OpenOnco · mCRC · RAS-WT left-sided 1L · FOLFOX+cetuximab (CRYSTAL)
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OpenOnco · Treatment Plan
Treatment plan — Colorectal carcinoma
PLAN-CRC-MET-RAS-WT-LEFT-1L-001-V1 · v1 · 2026-05-12
Patient
CRC-MET-RAS-WT-LEFT-1L-001 · Algorithm: ALGO-CRC-METASTATIC-1L
DiagnosisColorectal carcinoma
MOH / ICD-10C18-C20
ICD-O-38140/3; C18, C19, C20
StageIV
Histologyadenocarcinoma

Clinical significance of mutations (ESCAT)

Tumor-board context — the engine does not use these tiers to rank tracks
✅ Covered biomarkers (matched in KB)
BiomarkerVariantESCATEvidenceClinical significanceDrugsSources
No clinically actionable variants matched in this profile.
⚠️ Not included in plan
BiomarkerStatus
BIO-MSI-STATUSBIO definition in KB; no ESCAT BMA entry — verify with clinician
BIO-BRAF-V600EExcluded (negative)
KRASNot in KB — ask clinician to verify
NRASNot in KB — ask clinician to verify

Primary current-line option

Standard plan
★ DEFAULT
Indication
IND-CRC-METASTATIC-1L-RAS-WT-LEFT
Regimen
FOLFOX + Cetuximab
Drugs + NSZU
  • Oxaliplatin (DRUG-OXALIPLATIN) 85 mg/m² · IV day 1 · IV ✓ NSZU covered
  • Leucovorin (DRUG-LEUCOVORIN) 400 mg/m² · IV day 1 · IV ✓ NSZU covered
  • 5-Fluorouracil (DRUG-5-FLUOROURACIL) 400 mg/m² IV bolus + 2400 mg/m² CIV over 46h · Day 1 bolus, day 1-2 CIV · IV ✓ NSZU covered
  • Cetuximab (DRUG-CETUXIMAB) 500 mg/m² q2w (preferred for FOLFOX schedule; alternatively 400 mg/m² loading then 250 mg/m² weekly) · IV day 1 of each 14-d cycle · IV ✓ NSZU covered
Reason
Primary current-line option selected by ALGO-CRC-METASTATIC-1L at step 2; branch-driving red flag: RF-CRC-RAS-WT.

Other current-line alternatives (4 tracks)

