Clinical trial NCT04343989: A Randomized Placebo-controlled Safety and Dose-finding Study for the Use of the IL-6 Inhibitor Clazakizumab in Patients With Life-threatening COVID-19 Infection
Official title: A Randomized Placebo-controlled Safety and Dose-finding Study for the Use of the IL-6 Inhibitor Clazakizumab in Patients With Life-threatening COVID-19 Infection
Study type: INTERVENTIONAL
Overall status: COMPLETED
Phase: PHASE2
Conditions: COVID-19
Lead sponsor: NYU Langone Health
Sponsor class: OTHER
First posted: 2020-04-14
Enrollment: 178
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: This is a randomized, double-blind, placebo-controlled, adaptive seamless Phase II/III design (ASD). We propose the administration of an investigational drug in patients with high predicted short-term mortality secondary to COVID-19 disease. 80 patients were randomly assigned in a 1:1:1 ratio to three study arms that will receive clazakizumab at a dose of 12.5 mg, 25 mg or placebo. Interim analyses occurred every 7 days since the enrollment of the first 30 patients. Based on week 4 interim analysis the DSMB has recommendation discontinuing the low-dose 12.5 mg of clazakizumab arm. The DSMB has advised continuing enrollment in the placebo and high-dose 25mg of clazakizumab arms in a 1:1 randomization.
Primary purpose: TREATMENT

Brief summary: In this study invetigators propose to administer clazakizumab to patients with life-threatening COVID-19 infection manifest by pulmonary failure and a clinical picture consistent with a cytokine storm syndrome. This is a double-blinded randomized multi-center trial designed as a phase II dose-finding three arm trial with seamless adaptive transition to a phase III efficacy trial. For phase II, patients were randomized 1:1:1 ratio to three study arms and received clazakizumab at a dose of 12.5 mg, 25 mg or placebo.

Based on interim analysis, the low dose arm was dropped and the phase III portion of the study continued to enroll patients randomized 1:1 to high dose clazakizumab or placebo.

Based on interim analysis, the remaining 10 subjects at NYU will be randomly assigned to a 1:1 ratio to two arms that will receive clazakizumab at a dose of 25 mg or placebo. The NYU site will serve as the central data management site for other centers who undertake this protocol. Other sites will enroll patients based on the two arm 1:1 randomization. 60 patients at outside sites are expected to enroll.

Detailed description: The limited understanding of the clinical behavior of patients infected with SARS-CoV-2 (the viral organism responsible for COVID-19 disease) is evolving on a daily basis. Reports from China indicate that a subset of patients with the worst clinical outcomes may manifest cytokine storm syndrome. Hypotheses that excess cytokines may trigger a secondary hemophagocytic lymphhistiocytosis (sHLH) have been proposed. Indeed, cytokine profiles consistent with this picture were observed in Chinese patients with severe pulmonary involvement. Specifically, elevated ferritin and interleukin-6 (IL-6) were associated with fatalities among the infected patients. A role for targeted anti-inflammatory and anti-cytokine therapies in the treatment of pulmonary hyperinflammation has been proposed.

Clazakizumab is a genetically engineered humanized IgG1 monoclonal antibody (mAb) that binds with high affinity to human IL-6. This investigational agent is currently being studied as a treatment for chronic active antibody mediated rejection of renal allografts.

In this study investigators propose to administer clazakizumab to patients with life-threatening pulmonary failure secondary to COVID-19 disease.

