Biolex presents positive tolerability data of Locteron vs Peg-Intron at AASLD...

Market Wire - Nov. 01, 2010

PITTSBORO, NC -- (MARKET WIRE) -- 11/01/10 -- Biolex Therapeutics, Inc. today announced positive results from two Phase 2b trials further demonstrating the strong anti-viral response and tolerability advantages of the 480 µg dose of Locteron® in the treatment of hepatitis C. In the Phase 2b trials, patients directly reported flu-like adverse events on a daily basis through an electronic patient-reported outcome (ePRO) system, and the results demonstrated a statistically significant reduction in the frequency and severity of flu-like adverse events and reduced use of concomitant (analgesic/antipyretic) medications for patients treated with Locteron compared to patients treated with the PEG-Intron® control. Locteron, controlled-release interferon alpha 2b, is designed to offer key advantages compared to currently marketed interferons as a core component of combination therapies for the treatment of hepatitis C. These advantages include reduced flu-like symptoms, reduced rates of depression, and a less frequent dosing regimen with half the number of injections. The "EMPOWER" Phase 2b ePRO results will be presented today in a late-breaker session at the 61st Annual Meeting of the American Association for the Study of Liver Diseases (AASLD) in Boston.

EMPOWER is a prospectively designed analysis of the combined results from two Phase 2b hepatitis C trials focusing on the 480 µg dose of Locteron (the middle dose of three Locteron doses evaluated in the two trials). Through 12 weeks of treatment, 50% of the patients in the Locteron 480 µg group achieved cEVR (undetectable HCV RNA) compared to 46% of the patients in the PEG-Intron group. As a result of its controlled-release mechanism, Locteron achieved strong efficacy results while being dosed half as frequently as PEG-Intron.

The AASLD presentation today includes for the first time results from the ePRO adverse-event reporting system where patients directly recorded their flu-like adverse events on a daily basis, providing greater insight into the patients' real world experiences with these side effects and the impact on their daily activities. In addition to the self-reporting by patients with the ePRO system, flu-like adverse events were also recorded using traditional weekly adverse event assessments performed by the clinical sites. Flu-like adverse events were predefined to include arthralgia, chills, fever, headache, and myalgia.

A substantial reduction in flu-like adverse events for patients treated with Locteron compared to PEG-Intron was evident even in the first week after initiation of treatment and continued through the 12-week time point through which the ePRO system was utilized. The reduction in flu-like adverse events during the week after the first injection supports the hypothesis that the slower rise to Cmax provided by the controlled-release mechanism of Locteron contributes to the tolerability advantages seen in multiple clinical trials. A comparison of the flu-like adverse event reporting by the clinical sites and by ePRO provide independent confirmation of the substantial benefits Locteron provided in reducing these side effects as outlined in the table below:


Locteron Reduction in Flu-Like Adverse Events (Week 1)
---------------------------------------------------------
Total Events Moderate and Severe Events
---------------------------- ----------------------------
Clinical Site Patient (ePRO) Clinical Site Patient (ePRO)
Reporting Self-Reporting Reporting Self-Reporting
------------- -------------- ------------- --------------

Locteron Reduction 50% 51% 70% 39%
In Flu-Like Adverse Reduction Reduction Reduction Reduction
Events Compared to
PEG-Intron

"The ePRO results being presented for the first time today are robust and provide important insight into the impact that flu-like adverse events have on patients' daily lives," said Patrick Marcellin, MD, PhD, Professor of Hepatology at the University of Paris and Head of the Viral Hepatitis Research Unit in Hôpital Beaujon, Clichy. "Treatment of hepatitis C is likely to progress to triple and quad therapies in which interferons are combined with one or more direct-acting anti-viral drugs. Locteron's advantages with regards to flu-like adverse events, depression and dosing frequency have the potential to enhance the overall tolerability of, and patient adherence to, these future combinations."

Consistent with the reduction in flu-like adverse events, less than half as many Locteron patients used concomitant medications (analgesics and antipyretics) compared to the usage of these medications by PEG-Intron patients during the study period as detailed below.


