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NEW YORK–(BUSINESS WIRE)–

Tiziana Life Sciences plc (TLSA), a biotechnology company focusing on the discovery and development of innovative therapeutics for inflammation and oncology indications, today announced additional positive Phase 2a clinical data exhibiting impressive clinical activity of Milciclib monotherapy in patients with advanced Sorafenib-resistant or -intolerant patients with unresectable or metastatic hepatocellular carcinoma (HCC).

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This Phase 2a multi-center, single-arm, repeated-dose (100 mg once daily; 4 days on/3 days off for 4 weeks; defining each cycle) and 6-month duration study was conducted to evaluate the safety, tolerability and anti-tumor activity of Milciclib in Sorafenib-resistant patients with unresectable or metastatic advanced HCC. The trial enrolled 31 patients in Italy, Greece and Israel, of which 28 patients were evaluable. While the primary endpoint of this study was overall safety, secondary endpoints were also evaluated.

As previously announced on 22 July 2019, the clinical data from the Phase 2a trial indicated that Milciclib was well tolerated with manageable toxicities and no recorded drug related deaths, thereby meeting the trial’s primary endpoint. The Company now announces all the major highlights of the clinical data from the trial, which also indicate positive clinical activity relating to the secondary endpoints including progression-free survival (“PFS”) and time to progression (“TTP”).

MAJOR HIGHLIGHTS OF THE CLINICAL DATA

As per the study protocol, data collection was limited to 6-months. Thus, clinical data were not collected from patients under compassionate use treatment. The clinical activity assessment in evaluable patients was based on the investigators’ review using the modified Response Evaluation Criteria in Solid Tumors (mRECIST).

  • 14 out of 28 (50%) evaluable patients completed 6-month duration of the trial.
  • 9 out of 14 patients (64.2%) were approved by their respective ethical committees to continue the treatment.
  • 5 of the 9 patients on compassionate use had received Milciclib for a total of 9, 9, 11, 13 and 16 months.
  • As of 1 September 2019, the remaining 4 patients continuing the treatment are in their 10th, 11th, 11th and 12th months.
  • Both median TTP and PFS were 5.9 months (95% Confidence Interval (“CI”) 1.5-6.7 months) out of the 6-months duration of the trial.
  • 17 of 28 (60.7%) evaluable patients showed ‘Stable Disease’ (SD; met at least once in an 8-week interval).
  • One patient (3.6%) showed ‘Partial Response’ (PR).
  • 18 of 28 (64.3%) evaluable patients showed ‘Clinical Benefit Rate’ defined as CBR=CR+PR+SD (with CR representing Complete Remission).

Sorafenib® (Bayer) was approved, based on the clinical data from the pivotal Phase 3 (SHARP) clinical trial1, as the first line therapy for naive HCC patients. The clinical data from that study showed median TTP of 5.5 months (95% CI 4.1-6.9 months), CBR of 43% and 71% SD by RECIST criteria1. Conversely, the clinical data from a phase 2 trial with Sorafenib in patients with advanced HCC, showed SD (33.6%), TTP of 4.2 months and median OS of 9.2 months2.

Regorafenib was approved, based on the clinical data from the pivotal Phase 3 (RESORCE) clinical trial3, as the second line therapy for sorafenib-resistant HCC patients. In this study, Regorafenib showed median PFS of 3.1 months (95% CI 2.8-4.2 months), median TTP of 3.2 months (95% CI 2.9-4.2 months) and disease control rate (DCR, similar to CBR) of 65% by mRECIST. On the other hand, the clinical data from a Phase 2 study in patients with intermediate and advanced HCC, Regorafenib showed median TTP of 4.3 months (95% CI 2.9-13.1 months), SD (69%) and PR was 3%4.

“The current therapies for HCC are often associated with severe toxicities, resulting in poor patient compliance. Hence, there is an immediate need for efficacious therapies that will not compromise patients’ quality of life. We believe that the overall safety profile of Milciclib is an important competitive advantage over existing therapies currently used for treating HCC” said Gabriele Cerrone, Chairman and founder of Tiziana Life Sciences.

