TG Therapeutics Initiates Rolling Submission of Biologics License Application to U.S. Food and Drug Administration for Ublituximab in Combination with Umbralisib as a Treatment for Patients with Chronic Lymphocytic Leukemia
Dec 01, 2020
Completion of rolling submission for the BLA expected in 1H21
NDA for umbralisib monotherapy currently under review with the FDA; PDUFA goal date of
The Company has previously submitted a New Drug Application (NDA) to the FDA for umbralisib to treat relapsed/refractory marginal zone lymphoma (MZL) and follicular lymphoma (FL) and the FDA has granted Prescription Drug User Fee Act (PDUFA) goal dates of
ABOUT UNITY-CLL PHASE 3 TRIAL
UNITY-CLL is a global Phase 3 randomized controlled clinical trial comparing the combination of ublituximab plus umbralisib, or U2, to an active control arm of obinutuzumab plus chlorambucil in patients with both treatment-naïve and relapsed or refractory chronic lymphocytic leukemia (CLL). The trial randomized patients into four treatment arms: ublituximab single agent, umbralisib single agent, ublituximab plus umbralisib, and an active control arm of obinutuzumab plus chlorambucil. A prespecified analysis was conducted to assess the contribution of ublituximab and umbralisib in the U2 combination arm and allowed for the termination of the single agent arms. Accordingly, the UNITY-CLL Phase 3 trial continued enrollment in a 1:1 ratio into the two combination arms: the investigational arm of U2 and the control arm of obinutuzumab plus chlorambucil. Approximately 420 subjects enrolled to the two combination arms and approximately 60% of patients were treatment-naïve and 40% were relapsed or refractory. The primary endpoint for this study was superior progression-free survival (PFS) for the U2 combination compared to the control arm to support the submission for full approval of the U2 combination in CLL. Positive topline results from this trial were announced in
ABOUT CHRONIC LYMPHOCYTIC LEUKEMIA
Chronic lymphocytic leukemia (CLL) is the most common type of adult leukemia, and in 2020 it is estimated there will be more than 20,000 new cases of CLL diagnosed in
ABOUT FAST TRACK
Fast Track is a program designed to expedite the development and review of drugs that treat serious conditions and that demonstrate the potential to address an unmet medical need. Filling an unmet medical need is defined as providing a therapy where none exists or providing a therapy that may be potentially better than available therapy.
A drug that receives Fast Track designation is eligible for more frequent interactions with the FDA, priority review if relevant criteria are met, and rolling submission of the Biologics License Application or New Drug Application.
ABOUT ORPHAN DRUG DESIGNATION
Orphan drug designation is granted by the FDA to drugs and biologics which are defined as those intended for the safe and effective treatment, diagnosis or prevention of rare diseases/disorders that affect fewer than 200,000 people in the U.S. Orphan drug designation provides certain incentives which may include tax credits towards the cost of clinical trials and prescription drug user fee waivers. If a product that has orphan drug designation subsequently receives the first FDA approval for the disease for which it has such designation, the product is entitled to orphan product exclusivity.
TG Therapeutics is a biopharmaceutical company focused on the acquisition, development and commercialization of novel treatments for B-cell malignancies and autoimmune diseases. Currently, the company is in late-stage clinical development with two investigational compounds, ublituximab and umbralisib, the combination of which is referred to as “U2”, targeting hematological malignancies and autoimmune diseases. Ublituximab (TG-1101) is a glycoengineered monoclonal antibody that targets a specific and unique epitope on the CD20 antigen found on mature B-lymphocytes. Umbralisib (TGR-1202) is an oral, once-daily dual inhibitor of PI3K-delta and CK1-epsilon. Umbralisib is currently under review by the
1 Cancer Stat Facts: Leukemia – Chronic Lymphocytic Leukemia
This press release contains forward-looking statements that involve a number of risks and uncertainties. For those statements, we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. In addition to the risk factors identified from time to time in our reports filed with the Securities and Exchange Commission, factors that could cause our actual results to differ materially are the following: our ability to successfully and cost effectively complete preclinical and clinical trials; the risk that the Company will not complete its planned
Senior Vice President,
Source: TG Therapeutics, Inc.