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AMG 305

Phase 1

Advanced Solid Tumors | Small molecule | Oncology |Amgen Inc.|Last Updated: Feb 17, 2026

Success Probability

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Market & Valuation

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Trial Design

CONTROLLED
Total Trials1
Total Enrollment37

FDA Designations

No designations recorded

Clinical trial landscape

AMG 305 · 1 trial · 1 indication

Phase 1 1
NCT05800964Study to Explore the Safety, Tolerability, and Pharmacokinetics of AMG 305 in Subjects With Advanced Solid TumorsAdvanced Solid Tumors
COMPLETED37 Analytics
PHASE1COMPLETED
Study to Explore the Safety, Tolerability, and Pharmacokinetics of AMG 305 in Subjects With Advanced Solid Tumors
Advanced Solid TumorsUnlock trial analytics

Study Endpoints

Primary Endpoints

Percentage of Participants who Experience Dose Limiting Toxicities (DLTs)
Day 1 to Day 28
Percentage of Participants who Experience Treatment-Emergent Adverse Events (TEAEs)
Up to a maximum of 2 years

Adverse events (AEs) are defined as any untoward medical occurrence in a clinical study participant irrespective of a causal relationship with the study treatment. TEAEs are any event that occurs after the participant has received study treatment. Any clinically significant changes in vital signs, electrocardiograms (ECGs), and clinical laboratory tests, as assessed by the investigator, will also be reported as TEAEs.

Percentage of Participants who Experience Treatment-Related Adverse Events
Up to a maximum of 2 years

Secondary Endpoints

Maximum Serum Concentration (Cmax) of AMG 305
Up to a maximum of 2 years
Minimum Serum Concentration (Cmin) of AMG 305
Up to a maximum of 2 years
Area Under the Concentration-Time Curve (AUC) of AMG 305
Up to a maximum of 2 years
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Part A: Dose ExplorationEXPERIMENTALParticipants will receive escalating doses of AMG 305.
Part B: Dose ExpansionEXPERIMENTALParticipants with selected solid tumors will receive the RP2D identified in Part A.

Interventions

NameTypeDescription
AMG 305DRUGShort-term intravenous (IV) infusion
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Eligibility Criteria

Age Range18 Years to 100 Years
SexALL
Healthy VolunteersNo
Study Sites27

Key Inclusion Criteria: * Participant has provided informed consent to the main study prior to initiation of any study specific activities/procedures * Male or female participants age ≥ 18 years * Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 * Participants with histologica...

Countries:United StatesAustraliaCanadaFranceGermanyJapanSouth KoreaSpainUnited Kingdom
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Competitive Landscape -Other Solid Tumors 9 trials (matched to "Advanced Solid Tumors")

Frequently asked questions about AMG 305

What is AMG 305 used for?

AMG 305 is an investigational small molecule being developed for the treatment of advanced solid tumors. It is currently in Phase 1 clinical development and is not yet approved by regulatory authorities. The drug is being studied to evaluate its safety, tolerability, and pharmacokinetics in patients with advanced solid tumors.

Who makes AMG 305?

AMG 305 is being developed by Amgen Inc., a biotechnology company traded on the NASDAQ under the ticker symbol AMGN. The company is conducting clinical research to evaluate the drug's potential in treating advanced solid tumors.

What phase is AMG 305 in?

AMG 305 is in Phase 1 clinical development. It is an investigational drug and has not been approved by the FDA or any other regulatory agency. The Phase 1 trial has been completed, and the drug remains in early-stage clinical research for advanced solid tumors.

What clinical trials is AMG 305 in?

AMG 305 has one completed Phase 1 clinical trial registered as NCT05800964. This study explored the safety, tolerability, and pharmacokinetics of AMG 305 in subjects with advanced solid tumors. The trial enrolled 37 participants across multiple countries, including the United States, Australia, Canada, France, Germany, Japan, South Korea, Spain, and the United Kingdom.

Is AMG 305 the same as any other drug?

No alternative names for AMG 305 have been disclosed. The drug is identified solely by its development code AMG 305 and is being studied under this name in clinical trials. It is not known to be marketed under any other brand name.