Kiromic Announces Submission of Two IND Applications for PD1 Gamma-delta CAR – T cell Therapy with the FDA

HOUSTON–(BUSINESS WIRE)–Kiromic BioPharma (“the Company”) (NASDAQ: KRBP), a target discovery and gene-editing company utilizing artificial intelligence and its proprietary neural network platform with a therapeutic focus on immuno-oncology, announced today the submission of two investigational new drug (IND) applications with the U.S. Food and Drug Administration (FDA) for the initiation of:

— Phase 1 clinical trial of an intravenously (IV) administered allogenic CAR-T for epithelial ovarian carcinoma (EOC) and malignant pleural mesothelioma (MPM) and

— Phase 1 clinical trial of an intrapleural/intraperitoneal (IP) administered allogenic CAR-T for EOC and MPM.

Kiromic’s proprietary PD1 Gamma-delta CAR (PD1-GDT CAR) T cell therapy is a novel method for “off-the-shelf” allogeneic CAR T cells derived from healthy donors. We believe our proprietary gamma-delta T cell manufacturing and distribution will offer significant advantages over competitive manufacturing technologies.

The initial dose escalation component of each CAR-T trial is projected to enroll approximately 12 patients over 4 months at two sites.

The first in-human dosing is targeted for 1Q-2021.

“It’s an exciting time to see our technology go into the clinic. This is the culmination of +25 years of research and development which has spanned the globe with international contributions and scientific collaborations from the sharpest minds of our time. Our gamma-delta T-cells are designed to offer clinicians a treatment option with:

— higher efficacy,

— higher safety (reducing graft vs. host risks), and

— lower manufacturing and distribution costs vs. cellular therapy technologies of the past,” says Dr. Maurizio Chiriva-Internati, PhD, CEO of Kiromic.

“This first in-human off-the-shelf allogenic gamma-delta chPD1 CAR-T cell therapy trial will mark a major milestone, not only for Kiromic, but also for clinicians who have been frustrated with the lack of CAR T cell treatment options for solid malignancies, since current CAR T cell therapies are only approved for hematologic malignancies, with all of the drawbacks of autologous based platforms,” commented Dr. Scott Dahlbeck, MD, Chief Medical Officer of Kiromic.

“The cGMP suite consists of 5 clean rooms which will be used to manufacture the Company’s off-the-shelf allogeneic therapies during clinical trials. The Company is fully ready for this IND filing and has the clinical manufacturing capability to supply its clinical trials,” commented Mr. Tony Tontat, CFO, COO of Kiromic.

“Kiromic’s proprietary PD1 Gamma-delta CAR (PD1-GDT CAR) T cell therapy is a novel method for “off-the-shelf” allogeneic CART T Cells derived from healthy donors. As we continue to grow our targets and our clinical programs, our IP portfolio is continually being fortified in all major geographies, and we look forward to updating our investors in upcoming presentations and filings,” commented Mr. Gianluca Rotino, Chief of Strategy and Innovations of Kiromic.

About Epithelial Ovarian Carcinoma

Ovarian tumors grow rapidly and metastasize early with a very aggressive disease course, either through direct extension from the ovarian/fallopian tumor to neighboring organs (bladder/colon), or by detaching from the primary tumor, and then spreading and adhering to intraperitoneal organs.

Epithelial ovarian carcinoma represents the vast majority of ovarian cancers and the most common histologic subtype is high grade serous epithelial ovarian carcinoma. Unlike most other cancers, ovarian carcinoma rarely disseminates through the vasculature, although pelvic and/or para-aortic lymph nodes can be involved. When ovarian cancer spreads to the mesothelium of the organs within the peritoneal cavity, it can result in encasement of these organs with significant pain and eventual obstruction of the stomach, large, and small intestines.

Despite advances in surgical techniques and intensive combination chemotherapy approaches, the survival rate substantially decreases after ovarian cancer has metastasized to pelvic organs (such as the uterus, fallopian tubes, bladder, and rectum), metastasized across the pelvic cavity to the abdominal organs and tissue (such as the omentum, small intestine, and retroperitoneal lymph nodes), or metastasized beyond the peritoneal cavity to distant parenchymal organs such as the liver and lung.

The ovarian cancer tumor microenvironment (TME) within the peritoneal cavity is a key element in the support of ovarian cancer growth, and only by addressing the TME, along with the ovarian cancer tumor cell itself, will significant advances be achieved.

Since ovarian cancer 5 year survival statistics have improved only slightly over the last few decades, innovative approaches such as Kiromic’s administration of a PD1-GDT CAR, which is designed to address the TME of EOC, are desperately needed.

About Malignant Pleural Mesothelioma

Patients with a diagnosis of mesothelioma are generally considered to be incurable, and typically present late, with multiple signs and symptoms such as shortness of breath, chest pain, cough, hemoptysis, dysphagia, weight loss, fatigue, night sweats, and face/arm swelling which often precludes surgical options. Chemotherapy and radiation therapy are also options but are often only palliative, with or without an attempted surgical resection.

If the patient is one of the few considered to be a surgical candidate, the surgical objective will be to obtain a maximal cellular reduction (MCR), followed by chemotherapy +/- radiation therapy. Yet even with an MCR and adjuvant therapies, the vast majority of patients still experience a recurrence, most of which are local, and when the tumors do recur, second line treatments are essentially palliative.

Hence, the majority of patients suffering from this disease need innovative and novel treatment options, as most patients will ultimately die of their disease with a poor remaining quality of life due to symptoms such as severe shortness of breath and chest pain, due to hardening of the pleura associated with the inevitable disease progression. Innovative approaches such as Kiromic’s administration of a PD1-GDT CAR, which is designed to address the tumor microenvironment (TME) of MPM are urgently needed.

About Kiromic

Kiromic BioPharma, Inc. is a preclinical stage biopharmaceutical company which is focused on discovering, developing, and commercializing novel immune-oncology applications through its robust product pipeline. The pipeline development is leveraged through the Company’s proprietary target discovery engine called “DIAMOND.” Kiromic’s DIAMOND is big data science meeting target identification, dramatically compressing man-years and billions of drug development dollars to develop a live drug. The Company maintains offices in Houston, Texas.

For more information, please visit the company’s website at www.kiromic.com.

Forward-Looking Statements

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Contacts

Tony Tontat
Chief Financial Officer
(844) 539 – 2873

ttontat@kiromic.com

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