International Stem Cell Stock Price, News & Analysis

International Stem Cell Corporation (ISCO) is a California-based clinical stage biotechnology company that trades over-the-counter under the symbol ISCO. The company is focused on the therapeutic applications of human parthenogenetic stem cells (hpSCs) and on the development and commercialization of cell-based research and cosmetic products, as described in its public news releases.

ISCO’s core technology is parthenogenesis, a process that results in the creation of pluripotent human stem cells from unfertilized oocytes (eggs). According to the company, these hpSCs avoid ethical issues associated with the use or destruction of viable human embryos. ISCO reports that its scientists have created a parthenogenetic, homozygous stem cell line designed to be a source of therapeutic cells for large numbers of individuals of differing genders, ages and racial backgrounds, with the goal of minimizing immune rejection after transplantation. The company states that hpSCs offer the potential to create a stem cell bank it refers to as UniStemCell™.

Business model and operations

International Stem Cell Corporation combines a therapeutic development program with revenue-generating biomedical and cosmetic product lines. The company describes itself as a clinical stage biotechnology business developing stem cell-based therapies and biomedical products. In parallel with its therapeutic work, ISCO reports product sales generated through two wholly owned subsidiaries: Lifeline Cell Technology and Lifeline Skin Care.

Through Lifeline Cell Technology, ISCO states that it produces and markets specialized cells and growth media for therapeutic research worldwide. Through Lifeline Skin Care, the company reports that it develops and sells stem cell-based skin care products. Consolidated financial statements in company news releases show that product sales from these subsidiaries contribute to ISCO’s revenues, with combined operating income from the two subsidiaries specifically highlighted in multiple year-end and quarterly updates.

Therapeutic focus and ISC-hpNSC® program

A central element of ISCO’s therapeutic pipeline is its proprietary candidate ISC-hpNSC®, which the company describes as a highly pure population of neural stem cells derived from human parthenogenetic stem cells. ISCO states that ISC-hpNSC® is manufactured as a suspension of clinical grade cells under cGMP conditions and is subjected to quality control measures intended to ensure it is free of microbial and viral contaminants.

ISCO has reported on a dose-escalating Phase 1 clinical trial (ClinicalTrials.gov Identifier: NCT02452723) evaluating the safety, tolerability and preliminary efficacy of ISC-hpNSC® for the treatment of Parkinson’s disease. In its news releases, the company notes that patients with Parkinson’s disease received intracranial transplantation of ISC-hpNSC® and were followed with neurological assessments and imaging. The company has disclosed that the therapy was considered safe in the trial based on the safety data reviewed, and it has described observations of preliminary efficacy signals, including changes in measures such as OFF-Time, ON-Time without dyskinesia, and Parkinson’s disease-specific quality of life scores compared to baseline.

ISCO has also referenced preclinical studies in rodents and non-human primates, reporting that administration of ISC-hpNSC® was associated with improvement in Parkinson’s disease symptoms and increases in brain dopamine levels in those models. The company states that ISC-hpNSC® provides neurotrophic support and neuroregeneration to dopaminergic neurons and that, in its preclinical work, the therapy was safe, well tolerated and did not cause adverse events such as dyskinesia, systemic toxicity or tumors.

Stem cell platform and UniStemCell™ concept

International Stem Cell Corporation emphasizes its hpSC platform as the foundation for both its therapeutic and commercial activities. The company explains that parthenogenetic stem cells are derived from unfertilized oocytes and are pluripotent, meaning they have the capacity to differentiate into various cell types. ISCO has stated that its parthenogenetic, homozygous stem cell line is designed to serve as a source of therapeutic cells for many individuals with reduced risk of immune rejection.

Based on these characteristics, ISCO has described the potential to establish what it calls the UniStemCell™ bank. In its public communications, the company presents this concept as a stem cell bank that could support a range of therapeutic applications by providing compatible cell lines derived from hpSCs. This platform underpins its work in neurological indications such as Parkinson’s disease, and also supports its commercial activities in research products and skin care.

Subsidiaries: Lifeline Cell Technology and Lifeline Skin Care

ISCO’s news releases identify two wholly owned subsidiaries that generate product sales:

• Lifeline Cell Technology – described as producing and marketing specialized cells and growth media for therapeutic research worldwide. Financial disclosures in company updates highlight operating income from this subsidiary as part of ISCO’s consolidated results.
• Lifeline Skin Care – described as offering stem cell-based skin care products. The company includes this subsidiary when reporting combined operating income from its revenue-generating units.

These subsidiaries provide a commercial channel for ISCO’s cell-based technologies and contribute to the company’s product sales, as reflected in its consolidated statements of operations.

Clinical stage biotechnology profile

International Stem Cell Corporation characterizes itself as a clinical stage biotechnology company, indicating that it is engaged in human clinical testing of its lead therapeutic candidate while also conducting ongoing research and development. The company’s public disclosures describe a dose-escalation Phase 1 trial in Parkinson’s disease, with patients monitored over multiple years following intracranial transplantation of ISC-hpNSC® and evaluated using neurological rating scales and imaging.

In addition to its clinical and preclinical work, ISCO’s financial statements in its news releases show product sales, cost of sales, research and development expenses, selling and marketing expenses, and general and administrative expenses. The company also reports on items such as related party notes payable and redeemable convertible preferred stock in its consolidated balance sheets.

Corporate and regulatory context

International Stem Cell Corporation files reports with the U.S. Securities and Exchange Commission (SEC), including Forms 8-K describing material events. For example, an 8-K filing reports on an annual meeting of stockholders where directors were elected and advisory votes on executive compensation and the frequency of such votes were held. Another 8-K describes an agreement to extend the maturity date of a loan from a related party, including the principal amount, interest rate and revised maturity date.

These filings illustrate aspects of ISCO’s capital structure and governance, including the presence of Series D redeemable convertible preferred stock and non-redeemable convertible preferred stock, as well as related party financing arrangements. The company’s SEC disclosures also indicate that it does not have securities registered under Section 12(b) of the Exchange Act on a national securities exchange, with the relevant tables listing “None” for exchange-traded classes.

Stock and investor information

ISCO’s news releases identify the company’s shares as trading on OTC markets under the symbol ISCO, with references such as OTCQB or OTC PINK in different periods. The company’s consolidated financial statements in those releases present common stock and preferred stock share counts, additional paid-in capital and accumulated deficit, resulting in a reported stockholders’ deficit.

International Stem Cell Corporation regularly issues updates that combine business developments with financial results, including product sales and operating income from its subsidiaries, research and development spending, and net loss. These communications are aimed at stockholders and other stakeholders interested in the company’s progress in stem cell-based therapies and its commercial biomedical and cosmetic product lines.