Independent directory Public ClinicalTrials.gov records United States
ClinicalTrials.gov record
Withdrawn No phase listed Observational

Pathogenesis of BTK-mediated Hyper-Inflammatory Responses in COVID-19 (RESPOND)

ClinicalTrials.gov ID: NCT04394884

Public ClinicalTrials.gov record NCT04394884. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 15, 2026, 4:06 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Pathogenesis of BTK-mediated Hyper-Inflammatory Responses in COVID-19

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Background: Coronavirus disease 2019 (COVID-19) is an acute respiratory syndrome. It is caused by the SARS-CoV-2 virus. People with severe COVID-19 infection have a hyper-inflammatory response. Bruton tyrosine kinase (BTK) plays a role in the innate immune system. BTK inhibition can be used to target the innate immune system that appears to contribute to mortality. This could be an effective way to help the inflammatory responses in people with COVID-19. Objective: To learn more about the immunologic mechanisms by which BTK inhibition may decrease hyper-inflammatory responses in people with COVID-19. Eligibility: People ages 18 and older in one of the following groups: * They are in the hospital with COVID-19. They will or will not be treated with a BTK inhibitor. * They do not have COVID-19. They are or are not in the hospital. They will be treated with a BTK inhibitor for a reason other than COVID-19. Design: Participants will be screened with a review of their demographic and clinical information. Their medical history will be reviewed. If they have COVID-19, their symptoms will be assessed. Participants will give 3-4 blood samples. These may be taken through a vein. They may also be taken through an existing central venous catheter. Participants may give a stool sample. This will be collected by nursing staff. It will be collected using a stool collection vial. Stool collection is optional. Participants samples will be collected over about 7 days. These will be used for research and genetic testing.

Study identification

NCT ID
NCT04394884
Recruitment status
Withdrawn
Study type
Observational
Phase
Not listed
Enrollment
Not listed

Conditions and interventions

Conditions

Interventions

Not listed

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 17, 2022 (Actual)
Primary completion
Feb 17, 2022 (Actual)
Completion
Feb 17, 2022 (Actual)
Last update posted
Feb 24, 2022

2022

United States locations

U.S. sites
3
U.S. states
1
U.S. cities
2
Facility City State ZIP Site status
Johns Hopkins Hospital Baltimore Maryland 21205 —
Walter Reed National Medical Center Bethesda Maryland 20301 —
National Institutes of Health Clinical Center Bethesda Maryland 20892 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT04394884, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Feb 24, 2022 · Synced Oct 15, 2026

Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.

Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT04394884 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →