Jnana Therapeutics, Inc. | February 02, 2024
Jnana Therapeutics, a clinical-stage biotechnology company leveraging its next-generation chemoproteomics platform to discover medicines for challenging-to-drug targets, today announced positive, statistically significant interim results from its ongoing clinical study of JNT-517 in individuals with phenylketonuria (PKU). JNT-517, a small molecule inhibitor of the phenylalanine (Phe) transporter SLC6A19, is being evaluated as a potential first-in-class oral treatment for PKU across all ages and genotypes. On the basis of these positive interim results, Jnana has adapted the Phase 1b trial design to support the potential for accelerated progression of JNT-517.
“There is an urgent need for an oral, safe, and efficacious therapy for the more than 60% of individuals with PKU not currently on therapy. Across the spectrum of mild to severe disease, our results demonstrate a robust, sustained reduction in blood Phe levels, the registrational endpoint for PKU, giving us high confidence in the path forward for JNT-517,” said George Vratsanos, M.D., Chief Medical Officer and Head of R&D at Jnana Therapeutics. “We are also encouraged by this validation of the power of our RAPID platform to discover small molecules with compelling clinical benefit against challenging-to-drug targets.”
JNT-517 is being studied in a randomized, double-blind, placebo-controlled trial in individuals with mild to severe PKU. Following a 28-day screening period focused predominantly on ensuring an average blood Phe level of >600µM, study participants were randomized with no run-in period to 75mg of JNT-517 twice daily (BID) or placebo.
The planned interim analysis was based on 13 participants, eight dosed with JNT-517 and five dosed with placebo over 28 days, and demonstrated the following results
JNT-517 led to a statistically significant (p=0.0019 vs. placebo) mean blood Phe reduction from baseline of 51%, measured per-protocol at day 28.
A high response rate was seen where seven of eight (88%) treated participants achieved >30% reduction in blood Phe from baseline; five of eight (63%) achieved >45% reduction; and two of eight (25%) achieved >65% reduction.
A robust response was seen across participants treated with JNT-517 irrespective of baseline blood Phe levels, which ranged from 593µM to 1,526µM with a mean of 1,124µM.
A rapid onset of effect was observed with significant blood Phe reduction achieved within seven days after commencing dosing, which was sustained through the full 28 days of dosing.
JNT-517 was safe and well tolerated with no serious adverse events and no clinically significant changes in laboratory parameters, consistent with the safety profile demonstrated in the Phase 1a healthy volunteer study.
"JNT-517 represents a completely new therapeutic approach that could transform the current treatment paradigm in PKU, in particular for individuals with severe, or classical, PKU where there is the highest unmet medical need,” said Cary O. Harding, M.D., study investigator and Professor of Molecular and Medical Genetics at Oregon Health and Science University School of Medicine. “I am encouraged by the clinical results to date and look forward to working with Jnana and the PKU community to continue to advance this program.”
Based on these interim results, Jnana has adapted the protocol of the ongoing trial to include dose exploration. Jnana expects topline data from the second dose cohort in mid-2024 and plans to submit full data from the two dose cohorts for presentation at a scientific meeting in the second half of 2024. Jnana anticipates the company will engage regulators in the second half of 2024 and seek to advance JNT-517 directly into a pivotal Phase 3 study in the first half of 2025.
JNT-517 Phase 1b Clinical Trial
The ongoing clinical program includes a randomized, double-blind, placebo-controlled trial evaluating the safety, tolerability, pharmacokinetics, and effect on blood and urinary Phe of JNT-517 dosed over a four-week period in individuals diagnosed with PKU. The study dosed its first participant with PKU in August 2023 and is enrolling individuals aged 18 to 65 at clinical sites in the United States and Australia. For more information about the study, please see clinicaltrials.gov (NCT05781399).
JNT-517 is a selective small molecule inhibitor of the Phe transporter SLC6A19 that has the potential to be a first-in-class oral therapy used to treat any person with PKU, regardless of age or genotype. JNT-517 acts at a novel, cryptic allosteric site to block kidney reabsorption of Phe and offers a promising new approach to reduce blood Phe levels. The U.S. Food and Drug Administration granted JNT-517 Rare Pediatric Disease Designation in late 2022.
