Boundless Bio announces leadership changes, halts BBI-825 trial, advances third ecDTx program, and extends operational runway to 2027.
Quiver AI Summary
Boundless Bio has announced it will not advance BBI-825 into the second part of the STARMAP clinical trial due to challenges related to emerging clinical data and the competitive landscape for treating specific colorectal cancer mutations. The company will focus its resources on BBI-355, which is on track for initial clinical data readout in the latter half of 2025, and is progressing on its third ecDNA-directed therapy program expected to nominate a development candidate by mid-2025. Additionally, the company is undergoing leadership changes, with Chief Medical Officer Klaus Wagner and Chief Business Officer Neil Abdollahian set to leave, while James L. Freddo will serve as interim CMO. Boundless Bio's operational runway has been extended into 2027, aligning with its clinical milestones.
Potential Positives
- Initial clinical data readout for BBI-355 is on track for the second half of 2025, reaffirming the company's commitment to its clinical development pipeline.
- The decision to focus resources on BBI-355 and the third ecDTx program extends the company's operating runway into 2027, allowing for further development and potential breakthroughs.
- The advancement of the third ecDTx program demonstrates the company's ongoing innovation and commitment to addressing unmet medical needs in oncology, with a development candidate nomination expected by mid-2025.
Potential Negatives
- Company has made the strategic decision not to advance the BBI-825 program into the Part 2 portion of the STARMAP clinical trial, indicating potential challenges in the development pipeline.
- Key executives, including the Chief Medical Officer and Chief Business Officer, are stepping down, which may create uncertainty in leadership and strategic direction.
- The decision to not continue BBI-825 was influenced by a lack of dose-proportional exposure in early trials and increasing development costs, revealing pressures in the competitive oncology landscape.
FAQ
What is the latest update on Boundless Bio's clinical trials?
Boundless Bio has decided not to advance BBI-825 into Part 2 of the STARMAP trial but continues with BBI-355 and ecDTx 3 programs.
Why was BBI-825 not advanced in the clinical trial?
The decision was based on preliminary data showing lack of dose-proportional exposure and increasing development costs.
What are the future plans for BBI-355?
BBI-355 is expected to report preliminary clinical proof-of-concept safety and efficacy data in the second half of 2025.
Who is now the Chief Medical Officer at Boundless Bio?
James L. Freddo, M.D., has been appointed as the Interim Chief Medical Officer following the departure of Klaus Wagner, M.D., Ph.D.
What is the focus of Boundless Bio's ecDTx programs?
Boundless Bio aims to develop therapies targeting extrachromosomal DNA to treat oncogene amplified cancers that are hard to tackle.
Disclaimer: This is an AI-generated summary of a press release distributed by GlobeNewswire. The model used to summarize this release may make mistakes. See the full release here.
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Full Release
Company elects not to advance BBI-825 into Part 2 portion of STARMAP clinical trial
Third ecDTx program advancing, with plans for development candidate nomination by mid-2025
Operating runway extended into 2027, through anticipated clinical readout for BBI-355 and key development milestones for third ecDTx program
Klaus Wagner, M.D., Ph.D., Chief Medical Officer, and Neil Abdollahian, Chief Business Officer, stepping down; James L. Freddo, M.D., to serve as Interim Chief Medical Officer
SAN DIEGO, Dec. 12, 2024 (GLOBE NEWSWIRE) --
Boundless Bio
(Nasdaq: BOLD), a clinical-stage oncology company interrogating extrachromosomal DNA (ecDNA) biology to deliver transformative therapies to patients with previously intractable oncogene amplified cancers, today announced updates to its portfolio of ecDNA directed therapy (ecDTx) programs and to its executive leadership team.
Pipeline Updates
Boundless announced the following updates to its portfolio of novel ecDTx programs for a range of aggressive and difficult-to-treat cancer indications:
Initial clinical data readout for BBI-355 on track for the second half of 2025
: Enrollment is ongoing in Boundless’s Phase 1/2 POTENTIATE clinical trial, which is evaluating BBI-355 both as a single agent and in combination with targeted therapies for patients with oncogene-amplified solid tumors. BBI-355 is a novel, oral, and potent CHK1 inhibitor specifically designed to target replication stress in oncogene-amplified cancers. The company has reaffirmed its expectation to report preliminary clinical proof-of-concept safety and antitumor activity data in the second half of 2025.
Decision not to advance BBI-825 into Part 2 portion of STARMAP trial
: Boundless has been evaluating BBI-825, an oral RNR inhibitor, in the Phase 1/2 STARMAP clinical trial for patients with solid tumors, including those with
BRAF
V600E
or
KRAS
G12C
mutated colorectal cancer that has developed resistance oncogene amplifications. To date, BBI-825 has been generally well-tolerated. Following an assessment of preliminary pharmacokinetic data from the Part 1 portion of the trial showing a lack of dose-proportional exposure, and the increasing complexity and associated development costs related to the evolving
BRAF
V600E
and
KRAS
G12C
mutated cancer treatment landscape, Boundless has made the strategic decision not to continue dose escalation of Part 1 or to proceed into the Part 2 portion of the STARMAP trial.
Third ecDTx program advances, with development candidate nomination expected by mid-2025:
Boundless has progressed its ecDTx 3 program targeting a previously undrugged kinesin essential for ecDNA segregation and expects to select a development candidate by mid-2025. The company has reaffirmed that it expects to submit an Investigational New Drug (IND) application in the first half of 2026.
