$TYRA

Tyra Biosciences stock tumbles 30% on phase 2 trial results

Tyra Biosciences (NASDAQ: TYRA) shares dropped 30% after reporting Phase 2 trial results for dabogratinib. The drug showed a 79% overall response rate and 64% complete response rate in combined patients. The trial enrolled 44 participants, with safety results indicating low rates of severe adverse events. Tyra plans to continue enrollment and engage with health authorities for Phase 3 study design.

Original reporting
Published Sep 9, 2026, 12:36 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Sep 9, 2026, 12:54 PM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefTechnology
Primary signal
$TYRA
Bearish
high confidence
Mentioned
$TYRA
Relevance
9/10
AlphAI data visualization · based on investing.com
Decision brief

The 30-second read

$TYRABearishHigh
01

Why it matters

The 30% price drop reflects immediate market skepticism despite high response rates; future pricing will hinge on safety and Phase 3 plans.

02

Market read

The trial results create short‑term volatility for TYRA and may affect peer biotech valuations.

03

What to watch

Potential for partnership or licensing deals if data are validated in larger cohorts.

Relevance 9/10Novelty 9/10Timing: same-day

Background

Tyra Biosciences is a Nasdaq‑listed biotech developing FGFR3 inhibitors for bladder cancer.

Company-level read

Ticker impact

$TYRABearishHigh confidence
Context

TYRA stock dropped 30% after the company released Phase 2 SURF302 trial data showing a 79% overall response rate.

Expected impact

Further downside expected if additional data do not improve safety profile.

Evidence & confidence

A 30% intraday move on fresh trial data suggests strong market reaction; investors will likely adjust positions today.

Market effects

Phase 2 data may influence sentiment toward other FGFR3‑targeted biotech firms.

Limited to US biotech sector; no broader regional effect.

Minimal global impact beyond niche oncology investors.

Counterpoint

If safety data hold, the efficacy could drive a rebound once Phase 3 design is clarified.

Key entities

  • Tyra Biosciences

    Developer of dabogratinib, a FGFR3‑targeted therapy.

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Tyra Biosciences (NASDAQ:TYRA) shares fell 21.6% after Phase 2 trial results for dabogratinib showed an 86% overall response rate in patients with target exposure, but a 57% complete response rate at 60 mg, below analyst expectations of 70-80%. The company plans to advance to Phase 3 development and expand the study to a 70 mg cohort. Initial upper tract urothelial cancer study results were positive.

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Why is Tyra Biosciences stock plunging today?

Tyra Biosciences (TYRA) stock fell 31.1% to $18.42 after Phase 2 trial results for dabogratinib showed a 64% complete response rate, below the 70% analyst consensus. Piper Sandler and H.C. Wainwright had modeled a 70% rate as the success threshold. The stock had risen 13% the prior week. Broader market caution added to the decline.

$TYRAMed

Piper Sandler reiterates Tyra Biosciences stock rating ahead of data

Piper Sandler reiterated an Overweight rating and $56 price target for Tyra Biosciences (NASDAQ: TYRA) ahead of clinical trial data. The stock has risen 13% in a week and 136% in a year, trading at $28.60. Piper Sandler expects a 70% response rate for dabogratinib in bladder cancer trials, which could advance the drug to Phase 3. The firm sees a $1B+ opportunity in this market. Other analysts also maintain Buy ratings with targets up to $45.