ImmunityBio to Present ‘Quality of life in QUILT 3.032 study: Patients with BCG-unresponsive non-muscle invasive bladder cancer (NMIBC) receiving IL-15R⍺Fc superagonist N-803 plus BCG’ at ASCO GU

• A positive difference in physical function in responders versus non-responders was noted
• The study indicates a favorable risk/benefit ratio and quality of life following N-803 plus BCG is comparable to BCG alone

ImmunityBio, Inc. (NASDAQ: IBRX), a clinical-stage immunotherapy company, today announced Dr. Karim Chamie, Associate Professor of Urology at UCLA, will be presenting “Quality of life in QUILT 3.032 study: Patients with BCG-unresponsive non-muscle invasive bladder cancer (NMIBC) receiving IL-15R⍺Fc superagonist N-803 plus BCG” at the ASCO Genitourinary Cancers Symposium (ASCO GU) conference in San Francisco, February 16-18. The Food and Drug Administration (FDA) is currently reviewing the Biologics License Application (BLA) for ImmunityBio’s N-803 plus BCG for the treatment of NMIBC CIS with a Prescription Drug User Fee Act (PDUFA) date of May 23, 2023.

Details about the presentation are below:

Date: February 16, 2023

Track: Urothelial Carcinoma, Prostate Cancer-Advanced

Sub-Track: Symptoms, Toxicities, Patient-Reported Outcomes and Whole-Person Care

Title: Quality of life in QUILT 3.032 study: Patients with BCG-unresponsive non-muscle invasive bladder cancer (NMIBC) receiving IL-15R⍺Fc superagonist N-803 plus BCG

Presenter: Dr. Karim Chamie, Associate Professor of Urology at UCLA

Session: Poster Session B: Prostate Cancer and Urothelial Carcinoma

Abstract #: 495

Location: Poster Board J17

Session Times: 11:30 a.m.-1:00 p.m.; 5:45-6:45 p.m. PST

Participants are also invited to attend ImmunityBio’s Medical Affairs booth (#65). For full session details and scientific presentation listings, please see the ASCO GU online program.

About ImmunityBio

ImmunityBio is a vertically-integrated, clinical-stage biotechnology company developing next-generation therapies and vaccines that bolster the natural immune system to defeat cancers and infectious diseases. The company’s range of immunotherapy and cell therapy platforms, alone and together, act to drive and sustain an immune response with the goal of creating durable and safe protection against disease. These platforms and their associated product candidates are designed to be more effective, accessible, and easily administered than current standards of care in oncology and infectious diseases.

N-803 (Anktiva™), ImmunityBio’s lead cytokine fusion protein, is a novel IL-15 superagonist complex and has received Breakthrough Therapy and Fast Track Designations from the U.S. Food and Drug Administration (FDA) for BCG-unresponsive CIS non-muscle invasive bladder cancer (NMIBC). N-803 is currently under review by the FDA for this indication with a Prescription Drug User Fee Act (PDUFA) target date of May 23, 2023.

The company has established GMP manufacturing capacity at scale with cutting-edge cell therapy manufacturing expertise and ready-to-scale facilities, as well as extensive and seasoned R&D, clinical trial, and regulatory operations, and development teams. For more information, please visit: www.immunitybio.com

Forward Looking Statements

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