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A Study of TRK-950 When Used in Combination With Ramucirumab and Paclitaxel in Patients With Gastric Cancer

  • PhasePhase 2
  • StatusRecruiting
  • Planned enrollment146 people
  • Recruiting US sites14
  • SponsorToray Industries, Inc
  • RegistryNCT06038578

Recruitment re-checked on ClinicalTrials.gov Oct 30, 2026. Public record; not medical advice.

A Study of TRK-950 When Used in Combination With Ramucirumab and Paclitaxel in Patients With Gastric Cancer: a one-minute explainerNCT060385781 min

Eligibility

Who can join

The film gives the main points. The full list below is copied from the registry; the study team makes the final decision.

  • Age18 Years to no maximum
  • SexAll
  • Healthy volunteersNo

You may be able to join if

  • Histologically or cytologically confirmed metastatic, or locally advanced and unresectable gastric or GEJ adenocarcinoma.
  • The patient is eligible to receive Ramucirumab + Paclitaxel.
  • Documented objective radiographic or clinical disease progression (e.g., any new or worsening malignant effusion documented by ultrasound examination) which may be confirmed by pathologic criteria (histology and/or cytology) if appropriate, during or after treatment. The prior treatment must meet one of the following criteria with the following treatment history:
  • First treatment for metastatic disease or locally advanced disease without experiencing adjuvant / neo-adjuvant treatment, which progressed during treatment or within 4 months after the last dose of treatment
  • Adjuvant / neo-adjuvant treatment which progressed more than 6 months after the last dose of treatment and first treatment for metastatic disease or locally advanced disease, which progressed during the treatment or within 4 months after the last dose of treatment
  • Adjuvant / neo-adjuvant treatment which progressed during treatment or within 6 months after the last dose of treatment
  • Adjuvant / neo-adjuvant treatment which progressed during treatment or within 6 months after the last dose of treatment and first treatment for metastatic disease or locally advanced disease, which progressed during treatment or within 4 months after the last dose of treatment
  • Presence of primary or metastatic disease, measurable per RECIST v1.1 on CT scan.
  • Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1.
  • Life expectancy of at least 3 months.
  • Age ≥ 18 years in the US and Japan, and ≥ 19 years of age in Korea.
  • Signed, written IRB-approved informed consent.
  • Adequate organ function from specimens collected within 14 days prior to Day 1.
  • For men and women of child-producing potential, the use of effective contraceptive methods during the study and for 6 months after the last dose of TRK-950.
  • All patients must sign a pre-screening consent to assess tumor tissue to determine eligibility. Tumor tissue must be evaluable for CAPRIN-1 staining at a CLIA certified laboratory and meet or exceed the cutoff value (30% at ≥ 2+ staining) as defined in the expression level requirements.

