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DP CD8 TIL

Phase 1

HNSCC | Monoclonal antibody | Oncology |Phio Pharmaceuticals Corp.|Last Updated: Jan 8, 2026

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedCONTROLLEDBiomarker
Total Trials1
Total Enrollment18
FDA Designations
No designations recorded
Clinical Trials (1)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT05902520Adoptive Cell Therapy Using Cancer Specific CD8+ Tumor Infiltrating Lymphocytes in Adult Patients With Solid TumorsPHASE1 ACTIVE NOT_RECRUITING 18Jun 19, 2023Dec 31, 2026Jan 8, 20261 United States
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Study Endpoints
Primary Endpoints
Safety of DP CD8 TIL
12 weeks after cell infusion, then per PI discretion

Frequency and severity of treatment-related adverse events as assessed by CTCAE v5.0 in participants treated with DP CD8 TIL adoptive cell therapy with and without ex vivo siRNA PD-1 modulation after lymphodepleting chemotherapy and followed by high-dose and low-dose IL-2.

Secondary Endpoints
Efficacy of DP CD8 TIL
1, 2, 3, 4, 8, and 12 weeks after cell infusion, then per PI discretion
Compare persistence of DP CD8 TIL and DP CD8 TIL KD in peripheral blood
1, 2, 4, 8, and 12 weeks after cell infusion, then per PI discretion
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
DP CD8 TILEXPERIMENTALAdoptive Cell Transfer of tumor infiltrating lymphocytes that were selected for tumor reactivity by the expression of cell surface proteins CD39 an CD103 and expanded in vitro. A suspension of 1-40 billion cells will be delivered one time by intravenous infusion.
DP CD8 TIL KDEXPERIMENTALAdoptive Cell Transfer of tumor infiltrating lymphocytes that were selected for tumor reactivity by the expression of cell surface proteins CD39 and CD103 and expanded in vitro in the presence of PH-762, a silencing RNA that reduces the expression of the checkpoint inhibitor PD-1. A suspension of 1-40 billion cells will be delivered one time by intravenous infusion.
Interventions
NameTypeDescription
DP CD8 TILBIOLOGICALintravenous infusion of T cell suspension
DP CD8 TIL KDBIOLOGICALintravenous infusion of T cell suspension
Low dose IL-2BIOLOGICALLow dose IL-2 delivered subcutaneously for 1, 2 or 3 weeks
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Eligibility Criteria
Age Range18 Years — N/A
SexALL
Healthy VolunteersNo
Study Sites1

Inclusion Criteria * Participants must have signed and dated a current IRB/IEC approved written informed consent form in accordance with regulatory and institutional guidelines. Patients must have the ability to understand a written informed consent document, and the willingness to sign it. * Conse...

Countries:United States
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Recent Changes (Last 90 Days)
LOWMay 24, 2026NCT05902520studyFirstPostDate: changed