Itraconazole and Cyclosporine for Drug Interaction Study

No longer recruiting at 1 trial location
PC
Overseen ByPfizer CT.gov Call Center
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial aims to understand how the medicine danuglipron interacts in the body when taken with cyclosporine (an immunosuppressant) and itraconazole (an antifungal medication). The research will help determine safe and effective ways to use danuglipron alongside these medications in the future. Participants will take these drugs in different combinations, and researchers will measure their effects on danuglipron levels. Healthy adults without significant medical history and not on other medications might be a good fit for this study. As a Phase 1 trial, this research focuses on understanding how danuglipron works in people, offering participants the opportunity to be among the first to receive this treatment.

Will I have to stop taking my current medications?

The trial requires participants to stop using prescription or nonprescription drugs and dietary and herbal supplements within 14 days or 5 half-lives before the first dose of the study medicine. This means you may need to stop taking your current medications, but it's best to discuss this with the study team for specific guidance.

Is there any evidence suggesting that this trial's treatments are likely to be safe?

Research has shown that both cyclosporine and itraconazole have been studied for their safety in humans. Cyclosporine, often used to prevent organ rejection, is generally safe. Most people tolerate it well, though some might experience higher blood pressure or kidney problems, which doctors usually monitor.

Itraconazole treats fungal infections and has also been tested in humans. Studies have found that itraconazole is usually safe when taken as directed. However, it can interact with other medications, highlighting the importance of this study. Some people might experience side effects like nausea or dizziness.

This trial is in an early research phase, focusing on the safety and metabolism of these drugs. While these drugs are approved for other uses, their combination with danuglipron is still under study to ensure safety.12345

Why are researchers excited about this trial's treatments?

Researchers are excited about these treatments because they explore how itraconazole and cyclosporine interact with danuglipron, potentially enhancing its effects. Itraconazole and cyclosporine are known for their ability to affect drug metabolism and absorption, which could lead to more effective use of danuglipron. Unlike standard treatments that might not leverage these interactions, this approach could offer a more precise and potent therapeutic option. This trial aims to uncover how these combinations might optimize treatment outcomes, offering new insights into personalized medicine.

What evidence suggests that this trial's treatments could be effective?

This trial will study the interactions of danuglipron with itraconazole and cyclosporine. Studies have shown that itraconazole can significantly increase the levels of certain medicines in the blood. For example, one study found it doubled the concentration of another drug. This suggests itraconazole might enhance the effectiveness of some medications by increasing their levels in the body. In this trial, participants in one arm will receive itraconazole along with danuglipron.

Similarly, cyclosporine interacts with other drugs, affecting their efficacy. Participants in another arm of this trial will receive cyclosporine with danuglipron. Danuglipron, the main focus here, has shown promising results in aiding weight loss compared to a placebo. These interactions with itraconazole and cyclosporine can help researchers learn how to use danuglipron more effectively with other treatments.678910

Who Is on the Research Team?

PC

Pfizer CT.gov Call Center

Principal Investigator

Pfizer

Are You a Good Fit for This Trial?

This trial is for healthy adults over 18 years old with a BMI of 16-32 kg/m2 and weight above 50 kg. Participants must be in good health as confirmed by medical history, physical exams, lab tests, blood pressure, pulse rate, and ECG readings.

Inclusion Criteria

I am 18 or older and in good health as confirmed by a medical exam.
My BMI is between 16 and 32, and I weigh more than 110 pounds.

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

4 weeks

Treatment

Participants receive danuglipron, cyclosporine, and itraconazole in a fixed sequence to evaluate pharmacokinetics

13 days
13 days of staying in the study clinic

Follow-up

Participants are monitored for safety and effectiveness after treatment

4-5 weeks
Follow-up contact

What Are the Treatments Tested in This Trial?

Interventions

  • Cyclosporine
  • Itraconazole
Trial Overview The study is testing how the body processes danuglipron when taken with cyclosporine (a single dose) and itraconazole (multiple doses). This will help understand future use of danuglipron alongside these medications.
How Is the Trial Designed?
3Treatment groups
Experimental Treatment
Active Control
Group I: Period 3: Itraconazole + DanuglipronExperimental Treatment2 Interventions
Group II: Period 2: Cyclosporine + DanuglipronExperimental Treatment2 Interventions
Group III: Period 1: DanuglipronActive Control1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

Pfizer

Lead Sponsor

Trials
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Albert Bourla

Pfizer

Chief Executive Officer since 2019

PhD in Biotechnology of Reproduction, Aristotle University of Thessaloniki

Patrizia Cavazzoni profile image

Patrizia Cavazzoni

Pfizer

Chief Medical Officer

MD from McGill University

Published Research Related to This Trial

A retrospective review of patients treated with itraconazole revealed that low serum levels of the drug were linked to treatment failures in serious fungal infections, such as disseminated histoplasmosis and invasive aspergillosis.
Factors like concurrent use of rifampin, medications that reduce stomach acid, and specific administration methods (like nasogastric tubes) contributed to these low levels, suggesting that monitoring serum itraconazole levels is crucial for patients at risk of treatment failure.
Itraconazole: Precautions regarding drug interactions and bioavailability.Puttick, MP., Phillips, P.[2021]

Citations

Pfizer's Phase 1 Study on Drug Interactions: Key Insights ...The study aimed to understand how the drugs itraconazole and cyclosporine affect the levels of danuglipron in the blood, potentially guiding ...
2.pubmed.ncbi.nlm.nih.govpubmed.ncbi.nlm.nih.gov/40539310/
Efficacy and safety of danuglipron (PF-06882961) in adults ...Danuglipron resulted in statistically significant and clinically meaningful reductions in body weight versus placebo over 26 or 32 weeks.
Clinical Study ResultsThe main purpose of this study was to see how medicines called itraconazole and cyclosporine may affect the amount of lotiglipron in the blood ...
Pfizer Provides Update on GLP-1-RA Clinical Development ...The decision to terminate the clinical development of lotiglipron is based on pharmacokinetic data from Phase 1 drug-drug-interaction studies ( ...
5.pubmed.ncbi.nlm.nih.govpubmed.ncbi.nlm.nih.gov/40066762/
Drug-drug interaction study with itraconazole ...Results: Coadministration with itraconazole increased venglustat area under the concentration-time curve by 2.03-fold (90% confidence interval [ ...
Trial | NCT06541678The purpose of this study is to see how single dose of cyclosporine and multiple doses of itraconazole affect the level of the study medicine danuglipron in ...
Itraconazole Completed Phase 1 Trials for Healthy Lifestyle ...A Study to Learn if the Study Medicines Called Itraconazole and Cyclosporine Change How the Body Processes the Other Study Medicine Called Danuglipron in ...
A Study to Learn if the Study Medicines Called Itraconazole ...The purpose of this study is to see how single dose of cyclosporine and multiple doses of itraconazole affect the level of the study medicine danuglipron in ...
Pfizer's Phase 1 Study on Drug Interactions: Key Insights ...The study aimed to understand how the drugs itraconazole and cyclosporine affect the levels of danuglipron in the blood, potentially guiding ...
A Study to Learn if the Study Medicines Called Itraconazole and ...A phase of research to describe clinical trials that focus on the safety of a drug. ... These trials gather additional information about a drug's safety, efficacy ...
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