Full Press Release Details
Tiziana Life Sciences plc
("Tiziana" or "the Company")
Interim Results for the Six Months Ended
Advancing pipeline of next generation
therapeutics and diagnostics for oncology and immune
diseases of high unmet need
London, 30 September 2019 - Tiziana
Life Sciences plc ("Tiziana", AIM: TILS, NASDAQ: TLSA), the research and clinical stage biotechnology company focussing
on proprietary drug candidates to treat cancer and autoimmune diseases, today announces its interim results for the six months
Highlights during the period:
RESEARCH & DEVELOPMENT
Foralumab is a fully human engineered anti-CD3
monoclonal antibody (mAB). It was in-licensed in December 2014 from Novimmune. In January 2016, Tiziana outlined its clinical development
plan for Foralumab with initial plans to evaluate the drug in two clinical indications: non-alcoholic steatohepatitis (NASH) and
inflammatory bowel disease (IBD).
As the only fully human engineered human
anti-CD3 mAB in clinical development, Foralumab has significant potential advantages such as a shorter treatment duration and reduced
immunogenicity. With completion of the intravenous dosing for our Phase 2a trial in Crohn's Disease, Foralumab's ability
to modulate T-cell response enables potential extension into a wide range of other autoimmune and inflammatory diseases, such as
GvHD, ulcerative colitis, multiple sclerosis, type-1 diabetes (T1D), inflammatory bowel disease (IBD), psoriasis and rheumatoid
Foralumab is being developed as both an
immunosuppressive and immunomodulatory agent, with therapeutic benefits of rendering T-cells unable to orchestrate an immune response
and induction of immune tolerance via maintenance of regulatory T-cells. There is further potential for Foralumab to be combined
with the Company's TZLS-501, a fully human anti-IL-6R mAB in development to target autoimmune and inflammatory diseases.
On 16 April, 2018, the Group entered into
an exclusive license agreement with The Brigham and Women's Hospital, Inc. relating to a novel formulation of Foralumab dosed
in a medical device for nasal administration. An investigational new drug application (IND) for the first-in-human evaluation of
the nasal administration of Foralumab in healthy volunteers was filed in the second quarter of 2018, and a Phase 1 trial to evaluate
biomarkers of immunomodulation of clinical responses was initiated in November 2018. The study was completed in September 2019
and Phase 1 clinical data demonstrated that nasally administered Foralumab, was well-tolerated at all doses. Importantly, the treatment
showed significant positive effects on the biomarkers for activation of mucosal immunity, which is capable of inducing site-targeted
immunomodulation to elicit anti-inflammatory effects.
Milciclib, Tiziana's lead small molecule
drug, was exclusively licenced in January 2015 from Nerviano Medical Sciences. Milciclib is an orally bioavailable, broad spectrum
inhibitor of Cyclin Dependent Kinases (CDKs): 1, 2, 4, 5 and 7 and Src family kinases. Cyclin dependent kinases are a family of
highly conserved enzymes that are involved in regulating the cell cycle. Src family kinases regulate cell growth and potential
transformation of normal cells to cancer cells. A unique feature of Milciclib is its ability to reduce microRNAs, miR- 221 and
miR-222, which silence gene expression. miR-221 and miR-222 promote the formation of blood vessels (angiogenesis) that are important
for the spread of cancer cells (metastasis). Levels of these microRNAs are consistently increased in HCC patients and may contribute
towards resistance to treatment with Sorafenib. As a result, the Group are investigating Milciclib both as a monotherapy and as
a combination treatment with Sorafenib.
To date, Milciclib has been studied in
a total of eight completed and ongoing Phase 1 and 2 clinical trials in 316 patients. In these trials, Milciclib was observed to
be well-tolerated and showed initial signals of anti-tumour action. Prior to in-licensing, Milciclib was granted orphan designation
by the European Commission and by the U.S. Food and Drug Administration ("FDA") for the treatment of malignant thymoma
and an aggressive form of thymic carcinoma in patients previously treated with chemotherapy. In two Phase 2a trials, CDKO-125a-006
and CDKO125a-007, Milciclib showed signs of slowing disease progression and acceptable safety.
