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OBX-115

Phase 1

Tumor Skin | Monoclonal antibody | Oncology |Obsidian Therapeutics, Inc.|Trials Updated: Oct 5, 2026

OBX-115 development status

Highest phase Phase 1
Registered trials 1 across 1 sponsor since Sep 2023

Success Probability

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Market & Valuation

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Trial Design

UNCONTROLLED
Total Trials1
Total Enrollment254

FDA Designations

No designations recorded

OBX-115 clinical trials

OBX-115 · 1 trial · 7 indications

Phase 1 1
NCT06060613Safety and Efficacy of OBX-115 in Advanced Solid TumorsTumor Skin
RECRUITING254 Analytics
PHASE1RECRUITING
Safety and Efficacy of OBX-115 in Advanced Solid Tumors
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Study Endpoints

Primary Endpoints

Incidence and nature of dose-limiting toxicities (DLTs)
28 Days

• Incidence of dose-limiting toxicities (DLTs) during the first 28 days after OBX-115 infusion (Phase 1).

The proportion of participants who have a confirmed complete response (CR) or partial response (PR) per RECIST v1.1
2 years

• The proportion of participants who have a confirmed complete response (CR) or partial response (PR) per RECIST v1.1 as assessed by Blinded Independent Central Review (BICR) from the date of OBX-115 infusion until disease progression, death, start of a new anticancer therapy, withdrawal of consent, or end of study, whichever comes first (Phase 2 Cohort 3)

Secondary Endpoints

The proportion of participants who have a confirmed CR or PR per RECIST v1.1
2 years
Incidence of AEs
2 years
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Participants with advanced solid tumorsEXPERIMENTALParticipants will receive conditioning therapy prior to administration of OBX-115 regimen.

Interventions

NameTypeDescription
OBX-115BIOLOGICALA tumor sample is obtained from each participant for autologous OBX-115 manufacture. After lymphodepletion including cyclophosphamide and fludarabine, participant will receive OBX-115 infusion, followed by short courses of acetazolamide.
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Eligibility Criteria

Age Range18 Years to N/A
SexALL
Healthy VolunteersNo
Study Sites10

Inclusion Criteria: 1. Participant must be 18 years of age or older at the time of signing the informed consent. 2. Participant has a histologically confirmed diagnosis of advanced/metastatic melanoma or relapsed refractory metastatic non-small cell lung cancer (NSCLC). 3. Cohort and indication spe...

Countries:United StatesAustralia
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