You cannot join if

  • Prior history of treatment with ramucirumab or paclitaxel.
  • HER2 positive gastric or GEJ adenocarcinoma.
  • Major surgery within 28 days prior to randomization.
  • Baseline corrected QT (QTc) interval of > 470 msec for females and > 450 msec for males calculated using Fridericia's formula.
  • New York Heart Association (NYHA) Class II - IV symptomatic congestive heart failure, or symptomatic or poorly controlled cardiac arrhythmia.
  • The patient has experienced any arterial thrombotic event, including myocardial infarction, unstable angina, cerebrovascular accident, or transient ischemic attack, within 3 months prior to randomization.
  • The patient has a history of (non-infectious) pneumonitis that required steroids or has current pneumonitis.
  • Clinically symptomatic venous thromboembolism or current treatment with anti-coagulants. (Patients receiving prophylactic and low-dose anticoagulation therapy are eligible provided that the coagulation parameter defined in the Inclusion Criterion 9 is met.)
  • Uncontrolled arterial hypertension ≥ 150 mmHg (systolic) or ≥ 90 mmHg (diastolic) despite standard medical management.
  • Active, uncontrolled bacterial, viral, or fungal infections, requiring systemic therapy.
  • Pregnant or nursing women.
  • Treatment with radiation therapy within 2 weeks, or treatment with chemotherapy, immunotherapy, targeted therapy, or investigational therapy within 4 weeks prior to randomization (within 2 weeks for Oral FU (S1 and capecitabine)).
  • The patient has significant bleeding disorders, vasculitis, or had a significant bleeding episode from the gastrointestinal tract within 3 months prior to randomization.
  • Clinically significant ascites, paracentesis in the last 3 months, or undergoes regular paracentesis procedures.
  • History of gastrointestinal perforation and/or fistulae within 6 months prior to randomization.
  • The patient has a serious or non-healing wound, peptic ulcer, or bone fracture within 28 days prior to randomization.
  • The patient has a bowel obstruction, history or presence of inflammatory enteropathy or extensive intestinal resection (e.g., hemicolectomy or extensive small intestine resection with chronic diarrhea), Crohn's disease, ulcerative colitis, or chronic diarrhea.
  • Known active infection with HIV, hepatitis B or hepatitis C. Patients with a history of hepatitis B or C are allowed if HBV DNA or Hep C RNA are undetectable.
  • The patient is currently enrolled in a clinical trial involving an investigational product or non-approved use of a drug, or concurrently enrolled in any other type of medical research judged not to be scientifically or medically compatible with this study. Patients who have recently discontinued dosing of study drug are eligible to participate as long as the final dose of study drug was ≥ 28 days from randomization for participation in this study. Patients participating in surveys or observational studies are eligible to participate in this study.

The treatment

How it is intended to work

This is how the treatment is meant to work. Whether it helps, and how safe it is, is what this trial is testing.

anti-Caprin-1 monoclonal antibody TRK-950. A humanized monoclonal antibody directed against cell cycle associated protein 1 (cytoplasmic activation- and proliferation-associated protein 1; Caprin-1; CAPRIN1; RNA granule protein 105; RNG105), with potential antineoplastic activity. Upon administration, anti-Caprin-1 monoclonal antibody TRK-950 targets and binds to Caprin-1 expressed on tumor cells. This may induce antibody-dependent cell-mediated cytotoxicity (ADCC) and antibody-dependent cellular phagocytosis (ADCP), thereby killing Caprin-1-expressing tumor cells. Caprin-1 is overexpressed on certain tumor cell types and plays a key role in tumor cell proliferation and metastasis. NCI Drug Dictionary

Treatments listed in the registry

  • TRK-950 (Biological): 5 mg/kg or 10 mg/kg IV infusion over 60 minutes on Day 1, 8, 15 and 21 of each 28 day cycle
  • Ramucirumab (Drug): 8 mg/kg IV infusion on Days 1 and 15 of a 28-day cycle
  • Paclitaxel (Drug): 80 mg/m^2 IV infusion on Days 1, 8, and 15 of a 28-day cycle

The study

Treatment groups

Randomized · Parallel · masking: None

Arm A: TRK-950(5 mg/kg)+Ramucirumab+Paclitaxel (Experimental)

Participants who will be randomized to receive a 5 mg/kg intravenous(IV) dose of TRK-950 on days 1, 8, 15 and 22 in combination with 8 mg/kg IV dose of ramucirumab on days 1 and 15 and 80 mg/m^2 IV dose of paclitaxel on Days 1, 8, and 15 of a 28-day cycle.

Arm B: TRK-950(10 mg/kg)+Ramucirumab+Paclitaxel (Experimental)

Participants who will be randomized to receive a 10 mg/kg intravenous(IV) dose of TRK-950 on days 1, 8, 15 and 22 in combination with 8 mg/kg IV dose of ramucirumab on days 1 and 15 and 80 mg/m^2 IV dose of paclitaxel on Days 1, 8, and 15 of a 28-day cycle.

