ArQule Announces First Patient Dosed in Registrational MOSIAC Trial of Miransertib for the Treatment of Proteus Syndrome and PIK3CA-related Overgrowth Spectrum
MOSAIC trial represents the first registrational trial for Proteus Syndrome and PIK3CA-related overgrowth spectrum
“After years of extensive preclinical and clinical efforts among
“PS and PROS are chronic, progressive and debilitating conditions affecting both children and adults. At Texas Children’s Hospital (TCH) Vascular Anomalies Center we are very excited and hopeful that miransertib may help our patients,” said Dr.
The MOSAIC trial is an international, multi-center, open-label study that will evaluate the objective response to miransertib in patients with PS and PROS. The study will enroll approximately 30-35 patients with documented somatic mutations in the AKT1 or PIK3CA genes in the registrational cohorts for PS and PROS. Thirty to 35 additional patients will be enrolled in 2 other cohorts for patients under compassionate use or those ineligible to enter the registrational cohorts.
Miransertib (ARQ 092) is an orally available, selective, pan-AKT (protein kinase B) inhibitor that potently inhibits AKT 1, 2 and 3 isoforms and binds both the active and inactive forms of AKT which directly inhibits and prevents membrane localization, respectively. Dysregulation of AKT has been implicated in a variety of rare overgrowth diseases and cancers; however, there are currently no approved inhibitors of AKT. AKT inhibitors, either as a single agent or in combination therapy, show significant promise in molecularly defined patient populations. Miransertib has been granted Rare Pediatric Disease Designation for Proteus syndrome by the
About Proteus syndrome
Proteus syndrome is an ultra-rare condition characterized by the aberrant overgrowth of multiple tissues of the body. Patients with Proteus syndrome experience changes in the shapes of certain body structures over time, including abnormal, often asymmetric, massive growth (overgrowth) of the skeleton, skin, adipose tissue and central nervous system out of proportion to the rest of the body. Although patients may have minimal or no manifestations at birth, the disease develops and becomes apparent in early childhood (6-18 months) and rapidly progresses with intense growth in the first 10 years of life. The worldwide incidence is believed to be approximately one in a million. There are currently no approved medicinal treatments for Proteus syndrome, leaving patients with minimal treatment options to manage the disease and a mortality of 25% by age 22.
PROS is a term used to refer to a spectrum of rare diseases identified by somatic mutations in the PIK3CA gene, that result in excess growth in certain areas of the body. While the individual diseases that fall within the overgrowth spectrum have similar symptoms, each disease is defined by unique clinical characteristics. The implementation of genetic sequencing has led to the identification of the underlying genetic mutations that drive these overgrowth disorders, allowing for the development of medicines that target the specific causes of disease.
Forward Looking Statements
This press release contains forward-looking statements, including statements regarding the MOSAIC registrational study in Proteus syndrome and PROS. These statements are based on the Company’s current beliefs and expectations and are subject to risks and uncertainties that could cause actual results to differ materially from those set forth in this press release. Positive information about early stage clinical trial results does not ensure that later stage or larger scale clinical trials will be successful. For example, miransertib may not demonstrate adequate therapeutic effect; in addition, it may not demonstrate an appropriate safety profile in current or later stage or larger scale clinical trials as a result of known or as yet unanticipated side effects. The results achieved in current or later stage trials may not be sufficient to meet applicable regulatory standards or to justify further development. Problems or delays may arise prior to the initiation of planned clinical trials, during clinical trials or in the course of developing, testing or manufacturing that could lead the Company to discontinue development. Even if later stage clinical trials are successful, unexpected concerns may arise from subsequent analysis of data or from additional data. Obstacles may arise or issues may be identified in connection with review of clinical data with regulatory authorities. Regulatory authorities may disagree with the Company’s or its collaborators’ view of data or require additional data or information or additional studies. In addition, the planned timing of completion of clinical trials is subject to the ability of the Company and, in certain cases, its collaborators to enroll patients, enter into agreements with clinical trial sites and investigators, and overcome technical hurdles and other issues related to the conduct of the trials for which each of them is responsible. There is a risk that these issues may not be successfully resolved. Only a small number of research and development programs result in the commercialization of a product. Furthermore,
&Executive Assistant to the CFO
Cait Williamson, Ph.D.
LifeSci Public Relations