-23

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

Conditions

COVID-19

Keywords

COVID-19

Brief summary

This is a randomised, double-blind, placebo-controlled phase 2 trial investigating the safety and efficacy of C21 in subjects who are hospitalised with COVID-19 infection, but not in need of mechanical invasive or non-invasive ventilation. In total, approximately 100 subjects will be enrolled and randomised to receive twice daily oral administration of either standard of care (SoC) + placebo (N=50) or SoC + C21 (N=50). Subjects will be treated for 7 days.

Interventions

DRUGC21

C21

DRUGPlacebo

Placebo

Sponsors

Orphan Reach Ltd.
CollaboratorINDUSTRY
Vicore Pharma AB
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 70 Years
Healthy volunteers
No

Inclusion criteria

1. Written informed consent, consistent with ICH-GCP R2 and local laws, obtained before the initiation of any trial related procedure 2. Diagnosis of coronavirus (SARS-CoV)-2 infection confirmed by polymerase chain reaction (PCR) test \< 4 days before Visit 1 with signs of an acute respiratory infection 3. Age \> 18 and \< 70 years 4. CRP \> 50 and \< 150 mg/l 5. Admitted to a hospital or controlled facility (home quarantine is not sufficient) 6. In the opinion of the Investigator, the subject will be able to comply with the requirements of the protocol

Exclusion criteria

1. Any previous experimental treatment for COVID-19 2. Need for mechanical invasive or non-invasive ventilation 3. Concurrent respiratory disease such as COPD (chronic obstructive pulmonary disease), IPF and/or intermittent, persistent or more severe asthma requiring daily therapy or any subjects that have had an asthma flare requiring corticosteroids in the 4 weeks (28 days) prior to COVID-19 diagnosis 4. Participation in any other interventional trial within 3 months prior to Visit 1 5. Any of the following findings at Visit 1: * Positive results for hepatitis B surface antigen (HBsAg), hepatitis C virus antibody (HCVAb) or human immunodeficiency virus 1+2 antigen/antibody (HIV 1+2 Ag/Ab * Positive pregnancy test (see Section 8.2.3) 6. Clinically significant abnormal laboratory value at Visit 1 indicating a potential risk for the subject if enrolled in the trial as evaluated by the Investigator 7. Concurrent serious medical condition with special attention to cardiac or ophthalmic conditions (e.g. contraindications to cataract surgery), which in the opinion of the Investigator makes the subject inappropriate for this trial 8. Malignancy within the past 3 years with the exception of in situ removal of basal cell carcinoma and cervical intraepithelial neoplasia grade I 9. Treatment with any of the medications listed below within 1 week prior to Visit 1: 1. Strong Cytochrome p450 (CYP) 3A4 inducers (e.g. rifampicin, phenytoin, St. John's Wort, phenobarbital, rifabutin, carbamazepine, anti HIV drugs, barbiturates) 2. Warfarin 10. Pregnant or breast-feeding female subjects 11. Female subjects of childbearing potential not willing to use contraceptive methods as described in Section 5.3.1 12. Male subjects not willing to use contraceptive methods as described in Section 5.3.1 13. Subjects known or suspected of not being able to comply with this trial protocol (e.g. due to alcoholism, drug dependency or psychological disorder)

Design outcomes

Primary

MeasureTime frameDescription
Change From Baseline in C-reactive Protein (CRP) After Treatment With C21 200 mg Daily Dose (100 mg b.i.d.)Treatment period of 7 days (Day 1 to Day 8)Change in C-reactive protein (CRP) from baseline to the average of the last two assessments in the treatment period

Secondary

MeasureTime frameDescription
Change From Baseline in IL-6Treatment period of 7 days (Day 1 to Day 8)Change in IL-6 from baseline to the average of the last two assessments during the treatment period
Change From Baseline in IL-10Treatment period of 7 days (Day 1 to Day 8)Change in IL-10 from baseline to the average of the last two assessments during the treatment period
Change From Baseline in TNFTreatment period of 7 days (Day 1 to Day 8)Change in TNF from baseline to the average of the last two assessments during the treatment period.
Change From Baseline in CA125Treatment period of 7 days (Day 1 to Day 8)Change in CA125 from baseline to the average of the last two assessments in the treatment period
Change From Baseline in FerritinTreatment period of 7 days (Day 1 to Day 8)Change in Ferritin from baseline to the average of the last two assessments during the treatment period.
Change From Baseline in Body TemperatureTreatment period of 7 days ((Day 1 to Day 8)Change in body temperature from baseline to the average of the last two assessments in the treatment period
Number of Subjects Not in Need of Mechanical Invasive or Non-invasive VentilationTreatment period of 7 days (Day 1 to Day 8)Number of subjects not in need of mechanical invasive or non-invasive ventilation during the treatment period
Time to Need of Mechanical Invasive or Non-invasive VentilationTreatment period of 7 daysTime to need of mechanical invasive or non-invasive ventilation during treatment period
Time on Oxygen Supply (for Those Not Needing Mechanical Invasive or Non-invasive Ventilation)Treatment period of 7 days (Day 1 to Day 8)Time on oxygen supply during the treatment period (for those not needing mechanical invasive or non-invasive ventilation)
Adverse EventsDay 1 to end-of-trial (Visit 9)Adverse events were reported from signing of informed consent until end-of-trial visit. No AEs were reported from signing of informed consent until randomization, except for 2 fatal SAEs described under Adverse events.
Number of Subjects Not in Need of Oxygen SupplyEnd-of treatment, Day 7 or 8Number of subjects not in need of oxygen supply at the end of treatment

