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DRUG APPROVALS BY DR ANTHONY MELVIN CRASTO
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Arena Pharmaceuticals Initiates Phase 1 Clinical Trial of APD334 for Autoimmune Diseases
April 5, 2013
Arena Pharmaceuticals, Inc. announced today the initiation of dosing in a Phase 1 clinical trial of APD334, a novel oral drug candidate that targets the sphingosine 1-phosphate subtype 1 (S1P1) receptor for the potential treatment of autoimmune diseases.
This randomized, double-blind and placebo-controlled Phase 1 trial will evaluate the safety, tolerability and pharmacokinetics of single-ascending doses of APD334 in up to 64 healthy adult volunteers.
“We are pleased to expand our clinical-stage pipeline by initiating a Phase 1 trial of APD334, and look forward to advancing this novel compound through our validated development platform,” said William R. Shanahan, M.D., Arena’s Senior Vice President and Chief Medical Officer. “APD334’s selectivity for the S1P1 receptor has the potential to improve upon the adverse event profile of currently available treatments for a spectrum of autoimmune diseases.”
About Autoimmune Diseases
Autoimmune diseases are characterized by an inappropriate immune response against substances and tissues that are normally present in the body. In an autoimmune reaction, a person’s antibodies and immune cells target healthy tissues, triggering an inflammatory response. Reducing the immune and/or inflammatory response is an important goal in the treatment of autoimmune disease.
About APD334
APD334 is an orally available drug candidate discovered by Arena that targets the S1P1 receptor for the potential treatment of a number of conditions related to autoimmune diseases, including multiple sclerosis, psoriasis and rheumatoid arthritis. S1P1 receptors have been demonstrated to be involved in the modulation of several biological responses, including lymphocyte trafficking from lymph nodes to the peripheral blood. By isolating lymphocytes in lymph nodes, fewer immune cells are available in the circulating blood to effect tissue damage. Arena has optimized APD334 as a potent and selective small molecule S1P1 receptor agonist that reduces the severity of disease in preclinical autoimmune disease models.
About Arena Pharmaceuticals
Arena is a biopharmaceutical company focused on discovering, developing and commercializing novel drugs that target G protein-coupled receptors, or GPCRs, to address unmet medical needs. BELVIQ® (lorcaserin HCl), Arena’s internally discovered drug, was approved by the US Food and Drug Administration in June 2012 and is under review for regulatory approval in additional territories. Arena’s US operations are located in San Diego, California, and its operations outside of the United States, including its commercial manufacturing facility, are located in Zofingen, Switzerland. For more information, visit Arena’s website at www.arenapharm.com.
Arena Pharmaceuticals® and Arena® are registered service marks of Arena Pharmaceuticals, Inc. BELVIQ® is a registered trademark of Arena Pharmaceuticals GmbH
Cellular Biomedicine Group Marks the Launch of China Clinical Trial for TC-DC Therapy for Hepatocellular Carcinoma
March 21, 2013
Cellular Biomedicine Group announced that in the first week of March 2013, the company launched a clinical trial for TC-DC (Tumor Stem Cell Specific Dendritic Cell) therapy for hepatocellular carcinoma (HCC), the most common type of liver cancer. The clinical trial, which is already in progress, is the result of collaboration between CBMG, California Stem Cell (CSC) and Shanghai’s PLA 85 Hospital. It is the first immune cell clinical trial of its kind in China.
CBMG’s joint venture with CSC grants CBMG an exclusive license from CSC to develop and market CSC’s cancer (TC-DC) technology in Greater China. CBMG receives support from CSC’s California-based team of scientists and medical professionals, including CSC’s Dr. Hans Keirstead .
