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ProlactinomasValveCabNCT00460616

Cardiac Valve Complications in Prolactinomas Treated With Cabergoline

An observational study of Prolactinomas, run by Federico II University at 1 site in Italy.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

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… Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
Prolactinomas
What is being tested?
Cabergoline
Type of treatment
Pill or oral medicine
How many people
50 participants
Where
1 siteItaly
Study dates
Jan 2007to Sep 2007
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Three different study populations will be studied. * Group 1) Patients already receiving treatment with cabergoline for at least 12 months * Group 2) Newly diagnosed patients with hyperprolactinemia who never received treatment with dopamine-agonists * Group 3) Non hyperprolactinemic subjects matched with the patients for sex and age to be used as controls.

Who may be able to join

  • Patients with documented hyperprolactinemia receiving continuous treatment with cabergoline only for at least 12 months
  • Newly diagnosed patients with prolactinoma never previously receiving dopamine agonists treatment

Who cannot join

  • A history of cardiac valve abnormalities,
  • Previous use of anorectic drugs or other ergot-derived drugs,
  • Treatment with cabergoline for less than 12 months,
  • Valve calcification, valve regurgitation associated with annular dilatation or excessive leaflet motion,
  • Mitral regurgitation associated with left ventricular wall-motion abnormalities or left ventricular dilatation,
  • Withdrawal from cabergoline treatment for longer than 1 month, according with our treatment protocol (11).

Trial locations and contacts

1 site in 1 country.

Italy1 site
  • Department of Molecular and Clinical Endocrinology and Oncology, University Federico II of Naples

    Via S. Pansini 5 Naples, 80131

Other trials in Italy

About this study

Official title: Observational Study to Investigate the Prevalence of Cardiac Abnormalities and Valvular Regurgitation in Patients With Prolactinomas Treated Chronically With Cabergoline

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.

Read more

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.

Read the detailed description

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.

Conditions
Prolactinomas
Being tested
Cabergoline
Keywords
Prolactin, Prolactinomas, Dopamine-Agonists, Cabergoline, Cardiac valve disease
Medical subject headings
Prolactinoma, Heart Valve Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CabergolineDrug

    Also called Dostinex

    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.

Study groups in NCT00460616
Study groupRoleWhat they receive
1Patients already receiving treatment with cabergoline.
Receives: Drug: Cabergoline
2healthy controls sex and age-matched with the patients

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Prevalence of regurgitation (graded as mild, moderate, severe) at any cardiac valve.

    Measured: 9 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted16 Apr 2007 (estimated)
  2. Study startJan 2007
  3. Study completionSep 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
50 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00460616
Sponsor's protocol ID
NeuroendoUnit-2
Acronym
ValveCab
Status last verified
Oct 2007
First submitted
13 Apr 2007
Last updated
16 Apr 2008
Results posted
No
Data monitoring committee
No

Publications

  • 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.

    PubMed 12748199
  • 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.

    PubMed 16705142
  • 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.

    PubMed 16148287
  • 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.

    PubMed 12934784
  • 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.

    PubMed 15081648
  • 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.

    PubMed 16267335
  • 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.

    PubMed 12390688
  • 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.

    PubMed 17202453
  • 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.

    PubMed 17202454
  • 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.

    PubMed 11880025
  • 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.

    PubMed 14627787
  • 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.

    PubMed 23824978
  • 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.

    PubMed 18682513

Questions about this trial

What is this clinical trial studying?

An observational study of Prolactinomas, run by Federico II University at 1 site in Italy.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 2 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 16 Apr 2008. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Italy. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Prevalence of regurgitation (graded as mild, moderate, severe) at any cardiac valve. (time frame: 9 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00460616, which also lists 13 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 16 Apr 2008.

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