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Jasper Therapeutics Announces Further Expansion of Clinical Program in Chronic Spontaneous Urticaria

Key Takeaway: Jasper Therapeutics, a clinical-stage biotechnology company, is expanding its clinical program for briquilimab, an antibody therapy for chronic spontaneous urticaria (CSU). The company announced the commencement of an open-label extension study that will enroll patients from previous studies, BEACON and SPOTLIGHT. Additionally, they received regulatory approval to add a new dosing cohort to the BEACON study, with initial data expected to be reported in January 2025. Jasper continues to work towards gathering comprehensive safety and efficacy data for its treatment.
Price reaction · baseline $20.08 (2024-10-22 close) · hit after-hours · 1 other JSPR headline(s) in the window, move may be shared
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POSITIVE FACTORS

  • Jasper acquires regulatory clearance to expand its BEACON study in CSU.
  • The addition of the 360mg single-dose cohort aims to evaluate a new potential loading dose.
  • Initial data from the BEACON study is expected in early January 2025.

BiopharmaWatch Analysis

From our catalyst data and publicly available data · not financial advice
Best trade, last catalyst
+18%
120-day peak, hindsight
Typical move
7.8%
average across 5 past catalysts
Cash runway
~3 mo
High dilution risk
Lead asset
Isradipine
Phase 1 · Nicotine Dependence

