ImmunityBio Launches Phase 2 Study of ResQ215B
Written by Emily J. Thompson, Senior Investment Analyst
Updated: 6d ago
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Should l Buy IBRX?
ImmunityBio announced the launch of ResQ215B, a Phase 2 clinical study evaluating a novel chemotherapy-free and lymphodepletion-free combination immunotherapy in patients with indolent B-cell non-Hodgkin lymphoma, including Waldenstrom's Macroglobulinemia. The outpatient study evaluates ImmunityBio's novel, off-the-shelf CD19-targeted high-affinity natural killer cell therapy in combination with nogapendekin-alfa inbakicept, an IL-15 superagonist, and the anti-CD20 monoclonal antibody rituximab. Notably, the regimen does not require any lymphodepleting chemotherapy, distinguishing it from conventional CAR-T cell therapies.
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Analyst Views on IBRX
Wall Street analysts forecast IBRX stock price to rise over the next 12 months. According to Wall Street analysts, the average 1-year price target for IBRX is 7.33 USD with a low forecast of 5.00 USD and a high forecast of 9.00 USD. However, analyst price targets are subjective and often lag stock prices, so investors should focus on the objective reasons behind analyst rating changes, which better reflect the company's fundamentals.
3 Analyst Rating
3 Buy
0 Hold
0 Sell
Strong Buy
Current: 5.640
Low
5.00
Averages
7.33
High
9.00
Current: 5.640
Low
5.00
Averages
7.33
High
9.00
About IBRX
Immunitybio, Inc. is a vertically integrated, clinical-stage biotechnology company developing therapies and vaccines that bolster the natural immune system to defeat cancers and infectious diseases. Using its applied science and platforms to treat cancers, including the development of potential cancer vaccines, as well as developing immunotherapies and cell therapies to reduce or eliminate the need for standard high-dose chemotherapy. Its platforms and their associated product candidates are designed to attack cancer and infectious pathogens by activating both the innate immune system, including NK cells, dendritic cells, and macrophages, as well as the adaptive immune system comprising B and T cells, in an orchestrated manner. Its platforms for the development of biologic product candidates include antibody-cytokine fusion proteins, vaccine vectors, and cell therapies. Its biologic commercial product candidate, Anktiva, is an IL-15 superagonist antibody-cytokine fusion protein.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.
- Mid-Stage Study Launch: Immunitybio announced the initiation of a mid-stage clinical study targeting indolent B-cell non-Hodgkin lymphoma (iNHL), evaluating the combination of CD19 CAR-NK cell therapy with Anktiva and Rituximab without the need for traditional lymphodepleting chemotherapy, thereby offering a safer treatment option for patients.
- Recruitment of Refractory Patients: The study will enroll patients with Waldenström's Macroglobulinemia who have relapsed or are refractory after at least two prior lines of therapy, aiming to enhance the depth and durability of anti-tumor activity through further stimulation of innate and adaptive immune responses, showcasing the company's innovative potential in treating difficult-to-treat tumors.
- FDA Application Progress: Immunitybio recently met with the U.S. FDA to discuss its application for Anktiva in combination with Bacillus Calmette-Guérin (BCG) for BCG-unresponsive non-muscle invasive bladder cancer, which was rejected in 2025; however, the company plans to submit additional information within 30 days to support a resubmission, demonstrating its ongoing commitment to the market.
- Positive Market Reaction: On Stocktwits, retail sentiment around IBRX shares remains in the 'bullish' territory with high message volume, and IBRX stock has gained approximately 90% over the past 12 months, reflecting investor confidence in the company's future developments.
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- Study Launch: ImmunityBio has announced the initiation of the ResQ215B study, evaluating a novel chemotherapy-free and lymphodepletion-free CAR-NK cell therapy aimed at treating indolent B-cell non-Hodgkin lymphoma (iNHL), including Waldenström’s Macroglobulinemia, marking a significant advancement in immunotherapy.
- Positive Clinical Results: In the Phase 1 study, all four patients with Waldenström’s Macroglobulinemia achieved clinical disease control when treated with CD19 CAR-NK cells combined with rituximab, with two patients maintaining complete remission at 7 and 15 months follow-up, indicating the therapy's potential.
- Significant Therapy Advantages: The design of the ResQ215B study eliminates the need for lymphodepleting chemotherapy, offering a safer treatment option that could transform the current treatment paradigm for indolent B-cell malignancies, particularly for patients deemed incurable.
- Enhanced Immune Response: By incorporating ANKTIVA, the study aims to further stimulate NK and CD8 T-cell activity, enhancing anti-tumor efficacy and potentially overcoming tumor resistance to rituximab, thereby improving the depth and durability of treatment responses.
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- Leadership Enhancement: Oncolytics Biotech has appointed John McAdory as Executive Vice President of Strategy and Operations and Yujun Wu as Vice President, Head of Biostatistics, both bringing extensive experience in late-stage oncology trial execution and regulatory strategy to advance the company's registration-directed programs in gastrointestinal cancers.
- Breakthrough Efficacy Data: The company reported that pelareorep achieved a 33% objective response rate in second-line KRAS-mutant microsatellite stable metastatic colorectal cancer patients when combined with standard chemotherapy, significantly surpassing the historical 6-11% response rate, indicating its potential in difficult-to-treat patient populations.
- FDA Designation Approval: Oncolytics secured FDA alignment on its Phase 3 study design for pelareorep in first-line metastatic pancreatic cancer, marking the initiation of the only immunotherapy registration trial planned for this challenging area, further solidifying its market position.
- Advisory Board Expansion: The company has expanded its Scientific Advisory Board by adding globally recognized experts from Memorial Sloan Kettering Cancer Center and MD Anderson Cancer Center, laying the groundwork for accelerated clinical development across multiple indications.
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