Percentage of Patients Using
Concomitant Medications
-----------------------------------------
Locteron
480 µg PEG-Intron
-------------------- --------------------

Patients Using Analgesics 27% 59%
Patients Using Antipyretics 23% 49%

A comparison of the ePRO and clinic site reporting highlights the fact that flu-like adverse events may even be more important to patients than historically believed. The total flu-like adverse events reported directly by the patients using the ePRO system during the first 12 weeks of EMPOWER was more than four times greater than the total flu-like adverse events recorded by the clinical sites. Also of importance, patients rated 80% of their flu-like adverse events as moderate or severe in their ePRO reports, compared to the clinical site reporting in which only 13% of flu-like adverse events were rated as moderate or severe. Despite the apparent differences in sensitivity in the two adverse event reporting methods, the results from both the ePRO and weekly clinic visits independently confirm the reduction in flu-like adverse events for patients treated with Locteron compared to patients treated with PEG-Intron. Through the 12-weeks, the difference in flu-like adverse event counts was statistically significant when measured by both the ePRO and clinical site reporting methods (p < 0.001 for each).

The relevance of flu-like adverse events was highlighted in a survey of hepatitis C patients published in the Journal of Viral Hepatitis in June 2010 in which depression and flu-like symptoms were cited as the two most important adverse events impacting patient adherence to treatment. Last week Biolex reported 48-week results from its SELECT-2 Phase 2b trial of Locteron demonstrating substantial reductions in depression compared to PEG-Intron.

AASLD Presentation
The EMPOWER ePRO and clinical-site tolerability results will be presented today by the lead author, Walker Long, MD, Chief Medical Officer and Vice President, Drug Development, Biolex Therapeutics, in the form of a poster titled "Adverse Event Reporting During HCV Treatment Via Weekly Clinic Visits Substantially Underestimates Flu Frequency & Severity Compared to Daily ePRO: Results From 133 Patients in EMPOWER."

"The EMPOWER results are notable in that they show a statistically significant reduction of flu-like adverse events for Locteron confirmed by two sources, the clinical site assessments and the daily patient reporting of side effects through the ePRO System. The reductions in the percent of patients using analgesics and in overall analgesic use observed in the Locteron group provide additional support for improved tolerability on Locteron," said Dr. Long. "These results complement the positive results released last week from our SELECT-2 Phase 2b trial in which we showed statistically significant reductions in flu-like adverse events for three different Locteron doses, and substantial reductions in depression for the Locteron 480 and 320 µg doses."

About EMPOWER Study
The objective of the EMPOWER study was to test the hypothesis that the 480 µg dose of Locteron dosed once every two weeks reduces flu-like symptoms but retains equivalent efficacy compared to PEG-Intron (1.5 µg/kg, administered every week). The 133 patients in the EMPOWER study were enrolled in two contributing Phase 2b trials:

* SELECT-2, a Phase 2b dose-finding trial evaluating the 320, 480 or 640 µg doses of Locteron versus PEG-Intron.
* The 480 STUDY, a Phase 2b trial evaluating the 480 µg dose of Locteron versus PEG-Intron.

All patients in both trials were treatment-naïve-genotype-1 subjects with chronic hepatitis C, and all patients were also treated with weight-based ribavirin. A total of 30 sites participated in the two trials (14 sites in the US, 11 in Europe, and five in Israel).

Locteron Overview
Locteron, controlled-release interferon alpha 2b, is designed to offer key advantages compared to currently approved products, including reduced flu-like symptoms and rates of depression, and cutting in half the number of injections required. In contrast to Locteron, the currently approved products, Pegasys® and PEG-Intron, are immediate-release products that lack a controlled-release mechanism. The two-drug combination of interferon alpha and ribavirin serves as the current standard of care for the treatment of hepatitis C. The launch of the first direct-acting anti-viral (DAA) product, projected for 2011, will transform treatment of genotype-1 patients to a triple-drug therapy (interferon plus ribavirin plus DAA) and substantially raise cure rates. Other recent triple or quad drug combinations with interferon (including interferon plus ribavirin plus two DAA agents) have shown promise in early clinical testing, further solidifying the continued role of interferon in the treatment of hepatitis C. It is estimated that worldwide sales of interferon products for the treatment of hepatitis C will approach $6 billion by 2016.

Locteron incorporates an advanced controlled-release drug delivery technology that allows dosing once every two weeks, more convenient than Pegasys and PEG-Intron, each of which require dosing every week. More importantly, Locteron's controlled-release mechanism results in the gradual release of interferon alpha 2b to patients over the duration of two weeks and avoids the early peak plasma levels of the active interferon that characterize the pegylated interferons. This controlled-release mechanism is designed to reduce the frequency and severity of flu-like symptoms and depression commonly experienced by patients treated with pegylated interferons.

Locteron is an investigational therapeutic candidate and has not been approved for sale by the United States Food and Drug Administration or by any international regulatory agency.

Kadmon and Valeant ink global deal on ribavirn and taribavirin....

