Audentes Therapeutics sold for $3 billion

Astellas to acquire Audentes for $60 per share in cash

Astellas Pharma (ALPMY) and Audentes Therapeutics (BOLD) announced that they have entered into a definitive agreement for Astellas to acquire Audentes at a price of $60.00 per share in cash, representing a total equity value of approximately $3B.

Under the agreement, which has been unanimously approved by the boards of directors of both Astellas and Audentes, Astellas will acquire Audentes through Asilomar Acquisition Corp., a wholly-owned subsidiary of Astellas US Holding, Inc.

Gene Therapy pays off nicely for Audentes Therapeutics, Stockwinners

Asilomar will commence a tender offer for all outstanding shares of common stock of Audentes, for a price of $60.00 per share in cash.

Promptly upon successful completion of the Tender Offer, Asilomar will be merged into Audentes, and any remaining shares of common stock of Audentes will be canceled and converted into the right to receive the same $60.00 per share price.

Astellas pays $3 billion for Audentes Therapeutics, Stockwinners

The board of directors of Audentes has resolved to recommend that Audentes stockholders tender their shares to Astellas. Consummation of the transaction is subject to customary closing conditions, including US antitrust clearance and the tender of a majority of Audentes’ outstanding shares of common stock.

The offer price represents a premium of 110% to Audentes’ closing share price of $28.61 on December 2, 2019.

The all-cash transaction is valued at approximately $3B including the purchase of all common shares, options, restricted stock units and other securities.

The Tender Offer period is expected to commence in the next few weeks and to expire 20 business days after its commencement, unless otherwise extended.

If the Tender Offer conditions are not satisfied, Astellas may be required to extend the Tender Offer under certain circumstances. Astellas is still reviewing the impact of a consummation of the transaction on its financial results for the fiscal year ending March 31, 2020.

Audentes Therapeutics, Inc. focuses on developing and commercializing gene therapy products for patients living with serious, life-threatening rare diseases caused by single gene defects.

The company is developing AT132, which is in Phase I/II clinical studies for the treatment of X-linked myotubular myopathy (XLMTM); AT342 that is in Phase I/II clinical studies to treat crigler-najjar syndrome; AT845, which is in preclinical studies for the treatment of pompe disease; and AT307 to treat CASQ2 subtype of catecholaminergic polymorphic ventricular tachycardia. 

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Shares of Aravive soar on its ovarian cancer drug

Aravive reports data from ongoing Phase 1b portion of AVB-500 trial

Aravive (ARAV) announced new data from the ongoing Phase 1b portion of the Phase 1b/2 clinical trial of AVB-500 in platinum-resistant recurrent ovarian cancer patients.

Ovarian cancer data sends shares sharply higher, Stockwinners

The data from the first 31 patients treated at the 10 mg/kg dose are maturing and affirm earlier findings on the relationship between AVB-500 levels and anti-tumor response.

In this data analysis, high serum drug levels of AVB-500 were strongly predictive of anti-tumor activity with statistically significant correlation to progression-free survival.

PFS is the primary endpoint for platinum-resistant ovarian cancer clinical trials.

At the 10 mg/kg dose, patients that met or exceeded the minimal efficacious concentration of AVB-500 demonstrated a greater than four-fold increase in median PFS over those with low exposure and approximately two-fold improvement in overall response rate, including one complete response.

How AVB-500 works, Stockwinners

Patients who achieved sufficient AVB-500 exposure also showed improvements in duration of response and clinical benefit rate, with reduced chance of progressing by 3.2-fold.

The open-label, Phase 1b portion of the Phase 1b/2 clinical trial of AVB-500 enrolled patients with platinum-resistant recurrent ovarian cancer in two cohorts, one investigating a combination of AVB-500 with pegylated liposomal doxorubicin and the other a combination with paclitaxel.

All patients were treated with 10mg/kg AVB-500 every other week.

The company previously reported drug exposure-response relationship among the initial patients receiving 10 mg/kg.

The study identified a minimal efficacious concentration that is consistent with at least 95% target engagement based on independent pharmacokinetic modeling.

