Clinical trial NCT01014793: Short and Long Term Efficacy of Combined Cabergoline and Octreotide Treatment in Acromegalic Patients
Official title: Short and Long Term Efficacy of Combined Treatment in Controlling IGI-I Levels in Acromegaly
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Acromegaly
Keywords: Acromegaly resistant
combined-treatment
dopamine agonist
Lead sponsor: Federal University of São Paulo
Sponsor class: OTHER
First posted: 2009-11-17
Enrollment: 19
Sex: ALL
Minimum age (years): 18
Maximum age (years): 80
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: CASE_ONLY
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Nineteen acromegalic patients (Neuroendocrine Unit-UNIFESP)with active disease, resistant to octreotide were enrolled

Brief summary: In acromegaly, nearly 40% of patients fail to control GH/IGF-I levels with somatostatin analogues (SA). Dopaminergic agonists (DA) are even less effective, but combination therapy with SA and DA normalizes IGF-I levels in 33-56% of patients in short-term studies. This study was designed to evaluate short and long term efficacy of cabergoline in controlling IGF-I levels in acromegalic patients receiving octreotide.


Eligibility criteria: Inclusion Criteria:

* Active disease, under octreotide treatment at least 9 months

Exclusion Criteria:

* Cabergoline allergy

Primary outcomes:
measure: Control of IGF-I levels
timeFrame: six months
Secondary outcomes:
measure: control IGI-I levels
timeFrame: six months
Other outcomes:
Locations:
city: Sao Paulo
country: Brazil
facility: Federal University of Sao Paulo
state: SP
Study officials:
affiliation: Federal University of São Paulo
name: Julio Abucham, PhD
role: STUDY_DIRECTOR
References:
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citation: Holdaway IM, Rajasoorya RC, Gamble GD. Factors influencing mortality in acromegaly. J Clin Endocrinol Metab. 2004 Feb;89(2):667-74. doi: 10.1210/jc.2003-031199.
citation: Melmed S, Colao A, Barkan A, Molitch M, Grossman AB, Kleinberg D, Clemmons D, Chanson P, Laws E, Schlechte J, Vance ML, Ho K, Giustina A; Acromegaly Consensus Group. Guidelines for acromegaly management: an update. J Clin Endocrinol Metab. 2009 May;94(5):1509-17. doi: 10.1210/jc.2008-2421. Epub 2009 Feb 10.
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citation: Selvarajah D, Webster J, Ross R, Newell-Price J. Effectiveness of adding dopamine agonist therapy to long-acting somatostatin analogues in the management of acromegaly. Eur J Endocrinol. 2005 Apr;152(4):569-74. doi: 10.1530/eje.1.01888.
citation: Abs R, Verhelst J, Maiter D, Van Acker K, Nobels F, Coolens JL, Mahler C, Beckers A. Cabergoline in the treatment of acromegaly: a study in 64 patients. J Clin Endocrinol Metab. 1998 Feb;83(2):374-8. doi: 10.1210/jcem.83.2.4556.
citation: Rocheville M, Lange DC, Kumar U, Patel SC, Patel RC, Patel YC. Receptors for dopamine and somatostatin: formation of hetero-oligomers with enhanced functional activity. Science. 2000 Apr 7;288(5463):154-7. doi: 10.1126/science.288.5463.154.
citation: Jallad RS, Bronstein MD. Optimizing medical therapy of acromegaly: beneficial effects of cabergoline in patients uncontrolled with long-acting release octreotide. Neuroendocrinology. 2009;90(1):82-92. doi: 10.1159/000218323. Epub 2009 May 8.
citation: Gatta B, Hau DH, Catargi B, Roger P, Tabarin A. Re-evaluation of the efficacy of the association of cabergoline to somatostatin analogues in acromegalic patients. Clin Endocrinol (Oxf). 2005 Oct;63(4):477-8. doi: 10.1111/j.1365-2265.2005.02329.x. No abstract available.