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Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of TGW101 in Participants With Advanced Solid Tumors

Phase 1, First-in-Human, Open-Label Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Preliminary Efficacy of TGW101 in Patients With Advanced Solid Tumors

Status
Recruiting
Phases
Phase 1
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06959706
Enrollment
50
Registered
2025-05-06
Start date
2025-05-07
Completion date
2027-09-01
Last updated
2026-04-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Advanced Solid Tumors

Keywords

Antibody-drug conjugates, Carcinoma, TGW101, TGW101-ADC, TRG001, TAG-72, Cancer

Brief summary

The primary objectives of this study are to evaluate the safety and tolerability of TGW101 and determine the recommended dosing regimen(s) for further study. The secondary objectives are to assess pharmacokinetics and preliminary antitumor activity.

Interventions

DRUGTGW101

TGW101 is a combination product comprising a chemically cleavable diabody drug conjugate (TGW101-ADC) and a corresponding small molecule chemical trigger (TRG001) administered separately.

Sponsors

Tagworks Pharmaceuticals BV
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

1. Written informed consent prior to any study procedures. 2. Males or females 18 years or older. 3. Histologically or cytologically confirmed diagnosis of a solid tumor malignancy listed below, with radiographic evidence of disease progression based on Response Evaluation Criteria in Solid Tumors (RECIST v1.1), or for castration resistant prostate cancer (CRPC), Prostate Cancer Clinical Trials Working Group 3, after most recent treatment and locally advanced or metastatic disease at Screening: 1. Breast cancer (all subtypes). 2. Castrate-resistant prostate cancer. 3. Cervical cancer. 4. Endometrial cancer. 5. Esophageal, adenocarcinoma only. 6. Gastric/gastroesophageal junction (GEJ). 7. Non-squamous cell carcinoma of the head and neck, e.g., salivary gland neoplasms, with the exception of adenoid cystic carcinoma. 8. Non-small cell lung cancer, adenocarcinoma only. 9. Ovarian. 4. Refractory disease, intolerance to, or documented refusal of available standard therapy(ies) known to provide clinical benefit for the participant's solid tumor malignancy per Investigator judgment. 5. At least 1 measurable lesion per RECIST v1.1 except for participants with bone-only metastatic disease. 6. Biopsy pretreatment; if not possible, archival tissue block (preferred) or unstained formalin-fixed paraffin-embedded slides required. 7. Eastern Cooperative Oncology Group Performance Status 0-1. 8. Life expectancy of \> 3 months in the opinion of the Investigator. 9. Adequate hepatic, hematologic, and renal function.

Exclusion criteria

1. Active second malignancy or history of another malignancy within the last 2 years, with the exception of: treated non-melanoma skin cancers; treated carcinoma in situ (e.g., breast and cervix); controlled superficial carcinoma of the urinary bladder; T1a or b carcinoma of the prostate; papillary thyroid carcinoma Stage I treated surgically for cure. 2. Known symptomatic brain metastases. 3. Significant cardiovascular disease within 6 months prior to starting study drug. 4. Evidence of an active systemic bacterial, fungal, or viral infection requiring treatment. 5. Grade ≥ 2 peripheral neuropathy. 6. Major surgery within 4 weeks prior to starting study drug. 7. Prior solid organ or bone marrow progenitor cell transplantation. 8. Prior high-dose chemotherapy requiring stem cell rescue. 9. Anticancer therapy within 28 days or within 5 half-lives (whichever is shorter) prior to starting study drug. 10. Palliative radiation therapy within 14 days prior to starting study drug. 11. Live vaccine within 28 days prior to starting study drug. 12. Pregnant or a breastfeeding postpartum female.

Design outcomes

Primary

MeasureTime frame
Number of Participants Experiencing Adverse Events (AEs)Up to approximately 10 months
Number of Participants Experiencing Dose-limiting Toxicities (DLTs)Up to Day 21
Number of Participants Experiencing Cycle DelayUp to approximately 10 months
Number of Participants Experiencing Dose ReductionUp to approximately 10 months
RDE of TGW101Up to approximately 10 months

Secondary

MeasureTime frame
Area Under the Concentration-time Curve From Time Zero to the Last Quantifiable Concentration (AUClast) of TGW101-ADC and TRG001Up to approximately 10 months
Area Under the Concentration-time Curve From Time Zero to the end of the Dosing Interval (AUCtau) of TGW101-ADC and TRG001Up to approximately 10 months
Area Under the Concentration-time Curve From Time Zero to Infinity (AUCinf) of TGW101-ADC and TRG001Up to approximately 10 months
Maximum Concentration (Cmax) of TGW101-ADC and TRG001Up to approximately 10 months
Trough Concentration (Ctrough) of TGW101-ADC and TRG001Up to approximately 10 months
Time to Maximum Concentration (Tmax) of TGW101-ADC and TRG001Up to approximately 10 months
Apparent Terminal Elimination Half-life (t1/2) of TGW101-ADC and TRG001Up to approximately 10 months
Steady-state Volume of Distribution (Vss) of TGW101-ADC and TRG001Up to approximately 10 months
Clearance (CL) of TGW101-ADC and TRG001Up to approximately 10 months
Accumulation Index of TGW101-ADC and TRG001Up to approximately 10 months
Overall Response Rate (ORR)Up to approximately 10 months
Duration of Response (DOR)Up to approximately 10 months
Progression-free Survival (PFS)Up to approximately 10 months
Overall Survival (OS)Up to approximately 10 months
Number of Participants Experiencing Antidrug Antibodies (ADAs) Against TGW101-ADCUp to approximately 10 months

Countries

United States

Contacts

CONTACTTagworks Pharmaceuticals
clinicaltrials@tagworkspharma.comPlease email

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 30, 2026