“The positive clinical activity and tolerability data of Milciclib in Sorafenib-resistant and advanced HCC patients are very encouraging and provides affirmation for continued development of Milciclib, either as monotherapy or combination therapy” said Dr. Kunwar Shailubhai, CEO & CSO of Tiziana. “We reported last year at AASLD that Milciclib produced pronounced synergistic anti-HCC activity in combination with any one of the FDA approved tyrosine kinase inhibitor (TKI) class of drugs, including Sorafenib (Nexavar®), Regorafenib (Stivarga®), and Lenvatinib (Lenvima®)5. Thus, we believe that Milciclib in combination with any one of the TKI drugs has good potential to expand the Clinical Benefit Rate in HCC patients.”

Cited References

1. Llovet, J., Ricci, S., Mazzaferro, V., Hilgard, P., Gane, E., Blanc, J-F., de Oliveira, A., Santoro, A., Raoul, J-L, Forner, A., Schwartz, M., Porta, C., Zeuzem, S., Bolondi, L., Greten, T., Galle, P., Seitz, J-F., Borbatch, I., Haussinger, D., Giannaris, T., Shan, M., Moscovici, M., Voliotiz, D., and J. Bruix. (2008) Sorafenib in Advance Hepatocellular Carcinoma. N Engl. J Med. 359:378.

2. Abou-Alfa, G., Schwartz, L., Ricci., S., Amadori, D., Santoro, A., Figer, A. De Greve, J., Douillard, J-Y., Lathia, C., Schwartz, B., Taylor, I., Moscovici, M. and L. Saltz. (2006). Phase II Study of Sorafenib in Patients with Advanced Hepatocellular Carcinoma. J. Clin. Oncol. 24:4293.

3. Bruix, J, Qin, S., Merle, P., Granito, A., Huang, Y-H, Bodoky, G., Pracht, M., Yokosuka, O., Rosmorduc, O., Breder, V., Gerolami, R., Masi, G., Ross, P., Song, T., Bronowicki, J-P., Ollivier-Hourmand, I., Kudo, M., Cheng, A-L., Llovet, J.M., Finn, R., LeBerre, M-A., Baumhauer, A., Meinhardt, G. and Han, G. (2017)Regorafenib for patients with hepatocellular carcinoma who progressed on sorafenib treatment (RESORCE): a randomized, double-blind, placebo-controlled, phase 3 trial. Lancet 389: 56.

4. Bruix, J., Tak, W-Y., Gasbarrini, A., Santoro, A., Colombo, M., Lim, H-Y., Mazzaferro, V., Wiest, R., Reig, M., Wagner, A., and Bolondi, L.(2013) Regorafenib as Second-Line Therapy for Intermediate or Advanced Hepatocellular Carcinoma: Multicentre, Open-Label Phase II Safety Study. Eur.J. Cancer 49:3412.

5. Jindal, A., Palejwala, V. and Shailubhai, K. (2018). Oral treatment with milciclib either alone or in combination with sorafenib inhibited tumor growth in an orthotopic model of hepatocellular carcinoma. Hepatology 68 Number 1 (Suppl): 879A (Abstract 1543)

The person who arranged for the release of this announcement on behalf of the Company was Dr Kunwar Shailubhai, CEO & CSO of Tiziana.

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Forward-Looking Statements

Certain statements made in this announcement are forward-looking statements. These forward-looking statements are not historical facts but rather are based on the Company’s current expectations, estimates, and projections about its industry; its beliefs; and assumptions. Words such as ‘anticipates,’ ‘expects,’ ‘intends,’ ‘plans,’ ‘believes,’ ‘seeks,’ ‘estimates,’ and similar expressions are intended to identify forward-looking statements. These statements are not guarantees of future performance and are subject to known and unknown risks, uncertainties, and other factors, some of which are beyond the Company’s control, are difficult to predict, and could cause actual results to differ materially from those expressed or forecasted in the forward-looking statements. The Company cautions security holders and prospective security holders not to place undue reliance on these forward-looking statements, which reflect the view of the Company only as of the date of this announcement. The forward-looking statements made in this announcement relate only to events as of the date on which the statements are made. The Company will not undertake any obligation to release publicly any revisions or updates to these forward-looking statements to reflect events, circumstances, or unanticipated events occurring after the date of this announcement except as required by law or by any appropriate regulatory authority.

