CClinicalTrials.gg
Active, not recruitingNCT03226158Updated Jul 20, 2026

Next Generation Pathogen Sequencing for Prediction of Adverse Events

An observational study in Bloodstream Infection, sponsored by St. Jude Children's Research Hospital. Active, not recruiting at 1 site in United States. Open to participants aged Up to 24 Years. Per ClinicalTrials.gov, last updated 2026-07-20.

Sponsored by St. Jude Children's Research Hospital · Observational

Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
160
Ages
Up to 24 Years
Sex
All
01

Study summary

The majority of children and adolescents diagnosed with cancer will experience one or more episodes of fever or infection during their course of therapy. The most common microbiologically documented infection is bloodstream infection (BSI), which can be associated with severe sepsis or death. Current methods of diagnosis require a significant load of live bacteria in the blood making early detection difficult. Delayed diagnosis and delayed optimal therapy of BSIs are associated with increased morbidity and mortality.

This study seeks to identify whether next generation sequencing (NGS) of pathogens can identify patients with impending bloodstream infection. This would enable preemptive targeted therapy to replace antibacterial prophylaxis which often leads ot high-density broad-spectrum antibiotic exposure and contributes to subsequent development of antibiotic resistance.

PRIMARY OBJECTIVE:

  • To estimate the sensitivity and specificity of next generation pathogen sequencing for prediction of bloodstream infection in children with cancer at high risk of infection.
Read the detailed description

Plasma samples collected but not required for clinical care (discarded samples) will be collected and stored. Results of NGS will be compared between patients who develop BSI immediately (within 72 hours) after sample collection, those who develop other infectious syndromes, and those who remain well. Clinical data describing baseline information about the patient and malignancy, antibiotic and chemotherapy exposure, microbiology testing, hematology results, and infection-related events will be collected prospectively from the electronic medical record.

An initial exploratory phase will examine approximately 50 participants to determine whether the effectiveness of predicting infections. The study may then enroll up to 200 participants to collection additional data for analysis.

02

Conditions studied

  • Bloodstream Infection

Keywords

  • Next generation pathogen sequencing (NGPS)
  • Pediatric
  • Cancer
  • Bloodstream infection (BSI)
03

In context

Sepsis

1,899 studies on the registry are indexed under Sepsis; 462 are open to participants now.

This study's enrollment of 160 is close to the median of 160 across 931 observational studies indexed under Sepsis.

Browse Sepsis studies →

Lead sponsor

St. Jude Children's Research Hospital is the lead sponsor of 434 studies on the registry; 99 are open to participants now.

Of its 60 completed or terminated interventional studies of FDA-regulated products, 35 (58%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 24 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Participants who are being treated at St. Jude Children's Research Hospital and who have a high risk of infection.

Inclusion criteria

  • Under 25 years of age at time of study enrollment
  • Undergoing care for cancer at St. Jude
  • In a category of patients who are considered by the investigator to be at high risk of infection
  • Expected to receive care at St. Jude for at least 7 days

Exclusion criteria

Exclusion Criteria:

  • Any condition that would, in the opinion of the investigator, place the subject at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol.
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
160 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna
06

What researchers measure

Primary outcomes

  1. Proportion of NGS-positive results

    To estimate the sensitivity of next generation pathogen sequencing for prediction of BSI, the proportion of NGS-positive results in all positive BSI cultures will be given.

    Time frame: Once (within 72 hours of enrollment)

  2. Proportion of NGS-negative results

    To estimate the specificity of next generation pathogen sequencing for prediction of BSI, the proportion of NGS-negative results in all negative BSI cultures will be given.

    Time frame: Once (within 72 hours of enrollment)

07

Study locations

1 site
  • St. Jude Children's Research Hospital
    Memphis, Tennessee 38105, United States
08

References and documents

Publications

  • Wolf J, Goggin KP, Inaba Y, Allison KJ, Ahmed AA, Maron G, Ferrolino J, Lazure L, Kohler C, Brenner A, Sun Y, Tang L, Gonzalez-Pena V, Rubnitz JE, Gawad C, Margolis EB, Thomas P. Predicting bloodstream infection by plasma cell-free metagenomic sequencing: a prospective cohort study. Lancet Microbe. 2026 Apr;7(4):101312. doi: 10.1016/j.lanmic.2025.101312. Epub 2026 Mar 2. PubMed 41780551 ↗
  • Goggin KP, Gonzalez-Pena V, Inaba Y, Allison KJ, Hong DK, Ahmed AA, Hollemon D, Natarajan S, Mahmud O, Kuenzinger W, Youssef S, Brenner A, Maron G, Choi J, Rubnitz JE, Sun Y, Tang L, Wolf J, Gawad C. Evaluation of Plasma Microbial Cell-Free DNA Sequencing to Predict Bloodstream Infection in Pediatric Patients With Relapsed or Refractory Cancer. JAMA Oncol. 2020 Apr 1;6(4):552-556. doi: 10.1001/jamaoncol.2019.4120. PubMed 31855231 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 20, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03226158
Lead sponsor
St. Jude Children's Research Hospital
Collaborators
Karius, Inc.
Responsible party
Sponsor
First posted
Jul 21, 2017
Start date
Aug 9, 2017
Primary completion
Mar 1, 2022
Completion
Jul 1, 2027 (estimated)
Last update
Jul 20, 2026

Study contacts

Joshua Wolf, MBBS, BA
principal investigator · St. Jude Children's Research Hospital

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Jul 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion