SAN DIEGO, CA, USA I May 26, 2020 I Sorrento Therapeutics, Inc. (Nasdaq: SRNE, “Sorrento”) today announced it has received clearance from the U.S. Food and Drug Administration (FDA) for its investigational new drug (IND) application for STI-6129, a CD38-targeting antibody drug conjugate (ADC). STI-6129 utilizes several technology platforms that are under development by Sorrento Therapeutics, including a CD38 specific antibody identified from its fully human G-MAB™ antibody library, its proprietary drug payload Duostatin 5 and its site-specific C-LOCK conjugation technology.

“That the FDA cleared our STI-6129 IND application to proceed to human trials is another important milestone for Sorrento,” stated Dr. Henry Ji, Chairman and CEO of Sorrento Therapeutics. “Together with our CD38 CAR-T program, this has the potential to provide additional therapeutic options for patients in need. We are looking forward to further evaluating the safety and efficacy of STI-6129 in clinical trials.”

Sorrento intends to initiate a phase I multicenter, open-label, dose-escalation clinical trial in patients with advanced relapsed and/or refractory systemic amyloid light chain (AL) amyloidosis with a primary objective to identify a phase 2 dose for STI-6129 based on its safety, preliminary efficacy and pharmacokinetic profile. 

“This is Sorrento’s first ADC utilizing our site-specific C-LOCK conjugation technology that is advancing into clinical evaluation,” said Dr. Hui Li, head of Sorrento’s ADC business unit, Levena Biopharma. “STI-6129 demonstrated an improved therapeutic index in animal models, as compared to traditional non-selective conjugates, and we look forward to potentially expanding its utilization into additional ADC programs.”

About Sorrento Therapeutics, Inc. 

Sorrento is a clinical stage, antibody-centric, biopharmaceutical company developing new therapies to turn malignant cancers into manageable and possibly curable diseases. Sorrento’s multimodal multipronged approach to fighting cancer is made possible by its extensive immuno-oncology platforms, including key assets such as fully human antibodies (“G-MAB™ library”), clinical stage immuno-cellular therapies (“CAR-T”, “DAR-T”), antibody-drug conjugates (“ADC”), and clinical stage oncolytic virus (“Seprehvir®”). Sorrento is also developing potential antiviral therapies and vaccines against coronaviruses, including COVIDTRAP™, ACE-MAB™, COVI-MAB™, COVI-GUARD™, COVI-SHIELD™ and COVI-KILLER™.

Sorrento’s commitment to life-enhancing therapies for patients is also demonstrated by our effort to advance a first-in-class (TRPV1 agonist) non-opioid pain management small molecule, resiniferatoxin (“RTX”), and ZTlido® (lidocaine topical system) 1.8% for the treatment of post-herpetic neuralgia. Resiniferatoxin is completing a phase IB trial for intractable pain associated with cancer and a phase 1B trial in osteoarthritis patients. ZTlido® was approved by the FDA on February 28, 2018. For more information visit www.sorrentotherapeutics.com.

SOURCE: Sorrento Therapeutics