Skip to content
← Study library

NCT00154102 · CITED IN SOURCE DOCUMENTS

Cetuximab Combined With Irinotecan in First-line Therapy for Metastatic Colorectal Cancer (CRYSTAL)

An NCI or FDA source cites this study. A citation does not establish that it applies to an individual diagnosis.

Phase
PHASE3
Status at capture
COMPLETED
Registry last update
2017-01-30

Drugs used against cancer work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as cetuximab, can block tumor growth in different ways. Giving combination chemotherapy together with cetuximab as first treatment after diagnosis of a metastatic colorectal cancer ('1st-line' treatment) may improve the treatment efficacy. However, it is not yet known whether giving combination chemotherapy together with cetuximab is more effective than combination chemotherapy alone. This open-label trial investigates the effectiveness of cetuximab in combination with a standard and effective chemotherapy (5-Fluorouracil (5FU)/Folinic acid (FA) plus irinotecan) for metastatic colorectal cancer in first-line setting, compared to the same chemotherapy alone on patient expressing the epidermal growth factor (EGF) receptor. Patients expressing this EGF Receptor will be randomly assign in one of the 2 groups to either receive the combination chemotherapy alone or with cetuximab (open-label study) and will then be treated until progression of the disease or unacceptable toxicity occur. Regular efficacy assessments (every 8 weeks) based on imaging will be performed throughout the study together with regular safety assessments (e.g. safety labs). An independent Safety Board of experts will also monitor safety data. After participant discontinuation from the trial, regular updates on further treatments and survival status will be requested from the investigator. The entire study (from the first patient entering the study to the last collect of follow-up information) is 4-5 years long.

Open the original ClinicalTrials.gov record → · Download preserved record

What did the study report?

Outcomes, safety and baseline populations are separate source sections. Quality-of-life measures appear under their original outcome titles.

flow

Participant flow

→

baseline

Baseline characteristics

→

outcome · POSTED

Progression-free Survival (PFS) Time - Independent Review Committee (IRC) Assessments

→

outcome · POSTED

Progression-free Survival Time (Chinese V-Ki-ras2 Kirsten Rat Sarcoma Viral Oncogene Homolog (KRAS) Wild-Type Population) - Independent Review Committee (IRC) Assessments

→

outcome · POSTED

Progression-free Survival Time (KRAS Mutant Population) - Independent Review Committee (IRC) Assessments

→

outcome · POSTED

Overall Survival Time (OS)

→

outcome · POSTED

Overall Survival Time (KRAS Wild-Type Population)

→

outcome · POSTED

Overall Survival Time (KRAS Mutant Population)

→

outcome · POSTED

Best Overall Response Rate - Independent Review Committee (IRC) Assessments

→

outcome · POSTED

Best Overall Response Rate (KRAS Wild-Type Population) - Independent Review Committee (IRC) Assessments

→

outcome · POSTED

Best Overall Response Rate (KRAS Mutant Population) - Independent Review Committee (IRC) Assessments

→

outcome · POSTED

Disease Control Rate - Independent Review Committee (IRC) Assessments

→

outcome · POSTED

Duration of Response - Independent Review Committee (IRC) Assessments

→

outcome · POSTED

Participants With No Residual Tumor After Metastatic Surgery

→

outcome · POSTED

Quality of Life (QOL) Assessment European Organisation for the Research and Treatment of Cancer (EORTC) QLQ-C30 Global Health Status

