A Study to Investigate Safety and Preliminary Efficacy of SOA101 in Adult Subjects With Advanced Solid Tumors
NbTAST-01
A Phase I/IIa Dose-escalation, Dose-optimization and Dose Expansion Study to Evaluate the Safety and Preliminary Efficacy of Tri-specific Antibody (SOA101) in Subjects With Advanced Solid Tumors.
1 other identifier
interventional
76
1 country
1
Brief Summary
The investigational drug, SOA101, is a nanobody-based trispecific antibody T cell engager targeting PD-L1/HLA-G/CD3. This is a Phase I/IIa study including dose-escalation, dose optimization and dose expansion parts to exam safety, tolerability, pharmacokinetics, immunogenecity and efficacy of SOA101 on advanced or metastatic solid tumor treatment.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_1
Started Jul 2025
Typical duration for phase_1
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
June 18, 2025
CompletedFirst Posted
Study publicly available on registry
July 9, 2025
CompletedStudy Start
First participant enrolled
July 30, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2028
November 6, 2025
June 1, 2025
2.5 years
June 18, 2025
November 4, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Maximum Tolerated Dose (MTD) of SOA101 for Phase I
from start until 3 months after the last dosing
Objective Response Rate (ORR) of SOA101 for Phase IIa
from start until 3 months after the last dosing
Secondary Outcomes (4)
Area Under the Curve of SOA101 (AUC)
Up to end of study visit (90 days after the last dose)
Maximum observed plasma concentration of SOA101 (Cmax)
Up to end of study visit (90 days after the last dose)
Half-life of SOA101 (T1/2)
Up to end of study visit (90 days after the last dose)
Overall Response Rate (ORR)
Up to end of study visit (90 days after the last dose)
Study Arms (1)
SOA101
EXPERIMENTALInterventions
Participants will receive SOA101. The RP2D will be determined based on the results of the Phase I study. During the dose expansion phase, participants will receive SOA101 at the RP2D regimen.
Eligibility Criteria
You may qualify if:
- Male or female subjects aged ≥ 18 years old.
- Subjects with locally advanced, or metastatic solid tumors confirmed histologically or cytologically as one of the following cancer types for whom no suitable alternative standard-of-care therapy exists:
- Non-small cell lung cancer (NSCLC);
- Ovarian cancer (OC);
- Head and neck carcinoma (H\&N);
- Breast cancer (BC);
- Colorectal cancer (CRC).
- Pathologically confirmed combined positive score (CPS) with ≥ 1% expression of PD-L1.
- At least one measurable lesion
- Adequate organ function
- Female subject must either not be of childbearing potential or a negative pregnancy test
- Non-vasectomized male subjects must practice highly effective contraception
You may not qualify if:
- Active bacterial, fungal, viral OR atypical infection requiring systemic medication.
- Received any investigational drug within 4 weeks before screening.
- Confirmed active HIV (without controlled disease on HAART), HBV, or HCV infection.
- Symptomatic, unstable central nervous system malignancy OR metastasis
- Have received organ or tissue transplantation or allogeneic cell therapies.
- Non-adequate cardiac function
- Known hypersensitivity to any anti-PD-L1 therapy or anti-CD3 therapy.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
China Medical University Hospital
Taichung, Taiwan
Related Publications (1)
Lin YC, Chen MC, Huang SW, Chen Y, Ho JH, Lin FY, Tan XT, Chiang HC, Huang CC, Tu CY, Cho DY, Chiu SC. Targeting Dual Immune Checkpoints PD-L1 and HLA-G by Trispecific T Cell Engager for Treating Heterogeneous Lung Cancer. Adv Sci (Weinh). 2024 Nov;11(41):e2309697. doi: 10.1002/advs.202309697. Epub 2024 Sep 5.
PMID: 39234811RESULT
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NA
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
June 18, 2025
First Posted
July 9, 2025
Study Start
July 30, 2025
Primary Completion (Estimated)
February 1, 2028
Study Completion (Estimated)
December 1, 2028
Last Updated
November 6, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will not share