Same treatment line; review when biomarker, access, contraindication, or patient-context assumptions change.
Aggressive plan
Indication
IND-CRC-OLIGOMET-LIVER-LIMITED
Regimen
FOLFOX (mFOLFOX6)
Drugs + NSZU
  • Oxaliplatin (DRUG-OXALIPLATIN) 85 mg/m² · IV over 2h, day 1 · IV ✓ NSZU covered
  • Leucovorin (DRUG-LEUCOVORIN) 400 mg/m² · IV over 2h, day 1 (concurrent with oxaliplatin) · IV ✓ NSZU covered
  • 5-Fluorouracil (DRUG-5-FLUOROURACIL) 400 mg/m² IV bolus + 2400 mg/m² CIV over 46h · Day 1 bolus, day 1-2 CIV · IV ✓ NSZU covered
Reason
Current-line alternative presented for HCP consideration
Aggressive plan
Indication
IND-CRC-METASTATIC-1L-MSI-H-PEMBRO
Regimen
Pembrolizumab monotherapy (MSI-H mCRC 1L)
Drugs + NSZU
  • Pembrolizumab (DRUG-PEMBROLIZUMAB) 200 mg IV q3w OR 400 mg IV q6w · Until progression / unacceptable toxicity / 35 cycles (about 2 years) · IV ⚠ NSZU — not for this indication
Hard contraindications
CI-PEMBROLIZUMAB-AUTOIMMUNE
Reason
Current-line alternative presented for HCP consideration
Aggressive plan
Indication
IND-CRC-METASTATIC-1L-FOLFOXIRI-BEV
Regimen
FOLFOXIRI + Bevacizumab
Drugs + NSZU
  • Irinotecan (DRUG-IRINOTECAN) 165 mg/m² · IV over 1h, day 1 · IV ✓ NSZU covered
  • Oxaliplatin (DRUG-OXALIPLATIN) 85 mg/m² · IV over 2h, day 1 · IV ✓ NSZU covered
  • Leucovorin (DRUG-LEUCOVORIN) 200 mg/m² · IV over 2h, day 1 · IV ✓ NSZU covered
  • 5-Fluorouracil (DRUG-5-FLUOROURACIL) 3200 mg/m² CIV over 48h · Day 1-2 (no bolus) · IV ✓ NSZU covered
  • Bevacizumab (DRUG-BEVACIZUMAB) 5 mg/kg · IV day 1, before chemotherapy · IV ✓ NSZU covered
Reason
Current-line alternative presented for HCP consideration
Aggressive plan
Indication
IND-CRC-METASTATIC-1L-FOLFOX-BEV
Regimen
FOLFOX + Bevacizumab
Drugs + NSZU
  • Oxaliplatin (DRUG-OXALIPLATIN) 85 mg/m² · IV day 1 · IV ✓ NSZU covered
  • Leucovorin (DRUG-LEUCOVORIN) 400 mg/m² · IV day 1 · IV ✓ NSZU covered
  • 5-Fluorouracil (DRUG-5-FLUOROURACIL) 400 mg/m² IV bolus + 2400 mg/m² CIV over 46h · Day 1 bolus, day 1-2 CIV · IV ✓ NSZU covered
  • Bevacizumab (DRUG-BEVACIZUMAB) 5 mg/kg · IV day 1 · IV ✓ NSZU covered
Reason
Current-line alternative presented for HCP consideration

Why this branch was chosen

Triggers from the patient profile that fired and drove the chosen branch.
Step 2 → branch IND-CRC-METASTATIC-1L-RAS-WT-LEFT
  • RF-CRC-RAS-WT ★ winner: Metastatic colorectal cancer with RAS wild-type status: KRAS exon 2 (codons 12, 13), exon 3 (codons 59, 61), exon 4 (codons 117, 146) AND NRAS exon 2/3/4 ALL wild-type by NGS or extended-RAS PCR. Defines the ~50% of mCRC eligible for anti-EGFR monoclonal antibody therapy (cetuximab, panitumumab) when combined with chemotherapy backbone. Left-sided RAS-WT mCRC particularly benefits from 1L anti-EGFR + FOLFOX/ FOLFIRI (CALGB/SWOG-80405, FIRE-3, PRIME, CRYSTAL — survival benefit driven by left-sided primaries; right-sided RAS-WT does NOT benefit and routes to bevacizumab + chemo). SRC-NCCN-COLON-2025SRC-ESMO-COLON-2024

Pre-treatment investigations

Investigations before treatment start · critical / standard / desired · merged across tracks
IDNamePriorityCategoryWhere to orderNeeded for
TEST-CT-CHEST-ABDOMEN-PELVISCT chest + abdomen + pelvis with IV contrastCriticalimagingaggressive
TEST-DMMR-IHCMMR proteins IHC (MLH1 / MSH2 / MSH6 / PMS2)CriticalhistologyCSD Lab ✓ (code TBC)aggressive
TEST-MSI-PCR-OR-NGSMSI status by PCR or NGSCriticalhistologyCSD Lab: M065
CSD Lab ✓ (code TBC)
aggressive
TEST-RAS-EXTENDEDRAS extended panel (KRAS exons 2-4 + NRAS exons 2-4)CriticalhistologyCSD Lab: M065aggressive
TEST-CEACEAStandardlabaggressive
TEST-MRI-BRAIN-CONTRASTMRI brain with contrastStandardimagingdesired (aggressive)
TEST-PET-CTFDG PET/CT (whole body)Standardimagingdesired (aggressive)