At the 10 mg/kg dose, 17 of 31 patients in the study achieved the minimal efficacious concentration after the first dose of AVB-500. The baseline characteristics, demographics and safety parameters were comparable between patients who achieved the minimal efficacious concentration and those who fell below that threshold.

The analysis shows that the clinical benefit at this dose level in the study can be primarily attributed to AVB-500 exposure.

Other notable findings: The patient with CR that is pending confirmation achieved the MEC of AVB-500 and was on paclitaxel. She had a baseline serum GAS6 level typical of the platinum-resistant ovarian cancer population and two-fold higher than that observed in healthy volunteers. She also exhibited poor prognostic factors, including two prior lines of therapy and platinum-free interval of less than three months.

Among the patients who responded to AVB-500, four of seven remain responders and continue on study, and two patients remain on AVB-500 as a single agent.

All four patients achieved the minimal efficacious AVB-500 concentration. Among the 13 patients whose best response was SD, four achieved the MEC of AVB-500 and remain on study. One SD patient, whose trough level was below the minimal efficacious concentration, did not progress but withdrew consent.

Because the study is still ongoing and includes only patients above the MEC, duration of response and PFS may continue to evolve.

These data confirm the company’s strategy to investigate higher doses in the current Phase 1b study, to determine if a greater proportion of patients can exceed the MEC.

According to our modeling, a dose of 20 mg/kg should allow greater than 90% of the patients to achieve the MEC.

It is anticipated 6 to 12 patients will be treated with 15mg/kg and an additional 12 patients will be treated with 20mg/kg.

An independent safety monitoring group will review data from the 15mg/kg group prior to escalation to the 20 mg/kg dose.

AVB-500 continues to be well-tolerated and there have been no serious and unexpected adverse reactions or dose-limiting toxicities to date.

ARAV closed at $6.51, last traded at $17.20.

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Incyte to present at ASCO meeting in Chicago

Incyte announces abstracts featuring genomic profiling data for ASCO

Incyte Corp. (INCY) announces that multiple abstracts highlighting data from its oncology portfolio will be presented at the upcoming 2019 American Society of Clinical Oncology Annual Meeting, to be held from May 31-June 4, in Chicago, Illinois; and the 24th Congress of the European Hematology Association, to be held June 13-16, in Amsterdam, the Netherlands.

Abstracts accepted for presentation at ASCO feature genomic profiling data from Incyte’s ongoing Phase 2 FIGHT-202 trial evaluating its selective fibroblast growth factor receptor inhibitor, pemigatinib, in patients with cholangiocarcinoma, as well as efficacy and safety data from the Novartis-sponsored GEOMETRY mono-1 trial of capmatinib, the investigational selective MET inhibitor licensed to Novartis (NVS) by Incyte.

Additionally, data to be presented at EHA will showcase the continued study of Incyte’s JAK1/JAK2 inhibitor, #ruxolitinib, in myeloproliferative neoplasms.

“Our presence at ASCO and EHA illustrates Incyte’s ongoing commitment to discovering and developing therapeutic options that address significant unmet medical needs for patients,” said Steven Stein, M.D., Chief Medical Officer, Incyte.

ASCO’s annual meeting is May 31-June 4 in Chicago, Stockwinners

“We are pleased to highlight new data on two investigational medicines – pemigatinib and capmatinib – that were discovered by Incyte scientists and for which we anticipate applications for initial U.S. regulatory approvals later this year, as well as data that furthers our understanding of the treatment of MPNs.”

Incyte Corporation focuses on the discovery, development, and commercialization of various therapeutics in the United States. The company offers JAKAFI, a drug for the treatment of myelofibrosis and polycythemia vera cancers; and Iclusig, a kinase inhibitor to treat chronic myeloid leukemia and philadelphia-chromosome positive acute lymphoblastic leukemia.

Its clinical stage products include ruxolitinib, a drug in Phase III clinical trial for steroid-refractory acute graft-versus-host-diseases (GVHD); and Phase II trial for the treatment of essential thrombocythemia and refractory myelofibrosis.

In addition, the company engages in the development of itacitinib, which is in Phase III clinical trial to treat naïve acute and chronic GVHD, as well as Phase I/II clinical trial in combination with osimertinib for non-small cell lung cancer (NSCLC); and pemigatinib that is in Phase II clinical trial for treating bladder cancer, cholangiocarcinoma, and 8p11 myeloproliferative syndrome, as well as a pivotal program for solid tumors with driver activations of FGF/FGFR.

