Dociparstat for the Treatment of Severe COVID-19 in Adults at High Risk of Respiratory Failure
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ClinicalTrials.gov Identifier: NCT04389840 |
Recruitment Status :
Terminated
(Due to improvement in the Coronavirus Disease 2019 (COVID-19) pandemic and low subject accrual.)
First Posted : May 15, 2020
Results First Posted : August 30, 2022
Last Update Posted : August 30, 2022
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Sponsor:
Chimerix
Information provided by (Responsible Party):
Chimerix
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Study Type | Interventional |
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Study Design | Allocation: Randomized; Intervention Model: Parallel Assignment; Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor); Primary Purpose: Treatment |
Conditions |
Coronavirus Disease 2019 (COVID-19) Acute Lung Injury Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) |
Interventions |
Drug: Dociparstat sodium Drug: Placebo |
Enrollment | 27 |
Participant Flow
Recruitment Details | |
Pre-assignment Details | Study enrollment was terminated on 20 May 2021 due to improvement in the Coronavirus Disease 2019 (COVID-19) pandemic and low subject accrual. At the time of termination, a total of 27 subjects of the planned 75 subjects had been enrolled, of which 26 subjects were treated and 22 subjects had completed the study across Cohorts 1, 2, and 3 (partial) of the Phase 2 portion of the study. |
Arm/Group Title | Cohort 1 Dociparstat | Cohort 1 Placebo | Cohort 2 Dociparstat | Cohort 2 Placebo | Cohort 3 Dociparstat | Cohort 3 Placebo |
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Subjects received 4 mg/kg of dociparstat administered as an intravenous (IV) bolus on Day 1, followed by 0.25 mg/kg/hr dociparstat by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received placebo IV bolus on Day 1, followed by placebo by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received 4 mg/kg of dociparstat administered as an intravenous (IV) bolus on Day 1, followed by 0.325 mg/kg/hr dociparstat by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received placebo IV bolus on Day 1, followed by placebo by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received 4 mg/kg of dociparstat administered as an intravenous (IV) bolus on Day 1, followed by 0.325 mg/kg/hr dociparstat by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received placebo IV bolus on Day 1, followed by placebo by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). |
Period Title: Overall Study | ||||||
Started | 6 | 6 | 8 | 4 | 2 | 1 |
Intent-to-Treat Analysis Set | 6 | 6 | 8 | 4 | 2 | 1 |
Safety Analysis Set | 6 | 6 | 8 | 3 [1] | 2 | 1 |
Completed | 4 | 5 | 8 | 3 | 1 | 1 |
Not Completed | 2 | 1 | 0 | 1 | 1 | 0 |
Reason Not Completed | ||||||
Adverse Event | 0 | 0 | 0 | 1 | 0 | 0 |
Subject request and prohibited concomitant medication | 2 | 0 | 0 | 0 | 1 | 0 |
Death | 0 | 1 | 0 | 0 | 0 | 0 |
[1]
The excluded subject was randomized to receive placebo but never received treatment due to consent withdrawal.
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Baseline Characteristics
Arm/Group Title | Cohort 1 Dociparstat | Cohort 1 Placebo | Cohort 2 Dociparstat | Cohort 2 Placebo | Cohort 3 Dociparstat | Cohort 3 Placebo | Total | |
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Subjects received 4 mg/kg of dociparstat administered as an intravenous (IV) bolus on Day 1, followed by 0.25 mg/kg/hr dociparstat by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received placebo IV bolus on Day 1, followed by placebo by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received 4 mg/kg of dociparstat administered as an intravenous (IV) bolus on Day 1, followed by 0.325 mg/kg/hr dociparstat by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received placebo IV bolus on Day 1, followed by placebo by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received 4 mg/kg of dociparstat administered as an intravenous (IV) bolus on Day 1, followed by 0.325 mg/kg/hr dociparstat by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Subjects received placebo IV bolus on Day 1, followed by placebo by continuous IV infusion for 24 hours daily for up to 7 days (starting on Day 1 and ending on Day 8 [168 hours]). | Total of all reporting groups | |
Overall Number of Baseline Participants | 6 | 6 | 8 | 3 | 2 | 1 | 26 | |
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Note: Baseline characteristics were evaluated for the Safety Analysis Set. The Intent-to-Treat Analysis Set included 4 placebo-treated subjects from Cohort 2; however, only 3 placebo-treated subjects from Cohort 2 were included in the Safety Analysis Set. The excluded subject was randomized to receive placebo but never received treatment due to consent withdrawal.
