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Dopamine agonists are first-line agents for the treatment of prolactinomas (1) and Parkinson's disease (2). There is evidence supporting a causal relationship between the occurrence of drug-induced "restrictive" valvular heart disease and treatment with pergolide (3): in several cases, the valvulopathy improved when pergolide was discontinued (4). Valvular heart damage has also been reported with the ergot-derived dopamine agonists bromocriptine and cabergoline (5,6).
Two recent studies (7,8) have further demonstrated that both pergolide and cabergoline are associated with an increased risk of new cardiac valve regurgitation in patients treated for Parkinson's disease.
The valvular abnormalities seen with ergot-derived dopamine agonists are similar to those observed in patients receiving ergot alkaloid agents (such as ergotamine and methysergide) in the treatment of migraine, or fenfluramine and dexfenfluramine in the treatment of obesity. These abnormalities also closely resemble carcinoid-related valvulopathies (9).
Cardiac valve disease has never been reported in patients with prolactinomas who require treatment with dopamine-agonists even life-long (1). At variance with patients with Parkinson's disease, patients with prolactinomas are younger and are treated with an average dose of dopamine-agonists that is significantly lower (median bromocriptine dose 5 mg/day and median cabergoline dose 1 mg/week). Because of the young age of treatment beginning (most patients with microprolactinomas start dopamine-agonist treatment in early adulthood), treatment might be continued for over 3 decades: the cumulative risk of low doses of dopamine agonists for such a long period of treatment is currently unknown.
To assess the prevalence of cardiac valve disease in patients treated with cabergoline, we wish to perform an echocardiography screening in a large representative sample of patients with prolactinoma who were treated with cabergoline for at least 12 months and in a group of control subjects recruited prospectively. We wish to evaluate the severity of regurgitation for the mitral, aortic, and tricuspid valves. Changes in cardiac valve apparatus was compared with treatment duration and cumulative cabergoline dose.
Within one week from a clinical observation in the outpatient service, all patients will be admitted to the hospital for a complete endocrine screening, a cardiological visit that will include an electrocardiogram and an echocardiogram.
The endocrine profile will include measurement of IGF-I, PRL, FSH, LH, 17-β-estradiol, testosterone, FT3, FT4, TSH, and cortisol at 8.00 in the morning after an overnight fasting.
The clinical profile will include blood pressure measurement at the right arm, with the subjects in relaxed sitting position. The average of six measurements (three taken by each of two examiners, in the same day of echocardiography, between 8.00-9.00 in the morning) with a mercury sphygmomanometer will be used in all analysis. According with the seventh report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure (10), hypertension, if present, is classified as mild (Stage 1) when the SBP or DBP were between 140 and 159 mmHg and between 90 and 99 mmHg, respectively; severe (Stage 2) when the SBP or DBP were >160 and >100 mmHg respectively; pre-hypertension is defined as SBP >120¬ and <140 and DBP >80 and <90 mmHg. Heart rate will be also measured.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 1 | Patients already receiving treatment with cabergoline. |
| |
| 2 | healthy controls sex and age-matched with the patients |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Cabergoline | Drug | According with our previous studies, in the patients with microprolactinoma and in those with non-tumoral hyperprolactinemia, cabergoline treatment was administered orally at a starting dose of 0.25 mg twice weekly for the first two weeks and then 0.5 mg twice weekly. After 2 months of treatment, dose adjustment was carried out every 2 months on the basis of serum PRL suppression. |
| Measure | Description | Time Frame |
|---|---|---|
| Prevalence of regurgitation (graded as mild, moderate, severe) at any cardiac valve. | 9 months |
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Inclusion Criteria:
Exclusion Criteria:
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Three different study populations will be studied.
