A Pharmacokinetics Study for Pediatric Participants With Pulmonary Arterial Hypertension

September 27, 2019 updated by: Eli Lilly and Company

A Multiple Ascending Dose Study of Tadalafil to Assess the Pharmacokinetics and Safety in a Pediatric Population With Pulmonary Arterial Hypertension

The purpose of this study is to see how much study drug is in the blood of children with pulmonary arterial hypertension (PAH) after dosing to establish the correct dose for further clinical research.

Study Overview

Status

Completed

Detailed Description

During Period I, tadalafil will be administered orally, once daily, at a low dose for approximately 5 weeks followed by a high dose for approximately 5 weeks. Dose levels are calculated based on body weight cohorts. Heavy weight cohort >=40 kg, middle weight cohort >=25 kg to <40 kg. Light weight cohort<25 kg. Participants who complete Period 1 may continue taking tadalafil in Period 2 for at least 2 years. Starting dose will not exceed the maximum weight range dose established in Period 1 and after the first 3 months of Period 2, the dose may be adjusted based on available safety and efficacy information.

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Phase 2
  • Phase 1

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Toronto, Canada, M5G 1X8
        • For additional information regarding investigative sites for this trial, contact 1-888-545-5972 Mon - Fri, 9 AM to 4 PM or 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri, 9 AM to 5 PM Eastern Time or speak with your personal physician.
    • Quebec
      • Montreal, Quebec, Canada, H3T 1C5
        • For additional information regarding investigative sites for this trial, contact 1-888-545-5972 Mon - Fri, 9 AM to 4 PM or 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri, 9 AM to 5 PM Eastern Time or speak with your personal physician.
      • Marseille, France, 13385
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
      • Paris, France, 75743
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
      • Toulouse, France, 31026
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
      • Gdansk, Poland, 80-952
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
      • Warszawa, Poland, 00-576
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
      • Warszawa, Poland, 04-730
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
      • Barcelona, Spain, 08035
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
      • Madrid, Spain, 28041
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
    • London
      • Bloomsbury, London, United Kingdom, WC1N 3JH
        • For additional information regarding investigative sites for this trial, contact 1-877-CTLILLY (1-877-285-4559, 1-317-615-4559) Mon - Fri from 9 AM to 5 PM Eastern Time (UTC/GMT - 5 hours, EST), or speak with your personal physician.
    • Colorado
      • Aurora, Colorado, United States, 80045
        • Children's Hospital of Colorado
    • Georgia
      • Atlanta, Georgia, United States, 30322
        • Children's Heathcare of Atlanta, Inc. at Egleston
    • Indiana
      • Indianapolis, Indiana, United States, 46202-5225
        • Riley Hospital for Children
    • Ohio
      • Columbus, Ohio, United States, 43205-2664
        • Nationwide Children's Hospital
    • Pennsylvania
      • Philadelphia, Pennsylvania, United States, 19104
        • Children's Hospital of Philadelphia

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

6 months to 17 years (Child)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Currently have a diagnosis of PAH that is either:

    • idiopathic (including hereditary), related to collagen vascular disease, related to anorexigen use, associated with surgical repair, of at least 6 month duration, of a congenital systemic to pulmonary shunt (for example, atrial septal defect, ventricular septal defect, patent ductus arteriosus).
  • Have a history of the diagnosis of PAH established by a resting mean pulmonary artery pressure ≥25 mm Hg, pulmonary artery wedge pressure ≤15 mm Hg, and a pulmonary vascular resistance (PVR) ≥3 Wood units via right heart catheterization. In the event that a pulmonary artery wedge pressure is unable to be obtained during right heart catheterization, participants with a left ventricular end diastolic pressure <15 mm Hg, with normal left heart function, and absence of mitral stenosis on echocardiography can be eligible for enrollment
  • Have a World Health Organization (WHO) functional class value of I, II or III at the time of enrollment

Exclusion Criteria:

  • Have pulmonary hypertension related to conditions other than specified above, including but not limited to chronic thromboembolic disease, portal pulmonary hypertension, left-sided heart disease or lung disease and hypoxia
  • History of left-sided heart disease, including any of the following:

    • clinically significant (pulmonary artery occlusion pressure [PAOP] 15 to 18 mm Hg) aortic or mitral valve disease (that is, aortic stenosis, aortic insufficiency, mitral stenosis, moderate or greater mitral regurgitation)
    • pericardial constriction
    • restrictive or congestive cardiomyopathy
    • left ventricular ejection fraction <40% by multigated radionucleotide angiogram (MUGA), angiography, or echocardiography
    • left ventricular shortening fraction <22% by echocardiography
    • life-threatening cardiac arrhythmias
    • symptomatic coronary artery disease within 5 years of study entry as determined by the physician
  • History of atrial septostomy or Potts Shunt within 3 months before administration of study drug
  • Unrepaired congenital heart disease

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Tadalafil

Light Weight <25 kg Period 1: 2 milligram (mg) or 4 mg tadalafil administered once daily (QD) in oral suspension formulation for 5 weeks then 8 mg,10 mg,15 mg or 20 mg tadalafil was administered QD in oral suspension formulation for 5 weeks.

