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Recruiting

NCT Number: NCT05733689

Response Adapted Neoadjuvant Therapy in Gastroesophageal Cancers (RANT-GC Trial)

This is a phase 1b prospective, single arm, open-label trial determining the efficacy and feasibility of using a response-guided approach to help guide neoadjuvant chemotherapy in subjects with Stage IB, II or Stage III adenocarcinoma of the stomach or gastroesophageal junction (GEA).

Recruiting

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Chao Family Comprehensive Cancer Center, University

Orange, California, 92868, United States

Location status: Recruiting

Location contact

Farshid Dayyani, MD, PhD

CONTACT

[email protected]

877-827-8839

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients must have histologically or cytologically confirmed adenocarcinoma of the stomach or gastroesophageal junction (GEA). Other GE histologies which are treated per NCCN guidelines for neoadjuvant treatment are eligible.
  • Must have Stage IB, II or Stage III GEA eligible for (neo)adjuvant doublet or triplet chemotherapy for up to 6 months.
  • Age ≥ 18 years Because the safety or efficacy of neoadjuvant chemotherapy for LGEA has not been tested or established for patients <18 years of age, children are excluded from this study but will be eligible for future pediatric trials, if applicable.
  • Performance status: ECOG performance status ≤2
  • Life expectancy of greater than 6 months
  • Adequate organ and marrow function as defined below:
  • hemoglobin ≥ 7g/dL
  • absolute neutrophil count ≥ 1,500/mcL
  • platelets ≥ 80,000/mcl
  • total bilirubin within normal institutional limits
  • AST(SGOT)/ALT(SPGT) ≤ 5 X institutional upper limit of normal
  • creatinine <2 X ULN
  • Docetaxel can cause fetal harm and irinotecan is known to be teratogenic. Since these compounds are part of the treatment regimens, women of child-bearing potential and men must agree to use adequate contraception (hormonal or barrier method of birth control; abstinence) prior to study entry, for the duration of study participation, and for 90 days following completion of therapy. Should a woman become pregnant or suspect she is pregnant while participating in this study, she should inform her treating physician immediately.
  • A female of child-bearing potential is any woman (regardless of sexual orientation, having undergone a tubal ligation, or remaining celibate by choice) who meets the following criteria:
  • Has not undergone a hysterectomy or bilateral oophorectomy; or
  • Has not been naturally postmenopausal for at least 12 consecutive months (i.e., has had menses at any time in the preceding 12 consecutive months).
  • Ability to understand and the willingness to sign a written informed consent. 1. Both men and women and members of all races and ethnic groups are eligible for this trial. Non-English speaking, deaf, hard of hearing and illiterate individuals are eligible for this trial.

Exclusion criteria

  • Patients may not be receiving any other investigational agents.
  • Patients with known distant metastases from GEA.
  • History of allergic reactions attributed to agents used in study.
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements.
  • History of another primary cancer which requires active treatment or is expected to require treatment within 12 months after enrollment.
  • Inability to comply with study and follow-up procedures as judged by the Investigator.
  • Patients who are pregnant or nursing due to the potential for congenital abnormalities and the potential of this regimen to harm nursing infants.
  • Patients with prior organ/bone marrow/non-autologous stem cell transplants

Treatment and study plan

FLOT

Combination Product
  • Oxaliplatin 85 mg/m2 IV on Day 1
  • Docetaxel 50 mg/m2 IV on Day 1
  • Leucovorin 200 mg/m2 IV on Day 1
  • Fluorouracil 2600 mg/m2 continuous infusion over 24 hours daily on Day 1 Every 14 Days

FOLFOX

Combination Product
  • Oxaliplatin 85 mg/m2 IV on Day 1
  • Leucovorin 400 mg/m2 IV on Day 1
  • Fluorouracil 400 mg/m2 IV Push on Day 1
  • Fluorouracil 1200 mg/m2 continuous infusion over 24 hours daily on Days 1 and 2 Every 14 Days

