Tankyrase inhibitor RK-582 for patients with advanced colorectal cancer

Investigator-initiated Phase I Study of a Tankyrase Inhibitor RK-582 for Patients With Unresectable Metastatic Colorectal Cancer

Phase 1 Interventional Japanese Foundation for Cancer Research · NCT06853496

This study is testing a new drug called RK-582 to see if it can help people with advanced colorectal cancer who haven't had success with other treatments.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment48 (estimated)
Ages18 Years and up
SexAll
SponsorJapanese Foundation for Cancer Research Academic / other
Locations1 site (Koto-ku, Tokyo)
Trial IDNCT06853496 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the efficacy of RK-582, a tankyrase inhibitor, in patients with unresectable metastatic colorectal cancer. The study focuses on patients who have not responded to or cannot tolerate standard treatments. RK-582 works by inhibiting tankyrase, which is involved in promoting cancer cell growth through Wnt/beta-catenin signaling. The trial aims to determine the safety and effectiveness of this novel treatment approach in managing advanced colorectal cancer.

Who should consider this trial

Good fit: Ideal candidates include patients with histologically confirmed colorectal cancer who are refractory or intolerant to standard treatments.

Not a fit: Patients with significant comorbidities or those unable to take oral medications may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with advanced colorectal cancer who have limited treatment choices.

How similar studies have performed: While tankyrase inhibitors are a relatively novel approach, preliminary studies have shown promise in targeting Wnt/beta-catenin signaling in colorectal cancer.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients with histologically or cytologically diagnosed colorectal cancer
* Patients who are refractory or intolerant to standard treatment for unresectable advanced or recurrent colorectal cancer
* Patients with measurable disease according to RECIST guideline ver 1.1
* Patients who are able to take capsules orally

Exclusion Criteria:

* Patients with clinically relevant gastrointestinal, hepatic, musculoskeletal, respiratory, cerebral/cardiovascular, hematologic, oncologic, endocrine, immunologic, psychiatric, neurologic, or genitourinary diseases, or patients with conditions that are judged to threaten the safety of the participant or to affect the outcome of this clinical trial by the investigators
* Patients with medical history of interstitial lung disease
* Patients with chronic nausea, vomiting or diarrhea that may interfere with oral administration of the investigational drug
* Patients with pulmonary embolism or central deep vein thrombosis.
* Patients receiving treatment with strong CYP3A4 inhibitors or inducers.
* Patients diagnosed and treated for osteoporosis or patients with a bone mineral density of less than T-score -2.5 at the time of screening
* Patients with obvious bone metastases in the long bones, vertebrae, or other parts of the leg where gravity is applied

Where this trial is running

Koto-ku, Tokyo

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Unresectable Colorectal Neoplasm Metastasiscolorectal neoplasmcolorectal cancertankyrase inhibitor
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.