Off-the-shelf NK Cells (KDS-1000) as Immunotherapy for COVID-19
Primary Purpose
Covid19
Status
Withdrawn
Phase
Phase 1
Locations
Study Type
Interventional
Intervention
KDS-1000
Placebo
Sponsored by

About this trial
This is an interventional treatment trial for Covid19 focused on measuring Cell Therapy, COVID-19, Natural Killer Cells, NK Cells, Off-the-shelf
Eligibility Criteria
Inclusion Criteria:
- Patients are 18-70 years of age;
Patients must have at least one of the following risk factors for developing severe COVID-19 disease:
- Age 50 to 70 years;
- Obesity (body mass index (BMI) of 30 or greater);
- Hypertension;
- Current smoker;
- Diabetes mellitus (Type 1 or type 2);
- Stable cardiac disease.
- Experiencing symptoms of mild to moderate COVID-19 not requiring supplemental oxygen;
- Having confirmed infection with SARS-CoV-2, defined as detection of SARS-CoV-2 from nasopharyngeal swab or lower respiratory tract specimen;
- Karnofsky Performance Score ≥70%;
- Enrolled within the first 4 days of onset of symptoms;
- Able and willing to comply with the protocol for duration of the study, including 24 hour hospitalization for study drug administration and monitoring, and compliance with follow-up visit schedule;
- Signed IRB approved informed consent.
Exclusion Criteria:
Patient is at high-risk for severe COVID-19 due to co-morbidities defined as:
- Underlying lung disease such as emphysema, chronic lung disease, COPD, asthma, chronic bronchiectasis or respiratory failure requiring baseline oxygen (O2) support;
- Immunocompromised host status due to cancer, transplant, or other causes of immunodeficiency;
Immunosuppressive therapy, including but not limited to the following:
- Corticosteroids (except topical corticosteroids);
- Interleukin (IL)-6 or Tumor necrosis factor alpha (TNFα) blockade;
- Other immunotherapies.
Patient with the following signs of abnormal organ or bone marrow function as defined below:
- AST(SGOT) and/or ALT(SGPT) > 3 x upper limit of normal (ULN);
- Serum (total) bilirubin > 1.5 x ULN;
- Creatinine Clearance ≤ 30 mL/min (by Modification of Diet in Renal Disease (MDRD) formula);
- Hemoglobin < 9 g/dL;
- Thrombocytes ≤ 75.000/uL;
- Absolute neutrophil count (ANC) ≤ 1.500/uL;
- Prothrombin time (PT) or activated partial thromboplastin (aPTT) time >1.5 × ULN;
- Patient has been admitted to the (ICU);
- Patients with QT prolongation, history of "torsades de pointes" or ventricular arrhythmia (if they are scheduled to receive diphenhydramine);
- Patient with a known history of allergic reactions to any constituent of the product, including a known history of allergic reactions to cellular products or DMSO;
- Pregnant (positive pregnancy test) or breast-feeding female patients;
- Women of childbearing potential who are sexually active and men who have sexual contact with a female of childbearing potential: not willing to use reliable methods of contraception (oral contraceptives, intrauterine device, hormone implants, contraceptive injection or abstinence) up to 90 days post injection of study medication;
- Participation in other COVID-19 studies involving experimental treatments or vaccines for COVID-19. Participation in other observational studies could be allowed if they do not interfere with protocol compliance or blood draws;
- Patients with a history or current evidence of alcohol or drug abuse or dependence, or recreational use of illicit drugs including use of medical marijuana;
- Vulnerable populations such as those currently incarcerated or homeless;
- Any other condition which in the opinion of the investigator makes the patient ineligible for participation in the study.
Sites / Locations
Arms of the Study
Arm 1
Arm 2
Arm Type
Experimental
Placebo Comparator
Arm Label
KDS-1000
Control
Arm Description
NK cells expanded ex vivo using PM21 membrane particles:
0.9% Normal Saline
Outcomes
Primary Outcome Measures
Determine the safety of KDS-1000 given at low and high doses compared to placebo by collecting the rate and severity of adverse events (AE)
Rate and severity of AE.
