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Status unknownNCT03634371Updated Aug 16, 2018

Bioequivalence Study of Levothyroxine Sodium Tablets 150 mcg

A Phase 4 interventional study of Drug Levothyroxine 150 mcg and Drug Eutirox 150 mcg in Healthy, sponsored by Tecnoquimicas. Status unknown at 1 site in Colombia. Open to participants aged 18 Years to 50 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2018-08-16.

Sponsored by Tecnoquimicas · Phase 4, Interventional, and Treatment

The sponsor has not verified this record recently (last verified Aug 2018), so the status shown — last known as Active, not recruiting — may be out of date.
Phase
Phase 4
Study type
Interventional
Enrollment
80
Allocation
Randomized
Ages
18 Years to 50 Years
Sex
All
01

Study summary

The objective of this study is to establish the bioequivalence of two levothyroxine formulations through the estimation of T4 levels in serum samples after baseline correction, according to Food and Drugs Administration (FDA), World Health Organization (WHO) and Colombian National Vigilance Institute for Drugs and Food (INVIMA) guidelines.

Read the detailed description

Levothyroxine (T4) is used to treat patients with hypothyroidism and may often result in lifelong therapy. Its physiologically active metabolite is tri-iodothyronine (T3). Levothyroxine is also endogenously produced in the body. Since small changes in levothyroxine administration (e.g. change in brand or formulation) can cause significant changes in serum thyroid stimulating hormone (TSH) concentrations, precise and accurate TSH control is critical to avoid potential adverse iatrogenic effects. Tecnoquimicas modified its Levothyroxine tablets formulation in order to comply with new pharmacopeical specifications. It will then evaluate the impact on drug product performance based on pharmacokinetic (PK) measures of total serum T4 and total serum T3 of the new formulation of levothyroxine (Test formulation) relative to the reference formulation from Merck (Reference formulation)

This will be a single-center, open-label, two-period, two-treatment, two-sequence, randomized, single-dose, crossover study. 80 healthy adults will be randomized to receive a single dose (4 x 150 mcg tablets = 600 mcg) of the test formulation of levothyroxine and reference formulation of levothyroxine separately in each treatment period. There will be two treatment sequences (AB, BA) and a 42 day washout between the two treatment periods.

02

Conditions studied

  • Healthy
03

In context

Lead sponsor

Tecnoquimicas is the lead sponsor of 6 studies on the registry; 1 is open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 50 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Men and Women from 18 to 50 years old
  • Diagnosed as healthy after a clinical examination
  • BMI from 18 to 30 kg/m2
  • Not smoking for at least 3 months
  • To sign the informed consent
  • Not having participated in a similar study for at least 4 months

Exclusion criteria

Exclusion Criteria:

  • Renal, cardiac immunological, dermatological, endocrine, gastrointestinal, neurological or psychiatric condition
  • Hematologic disorders, specially anemia and polycythemia
  • Permanent or temporal pharmacological therapy, prescribed or not
  • Smoking for the last 3 months
  • Alcohol drinker more than once a week
  • Drug abuse
  • Drug hypersensitivity
  • Angioedema or anaphylaxis history
  • Pregnancy or breast-feeding
  • HIV o Hepatitis B diagnosed
  • Blood donor in the past 30 days
05

Study design

Phase
Phase 4
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Single (Participant)
Enrollment
80 participants (actual)

Study arms

  • Experimental
    Test Formulation of Levothyroxine

    Levothyroxine sodium tablets 150 mcg Single dose of 600 mcg administered in dosing period 1 or 2

    Drug: Drug Levothyroxine 150 mcg

  • Active comparator
    Reference formulation of Levothyroxine

    Eutirox 150 mcg Single dose of 600 mcg administered in dosing period 1 or 2

    Drug: Drug Eutirox 150 mcg

Interventions

  • DrugDrug Levothyroxine 150 mcg

    Administration of a 600 mcg levothyroxine dose

  • DrugDrug Eutirox 150 mcg

    Administration of a 600 mcg levothyroxine dose

06

What researchers measure

Primary outcomes

  1. (AUC) Area Under the Curve 0-48 for T4

    -0.5, -0.25, 0, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24 and 48 hours

    Time frame: From 0 to 48 hours

  2. Cmax for T4

    -0.5, -0.25, 0, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24 and 48 hours

    Time frame: From 0 to 48 hours

Secondary outcomes

  1. AUC 0-48 for T3

    -0.5, -0.25, 0, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24 and 48 hours

    Time frame: From 0 to 48 hours

  2. Cmax for T3

    Time frame: From 0 to 48 hours

  3. Tmax

    -0.5, -0.25, 0, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24 and 48 hours

    Time frame: From 0 to 48 hours

  4. Kel

    -0.5, -0.25, 0, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24 and 48 hours

    Time frame: From 0 to 48 hours

07

Study locations

1 site
  • Universidad de la Sabana
    Chía, Colombia
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 16, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03634371
Lead sponsor
Tecnoquimicas
Responsible party
Mauricio Vargas (Biopharmaceutical Studies Director, Tecnoquimicas) — Principal investigator
First posted
Aug 16, 2018
Start date
Aug 10, 2018
Primary completion
Oct 6, 2018 (estimated)
Completion
Oct 6, 2018 (estimated)
Last update
Aug 16, 2018

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is status unknown, as verified in Aug 2018. You cannot join it, but the record below documents what was studied.

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