Red flags — PRO / CONTRA aggressive

PRO-AGGRESSIVE

Triggers that push toward the aggressive track
  • BRAF V600E mutation in mCRC: ~8-10% prevalence, poor prognosis (median OS halved vs BRAF-WT on standard chemo). Cetuximab/panitumumab ineffective. Encorafenib + cetuximab (BEACON CRC) is preferred 2L+; some 1L data favor FOLFOXIRI + bev intensification in MSS BRAF-mutant. RF-CRC-BRAF-V600E-POOR-PROGNOSIS
  • Frailty/age profile precluding doublet-intensive or triplet chemo: ECOG ≥3, OR (age ≥80 + Charlson ≥3), OR composite (age ≥75 + albumin <3.0 + ≥2 comorbidities). Triggers de-escalation toward 5-FU/LV mono, capecitabine mono, or best supportive care. RF-CRC-FRAILTY-AGE
  • MSI-high / dMMR mCRC — treatment-defining biomarker. KEYNOTE-177 established pembrolizumab 1L over FOLFOX+bev (PFS 16.5 vs 8.2 mo). This RF intensifies toward the immunotherapy track and overrides the default RAS/BRAF-driven chemo algorithm. RF-CRC-MSI-H-ACTIONABILITY
  • Liver-limited oligometastatic colorectal cancer (CRLM, colorectal liver metastases) — a distinct subset of stage IV CRC where intensified treatment with hepatic resection (or ablation) added to systemic chemo is potentially curative. Definition (per NCCN Colon v3.2025 + ESMO CRC 2024 + EORTC 40983 / Nordlinger 2008 trial framework): ≤5 liver metastatic lesions, all R0-resectable on multidisciplinary review, no extrahepatic disease, ECOG 0-1 fitness, controllable primary tumour. Triggers MDT (medical onc + hepatobiliary surgery + radiation onc + radiology) consideration of perioperative FOLFOX (or FOLFOXIRI in selected patients) + hepatic metastasectomy. Distinct from gastroesophageal OMEC-1 oligomet (RF-OLIGOMET-DEFINITION) — CRC oligomet uses ≤5 liver lesions (not ≤3 distant), restricts to liver only (extrahepatic excluded), and HER2-positive does NOT disqualify (anti-HER2 second-line track separate from periop intensification decision). RF-CRC-OLIGOMET-LIVER-DEFINITION

CONTRA-AGGRESSIVE

Hard contraindications to escalation
  • Pembrolizumab (and other PD-1/PD-L1 inhibitors) augment T-cell responses; in patients with active autoimmunity or post-transplant immunosuppression, this can precipitate severe organ-specific flares (colitis, hepatitis, pneumonitis, transplant rejection) that may be fatal or require transplant loss. CI-PEMBROLIZUMAB-AUTOIMMUNE

