Sonus Pharmaceuticals Initiates Phase 1 Clinical Trial for Company's Second Anti-cancer Drug, TOCOSOL(R) Camptothecin
28 Septiembre 2006 - 7:30AM
Business Wire
Sonus Pharmaceuticals, Inc. (NASDAQ:SNUS) today announced the
initiation of a Phase 1 clinical study for its second oncology
product candidate, TOCOSOL� Camptothecin, a novel camptothecin
drug. Formulated with the Company�s proprietary vitamin E-based
TOCOSOL technology, TOCOSOL Camptothecin is a New Chemical Entity
that is a conjugate of SN-38. SN-38 is the active ingredient in
irinotecan, a commercially available camptothecin analog.
Preclinical data, presented at the AACR-NCI-EORTC 2005 conference,
suggest that TOCOSOL Camptothecin may be more efficacious and
better tolerated than irinotecan. The single-agent Phase 1 study of
TOCOSOL Camptothecin is expected to enroll up to 61 patients with
advanced solid tumors at two leading cancer centers in the United
States, including the Sarah Cannon Research Institute (SCRI),
Nashville, Tennessee; and Fox Chase Cancer Center, Philadelphia,
Pennsylvania. The study will investigate the safety profile of
TOCOSOL Camptothecin at different doses in order to determine the
maximum tolerated dose in humans. The Phase 1 study is also
designed to observe anti-tumor effects of TOCOSOL Camptothecin as
well as to characterize the pharmacokinetics of the drug. �TOCOSOL
Camptothecin has shown impressive results in preclinical studies,�
said Howard A. Burris III, M.D., Chief Medical Officer and Director
of Drug Development, SCRI. �This promising compound may have the
ability to improve outcomes in patients treated with
camptothecin-based drugs.� �Moving our second TOCOSOL drug
candidate into clinical development marks a significant milestone
for Sonus. Based on the strength of preclinical data, we believe
that TOCOSOL Camptothecin may offer a more efficacious, safer and
easier to administer formulation of a camptothecin drug,� said
Richard Daifuku, M.D., Ph.D., Acting Chief Medical Officer and Vice
President of Preclinical and Clinical Research, Sonus
Pharmaceuticals. �Additionally, TOCOSOL Camptothecin is the first
New Chemical Entity invented by Sonus scientists, which serves to
further demonstrate the versatility of our proprietary TOCOSOL
technology and our growing capabilities in drug development.� About
TOCOSOL Camptothecin TOCOSOL Camptothecin is a new entry in the
same drug class as the approved camptothecin analogs, irinotecan
and topotecan. These products are used in the treatment of
colorectal, lung, ovarian and cervical cancers and have estimated
annual sales of over $1 billion. Camptothecins are among the most
important classes of anti-cancer drugs introduced in recent years;
however, the commercially available products have demonstrated
toxicities that may limit their clinical utility. TOCOSOL
Camptothecin is designed to overcome the limitations of the
marketed camptothecin analogs with the potential to provide
improved anti-tumor efficacy, better patient tolerance, reduced
duration of administration and improved convenience of use. About
Sonus Pharmaceuticals The Company�s lead oncology product
candidate, TOCOSOL Paclitaxel, is currently in a Phase 3 pivotal
trial in metastatic breast cancer. TOCOSOL Paclitaxel is a
ready-to-use, injectable formulation of paclitaxel that may reduce
treatment-limiting side effects and improve anti-tumor activity.
Submission of the New Drug Application for TOCOSOL Paclitaxel is
expected by the end of 2007. In October 2005, Sonus entered into a
licensing agreement with Schering AG for the development and
commercialization of TOCOSOL Paclitaxel. Located near Seattle,
Sonus Pharmaceuticals, Inc. is focused on the development of
oncology drugs that provide better therapeutic alternatives for
cancer patients, including improved efficacy, safety and
tolerability, and are more convenient to use. For additional
information on Sonus, including news releases, please visit
www.sonuspharma.com. Safe Harbor Certain statements made in this
press release are forward-looking such as those, among others,
relating to the development, safety and efficacy of therapeutic
drugs and potential applications for these products. As discussed
in Sonus Pharmaceuticals� filings with the Securities and Exchange
Commission, including its Annual Report on Form 10-K filed on March
16, 2006 and Quarterly Reports on Form 10-Q filed on May 10, 2006
and August 9, 2006, actual results could differ materially from
those projected in the forward-looking statements as a result of
the following factors, among others: the Company�s products will
require extensive clinical testing and approval by regulatory
authorities; such approvals are lengthy and expensive and may never
occur; risks that the Company will not be able to complete the
Phase 3 clinical trial for TOCOSOL Paclitaxel; risks that clinical
studies with TOCOSOL Paclitaxel will not be successful; risks that
the FDA may not approve the TOCOSOL Paclitaxel New Drug
Application; risks that the Phase 1 clinical trial for TOCOSOL
Camptothecin will not be successful; risks of successful
development of therapeutic drugs; and risks that the Company may
not be successful in obtaining funding from third parties or
completing a financing necessary to support the costs and expenses
of clinical studies as well as research and development activities.
