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Completed Phase 1 Interventional Accepts healthy volunteers

Drug-Drug Interaction (DDI) Study for TD-9855

ClinicalTrials.gov ID: NCT03432793

Public ClinicalTrials.gov record NCT03432793. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Sep 1, 2026, 4:13 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 1, Fixed-Sequence, Open-Label Drug-Drug Interaction Study to Assess the Effect of Fluvoxamine (CYP1A2 Inhibitor), Cigarette Smoking (CYP1A2 Inducer) and Itraconazole (CYP3A4 Inhibitor) on the Pharmacokinetics of TD-9855 in Healthy Subjects

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

This study is designed to assess the effect of fluvoxamine, itraconazole and smoking on the PK disposition of multiple doses TD-9855 in healthy male subjects. The study will also assess the relationship between caffeine PK and TD-9855 PK disposition in healthy male smokers and non-smokers.

Study identification

NCT ID
NCT03432793
Recruitment status
Completed
Study type
Interventional
Phase
Phase 1
Lead sponsor
Theravance Biopharma
Industry
Enrollment
41 participants

Conditions and interventions

Eligibility (public fields only)

Age range
19 Years to 55 Years
Sex
Male
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Feb 27, 2018
Primary completion
Apr 20, 2018
Completion
Apr 20, 2018
Last update posted
Jan 13, 2021

2018

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
Celerion Lincoln Nebraska 68502

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT03432793, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jan 13, 2021 · Synced Sep 1, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT03432793 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →