Arcturus Therapeutics

Last updated
Arcturus Therapeutics Holdings Inc.
Company type Public
Nasdaq:  ARCT
Industry Pharmaceutical industry
Founded2013;11 years ago (2013)
FounderJoseph Payne and Pad Chivukula
Headquarters San Diego, California, US
Key people
ProductsARCT-810 for treatment of OTCD; received FDA Orphan Drug Status on 27 July 2019; Phase 1 Clinical Trials in Healthy Volunteers Initiated on 05 June 2020, ARCT-021 Vaccine for COVID-19; Phase 1/2 Initiated 22 July 2020, Phase 2 Initiated 9 January 2021
RevenueIncrease2.svg $21 Million(2019) [1]
Number of employees
124
Website www.arcturusrx.com

Arcturus Therapeutics Holdings Inc. is an American RNA medicines biotechnology company focused on the discovery, development and commercialization of therapeutics for rare diseases and infectious diseases. Arcturus has developed proprietary lipid nanoparticle RNA therapeutics for nucleic acid medicines including small interfering RNA (siRNA), messenger RNA (mRNA), gene editing RNA, DNA, antisense oligonucleotides, and microRNA.

Contents

The company develops RNA therapeutics for the treatment of rare diseases such as ornithine transcarbamylase deficiency, and respiratory diseases such as cystic fibrosis. As of 2021, vaccine medicines include a vaccine candidate for COVID-19 and an influenza vaccine in the preclinical development phase. [2]

History

Founded in 2013 by Joseph Payne and Pad Chivukula, Arcturus Therapeutics is headquartered in San Diego, California, USA. Initially, they developed a proprietary lipid nanoparticle delivery system called Lunar, able to safely deliver therapeutic RNA or DNA to target cells inside a patient's body. [3]

In September 2017, Arcturus Therapeutics merged with Alcobra Ltd., an Israeli pharmaceutical company. [4] In February of 2018, Joseph Payne was dismissed as president and CEO by the Arcturus Therapeutics board of directors at that time. [5] In the aftermath, as the largest shareholder, Joseph Payne filed formal requests to hold a meeting of shareholders for the purpose of selecting new members to the Arcturus Therapeutics board of directors. Under applicable law, Arcturus’ board must have honored Payne’s request by establishing a meeting date and convening said meeting within a clearly defined timeframe. Rather than adhering to the law, the Board ignored the applicable deadlines and opted to postpone the shareholder meeting indefinitely. [6] [7] [8] Joseph Payne subsequently filed legal proceedings with the Israeli Court which ruled in favor of upholding shareholder rights by sanctioning the meeting of shareholders. [9]

In April of 2018, the Arcturus Therapeutics board of directors at the time filed their own complaint against Joseph Payne and his nominees to the board. [10] In May of 2018, a legal settlement was agreed upon: 4 new directors were appointed to the board (Peter Farrell, Andrew Sassine, James Barlow and Magda Marquet) resulting in the resignation of Stuart Collinson, Daniel Geffken, David Shapiro, and Craig Willett. Other key terms of the settlement agreement included mutual releases of all parties and the agreement by Arcturus Therapeutics and Joseph Payne to terminate all pending litigation. [11]

Products

Lunar

Lunar is a lipid nanoparticle drug delivery system which targets specific cells inside the body to deliver a payload of RNA into the cell. [12] [13] Once release of the RNA into the cell occurs, the normal translational machinery of the cell can interact with the RNA to make a functional protein with a therapeutic effect. Prior to the Lunar technique, efficient in vivo delivery has also been challenging because existing lipid nanoparticles at the time could cause liver damage and elicit a strong immune response. [14]

This lipid nanoparticle delivery system has been used to deliver ornithine transcarbamylase messenger RNA to liver cells in order to treat citrin deficiency and ornithine transcarbamylase deficiency. [15] OTCD is the most common urea cycle disorder, which impacts an individual's ability to remove toxic waste products from the body. In collaboration with the Salk Institute for Biological Studies in La Jolla, California, successful delivery of a Factor IX messenger RNA to the liver was reported, which suggested viability of the approach to potentially treat diseases requiring protein replacement. [14] Researchers at the MD Anderson Cancer Center also showed the application of mRNA delivered in nanoparticles using the Lunar platform for the treatment of malignancy in intracerebral glioma. [16]

In 2019, a drug named ARCT-810 which uses Lunar, received FDA orphan drug status for treating ornithine transcarbamylase deficiency. [17] The orphan drug designation is granted to drugs capable of treating rare diseases that affect less than 200,000 people in the United States, and grants seven years of marketing exclusivity after approval. [18] On April 13, 2020, it was announced that the company's investigational new drug application for Phase 1b study in patients with OTCD was allowed to proceed by the U.S. FDA. [19] Clinical trials in patients began in June 2020. [20]

Lunar-COV19

ARCT-021 and Starr

In response to the COVID-19 pandemic, Arcturus partnered with Duke–NUS Medical School to develop a COVID-19 vaccine using a combination of self-replicating mRNA with a Lunar delivery platform which increases the level and duration of expression of a therapeutic protein). [21] The company also partnered with Catalent and Recipharm, contract development and manufacturing organizations, to manufacture multiple batches of Arcturus' COVID-19 mRNA vaccine candidate. [22] [23] Lunar-COV19 clinical trials in healthy volunteers began in July 2020. [24] Phase 2 clinical trials were approved in the United States and Singapore by the FDA and HSA, respectively in December 2020. [25]

Next-generations

On 2 August 2021, ARCT-154 started a clinical trial in Vietnam for next-generation development. [26] The next day, the firm announced that the application of approval for the clinical trial Phase I/II in Singapore called ARCT-165. Also application of ARCT-154 for phase I/II. [2]

Other projects

Lunar-CF is a project in collaboration with the Cystic Fibrosis Foundation to treat cystic fibrosis. [27]

Lunar-FLU is a wholly owned program to protect against the influenza virus. Arcturus is combining its self-replicating mRNA Starr technology with Lunar to develop a prophylactic vaccine against influenza.

Lunar-GSD is a project in collaboration with Ultragenyx to treat glycogen storage disease type III. [28]

Lunar-Rare is a project in collaboration with Ultragenyx to develop therapeutic candidates for rare disease targets.

Lunar-HBV is a project in collaboration with Janssen to develop medicines for the treatment of hepatitis B virus infection. [29]

Lunar-NASH is a project in collaboration with Takeda to develop medicines for non-alcoholic steatohepatitis (NASH) and other gastrointestinal disorders. [30]

Lunar-RPL is a project in collaboration with Synthetic Genomics to develop improved technology for vaccines and therapeutics. [31]

Lunar-AH is a project in collaboration with Synthetic Genomics to develop infectious disease prophylactic vaccines.

Related Research Articles

<span class="mw-page-title-main">Ornithine transcarbamylase deficiency</span> Medical condition

Ornithine transcarbamylase deficiency also known as OTC deficiency is the most common urea cycle disorder in humans. Ornithine transcarbamylase, the defective enzyme in this disorder, is the final enzyme in the proximal portion of the urea cycle, responsible for converting carbamoyl phosphate and ornithine into citrulline. OTC deficiency is inherited in an X-linked recessive manner, meaning males are more commonly affected than females.

<span class="mw-page-title-main">Solid lipid nanoparticle</span> Novel drug delivery system

Lipid nanoparticles (LNPs) are very small spherical particles composed of lipids. They are a novel pharmaceutical drug delivery system, and a novel pharmaceutical formulation. Using LNPs for drug delivery was first approved in 2018 for the siRNA drug Onpattro. LNPs became more widely known in late 2020, as some COVID-19 vaccines that use RNA vaccine technology coat the fragile mRNA strands with PEGylated lipid nanoparticles as their delivery vehicle.

<span class="mw-page-title-main">Plus Therapeutics</span> U.S. healthcare company

Plus Therapeutics, Inc. is a clinical-stage pharmaceutical company developing innovative, targeted radiotherapeutics for adults and children with rare and difficult-to-treat cancers. The company is headquartered in Austin, Texas, United States.

<span class="mw-page-title-main">Moderna</span> American biotechnology company

Moderna, Inc. is an American pharmaceutical and biotechnology company based in Cambridge, Massachusetts, that focuses on RNA therapeutics, primarily mRNA vaccines. These vaccines use a copy of a molecule called messenger RNA (mRNA) to carry instructions for proteins to produce an immune response. The company's name is derived from the terms "modified", "RNA", and "modern".

Alnylam Pharmaceuticals, Inc. is an American biopharmaceutical company focused on the discovery, development and commercialization of RNA interference (RNAi) therapeutics for genetically defined diseases. The company was founded in 2002 and is headquartered in Cambridge, Massachusetts. In 2016, Forbes included the company on its "100 Most Innovative Growth Companies" list.

<span class="mw-page-title-main">Intellia Therapeutics</span> American biotechnology company

Intellia Therapeutics, Inc. is an American clinical-stage biotechnology company focused on developing novel, potentially curative therapeutics leveraging CRISPR-based technologies. The company's in vivo programs use intravenously administered CRISPR as the therapy, in which the company's proprietary delivery technology enables highly precise editing of disease-causing genes directly within specific target tissues. Intellia's ex vivo programs use CRISPR to create the therapy by using engineered human cells to treat cancer and autoimmune diseases.

mRNA vaccine Type of vaccine

An mRNAvaccine is a type of vaccine that uses a copy of a molecule called messenger RNA (mRNA) to produce an immune response. The vaccine delivers molecules of antigen-encoding mRNA into cells, which use the designed mRNA as a blueprint to build foreign protein that would normally be produced by a pathogen or by a cancer cell. These protein molecules stimulate an adaptive immune response that teaches the body to identify and destroy the corresponding pathogen or cancer cells. The mRNA is delivered by a co-formulation of the RNA encapsulated in lipid nanoparticles that protect the RNA strands and help their absorption into the cells.

