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Review

Current and emerging treatment options for endometriosis

ORCID Icon, & ORCID Icon
Pages 1109-1125 | Received 08 Jun 2018, Accepted 25 Jun 2018, Published online: 05 Jul 2018
 

ABSTRACT

Introduction: Pharmacotherapy has a pivotal role in the management of endometriosis with long-term treatments balancing clinical efficacy (control of pain symptoms and prevention of recurrence of the disease after surgery) with an acceptable safety profile. Treatment choice is based on several factors including age and patient preference, reproductive plans, intensity of pain, severity of disease and incidence of adverse effects.

Areas covered: The aim of this review is to provide the reader with a complete overview of drugs that are currently available or are under investigation for the treatment of endometriosis highlighting on-going clinical trials.

Expert opinion: Almost all of the available treatment options for endometriosis suppress ovarian function and are not curative. Combined oral contraceptives and progestins are commonly administered to these patients in order to ameliorate pain symptoms. Gonadotropin-releasing hormone-agonists are prescribed when first-line therapies are ineffective, not tolerated or contraindicated. Aromatase inhibitors should be reserved only for women who are refractory to other treatments. Amongst the drugs under development, gonadotropin-releasing hormone antagonists have shown the most promising results. Presently, are a number of potential therapies currently in pre-clinical or early clinical studies which may alter treatment strategies in the future although further studies are necessary.

Article highlights

  • Pharmacotherapy plays a pivotal role in the management of patients with endometriosis and long-term treatments should balance clinical efficacy (controlling pain symptoms and preventing recurrence of disease after surgery) with an acceptable safety-profile;

  • Combined oral contraceptives and progestins are commonly administered as first-line therapies for the management of endometriosis-associated pain. However, between one-fourth and one-third of patients do not respond to these treatments.

  • Gonadotropin-releasing hormone-agonists are prescribed when first-line therapies are ineffective, not tolerated or contraindicated. AIs should be reserved for patients who are refractory to other treatments only in a research environment. It is important to note that all of these drugs have a number of common AEs;

  • Almost all of the currently available treatment options for endometriosis suppress ovarian function and are not curative. For this reason, research into new drugs is unsurprisingly demanding. Amongst the drugs currently under investigation, gonadotropin-releasing hormone antagonists, which are currently in late stage clinical development have shown most promise;

  • There are a number of potential future therapies currently tested only in vitro, in animal models of endometriosis or in early clinical studies with a small sample size. Further studies are necessary to conclude whether these treatments would be of value for the treatment of endometriosis.

This box summarizes key points contained in the article.

Declaration of interest

The authors have no relevant affiliations or financial involvement with any organization or entity with a financial interest in or financial conflict with the subject matter or materials discussed in the manuscript. This includes employment, consultancies, honoraria, stock ownership or options, expert testimony, grants or patents received or pending, or royalties.

Additional information

Funding

This manuscript has not been funded.

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