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A Study of N-acetylcysteine in Patients With COVID-19 Infection

Phase II Study of N-acetylcysteine in Severe or Critically Ill Patients With Refractory COVID-19 Infection

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04374461
Enrollment
48
Registered
2020-05-05
Start date
2020-05-01
Completion date
2026-05-31
Last updated
2025-12-15

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

Conditions

Covid-19

Keywords

N-acetylcysteine, 20-168

Brief summary

The study researchers think that a medication called N-acetylcysteine can help fight the COVID-19 virus by boosting a type of cell in your immune system that attacks infections. By helping your immune system fight the virus, the researchers think that the infection will get better, which could allow the patient to be moved out of the critical care unit or go off a ventilator, or prevent them from moving into a critical care unit or going on a ventilator. The US Food and Drug Administration (FDA) has approved N-acetylcysteine to treat the liver side effects resulting from an overdose of the anti-inflammatory medication Tylenol® (acetaminophen). N-acetylcysteine is also used to loosen the thick mucus in the lungs of people with cystic fibrosis or chronic obstructive pulmonary disease (COPD). This study is the first to test N-acetylcysteine in people with severe COVID-19 infections.

Interventions

DRUGN-acetylcysteine

Patients in both arms will receive N-acetylcysteine IV 6 g/day in addition to supportive and/or COVID-19 directed treatments at the discretion of the treating physician. Treatment interruptions for up to 48 hours are permissible if there is a clinical indication to hold the study drug. Patients can restart drug if they have been off drug for less than 48 hours. Patients are also eligible to restart N-acetylcysteine treatment on the same treatment arm without reconsent if they are within the 30 day followup period after their prior course of treatment on this protocol.

A total of 16mL of research whole blood will be collected in CPT tubes at baseline, Cycle 2 Day 1 (or as close as feasible, when still coordinating sample collection across patients in a critical-care unit), and at end of study.

Sponsors

Memorial Sloan Kettering Cancer Center
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

This is a single-institution study that will be open at MSKCC's Manhattan campus. Patients will be enrolled into 2 separate arms. The mechanically ventilated &/or managed in a critical-care arm is closed to accrual as of September 2020.

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Documented COVID-19 infection (either performed on site or documented external report) * Age ≥ 18 Arm A: * Admission to an intensive care unit at MSK (M-11) and/or receiving mechanical ventilation * Absolute lymphocyte count ≤ 1.0/mm3 * As the ALC of patients with lymphoid malignancies is unreliable, they may be enrolled at the discretion of the treating physician after review of their blood work. Arm B: * Arm B:Requiring 2L or more of supplemental oxygen by nasal cannula or higher to maintain SpO2 of 95%

Exclusion criteria

Arm B: * requiring mechanical ventilation or admission to an intensive care unit at MSK (M11)

Design outcomes

Primary

MeasureTime frame
Arm A: number of patients who are successfully extubated and/or transferred out of critical care due to clinical improvement1 year
Arm B: number of patients who are discharged from the hospital due to clinical improvement1 year

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 22, 2026