What NOT to do

Explicit prohibitive rules, each grounded in a regimen / supportive care / contraindication entity
Standard plan (IND-CRC-METASTATIC-1L-RAS-WT-LEFT)
  • Do NOT use cetuximab/panitumumab in RAS-mutant CRC — bypassed signaling, no benefit
  • Do NOT use cetuximab in BRAF V600E mutant — confirmed no benefit (BEACON CRC)
  • Do NOT use cetuximab in right-sided RAS-WT — bevacizumab preferred per CALGB-80405
  • Do NOT skip rash prophylaxis — strongly correlates with response and impacts QoL
Aggressive plan (IND-CRC-OLIGOMET-LIVER-LIMITED)
  • Do NOT proceed without MDT review (medical onc + hepatobiliary surgery + radiation onc + radiology) — resectability assessment is the gate
  • Do NOT offer hepatic metastasectomy without ≤5 R0-resectable liver-limited lesions + adequate future liver remnant on imaging review
  • Do NOT include extrahepatic disease (lung, peritoneal, distant LN, brain) — these are explicit exclusions and route to standard 1L metastatic CRC management
  • Do NOT continue bevacizumab perioperatively — hold ≥6 weeks before hepatectomy due to wound-healing / hepatic-regeneration risk; resume post-recovery if indicated
  • Do NOT initiate during ongoing GI bleed / obstruction / perforation — emergency management first (RF-CRC-EMERGENCY-OBSTRUCTION-PERFORATION)
  • Do NOT default to non-MDT single-surgeon decision — refer to a hepatobiliary surgeon at an appropriate-volume centre
Aggressive plan (IND-CRC-METASTATIC-1L-MSI-H-PEMBRO)
  • Do NOT start FOLFOX/FOLFIRI ± bev/cetux in MSI-H mCRC 1L — substantial PFS loss vs ICI
  • Do NOT continue pembrolizumab through Grade 3+ immune-related AE without specialist consultation
  • Do NOT start pembrolizumab without prior MSI/dMMR confirmation by validated assay
Aggressive plan (IND-CRC-METASTATIC-1L-FOLFOXIRI-BEV)
  • Do NOT use in ECOG PS ≥ 2 — toxicity unacceptable; use doublet (FOLFOX+bev or FOLFIRI+bev)
  • Do NOT use in MSI-H/dMMR patients — pembrolizumab 1L is preferred (KEYNOTE-177)
  • Do NOT use without G-CSF prophylaxis — neutropenia rate ~50%
  • Do NOT omit irinotecan pre-medication (atropine — cholinergic prevention)
  • Do NOT add anti-EGFR (cetuximab/panitumumab) — triplet + anti-EGFR vs triplet + bev not superior per MACBETH/VOLFI; use one or the other
  • Do NOT continue past disease progression — switch promptly to 2L
Aggressive plan (IND-CRC-METASTATIC-1L-FOLFOX-BEV)
  • Do NOT initiate within 28 days of major surgery (perforation / dehiscence risk)
  • Do NOT continue bevacizumab through uncontrolled HTN >160/100
  • Do NOT use in patients with high-risk varices / active hemoptysis

Timeline

Treatment timeline — derived from regimen + monitoring schedule

Standard plan

Induction · FOLFOX + Cetuximab
14-day cycles × Until progression / unacceptable toxicity

Aggressive plan

Induction · FOLFOX (mFOLFOX6)
14-day cycles × 12 cycles (6 mo) for adjuvant stage III; until progression / unacceptable toxicity for metastatic; 4 cycles (8 wk) periop trials

Aggressive plan

Induction · Pembrolizumab monotherapy (MSI-H mCRC 1L)
21-day cycles × Until progression / unacceptable toxicity / max 35 cycles per KEYNOTE-177

Aggressive plan

Induction · FOLFOXIRI + Bevacizumab
14-day cycles × Until progression / unacceptable toxicity; consider de-escalation after 4-6 months

Aggressive plan

Induction · FOLFOX + Bevacizumab
14-day cycles × Until progression / unacceptable toxicity (mCRC 1L)

MDT brief

Discussion questions (2, 1 blocking)

MDT talk tree (3 steps)

#OwnerTopicAction
1molecular_geneticistBiomarker status BLOCKINGWhat is the status of RAS mutation status (KRAS / NRAS exons 2-4) (BIO-RAS-MUTATION)? It is required by track(s): IND-CRC-METASTATIC-1L-RAS-WT-LEFT. Expected value: RAS-WT.
2hematologistStaging / disease burden What is the current LDH? Marker of tumor burden and transformation.
3clinical_pharmacistSpecialist review Chemoimmunotherapy regimen — drug-drug interactions, dose adjustments, premedication.

Skills (recommended) — for consideration (2)

  • Clinical pharmacist recommended
    Chemoimmunotherapy regimen — drug-drug interactions, dose adjustments, premedication.
  • Molecular geneticist / molecular oncologist recommended
    Indication references an actionable genomic biomarker — mutation / target / actionability interpretation needed.
    Owns: OQ-BIOMARKER-RAS-MUTATION

