Treatment Trials

21 Clinical Trials for Various Conditions

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COMPLETED
Pharmacokinetics of Tacrolimus in Kidney Transplant Recipients: Once Daily Versus Twice Daily Dosing
Description

Tacrolimus is a medication given to transplant patients to help prevent rejection. The purpose of this study is to see if tacrolimus can be taken once a day instead of twice a day in kidney transplant patients. Transplant patients are required to take several medications to prevent rejection and to treat complications after their transplantation. Because of the complicated dosing schedule, it can be difficult for patients to follow their medication schedule. Taking fewer medications less frequently may help transplant patients to better manage their drug therapy. Tacrolimus is better absorbed in the body if it is taken in the morning than if it is taken in the evening. This suggests that tacrolimus can be taken once every morning instead of twice daily in order to produce appropriate drug exposure to prevent organ rejection without increased side effects.

COMPLETED
Drug Interaction Study of Isavuconazole and Tacrolimus
Description

The purpose of this study is to assess the effect of multiple doses of isavuconazole on the pharmacokinetics (PK) of tacrolimus after single dose administration.

COMPLETED
Efficacy, Safety, Tolerability, Pharmacokinetics of Sotrastaurin-tacrolimus vs. Mycophenolic Acid-tacrolimus in de Novo Liver Transplant Patients
Description

This study will assess the safety and efficacy of different doses of sotrastaurin when combined with tacrolimus for the prevention of acute rejection after de novo liver transplantation.

COMPLETED
A Study to Examine the Effects of Telaprevir on the Pharmacokinetics of Cyclosporine and Tacrolimus in Healthy Adults
Description

The purpose of this study is to evaluate the effect that telaprevir has on the pharmacokinetics of cyclosporine and tacrolimus. Pharmacokinetics means how the drug is absorbed into the bloodstream, distributed in the body and eliminated from the body.

Conditions
COMPLETED
A Study to Evaluate the Drug Interaction of ASP015K and Tacrolimus
Description

The objective of the study is to characterize the effect of multiple doses of ASP015K on the pharmacokinetics of a single oral dose or a single intravenous (IV) dose of tacrolimus.

COMPLETED
Safety and Pharmacokinetics of Sustained-release Depot Tacrolimus: A First-in-human Study
Description

This first-in-human study is designed to assess the safety and pharmacokinetic (PK) profile of sustained-release (SR) depot tacrolimus, which will be administered as a single dose of 0.1 mg/kg by subcutaneous (SC) injection in healthy subjects.

COMPLETED
Pharmacokinetics of Generic to Brand Tacrolimus in Stable Renal Transplant Patients
Description

The study is designed to compare the pharmacokinetics of generic tacrolimus (Sandoz) to branded tacrolimus (Prograf) in stable renal transplant patients.

COMPLETED
Efficacy, Safety, Tolerability, and Pharmacokinetics of Sotrastaurin Combined With Tacrolimus vs. a Mycophenolic Acid-tacrolimus Regimen in Renal Transplant Patients
Description

This study will assess the safety and efficacy of different doses of sotrastaurin when combined with tacrolimus for the prevention of acute rejection after de novo renal transplantation.

COMPLETED
Pharmacokinetics of Sublingual Versus Oral Tacrolimus in Patients Awaiting Kidney Transplantation
Description

Tacrolimus (Prograf) belongs to a class of medications known as the calcineurin inhibitors. It is a maintenance drug that is used to prevent rejection in kidney, liver, and heart transplant recipients. Calcineurin inhibitors display high pharmacokinetic (the body's effects on a drug) variability and necessitate use of blood tests to ensure that adequate drug levels are present to maintain effectiveness and safety. Early after transplant or at times when tacrolimus cannot be taken by mouth, alternative routes of administration are sought. Although an intravenous (through the vein) product is available, it can be toxic to the kidneys and has been associated with allergic reactions. Drug delivery via the oral mucosa is an alternative method of systemic drug administration which offers an alternative when oral administration is impractical (gastrointestinal dysmotility, reduced drug absorption, intestinal failure, difficulty in swallowing, or in those with nausea or vomiting). Administration of tacrolimus by the sublingual route may allow for direct entry into the systemic circulation and bypasses problems associated with drug absorption and breakdown that take place in the small intestine.

COMPLETED
A Study to Assess the Pharmacokinetics of a Modified-release Tacrolimus Based Immunosuppression Regimen in Stable Kidney Transplant Patients
Description

A study to assess the pharmacokinetics, safety and effectiveness of tacrolimus in stable kidney transplant patients converted from a Prograf® based immunosuppression regimen to a modified release tacrolimus based immunosuppression regimen.

COMPLETED
A Study to Assess the Pharmacokinetics of a Modified-release Tacrolimus Based Immunosuppression Regimen in Stable Liver Transplant Patients
Description

A study to assess the pharmacokinetics, safety and effectiveness of tacrolimus in stable liver transplant patients converted from a tacrolimus (Prograf®) based immunosuppression regimen to a modified release tacrolimus based immunosuppression regimen.

