Quarterly report pursuant to Section 13 or 15(d)

NATURE OF BUSINESS

v3.22.0.1
NATURE OF BUSINESS
9 Months Ended
Jan. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
NATURE OF BUSINESS

NOTE 1 – NATURE OF BUSINESS

 

PharmaCyte Biotech, Inc. (“PharmaCyte” or “Company”) is a biotechnology company focused on developing cellular therapies for cancer and diabetes based upon a proprietary cellulose-based live cell encapsulation technology known as “Cell-in-a-Box®”. The Cell-in-a-Box® technology is intended to be used as a platform upon which therapies for several types of cancer, including locally advanced, inoperable pancreatic cancer (“LAPC”) will be developed. The current generation of the Company’s product candidate is referred to as “CypCaps™”. On September 1, 2020, the Company submitted an Investigational New Drug Application (“IND”) to the United States Food and Drug Administration (“FDA”) for a planned Phase 2b clinical trial in LAPC. On October 1, 2020, the Company received notice from the FDA that it had placed the IND on clinical hold. On October 30, 2020, the FDA sent a letter to the Company setting forth the reasons for the clinical hold and specific guidance on what the Company must do to have the clinical hold lifted. To lift the clinical hold, the FDA has informed the Company that it needs to conduct several additional preclinical studies. The FDA also requested additional information regarding several topics, including DNA sequencing data, manufacturing information and product release specifications. The Company is also in the process of conducting these studies and gathering additional information to submit to the FDA. See “The Investigational New Drug Application and the Clinical Hold” below.

 

The Cell-in-a-Box® encapsulation technology potentially enables genetically engineered live human cells to be used as a means to produce various biologically active molecules. The technology is intended to result in the formation of pinhead sized cellulose-based porous capsules in which genetically modified live human cells can be encapsulated and maintained. In a laboratory setting, this proprietary live cell encapsulation technology has been shown to create a micro-environment in which encapsulated cells survive and flourish. They are protected from environmental challenges, such as the sheer forces associated with bioreactors and passage through catheters and needles. The Company believes that this enables greater cell growth and production of the active molecules. The capsules are largely composed of cellulose (cotton) and are bio inert.

 

The Company is developing therapies for pancreatic and other solid cancerous tumors by using genetically engineered live human cells that it believes are capable of converting a cancer prodrug into its cancer-killing form. The Company encapsulates those cells using the Cell-in-a-Box® technology and places those capsules in the body as close as possible to the tumor. In this way, the Company believes that when a cancer prodrug is administered to a patient with a particular type of cancer that may be affected by the prodrug the killing of the patient’s cancerous tumor may be optimized.

 

In addition, the Company has been exploring ways to delay the production and accumulation of malignant ascites that results from many types of abdominal cancerous tumors. Malignant ascites is secreted by abdominal cancerous tumors into the abdomen after the tumors have reached a certain stage of growth. This fluid contains cancer cells that can seed and form new tumors throughout the abdomen. This fluid accumulates in the abdominal cavity, causing swelling of the abdomen, severe breathing difficulties and extreme pain. On November 30, 2021, the Company announced the commencement of a pre-clinical study to determine if the treatment the Company uses for LAPC can also delay the rate of production and accumulation of malignant ascites.

 

The Company has also been developing a potential therapy for Type 1 diabetes and insulin-dependent Type 2 diabetes. The Company’s product candidate for the treatment of diabetes consists of encapsulated genetically modified insulin-producing cells. The encapsulation will be done using the Cell-in-a-Box® technology. Implanting these cells in the body is designed to function as a bio-artificial pancreas for purposes of insulin production.

  

The Company has also been considering ways to exploit the benefits of the Cell-in-a-Box® technology to develop therapies for cancer that involve prodrugs based upon certain constituents of the Cannabis plant (“Cannabis Program”); these constituents are of the class of compounds known as “cannabinoids”.

 

Until: (i) the FDA allows the Company to commence a clinical trial in LAPC described in its IND for which the FDA has placed a clinical hold; and (ii) the Company validates its Cell-in-a-Box® encapsulation technology in its planned Phase 2b clinical trial in LAPC, the Company is not spending any further resources developing the Cannabis Program.

 

The Investigational New Drug Application and the Clinical Hold

 

On September 1, 2020, the Company submitted an IND to the FDA for a planned Phase 2b clinical trial in LAPC. Shortly thereafter, the Company received Information Requests from the FDA related to the IND. The Company timely responded to all Information Requests.