PLA 85 Hospital is a large general teaching hospital with 12 departments, located in Shanghai and has been granted Class A Hospital status at the Tertiary Level (the highest class). The hospital has over 600 beds with more than 200 professors and associate professors, including many well-known experts who are known for their pioneering work in the diagnosis and treatment of tumors. The principal Investigator of the trial and director of the Liver Disease Center of PLA 85 Hospital, ProfessorChengwei Chen , commented, “When I heard of the success this treatment had in clinical trials for other cancers in the U.S., I was very excited at the prospect of the hope it could bring to the millions of patients in China suffering from HCC. I am happy to lead this endeavor to help as many people as we can.” Said Dr. Steve Liu , Chairman of CBMG, “The launch of this trial is a major milestone for all of the physicians, scientists and other professionals at CBMG, CSC and PLA 85 Hospital who have contributed to this work.”
Multinational Contract Research Organization (CRO) CMIC-GCP has been contracted to manage the trial design and minimize delays.
Hepatocellular Carcinoma
Forty-five percent of the world’s HCC patients are in China, with over 300,000 new patients diagnosed every year. Currently the therapies commonly offered to most patients are surgery and local chemotherapy, with a 2-year recurrence rate of 51% and median survival time of 13 months.
CBMG’s research studies the effects of TC-DC (Tumor Stem Cell Specific Dendritic Cell) therapy. Dr. William Cao , President of CBMG said, “In simplified terms, TC-DC therapy takes a sample of the patient’s own dendritic, or immune cells and a sample of the patient’s tumor stem cells and places them together in the lab. The dendritic cell will learn the characteristics of the tumor stem cells, and is reintroduced to the patient’s body, where it can “train” the immune system to fight and destroy the tumor stem cells, which are the root cause of tumor recurrence and metastasis.”
About Cellular Biomedicine Group
Cellular Biomedicine Group, Inc. develops proprietary cell therapies for the treatment of certain degenerative diseases and cancers. Our developmental stem cell, progenitor cell, and immune cell projects are the result of research and development by scientists and doctors from China and the United States. Our flagship GMP facility, consisting of eight independent cell production lines, is designed, certified and managed according to U.S. standards. To learn more about CBMG, please visit:www.cellbiomedgroup.com
NN1954, Long acting oral insulin may be a reality with NovoNordisk Using Merrion Pharmaceuticals GIPET Technology
20 MAR 2013
OI362GT (NN1954)
:Type 1 and 2 diabetes
:Phase 1
A long-acting oral basal insulin analogue intended as a tablet treatment.
Merrion Pharmaceuticals plc today announces that its partner, Novo Nordisk, successfully completed a single dose Phase I trial with a novel oral insulin (NN1954). Merrion Pharmaceuticals GIPET Technology was used in the formulation of NN1954.
The aim of this randomised, double-blind placebo and active controlled single ascending dose trial was to investigate the safety, tolerability, pharmacokinetics (exposure of drug) and pharmacodynamics (effect on blood glucose levels) of NN1954.
Under the terms of the license agreement entered into with Novo Nordisk in 2008 Merrion, receives payments on achievement of certain development, regulatory and sales milestones as well as royalties on sales.
Merrion’s Chairman, Michael Donnelly, said “This is another step towards improving the management options for diabetes. This type of ascending dose trial is a critical stage in the development of a new therapeutic. We continue to be encouraged with the commitment of Novo Nordisk to the incorporation of Merrion’s GIPET technology in the plan to bring an oral insulin tablet to the market.”
Phase 1-Merck Serono, a division of Merck in Darmstadt, Germany, today announced aPhase 1- Merck Serono’s investigational drug sprifermin (recombinant human FGF-18) in osteoarthritis (OA) of the knee
recombinant human FGF-18
Darmstadt, Germany, March 18, 2013 –
Merck Serono, a division of Merck in Darmstadt, Germany, today announced a strategic alliance with Nordic Bioscience Clinical Development A/S on Merck Serono’s investigational drug sprifermin (recombinant human FGF-18) in osteoarthritis (OA) of the knee. This agreement underscores Merck Serono’s commitment to osteoarthritis research and development.