Secondary Outcome Measures
Determine the efficacy KDS-1000 given at low and high doses compared to placebo by COVID-19 specific questionnaire.
Improvement in COVID-19 disease symptoms/progression of disease.
Determine the efficacy KDS-1000 given at low and high doses compared to placebo by measurement of SARS-CoV-2 clearance.
Determined by real time reverse transcription polymerase chain reaction (rRT-PCR).
Determine the safety of KDS-1000 given at low and high doses compared to placebo by collecting the rate and severity of AE.
Rate and severity of AE.
Full Information
1. Study Identification
Unique Protocol Identification Number
NCT04797975
Brief Title
Off-the-shelf NK Cells (KDS-1000) as Immunotherapy for COVID-19
Official Title
A Phase 1/2a Multicenter Randomized Double-blind Placebo-controlled Trial of Off-the-shelf Natural Killer Cells (KDS-1000) as Immunotherapy for Adult Patients With Mild to Moderate COVID-19 Symptoms at Risk for Complications
Study Type
Interventional
2. Study Status
Record Verification Date
March 2021
Overall Recruitment Status
Withdrawn
Why Stopped
The sponsor decided to withdraw this study
Study Start Date
December 2020 (Anticipated)
Primary Completion Date
April 2021 (Anticipated)
Study Completion Date
April 2021 (Anticipated)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Kiadis Pharma
4. Oversight
Studies a U.S. FDA-regulated Drug Product
Yes
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes
5. Study Description
Brief Summary
It is hypothesized that immunotherapy with off-the-shelf NK cells (KDS-1000) early in the course of COVID-19 disease is safe and may augment innate immunity, thereby limiting disease progression and improving survival.
Detailed Description
Several publications have suggested a potential role of NK cells, an essential part of the early innate response system, in the management of viral infections like COVID-19. Clinical data has shown that COVID-19 disease severity is correlated with a reduction in the number of NK cells, exhaustion of NK cells and the lack of certain mature, potent NK cell phenotypes. The power of NK cells to fight various other viral infections, such as caused by CMV, HBV and hepatitis C virus (HCV), influenza virus and human immunodeficiency virus (HIV) have been well described, with a durable change in the NK cell profile towards those more mature and potent phenotypes in recovered patients. In view of the lack of (functional) NK cells in patients with COVID-19, adoptive NK cell therapy with KDS-1000 cells may improve survival and reduce rates of disease progression from SARS-CoV-2 infection. Adoptive transfer of expanded NK cells (KDS-1000) early in the course of disease may augment innate immunity, thereby limiting disease progression and could confer a survival benefit to patients infected with SARS-CoV-2.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Covid19
Keywords
Cell Therapy, COVID-19, Natural Killer Cells, NK Cells, Off-the-shelf
7. Study Design
Primary Purpose
Treatment
Study Phase
Phase 1, Phase 2
Interventional Study Model
Parallel Assignment
Masking
ParticipantInvestigator
Allocation
Randomized
Enrollment
0 (Actual)
8. Arms, Groups, and Interventions
Arm Title
KDS-1000
Arm Type
Experimental
Arm Description
NK cells expanded ex vivo using PM21 membrane particles:
Arm Title
Control
Arm Type
Placebo Comparator
Arm Description
0.9% Normal Saline
Intervention Type
Biological
Intervention Name(s)
KDS-1000
Intervention Description
Non-randomized part of study:
At the beginning of each dose level (Cohort), 3 patients will receive KDS-1000. These initial patients will be enrolled in a staggered manner to ensure detection of any early safety signals.
Randomized part of the study (Can start when there are no safety concerns in the non-randomized cohorts):
Cohort 1: Low Dose, 2x10E8 cells/dose
Cohort 2: High Dose, 1x10E9 cells/dose
Intervention Type
Other
Intervention Name(s)
Placebo
Intervention Description
0.9% Normal Saline
Primary Outcome Measure Information:
Title
Determine the safety of KDS-1000 given at low and high doses compared to placebo by collecting the rate and severity of adverse events (AE)
Description
Rate and severity of AE.
Time Frame
28 Days
Secondary Outcome Measure Information:
Title
Determine the efficacy KDS-1000 given at low and high doses compared to placebo by COVID-19 specific questionnaire.
Description
Improvement in COVID-19 disease symptoms/progression of disease.
Time Frame
90 Days
Title
Determine the efficacy KDS-1000 given at low and high doses compared to placebo by measurement of SARS-CoV-2 clearance.
Description
Determined by real time reverse transcription polymerase chain reaction (rRT-PCR).
Time Frame
28 days
Title
Determine the safety of KDS-1000 given at low and high doses compared to placebo by collecting the rate and severity of AE.
Description
Rate and severity of AE.
Time Frame
90 Days
10. Eligibility
Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
70 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Patients are 18-70 years of age;
Patients must have at least one of the following risk factors for developing severe COVID-19 disease:
Age 50 to 70 years;
Obesity (body mass index (BMI) of 30 or greater);
Hypertension;
Current smoker;
Diabetes mellitus (Type 1 or type 2);
Stable cardiac disease.
Experiencing symptoms of mild to moderate COVID-19 not requiring supplemental oxygen;
Having confirmed infection with SARS-CoV-2, defined as detection of SARS-CoV-2 from nasopharyngeal swab or lower respiratory tract specimen;
Karnofsky Performance Score ≥70%;
Enrolled within the first 4 days of onset of symptoms;
Able and willing to comply with the protocol for duration of the study, including 24 hour hospitalization for study drug administration and monitoring, and compliance with follow-up visit schedule;
Signed IRB approved informed consent.
Exclusion Criteria:
Patient is at high-risk for severe COVID-19 due to co-morbidities defined as:
Underlying lung disease such as emphysema, chronic lung disease, COPD, asthma, chronic bronchiectasis or respiratory failure requiring baseline oxygen (O2) support;
Immunocompromised host status due to cancer, transplant, or other causes of immunodeficiency;
Immunosuppressive therapy, including but not limited to the following:
Corticosteroids (except topical corticosteroids);
Interleukin (IL)-6 or Tumor necrosis factor alpha (TNFα) blockade;
Other immunotherapies.
Patient with the following signs of abnormal organ or bone marrow function as defined below:
AST(SGOT) and/or ALT(SGPT) > 3 x upper limit of normal (ULN);
Serum (total) bilirubin > 1.5 x ULN;
Creatinine Clearance ≤ 30 mL/min (by Modification of Diet in Renal Disease (MDRD) formula);
Hemoglobin < 9 g/dL;
Thrombocytes ≤ 75.000/uL;
Absolute neutrophil count (ANC) ≤ 1.500/uL;
Prothrombin time (PT) or activated partial thromboplastin (aPTT) time >1.5 × ULN;
Patient has been admitted to the (ICU);
Patients with QT prolongation, history of "torsades de pointes" or ventricular arrhythmia (if they are scheduled to receive diphenhydramine);
Patient with a known history of allergic reactions to any constituent of the product, including a known history of allergic reactions to cellular products or DMSO;
Pregnant (positive pregnancy test) or breast-feeding female patients;
Women of childbearing potential who are sexually active and men who have sexual contact with a female of childbearing potential: not willing to use reliable methods of contraception (oral contraceptives, intrauterine device, hormone implants, contraceptive injection or abstinence) up to 90 days post injection of study medication;
Participation in other COVID-19 studies involving experimental treatments or vaccines for COVID-19. Participation in other observational studies could be allowed if they do not interfere with protocol compliance or blood draws;
Patients with a history or current evidence of alcohol or drug abuse or dependence, or recreational use of illicit drugs including use of medical marijuana;
Vulnerable populations such as those currently incarcerated or homeless;
Any other condition which in the opinion of the investigator makes the patient ineligible for participation in the study.
12. IPD Sharing Statement
Plan to Share IPD
No
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Off-the-shelf NK Cells (KDS-1000) as Immunotherapy for COVID-19
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