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Age, Continuous
Median (Full Range) Unit of measure: Years |
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Number Analyzed | 6 participants | 6 participants | 8 participants | 3 participants | 2 participants | 1 participants | 26 participants | |
50.5
(32 to 67)
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63.0
(47 to 70)
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62.0
(36 to 66)
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62.0
(56 to 65)
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39.5
(38 to 41)
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41
(41 to 41)
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57.0
(32 to 70)
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Sex: Female, Male
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 6 participants | 6 participants | 8 participants | 3 participants | 2 participants | 1 participants | 26 participants | |
Female |
6 100.0%
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4 66.7%
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2 25.0%
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3 100.0%
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0 0.0%
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0 0.0%
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15 57.7%
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Male |
0 0.0%
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2 33.3%
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6 75.0%
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0 0.0%
|
2 100.0%
|
1 100.0%
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11 42.3%
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Race (NIH/OMB)
Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 6 participants | 6 participants | 8 participants | 3 participants | 2 participants | 1 participants | 26 participants | |
American Indian or Alaska Native |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
|
Asian |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
1 50.0%
|
0 0.0%
|
1 3.8%
|
|
Native Hawaiian or Other Pacific Islander |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
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0 0.0%
|
|
Black or African American |
2 33.3%
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2 33.3%
|
2 25.0%
|
2 66.7%
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0 0.0%
|
1 100.0%
|
9 34.6%
|
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White |
4 66.7%
|
4 66.7%
|
4 50.0%
|
1 33.3%
|
1 50.0%
|
0 0.0%
|
14 53.8%
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More than one race |
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
|
Unknown or Not Reported |
0 0.0%
|
0 0.0%
|
2 25.0%
|
0 0.0%
|
0 0.0%
|
0 0.0%
|
2 7.7%
|
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NIAID Score (actual)
[1] Measure Type: Count of Participants Unit of measure: Participants |
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Number Analyzed | 6 participants | 6 participants | 8 participants | 3 participants | 2 participants | 1 participants | 26 participants | |
3 |
2 33.3%
|
5 83.3%
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2 25.0%
|
0 0.0%
|
2 100.0%
|
1 100.0%
|
12 46.2%
|
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4 |
4 66.7%
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1 16.7%
|
6 75.0%
|
3 100.0%
|
0 0.0%
|
0 0.0%
|
14 53.8%
|
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[1]
Measure Description:
NIAID Score (actual) was calculated using hospitalization and ventilation status at the time of randomization. The ordinal scale is an assessment of the clinical status of the participant at a given time point. Scores 3 and 4 are as follows: 3. Hospitalized, on noninvasive ventilation or high flow oxygen devices. 4. Hospitalized, requiring supplemental oxygen. |
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Body mass index
Mean (Standard Deviation) Unit of measure: Kg/m^2 |
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Number Analyzed | 6 participants | 6 participants | 8 participants | 3 participants | 2 participants | 1 participants | 26 participants | |
32.5 (6.57) | 33.9 (5.85) | 31.0 (6.17) | 36.4 (12.34) | 28.6 (5.05) | 45.4 [1] (NA) | 33.0 (6.85) | ||
[1]
There was only 1 subject in this cohort.
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Outcome Measures
Adverse Events
Limitations and Caveats
Due to improvement in the Coronavirus Disease 2019 (COVID-19) pandemic and low subject accrual, study enrollment was prematurely terminated on 20 May 2021. Therefore, formal statistical analyses were not performed, and no conclusions can be drawn about docipartstat with regards to efficacy.
More Information
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts
the PI's rights to discuss or publish trial results after the trial is completed.
Within 18 months of the completion of the Study at all sites, if no publication of the overall multi-center results has been made, institutions are entitled to publish their locally obtained results, provided the Sponsor is given opportunity to review and comment. Institution publications may be delayed up to an additional 60 days to allow Sponsor to seek patent protection.
Results Point of Contact
Name/Title: | Chief Medical Officer |
Organization: | Chimerix, Inc. |
Phone: | 919-806-1074 ext 101 |
EMail: | dmoore@chimerix.com |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Chimerix |
ClinicalTrials.gov Identifier: | NCT04389840 |
Other Study ID Numbers: |
CMX-DS-004 |
First Submitted: | May 13, 2020 |
First Posted: | May 15, 2020 |
Results First Submitted: | May 27, 2022 |
Results First Posted: | August 30, 2022 |
Last Update Posted: | August 30, 2022 |