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Taking people in CanadaNo phase

Studies how drugs given to children with several conditions act in the body

Measures how standard drugs act in children and young adults receiving them.

Plain-language title generated from the registry record
Registry title: Pharmacokinetics, Pharmacodynamics, and Safety Profile of Understudied Drugs Administered to Children Per Standard of Care (POPS)

Key facts

Where
Montreal and Toronto, CanadaSee the 2 sites

AI summary: who the study is looking for

From the trial's eligibility criteria. Machine-read from the registry text on this page, so it can be wrong. The registry text below and the trial team decide who can take part.

The trial is looking for children and young adults under 21 who are getting certain medicines from their doctor as usual care, or who recently tested positive for SARS-COV-2. It studies how the medicines act in the body.

Age
Under 21 years (0 to 20 years).
Sex
All sexes can join.
Earlier treatment
Taking one or more of the study drugs at enrollment, or a positive SARS-COV-2 test within 60 days before enrollment.
Biomarker or test result
A positive SARS-COV-2 test within 60 days is accepted for people not taking the study drugs.

Main reasons for not taking part

  • Known pregnancy
  • Dialysis (intermittent) within the previous 24 hours
  • Kidney transplant within the previous 30 days
  • Liver or stem cell transplant within the previous 1 year
  • Ventricular assist device

Read by machine on 12 November 2026.

Could this be for you?

Answer for yourself. This is not a decision: only the study team can say whether you can take part.

  • Are you between 0 and 20 years old?

Source: NCT04278404, who can take part

Where in Canada

  • CHU Sainte-JustineMontreal, CanadaContact: Clothilde GravelTaking people
  • The Hospital for Sick ChildrenToronto, CanadaContact: Chi HornikNo longer taking part

Questions to ask the study team

  1. How often do I need to come in, and for how long each time?
  2. Are travel costs paid?
  3. Can I keep my own doctor?
  4. What happens if I want to stop?

Contact the study team: see the registry record → Contacts and Locations

Print a page for my doctor

Trial details

Who runs it
Duke University
Trial code
NCT04278404
Record updated
21 August 2026
Original description
The study investigators are interested in learning more about how drugs, that are given to children by their health care provider, act in the bodies of children and young adults in hopes to find the most safe and effective dose for children. The primary objective of this study is to evaluate the PK of understudied drugs currently being administered to children per SOC as prescribed by their treating provider.Read full original descriptionShow less

Pharmacokinetics, Pharmacodynamics, and Safety Profile of Understudied Drugs

The study investigators are interested in learning more about how drugs, that are given to children by their health care provider, act in the bodies of children and young adults in hopes to find the most safe and effective dose for children. The primary objective of this study is to evaluate the PK of understudied drugs currently being administered to children per SOC as prescribed by their treating provider.

Inclusion: Participant is < 21 years of age; Parent/ Legal Guardian/ Adult Participant can understand the consent process and is willing to provide informed consent/HIPAA:; (a) Participant is receiving one or more of the study drugs of interest at the time of enrollment or (b) Participant is NOT receiving one or more of the study drugs of interest but is SARS-COV-2 positive within 60 days prior to enrollment.

Exclusion: Participant has a known pregnancy; Below exclusion criteria apply only to:; Participants receiving one or more of the study drugs of interest at the time of enrollment, DOI administration or PK sampling: (Refer to DOI specific appendices for details on enrollment cohort specifications and additional eligibility criteria); Has had intermittent dialysis within previous 24 hours; Has had a kidney transplant within previous 30 days; Has had a liver transplant within previous 1 year; Has had a stem cell transplant within previous 1 year; Has had therapeutic hypothermia within previous 24 hours; Has had plasmapheresis within the previous 24 hours; Has any condition which would make the participant, in the opinion of the investigator, unsuitable for the study; Has a Ventricular Assist Device.

ClinicalTrials.gov NCT04278404