Abstract
The aim of the present study was to investigate the effect of a new galenic injectable form of bromocriptine (Parlodel LA), characterized by sustained release of bromocriptine for 4–6 weeks, in 3 patients with prolactin-secreting macroadenomas through a 42-day follow-up. The following parameters were considered: decrease of plasma prolactin levels, reduction of tumor size studied by seriate CT scan controls and recovery of eventual visual fields impairments. Parlodel LA induced a sharp decrease of plasma prolactin levels for at least 42 days, without reaching normal values. This treatment also caused a rapid and marked shrinkage of tumors in all patients. Moreover, in two patients with constriction of visual fields a clear and progressive improvement in one and only a slight amelioration in the other were observed. There were almost no side effects except for mild nausea in one patient and transient orthostatic in another. These results demonstrate that Parlodel LA produces a long-lasting reduction of plasma prolactin levels and a rapid shrinkage of the tumor with almost no side effects.
Similar content being viewed by others
References
Molitch M.E., Elton R.L., Blackwell R.E., Caldwell B., Cheung R.J., Jaffe R., Joplin J., Robbins R.J., Tyson J., Thorner M.O., and the Bromocriptine Study Group. Bromocriptine as primary therapy for prolactin secreting macroadenomas: results of a prospective multicenter study. J. Clin. Endocrinol. Metab. 60: 698, 1985.
Thorner M.O., Martin W.H., Rogol A.D., Morris J.L., Perryman R.L., Conway B.P., Howards S.S., Wolffman M.G., MacLeod R.M. Rapid regression of pituitary prolactinomas during bromocriptine treatment. J. Clin. Endocrinol. Metab. 51: 438, 1980.
Vance M.L., Evans W.S., Thorner M.O. Drugs five years later. Bromocriptine. Ann. Intern. Med. 100: 78, 1984.
Lancranjan I., Rolland R., L’Hermite M. Data with a new galenical form of bromocriptine in suppression of lactation. 7th Int. Congress of Endocrinology, Quebec City, Abs. 1307, 1984.
Chavez H., Valsamis J., Westelinck K., Haemers M., L’Hermite M. Inhibition of puerperal lactation by means of a single injection of bromocriptine retard. 4th Int. Congress on Prolactin, Charlottesville, Abs. 141, 1984.
Ciccarelli E., Ghigo E., Andreis M., Mazza E., Bertagna A., Molinatti G.M., Massara F., Lancranjan I., Camanni F. Effects of a new long-acting form of bromocriptine on tumorous hyperprolactinemia. Int. Congress Endocrinology ’85, Turin, Abs. 98, 1985.
Cavagnini F., Lancranjan I., Maraschini C., Invitti C., Brunani A., Falsetti L., Motta T. Effectiveness of a long-acting preparation of bromocriptine in prolactin and/or growth hormone secreting adenomas. J. Endocrinol. Invest. 8 (suppl. 3): 190, 1985.
Grossman A., Wass J.A.H., Besser G.M. A new injectable form of bromocriptine for the treatment of hyperprolactinemia and acromegaly. J. Endocrinol. Invest. 8 (suppl. 3): 104, 1985.
L’Hermite M., Copinschi G., Couturier E., Stevenaert A. Primary treatment of macroprolactinomas by injectable bromocriptine retard. J. Endocrinol. Invest. 8 (suppl. 3): 191, 1985.
Lancranjan I., Montini M., Pagani. Data with a new galenical form of bromocriptine in patients with prolactinomas. 67th Annual Meeting of the Endocrine Society, Baltimore, Abs. 164, 1985.
Montini M., Lancranjan I., Ferrari L., Salmoiraghi M., Pagani M.D., Gianola D., Parodi D., Pagani G. Data with a new galenic form of bromocriptine in patients with microprolactinomas. Int. Congress Endocrinology ’85, Turin, Abs. 108, 1985.
Delpozo E., Schluter K., Nuesch E., Rosenthaler J., Kerp L. Pharmacokinetics of a long-acting bromocriptine preparation (Parlodel LA) and its effect on release of prolactin and growth hormone. Eur. J. Clin. Pharmacol. 29: 615, 1986.
Grossman A., Ross R., Wass J.A.H., Besser G.M. Depot-bromocriptine treatment for prolactinomas and acromegaly. Clin. Endocrinol. (Oxf.) 24: 231, 1986.
Montini M., Pagani G., Gianola D., Pagani M.D., Salmoiraghi M., Ferrari L., Lancranjan I. Long-lasting suppression of prolactin secretion and rapid shrinkage of prolactinomas after a long-acting, injectable form of bromocriptine. J. Clin. Endocrinol. Metab. 63: 266, 1986.
Tindall G.T., Kovacs K., Horvath E., Thorner M.O. Human prolactin-producing adenomas and bromocriptine: a histological, immunocytochemical, ultrastructural, and morphometric study. J. Clin. Endocrinol. Metab. 55: 1178, 1982.
Bassetti M., Spada A., Pezzo G., Giannattasio G. Bromocriptine treatment reduces the cell size in human macroprolactinomas: a morphometric study. J. Clin. Endocrinol. Metab. 58: 268, 1984.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Schettini, G., Lombardi, G., Merola, B. et al. Effectiveness of a single injectable dose of bromocriptine long acting in the treatment of macroprolactinomas. J Endocrinol Invest 11, 47–51 (1988). https://doi.org/10.1007/BF03350096
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF03350096