Under the terms of the agreement, Nordic Bioscience will provide clinical development services to Merck Serono on a shared-risk basis in exchange for a payment structure that includes service fees and potential milestone and royalty payments on the program. Merck Serono retains full responsibility for the development and commercialization of the investigational drug. Financial terms of the collaboration were not disclosed. The alliance will draw on the joint expertise and resources of Merck Serono and Nordic Bioscience to conduct a multi-national Phase IIb trial (the FORWARD study) to further evaluate sprifermin for inhibition of the progression of structural damage, reduction of pain and improvement of physical function in patients with OA of the knee. The FORWARD study is expected to begin enrollment in the second half of 2013.
The FDA has opened the inside track to Novartis’ experimental lung cancer drug, LDK378, which gained “Breakthrough Therapy” designation
The FDA has opened the inside track to Novartis’ experimental lung cancer drug, which gained “Breakthrough Therapy” designation that speeds the development and review schedules for new treatments. The Swiss drug giant plans to file for approval the drug, now in mid-stage clinical trials, in early 2014. Since clinical development began in 2011, the program has advanced with lightning speed compared with those that take 10 years or so to trial before submitted for approval.
While there are no guarantees of an FDA approval for Novartis’ compound, code-named LDK378, the “breakthrough” tag provides an early nod to the potential of the candidate to improve treatment for patients with metastatic non-small cell lung cancer with anaplastic lymphoma kinase (ALK) mutations.
The “breakthrough” designation is also important because Novartis’ compound and others with the coveted status have a shot to be approved by the FDA without completing all three phases of clinical trials typically required before an approval decision.
Novartis’ LDK378 joined the “breakthrough” club after showing an 80% response rate in patients studied in Phase I trial of 88 subjects with advanced cases of ALK-positive NSCLC. The company has already begun a pair of Phase II studies of the compound for patients with the same kind of ALK-positive cancers, which account for about 3% to 8% of cases of NSCLC. And plans call for kicking off Phase III development of the new drug later this year.
“LDK378 is a strong example of our research approach, which focuses on identifying the underlying cause of disease pathways,” said Alessandro Riva, Novartis’ global head of oncology development, in a statement. “This Breakthrough Therapy designation will allow us to collaborate more closely with the FDA and potentially to expedite the availability of an important new treatment option for patients with ALK+ NSCLC.”
Phase 1- MERCK , Study of MK-8109 (Vintafolide) Given With Chemotherapy in Participants With Advanced Cancers
vintafolide
cas no 742092-03-1
http://www.ama-assn.org/resources/doc/usan/vintafolide.pdf
N-(4-{[(2-amino-4-oxo-1,4-dihydropteridin-6-yl)methyl]amino}benzoyl)-L-γ-glutamyl-L-α- aspartyl-L-arginyl-L-α-aspartyl-L-α-aspartyl-L-cysteine disulfide with methyl (5S,7R,9S)- 5-ethyl-9-[(3aR,4R,5S,5aR,10bR,13aR)-3a-ethyl-4,5-dihydroxy-8-methoxy-6-methyl-5- ({2-[(2-sulfanylethoxy)carbonyl]hydrazinyl}carbonyl)-3a,4,5,5a,6,11,12,13a-octahydro- 1H-indolizino[8,1-cd]carbazol-9-yl]-5-hydroxy-1,4,5,6,7,8,9,10-octahydro-2H-3,7- methanoazacycloundecino[5,4-b]indol-9-carboxylate
Vincaleukoblastin-23-oic acid, O4-deacetyl-, 2-[(2-mercaptoethoxy)carbonyl]hydrazide, disulfide with N-[4-[[(2-amino-3,4-dihydro-4-oxo-6-pteridinyl)methyl]amino]benzoyl]-L-γ- glutamyl-L-α-aspartyl-L-arginyl-L-α-aspartyl-L-α-aspartyl-L-cysteine
Vintafolide is a water-soluble, folate-receptor-targeted conjugate of folate and the vinca alkaloid desacetylvinblastine monohydrazide (DAVLBH) with potential antineoplastic activity. The folate moiety of folate-vinca alkaloid conjugate EC145 binds to folic acid receptors on the tumor cell surface and the agent is internalized via folate receptor-mediated endocytosis, delivering the tubulin-binding DAVLBH moiety directly into the tumor cell; DAVLBH binding to tubulin results in the disruption of microtubule assembly-disassembly dynamics, cell cycle arrest, and tumor cell apoptosis. Folic acid receptors are frequently upregulated on the surfaces of many tumor cell types. DAVLBH is a derivative of the natural product vinblastine.