PKU is a rare inherited metabolic disorder caused by a deficiency of the enzyme phenylalanine hydroxylase (PAH). This enzyme is required for the breakdown of phenylalanine (Phe), an amino acid found in all protein-containing foods. When PAH is deficient or defective, Phe accumulates to abnormally high levels in the blood. If left untreated, toxic levels of Phe in the blood can result in progressive and severe neurological impairment and neuropsychological complications. The SLC transporter SLC6A19 is responsible for kidney reabsorption of Phe back into the bloodstream, and the inhibition of SLC6A19 offers a novel, oral approach for the treatment of PKU by facilitating urinary excretion of excess Phe.
About Jnana Therapeutics
Jnana Therapeutics is a clinical-stage biotechnology company leveraging its next-generation RAPID chemoproteomics platform to discover medicines for highly validated, challenging-to-drug targets to treat diseases with high unmet needs. Jnana is focused on developing first- and best-in-class therapies to treat a wide range of diseases, including rare diseases and immune-mediated diseases. Jnana’s wholly owned lead program, JNT-517, which targets an allosteric site on the phenylalanine transporter SLC6A19, is a potential first-in-class oral approach for the treatment of PKU, a rare genetic metabolic disease. Located in Boston, Jnana brings together scientific leaders in small molecule drug discovery and development, a highly experienced management team, and the backing of leading life science investors Bain Capital Life Sciences, RA Capital Management, Polaris Partners, Versant Ventures, Avalon Ventures, Pfizer Ventures, and AbbVie Ventures.
Capricor Therapeutics | January 24, 2024
Capricor Therapeutics a biotechnology company developing transformative cell and exosome-based therapeutics for the treatment and prevention of rare diseases, today announced that Capricor’s proprietary StealthX™ exosome-based multivalent vaccine (StealthX™ vaccine) for the prevention of SARS-CoV-2 has been selected to be part of Project NextGen, an initiative by the U.S. Department of Health and Human Services to advance a pipeline of new, innovative vaccines providing broader and more durable protection for COVID-19. As part of Project NextGen, the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, will conduct a Phase 1 clinical study with Capricor’s StealthX™ vaccine, subject to regulatory approval. NIAID's Division of Microbiology and Infectious Diseases (DMID) would oversee the study.
“We are extremely pleased with the external support from the NIH, which highlights the clinical potential of our StealthX™ exosome platform technology and provides non-dilutive support for the advancement of our vaccine candidate,” said Linda Marbán, Ph.D., Capricor’s chief executive officer. “Our proprietary vaccine is multivalent, delivering both the highly mutagenic S protein (Spike) and the more stable N protein (Nucleocapsid) which potentially may offer broader and longer lasting immunity against SARS-CoV-2. We view the NIH SARS-CoV-2 project as the first clinical step towards development of a next generation vaccine platform that may be extended to other infectious diseases. Our platform is designed to combine the speed of response of an mRNA vaccine with the potential efficacy of a protein vaccine. Further, our StealthX™ vaccine is free of both adjuvant and lipid nanoparticles and in preclinical studies has generated a strong immune response at low doses. We believe our StealthX™ vaccine may offer a clinically meaningful alternative for highly mutating or novel infectious agents.”
Dr. Marbán continued, “This is the opportunity we have been waiting for as it allows the exosome technology to be brought into the clinic as we continue to focus our resources on CAP-1002 for the treatment of Duchenne muscular dystrophy. Beyond SARS-CoV-2, we look forward to exploring the potential therapeutic utility of this platform, and more broadly, expanding our pipeline into therapeutics and future partnership opportunities.”
About Capricor’s StealthX™ Vaccine
The StealthX™ vaccine is a proprietary vaccine developed internally by Capricor utilizing exosomes that were engineered to express either spike or nucleocapsid proteins on the surface. Preclinical results from murine and rabbit models published in Microbiology Spectrum, showed the StealthX™ vaccine, resulted in robust antibody production, potent neutralizing antibodies, a strong T-cell response and a favorable safety profile. These effects were obtained with administration of only nanogram amounts of protein and without adjuvant or synthetic lipid nanoparticles (LNPs). Exosomes offer a new antigen delivery system that potentially could be utilized to rapidly generate multivalent protein-based vaccines. Exosomes, first identified as extracellular vesicles, are small vesicles enriched in specific subsets of proteins, RNAs and lipids and responsible for cell-to-cell communication.
