Inhibrx Submits BLA for Chondrosarcoma and Reports Strong Colorectal Cancer Trial Data for Ozekibart
INBX has more than doubled off its 52-week low of $10.84 on elevated volume (3.2× avg).
Summary
Inhibrx Biosciences submitted a BLA for ozekibart in chondrosarcoma and reported positive interim Phase 1/2 data for ozekibart in colorectal cancer, showing superior efficacy compared to historical benchmarks.
Key Events · Product Development and Regulatory · INBX
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BLA Submitted for Chondrosarcoma
Inhibrx submitted a Biologics License Application (BLA) to the FDA for ozekibart (INBRX-109) in conventional chondrosarcoma in April 2026, fulfilling a plan outlined in the recent 10-K filing.
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Positive Interim Phase 1/2 Data in Colorectal Cancer
Updated interim data from the Phase 1/2 study of ozekibart in combination with FOLFIRI for late-line colorectal cancer showed an Objective Response Rate (ORR) of 20% (vs. historical 1-6%) and a Disease Control Rate (DCR) of 87% in heavily pretreated patients.
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Strong Efficacy and Manageable Safety Profile
The study reported a median Progression-Free Survival (PFS) of 5.5 months, with 42% of patients remaining progression-free at 6 months. The safety profile was manageable, with most adverse events being Grade 1 or 2 and consistent with FOLFIRI.
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Plans for Accelerated Pathways and First-Line CRC Trial
The company plans to meet with the FDA in the second half of 2026 to discuss initiating a first-line registrational trial in colorectal cancer and exploring accelerated regulatory pathways for ozekibart in fourth-line CRC and refractory Ewing sarcoma.
Analysis · INBX · Life Sciences
Inhibrx Biosciences has achieved two significant milestones for its therapeutic candidate, ozekibart. The submission of a Biologics License Application (BLA) to the FDA for conventional chondrosarcoma marks a critical step towards potential market approval, fulfilling a previously announced plan. Concurrently, updated interim data from the Phase 1/2 study in late-line colorectal cancer (CRC) demonstrated a compelling signal of activity, with an Objective Response Rate (ORR) of 20% compared to historical rates of 1-6% for standard of care in a heavily pretreated patient population. The median Progression-Free Survival (PFS) of 5.5 months and a robust Disease Control Rate (DCR) of 87% further underscore the drug's potential. These positive clinical results, coupled with a manageable safety profile, support the company's plans to discuss accelerated regulatory pathways and initiate a first-line registrational trial in CRC with the FDA. This dual progress significantly de-risks ozekibart's development and expands its potential market opportunity.
How filings like this one have moved
In the 30 days to Sep 14, 2026, 35.8% of the 1051 measured filings Wiseek scored 8 moved their stock by 5% or more by the next session's close. The median move was -0.43%. These are measured outcomes after filings of this importance, not a forecast for this one.
Measured one observation per ticker per day, after exclusions. Current figures: Filing Impact Tracker · open dataset
At the time of this filing, INBX was trading at $83.49 on NASDAQ in the Life Sciences sector, with a market capitalization of approximately $1.2B. The 52-week trading range was $10.84 to $94.57. This filing was assessed with positive market sentiment and an importance score of 8 out of 10.