http://clinicaltrials.gov/show/NCT01688791
ClinicalTrials.gov Identifier:
Vintafolide is a derivative of the anti-mitotic chemotherapy drug vinblastine.[1] chemically linked to folic acid. The vintafolide molecule was designed to specifically target the toxic vinblastine group to cancer cellsthat overexpress the folic acid receptor.[2] Vintafolide is being studied for treatment of late-stage ovarian cancer and mid-stage non-small cell lung cancer.
Merck & Co. acquired the development and marketing rights to this experimental cancer drug from Endocyte in April 2012. Endocyte had planned to file for marketing approval for vintafolide in the third quarter of 2012. The drug received an orphan drug status in Europe in March 2012.[3] Endocyte remains responsible for the development and commercialization of etarfolatide, a non-invasive companion diagnostic imaging agent used to identify folate receptor positive tumor cells that may be susceptible to vintafolide.[4]
- Statement on a nonproprietary name adopted by the USAN Council, United States Adopted Names (USAN) Council, 6 April 2012
- Dosio F, Milla P, Cattel L. EC-145, a folate-targeted Vinca alkaloid conjugate for the potential treatment of folate receptor-expressing cancers. Curr Opin Investig Drugs. 2010 Dec;11(12):1424-33. Review. PubMed PMID: 21154124.
- Endocyte soars on cancer drug deal with Merck, Reuters, US Edition, Mon Apr 16, 2012.
- Merck, Endocyte in Development Deal Wed, Drug Discovery and Development. 04/25/2012
Chemical structure of EC-145
(source: THE JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS, 2011, 336(2):336–343)
DCVax®-Direct Phase I/II Trial For All Inoperable Solid Tumors Is Expected To Produce Ongoing Results In 2013
BETHESDA, Md., \
March 5, 2013 Northwest Biotherapeutics (NW Bio), a biotechnology company developing DCVax® personalized immune therapies for solid tumor cancers, announced today that its Phase I/II DCVax-Direct clinical trial for all inoperable solid tumor cancers is planned to begin within approximately the next sixty days. As a Phase I/II trial, this trial is not blinded and the results will be seen as the trial proceeds. With an efficacy endpoint of tumor regression (i.e., tumor shrinkage or elimination), this innovative trial is expected to yield meaningful ongoing results by the second half of 2013.
This clinical trial is approved by the FDA for all types of solid tumor cancers (i.e., cancers in any tissues of the body), and is configured to provide rapid results. In the Phase I portion, it will test both safety and a variety of dosing regimes, and will do so in multiple different cancers – avoiding the need to conduct separate Phase I studies in each such cancer, as is usually the case. Then, the trial will go directly into the Phase II portion, testing for efficacy, without the need for another FDA review.
