Skip to content

A Randomized, Single-Dose and Multiple Dose Dose-Ranging Safety and Pharmacokinetics Study of Tacrolimus Powder for Inhalation in Healthy Adult Subjects

A Randomized, Single-Dose and Multiple Dose Dose-Ranging Safety and Pharmacokinetics Study of Tacrolimus Powder for Inhalation in Healthy Adult Subjects

Status
Completed
Phases
Phase 1
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12620000192987
Enrollment
64
Registered
2020-02-19
Start date
2020-06-29
Completion date
2021-08-10
Last updated
2023-07-18

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

Conditions

None listed

Brief summary

TFF Pharmaceuticals Australia Pty Limited is developing the study drug TFF tacrolimus as a potential new treatment to lower the risk of rejection for lung transplantations. Tacrolimus is an immunosuppressive drug used mainly after an organ transplant to lower the risk of organ rejection. Immunosuppression has been a key factor for the success of organ transplants. Tacrolimus as inhalation therapy (TFF tacrolimus) is being investigated specifically to lower the risk of rejection for lung transplantations. Tacrolimus is available as oral capsules and as intravenous injections (into the vein). The purpose of this study is to determine safe and tolerable inhaled doses that will be investigated further in future human studies.

Interventions

Part A: This is a double-blinded, placebo-controlled, randomized, dose-ranging study evaluating five different dose levels (0.5, 1.0, 2.5, 5, and 10 mg). On Day 1 of each period, subjects will receive a single dose of either TFF tacrolimus inhalation powder or a matching placebo. Participants will receive only one dose level of TFF tacrolimus. Participants will be required to fast overnight prior to dosing and for 2 hours following dosing, and will be domiciled at the clinical research center

Part A: This is a double-blinded, placebo-controlled, randomized, dose-ranging study evaluating five different dose levels (0.5, 1.0, 2.5, 5, and 10 mg). On Day 1 of each period, subjects will receive a single dose of either TFF tacrolimus inhalation powder or a matching placebo. Participants will receive only one dose level of TFF tacrolimus. Participants will be required to fast overnight prior to dosing and for 2 hours following dosing, and will be domiciled at the clinical research center. Treatments will be administered by the clinic staff. For the 2.5 mg dose level, subjects will be given two administrations, one fasted and one with a high fat meal (50%-60% fat), in a fixed sequence fashion separated by one week. Safety and PK will be monitored on both occasions. Part B: This is a double-blinded, placebo-controlled, randomized, multi-dose study evaluating three different dose levels (1.0, 2.5, and 5.0 mg BID). Participants who enrolled in Part A are not eligible to enroll in Part B. Tacrolimus inhalation powder or matching placebo will be administered twice per day for 6.5 days for a total of 13 doses. Participants will receive only one dose level of TFF tacrolimus. Participants will be domiciled at the clinical research center and treatments will be administered by the clinic staff.

Sponsors

TFF Pharmaceuticals Australia Pty Limited
Lead SponsorCommercial sector/Industry

Study design

Allocation
Randomised controlled trial
Intervention model
Other
Primary purpose
Prevention
Masking
Blinded (masking used) (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

Sex/Gender
All
Age
18 Years to 65 Years
Healthy volunteers
Yes

Inclusion criteria

1. Healthy, adult, male or female (women of non-child bearing potential only), 2. Continuous non smoker who has not used nicotine containing products (including e vaping) for at least 3 months prior to the first dosing and throughout the study, based on subject’s self-reporting and urine cotinine levels at screening. 3. Medically healthy with no clinically significant medical history, physical and neurologic examination, laboratory profiles, vital signs or ECGs, as deemed by the PI or designee. 4. A CKD-EPI Creatinine 2009 estimated creatinine clearance of >=80 mL/min 5. A non vasectomized, male subject must agree to use a highly effective method of birth control with female partners of childbearing potential during the study and for 120 days following dosing.

Exclusion criteria

1. History or presence of clinically significant medical or psychiatric condition or disease in the opinion of the PI or designee. 2. History of any illness that, in the opinion of the PI or designee, might confound the results of the study or poses an additional risk to the subject by their participation in the study. 3. History or presence of hypersensitivity or idiosyncratic reaction to tacrolimus, cyclosporine, or any chemically related compound (everolimus, sirolimus). 4. History of lactase deficiency 5. Has had surgery or any medical condition within 6 months prior to first dosing which may affect the absorption, distribution, metabolism, or elimination of the study drug, in the opinion of the PI or designee. 6. Female subjects with a positive pregnancy test or who are lactating. 7. Positive results at screening for human immunodeficiency virus (HIV), hepatitis B surface antigen (HBsAg) or hepatitis C virus (HCV). 8 ECG findings are abnormal. 9. Blood pressure is abnormal. 10. Seated heart rate is lower than 40 bpm or higher than 99 bpm at screening.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026