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DB-1305/BNT325

Phase 1

Advanced Solid Tumor | Small molecule | Oncology |BioNTech SE|Last Updated: May 12, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment1,123

FDA Designations

FAST_TRACK

Clinical trial landscape

DB-1305/BNT325 · 1 trial · 1 indication

Phase 1 1
NCT05438329First-in-human Study of DB-1305/BNT325 for Advanced/Metastatic Solid TumorsAdvanced Solid Tumor
ACTIVE NOT_RECRUITING1,123 Analytics
PHASE1ACTIVE NOT_RECRUITING
First-in-human Study of DB-1305/BNT325 for Advanced/Metastatic Solid Tumors
Advanced Solid TumorUnlock trial analytics

Study Endpoints

Primary Endpoints

Phase 1: Percentage of Participants with Dose-Limiting Toxicities (DLTs) as assessed by National Cancer Institute - Common Terminology Criteria for Adverse Events (NCI-CTCAE) v5.0.
up to 28 days after Cycle 1 Day 1

Percentage of participants in Part 1 with DLTs

Phase 1: Percentage of Participants with Treatment Emergent Adverse Events (TEAEs) as assessed by CTCAE v5.0.
Up to 30 days after last study treatment administration or before starting new anticancer treatment, whichever comes first.

Percentage of participants with TEAEs in Part 1 graded according to NCI CTCAE v5.0

Phase 1: Percentage of Participants with Serious Adverse Events (SAEs) as assessed by CTCAE v5.0.
Up 30 days after last study treatment administration or before starting new anticancer treatment, whichever comes first.

Percentage of Participants with SAEs in Part 1 graded according to NCI CTCAE v5.0

Maximum Tolerated Dose (MTD) of DB-1305/BNT325
At the end of Cycle 1 (each cycle is up to 21 days)

MTD on the data collected during Part 1

Phase 1: RP2D of DB-1305/BNT325
From first study treatment administration until the initiation of Phase 2a, approximately up to 12 months.

RP2D of DB-1305/BNT325 based on the data collected during Part 1

Phase 2a: Percentage of Participants with TEAEs as assessed by CTCAE v5.0.
Up to 30 days after last study treatment administration or before starting new anticancer treatment, whichever comes first.

Percentage of participants with TEAEs in Part 2 graded according to NCI CTCAE v5.0 (secondary outcome measure in cohort 3)

Phase 2a: Percentage participants with SAEs as assessed by CTCAE v5.0.
Up to 30 days after last study treatment administration or before starting new anticancer treatment, whichever comes first.

Percentage of participants with SAEs in Part 2 graded according to NCI CTCAE v5.0 (secondary outcome measure in cohort 3)

Phase 2a: Objective Response Rate (ORR) as assessed by Response Evaluation Criteria in Solid Tumors (RECIST) 1.1.
Up to disease progression or death or before starting new anticancer treatment or withdrawal from the trial, whichever comes first, approximately up to 12 months.