COMPLETED
Tacrolimus in Allogeneic Hematopoietic Stem Cell Transplant (HCT)
Description

The purpose of this research study is to evaluate tacrolimus plasma concentrations in patients who will undergo an allogeneic hematopoietic stem cell transplant (HCT). The study aims to identify associations between plasma concentrations, baseline demographic characteristics, clinical lab parameters, and genetic factors. These associations will help clinicians determine the best starting dose for tacrolimus in order to minimize risks of aGVHD and tacrolimus-induced toxicities.

Conditions
COMPLETED
Drug Interaction Study of Apixaban With Cyclosporine and Tacrolimus
Description

This study aims to evaluate the pharmacokinetics (PK) of apixaban when co-administered with cyclosporine and tacrolimus in healthy volunteers. The study participants will receive apixaban alone, cyclosporine followed by apixaban and tacrolimus followed by apixaban.

COMPLETED
Pharmacokinetic Interaction Study to Assess the Effect of ASP015K on Tacrolimus in Healthy Volunteers
Description

This study characterizes the pharmacokinetic effects of ASP015K on Tacrolimus in healthy volunteers.

COMPLETED
Pharmacokinetics of LCP-Tacro™ Once Daily and Prograf® Twice A Day in Adult De Novo Liver Transplant Patients
Description

The purpose of this study is to demonstrate the pharmacokinetics (PK, measuring the amount of medication in blood samples) and safety of a new medicine, LCP-Tacro™ tablets, and Prograf® capsules, a drug commonly taken by transplant recipients to prevent the body from rejecting a transplanted kidney and liver. LCP-Tacro is a tablet containing the same active ingredient (tacrolimus) that is in Prograf capsules, but the tablet has been designed to release tacrolimus over an extended period so that it only has to be taken once daily. LCP-Tacro is an investigational drug. This study will evaluate the levels of tacrolimus in the blood in the first two weeks after a liver transplant in patients randomly assigned (by chance, like flipping a coin) to take either LCP-Tacro™ tablets (tacrolimus) once daily or Prograf® capsules twice daily. In addition, patients will remain on study drug for 360 days in order to evaluate the relative safety of LCP-Tacro™ tablets compared to Prograf over a longer period of time.

Conditions
COMPLETED
Pharmacokinetics of LCP-Tacro(TM) Once Daily And Prograf® Twice A Day in Adult De Novo Kidney Transplant Patients
Description

The purpose of this study is to demonstrate the pharmacokinetics (PK, measuring the amount of medication in blood samples) and safety of a new medicine, LCP-Tacro™ tablets, and Prograf® capsules, a drug commonly taken by transplant recipients to prevent the body from rejecting a transplanted kidney. LCP-Tacro is a tablet containing the same active ingredient (tacrolimus) that is in Prograf capsules, but the tablet has been designed to release tacrolimus over an extended period so that it only has to be taken once daily. LCP-Tacro is an investigational drug. This study will evaluate the levels of tacrolimus in the blood in the first two weeks after a kidney transplant in patients randomly assigned (by chance, like flipping a coin) to take either LCP-Tacro™ tablets (tacrolimus) once daily or Prograf® capsules twice daily. In addition, patients will remain on study drug for 360 days in order to evaluate the relative safety of LCP-Tacro™ tablets compared to Prograf over a longer period of time.

COMPLETED
Pharmacokinetics of LCP-Tacro in Stable Liver Transplant Patients
Description

A three sequence, open-label, multi-center, prospective, study in stable liver transplant patients to assess and compare the pharmacokinetics (Cmax, C24, and AUC), and safety of LCP-Tacro (tacrolimus) tablets versus Prograf (tacrolimus) capsules.

Conditions
COMPLETED
Pharmacokinetics of LCP-Tacro in Stable Kidney Transplant Patients
Description

A three sequence, open-label, multi-center, prospective, study in stable kidney transplant patients to assess and compare the pharmacokinetics (Cmax, C24, and AUC), and safety of LCP-Tacro (tacrolimus) tablets versus Prograf (tacrolimus) capsules.

Conditions
COMPLETED
A Study of a Modified-Release Tacrolimus Based Immunosuppression Regimen in Stable Pediatric Liver Transplant Patients
Description

A study to assess the pharmacokinetics, safety and effectiveness of tacrolimus in stable pediatric liver transplant patients converted from a Prograf® based immunosuppression regimen to a modified release tacrolimus based immunosuppression regimen.

COMPLETED
Drug-Drug Interaction (DDI) Study of ALXN2050 in Healthy Adult Participants
Description

This study will evaluate the potential drug interactions between ALXN2050 and cyclosporine (Part 1), between ALXN2050 and tacrolimus (Part 2), and between ALXN2050 and mycophenolate mofetil (MMF) (Part 3).

Conditions
COMPLETED
PK of MMF in Cadaveric vs Living Donor Liver Transplant Recipients
Description

The purpose of this study is to measure the amount of MMF and tacrolimus concentration in the blood at a given time. Currently MMF is ordered as a set dose and tacrolimus is given based on body weight. While the deceased donor transplant receives the complete liver, in the live donor just over half of the liver is given (about 60%). The way these different types of transplants break down drugs could be different. Measuring the drug levels allows us to know what happens to the medication in between the morning and the evening dose.