Phase 1 Colorectal Cancer Trial, Recruiting NCT05803382 Sponsor: National Cancer Institute (NCI) Condition: Colorectal Cancer
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Phase 1 Colorectal Cancer Trial, Recruiting

NCT05803382
Recruiting Phase 1

Who may be able to join

AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI

Who might be able to join this trial:

  • People taking part in the dose escalation phase must have a laboratory-confirmed cancer that has spread or cannot be surgically removed, and that has continued to grow after standard treatments that included the drugs fluorouracil (5-FU) or capecitabine.
  • People with colorectal cancer taking part in the dose escalation phase must be willing and able to have a tumour biopsy taken before treatment starts.
  • People taking part in the dose expansion phase must have laboratory-confirmed colorectal cancer that has spread or cannot be surgically removed, and that has continued to grow after standard treatments that included 5-FU or capecitabine.
  • People in the dose expansion phase must be willing and able to have tumour biopsies taken both before and during treatment.
  • People must have cancer that can be measured on scans.
  • People must be 18 years of age or older (children are excluded because safety data in this age group is not yet available).
  • People must have a general health and activity level rated at a moderate level or better (ECOG performance status 0–2, or Karnofsky score of 60% or higher).
  • A stored sample of tumour tissue must be available at the time of enrolment for testing.
  • Any previous systemic cancer treatment must have been completed at least two weeks before starting this trial, or for a period of at least five half-lives of that treatment, whichever is shorter.
  • Blood counts must meet minimum levels: neutrophils at least 1,000 per microlitre and platelets at least 100,000 per microlitre.
  • Liver function blood test results must be within acceptable ranges set by the testing laboratory.
  • Kidney function must meet a minimum threshold (confirm with trial site for exact values).
  • People living with HIV who are on effective treatment and have had an undetectable viral load within the last 6 months may be eligible.
  • People with chronic hepatitis B must have an undetectable viral load while on suppressive therapy, if that therapy is needed.
  • People with a history of hepatitis C must have completed treatment and been cured, or if currently on treatment, must have an undetectable viral load.
  • People who have had brain metastases that have been treated may be eligible if follow-up brain scans show no sign of the cancer growing after that treatment.
  • People who have or have had another cancer may be eligible if that cancer and its treatment are not expected to interfere with this trial's safety or results.
  • People must have a heart health rating of class 2B or better under a standard heart function classification scale.
  • People who are able to become pregnant, and men, must agree to use adequate contraception during the trial and for 6 months after completing treatment, as the effects of the trial drugs on an unborn baby are unknown.
  • People must be willing and able to understand and sign a written consent form, or have a legally authorised representative do so on their behalf.

Who may not be able to join:

  • People who have previously been treated with a class of drugs called BET inhibitors.
  • People who have previously been unable to tolerate capecitabine at the dose planned for this trial.
  • People currently taking certain blood-thinning medications known as oral Factor Xa inhibitors (such as rivaroxaban or apixaban) or Factor IIa inhibitors (such as dabigatran) — a different type of blood thinner (low molecular weight heparin) is allowed.
  • People whose treatment for HIV, hepatitis B, or hepatitis C would interfere with the trial drugs (for example, through drug interactions).
  • People with stomach or bowel conditions that would affect the ability to take or absorb oral medications.
  • People whose cancer has spread extensively to the liver (more than 30% of the liver involved) or throughout the lining of the abdomen.
  • People with untreated or uncontrolled cancer in the brain or central nervous system.
  • People known to have a specific enzyme deficiency called DPD deficiency, which affects how the body processes certain chemotherapy drugs.
  • People with serious ongoing illness or other significant health conditions.
  • People who are unable or unwilling to follow the trial procedures or attend follow-up appointments.
  • People who still have side effects from previous cancer treatment that are rated above a mild level (above grade 1), except for hair loss or nerve-related side effects up to grade 2.
  • People currently taking part in another clinical trial involving an experimental treatment.
  • People with a history of serious allergic reactions to drugs with a similar composition to the trial drugs.
  • People taking medications that strongly affect the way the body processes a liver enzyme called CYP3A4 — these medications would need to be stopped a set number of days before starting the trial (confirm with trial site for specific timing and drug names).
  • People who are pregnant, as the trial drugs may harm an unborn baby.
  • People who are breastfeeding, as the effects of the trial drugs on a nursing infant are unknown.

Important: Always verify eligibility with the trial site directly before applying.

Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.

This is a simplified plain English summary of the eligibility criteria. Full criteria are set by the trial investigators and may include additional requirements not shown here. Never self-exclude from a trial based on this summary. Contact the trial site directly to confirm your eligibility.
Last synced 28 July 2026
Phase 1: approximately ~10% of drugs entering this phase reach regulatory approval, based on published industry-wide historical data. This is not specific to this trial.
Phase success rates shown are historical industry-wide averages based on published data. They are not a prediction for this specific trial or your individual situation.

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Trial details

Status
Recruiting
Phase
Phase 1
Registry
ClinicalTrials.gov
Start date
8 November 2023
Est. completion
30 June 2027

Where this trial is recruiting

🇺🇸 United States

Primary endpoints

Incidence of adverse events; Maximum tolerated dose (MTD); Recommended phase 2 dose (RP2D)

Can't join this trial?

Expanded access pathways

If this trial is not available to you, other access pathways may exist. In Australia, the TGA Special Access Scheme allows access to unapproved therapeutic goods for individual patients.

TGA Special Access Scheme information

Find other recruiting trials on ClinicalTrials.gov

Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.

Trial recruitment status can change without notice between our nightly data updates. Always contact the trial site directly to confirm current recruitment status before making any decisions or travel arrangements.

View original record on ClinicalTrials.gov