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Prospective Study on Changes in Acromegaly

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT01612624
Recruitment Status : Unknown
Verified May 2012 by Radboud University.
Recruitment status was:  Recruiting
First Posted : June 6, 2012
Last Update Posted : June 6, 2012
Information provided by (Responsible Party):
Radboud University

Brief Summary:

Rationale: Acromegaly is the clinical syndrome that results from an excess of growth hormone (GH). Craniofacial and hand disproportions due to soft tissue swelling and new bone formation are highly prevalent in patients with active acromegaly. Besides the cosmetic aspects, these changes can impair the quality of life because of the significant morbidity with respect to oral, maxillofacial and hand pathologies as well as respiratory problems such as sleep apnea and changes in speech. At present it is unclear if these craniofacial and hand disproportions, sleep apnea and speech changes are (partially) reversible after successful treatment. Therefore there is no consensus about the information patients should be given about (partial) recovery of facial and hand disproportions after treatment and how the follow-up with respect to oral, maxillofacial, respiratory and hand pathology should be organized. Facial and hand analysis using a 3D stereophotograph and a 3D fusion model of a 3D stereophotograph and a 3D skull reconstruction via cone beam computed tomography (CT)-scan makes it possible to investigate the craniofacial changes due to acromegaly in all facial dimensions together (dentition, bone and soft tissue) and the relational proportions between these facial structures. 3D stereophotography can do the same for the soft tissues of the hand. Combined with disease specific and general quality of life (QOL) questionnaires, a correlation between quality of life and craniofacial and hand disproportions can be determined. Combined with sleep- and speech analysis, a correlation between sleep apnea, speech and craniofacial disproportions can be determined.

Primary objective: To investigate the changes in facial- and hand analysis in patients with acromegaly as a result of medical treatment and pituitary surgery, and to investigate the changes in relational proportions between facial- and hand structures, incidence and severity of sleep apnea, incidence and severity of speech changes and QOL.

Study design: a prospective case-control study. Study population: Approximately thirty patients newly diagnosed with acromegaly . The results of facial and hand analysis, sleep apnea research and speech analysis of the patient group in different phases of the disease will be compared to the results of a healthy control group.

Main study parameters/endpoints: Parameters of facial analysis with 3D stereophotography and cone beam CT and hand analysis with 3D stereophotography , biochemical parameters of disease activity, disease related QOL assessed by 2 validated QOL questionnaires (,the AcroQol and RAND-36 ), speech analysis, the results of the voice handicap index questionnaire and severity of sleep apnea assessed by complete overnight polysomnography and the Epworth sleepiness scale questionnaire.

Nature and extent of the burden and risks associated with participation, benefit and group relatedness: As a result of participating in this study, subjects have to undergo a cone beam CT. The cone beam CT is associated with exposure to X-ray radiation of 0.069-0.135mSv. This is the same amount of radiation as the amount of background radiation that each person receives in 7 days time during daily life. No adverse effects are expected from this amount of exposure. The investigations will take 10-70 minutes adjacent to every regular outpatient clinic visit. In addition , for polysomnography, subjects will be investigated overnight one or three times in 2,5 years, depending on the results of the first screening polysomnography.

Assessment of changes in body appearance, sleep disturbances, speech changes and QOL in a prospective longitudinal fashion will increase the knowledge of the impact of the disease on patient perception of well-being and functioning and will help us refine the treatment goals in patients with acromegaly

Condition or disease

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Study Type : Observational
Estimated Enrollment : 60 participants
Observational Model: Case-Control
Time Perspective: Prospective
Study Start Date : May 2012

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Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Sampling Method:   Non-Probability Sample
Study Population
Acromegaly patients and healthy controls

Inclusion Criteria:

  • Newly diagnosed acromegaly
  • Diagnosis is biochemically confirmed by an increased IGF-1 level (> mean +2 standard deviations for age) and insufficient suppression of serum GH levels (e.g. GH levels ≥ 2mU/l) during oral glucose tolerance test.
  • Subjects should be over 18 years old with the ability to read and comprehend the Dutch language

Exclusion Criteria:

4.3 Exclusion criteria imaging face:

  • Pregnancy
  • Maxillofacial surgical treatment in the past.

Exclusion criteria 3D imaging of the hand:

  • Hand surgery in the past

Exclusion criteria Speech analysis:

  • Speech pathology unrelated to acromegaly

Exclusion criteria polysomnography:

  • Co-morbidities that could influence the prevalence of sleep apnea (e.g. muscular dystrophy, known hypothyroidism)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT01612624

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Contact: Sean Roerink, M.D. +31243614599

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Radboud University Nijmegen Medical Center Recruiting
Nijmegen, Gelderland, Netherlands, 6525 GA
Contact: Sean Roerink, M.D.    +3124-3614599   
Sponsors and Collaborators
Radboud University
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Responsible Party: Radboud University Identifier: NCT01612624    
Other Study ID Numbers: AP1
First Posted: June 6, 2012    Key Record Dates
Last Update Posted: June 6, 2012
Last Verified: May 2012
Additional relevant MeSH terms:
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Bone Diseases, Endocrine
Bone Diseases
Musculoskeletal Diseases
Pituitary Diseases
Hypothalamic Diseases
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Endocrine System Diseases