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A Drug Drug Interaction (DDI) Study of Selpercatinib and Dabigatran in Healthy Participants

Phase 1
Completed
Conditions
Healthy
Interventions
Registration Number
NCT04782076
Lead Sponsor
Loxo Oncology, Inc.
Brief Summary

The main purpose of this study is to determine the effect of selpercatinib on the levels of dabigatran in the blood stream and how long it takes the body to remove dabigatran. This study will also look at how safe and well-tolerated of dabigatran when administered in combination with selpercatinib in healthy participants. This study will last approximately 22 to 25 days.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
36
Inclusion Criteria
  • Overtly healthy males or females, as determined by medical history, physical examination and vital signs.
  • Body mass index (BMI) within the range of 19 to 35 kilograms per meter squared (kg/m²)
  • Male participants are not required to adhere to contraceptive requirements and female participants of childbearing potential must agree to be either remain abstinent or stay in a same sex relationship without sexual relationships with males or must agree to use a highly effective method of contraception and who underwent bilateral salpingectomy. The Female participants not of childbearing potential are not required to use contraception.
Exclusion Criteria
  • Have a positive pregnancy test at screening or Day -1, where applicable
  • Are planning to become pregnant during the study or within 1 month of study completion
  • Are women who are lactating
  • Have known allergies to selpercatinib- or dabigatran-related compounds or any components of the formulation of selpercatinib or dabigatran, or history of significant atopy
  • Have a history of allergic reactions to medications or food products
  • Have a clinically significant abnormality of blood pressure and/or pulse rate as determined by the investigator
  • Have known bleeding disorder including prior personal or familiar history of abnormal bleeding, hereditary or acquired coagulation or platelet disorder
  • Clinically significant abnormalities on ECG as determined by the investigator or prolongation of the QTcB or QTcF >450 msec on more than 1 ECG obtained during screening only
  • Have clinically significant active cardiovascular disease or history of myocardial infarction within 6 months prior to the planned start of selpercatinib
  • Are currently enrolled in any other clinical study involving an investigational product or any other type of medical research judged not to be scientifically or medically compatible with this study
  • Have an average weekly alcohol intake that exceeds 21 units per week (males ≤65 years old) and 14 units per week (females); 1 unit = 12 oz or 360 mL of beer; 5 oz or 150 mL of wine; 1.5 oz or 45 mL of distilled spirit(s)
  • Are smokers of more than 10 cigarettes or e-cigarettes, or 3 cigars or 3 pipes, per day
  • Consume excessive amounts of coffee, tea, cola, or other caffeinated beverages per day

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
Dabigatran + SelpercatinibSelpercatinibParticipants received a single oral dose of 150 milligrams (mg) dabigatran on Day 1 and a single oral dose of 150 mg dabigatran coadministered with a single oral dose of 2 x 80 mg (160 mg) selpercatinib on Day 8. There was a washout period of 7 days between dosing on Days 1 and 8.
Dabigatran + SelpercatinibDabigatranParticipants received a single oral dose of 150 milligrams (mg) dabigatran on Day 1 and a single oral dose of 150 mg dabigatran coadministered with a single oral dose of 2 x 80 mg (160 mg) selpercatinib on Day 8. There was a washout period of 7 days between dosing on Days 1 and 8.
Primary Outcome Measures
NameTimeMethod
Pharmacokinetics (PK): Maximum Concentration (Cmax) of DabigatranDay 1 and Day 8: Predose, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 hours (h) postdose

PK: Cmax of Dabigatran

PK: Area Under the Concentration Versus Time Curve From Time Zero to Infinity (AUC[0-inf]) of DabigatranDay 1 and Day 8: Predose, 0.5, 1, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 h postdose

PK: AUC(0-inf) of Dabigatran

Secondary Outcome Measures
NameTimeMethod
PK: Cmax of SelpercatinibDay 8: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 h postdose

PK: Cmax of Selpercatinib

PK: Time of Maximum Observed Drug Concentration (Tmax) of SelpercatinibDay 8: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 h postdose

PK: Tmax of Selpercatinib

PK: AUC(0-inf) of SelpercatinibDay 8: Predose, 0.5, 1, 1.5, 2, 3, 4, 6, 8, 10, 12, 24, 36, 48, 72 h postdose

PK: AUC(0-inf) of Selpercatinib

Trial Locations

Locations (1)

Covance Clinical Research Inc

🇺🇸

Daytona Beach, Florida, United States

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