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Dare Bioscience posts positive data, shares jump

Dare Bioscience announces publication of clinical findings for DARE-VVA1

Dare Bioscience publishes positive data on tamoxifen, Stockwinners

Dare Bioscience (DARE) announced the publication of clinical findings for vaginally-administered tamoxifen in Clinical and Experimental Obstetrics and Gynecology, an international journal for publication of research focused on the development of new therapeutic interventions for obstetrics and gynecology.

Dare’s product candidate, DARE-VVA1, incorporates tamoxifen in a proprietary formulation designed for vaginal delivery.

Dare holds the exclusive worldwide rights to patents issued in the U.S. and Japan covering the use and delivery of DARE-VVA1 for vulvar and vaginal atrophy, or VVA, and a U.S. patent covering composition, use and delivery of DARE-VVA1 for VVA.

The publication reported that a self-administered vaginal suppository containing tamoxifen, dosed daily for one week followed by twice weekly for three months, administered to four healthy postmenopausal women with VVA showed significant improvements in reducing vaginal pH and vaginal dryness without significant systemic absorption of tamoxifen.

This exploratory study demonstrated that tamoxifen was effective when delivered intravaginally for three months in postmenopausal women suffering with VVA.

The median vaginal pH at the time of enrollment was 7.1. At the end of month 3, the median vaginal pH was 5.0. The median paired difference between baseline and month 3 was -2.0, with a range of -2.5 to -1.5.

The self-assessment of vaginal dryness improved between baseline and month 3. Vaginal dryness was rated using a visual analogue scale, or VAS, that ranged from 0 to 10.


Tamoxifen commonly is used as a breast cancer treatment

At baseline, the median vaginal dryness rating was 8.0, with a range of 7.5 to 9.0. At the end of month 3, the median vaginal dryness rating was 3.0, with a range of 2.0 to 3.0. The median change between baseline and month 3 was -5.5.

In addition, systemic exposure was at least an order of magnitude lower following vaginal administration compared with oral tamoxifen. After eight weeks of study treatment, median plasma concentration of tamoxifen was 5.8 ng/ml, with a range of 1.0 to 10.0 ng/ml.

In comparison, after three months of oral administration of 20-mg tamoxifen once daily, the average steady state plasma concentration of tamoxifen is 122 ng/ml, with a range of 71 to 183 ng/ml. VVA is an inflammation of the vaginal epithelium due to the reduction in levels of circulating estrogen. Historically, estrogen-based therapies delivered through creams, rings and tablet supplements have been prescribed for the treatment of VVA symptoms.

However, estrogen-based products can be worrisome for women undergoing treatment for hormone-receptor positive breast cancer and are often contraindicated in such breast cancer patients and in patients with a genetic predisposition or history of familial disease, because of the concern that estrogen use will promote recurrence of disease.

Many breast cancer survivors undergo menopausal symptoms as a direct consequence of cancer treatment.

Breast cancer patients treated with aromatase inhibitors refer to VVA as one of the most unpleasant side effects of treatment. Tamoxifen has been a commonly used treatment for breast cancer and is systemically metabolized to active metabolite 4-hydroxy-N-desmethyl-tamoxifen, otherwise known as endoxifen. In breast tissue, tamoxifen acts as an estrogen antagonist.

In other tissue, including vaginal tissue, tamoxifen has been reported to exert an estrogen-like response on vaginal cytology by a mechanism yet to be understood and not expected based upon its an anti-estrogen activity.

This exploratory study demonstrated that vaginal administration of tamoxifen for three months in postmenopausal women with VVA is a possible new, non-estrogen-based treatment approach.

Dare is currently conducting activities in preparation for future clinical work with DARE-VVA1, its proprietary vaginal formulation of tamoxifen.

If successful, DARE-VVA1 could be the first and only vaginally administered tamoxifen product approved by the FDA for the treatment of VVA in hormone-receptor positive breast cancer patients.

DARE closed at $0.90, last traded at $2.70.

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