On March 13, 2025 ImmunityBio, Inc. (NASDAQ: IBRX), a leading immunotherapy company, reported U.S. Urology Partners, one of the nation’s largest independent providers of urology and related specialty services, is one of the first providers to participate in ImmunityBio’s Expanded Access Program (EAP) for recombinant Bacillus Calmette-Guérin (rBCG) to address the current shortage of TICE BCG in the U.S (Press release, ImmunityBio, MAR 13, 2025, View Source [SID1234651127]).

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"The shortage of BCG has real consequences, especially in many rural communities across the country where supply shortages have impacted the treatment of patients with bladder cancer," said Christopher M. Pieczonka, M.D., Chief Executive Officer and Director of Clinical Research, Associated Medical Professionals, an affiliate of U.S. Urology Partners. "I’m pleased U.S. Urology is at the forefront of offering rBCG and would like to thank ImmunityBio for their initiative to seek and secure authorization from the FDA for expanded access to this vital BCG alternative."

Supply shortages of TICE BCG in the U.S. have become a significant impediment to the treatment of bladder cancer patients. In a recent Sermo survey of 100 U.S. urologists, 57 percent indicated they were unable to treat patients in the last 12 months due to a lack of access to TICE BCG. Providers who are unable to source TICE BCG are able to access rBCG through the ImmunityBio EAP.

"It is gratifying to see the rapid uptake and interest in the rBCG Expanded Access Program, which was authorized by the FDA just recently," added Dr. Patrick Soon-Shiong, Founder, Executive Chairman and Global Chief Scientific and Medical Officer of ImmunityBio. "Participation by a major national provider like U.S. Urology Partners is a testament to the critical importance of rBCG and the need for an alternative supply of this essential medicine."

"This is an incredibly exciting opportunity to expand the BCG supply to allow more patients to receive the full course of their cancer treatment, saving bladders and extending lives," said Dr. Eugene B. Cone, Co-Director of Clinical Research, Urology of Indiana, an affiliate of U.S. Urology.

The Serum Institute of India, ImmunityBio’s collaboration partner, is the world’s largest manufacturer of vaccines by volume. In bladder cancer clinical trials in Europe, the recombinant BCG vaccine has demonstrated potent immunogenicity with CD8+ and CD4+ T cell stimulation and improved safety compared to earlier BCG strains and formulations. Clinical research organization, Anova Enterprises, Inc. (Anova) is helping ImmunityBio manage the rBCG EAP.

"Constrained BCG supply has improved stewardship of a limited resource but has come at a high cost to our patients," said Dr. Chad Reichard, Co-Director of Clinical Research, Urology of Indiana. "rBCG represents a long overdue potential alternative but does not abrogate responsibility to ongoing diligence and discipline in BCG delivery."

About Recombinant BCG (rBCG)

BCG is a benign bacterium originally developed as a live vaccine against tuberculosis (TB). It is based on the well-known Mycobacterium bovis (M. bovis) Bacillus Calmette-Guérin (BCG) strain. It has been in use since 1921 and administered to more than 4 billion individuals worldwide. BCG given via intravesical instillation (delivery to the bladder via a catheter) has been the standard of care for patients with non-muscle invasive bladder cancer (NMIBC) since 1977. BCG induces an immune response in the bladder in proximity to the cancer cells, leading to clearance of the cancer in many patients.

Two gene modifications have been implemented in rBCG to improve its immunogenicity and safety in comparison to earlier strains and formulations of BCG. Recombinant rBCG has completed Phase 1/2 human clinical studies in Europe as an immunotherapy in patients with NMIBC. The findings from those studies demonstrate rBCG is well-tolerated when administered intravesically with a safety profile similar to placebo, and reduced rates of adverse events observed in earlier strains and formulations of BCG.

Supportive clinical data of rBCG as a TB vaccine are available from four clinical trials. Two studies in healthy adult volunteers and one Phase IIa study in healthy newborn infants were performed with rBCG. Additionally, a Phase II clinical trial was conducted with rBCG in HIV-unexposed and HIV-exposed, BCG-naïve newborn infants for clinical bridging. Clinical trials have also been conducted to assess the effect of rBCG vaccination on TB recurrence and on the susceptibility or severity of respiratory diseases during the severe acute respiratory syndrome-coronavirus 2 (SARS-CoV-2) pandemic.

BCG is one of the most widely used vaccines worldwide. However, because BCG is a biologic drug that uses benign bacteria, it is more complicated to manufacture than many other types of drugs. Serum Institute of India is the largest manufacturer of BCG vaccines in the world, while Merck & Co., based in New Jersey, currently is the only manufacturer of BCG (TICE BCG) in the U.S.

ImmunityBio has been awarded multiple patents covering the composition and methods of use for the combination of BCG plus ANKTIVA in bladder cancer (US 11,173,191 Β2; US 11,679,144 Β2; US 11,890,323 B2).

About ANKTIVA

The cytokine interleukin-15 (IL-15) plays a crucial role in the immune system by affecting the development, maintenance, and function of key immune cells—NK and CD8+ killer T cells—that are involved in killing cancer cells. By activating NK cells, ANKTIVA overcomes the tumor escape phase of clones resistant to T cells and restores memory T cell activity with resultant prolonged duration of complete response.

ANKTIVA is a first-in-class IL-15 agonist IgG1 fusion complex, consisting of an IL-15 mutant (IL-15N72D) fused with an IL-15 receptor alpha, which binds with high affinity to IL-15 receptors on NK, CD4+, and CD8+ T cells. This fusion complex of ANKTIVA mimics the natural biological properties of the membrane-bound IL-15 receptor alpha, delivering IL-15 by dendritic cells and drives the activation and proliferation of NK cells with the generation of memory killer T cells that have retained immune memory against these tumor clones. The proliferation of the trifecta of these immune killing cells and the activation of trained immune memory results in immunogenic cell death, inducing a state of equilibrium with durable complete responses. ANKTIVA has improved pharmacokinetic properties, longer persistence in lymphoid tissues, and enhanced anti-tumor activity compared to native, non-complexed IL-15 in-vivo.

ANKTIVA was approved by the FDA in 2024 for BCG-unresponsive non-muscle invasive bladder cancer CIS with or without papillary tumors. For more information, visit ImmunityBio.com (Founder’s Vision) and Anktiva.com.