The Company undertakes no obligation to update the forward-looking
statements contained herein or to reflect events or circumstances
occurring after the date hereof. Sonus Pharmaceuticals, Inc.
(NASDAQ:SNUS) today announced the initiation of a Phase 1 clinical
study for its second oncology product candidate, TOCOSOL(R)
Camptothecin, a novel camptothecin drug. Formulated with the
Company's proprietary vitamin E-based TOCOSOL technology, TOCOSOL
Camptothecin is a New Chemical Entity that is a conjugate of SN-38.
SN-38 is the active ingredient in irinotecan, a commercially
available camptothecin analog. Preclinical data, presented at the
AACR-NCI-EORTC 2005 conference, suggest that TOCOSOL Camptothecin
may be more efficacious and better tolerated than irinotecan. The
single-agent Phase 1 study of TOCOSOL Camptothecin is expected to
enroll up to 61 patients with advanced solid tumors at two leading
cancer centers in the United States, including the Sarah Cannon
Research Institute (SCRI), Nashville, Tennessee; and Fox Chase
Cancer Center, Philadelphia, Pennsylvania. The study will
investigate the safety profile of TOCOSOL Camptothecin at different
doses in order to determine the maximum tolerated dose in humans.
The Phase 1 study is also designed to observe anti-tumor effects of
TOCOSOL Camptothecin as well as to characterize the
pharmacokinetics of the drug. "TOCOSOL Camptothecin has shown
impressive results in preclinical studies," said Howard A. Burris
III, M.D., Chief Medical Officer and Director of Drug Development,
SCRI. "This promising compound may have the ability to improve
outcomes in patients treated with camptothecin-based drugs."
"Moving our second TOCOSOL drug candidate into clinical development
marks a significant milestone for Sonus. Based on the strength of
preclinical data, we believe that TOCOSOL Camptothecin may offer a
more efficacious, safer and easier to administer formulation of a
camptothecin drug," said Richard Daifuku, M.D., Ph.D., Acting Chief
Medical Officer and Vice President of Preclinical and Clinical
Research, Sonus Pharmaceuticals. "Additionally, TOCOSOL
Camptothecin is the first New Chemical Entity invented by Sonus
scientists, which serves to further demonstrate the versatility of
our proprietary TOCOSOL technology and our growing capabilities in
drug development." About TOCOSOL Camptothecin TOCOSOL Camptothecin
is a new entry in the same drug class as the approved camptothecin
analogs, irinotecan and topotecan. These products are used in the
treatment of colorectal, lung, ovarian and cervical cancers and
have estimated annual sales of over $1 billion. Camptothecins are
among the most important classes of anti-cancer drugs introduced in
recent years; however, the commercially available products have
demonstrated toxicities that may limit their clinical utility.
TOCOSOL Camptothecin is designed to overcome the limitations of the
marketed camptothecin analogs with the potential to provide
improved anti-tumor efficacy, better patient tolerance, reduced
duration of administration and improved convenience of use. About
Sonus Pharmaceuticals The Company's lead oncology product
candidate, TOCOSOL Paclitaxel, is currently in a Phase 3 pivotal
trial in metastatic breast cancer. TOCOSOL Paclitaxel is a
ready-to-use, injectable formulation of paclitaxel that may reduce
treatment-limiting side effects and improve anti-tumor activity.
Submission of the New Drug Application for TOCOSOL Paclitaxel is
expected by the end of 2007. In October 2005, Sonus entered into a
licensing agreement with Schering AG for the development and
commercialization of TOCOSOL Paclitaxel. Located near Seattle,
Sonus Pharmaceuticals, Inc. is focused on the development of
oncology drugs that provide better therapeutic alternatives for
cancer patients, including improved efficacy, safety and
tolerability, and are more convenient to use. For additional
information on Sonus, including news releases, please visit
www.sonuspharma.com. Safe Harbor Certain statements made in this
press release are forward-looking such as those, among others,
relating to the development, safety and efficacy of therapeutic
drugs and potential applications for these products. As discussed
in Sonus Pharmaceuticals' filings with the Securities and Exchange
Commission, including its Annual Report on Form 10-K filed on March
16, 2006 and Quarterly Reports on Form 10-Q filed on May 10, 2006
and August 9, 2006, actual results could differ materially from
those projected in the forward-looking statements as a result of
the following factors, among others: the Company's products will
require extensive clinical testing and approval by regulatory
authorities; such approvals are lengthy and expensive and may never
occur; risks that the Company will not be able to complete the
Phase 3 clinical trial for TOCOSOL Paclitaxel; risks that clinical
studies with TOCOSOL Paclitaxel will not be successful; risks that
the FDA may not approve the TOCOSOL Paclitaxel New Drug
Application; risks that the Phase 1 clinical trial for TOCOSOL
Camptothecin will not be successful; risks of successful
development of therapeutic drugs; and risks that the Company may
not be successful in obtaining funding from third parties or
completing a financing necessary to support the costs and expenses
of clinical studies as well as research and development activities.
The Company undertakes no obligation to update the forward-looking
statements contained herein or to reflect events or circumstances
occurring after the date hereof.
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