MedPath

Use of Tirosint®-SOL or Tablet Formulations of Levothyroxine in Pediatric Patients With Congenital Hypothyroidism (CH)

Phase 4
Terminated
Conditions
Congenital Hypothyroidism
Interventions
Drug: Tirosint®-SOL
Registration Number
NCT05228184
Lead Sponsor
IBSA Institut Biochimique SA
Brief Summary

This is a multi-center, prospective, parallel-group, open-label, randomized clinical study in one hundred and twenty-six (126) neonates and infants diagnosed with CH.

Subjects will be randomized in a 2:1 ratio to Treatment (Tirosint®-SOL) or Control (conventional therapy with levothyroxine sodium crushed tablets).

Detailed Description

Newly diagnosed neonates will be randomly assigned to start therapy with LT4 at the initial dose recommended by the Standard of Care (SOC). Infants already on LT4 therapy will continue at the same daily dose within the randomly assigned treatment group (dose adjustments are allowed, if needed based on laboratory parameters and clinical response). Once enrolled, subjects will be treated and followed for 12 months (±1.5 months), participating in 7-8 study visits, consisting of 6-7 inclinic and 1-2 (or more if follow-up visits are required) telemedicine (TM) visits. The total number of visits depends on the age at inclusion.

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
34
Inclusion Criteria
  • Male and female patient aged 0 to 9 months

  • Primary CH diagnosis with elevated TSH and low or normal FT4, requiring treatment with LT4, under either of the following conditions:

    • Neonates newly diagnosed with primary CH and needing to initiate LT4 therapy, or
    • Infants previously diagnosed with primary CH and who are already on LT4 therapy for at least 3 weeks;
  • Provide and comply with the informed consent.

Exclusion Criteria
  • Preterm neonates with a gestational age < 37 weeks;

  • Low birth weight (LBW) or very low birth weight (VLBW) neonates (weight < 2.5 kg) or VLBW infants (weight < 1.5 kg);

  • Neonates in neonatal intensive care units or requiring admission to NICU or neonates/infants hospitalized or requiring hospitalization or in fragile health conditions (e.g. with serious health problems or complications);

  • Neonates with CH diagnosis > 4 weeks after delivery;

  • Diagnosis of primary gastrointestinal disease:

    • Gastroesophageal reflux requiring medical therapy (beyond thickening of formula or position);
    • Anatomic defects (e.g. intestinal atresia, malrotation, tracheoesophageal fistula, pyloric stenosis, Hirschsprung's disease, gastroschisis);
    • Dietary allergy (e.g. cow's milk protein allergy);
    • Malabsorption related to cystic fibrosis, celiac disease and others;
    • Necrotizing enterocolitis requiring surgical resection;
  • Known or suspected adrenal insufficiency (e.g. congenital adrenal hyperplasia, hypopituitarism);

  • Diagnosis of congenital cardiac disease, cardiac insufficiency or risk for cardiac failure;

  • Diagnosis of chromosomopathy;

  • Diagnosis of central hypothyroidism;

  • Hypersensitivity to glycerol;

  • Concomitant anticonvulsant medications, liothyronine, combination of LT4 and liothyronine, thyroid extracts and/or chronic or long-term use of systemic glucocorticoids

  • History of nonadherence with medication or medical visit schedule; or

  • Any condition for which, participation would not be in the best interest of the patient or that could limit protocol specified assessments.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
TreatmentTirosint®-SOLTirosint®-SOL (levothyroxine sodium) oral solution (IBSA Pharma Inc.) at the following strengths: 13, 25, 37.5, 44, 50, 62.5, 75, 88, 100 mcg.
ControlLevothyroxine SodiumCrushed levothyroxine sodium tablets
Primary Outcome Measures
NameTimeMethod
LT4 dose required to maintain TSH in target range (unit: mcg/kg/day)Up to 22 months based on age group

The LT4 dose is calculated based on the daily LT4 dose (mcg) used in the time period preceding the visit (or the average daily dose on a weekly basis if more than one strength is used over the course of the week) and the body weight (kg) measured during the visit.

Secondary Outcome Measures
NameTimeMethod
Growth pattern for length of bodyUp to 22 months based on age group

Subject growth measurements in Length (cm) of body

Frequency of dose adjustmentsUp to 22 months based on age group

Percent number of subjects (%) who need a dose adjustment in the long-term follow up phase

Number of events of FT4 values below the middle of the laboratory normal rangeUp to 22 months based on age group

FT4 value below the middle of the laboratory normal range

Hormonal profile for FT4Up to 22 months based on age group

FT4 (unit ng/dL)

Hormonal profile for TSHUp to 22 months based on age group

TSH (unit mU/L)

Parent/caregiver reports of satisfaction and ease of administrationUp to 22 months based on age group

Parents Satisfaction Questionnaire is a study-specific tool measuring coping and mental well-being and satisfaction

Score: 1-Strongly disagree, 2-Disagree, 3-Neutral, 4-Agree, 5-Strongly agree.

Number of events of TSH values above 4.5 mU/LUp to 22 months based on age group

TSH value above 4.5 mU/L

Subject acceptance of the treatment (CareCAT)Up to 22 months based on age group

Caregiver Administered Children's Acceptance Tool (CareCAT) is a 5-point nominal scale used to assess the acceptance of oral medicines in infants and toddlers who are unable to verbally give their opinion about a medicine

Signs and symptoms of hypothyroidismUp to 22 months based on age group

Total number of subjects experiencing hypothyroidism's signs and symptoms

Growth pattern for body weightUp to 22 months based on age group

Subject growth measurements in Body weight (kg)

Growth pattern for head circumferenceUp to 22 months based on age group

Subject growth measurements in Head circumference (cm)

Signs and symptoms of hyperthyroidismUp to 22 months based on age group

Total number of subjects experiencing hyperthyroidism's signs and symptoms

Trial Locations

Locations (12)

CHOC Children's Hospital

🇺🇸

Orange, California, United States

Children's Hospital of Los Angeles

🇺🇸

Los Angeles, California, United States

Children's Hospital of Atlanta

🇺🇸

Atlanta, Georgia, United States

Children's Hospital of Philadelphia

🇺🇸

Philadelphia, Pennsylvania, United States

Ann & Robert H. Lurie Children's Hospital of Chicago

🇺🇸

Chicago, Illinois, United States

Icahn School of Medicine at Mount Sinai

🇺🇸

New York, New York, United States

Cook Children's Health Care Systems

🇺🇸

Fort Worth, Texas, United States

University of California San Francisco

🇺🇸

San Francisco, California, United States

Yale University

🇺🇸

New Haven, Connecticut, United States

Boston Children's Hospital

🇺🇸

Boston, Massachusetts, United States

Children's Mercy Hospital and Clinics

🇺🇸

Kansas City, Missouri, United States

Children's Hospital Medical Center

🇺🇸

Cincinnati, Ohio, United States

© Copyright 2025. All Rights Reserved by MedPath