Data quality

Incomplete for default-track review. Default-track review is incomplete until required biomarker gaps are resolved.
  • Biomarker coverage: 1/2 known (50%), 1 missing, 1 default-track gaps
  • Unevaluated RedFlags: RF-ACTIVE-AUTOIMMUNE-DISEASE-ICI-RISK, RF-CRC-EMERGENCY-OBSTRUCTION-PERFORATION, RF-CRC-FRAILTY-AGE, RF-CRC-HER2-AMP-ACTIONABLE, RF-CRC-INFECTION-SCREENING, RF-CRC-OLIGOMET-LIVER-DEFINITION, RF-CRC-RAS-MUTANT, RF-CRC-TRANSFORMATION-PROGRESSION
Missing biomarkerLabelMDT ownerDefault trackRequired byNext action
BIO-RAS-MUTATIONRAS mutation status (KRAS / NRAS exons 2-4)molecular_geneticistyesIND-CRC-METASTATIC-1L-RAS-WT-LEFTVerify result, method, specimen, and report date before sign-off. Expected/constraint: RAS-WT
Technical MDT skill metadata (2/16 activated in this plan)
All registered virtual specialists. ✓ — activated for this case; ○ — not activated (available for other clinical scenarios).
Specialistskill_idVersionLast reviewedSign-offsDomain
Cellular therapy specialist (CAR-T)cellular_therapy_specialistv0.1.02026-04-250cellular_therapy
Clinical pharmacistclinical_pharmacistv0.1.02026-04-250clinical_pharmacy
Hematologist / oncohematologisthematologistv0.1.02026-04-250hematology_oncology
Hematopathologist (lymphoma / leukemia / myeloma)hematopathologistv0.1.02026-04-250hematopathology
Infectious disease / hepatologyinfectious_disease_hepatologyv0.1.02026-04-250infectious_diseases
Medical oncologist (solid-tumor chemotherapist)medical_oncologistv0.1.02026-04-250solid_oncology
Molecular geneticist / molecular oncologistmolecular_geneticistv0.1.02026-04-250molecular_oncology
Palliative carepalliative_carev0.1.02026-04-250palliative_care
Pathologist (general)pathologistv0.1.02026-04-250pathology
Primary care / family physicianprimary_carev0.1.02026-04-250primary_care
Psycho-oncologistpsychologistv0.1.02026-04-250psychosocial
Radiation oncologistradiation_oncologistv0.1.02026-04-250radiation_oncology
Radiologistradiologistv0.1.02026-04-250diagnostic_imaging
Social worker / case managersocial_worker_case_managerv0.1.02026-04-250psychosocial
Surgical oncologistsurgical_oncologistv0.1.02026-04-250surgical_oncology
Transplant specialist (BMT)transplant_specialistv0.1.02026-04-250cellular_therapy

Sources cited

Experimental options (clinical trials)

Third plan track — open-enrollment trials from ClinicalTrials.gov. Render-time metadata; engine selection is not affected by this block (CHARTER §8.3). Last synced: 2026-05-12.
NCTTitlePhaseStatusSponsorUASignalsEligibility (excerpt)
NCT06149481Phase I/II Study of the Combination Immunotherapy Regimen: SX-682, TriAdeno Vaccine, Retifanlimab and IL-15 Agonist N-803 (STAR15) for Metastatic Colorectal Cancer (mCRC)PHASE1 / PHASE2RECRUITINGNational Cancer Institute (NCI)Surrogate endpoint only Single country
NCT05378919Neoadjuvant Therapy vs Standard Therapy in Locally Advanced Rectal CancerPHASE2RECRUITINGLithuanian University of Health SciencesSurrogate endpoint only Single country
NCT05328765A Global Record of Patients With Anal Squamous Cell Carcinoma With and Without HIV InfectionN/ARECRUITINGLatin American Cooperative Oncology GroupSingle country
NCT07213609A Study to Investigate the Safety and Preliminary Efficacy of GSK5460025 Alone or in Combination With Other Anti-cancer Agents in Participants With Solid TumorsPHASE1 / PHASE2RECRUITINGGlaxoSmithKlineSmall N (<50) Surrogate endpoint only
NCT06074536Impact of Training Patient-centered Approach on Shared Decision in Colorectal Cancer ScreeningNARECRUITINGCNGE ConseilSingle country
NCT04812912Changes in Reproductive and Sexual Health in People With Early Onset Colorectal CancerN/ARECRUITINGMemorial Sloan Kettering Cancer CenterSingle country
NCT06663319A Study of JNJ-89402638 for Metastatic Colorectal and Gastric CancersPHASE1RECRUITINGJanssen Research & Development, LLCPhase 1 only
NCT05848609Functional Status and Quality of Life in Older Patients Undergoing Robotic Surgery for Colorectal CancerNARECRUITINGUniversitair Ziekenhuis BrusselSingle country
NCT06815406Recurrence Rate After Endoscopic Resection of , Laterally Spreading Tumor Granular Type (LST-G) of the Colon and Rectum: Endoscopic Mucosal Resection vs. Endoscopic Submucosal DissectionNARECRUITINGAzienda USL Reggio Emilia - IRCCSSingle country
NCT07071714A Phase II Study of SHR-8068 Injection in Combination With Anti-tumor Therapies in Colorectal CancerPHASE2RECRUITINGSuzhou Suncadia Biopharmaceuticals Co., Ltd.Surrogate endpoint only Single country

Verify recruitment status directly with the trial site. ctgov data can lag behind current UA-site status.

Option availability in Ukraine

Per-track UA registration · NSZU · cost · access pathway. Render-time metadata; engine selection does not depend on these fields (CHARTER §8.3).
OptionUA registrationNSZUCost orientationAccess pathway
Standard plan
FOLFOX + Cetuximab (REG-FOLFOX-CETUX)
✓ registered✓ covered₴-? — verify pathwayNSZU formulary
Aggressive plan
FOLFOX (mFOLFOX6) (REG-FOLFOX)
✓ registered✓ covered₴-? — verify pathwayNSZU formulary
Aggressive plan
Pembrolizumab monotherapy (MSI-H mCRC 1L) (REG-PEMBROLIZUMAB-MSI-MONO)
✓ registered✓ covered₴-? — verify pathwayNSZU formulary
Aggressive plan
FOLFOXIRI + Bevacizumab (REG-FOLFOXIRI-BEV)
✓ registered✓ covered₴-? — verify pathwayNSZU formulary
Aggressive plan
FOLFOX + Bevacizumab (REG-FOLFOX-BEV)
✓ registered✓ covered₴-? — verify pathwayNSZU formulary
Trial · NCT06149481
Phase I/II Study of the Combination Immunotherapy Regimen: SX-682, TriAdeno Vaccine, Retifanlimab and IL-15 Agonist N-803 (STAR15) for Metastatic Colorectal Cancer (mCRC)
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT05378919
Neoadjuvant Therapy vs Standard Therapy in Locally Advanced Rectal Cancer
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT05328765
A Global Record of Patients With Anal Squamous Cell Carcinoma With and Without HIV Infection
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT07213609
A Study to Investigate the Safety and Preliminary Efficacy of GSK5460025 Alone or in Combination With Other Anti-cancer Agents in Participants With Solid Tumors
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT06074536
Impact of Training Patient-centered Approach on Shared Decision in Colorectal Cancer Screening
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT04812912
Changes in Reproductive and Sexual Health in People With Early Onset Colorectal Cancer
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT06663319
A Study of JNJ-89402638 for Metastatic Colorectal and Gastric Cancers
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT05848609
Functional Status and Quality of Life in Older Patients Undergoing Robotic Surgery for Colorectal Cancer
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT06815406
Recurrence Rate After Endoscopic Resection of , Laterally Spreading Tumor Granular Type (LST-G) of the Colon and Rectum: Endoscopic Mucosal Resection vs. Endoscopic Submucosal Dissection
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor
Trial · NCT07071714
A Phase II Study of SHR-8068 Injection in Combination With Anti-tumor Therapies in Colorectal Cancer
No UA site listed — international referral required
— unknown— unknown
self-pay: ₴0/course
Trial sponsor

Cost information is orientation. Verify with a specific pharmacy / foundation / trial site. Status updated: 2026-05-12.