Valeant Pharmaceuticals and Kadmon Pharmaceuticals inked two separate agreements, worth a combined $12.5 million up front, covering the development and/or marketing of the hepatitis C drug ribavirin and the clinical-stage ribavirin prodrug candidate taribavirin. The deals come within a few days of Kadmon buying out Three Rivers Pharmaceuticals, which already markets the hepatitis C drugs Infergen™ (consensus interferon), Ribasphere® (ribavirin, USP), and RibaPak® (ribavirin).

The first new deal gives Kadmon an exclusive, worldwide license (excluding Japan) to taribavirin, which has successfully completed a Phase IIb trial for the treatment of chronic hepatitis C. Under terms of this agreement Kadmon will pay Valeant $5 million up front in addition to development milestones and future sales royalties.

The second agreement gives Valeant exclusive rights to all Kadmon dosage forms of ribavirin, including its 200 mg, 400 mg, and 600 mg capsules and tablets, in Poland, Hungary, the Czech Republic, Slovakia, Romania, and Bulgaria. Valeant paid Kadmon $7.5 million for the ribavirin portfolio and will source the products from Kadmon.

At first glance the combination of these two deals may seem counterintuitive. Valeant is passing further development of its ribavirin prodrug candidate virtually worldwide to Kadmon but is instead taking on rights to a marketed ribavirin portfolio in central Europe. However, as Valeant’s CEO, J. Michael Pearson, points out, while further development of taribavirin in house was halted in 2009 until a partner could be found, the firm wants to keep its hand in the branded generics market for hepatitis C drugs in some territories. “While participating in product development in the overall hepatitis C market no longer fits within our corporate development strategy, ribavirin could be a significant product for our branded generics portfolio in Central Europe.”

Kadmon, meanwhile, is making a more obvious push into the hepatitis C market globally, both through its deal with Valeant and with its recent acquisition of Three Rivers. “Kadmon is building upon its commercial platform in hepatitis C through expanded global distribution and the addition of complementary products,” notes Samuel D. Kalsal, CEO. “Our agreements with Valeant achieve milestones for both of these objectives. Taribavirin completes our ribavirin franchise and will ensure its future sustainability and growth. We have also expanded our global distribution network for ribavirin into markets in which Valeant is a leading provider.”

Pharmasset releases Phase 1 data on HCV nucleotide inhibitor PSI-938

Reports Positive Preliminary Antiviral Data with PSI-938 for the Treatment of Hepatitis C 
10/28/2010

PRINCETON, N.J., Oct. 28 /PRNewswire-FirstCall/ -- Pharmasset, Inc. (Nasdaq: VRUS) reported positive preliminary results today from its phase I monotherapy trial of PSI-352938 ("PSI-938") for the treatment of chronic hepatitis C (HCV). PSI-938 is a guanosine nucleotide analog polymerase inhibitor in development for the treatment of chronic HCV infection.

PSI-938 Phase 1 Multiple Ascending Dose Study Overview

In August 2010, Pharmasset initiated a phase 1 multiple ascending dose study with PSI-938 administered once daily (QD) or twice daily (BID) for 7 days. The trial was conducted at two US centers as a blinded, randomized, and placebo-controlled study in 40 patients chronically infected with HCV genotype 1. The primary objective was to assess the safety, tolerability, and pharmacokinetics of PSI-938 administered over 7 days. The secondary objective was to assess antiviral activity by measuring the change in HCV RNA. Patients were randomized within each cohort to receive either PSI-938 (8 patients per cohort) or placebo (2 patients per cohort). Four dose cohorts of PSI-938 (100 mg QD, 200 mg QD, 300 mg QD and 100 mg BID) have been completed.

PSI-938 Antiviral Activity Summary

Preliminary Antiviral Response Observed Following PSI-938 Administered as Monotherapy for 7 Days
Dose	n	Median Change in HCV RNA at Day 8	Range	Number of Subjects with HCV RNA
		(log10 IU/mL)	(log10 IU/mL)
100 mg QD	8	-4.31	-2.66 to -5.12	1	3
200 mg QD	8	-4.64	-3.49 to -5.35	5	7
300 mg QD	8	-3.94	-3.43 to -5.29	4	4
100 mg BID	8	-4.59	-3.94 to -5.08	2	3
Placebo	8	-0.05	+0.17 to -0.29	0	0
LOD = limit of detection (<15 IU/mL) LOQ = limit of quantification (<43 IU/mL)

PSI-938 demonstrated potent antiviral activity with a mean HCV RNA change from baseline of 4.31 log10 IU/mL, 4.64 log10 IU/mL, 3.94 log10 IU/mL and 4.59 log10 IU/mL in patients receiving 100 mg QD, 200 mg QD, 300 mg QD and 100 mg BID for seven days, respectively. HCV RNA declined consistently throughout the 7-day dosing period, with no viral breakthrough. For the 16 subjects who received PSI-938 200 mg QD or 300 mg QD for 7 days, more than half (9 of 16) of the subjects on PSI-938 monotherapy achieved HCV RNA below the limit of detection (15 IU/mL) and 11 out of 16 patients achieved HCV RNA below the limit of quantification (43 IU/mL).