DCVax®
All immune responses start in the same way that involves initially a single cell type, the dendritic cell (DC). This cell functions like the General of an army, in that it directs all ensuing activities of the immune response. The immune system is like an army with many divisions, and multiple soldiers with various types of weapons. When an invader, which could be a virus, bacteria, or a cancer cell, encounters a DC the result is that the DC consumes or eats the invader and chops it into small pieces. In the process, the DC becomes activated and starts traveling to the lymph node. In the lymph nodes the DC elicits a cascade of events eventually involving the entire army that leads to a full-blown immune response. Importantly, the nature of the invader and the nature of the DC activation dictate the type of immune response: the DC is the general of the army who directs all the soldiers to work in synchrony, and who determines which weapons to use to best defeat the enemy. We believe that preparing the DC outside the body, as done for DCVax® products, allows the greatest degree of control and begins the immune response in the natural fashion leading to the most complete attack on the foreign invader.
Different Approaches
We believe that the optimal way to arrive at the most effective immune response is through the control of the DC. Most traditional immunization approaches, including traditional virus, specific antigen or peptide vaccines as well as some that are used for immunotherapy of cancer, try to control the already existing DC in the body, or they try to modulate only one arm of the immune system. The immunogen, i.e. the virus, specific antigen, peptide or the cancer cells used to prepare the vaccine, is in those cases injected into the body in a formulation that aims at targeting and activating local DC. Examples are viral, specific antigen or peptide vaccines formulated with adjuvant, or killed tumor cells alone or modified to produce the DC mobilizing protein GM-CSF. In these instances, it is left to chance as to whether the immunogen arrives at the DC, whether the DC are properly activated, and effectively migrate to lymph nodes to produce an effective immune response. We believe that the failure of several recent clinical trials may be the result of the inability of these other approaches to effectively mount a natural and robust immune response.
Treatments that use only a single division of the immune system may employ only large amounts of T cells, or a single (monoclonal) antibody. DCVax® products are being developed to activate all aspects of the immune response, both cellular and antibody, thus potentially providing a broader and longer lasting immune and clinical response. Northwest Biotherapeutics’ products are deigned as pure, activated DC loaded with the immunogen as would naturally occur, and that are capable of migrating to lymph nodes. The intended result is a very robust, and full immune response consisting of both a specific cellular T cell response and a specific antibody response against the cancer associated antigen. Data obtained in our Phase I and Phase II clinical trials suggest that such response may occur and may translate into a clinical benefit.
Cancer and the Immune System
Cancer cells produce many substances that shut down the immune response, as well as substances that paralyze the DC that are resident in the body. We believe therefore that the optimal time for controlling cancer growth by activating the immune system is at the time when tumor burden is low. Northwest Biotherapeutics targets patients with brain cancer following surgery, radiation and chemotherapy, and hormone independent prostate cancer patients with no detectable tumor growth. This approach aims at inducing powerful immune responses to control progression of the disease.
Manufacturing
Northwest Biotherapeutics has focused on solving many of the challenges that are typically associated with producing personalized products that consist of living cells. The Company’s new automated cell processing system allows high-throughput production of products for a fraction of the historical cost.
- DCVax® products contain pure DC
- The DC in DCVax® are prepared outside the body, which eliminates many uncontrollable variables, and are subjected to a potency test designed to ensure that the DC administered to the patient are capable of eliciting an immune response
- DCVax® is used in patients with low tumor burden
- DCVax® products can be manufactured in a cost-efficient manner
Phase 1-Sangamo Presents New Clinical Data at CROI 2013 Demonstrating Persistent Immune System Improvements After Treatment With ZFN Therapeutic(R) SB-728-T
The gene therapy diminished the levels of virus and eradicated in patients having naturally occurring mutation of gene, found a preliminary trail of HIV treatment. The first phase of very small trail tested the SB-728-T gene treatment that is intended to interrupt theCCR5 gene used by HIV to contaminate immune system cells.
