Nektar
Therapeutics (Nasdaq: NKTR) announced that preclinical data for its
proprietary product candidate NKTR-102 (PEG-irinotecan) will be presented
at the upcoming AACR-NCI-EORTC International Conference on Molecular
Targets and Therapeutics in San Francisco, California on October 25, 2007.
The presentations will highlight new results from preclinical trials of
NKTR-102 in mouse models of colorectal, lung and breast cancers. NKTR-102
is a PEGylated form of irinotecan created using Nektar’s innovative small
molecule PEGylation technology platform and is in Phase 1 clinical
development for the treatment of solid tumors.
In preclinical studies presented at ECCO 14 in September, NKTR-102
substantially suppressed tumor growth in an irinotecan-resistant mouse
colorectal tumor model, while irinotecan-treated groups did not show a
statistically significant decrease in tumor growth compared to controls.
Further, administration of NKTR-102 resulted in a significantly improved
pharmacokinetic profile for the active metabolite of irinotecan as compared
to treatment with irinotecan.
“The studies for NKTR-102 continue to indicate that Nektar’s small
molecule PEGylation technology can be a powerful platform for improving
chemotherapeutic agents,” Tim Riley, Ph.D., Vice President of PEGylation
Research at Nektar. “The new preclinical data in colorectal, lung and
breast tumor models also highlights the promise of NKTR-102 to serve as a
potentially new and powerful therapy in multiple solid tumor settings.”
Two poster presentations are scheduled:
October 25, 2007 – 12:30 PM – 2:00 PM (PT); 5:30 – 7:30 PM (PT)
Poster Session C — AACR-NCI-EORTC International Conference on Molecular
Targets and Therapeutics at Moscone Center West in San Francisco,
California.
— #C10 — A poster presentation of preclinical data focused on tumor
growth inhibition of NKTR-102 in mouse xenograft models of colorectal,
lung and breast cancer;
— #C157 — A poster presentation of preclinical data focused on the
pharmacokinetics and pharmacodynamics of the active metabolite of
irinotecan following administration of NKTR-102 in mouse xenograft models
of lung and colorectal cancer.
The AACR-NCI-EORTC International Conference on Molecular Targets and
Therapeutics Conference is an annual meeting of the American Association of
Cancer Research (AACR), the National Cancer Institute (NCI) and the
European Organization for Research and Treatment of Cancer (EORTC).
About NKTR-102
Nektar is developing NKTR-102, a PEGylated form of irinotecan, which
was invented by Nektar using its world-leading small molecule PEGylation
technology platform. The product is currently in Phase 1 clinical
development. Irinotecan is an important chemotherapeutic agent used for the
treatment of solid tumors, including colorectal and lung cancers. By
applying Nektar’s small molecule PEGylation technology to irinotecan,
NKTR-102 may prove to be a more powerful and tolerable anti-tumor agent.
Nektar PEGylation Platform
Nektar PEGylation technology can enhance the properties of therapeutic
agents by increasing drug circulation time in the bloodstream, decreasing
immunogenicity and dosing frequency, increasing bioavailability and
improving drug solubility and stability. It can also be used to modify
pharmaceutical agents to preferentially target certain systems within the
body. It is a technique in which non-toxic polyethylene glycol (PEG)
polymers are attached to therapeutic agents, and it is applicable to most
major drug classes, including proteins, peptides, antibody fragments, small
molecules, and other drugs.
Nektar PEGylation technology is also used in eight additional approved
partnered products in the U.S. or Europe today, including Roche’s
PEGASYS(R) for hepatitis C and Amgen’s Neulasta(R) for neutropenia.
About Nektar
Nektar Therapeutics is a biopharmaceutical company that develops and
enables differentiated therapeutics with its industry-leading PEGylation
and pulmonary drug development technology platforms. Nektar PEGylation and
pulmonary technology, expertise, manufacturing capabilities have enabled
nine approved products for partners, which include the world’s leading
pharmaceutical and biotechnology companies. Nektar also develops its own
products by applying its PEGylation and pulmonary technology platforms to
existing medicines with the objective to enhance performance, such as
improving efficacy, safety and compliance.
This press release contains forward-looking statements regarding the
potential of the company’s PEGylation technology platform and NKTR-102.
These forward-looking statements involve important risks and uncertainties,
including but not limited to: (i) preclinical testing and clinical trials
for NKTR-102 are long, expensive and uncertain processes, (ii) because the
NKTR- 102 product development programs are in the early phases of clinical
development, the risk of failure is high and can occur at any stage of
development, (iii) the company may fail to obtain regulatory approval of
NKTR- 102, (iv) potential competition from approved drugs or drugs under
development that may be safe and effective for the same indication as that
targeted by NKTR-102, and (v) the company’s patent applications for
NKTR-102 may fail to issue; patents that have issued may not be
enforceable; or unanticipated intellectual property licenses from third
parties may be required in the future. Other important risks and
uncertainties are detailed in the company’s reports and other filings with
the SEC including its most recent Annual Report on Form 10-K and Quarterly
Report on Form 10-Q. Actual results could differ materially from the
forward-looking statements contained in this press release. The company
undertakes no obligation to update forward-looking statements, whether as a
result of new information, future events, or otherwise. No information
regarding or presented at the scientific meetings referred to above (or
contained at the Internet links provided) is intended to be incorporated by
reference in this press release.
Nektar Therapeutics
nektar Continue reading →