PSI-938 Pharmacokinetic and Safety Summary

Pharmacokinetics parameters were similar between healthy subjects in the single ascending dose study and HCV infected patients in the seven-day multiple ascending dose study. PSI-938 at all doses provided good systemic exposure and continue to support once-daily administration.

PSI-938 was generally safe and well tolerated across all doses studied to date with no serious adverse events and no discontinuations. There were no dose-related trends in adverse events through the dose escalations, no grade 4 treatment emergent laboratory changes, and no trends in clinical laboratory abnormalities.

PSI-938 SAD and preclinical data

The Phase 1a single ascending dose study conducted earlier this year assessed single doses of PSI-938 ranging from 100 mg to 1600 mg or matching placebo in healthy male and female volunteers. No dose-limiting toxicity was identified. Safety and pharmacokinetic data supported progression of PSI-938 to the 7-day monotherapy trial. Full data from the SAD trial will be presented at the upcoming AASLD Annual Liver Meeting in Boston, MA, October 29-November 3, 2010 (poster #1890).

Preclinically, both PSI-938 and Pharmasset's other guanosine analog, PSI-661, which is in late preclinical development, have demonstrated similar potency against wild-type HCV or HCV with the S282T mutation, which can be selected by RG7128 and PSI-7977 in vitro. Although the S282T has not been detected in treatment-naive individuals with HCV, nor selected in clinical trials with any of Pharmasset's nucleoside/tide analogs, the potential for interferon-sparing regimens may increase the focus on antivirals with complementary resistance profiles.

"We are very encouraged by the preliminary efficacy and safety data with PSI-938, our purine nucleotide analog for HCV," said Michelle Berrey, MD, MPH, Pharmasset's Chief Medical Officer. "These data provide the first confirmatory evidence that a nucleoside/tide analog can exhibit substantial early antiviral activity in monotherapy as has been observed with compounds in other DAA classes. Unlike other classes of DAAs to date, our nucleotide analogs also provide a higher barrier to resistance and clinically-validated antiviral activity across a broad range of HCV genotypes, characteristics not yet demonstrated with other classes of DAA. We continue to believe that nucleoside/tide analogs will become the backbone of HCV therapy. In addition, similar to HIV, the combination of two complementary nucleoside/tide analogs could provide a differentiated therapy for HCV patients in the future."

PSI-938 and PSI-7977 Combination Study

In this quarter, Pharmasset plans to initiate a short-term study to assess the combination of PSI-938 and PSI-7977. The trial will be conducted in the US, as a blinded, randomized, placebo-controlled study in approximately 50 patients chronically infected with HCV genotype 1. The primary objective will be to assess the safety, tolerability, and pharmacokinetics of PSI-938 and PSI-7977 alone and in combination. Preliminary results are expected in the first half of 2011.

Conference Call and Webcast

Members of Pharmasset's management team will host a conference call today, October 28, 2010, at 8:00 a.m. ET to discuss the preliminary results of the multiple ascending dose trial with PSI-938. Investors may listen to the webcast of the conference call live on the "Events & Presentations" section of Pharmasset's website, www.pharmasset.com. Alternatively, investors may listen to the call by dialing 877-771-7028 from locations in the U.S. and 973-200-3092 from outside the U.S. The webcast replay will be available for at least 72 hours following the call.

About Pharmasset

Pharmasset is a clinical-stage pharmaceutical company committed to discovering, developing, and commercializing novel drugs to treat viral infections. Pharmasset's primary focus is on the development of oral therapeutics for the treatment of hepatitis C virus (HCV). Our research and development efforts focus on nucleoside/tide analogs, a class of compounds which act as alternative substrates for the viral polymerase, thus inhibiting viral replication. We currently have four clinical-stage product candidates. RG7128, a cytosine nucleoside analog for chronic HCV infection, is in two Phase 2b clinical studies in combination with Pegasys(R) plus Copegus(R) and is also in the INFORM studies, the first series of studies designed to assess the potential of combinations of small molecules without Pegasys(R) and Copegus(R) to treat chronic HCV. These clinical studies are being conducted through a strategic collaboration with Roche. Our other clinical stage HCV candidates include PSI-7977, an unpartnered uracil nucleotide analog presently in a Phase 2b study, and PSI-938, an unpartnered guanosine nucleotide analog in Phase 1. We also have in our pipeline an additional purine nucleotide analog, PSI-661, in advanced preclinical development. Racivir, for the treatment of HIV, has completed a Phase 2 clinical study.

