$GMAB

Genmab reports phase 2 trial data for colorectal cancer drug

Genmab (NASDAQ:GMAB) reported Phase 2 trial data for petosemtamab in metastatic colorectal cancer, showing 75% and 67% response rates in first- and second-line patients, respectively. The trial involved 79 patients and was presented at the European Society for Medical Oncology Congress 2026. Genmab is conducting four Phase 3 trials and will host an investor update.

Original reporting
Published Oct 25, 2026, 11:04 AM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 25, 2026, 11:17 AM 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 briefFinancial news
Primary signal
$GMAB
Bullish
high confidence
Mentioned
$GMAB
Relevance
8/10
AlphAI data visualization · based on investing.com
Decision brief

The 30-second read

$GMABBullishMed
01

Why it matters

The disclosed Phase 2 data represent the first public efficacy read‑out for petosemtamab, a key asset in Genmab's pipeline.

02

Market read

First‑time trial data are likely to move Genmab's stock as investors reassess the drug's commercial potential.

03

What to watch

Safety profile and regulatory timelines remain uncertain, which could temper upside.

Relevance 8/10Novelty 9/10Timing: today

Background

Genmab is a Copenhagen‑based biotech developing bispecific antibodies for cancer treatment.

Company-level read

Ticker impact

$GMABBullishHigh confidence
Context

Genmab disclosed Phase 2 trial results for petosemtamab showing 75% response in first‑line metastatic colorectal cancer patients.

Expected impact

upward pressure as market prices in the high response rates

Evidence & confidence

Phase 2 data with >70% response rates are material for a biotech and often trigger price appreciation before Phase 3 read‑outs.

Market effects

Positive data may lift the broader oncology biotech sector.

European biotech markets could see modest gains.

Potential ripple effect on global cancer‑therapy pipelines.

Counterpoint

If later‑stage trials fail to replicate these results, the current optimism could reverse sharply.

Key entities

  • Genmab A/S

    Biotech firm reporting the trial results.

  • Petosemtamab

    Investigational bispecific antibody targeting metastatic colorectal cancer.

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Genmab A/S (GMAB) Reports 75%/67% ORR in Phase 2 mCRC

Genmab reported updated Phase 2 data for petosemtamab plus chemo in metastatic colorectal cancer, showing 75% ORR in 1L and 67% in 2L, with 81% in 1L left-sided tumors. Median follow-up was 5.9 and 7.1 months. Most responses were confirmed. This update supports Genmab’s shift into late-stage GI oncology.

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Genmab and Incyte agree to colorectal cancer trial

Genmab and Incyte will collaborate on a Phase 1/2 trial combining Genmab's petosemtamab with Incyte's INCB161734 and chemotherapy for first-line colorectal cancer with KRAS G12D mutation. Genmab will lead the study, with Incyte co-funding and supplying its drug. Both companies' shares closed at $43.79 and $115.71 respectively before the announcement.

$GMABMed

Genmab and Incyte Announce Clinical Trial Collaboration in Metastatic Colorectal Cancer

Genmab and Incyte are collaborating on clinical trials for metastatic colorectal cancer. The trials will evaluate the combination of Genmab's petosemtamab and Incyte's INCB161734 with standard chemotherapy. Petosemtamab targets EGFR and LGR5, while INCB161734 inhibits KRAS G12D. The companies aim to provide a new treatment option for patients with KRAS G12D-mutated metastatic colorectal cancer.