Leadership Transitions
Boundless also announced that Klaus Wagner, M.D., Ph.D., Chief Medical Officer (CMO), and Neil Abdollahian, Chief Business Officer (CBO), will depart the company at the end of December and in early January, respectively. James L. Freddo, M.D., current advisor to Boundless with nearly 30 years of clinical leadership experience in biopharmaceutical companies, will serve as Interim CMO while the company conducts a search for a permanent hire. Dr. Freddo’s extensive background includes serving as CMO and later as a member of the board of directors at Ignyta, Inc., CMO and Senior Vice President, Development at Anadys Pharmaceuticals, and Vice President, Clinical Development, Oncology at Pfizer. Boundless does not intend to appoint a new CBO at this time.
“After a thorough assessment of BBI-825’s emerging clinical data and anticipated development costs, particularly amid the dynamic and increasingly competitive landscape of
BRAF
V600E
and
KRAS
G12C
-mutated cancer treatment, we have decided not to advance the STARMAP trial. We are grateful to our team members, patients, and investigators who contributed to the BBI-825 program,” said Zachary Hornby, President and CEO of Boundless Bio. “With this strategic decision, we are prioritizing resource allocation to BBI-355, which remains on-track for initial clinical proof-of-concept data in 2025, and our novel ecDTx 3 program, where we’ve made substantial preclinical progress and expect to nominate a development candidate by mid-2025. It also extends our operating runway into 2027, well beyond the anticipated milestones for both BBI-355 and ecDTx 3.”
Mr. Hornby added, “At Boundless, we are seeking to improve outcomes for high unmet need oncogene amplified cancer patients by tackling complex challenges in cancer biology. I would like to sincerely thank both Klaus and Neil for their instrumental contributions to that work over the past several years and wish them well as they move to their next professional chapters. Looking ahead, we remain diligently focused on delivering meaningful outcomes for patients and other stakeholders and look forward to reporting on our progress in 2025.”
About Boundless Bio
Boundless Bio is a clinical-stage oncology company dedicated to unlocking a new paradigm in cancer therapeutics to address the significant unmet need of patients with oncogene amplified tumors by targeting extrachromosomal DNA (ecDNA), a root cause of oncogene amplification observed in more than 14% of cancer patients. Boundless Bio is developing the first ecDNA-directed therapeutic candidate (ecDTx), BBI-355, which is an oral inhibitor of checkpoint kinase 1 (CHK1) being evaluated in a Phase 1/2 clinical trial in patients with oncogene amplified cancers. Boundless Bio’s second ecDTx, BBI-825, is an oral inhibitor of ribonucleotide reductase (RNR) that has been evaluated in a Phase 1/2 clinical trial in cancer patients with resistance gene amplifications. Leveraging its Spyglass platform, Boundless Bio has additional programs advancing through preclinical development and discovery. Boundless Bio is headquartered in San Diego, CA. For more information, visit
www.boundlessbio.com
and follow us on
LinkedIn
and
X
.
Forward-Looking Statements
Boundless Bio cautions you that statements contained in this press release regarding matters that are not historical facts are forward-looking statements. The forward-looking statements are based on our current beliefs and expectations and include but are not limited to: the timing of expected data readout for the Phase 1/2 POTENTIATE clinical trial, and new development candidate nomination and submission of an IND application for ecDTx 3; the sufficiency of our cash position to fund operations through anticipated initial clinical proof-of-concept data readout for the Phase 1/2 POTENTIATE clinical trial, nomination of a new development candidate and submission of an IND application for a new development candidate for ecDTx 3 and into 2027; the company’s plan to not advance the BBI-825 program; and the potential safety and therapeutic benefits of our ecDTx in treating patients with oncogene amplified cancers. Actual results may differ from those set forth in this press release due to the risks and uncertainties inherent in our business, including, without limitation: we are early in our development efforts and our approach to discover and develop ecDTx directed against ecDNA in oncogene amplified cancers is novel and unproven; results from preclinical studies or early clinical trials not necessarily being predictive of future results; analytical validation of an ecDNA diagnostic not necessarily being predictive of its clinical validity and utility; potential delays in the commencement, enrollment, data readouts or completion of clinical trials or preclinical studies or submission of an IND; potential difficulty or delay in transitioning the CMO position and any resulting adverse impacts on our development programs or otherwise; our dependence on third parties in connection with clinical trials, preclinical studies, ecDNA diagnostic development, and manufacturing; unfavorable results from clinical trials or preclinical studies; we may expend our limited resources to pursue a particular ecDTx and fail to capitalize on ecDTx with greater development or commercial potential; unexpected adverse side effects or inadequate efficacy of our ecDTx that may limit their development, regulatory approval, and/or commercialization; the potential for our programs and prospects to be negatively impacted by developments relating to our competitors, including the results of studies or regulatory determinations relating to our competitors; regulatory developments in the United States and foreign countries; efforts to streamline operations may not produce the efficiencies expected; we may use our capital resources sooner than we expect; and other risks described in our filings with the Securities and Exchange Commission (SEC), including under the heading “Risk Factors” in our quarterly report on Form 10-Q for the quarter ended March 31, 2024 and any subsequent filings with the SEC. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof, and we undertake no obligation to update such statements to reflect events that occur or circumstances that exist after the date hereof. All forward-looking statements are qualified in their entirety by this cautionary statement, which is made under the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.
Contacts:
Investors
Renee Leck
THRUST Strategic Communications
renee@thrustsc.com
Media
Carly Scaduto
carly@carlyscadutoconsulting.com
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