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Lu-DWJ155

Phase 1

Breast Cancer | Small molecule | Oncology |Novartis AG|Last Updated: Aug 27, 2026

Target and mechanism

ModalitySmall molecule

Also known as [177Lu]Lu-DWJ155

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDDMC
Total Trials1
Total Enrollment156

FDA Designations

No designations recorded

Clinical trial landscape

Lu-DWJ155 · 1 trial · 4 indications

Phase 1 1
NCT07660055Study of [177Lu]Lu-DWJ155 and [68Ga]Ga-DWJ155 in Patients With Solid TumorsBreast Cancer
RECRUITING156 Analytics
PHASE1RECRUITING
Study of [177Lu]Lu-DWJ155 and [68Ga]Ga-DWJ155 in Patients With Solid Tumors
Breast CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Incidence and severity of Adverse Events (AEs) and Serious Adverse Events (SAEs) of [177Lu]Lu-DWJ155
Up to approximately 53 months

Incidence and severity of AEs and SAEs, including changes in laboratory values, vital signs, echocardiograms (ECGs), and imaging assessments qualifying and reported as AEs.

Incidence of dose-limiting toxicities (DLTs) of [177Lu]Lu-DWJ155
Up to 6 weeks

A DLT is defined as an adverse event or abnormal laboratory value of Common Terminology Criteria for Adverse Events (CTCAE) grade ≥ 3 assessed as unrelated to disease, disease progression, inter-current illness/injury or concomitant medications that occurs within the first treatment cycle. Other clinically significant toxicities may be considered to be DLTs, even if not CTCAE grade 3 or higher.

Frequency of dose interruptions and reductions [177Lu]Lu-DWJ155
11 months

Number of participants with dose interruptions and/or reductions to assess the tolerability.

Dose intensity [177Lu]Lu-DWJ155
11 months

Dose intensity defined as the ratio of actual cumulative dose received and actual duration of exposure

Secondary Endpoints

Overall Response Rate (ORR) per RECIST v1.1
Up to approximately 53 months
Disease Control Rate (DCR) per RECIST v1.1
Up to approximately 53 months
Duration of Response (DOR) per RECIST v1.1
Up to approximately 53 months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Dose EscalationEXPERIMENTALPatients will receive \[68Ga\]Ga-DWJ155 and, if eligible, \[177Lu\]Lu-DWJ155. In this part, multiple dose levels of \[177Lu\]Lu-DWJ155 will be evaluated.
Dose ExpansionEXPERIMENTALPatients will receive \[68Ga\]Ga-DWJ155 and, if eligible, \[177Lu\]Lu-DWJ155 at the recommended dose established during the dose escalation part.

Interventions

NameTypeDescription
[68Ga]Ga-DWJ155DIAGNOSTIC_TESTRadioligand imaging agent
[177Lu]Lu-DWJ155DRUGRadioligand therapy
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites5

Inclusion Criteria: * Male or female patients age ≥ 18 years. * Patients with one of the following histologically or cytologically confirmed and documented malignancies who have progressed on or been intolerant to standard of care therapy, and are not considered appropriate for any standard therapy...

Countries:United StatesAustraliaCanadaJapan
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Competitive Landscape -Breast Cancer 402 trials

