Recent Updates
Recently added Catalysts

GEN1042

Phase 1

Malignant Solid Tumor | Monoclonal antibody | Oncology |Genmab A/S|Last Updated: Aug 4, 2026

Target and mechanism

Molecular targetCD40 and 4-1BB
Target classProtein
ModalityMonoclonal antibody

Success Probability

Subscribe to view

Market & Valuation

Subscribe to view

Trial Design

CONTROLLEDDMC
Total Trials2
Total Enrollment358

FDA Designations

No designations recorded

Clinical trial landscape

GEN1042 · 2 trials · 6 indications

Phase 1 2
NCT06057038A Safety Trial of GEN1042 in Japanese Subjects With Malignant Solid TumorsMalignant Solid Tumor
ACTIVE NOT_RECRUITING8 Analytics
NCT04083599GEN1042 Safety Trial and Anti-tumor Activity in Participants With Malignant Solid TumorsMalignant Solid Tumor
ACTIVE NOT_RECRUITING350 Analytics
PHASE1ACTIVE NOT_RECRUITING
A Safety Trial of GEN1042 in Japanese Subjects With Malignant Solid Tumors
Malignant Solid TumorUnlock trial analytics
PHASE1ACTIVE NOT_RECRUITING
GEN1042 Safety Trial and Anti-tumor Activity in Participants With Malignant Solid Tumors
Malignant Solid TumorUnlock trial analytics

Study Endpoints

Primary Endpoints

Number of Participants with Dose Limiting Toxicities (DLTs)
During the first cycle (Cycle length = 21 days)

Toxicities will be graded for severity according to the National Cancer Institute-Common Terminology Criteria for Adverse Events (NCI-CTCAE), version (v) 5.0.

Percentage of Participants with Adverse Events (AEs)
From first dose until the end of the treatment (approximately 3 years)

An AE is any untoward medical occurrence in a participant or clinical trial participant, temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. An AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with the use of a medicinal product.

Dose Escalation and Safety Run-in Parts: Number of Participants With Dose-Limiting Toxicities (DLTs)
First Cycle (21 days)

Toxicities will be graded for severity according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI-CTCAE) criteria version 5.0

Dose Expansion: Objective Response Rate (ORR)
Up to approximately 2 years and 4 months

ORR is defined as the percentage of participants with best overall response (BOR) \[complete or partial response (PR or CR)\] based on Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 as assessed by the investigator.

Secondary Endpoints

Maximum (Peak) Plasma Concentration (Cmax) of GEN1042
Predose and postdose at multiple timepoints up to end of treatment (approximately 3 years)
Area Under the Concentration-time Curve (AUC) From Time Zero to Last Quantifiable Sample (AUClast) of GEN1042
Predose and postdose at multiple timepoints up to end of treatment (approximately 3 years)
Time to Reach Cmax (Tmax) of GEN1042
Predose and postdose at multiple timepoints up to end of treatment (approximately 3 years)
Unlock Study Endpoints

Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Monotherapy (non-CNS Malignant Solid Tumors): GEN1042EXPERIMENTAL -
Combination Therapy Cohort 1 [HNSCC]: GEN1042+Pembro+ChemotherapyEXPERIMENTAL -
Combination Therapy Cohort 2 [HNSCC and NSCLC]: GEN1042+PembroEXPERIMENTAL -
Combination Therapy Cohort 3 [HNSCC]: GEN1042+Pembro+ChemotherapyEXPERIMENTAL -
Combination Therapy Cohort 4 [HNSCC and NSCLC]: GEN1042+PembroEXPERIMENTAL -
Monotherapy - Dose Escalation and Dose Expansion PartsEXPERIMENTAL -
Combination Therapy - Safety Run-in and Expansion PartsEXPERIMENTAL -

Interventions

NameTypeDescription
GEN1042BIOLOGICALIntravenous
PembrolizumabDRUGIntravenous
CisplatinDRUGIntravenous
CarboplatinDRUGIntravenous
5-FluorouracilDRUGIntravenous
5-FUDRUGIntravenous
GemcitabineDRUGIntravenous
Nab paclitaxelDRUGIntravenous
PemetrexedDRUGIntravenous
PaclitaxelDRUGIntravenous
Unlock Study Design Details

Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites3

Key Inclusion Criteria: 1. Must have measurable disease according to RECIST v1.1. 2. Eastern Cooperative Oncology Group (ECOG) performance status score of 0-1. 3. Acceptable organ and bone marrow function. 4. Participant must have a life expectancy of at least 3 months. Key Exclusion Criteria: 1....

Countries:JapanUnited StatesDenmarkFranceGeorgiaGermanyIsraelItalyMoldovaSouth KoreaSpainTaiwanUnited Kingdom
Unlock Eligibility Criteria

Recent Changes (Last 90 Days)

LOWAug 4, 2026NCT04083599lastUpdatePostDate: changed
LOWAug 4, 2026NCT06057038lastUpdatePostDate: changed
LOWAug 4, 2026NCT04083599lastUpdatePostDate: changed
LOWAug 4, 2026NCT06057038lastUpdatePostDate: changed
LOWJul 7, 2026NCT04083599Completion: 2026-11 → 2027-01
HIGHJul 7, 2026NCT06057038Enrollment: 42 → 8
LOWJul 7, 2026NCT04083599Completion: 2026-11 → 2027-01
HIGHJul 7, 2026NCT06057038Enrollment: 42 → 8

Frequently asked questions about GEN1042

What is GEN1042 used for in malignant solid tumors?

GEN1042 is an investigational monoclonal antibody being studied for the treatment of malignant solid tumors, including non-small cell lung cancer, colorectal cancer, melanoma, head and neck squamous cell carcinoma, and pancreatic ductal adenocarcinoma. It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities.

What does GEN1042 target?

GEN1042 targets CD40 and 4-1BB, two proteins involved in immune system regulation. By engaging these targets, the antibody is designed to modulate immune responses against tumor cells. This bispecific mechanism is being evaluated in early-stage clinical trials for its potential anti-tumor activity in patients with malignant solid tumors.

Who makes GEN1042?

GEN1042 is being developed by Genmab A/S, a biotechnology company listed on the Nasdaq under the ticker GMAB. The company is conducting clinical trials to evaluate the safety and efficacy of this investigational therapy in patients with malignant solid tumors.

What phase is GEN1042 in?

GEN1042 is in Phase 1 clinical development. It is an investigational drug, meaning it has not been approved by the FDA or other regulatory agencies. The ongoing Phase 1 trials are designed to assess its safety, tolerability, and preliminary anti-tumor activity in patients with malignant solid tumors.

What clinical trials is GEN1042 in?

GEN1042 is being evaluated in two Phase 1 clinical trials. NCT04083599 is an active, non-recruiting study with 350 participants across multiple countries, including the United States, Denmark, and Japan. NCT06057038 is a separate trial in Japanese subjects with malignant solid tumors, enrolling 8 participants. Both trials are active but not currently recruiting.

Is GEN1042 the same as any other drug?

GEN1042 is a distinct investigational monoclonal antibody developed by Genmab A/S. It is not known to be identical to any other approved or investigational drug. Its unique mechanism targets both CD40 and 4-1BB, setting it apart from other cancer immunotherapies in development.