→

outcome · POSTED

Quality of Life Assessment (EORTC QLQ-C30) Social Functioning

→

outcome · POSTED

Safety - Number of Patients Experiencing Any Adverse Event

→

adverse events

Adverse events

→

more info

Limitations, agreements, and source contact

→
Who could take part
eligibility Criteria
Inclusion Criteria: * Diagnosis of histologically confirmed adenocarcinoma of the colon or rectum * Inoperable metastatic disease * Immunohistochemical evidence of epidermal growth factor receptor expression in tumor tissue * Presence of at least 1 bi-dimensionally measurable index lesion Exclusion Criteria: * Previous irinotecan-based chemotherapy * Previous chemotherapy for colorectal cancer except adjuvant treatment if terminated more than 6 months before the start of study treatment * Radiotherapy, surgery (excluding prior diagnostic biopsy) or any investigational drug in the 30 days before the start of study treatment * Brain metastasis
healthy Volunteers
false
minimum Age
18 Years
sex
ALL
std Ages
  1. ADULT
  2. OLDER_ADULT
Treatment arms and interventions
arm Groups
  1. intervention Names
    1. Drug: Cetuximab
    2. Drug: FOLFIRI (5-Fluorouracil, Folinic acid, Irinotecan)
    label
    Cetuximab Plus FOLFIRI
    type
    EXPERIMENTAL
  2. intervention Names
    1. Drug: FOLFIRI (5-Fluorouracil, Folinic acid, Irinotecan)
    label
    FOLFIRI Alone
    type
    ACTIVE_COMPARATOR
interventions
  1. arm Group Labels
    1. Cetuximab Plus FOLFIRI
    description
    Cetuximab intravenous infusion of 400mg/m\^2 for the first infusion then weekly intravenous infusion of 250mg/m\^2. Number of Cycles: until progression or unacceptable toxicity develops
    name
    Cetuximab
    type
    DRUG
  2. arm Group Labels
    1. Cetuximab Plus FOLFIRI
    2. FOLFIRI Alone
    description
    Bi-weekly Irinotecan infusion of 180mg/m\^2, Folinic Acid infusion of 400mg/m\^2 (racemic) or 200mg/m\^2 (L-form), 5-Fluorouracil bolus of 400mg/m\^2 followed by a 46-hour continuous infusion of 2400mg/m\^2 Number of Cycles: until progression or unacceptable toxicity develops
    name
    FOLFIRI (5-Fluorouracil, Folinic acid, Irinotecan)
    type
    DRUG
Study design
allocation
RANDOMIZED
intervention Model
PARALLEL
masking Info
masking
NONE
primary Purpose
TREATMENT
Enrollment
count
1221
type
ACTUAL
Registered outcome plans (not posted results)
primary Outcomes
  1. description
    Duration from randomization until radiological progression (based on modified World Health Organisation (WHO) criteria) or death due to any cause. Only deaths within 60 days of last tumor assessment are considered. Patients without event are censored on the date of last tumor assessment.
    measure
    Progression-free Survival (PFS) Time - Independent Review Committee (IRC) Assessments
    time Frame
    Time from randomisation to disease progression, death or last tumour assessment, reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  2. description
    Duration from randomization until radiological progression (based on modified WHO criteria) or death due to any cause. Only deaths within 60 days of last tumor assessment are considered. Patients without event are censored on the date of last tumor assessment.
    measure
    Progression-free Survival Time (Chinese V-Ki-ras2 Kirsten Rat Sarcoma Viral Oncogene Homolog (KRAS) Wild-Type Population) - Independent Review Committee (IRC) Assessments
    time Frame
    Time from randomisation to disease progression, death or last tumour assessment, reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  3. description
    Duration from randomization until radiological progression (based on modified WHO criteria) or death due to any cause. Only deaths within 60 days of last tumor assessment are considered. Patients without event are censored on the date of last tumor assessment.
    measure
    Progression-free Survival Time (KRAS Mutant Population) - Independent Review Committee (IRC) Assessments
    time Frame
    Time from randomisation to disease progression, death or last tumour assessment, reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
secondary Outcomes
  1. description
    Time from randomization to death. Patients without event are censored at the last date known to be alive or at the clinical cut-off date, whichever is later.
    measure
    Overall Survival Time (OS)
    time Frame
    Time from randomisation to death or last day known to be alive, reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 31 May 2009
  2. description
