Repros Therapeutics Inc. (Public, NASDAQ:RPRX)

Discuss Repros Therapeutics Inc. (Public, NASDAQ:RPRX) at the Men's Economics; [IMO, RPRX is a SCAM. I highly suggest staying away from this company as an investment. As their own biography ...

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Old 08-13-2011, 09:52 AM
Michael Scally MD's Avatar
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Default Repros Therapeutics Inc. (Public, NASDAQ:RPRX)

[IMO, RPRX is a SCAM. I highly suggest staying away from this company as an investment. As their own biography states, they have been a Public Company since 1987 (24+ years) and have absolutely NOTHING to show for it except one failure after another. For men, Androxal [Enclomiphene] is the attractive treatment, but it will NEVER be approved for the indication studied. As far as Proellex, this drug is DOA.]


Repros Therapeutics Inc. (Public, NASDAQ:RPRX) Repros Therapeutics
IR: Repros Therapeutics

GF: Repros Therapeutics Inc.: NASDAQ:RPRX quotes & news - Google Finance
YF: RPRX: Summary for Repros Therapeutics Inc.- Yahoo! Finance
SA: Repros Therapeutics Inc. (RPRX) Stock - Seeking Alpha

SEC: EDGAR Search Results

2011 10-2Q: http://www.sec.gov/Archives/edgar/da...229838_10q.htm
2010 10-K: Unassociated Document


Repros Therapeutics Inc. was organized on August 20, 1987. We are a development stage biopharmaceutical company focused on the development of oral small molecule drugs for major unmet medical needs in male and female health.

Our current product pipeline (with the respective status of development) consists of the following:

Androxal® (male reproductive health):

Completed Phase 2b proof-of-concept trial in men being treated for low testosterone levels who want to improve or maintain their fertility and/or sperm number and function; and

Our Investigational New Drug Application, or IND, for the study of oral Androxal® in the treatment of hypogonadal men with type 2 diabetes was accepted by the FDA and, thus, we may initiate a Phase 2a trial.

Our primary product candidate, Androxal®, is a single isomer of clomiphene citrate and is an orally active proprietary small molecule compound being developed for men of reproductive age with low testosterone levels who want to improve or maintain their fertility and/or sperm function while being treated for low testosterone. Additionally, Repros plans to develop Androxal® for men with adult-onset idiopathic hypogonadotrophic hypogonadism, or AIHH, with concomitant plasma glucose and lipid elevations, all of which are components of Metabolic Syndrome.

We believe Androxal® may have advantages over current therapies for the treatment of low testosterone due to secondary hypogonadism because it is designed as an oral therapy that acts centrally to restore testicular function and hence normal testosterone in the body, as compared to currently approved products that simply replace diminished testosterone either through injections, nasal spray or the application of a gel or cream containing testosterone over a percentage of body area.

Proellex® (female reproductive health):

On June 10, 2010, the Food and Drug Administration (FDA) notified Repros that the full clinical hold for the Company's Proellex Investigational New drug Applications (INDs) was lifted to partial clinical hold status. The Company will be allowed to run a single study under the new partial clinical hold status. The new low dose study is designed to explore both safety and signals of efficacy in an escalating dose fashion.

Last edited by Michael Scally MD; 08-13-2011 at 09:57 AM.
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Old 05-10-2012, 07:55 AM
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Default Re: Repros Therapeutics Inc. (Public, NASDAQ:RPRX)

FDA and Repros Reach Agreement for Androxal(R) Registration Program
FDA and Repros Reach Agreement for Androxal(R) Registration Program - Yahoo! Finance
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Old 03-27-2013, 01:01 PM
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Default Re: Repros Therapeutics Inc. (Public, NASDAQ:RPRX)

It should be noted the COI of the corresponding author. RD Wiehle is a RPRX employee (one of about 6) who undoubtedly contributed only to the writing of the article, no more. Further, the very selective data used for the report. In fact, this attempt at selective use of data led to RPRX problems in their current clinical site studies. RPRX asked but was denied by the FDA to exclude data on sperm counts, which were consistent with published data on topical testosterone. RPRX selected use of data on sperm counts is important since this is the endpoint needed for FDA Approval, NOT serum testosterone.

Kaminetsky J, Werner M, Fontenot G, Wiehle RD. Oral Enclomiphene Citrate Stimulates the Endogenous Production of Testosterone and Sperm Counts in Men with Low Testosterone: Comparison with Testosterone Gel. The Journal of Sexual Medicine. Oral Enclomiphene Citrate Stimulates the Endogenous Production of Testosterone and Sperm Counts in Men with Low Testosterone: Comparison with Testosterone Gel - Kaminetsky - 2013 - The Journal of Sexual Medicine - Wiley Online Library

Introduction - Clomiphene citrate is employed off-label in men who have low testosterone and for the restoration of sperm counts in men who have used exogenous testosterone. Clomiphene is a mixture of two diastereoisomers: zuclomiphene and enclomiphene. We evaluated enclomiphene citrate in men with secondary hypogonadism.

Aim - Our aim was to compare oral enclomiphene citrate as an alternative to topical testosterone.

Main Outcome Measures - Blood levels of total testosterone (TT), estradiol, follicle-stimulating hormone (FSH), luteinizing hormone (LH), sex hormone binding globulin, thyroid stimulation hormone, prolactin, and insulin-like growth factor 1 IGF-1 were measured at certain times after treatment with each agent. Sperm parameters were determined at the same visits. Free testosterone (FT) was calculated.

Methods - This was a proof-of-principle, randomized, open-label, fixed dose, active-control, two-center phase IIB study in 12 men with secondary hypogonadism treated previously with topical testosterone.

Results - After discontinuation of topical testosterone, morning TT values averaged 165 ± 66 pg/dL. After 3 months, there was a significant rise in men receiving enclomiphene citrate and gel that was sustained for 3 months. At 6 months, TT levels were 545 ± 268 and 525 ± 256 pg/dL for groups receiving the gel and enclomiphene citrate, respectively. Only men in the enclomiphene citrate group demonstrated increased LH and FSH. TT decreased one month posttreatment to pretreatment values. Enclomiphene citrate elevated sperm counts in seven out of seven men at 3 months and six out of six men at 6 months with sperm concentrations in the 75–334 × 106/mL range. The gel was ineffective in raising sperm counts above 20 × 106/mL for all five men at 3 months and raised counts in only two or five men at 6 months. At follow-up, only enclomiphene citrate treatment was associated with elevated sperm counts.

Conclusions - Enclomiphene citrate increased testosterone and sperm counts. Concomitant changes in LH and FSH suggest normalization of endogenous testosterone production and restoration of sperm counts through the hypothalamic–pituitary–testicular axis.


Note: Corresponding Author: Ronald D. Wiehle, PhD, Repros Therapeutics, 2408 Timberloch Place, B-7, The Woodlands, TX 77380, USA. Tel: 281-719-3406; Fax: 281-719-3446; E-mail:
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Old 03-28-2013, 08:40 AM
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Repros Reports Both Primary Endpoints Successfully Met in First Pivotal Study of Androxal® Repros Therapeutics - Repros in the News
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Old 03-28-2013, 12:28 PM
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Repros CEO: My Testosterone Drug Helped Gay Cubans Have Lots of Sex
Repros CEO: My Testosterone Drug Helped Gay Cubans Have Lots of Sex - TheStreet
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Old 04-08-2013, 02:22 PM
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Old 05-07-2013, 05:57 PM
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Evaluation Of Enclomiphene And Testosterone Gel On Testosterone, Pituitary Hormones And Sperm Function [Abstract: LBA8]
http://www.aua2013.org/abstracts/arc...s.cfm?id=98768

Introduction and Objectives - Enclomiphene, the trans diastereoisomer of clomifene, is a selective oestrogen receptor modulator (SERM) in the pituitary. Blocking the negative oestrogenic feedback results in increased luteinising hormone (LH) levels which then stimulate production of endogenous T. Exogenous T has been shown to reduce spermatogenesis which could be counterproductive in men wishing to preserve fertility. This study compares the impact of enclomiphene with one T gel on certain aspects of endocrine function and spermatogenesis.