Pegasys® and Copegus® are registered trademarks of Roche.

Biolex announces Locteron SVR12 & safety/tolerability advantages in SELECT-2 trial..

Market Wire - Oct. 28, 2010

PITTSBORO, NC -- (MARKET WIRE) -- 10/28/10 -- Biolex Therapeutics, Inc. announced positive efficacy, safety and tolerability results from its 72-week SELECT-2 Phase 2b dose-finding Phase 2b trial of Locteron®, the Company's lead product candidate for the treatment of hepatitis C. For each of the three Locteron doses tested in SELECT-2, the percentage of patients who maintained undetectable levels of virus at week 60 of the trial, 12 weeks after completion of 48 weeks of treatment (SVR12), were comparable with or exceeded the response rate for the PEG-Intron® control. As a result of its controlled-release mechanism, Locteron was dosed half as frequently as PEG-Intron. PEG-Intron is one of two currently marketed pegylated interferon products for the treatment of hepatitis C, a market that currently exceeds $2.5 billion in worldwide sales. 

Additional results from SELECT-2 demonstrated the substantial tolerability advantages of Locteron. Patients treated with each of the three Locteron doses in SELECT-2 reported a statistically significant reduction in flu-like adverse events (p < 0.001) compared to the PEG-Intron group. Accordingly, Locteron patients in all three dose groups used less concomitant medications (analgesics and antipyretics) than the PEG-Intron patients during the study period. Lastly, patients receiving the two lower doses of Locteron experienced lower rates of depression and discontinuations due to adverse events than patients receiving PEG-Intron.

Response rates and tolerability results for SELECT-2 are outlined in the table below:

                     

"The strong viral response of Locteron achieved with once-every-two-week dosing is an improvement over current interferons, and I am impressed by the consistency of the flu-like effect across trials and different reporting methodologies," said Nezam Afdhal, M.D., Chief of Hepatology at Beth Deaconess Medical Center, Harvard Medical School. "The reduction in symptoms of depression is quite promising and needs to be followed up in additional clinical evaluation. The Locteron safety and tolerability results are clearly important as recent clinical results demonstrate that interferon is likely to remain a core component of future treatment regimens that incorporate the new direct-acting anti-virals, highlighting the need for a more tolerable interferon to reduce the side-effect burden on patients from these multi-drug combinations and maximize their adherence to treatment." 

SELECT-2 Depression Results
In SELECT-2, depression was measured in both patient-reported and clinic-reported methods and showed an advantage for Locteron for the dose groups encompassing the expected commercial dose range, the 320 and 480 µg doses. Throughout the 48 weeks of treatment in SELECT-2, patients self-reported their status using the Beck's Depression Inventory (BDI), one of the most widely used instruments for measuring the severity of depression. Results demonstrated that fewer patients reported scores greater than 16 using the BDI (the threshold for mild depression) in the 320 and 480 µg Locteron dose groups compared to the PEG-Intron group.

These findings from SELECT-2 are of particular importance as a survey of hepatitis C patients published in the Journal of Viral Hepatitis in 2010, showed that depression and flu-like symptoms were cited as the two most important adverse events impacting patient adherence to treatment. 

AASLD Presentation
Biolex also announced today that new tolerability data from two Phase 2b trials of Locteron have been accepted for a late-breaker presentation on November 1, 2010 at the 61st Annual Meeting of the American Association for the Study of Liver Diseases (AASLD) in Boston. These latest tolerability results include daily patient self-reporting of flu-like adverse events using an electronic patient reported outcome system (ePRO).

"We believe that the efficacy, safety and tolerability results from SELECT-2 support the profile of Locteron as the most combinable interferon for use with direct-acting anti-viral drugs in emerging combination regimens," said Mr. Jan Turek, Biolex's President and Chief Executive Officer. "We are pleased that the ePRO results, the newest data supporting the tolerability advantages of Locteron, have been accepted for presentation at the AASLD conference." 

Locteron is an investigational therapeutic candidate and has not been approved for sale by the United States Food and Drug Administration or by any international regulatory agency. 

