A Single Dose Study To Test Two Pediatric Forms Of Ritlecitinib Compared With Adult Ritlecitinib In Healthy Adults

Healthy Participants Clinical Trial

Official title:

A PHASE 1, RANDOMIZED, OPEN-LABEL, CROSS-OVER, SINGLE DOSE STUDY TO ESTIMATE THE RELATIVE BIOAVAILABILITY OF PEDIATRIC RITLECITINIB (PF-06651600) CAPSULES AND SPRAY CONGEALED BEADS RELATIVE TO ADULT CAPSULES IN HEALTHY ADULT PARTICIPANTS

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT05040295
• Other study ID #: B7981030
• Status: Completed
• Phase: Phase 1
• Start date: September 10, 2021
• Est. completion date: November 19, 2021

Study information

• Verified date: October 2022
• Source: Pfizer
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

A phase I, single dose study to test two forms of pediatric ritlecitinib compared to adult ritlecitinib in healthy adults aged 18-55 years old. Approximately 12 adults will participate for approximately 2.5 months.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 12
• Est. completion date: November 19, 2021
• Est. primary completion date: November 19, 2021
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: All
• Age group: 18 Years to 55 Years

Eligibility

Inclusion Criteria:

• Male and female participants who are healthy as determined by medical evaluation including a detailed medical history, complete (full) physical examination, which includes BP and pulse rate measurement, clinical laboratory tests, and 12-lead ECG.

• BMI of 17.5 to 30.5 kg/m2; and a total body weight >50 kg (110 lb).

Exclusion Criteria:

• Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, neurological, dermatological, or allergic disease (including drug allergies, but excluding untreated, asymptomatic, seasonal allergies at the time of dosing).

• Any condition possibly affecting drug absorption (eg, gastrectomy, cholecystectomy).

• Known immunodeficiency disorder, including positive serology for HIV at screening, or a first degree relative with a hereditary immunodeficiency

• Infection with hepatitis B or hepatitis C viruses.

• History of any lymphoproliferative disorder

• Known present or a history of malignancy other than a successfully treated or excised nonmetastatic basal cell or squamous cell cancer of the skin or cervical carcinoma in situ

Related Conditions & MeSH terms

• Healthy Participants

Intervention

Drug:
• ritlecitinib
30 mg intact adult capsule
• ritlecitinib
10 mg pediatric capsule
• ritlecitinib
30 mg spray congealed beads

Locations

Country	Name	City	State
United States	New Haven Clinical Research Unit	New Haven	Connecticut

Sponsors (1)

Lead Sponsor	Collaborator
Pfizer

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Area Under the Plasma Concentration-Time Profile From Time 0 Extrapolated to Infinite Time (AUCinf) for Ritlecitinib	Plasma AUCinf for ritlecitinib is reported. AUCinf was calculated as [AUClast+(Clast*/kel)], where AUClast is the area under the plasma concentration-time profile from time 0 to the time of the Clast, Clast is the last quantifiable concentration, Clast* is the predicted plasma concentration at the last quantifiable time point estimated from the log-linear regression analysis, and kel is the terminal phase rate constant calculated by a linear regression of the log-linear concentration-time curve.	Pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 9, 12, 16, and 24 hours post dose on Day 1 in each period
Primary	Maximum Plasma Concentration (Cmax) for Ritlecitinib	Plasma Cmax for ritlecitinib is reported.	Pre-dose, 0.25, 0.5, 1, 1.5, 2, 3, 4, 6, 9, 12, 16, and 24 hours post dose on Day 1 in each period
Secondary	Number of Participants With Treatment-Emergent Adverse Events (All Causalities and Treatment-Related)	An adverse event (AE) was any untoward medical occurrence attributed to study drug in a participant who received study drug. Treatment-related AE was any untoward medical occurrence attributed to study treatment in a participant who received study treatment. Treatment-emergent AEs (TEAEs) = between first dose of study treatment and up to 35 days after last dose that were absent before treatment or that worsened relative to pretreatment state. A serious AE (SAE) was an AE resulting in any of the following outcomes or deemed significant for any other reason: death; initial or prolonged inpatient hospitalization; life-threatening experience (immediate risk of dying); persistent or significant disability/incapacity; congenital anomaly. Treatment-related AEs and SAEs were determined by the investigator. Severe=an event that prevents normal everyday activities.	Post first dose of study intervention on Period 1 Day 1 up to 35 days post last dose of study intervention on Period 3 Day 1 (maximum of 40 days)
Secondary	Number of Participants With Laboratory Abnormalities Without Regard to Baseline Abnormality	Following parameters were analyzed for laboratory examination: hematology (hemoglobin, hematocrit, red blood cell count, platelet count, white blood cell count, total neutrophils, eosinophils, monocytes, basophils, lymphocytes, etc), chemistry (fasting glucose, calcium, sodium, potassium, chloride, total bilirubin, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase, uric acid, total protein, albumin, etc), and urinalysis (glucose, protein, blood, ketones, nitrites, leukocyte esterase, etc). Baseline = the last pre-dose measurement before Period 1 Day 1 (ie, first dose of study intervention). Laboratory abnormalities meeting pre-defined criteria are reported for this outcome measure. ULN=upper limit of normal. LLN=lower limit of normal. HPF=high-powered field. mEq=milliequivalent. L=liter.	Baseline up to Period 3 Day 2 (maximum of 7 days)

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