Methods - A double-blind, placebo and active control study of two doses of enclomiphene (12.5 and 25 mg) with open-label on-demand T gel in 120 patients with secondary hypogonadism over a 3-month period. Men were 21-65 years and had not received exogenous T within the previous 6 months.

Results - All three active groups exhibited statistically significant increases (ng/dl) from baseline in T compared to placebo (Enclomiphene 12.5 mg 217-472; 25 mg 210 406: T gel 210-463: Placebo 214-199). Enclomiphene at both doses increased LH and follicle stimulating hormone (FSH) levels (mIU/ml) beyond baseline and placebo whereas T gel resulted in a >50% reduction in both pituitary hormones (LH Enclomiphene 12.5 mg 4.4-8.9; 25 mg 5.3-11.7: T gel 3.9-1.4: Placebo 3.9-3.7: FSH Enclomiphene 12.5 mg 6.4-11.5; 25 mg 9.4-14.1: T gel 6.0-2.9: Placebo 6.1-5.4). At baseline, the majority of men in all groups exhibited sperm concentrations above the World Health Organization (WHO) limit of normal (15 million sperm per ml of semen). This was maintained in the enclomiphene groups and the placebo group. However, in 13 out of 23 men in the T gel group the sperm concentration dropped below normal.

Conclusions - Enclomiphene acts at the level of the pituitary as a selective oestrogen receptor modulator to block the negative feedback of oestrogen on the pituitary hormones (LH and FSH). The present study shows that restoration of LH (secondary hypogonadal males having low levels) provides rapid and effective normalisation of T levels with no excursion into the supra-normal range. In addition, preservation of FSH levels in enclomiphene-treated patients ensures that there is no negative impact on sperm function. In contrast, the suppression of sperm function in the T gel group is likely to be a consequence of the observed reduction in FSH. Overall, this study shows that enclomiphene may provide effective therapy in men with secondary hypogonadism, particularly in those wishing to preserve fertility.
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Old 05-14-2013, 05:14 PM
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Default Re: Repros Therapeutics Inc. (Public, NASDAQ:RPRX)

Repros Patent Problems Began When Harry Met Joe
Repros Patent Problems Began When Harry Met Joe - TheStreet

By Adam Feuerstein - 05/09/13 - 8:00 AM EDT

Tickers in this article: RPRX

THE WOODLANDS, Tex. (TheStreet) -- Investors who have read through Repros Therapeutics' regulatory filings know about the unresolved and worrisome patent conflict involving the company's testosterone-boosting pill Androxal. Less known but more interesting are the events behind this patent fight, including allegations that Repros' CEO stole the idea for Androxal from a New York fertility doctor.

Call the story, "When Harry Met Joe." Except there's no fake orgasm over pastrami sandwiches at Katz's.

Harry is Dr. Harry Fisch, a New York urologist and fertility specialist. For male patients with low testosterone, particularly those who still want to have kids, Fisch has long prescribed clomiphene, a decades-old hormone treatment normally used to boost fertility in women. In men, clomiphene raises testosterone but also preserves sperm count.

In 2001, Fisch filed, and was granted, a U.S. patent covering the use of clomiphene to treat androgen testosterone deficiency in men.

Joe is, of course, Joe Podolski, the CEO of Repros. Back in 2001, Repros, then known as Zonagen, had run into trouble following the failure of an erectile dysfunction drug. With his largest shareholders considering a liquidation of the company, Podolski went in search of a new drug development project that might persuade investors to keep the company afloat.