Eligibility criteria: Inclusion Criteria:

In order to be eligible to participate in this study, the patients must meet all of the following criteria:

1. At least 18 years of age
2. Confirmed COVID-19 disease (by Cobas SARS-CoV-2 real time RT-PCR using nasopharyngeal swab sample, or equivalent test available to be performed by the NYU Langone clinical laboratory). Effort will be made to have the confirmatory test result \<72 hours prior to enrollment however given overall clinical demand this may not be feasible in all cases.
3. Respiratory failure manifesting as: Acute Respiratory Distress Syndrome (defined by a P/F ratio of \<200), OR SpO2 \< 90% on 4L (actual or expected given higher O2 requirement) OR increasing O2 requirements over 24 hours, PLUS 2 or more of the following predictors for severe disease:

   CRP \> 35 mg/L Ferritin \> 500 ng/mL D-dimer \> 1000 mg/mL Neutrophil-Lymphocyte Ratio \> 4 LDH \> 200 U/L Increase in troponin in patient w/out known cardiac disease
4. Has a consent designee willing to provide informed consent on behalf of the patient (this assumes that a mechanically ventilated patients lacks capacity to consent on his/her own behalf. Should it be deemed that the patient has capacity to consent, consent may be obtained from the patient.)
5. Women of childbearing potential must be willing and able to use at least one highly effective contraceptive method for a period of 5 months following the study drug administration. In the context of this study, an effective method is defined as those which result in low failure rate (i.e. less than 1% per year) when used consistently and correctly such as:

   1. combined (estrogen and progestogen containing) hormonal contraception combined (estrogen and progestogen containing) hormonal contraception (oral, intravaginal, or transdermal)
   2. progestogen-only hormonal contraception associated with inhibition of ovulation (oral, injectable, implantable)
   3. intrauterine device (IUD)
   4. intrauterine hormone-releasing system (IUS)
   5. vasectomized partner
   6. bilateral tubal occlusion
   7. true abstinence. when this is in line with the preferred and usual lifestyle of the subject. Periodic abstinence, such as calendar, ovulation, symptothermal, postovulation methods, and withdrawal are not acceptable methods of contraception.
6. Men must be willing to use a double-barrier contraception from enrollment until at 5 months after the last dose of study drug, if not abstinent.

Exclusion Criteria:

An individual who meets any of the following criteria will be excluded from participation in this study:

1. Evidence of irreversible injury deemed non-survivable even if the pulmonary failure recovers (for example severe anoxic brain injury)
2. Known active inflammatory bowel disease
3. Known active, untreated diverticulitis
4. Known untreated bacteremia
5. Pregnancy. (The protocol will exclude pregnant subjects given the lack of overall data on use of clazakizumab in pregnancy however the study team would consider a protocol revision should more than 3 potential pregnant study subjects be excluded on this basis).
6. Known hypersensitivity to the clazakizumab

Primary outcomes:
measure: Ventilator Free Survival
timeFrame: 28 days
measure: Number of Serious Adverse Events Associated With High and Low Dose of Clazakizumab
timeFrame: 60 days
Secondary outcomes:
measure: Overall Patient Survival
timeFrame: 28 days
measure: Overall Patient Survival
timeFrame: 60 days
measure: Number of Participants With Change in Clinical Status
timeFrame: 28 days
measure: Number of Participants With a Change in Clinical Status
timeFrame: 60 days
measure: Number of Clazakizumab-expected Adverse Events
timeFrame: 60 days
Other outcomes:
Locations:
city: Phoenix
country: United States
facility: Mayo Clinic
state: Arizona
city: Baltimore
country: United States
facility: The Johns Hopkins Hospital
state: Maryland
city: New York
country: United States
facility: New York University School of Medicine
state: New York
Study officials:
affiliation: NYU Langone Health
name: Bonnie Lonze, MD
role: PRINCIPAL_INVESTIGATOR
References:
citation: Lonze BE, Spiegler P, Wesson RN, Alachkar N, Petkova E, Weldon EP, Dieter RA, Li Y, Quinn M, Mattoo A, Soomro I, Cohen SM, Leung S, Deterville CL, Landrum BM, Ali MI, Cohen DJ, Singer AL, Sen A, Chong E, Hochman JS, Troxel AB, Montgomery RA. A Randomized Double-Blinded Placebo Controlled Trial of Clazakizumab for the Treatment of COVID-19 Pneumonia With Hyperinflammation. Crit Care Med. 2022 Sep 1;50(9):1348-1359. doi: 10.1097/CCM.0000000000005591. Epub 2022 May 17.