  

On October 1, 2020, the Company received notice that the FDA had placed the Company’s IND on clinical hold.

 

On October 30, 2020, the FDA sent a letter to the Company setting forth the reasons for the clinical hold and providing specific guidance on what the Company must do to have the clinical hold lifted.

 

In order to address the clinical hold, the FDA has requested that the Company:

 

  · Provide additional sequencing data and genetic stability studies;

 

  · Conduct a stability study on the final formulated product candidate as well as the cells from PharmaCyte’s Master Cell Bank (“MCB”);

 

  · Evaluate the compatibility of the delivery devices (the prefilled syringe and the microcatheter used to implant the CypCaps) with PharmaCyte’s product candidate;

 

  · Provide additional detailed description of the manufacturing process of PharmaCyte’s product candidate;

 

  · Provide additional product release specifications for PharmaCyte’s encapsulated cells;

 

  · Demonstrate comparability between the 1st and 2nd generation products and ensure adequate and consistent product performance and safety between the two generations of PharmaCyte’s product candidate;

 

  · Conduct a biocompatibility assessment using the final finished capsules after the entire product candidate manufacturing process (but without cells);

 

  · Address insufficiencies in Chemistry, Manufacturing and Controls information in the cross-referenced Drug Master File;

 

  · Conduct an additional nonclinical study in a large animal (such as a pig) to assess the safety, activity, and distribution of the product candidate; and

 

  · Revise the Investigators Brochure to include any additional preclinical studies conducted in response to the clinical hold and remove any statements not supported by the data generated by PharmaCyte.

  

The FDA also requested that the Company address the following issues as an amendment to the IND:

 

  · Provide a Certificate of Analysis for pc3/2B1 plasmid that includes tests for assessing purity, safety, and potency;

 

  · Perform qualification studies for the drug substance filling step to ensure that the product candidate remains sterile and stable during the filling process;

 

  · Submit an updated batch analysis for the product candidate for the specific lot that will be used for manufacturing all future product candidates;

 

  · Provide additional details for the methodology for the Resorufin (CYP2B1) potency and the PrestoBlue cell metabolic assays;

 

  · Provide a few examples of common microcatheters that fit the specifications in PharmaCyte’s Angiography Procedure Manual;

 

  · Clarify the language in the Pharmacy Manual regarding proper use of the syringe fill with the product candidate; and

 

  · Provide a discussion with data for trial of the potential for cellular and humoral immune reactivity against the heterologous rat CYP2B1 protein and potential for induction of autoimmune-mediated toxicities in our study population in the LAPC.

  

The Company assembled a scientific and regulatory team of experts to address the FDA requests. That team is working to complete the items requested by the FDA. The Company is in varying stages of addressing the studies and acquiring the information requested by the FDA.

 

The following provides a summary of the activities in which the Company is engaged to have the clinical hold lifted:

 

· Additional Regulatory Expertise Added to IND Team. In addition to its established team of experts, the Company has retained Biologics Consulting to perform a regulatory “Gap Analysis” and to assist with the Company’s IND submission. Biologics Consulting is a full-service regulatory and product development consulting firm for biologics, pharmaceuticals and medical devices and has personnel with extensive FDA experience. Although it took a lengthy amount of time to onboard Biologics Consulting, this should augment the Company’s ability to submit an acceptable IND to the FDA.

 

· Stability Studies on PharmaCyte’s Clinical Trial Product. The Company has now successfully completed a product stability study after 3, 6, 9, 12 and 18-months of storage frozen at -80C on the Company’s clinical trial product known as CypCaps™, including container closure integrity testing for certain timepoints. The next time point in this ongoing stability study will be at 24 months of product stability of the CypCaps. This 24-month time point analysis is ready to commence, and data will be available in the coming weeks.

 

· Additional Studies Requested by the FDA. The Company has designed and commenced various additional studies requested by the FDA, including a stability study on the cells from its MCB used to make the CypCaps™. The Company is already at the 3-year stability timepoint for the cells from its MCB. The Company is also collating existing information on the reproducibility and quality of the filling of the MCB cells into vials ready for CypCaps™ manufacturing.

