[Federal Register Volume 75, Number 177 (Tuesday, September 14, 2010)]
[Pages 55809-55810]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-22844]



National Institutes of Health

Prospective Grant of Exclusive License: The Development of 
Immunotoxins/Targeted Toxins for the Treatment of Human Cancers

AGENCY: National Institutes of Health, Public Health Service, DHHS.

ACTION: Notice.


SUMMARY: This is notice, in accordance with 35 U.S.C. 209(c)(1) and 37 
CFR 404.7(a)(1)(i), that the National Institutes of Health, Department 
of Health and Human Services, is contemplating the grant of an 
exclusive patent license to practice the inventions embodied in U.S. 
Patent Application 61/241,620 entitled ``Development of an Immunotoxin 
in Which All B-Cell Epitopes Have Been Removed and Which Has High 
Cytotoxic Activity'' [HHS Ref. E-269-2009/0-US-01], U.S. Patent 
Application 60/969,929 entitled ``Deletions in Domain II of Pseudomonas 
Exotoxin A That Reduce Non-Specific Toxicity'' [HHS Ref. E-292-2007/0-
US-01], U.S. Patent Application 60/703,798 entitled ``Mutated 
Pseudomonas Exotoxins with Reduced Antigenicity'' [HHS Ref. E-262-2005/
0-US-01], U.S. Patent Application 60/160,071 entitled 
``Immunoconjugates Having High Binding Affinity'' [HHS Ref. E-139-1999/
0-US-01], U.S. Patent Application 60/067,175 entitled ``Antibodies, 
Including Fv Molecules, and Immunoconjugates Having High Binding 
Affinity for Mesothelin and Methods for Their Use'' [HHS Ref. E-021-
1998/0-US-01], U.S. Patent Application 60/010,166 entitled ``Molecular 
Cloning of Mesothelin, a Differentiation Antigen Present on 
Mesothelium, Mesotheliomas and Ovarian Cancers'' [HHS Ref. E-002-1996/
0-US-01], PCT Application PCT/US97/00224 entitled ``Mesothelin Antigen 
and Methods and Kits for Targeting It'' [HHS Ref. E-002-1996/1-PCT-01], 
U.S. Patent 5,747,654 entitled ``Recombinant Disulfide-Stabilized 
Polypeptide Fragments Having Binding Specificity'' [HHS Ref. E-163-
1993/0-US-01], PCT application PCT/US96/16327 entitled ``Immunotoxin 
Containing A Disulfide-Stabilized Antibody Fragment'' [HHS Ref. E-163-
1993/2-PCT-01], U.S. Patent Application 07/596,291 entitled ``A 
Monoclonal Antibody'' [HHS reference E-195-1990/0-US-01], and all 
continuing applications and foreign counterparts, to Morphotek, Inc. 
The patent rights in these inventions have been assigned to and/or 
exclusively licensed to the Government of the United States of America.
    The prospective exclusive license territory may be worldwide, and 
the field of use may be limited to:

    The use of the MORAb-009-PE-LR/8X immunotoxin for the treatment 
of mesothelin-expressing cancers, the use of the anti-CD300LF-PE/LR/
8X immunotoxin for the treatment of CD300LF-expressing cancers such 
as acute myelogenous leukemia (AML), and the use of annexin A2-
targeted PE-LR/8X toxin for the treatment of annexin A2-expressing 
cancers such as glioma, ovarian cancer and pancreatic cancer.

DATES: Only written comments and/or applications for a license which 
are received by the NIH Office of Technology Transfer on or before 
October 14, 2010 will be considered.

ADDRESSES: Requests for copies of the patent application, inquiries, 
comments, and other materials relating to the contemplated exclusive 
license should be directed to: David A. Lambertson, PhD., Senior 
Licensing and Patenting Manager, Office of Technology Transfer, 
National Institutes of Health, 6011 Executive Boulevard, Suite 325, 
Rockville, MD 20852-3804; Telephone: (301) 435-4632; Facsimile: (301) 
402-0220; E-mail: [email protected].

SUPPLEMENTARY INFORMATION: These inventions concern immunotoxins and 
targeted toxins, and methods of using the immunotoxins/targeted toxins 
for the treatment of (a) mesothelin-expressing cancers (such as 
mesothelioma, ovarian cancer and pancreatic cancer), (b) CD300LF-
expressing cancers (such as acute myelogenous leukemia (AML)) or (c) 
Annexin A2-expressing cancers (such as glioma, ovarian cancer and 
pancreatic cancer). Several specific immunotoxins/targeted toxins are 
covered by this technology, including MORAb-009-PE-LR/8X, anti-CD300LF-
PE-LR/8X and Annexin A2-targeted PE-LR/8X.
    Each of these immunotoxins/targeted toxins comprises (1) a toxin 
moiety (PE-LR/8X) that is a modified version of the Pseudomonas 
exotoxin A (``PE'') and (2) either (a) an antibody fragment domain that 
is capable of binding to mesothelin, (b) an antibody fragment domain 
that is capable of binding to CD300LF, or (c) a peptide that is capable 
of binding to Annexin A2. The toxin moiety been modified in various 
manners in order reduce immunogenicity, thereby improving the 
therapeutic value of PE while maintaining its ability to trigger cell 
death. Since mesothelin, CD300LF and Annexin A2 are each preferentially 
expressed on certain types of cancer cells, the targeting domains of 
the immunotoxins/targeted toxins (MORAb-009, anti-CD300LF and Annexin 
A2 binding peptide) allows the immunotoxins/targeted toxins to 
selectively bind to certain cancer cells so that only the cancer cells 
are killed. This results in an effective therapeutic strategy with 
fewer side effects due to less non-specific killing of cells.
    The prospective exclusive license will be royalty bearing and will 
comply with the terms and conditions of 35 U.S.C. 209 and 37 CFR 404.7. 
The prospective exclusive license may be granted unless the NIH 
receives written evidence and argument that establishes that the grant 
of the license would not be consistent with the requirements of 35 
U.S.C. 209 and 37 CFR 404.7 within thirty (30) days from the date of 
this published notice.
    Applications for a license in the field of use filed in response to 
this notice will be treated as objections to the grant of the 
contemplated exclusive license.

[[Page 55810]]

Comments and objections submitted to this notice will not be made 
available for public inspection and, to the extent permitted by law, 
will not be released under the Freedom of Information Act, 5 U.S.C. 

    Dated: September 7, 2010.
Richard U. Rodriguez,
Director, Division of Technology Development & Transfer, Office of 
Technology Transfer, National Institutes of Health.
[FR Doc. 2010-22844 Filed 9-13-10; 8:45 am]