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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT05640271
Other study ID # IRB22-0277
Secondary ID
Status Recruiting
Phase Phase 2
First received
Last updated
Start date April 10, 2023
Est. completion date January 2026

Study information

Verified date August 2023
Source University of Chicago
Contact Austin Wesevich, MD
Phone 773-834-6732
Email austin.wesevich@uchicagomedicine.org
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The investigators are evaluating the role of a low dose of tocilizumab in treating acute chest syndrome in patients with sickle cell disease. Tocilizumab inhibits interleukin-6 (IL-6) receptors and is used to treat rheumatoid arthritis and severe cytokine release syndrome, which can be seen with chimeric antigen receptor T-cell (CAR-T) therapy, and it is also authorized for treatment of COVID-19. Since IL-6 levels are elevated in the sputum of patients with acute chest syndrome, the investigators are hopeful that this will be an effective strategy. The investigators will be looking at how a low dose of tocilizumab affects oxygen status, clinical outcomes, and laboratory markers in patients admitted to the hospital with acute chest syndrome.


Description:

In this randomized, placebo-controlled, double-blinded phase II study, enrolled patients admitted to the University of Chicago who are diagnosed with acute chest syndrome will receive one dose of tocilizumab 80 mg IV and one normal saline placebo dose. The order of these doses will be randomized at a 1:1 ratio. After collecting oxygenation data as a baseline for 8 hours, patients will then receive tocilizumab versus placebo as their early dose and then the opposite (placebo versus tocilizumab) 48 hours later. Clinical, laboratory, and patient-reported outcome data will be collected during their admission and compared between arms.


Recruitment information / eligibility

Status Recruiting
Enrollment 200
Est. completion date January 2026
Est. primary completion date April 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Adults = 18 years of age - Prior diagnosis of sickle cell disease (Hb SS, Hb SC, Hb Sb+, and Hb Sb0) Exclusion Criteria: - Pregnant patients or breastfeeding mothers. - On active therapy with a Bruton's tyrosine kinase-targeted agent, which include the following: Acalabrutinib Ibrutinib Zanubrutinib - On active therapy with a JAK2-targeted agent, which include the following: Baricitinib Ruxolitinib Tofacitinib Upadacitinib - Any of the following biologic immunosuppressive agent (and any biosimilar versions thereof) administered in the past 6 months: Abatacept Adalimumab Alemtuzumab Atezolizumab Belimumab Blinatumomab Brentuximab Certolizumab Daratumumab Durvalumab Eculizumab Elotuzumab Etanercept Gemtuzumab Golimumab Ibritumomab Infliximab Inotuzumab Ipilimumab Ixekizumab Moxetumomab Nivolumab Obinutuzumab Ocrelizumab Ofatumumab Pembrolizumab Polatuzumab Rituximab Sarilumab Secukinumab Tocilizumab Tositumumab Tremelimumab Urelumab Ustekinumab

Study Design


Intervention

Drug:
Tocilizumab
Tocilizumab 80 mg IV dose (one time per patient)

Locations

Country Name City State
United States University of Chicago Chicago Illinois

Sponsors (1)

Lead Sponsor Collaborator
University of Chicago

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Time-weighted SaO2/FiO2 ratio Oxygenation data will be obtained as part of routine clinical care. All changes in pulse oximetry measurement that are documented in the chart will be recorded in an oxygen saturation case report form with the date and time from Day 0 to Day 4. These peripheral oxygen saturation (SpO2) measurements will serve as surrogates for SaO2. Additionally, all changes in the route of supplemental oxygen delivery, rate of supplemental oxygen delivery, and fraction of inspired oxygen (FiO2) will be recorded in a corresponding case report form with the date and time from Day 0 to Day 4. The time-weighted SaO2/FiO2 ratio, our primary endpoint, will be calculated based on these two case report forms. Total of 4 days (Day 0 to Day 4)
Secondary Red cell exchange transfusion rate As part of routine clinical care by the inpatient team, patients may receive a red cell exchange transfusion. The study team will assess if participants received any exchange transfusions from Day 0 to Day 8, and if so, they will record the date of the first exchange transfusion and the total number of units transfused during that time period. Total of 9 days (Day 0 to Day 8)
Secondary Intensive Care Unit (ICU) transfer rate Patients will be assessed for if they were admitted directly to the intensive care unit (ICU) or if they were transferred from the general medicine floor to the ICU between Day 0 and Day 8. The date of transfer to the ICU will be recorded if applicable. Total of 9 days (Day 0 to Day 8)
Secondary Length of stay Patients will be assessed for their admission and discharge dates. Length of stay will be calculated based on those two dates. Up to 3 months (Admission Date to Discharge Date)
Secondary Readmission rate Patients will be assessed for readmission for 28 days from discharge. Readmission will be assessed at the University of Chicago as well as through any linked hospitals through Care Everywhere within the electronic medical record system. The date of readmission will be recorded if applicable. Total of 29 days (Discharge Date to 28 days after discharge)
Secondary Mortality rate Patients will be assessed for mortality from Day 0 to Day 28. The date of death will be recorded if applicable. Total of 29 days (Day 0 to Day 28)
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