Kidney TransplantNCT07769567
Optimization of Therapeutic Drug Monitoring in Pediatric Kidney Transplant
An observational study of Kidney Transplant, run by Children's Hospital Medical Center, Cincinnati.
Trial summary
The goal of this observational, pharmacokinetic study is to evaluate factors that change drug exposure in pediatric kidney transplant recipients so investigators can make better dosing decisions. Read more about this study
- Who is it for?
- Ages 1 year and older
- Conditions the study is for
- Kidney Transplant
- How many people
- 25 participants
- Where
- No sites listed yet
- Study dates
- 1 Nov 2026to 31 Dec 2028
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 1 year and older
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Study population: Cincinnati Children's Hospital
Who may be able to join
- Recipient of a solid organ transplant and at least 1 year of age
- Receiving tacrolimus and/or mycophenolate
- Patient and/or caregiver is willing to receive text notifications and has a mobile device capable of receiving and sending text and multimedia messages.
- Ability to understand and willingness to sign a written informed consent
- Ability to understand, read, and speak English.
Who cannot join
- History of allergy to tape adhesives
About this study
Official title: Optimization of Therapeutic Drug Monitoring for Tacrolimus and Mycophenolate in Pediatric Kidney Transplant Recipients: a PK/PD Study
The goal of this observational, pharmacokinetic study is to evaluate factors that change drug exposure in pediatric kidney transplant recipients so investigators can make better dosing decisions. The main question it aims to answer is:
Can investigators quantify the impact of factors that change with time (like food intake and medication adherence) on tacrolimus and mycophenolate? Our hypothesis is that inconsistent drug and food intake will increase day to day variability in drug exposure, and investigators can use this information to help us make decisions about what is the best dose.
Read more
Participants will participate in the study on 7 days over the course of 1 year. On day 1, participants will be asked questions to see if participants are able to be in this study. Investigators will ask what immunosuppression participants are taking, how tall and how much participants weigh.
On day 2, participants and their parent/guardian will be taught how to use the device to collect the blood samples and decide on which days to collect them.
On days 3-6, participants will collect blood samples 4 separate times over about 1 year. Collection days should try to be scheduled every 3 months (+/- 2 weeks).
On each collection day, participants will collect a sample 7 different times over 9 hours. Each collection will only take approximately 5 minutes. Participants will be asked to collect a blood sample immediately before the morning dose of tacrolimus or mycophenolate, and 20 min, 1hr, 3hr, 4hr, 6hr, 9hr after the dose.
Also on collection days, participants will receive text messages and be asked to complete different assessments about their medications, diet, and how they feel by responding to the texts.
On day 7, participants will have the opportunity to participate in an interview where investigators will ask about participants' experience in the study.
- Conditions
- Kidney Transplant
- Keywords
- tacrolimus, mycophenolate, pharmacokinetics, pediatrics, microsampling
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| Longitudinal Self-Sampling for Immunosuppression Pharmacokinetics | Cohort of pediatric kidney transplant recipients self-collecting blood samples for assessment of intrapatient pharmacokinetic variability over 1 year |
What is being measured
The primary outcome is the main question the study is designed to answer.
Tacrolimus AUC
Tacrolimus AUC (total exposure) will be estimated from the 7 tacrolimus blood concentrations using a population pharmacokinetic model
Measured: From enrollment for 1 year (samples every 3 months)
Mycophenolic acid AUC
Mycophenolic acid AUC (total exposure) will be estimated from the 7 tacrolimus blood concentrations using a population pharmacokinetic model
Measured: From enrollment for 1 year (samples collected every 3 months)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Aug 2026
- Study start1 Nov 2026 (estimated)
- Primary completion31 Dec 2027 (estimated)
- Study completion31 Dec 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Kidney TransplantStudies of the same condition, open and under way.
- More trials run by Children's Hospital Medical Center, CincinnatiThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 25 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Children's Hospital Medical Center, Cincinnati
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Abbie Leino, Children's Hospital Medical Center, Cincinnati
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07769567
- Sponsor's protocol ID
- 2026-0136
- Status last verified
- Oct 2026
- First submitted
- 13 Aug 2026
- Last updated
- 20 Oct 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 20 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Optimization of Therapeutic Drug Monitoring for Tacrolimus and Mycophenolate in Pediatric Kidney Transplant Recipients: a PK/PD Study
- ClinicalTrials.gov ID
- NCT07769567
- Acronym / sponsor ID
- 2026-0136
- Conditions
- Kidney Transplant
- Keywords
- tacrolimus, mycophenolate, pharmacokinetics, pediatrics, microsampling
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 25 participants (estimated)
- Lead sponsor
- Children's Hospital Medical Center, CincinnatiUniversity, hospital or other
- Study start
- 1 Nov 2026 (estimated)
- Primary completion
- 31 Dec 2027 (estimated)
- Study completion
- 31 Dec 2028 (estimated)
- First posted
- 18 Aug 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The goal of this observational, pharmacokinetic study is to evaluate factors that change drug exposure in pediatric kidney transplant recipients so investigators can make better dosing decisions. The main question it aims to answer is:
Can investigators quantify the impact of factors that change with time (like food intake and medication adherence) on tacrolimus and mycophenolate? Our hypothesis is that inconsistent drug and food intake will increase day to day variability in drug exposure, and investigators can use this information to help us make decisions about what is the best dose.
Participants will participate in the study on 7 days over the course of 1 year. On day 1, participants will be asked questions to see if participants are able to be in this study. Investigators will ask what immunosuppression participants are taking, how tall and how much participants weigh.
On day 2, participants and their parent/guardian will be taught how to use the device to collect the blood samples and decide on which days to collect them.
On days 3-6, participants will collect blood samples 4 separate times over about 1 year. Collection days should try to be scheduled every 3 months (+/- 2 weeks).
On each collection day, participants will collect a sample 7 different times over 9 hours. Each collection will only take approximately 5 minutes. Participants will be asked to collect a blood sample immediately before the morning dose of tacrolimus or mycophenolate, and 20 min, 1hr, 3hr, 4hr, 6hr, 9hr after the dose.
Also on collection days, participants will receive text messages and be asked to complete different assessments about their medications, diet, and how they feel by responding to the texts.
On day 7, participants will have the opportunity to participate in an interview where investigators will ask about participants' experience in the study.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Longitudinal Self-Sampling for Immunosuppression Pharmacokinetics | – | –Cohort of pediatric kidney transplant recipients self-collecting blood samples for assessment of intrapatient pharmacokinetic variability over 1 year |
Who may qualify
- Ages
- 1 year and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
- Study population
- Cincinnati Children's Hospital
Key inclusion criteria (5 listed)
- Recipient of a solid organ transplant and at least 1 year of age
- Receiving tacrolimus and/or mycophenolate
- Patient and/or caregiver is willing to receive text notifications and has a mobile device capable of receiving and sending text and multimedia messages.
- Ability to understand and willingness to sign a written informed consent
- Ability to understand, read, and speak English.
Key exclusion criteria (1 listed)
- History of allergy to tape adhesives
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Tacrolimus AUC
Time frame: From enrollment for 1 year (samples every 3 months)
Tacrolimus AUC (total exposure) will be estimated from the 7 tacrolimus blood concentrations using a population pharmacokinetic model
Mycophenolic acid AUC
Time frame: From enrollment for 1 year (samples collected every 3 months)
Mycophenolic acid AUC (total exposure) will be estimated from the 7 tacrolimus blood concentrations using a population pharmacokinetic model
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 20 Oct 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
An observational study of Kidney Transplant, run by Children's Hospital Medical Center, Cincinnati.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 5 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 20 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Tacrolimus AUC (time frame: From enrollment for 1 year (samples every 3 months)). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Oct 2026.