<span class="mw-page-title-main">Vaxart</span> American biotechnology company

Vaxart, Inc. is an American biotechnology company focused on the discovery, development, and commercialization of oral recombinant vaccines administered using temperature-stable tablets that can be stored and shipped without refrigeration, eliminating the need for needle injection. Its development programs for oral vaccine delivery include prophylactic, enteric-coated tablet vaccines for inhibiting norovirus, seasonal influenza, respiratory syncytial virus, and human papillomavirus. It was founded in 2004 by Sean Tucker. Originally incorporated as West Coast Biologicals, Inc. in California in 2004, the company later changed its name to Vaxart, Inc. in July 2007, after reincorporating in Delaware. A significant development in the company's history was the reverse merger with Aviragen Therapeutics, Inc. on February 13, 2018, which led to Vaxart becoming a wholly-owned subsidiary of Aviragen. Post-merger, the company continued as Vaxart, Inc.

<span class="mw-page-title-main">ALC-0315</span> Chemical compound

ALC-0315 is a synthetic lipid. A colorless oily material, it has attracted attention as a component of the SARS-CoV-2 vaccine, BNT162b2, from BioNTech and Pfizer. Specifically, it is one of four components that form lipid nanoparticles (LNPs), which encapsulate and protect the otherwise fragile mRNA that is the active ingredient in these drugs. These nanoparticles promote the uptake of therapeutically effective nucleic acids such as oligonucleotides or mRNA both in vitro and in vivo.

<span class="mw-page-title-main">Ultragenyx</span> American biopharmaceutical company

Ultragenyx Pharmaceutical Inc. is an American biopharmaceutical company involved in the research and development of novel products for treatment of rare and ultra-rare genetic diseases for which there are typically no approved treatments and high unmet medical need. The company works with multiple drug modalities including biologics, small molecule, gene therapies, and ASO and mRNAs in the disease categories of bone, endocrine, metabolic, muscle and CNS diseases.

SM-102 is a synthetic amino lipid which is used in combination with other lipids to form lipid nanoparticles. These are used for the delivery of mRNA-based vaccines, and in particular SM-102 forms part of the drug delivery system for the Moderna COVID-19 vaccine.

<span class="mw-page-title-main">ARCT-021</span> Vaccine candidate against COVID-19

ARCT-021, also known as LUNAR-COV19, is a COVID-19 vaccine candidate developed by Arcturus Therapeutics.

<span class="mw-page-title-main">Walvax COVID-19 vaccine</span> Vaccine candidate against COVID-19

AWcorna, originally termed ARCoV and also known as the Walvax COVID-19 vaccine, is an mRNA COVID-19 vaccine developed by Walvax Biotechnology, Suzhou Abogen Biosciences, and the PLA Academy of Military Science. In contrast to other mRNA COVID vaccines, such as those by Pfizer-BioNtech and Moderna, this vaccine primarily targets the Sars-CoV-2 receptor-binding domain of the spike protein, rather than the entire spike protein. It is approved for Phase III trials in China, Mexico, Indonesia, and Nepal.

<span class="mw-page-title-main">ARCT-154</span> Vaccine candidate against COVID-19

ARCT-154, also known as VBC-COV19-154 in Vietnam, is a COVID-19 vaccine candidate developed by Arcturus Therapeutics. For its development, Arcturus collaborated with Vinbiocare, a Vietnamese company, for support with clinical trials and manufacturing. The vaccine was authorised in Japan in November 2023.

<span class="mw-page-title-main">COVID-19 vaccine clinical research</span> Clinical research to establish the characteristics of COVID-19 vaccines

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Kathryn Ann Whitehead is an American chemical engineer who is a professor at Carnegie Mellon University. Her research considers the development of nanomaterial-based drug delivery systems for gene therapy, oral macromolecular delivery systems, and maternal and infant therapeutics. She is an elected Fellow of the American Institute for Medical and Biological Engineering in 2021 and Fellow of the Controlled Release Society.

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Acuitas Therapeutics Inc. is a Canadian biotechnology company based in Vancouver, British Columbia. The company was established in February 2009 to specialize in the development of delivery systems for nucleic acid therapeutics based on lipid nanoparticle (LNP) technology, a key component of the mRNA vaccines deployed for COVID-19.

Self-amplifying RNA (saRNA), also termed self-replicating RNA (srRNA), is a type of mRNA molecule engineered to replicate itself within host cells, enhancing protein expression and boosting the immune response, making it a promising tool for vaccines and other therapeutic applications. As a "next-generation" mRNA, saRNA is designed to achieve greater protein expression with a reduced dose compared to conventional mRNA. Unlike conventional mRNA, which has a short half-life and limited ability to express proteins for an extended time, saRNA can sustain protein expression for longer periods. saRNA are based on positive single stranded RNA viruses most commonly alphaviruses such as Venezuelan equine encephalitis virus.

References

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