FOLFIRI

Combination Product
  • Irinotecan 180 mg/m2 IV on Day 1
  • Leucovorin 400 mg/m2 IV on Day 1
  • Fluorouracil 400 mg/m2 IV Push on Day 1
  • Fluorouracil 1200 mg/m2 continuous infusion over 24 hours daily on Days 1 and 2 Every 14 Days

FOLFIRINOX

Combination Product
  • Oxaliplatin 85 mg/m2 IV on Day 1
  • Irinotecan 150 mg/m2 IV on Day 1
  • Leucovorin 200 mg/m2 IV on Day 1
  • Fluorouracil 1200 mg/m2 continuous infusion over 24 hours daily on Days 1 and 2 Every 14 days

PACLITAXEL with or without CARBOPLATIN

Combination Product
  • Paclitaxel 200 mg/m2 IV on Day 1
  • Carboplatin AUC 5 IV on day 1 Every 21 Days

OR

  • Paclitaxel 80mg/m2 IV on Days 1,8,15 Every 28 Days

DOCETAXEL and IRINOTECAN (alone or combined)

Combination Product
  • Docetaxel 35 mg/m2 IV on Days 1 and 8
  • Irinotecan 50 mg/m2 IV on Days 1 and 8 Every 21 Days
  • Docetaxel 75 mg/m2 IV on Day 1 Every 21 Days
  • Docetaxel 150 mg/m2 IV on Day 1 Every 14 Days

NIVOLUMAB (alone or when added to a regimen above)

Drug
  • 240 mg IV on Day 1 every 14 days, or
  • 360 mg IV on Day 1 every 21 days, or
  • 480 mg IV on Day 1 every 28 days

PEMBROLIZUMAB (alone or when added to a regimen above)

Drug
  • 200 mg IV on Day 1 every 21 days, or
  • 400 mg IV on Day 1 every 42 days

Durvalumab

Drug
  • 1500 mg IV on Day 1 every 28 days

Trastuzumab

Drug
  • 8 mg/kg on Day 1, then 6 mg/kg IV every 21 days, or
  • 6 mg/kg on Day 1, then 4 mg/kg IV every 14 days

Primary outcomes

  1. Percentage of completing per protocol treatment.

    Time frame: Up to 3 years

    Percent of patients who will undergo attempt at curative intent resection.

Secondary outcomes

  1. Percentage of patients completing gastrectomy.

    Time frame: Up to 3 years

    Percent of patients completing gastrectomy

  2. Rate of negative ctDNA after completion of neoadjuvant treatment and within 8 weeks after surgery

    Time frame: 8 weeks

    Percent of patients with ctDNA clearance after neoadjuvant chemotherapy and after surgery (within 6-8 weeks)

  3. Rate of R0 resection

    Time frame: Up to 3 years

    R0 resection is defined as complete tumor removal with negative surgical margins.

  4. Percentage of Grade 3-5 Adverse Events

    Time frame: Up to 3 years

    Toxicity and adverse events are based on the CTCAE (NCI Common Terminology Criteria for Adverse Events) Version 5.0.

  5. Relapse-free survival time

    Time frame: Up to 3 years

    The lead time in ctDNA detection before clinical recurrence

Study contacts

Contact information is provided by the study sponsor or research team.

Chao Family Comprehensive Cancer Center University of California, Irvine

CONTACT

[email protected]

1-877-827-8839

University of California Irvine Medical

CONTACT

Sponsors and collaborators

Lead sponsor

University of California, Irvine

Other

Collaborators

  • BillionToOne Inc.

Registry information

Official study title

Response Adapted Neoadjuvant Therapy in Gastroesophageal Cancers (RANT-GC Trial) - a Phase Ib Feasibility Trial

Important dates

Study start
2025
Primary completion
2027
Study completion
2027
First posted
Feb 17, 2023
Registry last updated
Mar 10, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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