    Time from randomization to death. Patients without event are censored at the last date known to be alive or at the clinical cut-off date, whichever is later.
    measure
    Overall Survival Time (KRAS Wild-Type Population)
    time Frame
    Time from randomisation to death or last day known to be alive reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 31 May 2009
  3. description
    Time from randomization to death. Patients without event are censored at the last date known to be alive or at the clinical cut-off date, whichever is later.
    measure
    Overall Survival Time (KRAS Mutant Population)
    time Frame
    Time from randomisation to death or last day known to be alive reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 31 May 2009
  4. description
    The best overall response rate is defined as the percentage of subjects having achieved confirmed Complete Response + Partial Response as the best overall response according to radiological assessments (based on modified WHO criteria).
    measure
    Best Overall Response Rate - Independent Review Committee (IRC) Assessments
    time Frame
    evaluations were performed every 6 weeks until progression reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  5. description
    The best overall response rate is defined as the percentage of subjects having achieved confirmed Complete Response + Partial Response as the best overall response according to radiological assessments (based on modified WHO criteria).
    measure
    Best Overall Response Rate (KRAS Wild-Type Population) - Independent Review Committee (IRC) Assessments
    time Frame
    evaluations were performed every 6 weeks until progression reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  6. description
    The best overall response rate is defined as the percentage of subjects having achieved confirmed Complete Response + Partial Response as the best overall response according to radiological assessments (based on modified WHO criteria).
    measure
    Best Overall Response Rate (KRAS Mutant Population) - Independent Review Committee (IRC) Assessments
    time Frame
    evaluations were performed every 6 weeks until progression reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  7. description
    The disease control rate is defined as the percentage of subjects having achieved confirmed Complete Response + Partial Response + Stable Disease as best overall response according to radiological assessments (based on modified WHO criteria).
    measure
    Disease Control Rate - Independent Review Committee (IRC) Assessments
    time Frame
    Evaluations were performed every 6 weeks until progression reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  8. description
    Time from first assessment of Complete Response or Partial Response to disease progression or death (within 60 days of last tumor assessment). Patients without event are censored on the date of last tumor assessment. Tumor assessments based on modified WHO criteria.
    measure
    Duration of Response - Independent Review Committee (IRC) Assessments
    time Frame
    Time from first assessment of complete response or partial response to disease progression, death or last tumor assessment reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  9. description
    Participants with no residual tumor after on-study surgery for metastases
    measure
    Participants With No Residual Tumor After Metastatic Surgery
    time Frame
    time from first dose up to 30 days after last dose of study treatment reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 30 Nov 2007
  10. description
    Mean global health status scores (EORTC QLQ-C30) against time for each treatment group. Scores were derived from mutually exclusive sets of items, with scale scores ranging from 0 to 100 after a linear transformation. Higher scores indicate a better QoL.
    measure
    Quality of Life (QOL) Assessment European Organisation for the Research and Treatment of Cancer (EORTC) QLQ-C30 Global Health Status
    time Frame
    at baseline, at week 8, at week 16, at week 24, at week 32, and at week 40, reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  11. description
    Mean social functioning scores (EORTC QLQ-C30) against time for each treatment group. Scores were derived from mutually exclusive sets of items, with scale scores ranging from 0 to 100 after a linear transformation. Higher scores indicate a higher level of functioning.
    measure
    Quality of Life Assessment (EORTC QLQ-C30) Social Functioning
    time Frame
