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disitamab vedotin

Phase 3

Urothelial Carcinoma | Small molecule | Oncology |Pfizer, Inc.|Last Updated: Jul 22, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedACTIVE_CONTROLLEDDMC
Total Trials2
Total Enrollment784

FDA Designations

No designations recorded

Clinical trial landscape

disitamab vedotin · 5 trials · 16 indications

Phase 3 1Phase 2 3Phase 1 1
NCT05911295Disitamab Vedotin With Pembrolizumab vs Chemotherapy in Previously Untreated Urothelial Cancer Expressing HER2Urothelial Carcinoma
ACTIVE NOT_RECRUITING412 Analytics
PHASE3ACTIVE NOT_RECRUITING
Disitamab Vedotin With Pembrolizumab vs Chemotherapy in Previously Untreated Urothelial Cancer Expressing HER2
Urothelial CarcinomaUnlock trial analytics

Study Endpoints

Primary Endpoints

Progression-free survival (PFS) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) by blinded independent central review (BICR)
Approximately 3 years

The time from randomization to first documentation of disease progression per RECIST v1.1 by BICR, or to death due to any cause.

Overall survival (OS)
Approximately 5 years

The time from date of randomization to date of death due to any cause.

Number of participants with dose limiting toxicities (DLTs) in dose escalation phase
Up to 28 days
Number of participants with adverse events (AEs)
Through 30 days after the last study treatment; approximately 5 years

Any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention

Number of participants with laboratory abnormalities
Through 30-37 days after the last study treatment: approximately 5 years
Number of participants with dose alterations
Through 30-37 days after the last study treatment: approximately 5 years
Objective response rate (ORR) per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST v1.1) by investigator assessment
Approximately 3 years

The proportion of participants with confirmed response (CR) or partial response (PR) according to RECIST v1.1.

Confirmed Objective Response Rate (ORR) per Response Evaluation in Solid Tumors version 1.1 (RECIST v1.1) by investigator assessment
Approximately 3 years

The proportion of patients who achieve a confirmed complete response (CR) or partial response (PR) according to RECIST v1.1 as assessed by the investigator

Confirmed Objective Response Rate (cORR) per Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1 (v1.1) by blinded independent central review (BICR) (Cohorts A, B, C, and G)
Duration of treatment; approximately 2 years

The proportion of participants with confirmed complete response (CR) or partial response (PR) according to RECIST v1.1

Incidence of adverse events (AEs) (Cohorts D and E)
Approximately 2 years

Any untoward medical occurrence in a clinical investigational participant administered a medicinal product and which does not necessarily have a causal relationship with this treatment.

Incidence of dose alterations (Cohorts D and E)
Approximately 2 years
Incidence of laboratory abnormalities (Cohorts D and E)
Approximately 2 years

To be summarized using descriptive statistics.

Incidence of electrocardiogram (ECG) abnormalities (Cohorts D and E)
Approximately 2 years
Change from baseline of left ventricular ejection fraction (LVEF) (Cohorts D and E)
Approximately 2 years
Pharmacokinetic (PK) parameter - Area under the curve (AUC) (Cohorts D and E)
Through 30-37 days following the last dose of DV; up to approximately 2 years

To be summarized using descriptive statistics.

PK parameter - Maximum concentration (Cmax) (Cohorts D and E)
Through 30-37 days following the last dose of DV; up to approximately 2 years

To be summarized using descriptive statistics.

PK parameter - Time to maximum concentration (Tmax) (Cohorts D and E)
Through 30-37 days following the last dose of DV; up to approximately 2 years

To be summarized using descriptive statistics.

PK parameter - Trough concentration (Ctrough) (Cohorts D and E)
Through 30-37 days following the last dose of DV; up to approximately 2 years

To be summarized using descriptive statistics.

Objective response (OR) by investigator assessment
From Cycle 1 Day 1 until disease progression by investigator assessment per RECIST version 1.1, or death due to any cause, whichever is earlier; up to approximately 2 years

The primary endpoint OR by investigator assessment is defined as the proportion of participants with confirmed CR or PR as determined by investigator per RECIST Version 1.1.

Secondary Endpoints

Objective response rate (ORR) per RECIST v1.1 by BICR
Approximately 3 years
ORR per RECIST v1.1 by investigator assessment
Approximately 3 years
Duration of Response (DOR) per RECIST v1.1 by BICR
Approximately 3 years
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Study Design & Arms

AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Disitamab vedotin armEXPERIMENTALdisitamab vedotin + pembrolizumab
Standard of care armACTIVE_COMPARATORgemcitabine + cisplatin OR carboplatin
Dose Escalation - Previously treated advanced GC/GEJC or breast cancerEXPERIMENTALdisitamab vedotin + tucatinib
Dose Optimization - HER2-low and HER2+ LA/mBCEXPERIMENTALdisitamab vedotin + tucatinib
Dose Optimization - HER2-low and HER2+ LA/mGC/GEJCEXPERIMENTALdisitamab vedotin + tucatinib
Dose Expansion - HER2-low LA/mBCEXPERIMENTALdisitamab vedotin + tucatinib
Dose Expansion - HER2+ LA/mBCEXPERIMENTALdisitamab vedotin + tucatinib
Dose Expansion - HER2-low LA/mGC/GEJCEXPERIMENTALdisitamab vedotin + tucatinib
Dose Expansion - HER2+ LA/mGC/GEJCEXPERIMENTALdisitamab vedotin + tucatinib
Head and neck cancerEXPERIMENTALDisitamab vedotin monotherapy
Non-small cell lung cancerEXPERIMENTALDisitamab vedotin monotherapy
Ovarian cancerEXPERIMENTALDisitamab vedotin monotherapy
Endometrial cancerEXPERIMENTALDisitamab vedotin monotherapy
Cohort A - DV monotherapy for HER2-positive tumor typesEXPERIMENTALDisitamab vedotin monotherapy
Cohort B - DV monotherapy for HER2-low tumor typesEXPERIMENTALDisitamab vedotin monotherapy
Cohort C - Non-randomized combination therapyEXPERIMENTALDisitamab vedotin + pembrolizumab
Cohort C - Randomized combination therapyEXPERIMENTALDisitamab vedotin + pembrolizumab
Cohort C - Randomized monotherapyEXPERIMENTALDisitamab vedotin monotherapy
Cohort D - DV monotherapy (Japan only)EXPERIMENTALDisitamab vedotin monotherapy
Cohort E - DV combination therapy (Japan only)EXPERIMENTALDisitamab vedotin + pembrolizumab
Cohort G - DV monotherapyEXPERIMENTALDisitamab vedotin
Cohort 1: HER2+ locally advanced or metastatic breast cancerEXPERIMENTALdisitamab vedotin monotherapy
Cohort 2: HR+, HER2-low locally advanced or metastatic breast cancerEXPERIMENTALdisitamab vedotin monotherapy
Cohort 3: HR+, HER2 ultra-low or HR-negative, HER2-low locally advanced or metastatic breast cancerEXPERIMENTALdisitamab vedotin monotherapy

Interventions

NameTypeDescription
disitamab vedotinDRUGGiven into the vein (IV; intravenous) every 2 weeks
pembrolizumabDRUG400mg given by IV every 6 weeks
gemcitabineDRUG1000 mg/m\^2 given by IV on days 1 and 8 of every 3-week cycle
cisplatinDRUG70 mg\^2 given by IV on day 1 of every 3-week cycle
carboplatinDRUGArea under the plasma concentration-time curve (AUC) 4.5 or 5 given by IV on day 1 of every 3-week cycle
tucatinibDRUG300mg given twice daily by mouth (orally)
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites268

Inclusion Criteria: * Histopathological confirmation of locally advanced unresectable or metastatic urothelial carcinoma (LA/mUC), including UC originating from the renal pelvis, ureters, bladder, or urethra. * Measurable disease by investigator assessment per RECIST v1.1. * Participant must not ha...

Countries:United StatesArgentinaAustraliaBelgiumBrazilCanadaChileCzechiaFranceGreeceHungaryIrelandIsraelItalyJapanNetherlandsPeruPortugalSingaporeSouth KoreaSpainSwedenTaiwanUnited KingdomGermanyTurkey (Türkiye)Puerto Rico
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Recent Changes (Last 90 Days)

LOWJul 22, 2026NCT04879329lastUpdatePostDate: changed
LOWJul 22, 2026NCT06003231lastUpdatePostDate: changed
LOWJul 22, 2026NCT06157892lastUpdatePostDate: changed
LOWJul 22, 2026NCT05911295lastUpdatePostDate: changed
LOWJul 22, 2026NCT04879329lastUpdatePostDate: changed
LOWJul 22, 2026NCT06157892lastUpdatePostDate: changed
LOWJul 22, 2026NCT06003231lastUpdatePostDate: changed
LOWJul 22, 2026NCT05911295lastUpdatePostDate: changed
HIGHJul 2, 2026NCT06157892Status: RECRUITING → ACTIVE_NOT_RECRUITING
HIGHJul 2, 2026NCT06157892Status: RECRUITING → ACTIVE_NOT_RECRUITING
HIGHJul 2, 2026NCT06157892Status: RECRUITING → ACTIVE_NOT_RECRUITING
MEDIUMJun 16, 2026NCT05911295primaryCompletionDate: changed
MEDIUMJun 16, 2026NCT05911295primaryCompletionDate: changed
MEDIUMJun 16, 2026NCT05911295primaryCompletionDate: changed
MEDIUMJun 16, 2026NCT05911295primaryCompletionDate: changed

Frequently asked questions about disitamab vedotin

What is Disitamab vedotin used for?

Disitamab vedotin is an investigational antibody-drug conjugate being studied for the treatment of HER2-expressing cancers, including breast cancer, non-small-cell lung cancer, and urothelial carcinoma. It is currently in clinical development and has not been approved by the FDA.

What does Disitamab vedotin target?

Disitamab vedotin targets HER2, a protein often overexpressed in certain cancers. As an antibody-drug conjugate, it is designed to deliver a cytotoxic agent to HER2-positive tumor cells. It is being evaluated in clinical trials for HER2-expressing breast cancer, urothelial carcinoma, and other solid tumors.

Who makes Disitamab vedotin?

Disitamab vedotin is being developed by Pfizer, Inc. (NYSE: PFE). The company is conducting clinical trials to evaluate the drug's safety and efficacy in various HER2-expressing cancers.

What phase is Disitamab vedotin in?

Disitamab vedotin is in Phase 1 clinical development. It is an investigational drug and has not received FDA approval. The company is currently enrolling patients in early-stage trials to assess its safety and tolerability.

What clinical trials is Disitamab vedotin in?

Disitamab vedotin is being studied in several trials, including NCT04879329 (Phase 2, urothelial carcinoma), NCT05911295 (Phase 3, urothelial carcinoma), NCT06157892 (Phase 2, solid tumors), and NCT06966453 (Phase 1, advanced breast cancer). These trials are actively recruiting or ongoing.

Is Disitamab vedotin the same as RC48?

Disitamab vedotin is also known by the code name RC48. It is an antibody-drug conjugate targeting HER2, being developed by Pfizer for HER2-expressing cancers. The drug is currently in Phase 1 clinical trials.