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| Name | Affiliation | Role |
|---|---|---|
| Annamaria AL Colao, Prof. | Federico II University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Department of Molecular and Clinical Endocrinology and Oncology, University Federico II of Naples | Via S. Pansini 5 Naples | 80131 | Italy |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 12748199 | Background | Chobanian AV, Bakris GL, Black HR, Cushman WC, Green LA, Izzo JL Jr, Jones DW, Materson BJ, Oparil S, Wright JT Jr, Roccella EJ; National Heart, Lung, and Blood Institute Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure; National High Blood Pressure Education Program Coordinating Committee. The Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure: the JNC 7 report. JAMA. 2003 May 21;289(19):2560-72. doi: 10.1001/jama.289.19.2560. Epub 2003 May 14. | |
| 16705142 |
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| ID | Term |
|---|---|
| D015175 | Prolactinoma |
| D006349 | Heart Valve Diseases |
| ID | Term |
|---|---|
| D000236 | Adenoma |
| D009375 | Neoplasms, Glandular and Epithelial |
| D009370 | Neoplasms by Histologic Type |
| D009369 | Neoplasms |
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| ID | Term |
|---|---|
| D000077465 | Cabergoline |
| ID | Term |
|---|---|
| D004873 | Ergolines |
| D004876 | Ergot Alkaloids |
| D000470 | Alkaloids |
| D006571 | Heterocyclic Compounds |
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|
|
| Result |
| Gillam MP, Molitch ME, Lombardi G, Colao A. Advances in the treatment of prolactinomas. Endocr Rev. 2006 Aug;27(5):485-534. doi: 10.1210/er.2005-9998. Epub 2006 May 26. |
| 16148287 | Result | Nutt JG, Wooten GF. Clinical practice. Diagnosis and initial management of Parkinson's disease. N Engl J Med. 2005 Sep 8;353(10):1021-7. doi: 10.1056/NEJMcp043908. No abstract available. |
| 12934784 | Result | Flowers CM, Racoosin JA, Lu SL, Beitz JG. The US Food and Drug Administration's registry of patients with pergolide-associated valvular heart disease. Mayo Clin Proc. 2003 Jun;78(6):730-1. doi: 10.4065/78.6.730. No abstract available. |
| 15081648 | Result | Van Camp G, Flamez A, Cosyns B, Weytjens C, Muyldermans L, Van Zandijcke M, De Sutter J, Santens P, Decoodt P, Moerman C, Schoors D. Treatment of Parkinson's disease with pergolide and relation to restrictive valvular heart disease. Lancet. 2004 Apr 10;363(9416):1179-83. doi: 10.1016/S0140-6736(04)15945-X. |
| 16267335 | Result | Pinero A, Marcos-Alberca P, Fortes J. Cabergoline-related severe restrictive mitral regurgitation. N Engl J Med. 2005 Nov 3;353(18):1976-7. doi: 10.1056/NEJM200511033531822. No abstract available. |
| 12390688 | Result | Serratrice J, Disdier P, Habib G, Viallet F, Weiller PJ. Fibrotic valvular heart disease subsequent to bromocriptine treatment. Cardiol Rev. 2002 Nov-Dec;10(6):334-6. doi: 10.1097/00045415-200211000-00005. |
| 17202453 | Result | Schade R, Andersohn F, Suissa S, Haverkamp W, Garbe E. Dopamine agonists and the risk of cardiac-valve regurgitation. N Engl J Med. 2007 Jan 4;356(1):29-38. doi: 10.1056/NEJMoa062222. |
| 17202454 | Result | Zanettini R, Antonini A, Gatto G, Gentile R, Tesei S, Pezzoli G. Valvular heart disease and the use of dopamine agonists for Parkinson's disease. N Engl J Med. 2007 Jan 4;356(1):39-46. doi: 10.1056/NEJMoa054830. |
| 11880025 | Result | Botero M, Fuchs R, Paulus DA, Lind DS. Carcinoid heart disease: a case report and literature review. J Clin Anesth. 2002 Feb;14(1):57-63. doi: 10.1016/s0952-8180(01)00353-1. |
| 14627787 | Result | Colao A, Di Sarno A, Cappabianca P, Di Somma C, Pivonello R, Lombardi G. Withdrawal of long-term cabergoline therapy for tumoral and nontumoral hyperprolactinemia. N Engl J Med. 2003 Nov 20;349(21):2023-33. doi: 10.1056/NEJMoa022657. |
| 23824978 | Derived | Auriemma RS, Pivonello R, Perone Y, Grasso LF, Ferreri L, Simeoli C, Iacuaniello D, Gasperi M, Colao A. Safety of long-term treatment with cabergoline on cardiac valve disease in patients with prolactinomas. Eur J Endocrinol. 2013 Aug 28;169(3):359-66. doi: 10.1530/EJE-13-0231. Print 2013 Sep. |
| 18682513 | Derived | Colao A, Galderisi M, Di Sarno A, Pardo M, Gaccione M, D'Andrea M, Guerra E, Pivonello R, Lerro G, Lombardi G. Increased prevalence of tricuspid regurgitation in patients with prolactinomas chronically treated with cabergoline. J Clin Endocrinol Metab. 2008 Oct;93(10):3777-84. doi: 10.1210/jc.2007-1403. Epub 2008 Aug 5. |
| D010911 |
| Pituitary Neoplasms |
| D004701 | Endocrine Gland Neoplasms |
| D009371 | Neoplasms by Site |
| D010900 | Pituitary Diseases |
| D007027 | Hypothalamic Diseases |
| D001927 | Brain Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
| D004700 | Endocrine System Diseases |
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
| D006576 |
| Heterocyclic Compounds, 4 or More Rings |
| D000072471 | Heterocyclic Compounds, Fused-Ring |