 

· Determination of the Exact Sequence of the Cytochrome P450 2B1 Gene. The Company has completed the determination of the exact sequence of the cytochrome P450 2B1 gene inserted at the site previously identified on chromosome 9 using state-of-the-art nanopore sequencing, a cutting edge, unique and scalable technology that permits real-time analysis of long DNA fragments. The result of this analysis of the sequence data confirmed that the genes are intact.

 

· Further Confirmation of the Exact Sequence of the Cytochrome P450 2B1 Gene Insert. An additional, more finely detailed, analysis of the integration site of the cytochrome P450 2B1 gene from the augmented HEK293 cell clone that is used in its CypCaps™ product for was found to be intact. In this new study, the Company has been able to confirm the previously elucidated structure of the integrated transgene sequence using more data points. These studies also set the stage for a next step analysis to determine the genetic stability of the cytochrome P450 2B1 gene at the DNA level after multiple rounds of cell growth. This new study has been completed in which the original Research Cell Bank (“RCB”) cells were compared with cells from the MCB, and the analysis confirmed that the cytochrome P450 2B1 and the surrounding sequence has remained stable with no changes detected at the DNA level.

 

· Biocompatibility Studies. The Company has designed and commenced 8 biocompatibility studies, 6 of which have been completed successfully. The remaining 2 studies are underway. Those studies are the Acute Systemic Toxicity Study of Empty Cellulose Sulphate Capsules in Mice and the Skin Sensitization Study of Empty Cellulose Sulphate Capsules in Guinea Pigs. To enable these studies to be performed, Austrianova manufactured an additional 400 syringes of empty capsules for testing. Some of the data being generated will also be used to demonstrate comparability with the CypCaps™ successfully used in two earlier clinical trials for pancreatic cancer.

 

· Micro-Compression and Swelling Testing. This project is developing and optimizing two reproducible methods for testing and confirming the physical stability and integrity of the CypCaps™ product candidate. These studies required the acquisition of new equipment by Austrianova as well as validation and integration into Austrianova’s Quality Control laboratory.

 

· Break Force and Glide Testing. The Company is in the process of developing a protocol to measure whether the syringe, attached to the catheter when used to expel the capsules, will still have a break and glide force that is within the specification that the Company has established. The Company will set this specification based on the syringe/plunger manufacturer’s measured break and glide forces, or alternatively, accepted ranges for glide forces routinely used in the clinic.

 

· CypCaps Capsules Compatibility with the Syringe and Other Components of the Microcatheter Delivery System. The Company has commenced studies designed to show that CypCaps™ are not in any way adversely affected by the catheters used by interventional radiologists to deliver them into a patient. Compatibility data is being generated to demonstrate that the quality of the CypCaps™ is maintained after passage through the planned microcatheter systems.

 

· CypCaps Capsules and Cell Viability after Exposure to Radiological Contrast Medium. The Company has designed and commenced a project to test the effect of the exposure of CypCaps™ to two routinely used types of contrast medium that interventional radiologists use to implant the CypCaps™ in a patient. The contrast medium is used to visualize the blood vessels during implantation of the CypCaps™.

 

· Master Drug File Information. Austrianova is providing additional detailed confidential information to the FDA on the manufacturing process, including information on the improvements and advancements made to the product candidate since the last clinical trials were conducted with respect to reproducibility and safety. However, Austrianova has not changed the overall physical characteristics of the CypCaps™. The Company is supporting Austrianova financially in this work.

 

· Additional Documentation Requested by the FDA. The Company is in the process of updating its IND submission documentation, including extending its discussion on immunological aspects of its treatment for LAPC.

 

· Pig Study. Finally, the Company has designed a study in pigs to address biocompatibility and long-term implantation and dispersion of its CypCaps™. We believe this animal study will complement the positive data already available from the previous human clinical trials showing the safety of CypCaps™ implantation in human patients.