The percentage of subjects who had a best response rating of CR and PR

Secondary Endpoints

Phase 1: ORR will be determined from tumor assessments by investigator per RECIST 1.1
with 8 cycles (each cycle is up to 21 days)
Phase 1 & Phase 2a: duration of response (DoR) will be determined from tumor assessments by investigator per RECIST 1.1
with 8 cycles (each cycle is up to 21 days)
Phase 1 & Phase 2a: disease-control rate (DCR)
with 8 cycles (each cycle is up to 21 days)
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
DB-1305/BNT325 Dose Level 1EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 1
DB-1305/BNT325 Dose Level 2EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 2
DB-1305/BNT325 Dose Level 3EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 3
DB-1305/BNT325 Dose Level 4EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 4
DB-1305/BNT325 Dose Level 5EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 5
DB-1305/BNT325 Dose Level 6EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 6
DB-1305/BNT325 Dose Level 7EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 7
DB-1305/BNT325 in combination with pembrolizumabEXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 in combination with pembrolizumab
DB-1305/BNT325 Dose Expansion 1EXPERIMENTALsubjects with Non-Small Cell Lung Cancer (NSCLC) with actionable genetic alterations (AGAs) who will receive DB-1305/BNT325 on either dose level 1 or dose level 2
DB-1305/BNT325 Dose Expansion 2EXPERIMENTALEnrolled subjects with NSCLC without AGAs who will receive DB-1305/BNT325 on either dose level 1 or dose level 2
DB-1305/BNT325 Dose Expansion 3EXPERIMENTALEnrolled subjects with OC who will receive DB-1305/BNT325 on either dose level 1 or dose level 2
DB-1305/BNT325 Dose Expansion 4EXPERIMENTALEnrolled subjects with BC who will receive DB-1305/BNT325 on a selected dose level (RP2D)
DB-1305/BNT325 Dose Expansion 5EXPERIMENTALEnrolled subjects with Triple-Negative Breast Cancer (TNBC) who have progressed on or after standard systemic treatments and without prior treatment of sacituzumab govitecan who will receive DB-1305/BNT325 on a selected dose level (RP2D)
DB-1305/BNT325 Dose Expansion 6EXPERIMENTALEnrolled subjects with TNBC with treatment failure on sacituzumab govitecan who will receive DB-1305/BNT325 on a selected dose level (RP2D)
DB-1305/BNT325 Dose Expansion 7EXPERIMENTALEnrolled subjects with EC who will receive DB-1305/BNT325 on a selected dose level (RP2D)
DB-1305/BNT325 Dose Expansion 8EXPERIMENTALEnrolled subjects with malignant mesothelioma will receive DB-1305/BNT325 on a selected dose level (RP2D)
DB-1305/BNT325 Dose Expansion 9EXPERIMENTALEnrolled subjects with Cervical Cancer (CC) who will receive DB-1305/BNT325 on a selected dose level (RP2D)
Experimental: DB-1305/BNT325 Dose Expansion 10EXPERIMENTALEnrolled subjects with pancreatic cancer who will receive DB-1305/BNT325 on a selected dose level (RP2D)
DB-1305/BNT325 Dose Expansion 11EXPERIMENTALEnrolled subjects with Castration-Resistant Prostate Cancer (CRPC) who will receive DB-1305/BNT325 on a selected dose level (RP2D)
DB-1305/BNT325 Dose Expansion PB1EXPERIMENTALEnrolled subjects with NSCLC without AGAs who will receive DB-1305/BNT325 on a selected dose level in combination with pembrolizumab
Experimental: DB-1305/BNT325 Dose Level 8EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 8
Experimental: DB-1305/BNT325 in combination with BNT327EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 in combination with BNT327
Experimental: DB-1305/BNT325 Dose Expansion PM1EXPERIMENTALEnrolled subjects with NSCLC without AGAs who will receive DB-1305/BNT325 on a selected dose level in combination with BNT327
Experimental: DB-1305/BNT325 Dose Expansion PM2EXPERIMENTALEnrolled subjects with NSCLC with AGAs who will receive DB-1305/BNT325 on a selected dose level in combination with BNT327
Experimental: DB-1305/BNT325 Dose Expansion PM3EXPERIMENTALEnrolled subjects with CC who will receive DB-1305/BNT325 on a selected dose level in combination with BNT327
Experimental: DB-1305/BNT325 Dose Expansion PM4EXPERIMENTALEnrolled subjects with OC who will receive DB-1305/BNT325 on a selected dose level in combination with BNT327
Experimental: DB-1305/BNT325 Dose Expansion PM5EXPERIMENTALEnrolled subjects with TNBC who will receive DB-1305/BNT325 on a selected dose level in combination with BNT327
DB-1305/BNT325 Dose Expansion 12EXPERIMENTALEnrolled subjects with head and neck cancer who will receive DB-1305/BNT325 on a selected dose level (RP2D)
DB-1305/BNT325 Dose Level 9EXPERIMENTALEnrolled subjects will receive DB-1305/BNT325 at Dose Level 9
DB-1305/BNT325 Dose Expansion PM6EXPERIMENTALEnrolled subjects with NSCLC without AGA who will receive DB-1305/BNT325 on a selected dose level in combination with BNT327

Interventions

NameTypeDescription
DB-1305/BNT325DRUGAdministered Injection of Vein (I.V.)
PembrolizumabCOMBINATION_PRODUCTAdministered I.V.
BNT327DRUGAdministered I.V.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites93

Inclusion Criteria: * Male or female adults (defined as ≥ 18 years of age or acceptable age according to local regulations at the time of voluntarily signing of informed consent). * Histologically or cytologically confirmed unresectable advanced/ metastatic solid tumors who have relapsed or progres...

Countries:United StatesChinaPuerto Rico
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Advanced Solid Tumor")

Frequently asked questions about DB-1305/BNT325

What is DB-1305/BNT325 used for?

DB-1305/BNT325 is an investigational small molecule being developed for the treatment of advanced solid tumors. It is currently in Phase 1 clinical development, and the ongoing first-in-human study is evaluating its safety and efficacy in patients with advanced or metastatic solid tumors.

Who makes DB-1305/BNT325?

DB-1305/BNT325 is being developed by BioNTech SE, a biotechnology company traded on the NASDAQ under the ticker symbol BNTX. The company is conducting a Phase 1 clinical trial to evaluate this investigational therapy in patients with advanced solid tumors.

What phase is DB-1305/BNT325 in?

DB-1305/BNT325 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA. The drug has received Fast Track designation from the FDA, which is intended to expedite the development and review of therapies for serious conditions.

What clinical trials is DB-1305/BNT325 in?

DB-1305/BNT325 is being studied in a Phase 1 first-in-human trial with the identifier NCT05438329. This trial is active but not recruiting, with an estimated enrollment of 1123 participants. The study is being conducted in the United States, China, and Puerto Rico for patients aged 18 years and older with advanced solid tumors.

Is DB-1305/BNT325 the same as BNT325?

Yes, DB-1305/BNT325 is also known as BNT325. The drug is being developed by BioNTech SE and is currently in Phase 1 clinical trials for advanced solid tumors. The ongoing study, NCT05438329, is a first-in-human trial evaluating this investigational therapy.