About SELECT-2 Study
Biolex's SELECT-2 Phase 2b trial was designed to identify one or more doses of Locteron that demonstrated viral kinetics and response rates comparable to the PEG-Intron® control while also achieving at least a 50% reduction in flu-like adverse events. SELECT-2 is being conducted in the United States and Europe in 116 treatment-naïve, genotype-1, chronic hepatitis C patients. Patients were randomized into one of four dosing cohorts, the 320, 480 or 640 µg dose of Locteron (administered once every two weeks) or a control arm consisting of PEG-Intron (1.5 µg/kg, administered every week), with all patients receiving weight-based ribavirin. Patients were treated for 48 weeks and are being followed for an additional 24 weeks to determine the sustained virologic response (SVR) rate. All patients in the trial have reached at least the 60-week time point of the study, or 12 weeks of follow-up after completion of the scheduled 48 weeks treatment.

In SELECT-2, all adverse events were recorded during weekly clinic visits by the clinical site personnel. Flu-like adverse events were predefined to include arthralgia, chills, fever, headache, and myalgia. Under the statistical analysis plan for the trial, the reductions in flu-like adverse events were tested after four and 12 weeks of treatment and were statistically significant for all three Locteron doses (p < 0.001 at 12 weeks for each of the 320, 480 or 640 µg doses of Locteron). In addition to the weekly clinic reporting, flu-like adverse events were self reported daily by patients through an electronic patient reported outcome system (ePRO). The ePRO results will be reported at the upcoming AASLD meeting as detailed above. 

Locteron Overview
Locteron, controlled-release interferon alpha 2b, is designed to offer key advantages compared to currently approved products, including reduced flu-like symptoms and rates of depression, and cutting in half the number of injections required. In contrast to Locteron, the currently approved products, Pegasys® and PEG-Intron, are immediate-release products that lack a controlled-release mechanism. The two-drug combination of interferon alpha and ribavirin serves as the current standard of care for the treatment of hepatitis C. The launch of the first direct-acting anti-viral (DAA) product, projected for 2011, will transform treatment of genotype-1 patients to a triple-drug therapy (interferon plus ribavirin plus DAA) and substantially raise cure rates. Other recent triple or quad drug combinations (including interferon plus ribavirin plus two DAA agents) have shown promise in early clinical testing, further solidifying the continued role of interferon in the treatment of hepatitis C. It is estimated that worldwide sales of interferon products for the treatment of hepatitis C will approach $6 billion by 2016. 

Locteron incorporates an advanced controlled-release drug delivery technology that allows dosing once every two weeks, more convenient than Pegasys and PEG-Intron, each of which require dosing every week. More importantly, Locteron's controlled-release mechanism results in the gradual release of interferon alpha 2b to patients over the duration of two weeks and avoids the early peak plasma levels of the active interferon that characterize the pegylated interferons. This controlled-release mechanism is designed to reduce the frequency and severity of flu-like symptoms and depression commonly experienced by patients treated with pegylated interferons.

Vertex Pharmaceuticals - Telaprevir oral and poster presentations at AASLD 2010

Vertex Oral Presentations

November 1, 2010 @ 5:00 p.m. ET

#LB-2 “Telaprevir in Combination with Peginterferon Alfa2a and Ribavirin for 24 or 48 weeks in Treatment-Naïve Genotype 1 HCV Patients who Achieved an Extended Rapid Viral Response: Final Results of Phase 3 ILLUMINATE Study” Hynes Auditorium

November 2, 2010 @ 8:00 a.m. ET

#211 “Telaprevir in Combination with Peginterferon and Ribavirin in Genotype 1 HCV Treatment-Naïve Patients: Final Results of Phase 3 ADVANCE Study” Hynes Auditorium

November 2, 2010 @ 11:45 a.m. ET

#227 “Long-term Follow-up of Patients with Chronic Hepatitis C Treated with Telaprevir in Combination with Peginterferon Alfa-2a and Ribavirin: Interim Analysis of the EXTEND Study” Hynes Room 304/306

Vertex Poster Presentations

October 31, 2010 @ 8:00 a.m. ET

#805 “No Impact of Insulin Resistance on Antiviral Efficacy of Telaprevir-based Regimen in HCV Genotype 1 Treatment-Naïve Patients: Subanalysis of C208 Study” Hynes Exhibit Hall C

#828 “Activity of Telaprevir Monotherapy or in Combination with Peginterferon-alfa-2a and Ribavirin in Treatment-naïve Genotype 4 Hepatitis-C Patients: Final Results of Study C210” Hynes Exhibit Hall C

#1051 “Spontaneous Viral Clearance in a Patient With Chronic Hepatitis C who Relapsed After Telaprevir-based Treatment” Hynes Exhibit Hall C

#899 “The Effect of Hepatitis C Treatment Response on Medical Costs: a 5-Year Longitudinal Analysis in a Managed Care Setting” Hynes Exhibit Hall C

November 1, 2010 @ 8:00 a.m. ET

#LB-11 “Clinical Virology Results from Telaprevir Phase 3 Study ADVANCE” Hynes Exhibit Hall C

Aethlon Medical starts patient enrollment of Hemopurifier in battle against HCV...