At the same time, Fisch was looking for a company to develop and commercialize the idea of using clomiphene to treat men with "low T" based on his recently awarded U.S. patent. He knew Podolski and was aware of Zonagen's problems, so Fisch called Podolski and proposed a meeting in New York City to discuss a possible business idea. Before delving into the details, Fisch asked Podolski to sign a confidentiality agreement. Podolski agreed, signed the confidentiality agreement and traveled from his home in Texas to New York City to meet Fisch.

Fisch and Podolski met in New York, with Fisch sharing his clomiphene "low T" patent with Podolski and explaining his desire to partner with someone to turn the idea into a business.

In separate interviews, neither Podolski nor Fisch dispute the version of events up to this point in 2001. In particular, Podolski admits to signing Fisch's confidentiality agreement and gaining access to Fisch's patent. But here's where their stories diverge and the conflict begins.

According to Fisch, the meeting with Podolski didn't really go anywhere. "Joe told me he wasn't interested in the program," says Fisch. The two men parted ways.

"I thought more about starting a company to commercialize my concept, but I gave up. I'm not a biopharma expert and didn't think I was qualified to be a biotech CEO. Plus, I had a full-time job already," says Fisch.

Podolski remembers the meeting with Fisch differently. He liked the idea of using an oral drug like clomiphene to raise testosterone levels in men without reducing sperm counts, but Fisch's patent was weak, he says.

"I did a quick literature search and literally found 30 or 40 published pieces of prior art which made Harry's clomiphene patent un-enforceable... I told Harry his idea was not patentable," Podolski says. "But if you could isolate an isomer of clomiphene, you might have a better treatment. That would be interesting."

And that's what Podolksi, working with some consultants, set out to do. The result was Androxal, which is an isomer of clomiphene. The two drugs have the same molecular makeup but Androxal's chemical structure was changed slightly to improve its function. Just as importantly, Podolski believed Androxal, unlike clomiphene, could be patented for the treatment of low testosterone in men.

Podolski filed a patent for Androxal in July 2002, just over a year after Fisch's clomiphene patent was filed in October 2001. In that same year, Zonagen (now known as Repros) began clinical trials with Androxal.

And then the "When Harry Met Joe" story turns ugly.

"He stole my idea," says Fisch of Podolski, adding that Androxal only came into existence because Podolski violated his confidentiality agreement.

"I didn't steal anything from Harry," answers Podolski. Yes, the idea for Androxal may have germinated with the Fisch meeting in New York City, Podolski adds, but Fisch's confidentiality agreement was null and void because the information it contained was already in the public domain.

That Zonagen (now Repros) has now pushed Androxal into phase III studies and intends to seek U.S. approval next year, while Fisch has taken no steps to develop his clomiphene idea into a viable business further supports his case, says Podolski.

"If my patent is nothing to worry about, then why has Repros asked the U.S. patent office to re-examine my patent twice and lost both times," Fisch asks. "And why does Repros warn investors in its SEC filings that the company is potentially in violation of my patent?"

Fisch's clomiphene patent has withstood two challenges, including an appeal before a federal judge. But Wall Street has generally sided with Repros in the ongoing patent dispute, believing the company will eventually reach a financial settlement with Fisch. The doctor will be paid and he'll go away, is the operating assumption made by many investors.

"They're wrong," says Fisch. "They figured I wouldn't last this long, but this is personal for me. I plan on winning in the way I want to win and that will include an apology."

"Harry is going to sue us. I guarantee that, but our lawyers believe we have freedom to operate with our patent," says Podolski.

"I don't care what he believes," says Fisch of Podolski. "We're not talking theology here."

And what is Fisch's next step? He won't say exactly but he did offer a clue.

"Joe wouldn't have come up with the idea for Androxal without having met me... He has a very weak patent. There's a 90% likelihood that the Repros patent will be challenged and will not survive. My patent, however, will survive."
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