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OncoMatch/Clinical Trials/NCT05640999

Adjuvant Therapy in POLE-Mutated and p53-Wildtype/NSMP Early Stage Endometrial Cancer RAINBO BLUE & TAPER

Is NCT05640999 recruiting? Yes, currently enrolling (Jun 2026). This Phase 2 trial studies non-drug interventions for endometrial cancer.

Phase 2RecruitingCanadian Cancer Trials GroupNCT05640999Data as of Jun 2026Location: International · 8 countries

This protocol tests de-escalated adjuvant treatment in patients with POLE-mutated or p53wt/NSMP (p53 wildtype/no specific molecular profile) early-stage endometrial cancer (EC). Patients may be enrolled in one of two sub-studies * EN10.A/RAINBO BLUE: POLE-mutated EC * EN10.B/TAPER: p53 wildtype / NSMP EC

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Extracted eligibility criteria

Cancer type

Endometrial Cancer

Biomarker criteria

Required: POLE mutation

Required: TP53 wild-type

Disease stage

Required: Stage I, II, III

Performance status

ECOG 0–2(Ambulatory, capable of self-care)

Demographics

Female only

Prior therapy

Max 0 prior lines

Must have received: surgery

surgery consisting of hysterectomy and bilateral salpingo-oophorectomy

Cannot have received: neoadjuvant chemotherapy

Prior Neoadjuvant chemotherapy for current endometrial cancer diagnosis

Cannot have received: pelvic radiation

Prior pelvic radiation

Structured fields extracted by AI. May contain errors — verify against the official protocol.

US trial sites

  • Sarasota Memorial Health Care Centre · Sarasota, Florida
  • Alaska Womens Cancer Care · Anchorage, Alaska
  • University of Arizona Cancer Center · Tucson, Arizona
  • Cedars-Sinai Medical Center · Los Angeles, California
  • Huntington Memorial Hospital · Pasadena, California

Showing up to 5 US sites.

See all sites on ClinicalTrials.gov →

Frequently asked questions

Is NCT05640999 currently recruiting?

Yes, this trial is currently recruiting patients.

Are there prior therapy exclusions?

Yes. Prior neoadjuvant chemotherapy, pelvic radiation disqualifies patients from enrollment.

Does this trial require POLE?

Yes, POLE mutation is a required biomarker for enrollment.

Does this trial require TP53?

Yes, TP53 wild-type is a required biomarker for enrollment.

What disease stage is eligible?

Stage I or II or III is required.

Is this trial open to male patients?

No. This trial enrolls female patients only.

Could you qualify for this trial?

Enter your biomarker results to see how this trial's eligibility criteria match your specific cancer profile.

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