About Capricor Therapeutics
Capricor Therapeutics, Inc. is a biotechnology company focused on the development of transformative cell and exosome-based therapeutics for the treatment and prevention of rare diseases. Capricor’s lead candidate, CAP-1002, is an allogeneic cardiac-derived cell therapy currently in Phase 3 clinical development for treating Duchenne muscular dystrophy (DMD). Further, Capricor has entered into a partnership for the exclusive commercialization and distribution of CAP-1002 for DMD in the United States and Japan with Nippon Shinyaku Co., Ltd. (U.S. subsidiary: NS Pharma, Inc.), subject to regulatory approval. Capricor is also developing its exosome technology as a potential next-generation therapeutic platform. Our proprietary StealthX™ exosome platform has potential for a broad range of new therapeutic applications in the field of vaccinology as well as targeted oligonucleotide, protein and small molecule therapeutics to treat or prevent a variety of diseases.
Personalis, Inc. | February 05, 2024
Personalis, Inc. a leader in advanced genomics for cancer, and ClearNote Health, Inc., a pioneer in epigenomic technologies, today unveiled an alliance through which Personalis will expand its pharmaceutical service offerings by distributing ClearNote’s cutting-edge epigenomic 5-hydroxymethylcytosine (5hmC) platform.
“We have built a unique pharma channel based on our industry-leading tissue and MRD assays and ClearNote Health’s blood-based epigenomic approach is complementary to our offering as it helps our customers deepen their understanding of a patient’s response to immunotherapies,” said Chris Hall, CEO and President of Personalis. “Commercial partnerships such as this broaden our portfolio and are expected to appeal to a wide range of biopharma customers and accelerate our revenue growth.”
Echoing this sentiment, Dave Mullarkey, CEO of ClearNote Health, remarked, “Partnering with Personalis presents an excellent opportunity to bring our 5hmC technology to the forefront of cancer research. This alliance is a testament to the synergy between our two companies, enabling us to expand our reach and significantly impact the biopharmaceutical industry. Together, we can accelerate the development of personalized therapies and make a real difference in the lives of patients.”
ClearNote Health’s Epigenomics Platform represents a groundbreaking advance in cancer detection, offering real-time insights into disease-specific pathways. By tracking changes in 5hmC levels coupled with artificial intelligence-based analytical methods, the platform can detect cancer earlier, monitor disease progression, understand mechanisms of resistance, and identify promising drug targets and biomarkers. These insights are invaluable for optimizing drug development programs and delivering more effective treatments to patients. The Epigenomics Platform identifies changes in gene activation and gene regulation by labeling specific changes in the 5hmC landscape from plasma-derived cell-free DNA. This rich biological information, as part of clinical trials, enables the monitoring of cancer therapies in real time and contributes to an understanding of drug resistance mechanisms. The partnership marks a pivotal moment in cancer research, leveraging the strengths of both companies to offer unparalleled solutions in the biopharmaceutical industry.
About ClearNote Heath, Inc.
ClearNote Health is a cancer detection company focused on enabling people at risk for high-mortality cancers to live longer, healthier lives. Utilizing a standard blood draw, the company applies its proprietary epigenomic platform, combining biology and artificial intelligence, to identify DNA-based changes in biology as cancer develops. With lead programs in non-invasive early detection of pancreatic and ovarian cancers in patients at the highest risk for these diseases, ClearNote Health identifies cancers before they progress and when patients are most likely to benefit from treatment. ClearNote Health’s first commercially available test is the Avantect™ Pancreatic Cancer Test, which detects the presence of pancreatic cancer signals in patients at high risk of the disease, including those recently diagnosed with Type 2 diabetes. ClearNote Health is headquartered in San Diego, with additional presence in the San Francisco Bay area and internationally. The company’s CLIA- and CAP-accredited laboratory is located in San Diego, Calif.
About Personalis, Inc.
At Personalis, we are transforming the active management of cancer through breakthrough personalized testing. We aim to drive a new paradigm for cancer management, guiding care from biopsy through the life of the patient. Our highly sensitive assays combine tumor-and-normal profiling with proprietary algorithms to deliver advanced insights even as cancer evolves over time. Our products are designed to detect minimal residual disease (MRD) and recurrence at the earliest time points, enable the selection of targeted therapies based on ultra-comprehensive genomic profiling, and enhance biomarker strategy for drug development. Personalis is based in Fremont, California.