 

Impact of the COVID-19 Pandemic on the Company’s Operations

 

The coronavirus SARS-Cov2 pandemic (“COVID-19”) is causing significant, industry-wide delays in clinical trials. Although the Company is not yet in a clinical trial, the Company has filed an IND with the FDA to commence a clinical trial in LAPC. While the IND has been placed on clinical hold by the FDA, the Company has assessed the impact of COVID-19 on its operations. Currently, many clinical trials are being delayed due to COVID-19. There are numerous reasons for these delays. For example, patients have shown a reluctance to enroll or continue in a clinical trial due to fear of exposure to COVID-19 when they are in a hospital or doctor’s office. There are local, regional, and state-wide orders and regulations restricting usual normal activity by people. These discourage and interfere with patient visits to a doctor’s office if the visit is not COVID-19 related. Healthcare providers and health systems are shifting their resources away from clinical trials toward the care of COVID-19 patients. The FDA and other healthcare providers are making product candidates for the treatment of COVID-19 a priority over product candidates unrelated to COVID-19. As of the date of this Report on Form 10-Q (“Report”), the COVID-19 pandemic has had an impact upon the Company’s operations, although the Company believes that impact is not material. The impact primarily relates to delays in tasks associated with the preparation of the Company’s responses to the clinical hold, including all requested preclinical studies. There may be further delays in generating responses to the requests from the FDA related to the clinical hold.

  

As a result of the COVID-19 pandemic, commencement of the Company’s planned clinical trial to treat LAPC may be delayed beyond the lifting of the clinical hold by the FDA should that occur. Also, enrollment may be difficult for the reasons discussed above. In addition, after enrollment in the trial, if a patient contracts COVID-19 during his or her participation in the trial or is subject to isolation or shelter in place restrictions, this may cause him or her to drop out of our clinical trial, miss scheduled therapy appointments or follow-up visits or otherwise fail to follow the clinical trial protocol. If a patient is unable to follow the clinical trial protocol or if the trial results are otherwise affected by the consequences of the COVID-19 pandemic on patient participation or actions taken to mitigate COVID-19 spread, the integrity of data from the clinical trial may be compromised or not be accepted by the FDA. This could further adversely impact or delay the Company’s clinical development program if the FDA allows it to proceed.

 

It is highly speculative in projecting the effects of COVID-19 on the Company’s proposed clinical development program and the Company generally. The effects of COVID-19 may quickly and dramatically change over time. Its evolution is difficult to predict, and no one is able to say with certainty when the pandemic will subside.

 

Company Operations

 

Background

 

The Company is a Nevada corporation incorporated in 1996. In 2013, the Company restructured its operations from being a nutraceutical company to being a biotechnology company. The restructuring resulted in PharmaCyte focusing its efforts upon the development of a novel, effective and safe way to treat cancer and diabetes. In January 2015, the Company changed its name from Nuvilex, Inc. to PharmaCyte Biotech, Inc. to reflect the nature of its current business. In October 2021, the Company moved its headquarters to Las Vegas, Nevada.

 

Increase in Authorized Shares

 

On July 2, 2021, pursuant to stockholder approval at the Annual Meeting of Stockholders, the Company filed with the Secretary of State of the State of Nevada a Certificate of Amendment to its Articles of Incorporation, as amended, to increase the number of authorized shares to fifty billion ten million (50,010,000,000), of which fifty billion (50,000,000,000) shares, with a par value of $0.0001 per share, are designated as common stock and of which ten million (10,000,000) shares, with a par value of $0.0001 per share, are designated as preferred stock. The reverse stock split described below reduced the number of authorized shares to thirty-three million three hundred thirty-three thousand three hundred thirty-four (33,333,334). See Reverse Stock Split.

 

Nasdaq Listing

 

PharmaCyte’s common stock began trading on Nasdaq on August 10, 2021, under the symbol “PMCB.” Prior to that, PharmaCyte’s common stock was quoted on the OTCQB Market under the symbol “PMCB.” Following the reverse stock split (discussed below) of the Company’s common stock on July 12, 2021, and until August 6, 2021, the OTCQB Market Symbol for the Company’s common stock had temporarily been “PMCBD.”

 

Reverse Stock Split

 

Effective July 12, 2021, pursuant to the approval by the Company’s Board of Directors (“Board”), the Company filed with the Secretary of State of Nevada a Certificate of Change to the Articles of Incorporation, to cause a 1-for-1,500 reverse stock split of the Company’s common stock. The reverse stock split decreased the number of authorized shares of common stock from fifty billion (50,000,000,000) shares to thirty-three million three hundred thirty-three thousand three hundred thirty-four (33,333,334) shares, with a par value of $0.0001 per share. Any fractional shares resulting from the reverse stock split were rounded up to the next whole share. Except as otherwise indicated, all share and per share information in the accompanying Condensed Consolidated Financial Statements and related footnotes gives effect to the reverse stock split of the Company’s common stock.