Oncternal Therapeutics Announces Opening of Randomized Phase 2 Study of Cirmtuzumab in Combination with Ibrutinib
In June, the company presented data at the
Included in the results presented at
The CIRLL clinical trial is supported by a grant from the
“We are very pleased to be opening the randomized Phase 2 portion of the CIRLL study for patients with CLL and continue to be encouraged by the interim results from the study for both patients with CLL and patients with mantle cell lymphoma,” said
About the Study
The CIRLL Study (CIRM-0001) is a Phase 1/2 clinical trial evaluating cirmtuzumab in combination with ibrutinib in patients with CLL or MCL. Part 1 of the study was a Phase 1 dose-finding portion designed to determine the Phase 2 dose, or recommended dosing regimen (RDR). Part 2 was a Phase 1b expansion cohort to confirm the RDR. Interim analyses were specified for Part 1 and Part 2. Part 3 of the study, which is now open for enrollment, is a Phase 2 study in which approximately 90 patients with CLL will be randomized to receive either ibrutinib alone or ibrutinib plus cirmtuzumab, with a primary endpoint of complete response rate. An interim assessment of the first 12 patients with CLL enrolled in Part 1 of the study was presented as a poster at the 2019 ASCO Annual Meeting. Additional information about the CIRM-0001 study and other clinical studies of cirmtuzumab may be accessed at ClinicalTrials.gov.
Cirmtuzumab is an investigational, potentially first-in-class monoclonal antibody targeting ROR1, or Receptor tyrosine kinase-like Orphan Receptor 1. Cirmtuzumab is currently in a Phase 1/2 clinical trial in combination with ibrutinib for the treatment of CLL and MCL, in a collaboration with the
When expressed by hematologic malignancies such as CLL and MCL, ROR1 acts as a receptor for the tumor growth factor Wnt5a. Researchers at the
Oncternal cautions you that statements included in this press release that are not a description of historical facts are forward-looking statements. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplates,” “believes,” “estimates,” “predicts,” “potential” or “continue” or the negatives of these terms or other similar expressions. These statements are based on the Company’s current beliefs and expectations. Forward looking statements include statements regarding: Oncternal’s belief that favorable outcomes from the ongoing Phase 1 portion of the clinical trial support opening the Phase 2 portion; and Oncternal’s plans for enrolling patients in, and presenting data from, its clinical studies of cirmtuzumab. The inclusion of forward-looking statements should not be regarded as a representation by Oncternal that any of its plans will be achieved. Actual results may differ from those set forth in this release due to the risks and uncertainties inherent in Oncternal’s business, including, without limitation: uncertainties associated with the clinical development and process for obtaining regulatory approval of cirmtuzumab and Oncternal’s other product candidates, including potential delays in the commencement, enrollment and completion of clinical trials; the Company’s dependence on the success of cirmtuzumab and its other product development programs; the risk that interim results of a clinical trial do not necessarily predict final results and that one or more of the clinical outcomes may materially change as patient enrollment continues, following more comprehensive reviews of the data, and as more patient data become available; the risk that unforeseen adverse reactions or side effects may occur in the course of developing and testing product candidates such as cirmtuzumab and Oncternal’s other product candidates; the Company’s limited operating history and that fact that it has incurred significant losses, and expects to continue to incur significant losses for the foreseeable future; risks related to the inability of Oncternal to obtain sufficient additional capital to continue to advance the development of cirmtuzumab and its other product candidates; and other risks described in the Company’s prior press releases as well as in public periodic filings with the U.S. Securities & Exchange Commission. All forward-looking statements in this press release are current only as of the date hereof and, except as required by applicable law, Oncternal undertakes no obligation to revise or update any forward-looking statement, or to make any other forward-looking statements, whether as a result of new information, future events or otherwise. All forward-looking statements are qualified in their entirety by this cautionary statement. This caution is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.
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Source: Oncternal Therapeutics