Middle Weight: 25 kg to <40 kg Period 1: 5 mg tadalafil tablet administered QD for 5 weeks then 10 mg, 15 mg or 20 mg tablet tadalafil administered QD for 5 weeks.

Heavy: ≥40 kg Period 1: 10 mg tadalafil tablet administered QD for 5 weeks then 20 mg or 40 mg tablet tadalafil administered QD for 5 weeks.

Tadalafil Tablets administered orally. Tadalafil Oral suspension: An aqueous, ready-to-use suspension for oral administration.
Other Names:
  • LY450190

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Population Pharmacokinetics: Area Under the Concentration Curve Versus Time at a Dosing Interval at Steady State (AUCtau) for Tadalafil
Time Frame: Period 1: Pre Dose and 2, 4, 8, 12, and 24 Hours Post Dose on Days 1, 14 and 49; with single dose measures on Day 1 and steady-state measurements on Days 14 and 49

Population Pharmacokinetics: Area Under the Concentration Curve Versus Time at a Dosing Interval at Steady State (AUCtau) for Tadalafil.

The measure of dispersion reported is 90% Prediction Intervals and not Confidence Intervals.

Period 1: Pre Dose and 2, 4, 8, 12, and 24 Hours Post Dose on Days 1, 14 and 49; with single dose measures on Day 1 and steady-state measurements on Days 14 and 49
Population Pharmacokinetics: Average Concentration (Cmean,ss) of for Tadalafil at Steady-State.
Time Frame: Period 1: Pre Dose and 2, 4, 8, 12, and 24 Hours Post Dose on Days 1, 14 and 49; with single dose measures on Day 1 and steady-state measurements on Days 14 and 49

Population Pharmacokinetics: Average Concentration (Cmean,ss) of for tadalafil at steady-state.

The measure of dispersion reported is 90% Prediction Intervals and not Confidence Intervals.

Period 1: Pre Dose and 2, 4, 8, 12, and 24 Hours Post Dose on Days 1, 14 and 49; with single dose measures on Day 1 and steady-state measurements on Days 14 and 49

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Clinical Worsening
Time Frame: Baseline Up to 27 Months
Clinical worsening was defined as any of the following: death, lung or heart transplantation, atrial septostomy or Potts' shunt, hospitalization for Pulmonary Arterial Hypertension (PAH) progression, new onset syncope, initiation of new PAH therapy (including increase in the dose of existing PAH specific concomitant therapy, such as endothelin receptor agonist or beraprost medication), or increase of 1 or more in World Health Organization(WHO) Functional Class (except for participants already in Class IV; only for participants unable to perform the 6 minute walk (6MW) test; worsening of WHO functional class by 1 or more for participants who can perform a 6 minute walk (6MW) test and who have a decrease of ≥ 20% in the 6 minute walk distance (for those participants who are ≥6 years of age).
Baseline Up to 27 Months
Number of Participants With Palatability of the Tadalafil Suspension
Time Frame: Day 35 (high dose)

The Taste Assessment Questionnaire (TAQ) questions were:

TAQRES1: Please rate the bitterness level. TAQRES2: Please rate the sweetness level. TAQRES3: Please rate the aftertaste. TAQRES4: Please rate the overall acceptability of the taste for daily use.

Day 35 (high dose)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

July 17, 2012

Primary Completion (Actual)

April 21, 2017

Study Completion (Actual)

April 3, 2019

Study Registration Dates

First Submitted

November 30, 2011

First Submitted That Met QC Criteria

November 30, 2011

First Posted (Estimate)

December 2, 2011

Study Record Updates

Last Update Posted (Actual)

October 9, 2019

Last Update Submitted That Met QC Criteria

September 27, 2019

Last Verified

April 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Anonymized individual patient level data will be provided in a secure access environment upon approval of a research proposal and a signed data sharing agreement.

IPD Sharing Time Frame

• Data are available 6 months after the primary publication and approval of the indication studied in the US and EU, whichever is later. Data will be indefinitely available for requesting.

IPD Sharing Access Criteria

A research proposal must be approved by an independent review panel and researchers must sign a data sharing agreement.

IPD Sharing Supporting Information Type

  • STUDY_PROTOCOL
  • SAP
  • CSR

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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