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Use of Sublingual Tacrolimus in Adult Blood and Marrow Transplant Patients

Use of Sublingual Tacrolimus in Adult Blood and Marrow Transplant Patients: a Pilot Study

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04041219
Enrollment
10
Registered
2019-08-01
Start date
2019-06-17
Completion date
2019-10-08
Last updated
2020-08-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Bone Marrow Transplant, Immunosuppression, Stem Cell Transplant

Brief summary

Researchers are trying to learn more about using sublingual (absorption under the tongue) tacrolimus in blood and marrow transplant patients.

Detailed description

Initial doses will be given via sublingual route and a steady state trough level will be collected after 4 consecutive doses. Participants will then switched to oral tacrolimus, the dose adjusted for a goal trough 8-12ng/mL, and another steady state trough will be drawn.

Interventions

DRUGTacrolimus

Recommended starting dose will be in accordance with the established protocol (0.04 mg/kg/dose of ideal body weight), initially administered sublingually for four consecutive doses.

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Individuals will be identified from within the adult allogeneic BMT program at Mayo Clinic in Rochester, Minnesota * Adults prescribed tacrolimus for treatment or prevention of Graft Versus Host Disease (GVHD)

Exclusion criteria

* Vulnerable populations * Patients with contraindications to tacrolimus, inclusive of hypersensitivity, history of posterior reversible encephalopathy syndrome or calcineurin-inhibitor induced thrombotic microangiopathy * Lacking the capacity to consent in English and declining to participate in research

Design outcomes

Primary

MeasureTime frameDescription
Median Tacrolimus Sublingual Trough Level14 daysTrough level is the lowest concentration in the patient's bloodstream and was collected after four consecutive sublingual doses. Measured as ng/mL.

Secondary

MeasureTime frameDescription
Median Sublingual (SL) to Oral (PO) Ratio14 daysTotal daily dose will be divided by the corresponding trough whole blood concentration for each route of administration to determine the dosing ratio of SL:PO. \[(daily doseSL/blood concentrationSL)/(daily dosePO/blood concentrationPO)\] for each individual participant.

Countries

United States

Participant flow

Participants by arm

ArmCount
Allogeneic Blood or Marrow Transplantation
Subjects who had allogeneic blood or marrow transplantation (BMT) at Mayo Clinic in Rochester Minnesota Tacrolimus: Recommended starting dose was in accordance with the established protocol (0.04 mg/kg/dose of ideal body weight), initially administered sublingually for four consecutive doses. Tacrolimus: Recommended starting dose was in accordance with the established protocol (0.04 mg/kg/dose of ideal body weight), oral administration after sublingual four consecutive doses
10
Total10

Baseline characteristics

CharacteristicAllogeneic Blood or Marrow Transplantation
Age, Continuous61 years
Hematologic Diagnosis of Acute myeloid leukemia6 Participants
Hematologic Diagnosis of Myelodysplastic syndrome2 Participants
Hematologic Diagnosis of Other2 Participants
Race and Ethnicity Not Collected— Participants
Region of Enrollment
United States
10 participants
Sex: Female, Male
Female
5 Participants
Sex: Female, Male
Male
5 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 10
other
Total, other adverse events
0 / 10
serious
Total, serious adverse events
0 / 10

Outcome results

Primary

Median Tacrolimus Sublingual Trough Level

Trough level is the lowest concentration in the patient's bloodstream and was collected after four consecutive sublingual doses. Measured as ng/mL.

Time frame: 14 days

ArmMeasureValue (MEDIAN)
Allogeneic Blood or Marrow TransplantationMedian Tacrolimus Sublingual Trough Level11.3 ng/mL
Secondary

Median Sublingual (SL) to Oral (PO) Ratio

Total daily dose will be divided by the corresponding trough whole blood concentration for each route of administration to determine the dosing ratio of SL:PO. \[(daily doseSL/blood concentrationSL)/(daily dosePO/blood concentrationPO)\] for each individual participant.

Time frame: 14 days

ArmMeasureValue (MEDIAN)
Allogeneic Blood or Marrow TransplantationMedian Sublingual (SL) to Oral (PO) Ratio1.02 ratio

Source: ClinicalTrials.gov · Data processed: Feb 16, 2026