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ASP9801

Phase 1

Metastatic Cancer | Monoclonal antibody | Oncology |Merck & Company, Inc.|Last Updated: Apr 22, 2025

Success Probability

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Market & Valuation

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Trial Design

CONTROLLEDBiomarker
Total Trials1
Total Enrollment72

FDA Designations

No designations recorded

Clinical trial landscape

ASP9801 · 1 trial · 3 indications

Phase 1 1
NCT03954067A Study of an Intratumoral Oncolytic Virus in Patients With Advanced Metastatic Solid TumorsMetastatic Cancer
COMPLETED72 Analytics
PHASE1COMPLETED
A Study of an Intratumoral Oncolytic Virus in Patients With Advanced Metastatic Solid Tumors
Metastatic CancerUnlock trial analytics

Study Endpoints

Primary Endpoints

Dose Limiting Toxicities (DLT) - dose escalation part
Up to 28 days

Incidence of dose limiting toxicities

Safety and tolerability assessed by Adverse Events (AEs)
Up to 12 months

An AE is any untoward medical occurrence in a subject administered an investigational product (IP), and which does not necessarily have to have a causal relationship with this treatment. 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 IP whether or not considered related to the IP.

Number of participants with laboratory value abnormalities and/or adverse events
Up to 12 months

Number of participants with potentially clinically significant laboratory values.

Number of participants with vital sign abnormalities and /or adverse events
Up to 12 months

Number of participants with potentially clinically significant vital sign values.

Safety assessed by 12- lead electrocardiograms (ECGs) adverse events
Up to 12 months

12-lead ECGs will be read and assessed locally. Any clinically significant adverse changes on the ECG will be reported as Adverse Events.

Secondary Endpoints

Percent change from baseline in antitumor activity of ASP9801
Up to 12 months
Objective Response Rate per imRECIST
Up to 12 months
ASP9801 viral DNA in blood
Up to 12 months
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Study Design & Arms

AllocationNON_RANDOMIZED
MaskingNONE
ModelSEQUENTIAL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Dose Escalation - cutaneous or subcutaneous lesionsEXPERIMENTALParticipants will receive ASP9801 (1x10\^7 pfu/mL) on days 1 and 15 of 28 day cycles to determine the recommended phase 2 dose. After cycle 2, participants who have not met any discontinuation criteria and receiving clinical benefit may be treated on continuous cycles until treatment discontinuation criteria are met.
Dose Escalation - visceral lesionsEXPERIMENTALParticipants will receive ASP9801 (1x10\^8 pfu/mL) on days 1 and 15 of 28 day cycles to determine the recommended phase 2 dose. After cycle 2, participants who have not met any discontinuation criteria and receiving clinical benefit may be treated on continuous cycles until treatment discontinuation criteria are met.
Dose Expansion (Monotherapy) - cutaneous or subcutaneous lesionsEXPERIMENTALParticipants will receive ASP9801 (1x10\^8 pfu/mL) on days 1 and 15 of 28 day cycles at the dose recommended by the dose escalation phase. After cycle 2, participants who have not met any discontinuation criteria and receiving clinical benefit may be treated on continuous cycles until treatment discontinuation criteria are met.
Dose Expansion (Monotherapy) - visceral lesionsEXPERIMENTALParticipants will receive ASP9801 (5x10\^8 pfu/mL) on days 1 and 15 of 28 day cycles at the dose recommended by the dose escalation phase. After cycle 2, participants who have not met any discontinuation criteria and receiving clinical benefit may be treated on continuous cycles until treatment discontinuation criteria are met.
Dose Expansion (Monotherapy Induction) - cutaneous or subcutaneous lesionsEXPERIMENTALParticipants will receive ASP9801 (5x10\^8 pfu/mL) on days 1, 8, 15 and 22 of the first 28 day cycle. Participants will receive ASP9801 on days 1 and 15 on the second 28 day cycle at the dose recommended by the dose escalation phase. After cycle 2, participants who have not met any discontinuation criteria and receiving clinical benefit may be treated on continuous cycles until treatment discontinuation criteria are met.
Dose Expansion (Combination Therapy) - cutaneous or subcutaneous lesionsEXPERIMENTALParticipants will receive ASP9801 (1x10\^8 pfu/mL) on days 1 and 15 of 28 day cycles at the dose recommended by the dose escalation phase. Participants will also receive pembrolizumab starting on day 1 and once every 6 weeks. After cycle 2, participants who have not met any discontinuation criteria and receiving clinical benefit may be treated on continuous cycles until treatment discontinuation criteria are met.
Dose Expansion (Combination Induction Therapy) - cutaneous or subcutaneous lesionsEXPERIMENTALParticipants will receive ASP9801 (5x10\^8 pfu/mL) on days 1, 8, 15 and 22 of first 28 day cycle at the dose recommended by the dose escalation phase. Participants will also receive pembrolizumab starting on day 1 and once every 6 weeks. Participants will receive ASP9801 on days 1 and 15 on the second 28 day cycle at the dose recommended by the dose escalation phase. After cycle 2, participants who have not met any discontinuation criteria and receiving clinical benefit may be treated on continuous cycles until treatment discontinuation criteria are met.
Dose Expansion (Combination Therapy) - visceral lesionsEXPERIMENTALParticipants will receive ASP9801 (5x10\^8 pfu/mL) on days 1 and 15 of 28 day cycles at the dose recommended by the dose escalation phase. Participants will also receive pembrolizumab starting on day 1 and once every 6 weeks. After cycle 2, participants who have not met any discontinuation criteria and receiving clinical benefit may be treated on continuous cycles until treatment discontinuation criteria are met.

Interventions

NameTypeDescription
ASP9801BIOLOGICALAdministered by intratumoral injection
PembrolizumabCOMBINATION_PRODUCTAdministered by Intravenous Infusion
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites17

Inclusion Criteria: * Subject must have histologically- or cytologically-confirmed diagnosis of advanced or metastatic solid tumor(s). * Subject has measurable disease as determined by Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1. At least 1 lesion must be suitable for intratum...

Countries:United States
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Competitive Landscape -Cancer 5 trials (matched to "Metastatic Cancer")