From the PharmaLive.com News Archive - Oct. 21, 2010
SAN DIEGO, Oct. 21 /PRNewswire-FirstCall/ -- Aethlon Medical, Inc. (OTC Bulletin Board: AEMD), the pioneer in developing therapeutic filtration devices to address infectious disease and cancer, announced today it has established primary clinical endpoints and clarified efficacy assessments related to a study that will evaluate the use of the Aethlon Hemopurifier® in combination with standard of care (SOC) HCV drug therapy.  As a result, Aethlon will now initiate the recruitment of candidate patients and begin exporting its Hemopurifier® for clinical purposes.  The study will be conducted at Medanta, The Medicity Institute (Medicity), which is a $360 million multi-specialty medical institute recently established on a 43-acre campus to be a premier center of medical tourism in India. The Aethlon Hemopurifier® is a first-in-class medical device that selectively targets the removal of infectious viruses and immunosuppressive proteins from the entire circulatory system.

A primary clinical goal of the study will be to demonstrate that the Aethlon Hemopurifier® improves the acceleration of viral load depletion when administered at the outset of SOC drug therapy. Clinical endpoints of the study will assess Early Viral Response (EVR) rates, Rapid Viral Response (RVR) rates, as well as Immediate Viral Response (IVR) rates, which are all highly predictive of a sustained viral response (SVR), which is defined as undetectable viral load six months after the completion of SOC drug therapy.  As the Hemopurifier® is designed to decrease the presence of circulating HCV virus, Aethlon will also seek to quantify the amount of HCV captured within the Hemopurifier® after the first application of the device in each enrolled patient. A lower body burden of HCV at the outset of SOC also correlates with improved treatment outcomes.

Early Viral Response (EVR)
As reported in the McHutchinson, et al 2009 study of 1,019 genotype I patients who initiated 48-week standard dose SOC PegIFN-a2b therapy, 39.9% of treated patients achieved an EVR.  Those patients who achieved an EVR, which represents undetectable viral load at day 90 of SOC treatment, achieved 99% SVR rates, representing an improved clinical benefit of greater than 200% as compared to patients that do not achieve an EVR.  A clinical goal of the Hemopurifier® study will be to increase the established likelihood that patients achieve an EVR.

Rapid Viral Response (RVR)
Also reported in the McHutchinson, et al 2009 study of 1,019 genotype I patients who initiated 48-week standard dose SOC PegIFN-a2b therapy, only 11.4% of treated patients achieved a RVR, which is defined as undetectable viral load at day 30.  However, those patients who achieved an RVR had SVR rates of approximately 90%, which represents a clinical benefit greater than 100% as compared to patients that do not achieve an RVR.  An additional clinical goal of the Hemopurifier® study will be to increase the likelihood that patients achieve an RVR.

Immediate Viral Response (IVR)
Aethlon will also seek to demonstrate that the addition of the Hemopurifier® to SOC drug therapy improves Immediate Viral Response (IVR) rates as compared to patients who receive SOC alone.  IVR, also known as first-phase kinetics, will be determined by measuring viral load at the end of day one (1), day two (2), day three (3), and day seven (7).  In this regard, an additional clinical goal will be to demonstrate the application of the Hemopurifier® in combination with SOC improves first-phase viral depletion kinetics in enrolled patients.
The principal investigator of the clinical study, which has been registered with the Clinical Trials Registry of India, will be Vijay Kher, M.D., Chairman of the Department of Nephrology at the Medanta Kidney & Urology Institute. Dr. Kher previously served as the principal investigator of Hemopurifier® human studies to treat HCV at the Apollo and Fortis hospitals in Delhi, India. The Apollo and Fortis studies demonstrated safety and the effectiveness of the Hemopurifier® to reduce viral load in the absence of drug therapy. Patients enrolled in the Medicity study will receive a maximum of six Hemopurifier® treatments within the first week of initiating SOC drug therapy.   The study will enroll up to 30 patients.