Countries

India, United Kingdom

Participant flow

Pre-assignment details

96 enrolled subjects were screening failures because inclusion criteria 4 was not met. 2 enrolled subjects decided to withdraw from the trial before randomization. 2 subjects died before randomization (pneumonia). The remaining 106 subjects were randomized to trial treatment.

Participants by arm

ArmCount
C21 Treatment
Oral C21 treatment 100 mg twice daily for 7 days
51
Placebo Treatment
Oral placebo treatment twice daily for 7 days
55
Total106

Baseline characteristics

CharacteristicPlacebo TreatmentC21 TreatmentTotal
Age, Continuous51.1 years54.3 years52.6 years
Body mass index25.1 kg/m^225.4 kg/m^225.2 kg/m^2
CRP value ≤ median22 Participants24 Participants46 Participants
CRP value > median25 Participants21 Participants46 Participants
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants0 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
55 Participants51 Participants106 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Height166.0 cm166.1 cm166.1 cm
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
55 Participants51 Participants106 Participants
Race (NIH/OMB)
Black or African American
0 Participants0 Participants0 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
0 Participants0 Participants0 Participants
Region of Enrollment
India
55 participants51 participants106 participants
Sex: Female, Male
Female
13 Participants13 Participants26 Participants
Sex: Female, Male
Male
42 Participants38 Participants80 Participants
Supplemental oxygen use at baseline32 Participants29 Participants61 Participants
Weight69.2 kg70.1 kg69.6 kg

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
1 / 513 / 552 / 100
other
Total, other adverse events
30 / 5136 / 550 / 100
serious
Total, serious adverse events
1 / 513 / 552 / 100

Outcome results

Primary

Change From Baseline in C-reactive Protein (CRP) After Treatment With C21 200 mg Daily Dose (100 mg b.i.d.)

Change in C-reactive protein (CRP) from baseline to the average of the last two assessments in the treatment period

Time frame: Treatment period of 7 days (Day 1 to Day 8)

Population: Full analysis set. A total of 45 subjects in the C21 group and 46 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 (LEAST_SQUARES_MEAN)
C21 TreatmentChange From Baseline in C-reactive Protein (CRP) After Treatment With C21 200 mg Daily Dose (100 mg b.i.d.)0.19 mg/L
Placebo TreatmentChange From Baseline in C-reactive Protein (CRP) After Treatment With C21 200 mg Daily Dose (100 mg b.i.d.)0.22 mg/L
p-value: =0.4891ANCOVA
Comparison: A subgroup analyses was performed in subjects with supplemental oxygen use at baseline. A total of 26 subjects in the C21 group and 27 in the placebo group were included in the analysis of change in CRP from baseline to the mean of the last 2 non-missing scheduled assessments during the treatment period by baseline supplemental oxygen use.p-value: =0.0881ANCOVA
Secondary

Adverse Events

Adverse events were reported from signing of informed consent until end-of-trial visit. No AEs were reported from signing of informed consent until randomization, except for 2 fatal SAEs described under Adverse events.

Time frame: Day 1 to end-of-trial (Visit 9)

Population: Safety analysis set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
C21 TreatmentAdverse Events31 Participants
Placebo TreatmentAdverse Events37 Participants
Secondary

Change From Baseline in Body Temperature

Change in body temperature from baseline to the average of the last two assessments in the treatment period

Time frame: Treatment period of 7 days ((Day 1 to Day 8)

Population: Subjects with measurements were included in the analysis for the full analysis set.

ArmMeasureValue (LEAST_SQUARES_MEAN)
C21 TreatmentChange From Baseline in Body Temperature-0.11 °C
Placebo TreatmentChange From Baseline in Body Temperature-0.34 °C
p-value: =0.0492ANCOVA
Secondary

Change From Baseline in CA125

Change in CA125 from baseline to the average of the last two assessments in the treatment period

Time frame: Treatment period of 7 days (Day 1 to Day 8)

Population: Subjects with measurements were included in the analysis for the full analysis set.