The first clinical trial using zinc-finger nucleases to provide long-term resistance to HIV-1 infection has been given the go-ahead by the US Food and Drug Administration. Sangamo BioSciences of Richmond, California, and its clinical partner, the University of Pennsylvania, have begun enrolling the first 12 people in a phase 1 clinical trial to evaluate SB-728-T, a novel zinc-finger DNA-binding nuclease that permanently disrupts the CCR5 gene on CD4+ T cells (Nat. Biotechnol. 26, 808–816, 2008
Data Demonstrate that SB-728-T Possesses Necessary Immunologic Properties to Support a ‘Functional Cure’ for HIV/AIDS
RICHMOND, Calif., March 6, 2013
Sangamo BioSciences, Inc. announced new data from its program to develop a ‘functional cure’ for HIV/AIDS in two presentations at the 20th Conference on Retroviruses and Opportunistic Infections (CROI), held in Atlanta from March 3 to 6, 2013.
The first presentation described data from the SB-728-T Phase 1 study (SB-728-902, Cohorts 1-3) demonstrating that SB-728-T treatment of HIV-infected subjects leads to durable reconstitution of the immune system driven by increases in total CD4+ central memory T-cells (TCM) and CCR5-protected TCM. TCM are long-lived, self-renewing cells that have the ability to remember and react against foreign antigens including HIV. The data also showed that certain cell surface marker and gene expression profiles may predict which patients will likely respond best to SB-728-T treatment.
About Sangamo
Sangamo BioSciences, Inc. is focused on research and development of novel DNA-binding proteins for therapeutic gene regulation and genome editing. The Company has ongoing Phase 2 clinical trials to evaluate the safety and efficacy of a novel ZFP Therapeutic® for the treatment of HIV/AIDS. Sangamo’s other therapeutic programs are focused on monogenic diseases, including hemophilia, Huntington’s disease and hemoglobinopathies such as beta-thalassemia and sickle cell anemia. Sangamo’s core competencies enable the engineering of a class of DNA-binding proteins known as zinc finger DNA-binding proteins (ZFPs). Engineering of ZFPs that recognize a specific DNA sequence enables the creation of sequence-specific ZFP Nucleases (ZFNs) for gene modification and ZFP transcription factors (ZFP TFs) that can control gene expression and, consequently, cell function. Sangamo has entered into a strategic collaboration with Shire AG to develop therapeutics for hemophilia, Huntington’s disease and other monogenic diseases and has established strategic partnerships with companies in non-therapeutic applications of its technology including Dow AgroSciences and Sigma-Aldrich Corporation. For more information about Sangamo, visit the company’s website atwww.sangamo.com.
Phase 1-Lorus Therapeutics Announces Allowance of Chinese Patent for Anticancer Drug LOR-253
has a fluoro gp
WO-2004016086, feb2004
2,4,5-Trisubstituted imidazoles and their use as anti-microbial agents
WO-2006126177, nov 2006
WO-2010102393, sept 2010
Description of LOR-253, LT253: LOR-253 HCl is the hydrochloride salt of a small molecule inhibitor of human metal-regulatory transcription factor 1 (MTF-1) with potential antitumor activity. MTF-1 inhibitor LOR-253 inhibits MTF-1 activity and thereby induces the expression of MTF-1 dependent tumor suppressor factor Kruppel like factor 4 (KLF4). This subsequently leads to the downregulation of cyclin D1, blocking cell cycle progression and proliferation. This agent also causes decreased expression of genes involved in tumor hypoxia and angiogenesis.
http://clinicaltrials.gov/ct2/show/NCT01281592
ClinicalTrials.gov Identifier: NCT01281592
Lorus Therapeutics
This is an open-label, phase 1 study to determine the maximum tolerated dose (MTD) or appropriate target dose if MTD not reached to identify the recommended phase 2 dose of LOR-253 HCl in patients with advanced or metastatic solid tumours.
March 5, 2013) – Lorus Therapeutics Inc. (“Lorus”), a biopharmaceutical company specializing in the discovery, research and development of pharmaceutical products and technologies for the management of cancer, today announced that Lorus’ patent for its lead small molecule anticancer drug LOR-253 has been allowed in China. The patent provides Lorus with exclusive rights to LOR-253 in China until 2026.