Arm C: Ramucirumab+Paclitaxel (Active Comparator)

Participants who will be randomized to receive a 8 mg/kg IV dose of ramucirumab on Days 1 and 15 in combination with 80 mg/m^2 IV dose of paclitaxel on Days 1, 8, and 15 of a 28-day cycle.

Goals

What the study measures

Main goals

  • Progression free Survival (PFS) (Time from date of randomization to the date of progressive disease or death due to any cause, whichever occurs first, up to approximately 24 months)

Other goals

  • Overall survival (OS)
  • Objective response rate (ORR)
  • Progression free Survival (PFS)
  • Objective response rate (ORR)
  • Best overall response (BOR)
  • Best overall response (BOR)
  • Disease control rate (DCR)
  • Disease control rate (DCR)
  • Duration of response (DoR)
  • Duration of response (DoR)
  • Incidence of Treatment-emergent Adverse Events (TEAE)
  • Serious Adverse Events (SAEs)
  • Adverse Events of Special Interest (AESI)
  • Incidence of Discontinuation due to AE
  • Incidence of Physical Examination Findings, Vital sign measurements, Standard clinical laboratory parameters, ECG parameters
  • Pharmacokinetic Parameter of Concentration of drug at the end of infusion (CEOI) of TRK-950
  • Pharmacokinetic Parameter of Trough Serum Concentration (Ctrough) of TRK-950
  • Pharmacokinetic Parameter of Area Under the Curve (AUC) of TRK-950
  • Pharmacokinetic Parameter of Concentration of drug at the end of infusion (CEOI) of Ramucirumab
  • Pharmacokinetic Parameter of Trough Serum Concentration (Ctrough) of Ramucirumab
  • Pharmacokinetic Parameter of Area Under the Curve (AUC) of Ramucirumab
  • Pharmacokinetic Parameter of Concentration of drug at the end of infusion (CEOI) of Paclitaxel
  • Pharmacokinetic Parameter of Trough Serum Concentration (Ctrough) of Paclitaxel
  • Pharmacokinetic Parameter of Area Under the Curve (AUC) of Paclitaxel
  • Percentage of participants who are Anti-drug antibody (ADA)-Positive and Neutralizing antibodies (NAbs)
  • Change from Baseline in Patient Reported Quality of Life assessed by the Questionnaire - Core questionnaire EORTC QLQ-C30 scores
  • Change from Baseline in Patient Reported Quality of Life assessed by Questionnaire - EuroQOL Five Dimensions questionnaire 3L (EQ-5D-3L) scores

Planned enrollment: 146 (estimated).

Where

Recruiting US sites

  • City of Hope, Duarte, California
  • City of Hope at Orange County Lennar Foundation Cancer Center, Irvine, California
  • University of California, Los Angeles, Santa Monica, California
  • Texas Oncology Arlington North, Arlington, Texas
  • Texas Oncology Bedford, Bedford, Texas
  • Texas Oncology Dallas Methodist, Dallas, Texas
  • Texas Oncology Dallas Medical City, Dallas, Texas
  • Texas Oncology Dallas Presbyterian, Dallas, Texas
  • Texas Oncology Methodist Charlton Cancer Center, Dallas, Texas
  • Texas Oncology-Sammons Cancer Center, Dallas, Texas
  • Texas Oncology Fort Worth Cancer Center, Fort Worth, Texas
  • Texas Oncology Grapevine, Grapevine, Texas
  • Texas Oncology Plano East, Plano, Texas
  • Texas Oncology Plano West, Plano, Texas

13 recruiting sites outside the US. Site status as of Oct 30, 2026. Check the live record before contacting a site.

Background research

Papers linked by the registry

These papers are listed in the registry record. Unless a paper is marked as about this trial, it is background research on the treatment or disease, not results from this study.

Sources

Where this comes from

Registry record reviewed as fetched Oct 30, 2026, last updated by the sponsor Oct 7, 2026. Public record; not medical advice.

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