    at baseline, at week 8, at week 16, at week 24, at week 32, and at week 40, reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 27 July 2006
  12. description
    Please refer to Adverse Events section for further details
    measure
    Safety - Number of Patients Experiencing Any Adverse Event
    time Frame
    time from first dose up to 30 days after last dose of study treatment reported between day of first patient randomised, 10 Aug 2004, until cut-off date, 30 Nov 2007
Full study description
brief Summary
Drugs used against cancer work in different ways to stop the growth of tumor cells, either by killing the cells or by stopping them from dividing. Monoclonal antibodies, such as cetuximab, can block tumor growth in different ways. Giving combination chemotherapy together with cetuximab as first treatment after diagnosis of a metastatic colorectal cancer ('1st-line' treatment) may improve the treatment efficacy. However, it is not yet known whether giving combination chemotherapy together with cetuximab is more effective than combination chemotherapy alone. This open-label trial investigates the effectiveness of cetuximab in combination with a standard and effective chemotherapy (5-Fluorouracil (5FU)/Folinic acid (FA) plus irinotecan) for metastatic colorectal cancer in first-line setting, compared to the same chemotherapy alone on patient expressing the epidermal growth factor (EGF) receptor. Patients expressing this EGF Receptor will be randomly assign in one of the 2 groups to either receive the combination chemotherapy alone or with cetuximab (open-label study) and will then be treated until progression of the disease or unacceptable toxicity occur. Regular efficacy assessments (every 8 weeks) based on imaging will be performed throughout the study together with regular safety assessments (e.g. safety labs). An independent Safety Board of experts will also monitor safety data. After participant discontinuation from the trial, regular updates on further treatments and survival status will be requested from the investigator. The entire study (from the first patient entering the study to the last collect of follow-up information) is 4-5 years long.
Source references
references
  1. citation
    Van Cutsem E, Kohne CH, Hitre E, Zaluski J, Chang Chien CR, Makhson A, D'Haens G, Pinter T, Lim R, Bodoky G, Roh JK, Folprecht G, Ruff P, Stroh C, Tejpar S, Schlichting M, Nippgen J, Rougier P. Cetuximab and chemotherapy as initial treatment for metastatic colorectal cancer. N Engl J Med. 2009 Apr 2;360(14):1408-17. doi: 10.1056/NEJMoa0805019.
    pmid
    19339720
    type
    RESULT
  2. citation
    Van Cutsem E, Lang I, Folprecht G, Nowacki M, Cascinu S, Shchepotin I, Maurel J, Cunningham D, Celik I, Kohne C Cetuximab plus FOLFIRI in the treatment of metastatic colorectal cancer (mCRC): The influence of KRAS and BRAF biomarkers on outcome: Updated data from the CRYSTAL trial. ASCO 2010 Gastrointestinal Cancers Symposium, Orlando, USA January 2010 Abstract No: 281
    type
    RESULT
  3. citation
    Lang I, Kohne CH, Folprecht G, Nowacki MP, Cascinu S, Shchepotin I, Maurel J, Cunningham D, Zubel A, Van Cutsem E Cetuximab plus FOLFIRI in 1st-line treatment of metastatic colorectal cancer: Quality of life (QoL) analysis of patients (pts) with KRAS wild-type (wt) tumours in the CRYSTAL trial. European Journal of Cancer Supplements. 2009 7(2):345
    type
    RESULT
  4. citation
    Dercle L, Lu L, Lichtenstein P, Yang H, Wang D, Zhu J, Wu F, Piessevaux H, Schwartz LH, Zhao B. Impact of Variability in Portal Venous Phase Acquisition Timing in Tumor Density Measurement and Treatment Response Assessment: Metastatic Colorectal Cancer as a Paradigm. JCO Clin Cancer Inform. 2017 Nov;1:1-8. doi: 10.1200/CCI.17.00108.
    pmid
    30657405
    type
    DERIVED
  5. citation
    Tejpar S, Stintzing S, Ciardiello F, Tabernero J, Van Cutsem E, Beier F, Esser R, Lenz HJ, Heinemann V. Prognostic and Predictive Relevance of Primary Tumor Location in Patients With RAS Wild-Type Metastatic Colorectal Cancer: Retrospective Analyses of the CRYSTAL and FIRE-3 Trials. JAMA Oncol. 2017 Feb 1;3(2):194-201. doi: 10.1001/jamaoncol.2016.3797.
    pmid
    27722750
    type
    DERIVED
  6. citation
    Licitra L, Storkel S, Kerr KM, Van Cutsem E, Pirker R, Hirsch FR, Vermorken JB, von Heydebreck A, Esser R, Celik I, Ciardiello F. Predictive value of epidermal growth factor receptor expression for first-line chemotherapy plus cetuximab in patients with head and neck and colorectal cancer: analysis of data from the EXTREME and CRYSTAL studies. Eur J Cancer. 2013 Apr;49(6):1161-8. doi: 10.1016/j.ejca.2012.11.018. Epub 2012 Dec 19.