The Chinese patent provides composition of matter protection for LOR-253 and for use in the manufacture of therapies for the treatment of cancer. The patent covers a wide range of cancers, including leukemia, melanoma, as well as non-small cell lung, colon, prostate, and breast tumors. This patent extends the Company’s international patent portfolio which includes similar protection for LOR-253 in the United States, Canada, and Australia. Applications are pending in Europe and Japan.
“This increased patent protection for our anticancer therapies supports our business discussions with potential partners,” said Dr. Aiping Young, Lorus’ President and CEO. “This Chinese patent is an important addition to our global IP portfolio for LOR-253, and demonstrates our commitment to the development of innovative cancer therapies intended for significant markets.”
LOR-253 is currently in a clinical study at Memorial Sloan Kettering Cancer Center and MD Anderson Cancer Center evaluating tumor biomarkers in biopsy-suitable patients with advanced or metastatic solid tumors.
About LOR-253
LOR-253 represents a new class of anticancer agent, which we believe may offer a competitive advantage over conventional drugs. This drug candidate has shown selective and potent antitumor activity in preclinical investigations with a variety of human cancers, including colon cancer and non-small cell lung cancer, and has demonstrated an excellent therapeutic window due to its low toxicity. LOR-253 is a first-in-class small molecule that has been optimized to induce the novel tumor suppressor Krüppel-like factor 4 (KLF4), leading to cancer cell cycle arrest and apoptosis as well as inhibition of metastasis.
About Lorus
Lorus is a biopharmaceutical company focused on the discovery, research and development of novel therapeutics in cancer. Lorus’ goal is to capitalize on its research, preclinical, clinical and regulatory expertise by developing new drug candidates that can be used, either alone, or in combination with other drugs, to successfully manage cancer. The Company also has expertise in antimicrobial drug discovery. Lorus Therapeutics Inc. is listed on the Toronto Stock Exchange under the symbol LOR.
PHASE1,Progenics Pharmaceuticals’ Novel Small Molecule Drugs Targeting PSMA Successfully Visualize Prostate Cancer, 123-I-MIP-1095
Name: 123-I-MIP-1095
Synonym: 123-I-MIP-1095; [123I]-MIP-1095; iodine I 123 IMP-1095; 2-(3-{l-carboxy-5-[3-(4-iodo-phenyl)-ureido]-pentyl}-ureido)-pentanedioic acid.; [123I]-(S)-2-(3-((S)-1-carboxy-5-(3-(4-iodophenyl)ureido)pentyl)ureido)pentanedioic acid
IUPAC/Chemical name:
2-(3-(1-carboxy-5-(3-(4-iodophenyl)ureido)pentyl)ureido)pentanedioic acid
Chemical Formula: C19H25123IN4O8
Exact Mass: 560.07284
Molecular Weight: 560.33
123-I-MIP-1095
An iodine 123-radiolabled small molecule that exhibits high affinity for prostate-specific membrane antigen (PSMA) with potential use in molecular imaging. 123-I-MIP-1095, a radiolabeled glutamate-urea-lysine analogue, selectively binds PSMA, which allows imaging of PSMA-expressing prostate cancer cells with gamma scintigraph. PSMA is a transmembrane glycoprotein highly expressed by malignant prostate epithelial cells and vascular endothelial cells of various solid tumors.
| Synonym: | |
iodine I 123 IMP-1095 | |
|
|||
| Chemical structure: | |
2-(3-{l-carboxy-5-[3-(4-iodo-phenyl)-ureido]-pentyl}-ureido)-pentanedioic acid | |
March 5, 2013
Progenics Pharmaceuticals, Inc. (Nasdaq:PGNX) reported positive clinical data from a study of two novel radiolabeled small molecules targeting prostate-specific membrane antigen (PSMA). The imaging agents — 123I-MIP-1072 and 123I-MIP-1095 — had a high sensitivity of lesion detection in bone, tissue and the prostate gland with minimal retention in non-target tissue. The research was published as the cover article in the March issue of The Journal of Nuclear Medicine.