ArmMeasureValue (LEAST_SQUARES_MEAN)
C21 TreatmentChange From Baseline in CA1251.16 u/mL
Placebo TreatmentChange From Baseline in CA1251.17 u/mL
p-value: =0.9418ANCOVA
Secondary

Change From Baseline in Ferritin

Change in Ferritin from baseline to the average of the last two assessments during the treatment period.

Time frame: Treatment period of 7 days (Day 1 to Day 8)

Population: Subjects with measurements were included in the analysis for the full analysis set.

ArmMeasureValue (LEAST_SQUARES_MEAN)
C21 TreatmentChange From Baseline in Ferritin0.75 ng/mL
Placebo TreatmentChange From Baseline in Ferritin0.74 ng/mL
p-value: =0.9733ANCOVA
Secondary

Change From Baseline in IL-10

Change in IL-10 from baseline to the average of the last two assessments during the treatment period

Time frame: Treatment period of 7 days (Day 1 to Day 8)

Population: Subjects with measurements were included in the analysis for the full analysis set.

ArmMeasureValue (LEAST_SQUARES_MEAN)
C21 TreatmentChange From Baseline in IL-100.66 pg/mL
Placebo TreatmentChange From Baseline in IL-100.73 pg/mL
p-value: =0.5355ANCOVA
Secondary

Change From Baseline in IL-6

Change in IL-6 from baseline to the average of the last two assessments during the treatment period

Time frame: Treatment period of 7 days (Day 1 to Day 8)

Population: Subjects with measurements were included in the analysis for the full analysis set.

ArmMeasureValue (LEAST_SQUARES_MEAN)
C21 TreatmentChange From Baseline in IL-60.73 pg/mL
Placebo TreatmentChange From Baseline in IL-60.73 pg/mL
p-value: =0.9923ANCOVA
Secondary

Change From Baseline in TNF

Change in TNF from baseline to the average of the last two assessments during the treatment period.

Time frame: Treatment period of 7 days (Day 1 to Day 8)

Population: Subjects with measurements were included in the analysis for the full analysis set.

ArmMeasureValue (LEAST_SQUARES_MEAN)
C21 TreatmentChange From Baseline in TNF0.91 pg/mL
Placebo TreatmentChange From Baseline in TNF1.01 pg/mL
p-value: =0.4738ANCOVA
Secondary

Number of Subjects Not in Need of Mechanical Invasive or Non-invasive Ventilation

Number of subjects not in need of mechanical invasive or non-invasive ventilation during the treatment period

Time frame: Treatment period of 7 days (Day 1 to Day 8)

Population: Full analysis set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
C21 TreatmentNumber of Subjects Not in Need of Mechanical Invasive or Non-invasive Ventilation50 Participants
Placebo TreatmentNumber of Subjects Not in Need of Mechanical Invasive or Non-invasive Ventilation53 Participants
p-value: =0.6088Regression, Logistic
Secondary

Number of Subjects Not in Need of Oxygen Supply

Number of subjects not in need of oxygen supply at the end of treatment

Time frame: End-of treatment, Day 7 or 8

Population: Full analysis set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
C21 TreatmentNumber of Subjects Not in Need of Oxygen Supply37 Participants
Placebo TreatmentNumber of Subjects Not in Need of Oxygen Supply30 Participants
p-value: =0.0568Regression, Logistic
Secondary

Time on Oxygen Supply (for Those Not Needing Mechanical Invasive or Non-invasive Ventilation)

Time on oxygen supply during the treatment period (for those not needing mechanical invasive or non-invasive ventilation)

Time frame: Treatment period of 7 days (Day 1 to Day 8)

Population: Full analysis set

ArmMeasureValue (MEDIAN)
C21 TreatmentTime on Oxygen Supply (for Those Not Needing Mechanical Invasive or Non-invasive Ventilation)5.0 days
Placebo TreatmentTime on Oxygen Supply (for Those Not Needing Mechanical Invasive or Non-invasive Ventilation)5.0 days
p-value: =0.8588Wilcoxon (Mann-Whitney)
Secondary

Time to Need of Mechanical Invasive or Non-invasive Ventilation

Time to need of mechanical invasive or non-invasive ventilation during treatment period

Time frame: Treatment period of 7 days

Population: Subjects with measurements were included in the analysis for the full analysis set.

ArmMeasureValue (MEAN)
C21 TreatmentTime to Need of Mechanical Invasive or Non-invasive Ventilation60.0 hours
Placebo TreatmentTime to Need of Mechanical Invasive or Non-invasive Ventilation77.925 hours
p-value: =0.5757Log Rank
Post Hoc

Oxygen Supplementation at Day 14

Number of subjects requiring oxygen supplementation at Day 14

Time frame: Follow-up Day 14 (7 days after end-of-treatment)

Population: Full analysis set

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
C21 TreatmentOxygen Supplementation at Day 141 Participants
Placebo TreatmentOxygen Supplementation at Day 1411 Participants
p-value: =0.003Chi-squared

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026