Full Press Release Details

REDWOOD CITY, Calif., Oct. 23, 2024 (GLOBE NEWSWIRE) -- Jasper Therapeutics, Inc. (Nasdaq: JSPR) (Jasper), a clinical stage biotechnology company focused on development of briquilimab, a novel antibody therapy targeting c-Kit (CD117) to address mast cell driven diseases such as chronic spontaneous urticaria (CSU), chronic inducible urticaria (CIndU) and asthma, today announced that it is commencing an open-label extension study in chronic urticarias that will roll over patients from the BEACON and SPOTLIGHT studies upon completion of their initial follow up period. Additionally, Jasper also announced it has obtained regulatory clearance in the US and in the EU to further expand the BEACON study in CSU by adding a 360mg single-dose cohort (n=4), and that enrollment in this cohort has commenced. Jasper continues to plan to report initial data from all doses of the BEACON study up through 240mg in CSU during the week of January 6th, 2025. Data from the newly added 360mg single-dose cohort is expected to be reported in the first half of 2025.
“I am very pleased with the ability of our clinical and regulatory teams to efficiently advance our clinical development plan in support of generating a robust data set in chronic urticaria,” said Ronald Martell, President and Chief Executive Officer of Jasper. “The addition of the 360mg single-dose cohort in the BEACON study in CSU will allow us to evaluate another potential loading dose leveraging the ongoing clinical trial, and the rollover extension study will allow us to gather longer-term safety and efficacy data at therapeutic doses for patients in both BEACON and SPOTLIGHT. The expanded breadth of clinical data provided in CSU and CindU should further support optimal biologic dosing in our registrational studies, planned to commence in the second half of 2025.”
Briquilimab is a targeted aglycosylated monoclonal antibody that blocks stem cell factor from binding to the cell-surface receptor c-Kit, also known as CD117, thereby inhibiting signaling through the receptor. This inhibition disrupts the critical survival signal, leading to the depletion of the mast cells via apoptosis which removes the underlying source of the inflammatory response in mast cell driven diseases such as chronic urticaria. Jasper is currently conducting clinical studies of briquilimab as a treatment in patients with CSU or with CIndU and is initiating a clinical study in patients with asthma. Briquilimab is also currently in clinical studies as a treatment for patients with LR-MDS and as a conditioning agent for cell therapies for rare diseases. To date, briquilimab has a demonstrated efficacy and safety profile in more than 160 dosed participants and healthy volunteers, with clinical outcomes in CIndU, and as a conditioning agent in severe combined immunodeficiency (SCID), acute myeloid leukemia (AML), myelodysplastic syndromes (MDS), Fanconi anemia (FA), and sickle cell disease (SCD).
Jasper is a clinical-stage biotechnology company developing briquilimab, a monoclonal antibody targeting c-Kit (CD117) as a therapeutic for chronic mast and stem cell diseases such as chronic urticaria, asthma and lower to intermediate risk MDS and as a conditioning agent for stem cell transplants for rare diseases such as SCD, FA and SCID. To date, briquilimab has a demonstrated efficacy and safety profile in more than 160 dosed participants and healthy volunteers, with clinical outcomes in CIndU and as a conditioning agent in SCID, AML, MDS, FA, and SCD. For more information, please visit us at www.jaspertx.com.
Forward-Looking Statements
Certain statements included in this press release that are not historical facts are forward-looking statements for purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements are sometimes accompanied by words such as “believe,” “may,” “will,” “estimate,” “continue,” “anticipate,” “intend,” “expect,” “should,” “would,” “plan,” “predict,” “potential,” “seem,” “seek,” “future,” “outlook” and similar expressions that predict or indicate future events or trends or that are not statements of historical matters. These forward-looking statements include, but are not limited to, statements regarding briquilimab’s potential, including with respect to its potential in mast cell driven diseases such as CSU, CIndU, and asthma; the expected number of participants in the 360mg single-dose cohort; Jasper’s expected timing for presenting initial data from all doses of the BEACON study up through the 240mg dose cohort in CSU and from the 360mg single-dose cohort; Jasper’s expectations regarding the commencement and timing of registrational studies; and Jasper’s expectation that the expanded clinical data should further support optimal biologic dosing in its registrational studies. These statements are based on various assumptions, whether or not identified in this press release, and on the current expectations of Jasper and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as, and must not be relied on by an investor as, a guarantee, an assurance, a prediction or a definitive statement of fact or probability. Many actual events and circumstances are beyond the control of Jasper. These forward-looking statements are subject to a number of risks and uncertainties, including general economic, political and business conditions; the risk that the potential product candidates that Jasper develops may not progress through clinical development or receive required regulatory approvals within expected timelines or at all; the risk that clinical trials may not confirm any safety, potency or other product characteristics described or assumed in this press release; the risk that prior test, study and trial results may not be replicated in continuing or future studies and trials; the risk that Jasper will be unable to successfully market or gain market acceptance of its product candidates; the risk that prior study results may not be replicated; the risk that Jasper’s product candidates may not be beneficial to patients or successfully commercialized; patients’ willingness to try new therapies and the willingness of physicians to prescribe these therapies; the effects of competition on Jasper’s business; the risk that third parties on which Jasper depends for laboratory, clinical development, manufacturing and other critical services will fail to perform satisfactorily; the risk that Jasper’s business, operations, clinical development plans and timelines, and supply chain could be adversely affected by the effects of health epidemics; the risk that Jasper will be unable to obtain and maintain sufficient intellectual property protection for its investigational products or will infringe the intellectual property protection of others; and other risks and uncertainties indicated from time to time in Jasper’s filings with the SEC, including its Annual Report on Form 10-K for the year ended December 31, 2023 and subsequent Quarterly Reports on Form 10-Q. If any of these risks materialize or Jasper’s assumptions prove incorrect, actual results could differ materially from the results implied by these forward-looking statements. While Jasper may elect to update these forward-looking statements at some point in the future, Jasper specifically disclaims any obligation to do so. These forward-looking statements should not be relied upon as representing Jasper’s assessments of any date subsequent to the date of this press release. Accordingly, undue reliance should not be placed upon the forward-looking statements.
Alex Gray (investors)
Joyce Allaire (investors)
Lauren Walker (media)

Frequently Asked Questions

What is briquilimab used to treat?

Briquilimab is aimed at treating mast cell driven diseases, including chronic urticaria and asthma.

What studies is Jasper initiating for briquilimab?

Jasper is starting an open-label extension study for chronic urticarias and expanding the BEACON study.

When will initial data from the BEACON study be reported?

Initial data from the BEACON study is expected to be reported the week of January 6th, 2025.

How many participants received briquilimab in studies?

More than 160 participants and healthy volunteers have received briquilimab in clinical studies.

What is the purpose of the 360mg cohort in the BEACON study?

The 360mg cohort aims to evaluate another potential loading dose for chronic spontaneous urticaria.

Last updated: Oct 23, 2024