MedPath

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

Phase 1
Recruiting
Conditions
Advanced Solid Tumors
Interventions
Registration Number
NCT06959706
Lead Sponsor
Tagworks Pharmaceuticals BV
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 anti-tumor activity.

Detailed Description

Not available

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
50
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 (triple negative, estrogen receptor and/or progesterone receptor positive, and/or human epidermal growth factor receptor 2 positive).
    2. Castrate-resistant prostate cancer.
    3. Cervical cancer.
    4. Endometrial cancer.
    5. Esophageal, adenocarcinoma only.
    6. Gastric.
    7. Non-squamous cell carcinoma of the head and neck, e.g., salivary gland neoplasms.
    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.

Study & Design

Study Type
INTERVENTIONAL
Study Design
SEQUENTIAL
Arm && Interventions
GroupInterventionDescription
TGW101: Dose Escalation CohortsTGW101Escalating doses of TGW101-anti-drug conjugate (ADC) will be administered via intravenous (IV) infusion followed by administration of TRG001. The treatment period continues until a reason for permanent discontinuation of treatment occurs.
TGW101: Enrichment CohortsTGW101During Dose Escalation, additional participants may be enrolled to permit further evaluation of TGW101 to support selection of the optimal recommended dosing regimen(s) for expansion (RDE\[s\]). At the discretion of the a Safety Oversight Committee (SOC), enrollment in enrichment cohorts may be limited to specific tumor type(s).
Primary Outcome Measures
NameTimeMethod
Number of Participants Experiencing Dose ReductionUp to approximately 10 months
Number of Participants Experiencing Cycle DelayUp to approximately 10 months
Number of Participants Experiencing Adverse Events (AEs)Up to approximately 10 months
Number of Participants Experiencing Dose Limiting Toxicities (DLTs)Up to Day 21
RDE of TGW101Up to approximately 10 months
Secondary Outcome Measures
NameTimeMethod
Steady-state Volume of Distribution (Vss) of TGW101-ADC Related AnalytesUp to approximately 10 months
Clearance (CL) of TGW101-ADC Related AnalytesUp to approximately 10 months
Accumulation Index of TGW101-ADC Related AnalytesUp to approximately 10 months
Overall Response Rate (ORR)Up to approximately 10 months
Number of Participants Experiencing Antidrug Antibodies (ADAs) Against TGW101-ADCUp to approximately 10 months
Trough Concentration (Ctrough) of TGW101-ADC Related AnalytesUp to approximately 10 months
Apparent Terminal Elimination Half-life (t1/2) of TGW101-ADC Related AnalytesUp to approximately 10 months
Time to Maximum Concentration (Tmax) of TGW101-ADC Related AnalytesUp to approximately 10 months
Duration of Response (DOR)Up to approximately 10 months
Area Under the Concentration-time Curve From Time Zero to the Last Quantifiable Concentration (AUClast) of TGW101-ADC Related AnalytesUp to approximately 10 months
Area Under the Concentration-time Curve From Time Zero to the end of the Dosing Interval (AUCtau) of TGW101-ADC Related AnalytesUp to approximately 10 months
Maximum Concentration (Cmax) of TGW101-ADC Related AnalytesUp to approximately 10 months
Area Under the Concentration-time Curve From Time Zero to Infinity (AUCinf) of TGW101-ADC Related AnalytesUp to approximately 10 months
Progression-free Survival (PFS)Up to approximately 10 months
Overall Survival (OS)Up to approximately 10 months

Trial Locations

Locations (3)

NEXT Dallas

🇺🇸

Irving, Texas, United States

NEXT San Antonio

🇺🇸

San Antonio, Texas, United States

NEXT Virginia

🇺🇸

Fairfax, Virginia, United States

NEXT Dallas
🇺🇸Irving, Texas, United States

MedPath

Empowering clinical research with data-driven insights and AI-powered tools.

© 2025 MedPath, Inc. All rights reserved.