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Approach to a Quantitative Follow-up of Non-thyroidal Illness Syndrome (AQUA FONTIS)

This study is ongoing, but not recruiting participants.
Wissenschaftskommission des Universitaetsklinikums Bergmannsheil
Private Sponsor (Chantal C. Guilhemotonia-Urban)
Information provided by (Responsible Party):
Johannes W. Dietrich, Ruhr University of Bochum Identifier:
First received: December 26, 2007
Last updated: February 4, 2013
Last verified: February 2013

AQUA FONTIS is a unicentric, multidisciplinary, prospective cross-section and longitudinal study that aims at the development of a more clear-cut diagnostic definition and classification of non-thyroidal illness syndrome (NTIS).

Euthyroid Sick Syndromes
Non-thyroidal Illness Syndrome
Low T3 Syndrome

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: Development of Rational and Standardized Diagnostics and Staging for a Differentiated Risk Stratification of Non-thyroidal Illness Syndrome

Further study details as provided by Ruhr University of Bochum:

Primary Outcome Measures:
  • Assessment of the significance of an innovative physiological index approach (SPINA) in differential diagnosis between NTIS and latent thyrotoxicosis. [ Time Frame: Three weeks after admission to ICU (evaluation point 1.5) and additionally on day of discharge from the hospital (evaluation point 1.999) ] [ Designated as safety issue: No ]
    Diagnostic accuracy (sensitivity, specificity and AUCs of ROC analysis) of the thyroid's calculated secretory capacity (GT) for differentiation between NTIS and subclinical hyperthyroidism.

Secondary Outcome Measures:
  • Correlation of variables that quantify distinct components of NTIS with independent predictors of evolution, survival or pathophysiological condition and influencing or disturbing factors like medication. [ Time Frame: 24 hours (evaluation point 1.1), 72 hours (evaluation point 1.2) and further on weekly (evaluation points 1.3 to 1.5) after admission to the intensive care unit up to the day of discharge from hospital (evaluation point 1.999) ] [ Designated as safety issue: No ]

Biospecimen Retention:   Samples Without DNA

Kryobase with serum and urine samples

Enrollment: 590
Study Start Date: May 2007
Estimated Study Completion Date: October 2013
Estimated Primary Completion Date: July 2013 (Final data collection date for primary outcome measure)
Detailed Description:

Detailed Description:

Non-thyroidal illness syndrome (NTIS or euthyroid sick syndrome) is a complex endocrine condition that may occur in critically ill patients. It is associated with significantly increased morbidity and mortality.

NTIS is characterised by three components that may occur single or in combination:

  1. central hypothyroidism (transient thyrotropic insufficiency)
  2. impaired protein binding of thyroid hormones and
  3. reduced formation of T3 and increased conversion to rT3 (low-T3-syndrome).

Despite of long lasting research to some of its details NTIS is still poorly characterized in an integrative view. Additionally, it lacks a clinically usable classification.

Given the fact that patients with NTIS are faced with poor prognosis, several studies have been conducted in the past evaluating the question of possible treatment. However, they didn't yield unambiguous results, maybe due to the fact that these studies did not differentiate among the distinct components of NTIS.

Therefore, this study is intended to develop a clear-cut definition and classification of NTIS in order to set a foundation for future therapeutic studies.

This study recruits critically ill patients treated in medical and surgical intensive care units of the Bergmannsheil University hospitals for evaluation of integrative thyrotropic control and follow-up. From these data the correlation of individual prognosis with laboratory-defined components of NTIS will be determined.

This project is intended to:

  1. deliver a prognostical aid by providing a differentiated classification,
  2. to contribute to a standardised, rational and inexpensive diagnostical procedure and
  3. to lay the foundation for future therapeutic trials by identifying subgroups that may benefit from therapy.

Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population

Critically ill patients treated at three intensive care units of the Bergmannsheil university hospitals and that comply with the eligibility criteria.


Inclusion Criteria:

  • Severe illness requiring intensive care
  • Stay of at least 24 hours at the ICU

Exclusion Criteria:

  • Substituted hypothyroidism or substitution in case of thyroid carcinoma
  • Hyperthyroidism that is treated with thyrostatic agents and exhibits a THS level not below the reference region
  • Manifest AIDS disease
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00591032

Klinikum Ludwigsburg-Bietigheim
Bietigheim, BW, Germany, D-74321
Department for medical informatics, biometry and epidemiology, Ruhr-University of Bochum
Bochum, NRW, Germany, D-44780
Institute of Clinical Chemistry, Transfusion and Laboratory Medicine, Universitätsklinikum Bergmannsheil, Ruhr-Universität Bochum
Bochum, NRW, Germany, D-44789
Medizinische Klinik I, Universitätsklinikum Bergmannsheil, Ruhr-Universität Bochum
Bochum, NRW, Germany, D-44789
Klinik für Innere Medizin, Evangelisches Krankenhaus Hattingen
Hattingen, NRW, Germany, D-45527
Abteilung für Laboratoriums- und Transfusionsmedizin, Westpfalz-Klinikum Kaiserslautern
Kaiserslautern, RP, Germany, D-67655
Sponsors and Collaborators
Ruhr University of Bochum
Wissenschaftskommission des Universitaetsklinikums Bergmannsheil
Private Sponsor (Chantal C. Guilhemotonia-Urban)
Principal Investigator: Johannes W Dietrich, M.D. Medizinische Klinik I, Universitätsklinikum Bergmannsheil, Ruhr-Universität Bochum
Study Director: Steffen Hering, M.D. Medizinische Klinik I, Universitätsklinikum Bergmannsheil, Ruhr-Universität Bochum
Study Chair: H H Klein, M.D. Medizinische Klinik I, Universitätsklinikum Bergmannsheil, Ruhr-Universität Bochum
  More Information

Additional Information:
Responsible Party: Johannes W. Dietrich, Senior consultant endocrinologist, Ruhr University of Bochum Identifier: NCT00591032     History of Changes
Other Study ID Numbers: 2006-Innere-565, 2848, U1111-1122-3245, DRKS00003152
Study First Received: December 26, 2007
Last Updated: February 4, 2013
Health Authority: Germany: Ärztekammer Westfalen-Lippe
Germany: Ethics Commission of the Ruhr-University of Bochum
Germany: The Ministry of Work, Health and Social Affairs of the State North Rhine-Westphalia

Keywords provided by Ruhr University of Bochum:
Critical illness
Euthyroid sick syndromes
Intensive care
Non-thyroidal illness syndrome
Low-T3 syndrome

Additional relevant MeSH terms:
Euthyroid Sick Syndromes
Endocrine System Diseases
Pathologic Processes
Thyroid Diseases processed this record on November 24, 2014