Upon the demonstration of improved clinical outcomes, Aethlon plans to advance commercialization through the Medicity and other regional treatment centers in India. The company has entered into an agreement with GVK Biosciences (GVK BIO) to expand the opportunity for Aethlon to commercialize its Hemopurifier® treatment technology at three to five new clinical centers in India.  GVK BIO is Asia's leading Discovery Research and Development organization. The HCV treatment opportunity for Aethlon is significant as it is estimated that 20 million of the 180 million people infected with HCV worldwide reside in India.  Based on patient feedback, Aethlon also believes that citizens of other nations that are infected with HCV may choose to travel to India to seek out new therapies that could help address their HCV infection. However, Medanta's Independent Ethics Committee (MIEC) has not yet approved the enrollment of treatment candidates who reside outside of India.

Intercell & Romark to start Phase II combination trial with HCV vaccine IC41 and nitazoxanide.

From the PharmaLive.com News Archive - Oct. 21, 2010

-- The companies are designing a treatment that combines Intercell's investigational Hepatitis C vaccine, IC41, with Romark's antiviral drug, nitazoxanide.

-- A combination Phase II trial is expected to start in H1/2011.

-- The trial will be sponsored by Romark. Intercell will provide the vaccine candidate IC41.

VIENNA, Oct. 21 /PRNewswire/ -- Intercell AG (VSE; "ICLL") and Romark Laboratories L.C. today announced plans to commence clinical trials of Intercell's investigational therapeutic Hepatitis C virus (HCV) vaccine, IC41, in combination with Romark's antiviral drug, nitazoxanide, during the first half of 2011.

Intercell's vaccine candidate has demonstrated a sustained reduction of viral load in chronic Hepatitis C (CHC) patients in a Phase II proof-of-concept trial. Nitazoxanide is an oral therapy that targets host cell factors involved in HCV replication and is not associated with viral mutations conferring resistance. Nitazoxanide has been shown to induce sustained virologic response as monotherapy in some patients chronically infected with HCV.

The planned European Phase II trial will include about 60 treatment-naïve patients chronically infected with HCV genotype-1 in three treatment arms: (1) IC41 plus nitazoxanide, (2) IC41 plus nitazoxanide and Pegasys® (peginterferon alfa-2a) and (3) Pegasys and Copegus® (ribavirin), the current standard of care, as an active control. The primary endpoint will be sustained virologic response (no detectable HCV RNA 24 weeks after end-of-treatment).

The companies involved in the combination study will retain commercial rights for their respective products.

"We are very pleased about this important next step in the development of our vaccine candidate against Hepatitis C. The distinctly different mode-of-action and the outstanding tolerability of both treatments create a joint approach in a field that will continue to have high unmet medical need over the next decades," stated Gerd Zettlmeissl, CEO of Intercell.

"We are excited about this novel therapeutic approach for chronic Hepatitis C," said Jean-Francois Rossignol, M.D., Ph.D., Chairman and Chief Science Officer of Romark. "There is an important need for novel therapies that offer improvements in safety and efficacy compared to current standard therapy. Our development program for nitazoxanide in combination with peginterferon addresses this need and promises to change paradigms for therapy of chronic Hepatitis C. The planned study of nitazoxanide in combination with Intercell's therapeutic vaccine further underscores our commitment to being a leader in the development of next-generation therapies."

Intercell's investigational therapeutic vaccine has been designed to restore an effective immune response against HCV, which ultimately is deemed necessary for sustained clearance of the virus. In a successful proof-of-concept trial involving around 50 treatment-naïve genotype-1 CHC patients, an optimized schedule of therapeutic vaccination achieved viral load reductions of more than 75% (0.6 log) in patients with high baseline RNA levels. Importantly, this reduction was sustained for at least six months following the end of treatment. As in previous trials with the vaccine from Intercell, vaccination was safe and well tolerated with minimal side effects.

Nitazoxanide, the first of a new class of broad-spectrum antiviral drugs called the thiazolides,(1,2,3) is an investigational new drug for CHC. It is a potent inhibitor of HCV in replicon studies,(2) and laboratory studies indicate that it does not induce viral mutations that confer drug resistance.(3,4) Nitazoxanide is synergistic with interferon and direct acting antivirals in replicon studies.(2,5) In a clinical trial of nitazoxanide monotherapy in patients with genotype 4 CHC, 17% (4 of 23) patients achieved sustained virologic response (undetectable serum HCV RNA 24 weeks after end of therapy), with all responders having low baseline serum HCV RNA levels (<400,000 IU/mL).(6) In other clinical trials, the addition of nitazoxanide to peginterferon or peginterferon plus ribavirin was associated with improvement in sustained virologic response rates without increasing the toxicities associated with peginterferon and ribavirin.(7,8) Romark is preparing to initiate Phase III clinical trials of nitazoxanide plus peginterferon for treatment of CHC.