Company Overview

Repros Therapeutics Inc. ® was organized on August 20, 1987. We are a development stage biopharmaceutical company focused on the development of new drugs to treat hormonal and reproductive system disorders.

Our current pipeline consists of the following:


Male reproductive health:

Enclomiphene is a single isomer of clomiphene citrate and is an orally active proprietary small molecule compound. We are developing enclomiphene for men of reproductive age with low testosterone due to secondary hypogonadism. Secondary hypogonadism is associated with obesity and we believe it is among the most common causes of low testosterone in men. It is estimated that 13 million men in the U.S. experience low levels of testosterone, and the condition is becoming recognized with more frequency.

We believe enclomiphene is highly differentiated from currently marketed testosterone treatments or those treatments in late stage development because it is an oral therapy and it treats the cause of secondary hypogonadism, which is inadequate pituitary hormones. We believe that by treating the cause of secondary hypogonadism, enclomiphene also has the potential to maintain reproductive status and potentially improve overall metabolic profiles.

In addition, the Company continues to consider the potential for use of enclomiphene as an adjuvant therapy in hypogonadal men with Type 2 diabetes. The Company has an active IND open with the Division of Endocrine and Metabolic Products at the FDA for this indication. We believe there may be an association between the restoration of normal pituitary function and improvement of metabolic conditions such as Type 2 diabetes. Research has been published which demonstrates that increased insulin resistance, a characteristic implicated in Type 2 diabetes, is associated with the onset of secondary hypogonadism.


Female reproductive health:

Proellex is a new chemical entity that acts as a selective blocker of the progesterone receptor and is being developed for the treatment of symptoms associated with uterine fibroids and endometriosis. We are currently developing Proellex for both oral and vaginal delivery, as the FDA has accepted an Investigational New Drug Application for vaginally delivered Proellex®. There are currently no FDA-approved orally administered drug treatments for the long-term treatment of either uterine fibroids or endometriosis. The National Uterine Fibroids Foundation estimates that 80% of all women in the U.S. have uterine fibroids, and one in four of these women have symptoms severe enough to require treatment.

The current standards of care for uterine fibroids and endometriosis consist of surgery or short-term treatment with gonadotropin-releasing hormone ("GnRH") agonists drugs. GnRH agonists induce a low estrogen, menopausal-like state and promote bone loss and are not recommended for use for more than six months.

Our common stock is traded on the NASDAQ Global Market under our ticker symbol, RPRX.

Available Information

For additional information please visit the Securities and Exchange Commission (SEC) Internet site ( which makes available free of charge to all interested parties our annual report on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, and all amendments to those reports, as well our proxy information and statements and all other reports and schedules filed electronically with the SEC. The SEC website can also be accessed through this website under Investors and Media - SEC Filings.

2408 Timberloch Place, B-7
The Woodlands, Texas 77380
281-719-3446 fax