Medical Information Only. Always consult your healthcare provider before enrolling in any clinical trial.

NCT04448145 · ClinicalTrials.gov registry record

Determinants of SARS (Severe Acute Respiratory Syndrome)-COV2 (COVID-19) Persistence After Convalescence

A clinical trial of COVID-19 and SARS-CoV-2, sponsored by Columbia University.

Recruiting
Registry status
800
Enrollment target
1
Study location

NCT04448145: Recruiting study of COVID-19 and SARS-CoV-2, sponsored by Columbia University.

NCT04448145 is a study of COVID-19 and SARS-CoV-2 that is actively recruiting participants, run by Columbia University. The registered enrollment target is 800 participants, below the 38,462-participant average among 298 other COVID-19 trials with a reported enrollment target (98% lower). The trial reports 1 study location across 1 state. According to ClinicalTrials.gov, the official US trial registry.

View on ClinicalTrials.gov ↗

View your shortlist →

The verdict

NCT04448145, a study of COVID-19 and SARS-CoV-2, is actively recruiting participants, sponsored by Columbia University.

RECRUITING
Registry status
800 participants
Enrollment target
1
Study location

Study Summary

The 2019-2020 COVID-19 pandemic is the largest outbreak in recent history. It is not known how long after someone gets sick with COVID-19 and recovers that they can still infect other people. It is also not known how quickly people make antibodies against the virus, which help clear infection from the body. The investigators will enroll 300 people who had COVID-19 based on lab testing or confirmed exposure to participate. An additional 25 participants who have never tested positive for COVID and have not had the vaccine will be enrolled as negative controls. Participants will complete a survey at enrollment. The investigators will also collect blood, nose swab, saliva, stool, semen, and breast milk to test for the virus. The investigators will ask participants to complete a survey and give specimens up to 12 times over 24 months. This information will be used to study how long the virus can live in different parts of the body, antibody development, and post-infectious complications. The investigators hope that this information will allow medical and public health providers to make recommendations to better care for patients in the convalescent phase of COVID-19 infection.

Primary Outcome

Duration of SARS-CoV-2 viral persistence defined as the number of days from symptom onset to the most recent positive SARS-CoV-2 PCR naso/oropharyngeal test, as determined by the established cycle threshold cut-off on a validated real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) assay.

Study Locations (1)

New York

  • Columbia University Medical Center - New York

Trial Details

FieldValue
Enrollment Target 800 participants
Start Date 2020-03-26
Est. Completion 2026-09
Columbia University

958 total trials

What NCT04448145 shows while recruiting

NCT04448145 is an observational study that tracks outcomes without assigning an intervention. The registered 800 participants enrollment target is mid-sized for trials with a published cap, below the 38,462-participant average among 298 other COVID-19 trials with a reported enrollment target (98% lower).

The record links to 3 conditions, with COVID-19 appearing as the primary indexed condition, and to 0 interventions.

NCT04448145 reports a single indexed study location in New York.

Frequently Asked Questions

What is clinical trial NCT04448145 about?

NCT04448145 is a clinical study titled "Determinants of SARS (Severe Acute Respiratory Syndrome)-COV2 (COVID-19) Persistence After Convalescence". The 2019-2020 COVID-19 pandemic is the largest outbreak in recent history. It is not known how long after someone gets sick with COVID-19 and recovers that they can still infect other people. It is also not known how quickly people make antibodies against the virus, which help clear infection from t...

What is the current status of trial NCT04448145?

This trial is currently recruiting. The enrollment target is 800 participants. The study started on 2020-03-26. Estimated completion is 2026-09.

What conditions does trial NCT04448145 study?

This clinical trial studies the following conditions: COVID-19, SARS-CoV-2, Corona Virus Infection.

Who is sponsoring clinical trial NCT04448145?

This trial is sponsored by Columbia University, which has 958 total clinical trials registered on ClinicalTrials.gov.

Where is trial NCT04448145 being conducted?

This trial has 1 study location across New York. Contact the study sites directly through ClinicalTrials.gov for enrollment availability.

Similar trials for COVID-19

Matched on the same primary condition, ranked to surface studies in the same phase first, then by recruiting status, no relevance scoring or editorial curation.

Where NCT04448145's enrollment target sits among peer trials

800 90th of 298 higher than 209 of 298 other COVID-19 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other COVID-19 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

Nationwide trials with similar profiles

Cross-condition peers matched on enrollment target and registry start date, not the same-condition list above.

Similar enrollment target

  • NCT00695214 · 800 participants · Phase 2

    Drug-Induced Sleep Endoscopy for Upper Airway Evaluation in Obstructive Sleep Apnea

  • NCT03048201 · 800 participants · NA

    Physica System Total Knee Replacement Registry Study

  • NCT03792659 · 800 participants

    The EXPLORE MG Registry for Myasthenia Gravis

  • NCT03819296 · 800 participants · Phase 1

    Role of Gut Microbiome and Fecal Transplant on Medication-Induced GI Complications in Patients With Cancer

Similar registry start date

  • NCT05962346 · started 2026-12 · NA

    Fetal Endoscopic Tracheal Occlusion for Congenital Diaphragmatic Hernia

  • NCT07125183 · started 2026-12 · Phase 2

    Study on Efficacy and Tolerability of Weekly Doxorubicin in Elderly Patients With Advanced or Metastatic Leiomyosarcoma

  • NCT07292298 · started 2026-11 · Phase 2

    Phase 2 Single-Arm Rectal Cancer Brachytherapy for Patients With Low-Lying Residual Adenocarcinoma After Total Neoadjuvant Therapy to Improve Organ Preservation Rates

  • NCT04263285 · started 2026-10 · NA

    Treatment of Depression Post-SCI

Source: ClinicalTrials.gov NCT04448145, the US trial registry maintained by the National Library of Medicine. NCT04448145 (mid enrollment · single site footprint · recruiting) retrieved and formatted by PlainTrial, see methodology.