“Existing imaging techniques are limited in their ability to diagnose and stage prostate cancer,” said John J. Babich, Ph.D., senior author of the article “First-in-Man Evaluation of Two High-Affinity PSMA-Avid Small Molecules for Imaging Prostate Cancer.” “The approach described in this paper has the potential to assess disease status more accurately. It could help clinicians select optimal treatments and lead to better patient outcomes.”
Separate phase 1 studies were conducted under an exploratory investigational new drug (IND) application to measure the potential effectiveness of the small molecules in diagnosing and staging prostate cancer. In the first study, seven patients with documented prostate cancer were administered doses of 123I-MIP-1072 and 123I-MIP-1095, two weeks apart. In the second study, six healthy volunteers received 123I-MIP-1072 only. Whole body planar imaging and single photon emission computed tomography (SPECT)/computed tomography (CT) were performed for each group, and pharmacokinetics, tissue distribution, excretion, safety and organ radiation dose were analyzed.
Based on the data reported, Progenics is conductinga global, multi-center phase 2 trial investigating a next generation radiolabeled small molecule targeting PSMA, MIP-1404.
Mark R. Baker, chief executive officer of Progenics, said, “We recently acquired all of the rights to the compounds described in this Journal of Nuclear Medicine paper, as well as to the phase 2 stage imaging agent MIP-1404, through Progenics’ acquisition of Molecular Insight Pharmaceuticals. It is gratifying to see this expansion of our oncology pipeline demonstrating progress so soon.”
Robert J. Israel, M.D., Progenics’ senior vice president of medical affairs and clinical research, said, “We believe that MIP-1404 has excellent potential as a diagnostic radiopharmaceutical. Results to date from the study compounds and MIP-1404 show PSMA as a robust target for prostate cancer molecular imaging, and that a radiolabeled small molecule, which binds PSMA with high affinity, has the potential to detect prostate cancer throughout the body. Cancer treatment guidelines call for imaging prostate cancer with conventional bone scans or MRI. A more accurate method of imaging prostate cancer could be of great value.”
Mr. Baker further added, “Thought leaders in prostate cancer care are focused on avoiding unnecessary surgery and other invasive procedures due to the complications associated with them. Clinicians generally prefer “watchful waiting” when the cancer appears to be indolent. At the same time, some therapeutics to treat aggressive prostate cancer have recently been approved or are under development, such as Progenics’ own PSMA ADC, which currently is in phase 2 testing. Patients and their physicians would benefit from feedback on how therapeutic agents are impacting the course of cancer, and guidance on how and when to use therapeutic agents. It is clear that an improved way to visualize prostate cancer, with a high degree of specificity and sensitivity, would better inform both “watchful waiting” and the treatment of aggressive disease. We believe that data from the ongoing phase 2 trial of MIP-1404 will demonstrate its capabilities to assist prostate cancer patients and their physicians in making these critical decisions.”
About Prostate Cancer
Prostate cancer is the most common form of cancer affecting men in the United States and is the second leading cause of cancer deaths among men each year. The American Cancer Society estimates that in 2013, 238,590 new cases of prostate cancer will be diagnosed and approximately 29,720 American men will die from the disease. Accurate diagnosis and staging of prostate cancer is critical to determining appropriate patient management.
About Progenics
Progenics Pharmaceuticals, Inc. is discovering and developing innovative medicines for oncology, with a pipeline that includes product candidates in preclinical through late-stage development. Progenics’ first commercial product, Relistor® (methylnaltrexone bromide) for opioid-induced constipation, is marketed and in further development by Salix Pharmaceuticals, Ltd. for markets worldwide other than Japan, where Ono Pharmaceutical Co., Ltd. holds an exclusive license for the subcutaneous formulation. For additional information, please visit http://www.progenics.com.
New Drug Approvals 