About HCC

HCC is the fifth most common cancer and the third highest cause of cancer mortality worldwide. The primary risk factor for HCC is hepatic cirrhosis. Between 2003 to 2012, rates of new liver cancer cases went up 38% according to the Centers for Disease Control and Prevention. Most HCC patients present with advanced disease and do not benefit from transplantation, surgical resection, or locoregional therapies. Sorafenib (standard of care) and Lenvatinib are approved in the United States and EU as first line-treatment for advanced HCC patients.

Regorafenib (Stivarga®) and Nivolumab (Opdivo®) are both approved by the FDA for second line treatment of advanced HCC. The complex multi-factorial etiology of HCC warrants a need for systemic therapies that target different signaling cascades to provide improved efficacy and safety for both naive patients presenting with unresectable, advanced stage and those who suffer recurrence after curative treatments (resection, ablation and transplantation).

About Milciclib

Milciclib (PHA-848125AC) is a small molecule inhibitor of several cyclin dependent kinases such as CDK1, CDK2, CDK4, CDK5 and CDK7. CDKs are serine threonine kinases that play crucial roles in progression of the cell cycle from G1 to S phase. Overexpression of CDKs and other downstream signaling pathways that regulate cell cycles have been frequently associated with development of resistance towards chemotherapies. In a Phase 1 study, oral treatment with Milciclib was well-tolerated and the drug showed promising clinical responses in patients with advanced solid malignancies such as in NSCLC, pancreatic and colon cancer, thymic carcinoma and thymoma. Additionally, milciclib met its primary endpoint in two separate Phase 2 multi-center clinical trials (CDKO-125A-006: 72 patients and CDKO-125A-007: 30 patients) in thymic carcinoma and thymoma patients.

About Tiziana Life Sciences

Tiziana Life Sciences plc is a biotechnology company that focuses on the discovery and development of novel molecules to treat human disease in oncology and immunology. In addition to Milciclib, the Company is also developing Foralumab for liver diseases. Foralumab is the only fully human anti-CD3 monoclonal antibody in clinical development in the world. This Phase 2 compound has potential application in a wide range of autoimmune and inflammatory diseases, such as nonalcoholic steatohepatitis (NASH), primary biliary cholangitis (PBS), ulcerative colitis, multiple sclerosis, type-1 diabetes (T1D), inflammatory bowel disease (IBD), psoriasis and rheumatoid arthritis, where modulation of a T-cell response is desirable.

View source version on businesswire.com: https:// www.businesswire. com /news/home/20190904005447/en/Contact:Tiziana Life Sciences plc 
Gabriele Cerrone, Chairman and founder 
+44 (0)20 7495 2379 

Cairn Financial Advisers LLP (Nominated adviser) 
Liam Murray / Jo Turner 
+44 (0)20 7213 0883 

Shore Capital (Broker) 
Andy Crossley / Antonio Bossi 
+44 (0)20 7601 6125

View Original Release on BusinessWire.com:
https://www.businesswire.com/news/home/20190904005447/en/Tiziana-Life-Sciences-Reports-Positive-Phase-2a

Pursuant to an agreement between Midam Ventures LLC and Tiziana Life Sciences plc (TLSA), Midam has been paid $150,000 by Tiziana Life Sciences plc (TLSA) for a period from August 22, 2019 to September 22, 2019. We may buy or sell additional shares of Tiziana Life Sciences plc (TLSA) in the open market at any time, including before, during or after the Website and Information, to provide public dissemination of favorable Information about Tiziana Life Sciences plc (TLSA). Full Disclaimer Click Here

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