The Group initiated a Phase 2a trial
(CDKO-125a-010) of Milciclib safety and tolerability as a single therapy in Sorafenib-resistant patients with HCC in the first
half of 2017. In May 2018, the Independent Data Monitor committee (IDMC) completed an interim analysis of tolerability data from
the first eleven treated patients and recommended expansion of the initial cohort to an additional 20 patients to complete the
trial enrolment, which was completed in December 2018. Top-line data is expected in the third quarter of 2019. This trial is conducted
in Sorafenib-resistant HCC patients. Typically, this population of patients have an advanced form of the disease with poor prognosis
and an average overall survival expectancy of 3-5 months.
In March 2019, the IDMC reviewed
safety data from patients as of February 26, 2019 and concluded that the administration of Milciclib to patients with advanced
HCC was not associated with unexpected signs or signals of toxicity. 28 out of 31 treated patients were evaluable, 14 completed
the 6-month duration study. The most frequent adverse events such as diarrhea,
ascites, nausea, fatigue, asthenia, fever, ataxia, headache, and rash were manageable. No drug-related deaths were recorded.
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).
Preclinical data presented at the AASLD
meeting in November 2018, demonstrated significant tumour reduction in an orthotopic mouse model of HCC following five weeks of
treatment with Milciclib (-20% reduction, 30mg/kg/day)), Sorafenib (-20% reduction, 20 mg/kg/day) and the combination of Milciclib
and Sorafenib (-38% reduction) relative to vehicle control.
PRE-CLINICAL PROGRAMMES
TZLS-501, formerly NI-1201
TZLS-501 is a fully human engineered mAb
targeting the interleukin-6 receptor (IL-6R). Tiziana Life Sciences licensed the intellectual property from Novimmune in January
2017. This fully human mAb has a unique mechanism of action that binds to both the membrane-bound and soluble forms of the IL-6R
resulting in lowering of circulating levels of IL-6 in the blood. Excessive production of IL-6 is regarded as a key driver of chronic
inflammation, associated with autoimmune diseases such as multiple myeloma, oncology indications and rheumatoid arthritis, and
the Group believes that TZLS-501 may have potential therapeutic value for these indications.
In preclinical studies, TZLS-501 demonstrated
the potential to overcome limitations of other IL-6 blocking pathway drugs. Compared to tocilizumab and sarilumab, while binding
to the membrane-bound IL-6R complex TZLS-501 has shown a higher affinity for the soluble IL-6 receptor as seen from the antibody
binding studies conducted in cell culture. TZLS-501 also demonstrated the potential to block or reduce IL-6 signalling in mouse
models of inflammation. The soluble form of IL-6 has been implicated to have a larger role in disease progression compared to the
membrane-bound form. (Kallen, K.J. (2002). "The role of transsignalling via the agonistic soluble IL-6 receptor in human
diseases". Biochimica et Biophysica Acta. 1592 (3): 323-343.).
StemPrintER is a multi-gene signature assay
intended for use in patients diagnosed with estrogen-receptor positive ER+/HER2 negative breast cancers. The Group believes this
in-vitro prognostic test will be used in conjunction with clinical evaluation to identify those patients at increased risk for
early and/or late metastasis.
The Company continues to carefully manage
its working capital position and continues the process, as referred to below, to seek to raise further funds through the issue
of ADSs through a United States Offering as well as through private placements.
Highlights post period:
| 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 0880 |
| Shore Capital (Broker) Antonio Bossi / Fiona Conroy | +44 (0)20 7408 4050 |
About Tiziana Life Sciences
Tiziana Life Sciences plc
is a UK biotechnology company that focuses on the discovery and development of novel molecules that treat human disease in oncology
The Company is focused
on its lead compound, milciclib, a molecule which blocks the action of specific enzymes called cyclin-dependent kinases (CDK) involved
in cell division as well as a number of other protein kinases. Milciclib is currently completing phase II clinical trials for epithelial
thymic carcinoma and/or thymoma in patients previously treated with chemotherapy and has filed an IND to enroll patients in an
exploratory trial in Hepatocellular Carcinoma (HCC) in EU.
in clinical development of foralumab. We believe foralumab is the only fully human anti-human CD3 antibody in clinical development
in the world. This compound has potential application in a wide range of autoimmune and inflammatory diseases, such as NASH, primary