Top 20 of 92 competitors

CompanyTickerTrialsLead PhaseDrugs
AstraZeneca PLCAZN47PHASE3Fulvestrant, Capivasertib
Merck & Co., Inc.MRK12PHASE3Pembrolizumab, Paclitaxel, Doxorubicin, Epirubicin, Cyclophosphamide
Eli Lilly and CompanyLLY27PHASE3Abemaciclib, Standard Adjuvant Endocrine Therapy
BioNTech SE Sponsored ADRBNTX7PHASE3DB-1303/BNT323, T-DM1
Gilead Sciences, Inc.GILD13PHASE3Sacituzumab Govitecan-hziy, Eribulin, Capecitabine Product, Gemcitabine, Vinorelbine
Novartis AG Sponsored ADRNVS30PHASE3Ribociclib
Pfizer Inc.PFE34PHASE3ARV-471, Fulvestrant
BeOne Medicines Ltd. Sponsored ADRONC5PHASE3BGB-43395, Letrozole, Abemaciclib, Palbociclib, Ribociclib
Olema Pharmaceuticals, Inc.OLMA5PHASE3Palazestrant, Fulvestrant, Anastrozole, Letrozole, Exemestane
Jazz Pharmaceuticals Public Limited CompanyJAZZ3PHASE3Zanidatamab, Trastuzumab, Eribulin, Vinorelbine, Gemcitabine
Celcuity Inc.CELC3PHASE3Gedatolisib, Palbociclib, Fulvestrant, Alpelisib
Relay Therapeutics, Inc.RLAY2PHASE3Zovegalisib, Capivasertib, Fulvestrant
GSK plc Sponsored ADRGSK2PHASE3Niraparib
Greenwich LifeSciences, Inc.GLSI1PHASE3GLSI-100
Bristol-Myers Squibb CompanyBMY5PHASE2Iza-bren, Nab-paclitaxel, Paclitaxel, Capecitabine, Carboplatin
BriaCell Therapeutics CorpBCTX2PHASE3SV-BR-1-GM, Cyclophosphamide, Interferon infiltration of the inoculation site, Retifanlimab, Treatment of Physician's Choice
Incyte CorporationINCY4PHASE2Ruxolitinib, Capecitabine, Regorafenib
Natera, Inc.NTRA3PHASE2Discontinuation of the anti-HER2 maintenance therapy
Puma Biotechnology, Inc.PBYI3PHASE2Neratinib, Loperamide, Colesevelam
Atossa Therapeutics, Inc.ATOS1PHASE2endoxifen, goserelin
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Recent Changes (Last 90 Days)

LOWAug 27, 2026NCT07660055lastUpdatePostDate: changed
LOWAug 27, 2026NCT07660055lastUpdatePostDate: changed
LOWJul 28, 2026NCT07660055lastUpdatePostDate: changed
LOWJul 28, 2026NCT07660055lastUpdatePostDate: changed
LOWJul 27, 2026NCT07660055lastUpdatePostDate: changed
LOWJul 27, 2026NCT07660055lastUpdatePostDate: changed
LOWJul 27, 2026NCT07660055lastUpdatePostDate: changed
LOWJun 23, 2026NCT07660055Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 23, 2026NCT07660055Status: NOT_YET_RECRUITING → RECRUITING
LOWJun 22, 2026NCT07660055NEW_TRIAL: changed
LOWJun 22, 2026NCT07660055NEW_TRIAL: changed

Frequently asked questions about Lu-DWJ155

What is Lu-DWJ155 used for in breast cancer?

Lu-DWJ155 is an investigational small molecule being studied for the treatment of breast cancer. It is currently in Phase 1 clinical development, and the ongoing trial also includes patients with non-small cell lung cancer, gastric/gastroesophageal junction cancer, and bladder cancer.

What does Lu-DWJ155 target?

Lu-DWJ155 is a radioligand therapy, but its specific molecular target has not been disclosed. The drug is being studied in a Phase 1 trial that includes a companion diagnostic agent, [68Ga]Ga-DWJ155, which is used for imaging.

Who makes Lu-DWJ155?

Lu-DWJ155 is being developed by Novartis AG, which trades on the New York Stock Exchange under the ticker NVS. The company is conducting a Phase 1 clinical trial of the drug in multiple countries.

What phase is Lu-DWJ155 in?

Lu-DWJ155 is in Phase 1 clinical development. It is an investigational drug and has not been approved by regulatory authorities. The ongoing Phase 1 trial is currently recruiting participants.

What clinical trials is Lu-DWJ155 in?

Lu-DWJ155 is being evaluated in a single Phase 1 clinical trial, identified as NCT07660055. This study is recruiting 156 participants with solid tumors, including breast cancer, and is being conducted in the United States, Australia, Canada, and Japan.

Is Lu-DWJ155 the same as [177Lu]Lu-DWJ155?

Yes, Lu-DWJ155 is also known as [177Lu]Lu-DWJ155. The drug is a radioligand therapy, and the companion imaging agent used in the trial is [68Ga]Ga-DWJ155.