Full Press Release Details
Akari Therapeutics' Nomacopan Demonstrates Positive
Early Safety and Efficacy in Phase I/II Clinical Study in Moderate-to-Severe Atopic Keraconjunctivitis (AKC)
NEW YORK and LONDON, June 19, 2019 - Akari Therapeutics,
Plc (Nasdaq: AKTX), a biopharmaceutical company focused on innovative therapeutics to treat orphan autoimmune and inflammatory
diseases where the complement and/or leukotriene systems are implicated, today announced positive results for Part A of TRACKER,
a Phase I/II clinical trial evaluating the safety and efficacy of topical nomacopan in moderate to severe atopic keratoconjunctivitis
AKC is a serious corneal and eye surface disease which frequently
progresses to visual impairment. Currently, there are no approved drugs and current standard of care is based on topical and systemic
immunosuppression. The current treatments are considered sub-optimal because they frequently fail to prevent progression of the
disease and the topical drops are often associated with a high incidence of pain and irritation.
"The results from the first three patients included in
Part A exceeded our expectations. The rapid response and the overall reduction of 55% in the composite clinical score by Day 56
despite the patients starting treatment while on long term maximal cyclosporin, is very encouraging in AKC which has no approved
therapy and limited effective treatment options," said Clive Richardson, Interim Chief Executive Officer of Akari Therapeutics.
"AKC is often associated with severe dry eye disease (DED) and as such may be a potential gateway into the broader and significant
multi-billion dry eye disease market".
This early data in AKC further supports the therapeutic efficacy
of nomacopan, a dual acting complement C5 and LTB4 inhibitor, observed in initial clinical data for the treatment of bullous pemphigoid
and thrombotic microangiopathy after haematopoietic stem cell transplantation which, like AKC, have no approved treatments.
In Part A of the Phase I/II study, three patients were treated
with twice daily nomacopan eye drops in addition to standard of care for up to 56 days in order to establish the safety and tolerability
of the drops in preparation for Part B, a randomized, double-masked placebo-controlled comparison in 16 patients. Of the three
patients enrolled in the study, two completed 56 days of treatment and one completed 14 days and then withdrew for reasons unrelated
to the study treatment. All patients, who were on the moderate/severe end of the AKC spectrum, had been on maximal topical cyclosporin,
the standard of care, for at least three months prior to entry and continued on it during the trial. In the event of further disease
progression, the next incremental step would normally have been systemic immunosuppression.
The drops were found to be comfortable and well-tolerated throughout
the trial for all three patients. There were no serious adverse events (SAE) reported. On that basis, the independent safety committee
has now given permission for the trial to proceed to Part B and recruitment has commenced.
The secondary objective of the study was to determine efficacy,
assessed by a standard composite scoring system [Akpek E.K. et al. Ophthalmology 2004 (III,3)] consisting of five symptoms which
were patient reported, and six signs of ocular damage which were graded by the clinician on a direct slit-lamp examination of the
eye. Each sign or symptom was graded 0 to 3, where 0 = normal or absent and 3 is the most severe, such that with 11 measures the
overall maximum severity score was 33.
There was an overall improvement in clinical score of 55% composed
of an improvement in symptoms of 62% and signs of 52% by Day 56. Symptoms consist of subjective occurrences such as discomfort
and itching. Signs are objective manifestations of disease, such as conjunctival redness, growth of new blood vessels into the
cornea and microscopic damage to the corneal surface (punctate keratitis).
In addition, post-instillation comfort was reported by patients
as excellent with high levels of acceptance of eye drops, which were described as comfortable and refreshing.
Mr Sajjad Ahmad, consultant ophthalmic surgeon at Moorfields
Eye Hospital and the Principal Investigator in this study said: "Part A of the trial shows that nomacopan is well tolerated
and preliminary efficacy data is encouraging. We are hopeful that nomacopan will fill an unmet clinical need in ocular surface
About Akari Therapeutics
Akari is a biopharmaceutical company focused on developing inhibitors
of acute and chronic inflammation, specifically for the treatment of rare and orphan diseases, in particular those where the complement
(C5) or leukotriene (LTB4) systems, or both complement and leukotrienes together, play a primary role in disease progression. Akari's
lead drug candidate, nomacopan (formerly known as Coversin), is a C5 complement inhibitor that also independently and specifically
inhibits leukotriene B4 (LTB4) activity. Nomacopan is currently being clinically evaluated in four indications: bullous pemphigoid
(BP), atopic keratoconjunctivitis (AKC), thrombotic microangiopathy (TMA), and paroxysmal nocturnal hemoglobinuria (PNH). Akari
believes that the dual action of nomacopan on both C5 and LTB4 may be beneficial in AKC and BP. Akari is also developing other
tick derived proteins, including longer acting versions.
Cautionary Note Regarding Forward-Looking Statements
Certain statements in this press release constitute "forward-looking
statements" within the meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements
reflect our current views about our plans, intentions, expectations, strategies and prospects, which are based on the information
currently available to us and on assumptions we have made. Although we believe that our plans, intentions, expectations, strategies
and prospects as reflected in or suggested by those forward-looking statements are reasonable, we can give no assurance that the
plans, intentions, expectations or strategies will be attained or achieved. Furthermore, actual results may differ materially from
those described in the forward-looking statements and will be affected by a variety of risks and factors that are beyond our control.
Such risks and uncertainties for our company include, but are not limited to: needs for additional capital to fund our operations,
our ability to continue as a going concern; uncertainties of cash flows and inability to meet working capital needs; an inability
or delay in obtaining required regulatory approvals for nomacopan and any other product candidates, which may result in unexpected
cost expenditures; our ability to obtain orphan drug designation in additional indications; risks inherent in drug development
in general; uncertainties in obtaining successful clinical results for nomacopan and any other product candidates and unexpected
costs that may result therefrom; difficulties enrolling patients in our clinical trials; failure to realize any value of nomacopan
and any other product candidates developed and being developed in light of inherent risks and difficulties involved in successfully
bringing product candidates to market; inability to develop new product candidates and support existing product candidates; the
approval by the FDA and EMA and any other similar foreign regulatory authorities of other competing or superior products brought
to market; risks resulting from unforeseen side effects; risk that the market for nomacopan may not be as large as expected; risks
associated with the departure of our former Chief Executive Officers and other executive officers; risks associated with the SEC
investigation; inability to obtain, maintain and enforce patents and other intellectual property rights or the unexpected costs
associated with such enforcement or litigation; inability to obtain and maintain commercial manufacturing arrangements with third
party manufacturers or establish commercial scale manufacturing capabilities; the inability to timely source adequate supply of
our active pharmaceutical ingredients from third party manufacturers on whom the company depends; unexpected cost increases and
pricing pressures and risks and other risk factors detailed in our public filings with the U.S. Securities and Exchange Commission,
including our most recently filed Annual Report on Form 20-F filed with the SEC. Except as otherwise noted, these forward-looking
statements speak only as of the date of this press release and we undertake no obligation to update or revise any of these statements
to reflect events or circumstances occurring after this press release. We caution investors not to place considerable reliance
on the forward-looking statements contained in this press release.
For more information
Sukaina Virji / Nicholas Brown / Lizzie Seeley
Consilium Strategic Communications