    pmid
    23265711
    type
    DERIVED
Source notices and limitations
    Discovery and provenance
    1. release id
      ctgov-registry-7ad944f6deaf1f5cd6122126
      edge id
      nct-edge-05e04479fbaff654f39c
      requested nct id
      NCT00154102
      primary nct id
      NCT00154102
      source kind
      fda_spl_label
      source url
      https://api.fda.gov/drug/label.json?search=%28indications_and_usage%3Acancer+OR+indications_and_usage%3Acarcinoma+OR+indications_and_usage%3Acarcinomas+OR+indications_and_usage%3Alymphoma+OR+indications_and_usage%3Alymphomas+OR+indications_and_usage%3Aleukemia+OR+indications_and_usage%3Aleukaemia+OR+indications_and_usage%3Asarcoma+OR+indications_and_usage%3Asarcomas+OR+indications_and_usage%3Amelanoma+OR+indications_and_usage%3Amyeloma+OR+indications_and_usage%3Atumor+OR+indications_and_usage%3Atumors+OR+indications_and_usage%3Atumour+OR+indications_and_usage%3Atumours+OR+indications_and_usage%3Aneoplasm+OR+indications_and_usage%3Aneoplasms+OR+indications_and_usage%3Amalignant+OR+indications_and_usage%3Amalignancy+OR+indications_and_usage%3Amyelodysplastic+OR+indications_and_usage%3Amyelofibrosis+OR+indications_and_usage%3Amastocytosis+OR+indications_and_usage%3Aglioma+OR+indications_and_usage%3Aglioblastoma+OR+indications_and_usage%3Aneuroblastoma+OR+indications_and_usage%3Aretinoblastoma+OR+indications_and_usage%3Apheochromocytoma+OR+indications_and_usage%3Aparaganglioma+OR+indications_and_usage%3Amyeloproliferative+OR+indications_and_usage%3Awaldenstrom+OR+indications_and_usage%3Apolycythemia+OR+indications_and_usage%3Athrombocythemia+OR+indications_and_usage%3Adesmoid+OR+indications_and_usage%3Aneurofibromatosis+OR+indications_and_usage%3Ahistiocytosis%29+AND+%28openfda.application_number%3ANDA%2A+OR+openfda.application_number%3ABLA%2A%29&limit=100&skip=0&sort=id%3Aasc
      source record id
      1cd448bd-5230-450c-ad4c-359e6d54cd2b
      source file sha256
      0dba7a040bbbf460aa9f482c5b67c9f28f75fc9df775ee1e7b345b758f780e07
      payload sha256
      e9da063f34851726cfd05ed485c846b2a7b89151e8c719c0734218de37c55d82
      payload
      application numbers
      1. BLA125084
      clinical indication matching status
      not_inferred
      end exclusive
      true
      id
      nct-edge-05e04479fbaff654f39c
      link basis
      explicit_NCT_identifier_in_acquired_source
      nct id
      NCT00154102
      occurrences
      1. context exact
        (DoR) was 5.8 months (range 1.2 to 5.8 months). 14.2 K-Ras Wild-type, EGFR-expressing, Metastatic Colorectal Cancer (CRC) In Combination with FOLFIRI CRYSTAL (NCT00154102) was a randomized, open-label, multicenter, study of 1217 patients with EGFR-expressing, mCRC. Patients were randomized (1:1) to receive either a cetuximab pro
        end
        7003
        exact text
        NCT00154102
        start
        6992
      offset unit
      unicode_code_points
      source file
      /tmp/cancer-full-research/indications/raw/labels-00000.json
      source file sha256
      0dba7a040bbbf460aa9f482c5b67c9f28f75fc9df775ee1e7b345b758f780e07
      source json pointer
      /results/98/clinical_studies/0
      source kind
      fda_spl_label
      source record id
      1cd448bd-5230-450c-ad4c-359e6d54cd2b
      source string basis
      parsed_JSON_string_unmodified
      source string sha256
      fa4da85c619cd62b341fcaec9e211f4ac23f572d1a5e3d4f6003330dea2232b2
      source url
      https://api.fda.gov/drug/label.json?search=%28indications_and_usage%3Acancer+OR+indications_and_usage%3Acarcinoma+OR+indications_and_usage%3Acarcinomas+OR+indications_and_usage%3Alymphoma+OR+indications_and_usage%3Alymphomas+OR+indications_and_usage%3Aleukemia+OR+indications_and_usage%3Aleukaemia+OR+indications_and_usage%3Asarcoma+OR+indications_and_usage%3Asarcomas+OR+indications_and_usage%3Amelanoma+OR+indications_and_usage%3Amyeloma+OR+indications_and_usage%3Atumor+OR+indications_and_usage%3Atumors+OR+indications_and_usage%3Atumour+OR+indications_and_usage%3Atumours+OR+indications_and_usage%3Aneoplasm+OR+indications_and_usage%3Aneoplasms+OR+indications_and_usage%3Amalignant+OR+indications_and_usage%3Amalignancy+OR+indications_and_usage%3Amyelodysplastic+OR+indications_and_usage%3Amyelofibrosis+OR+indications_and_usage%3Amastocytosis+OR+indications_and_usage%3Aglioma+OR+indications_and_usage%3Aglioblastoma+OR+indications_and_usage%3Aneuroblastoma+OR+indications_and_usage%3Aretinoblastoma+OR+indications_and_usage%3Apheochromocytoma+OR+indications_and_usage%3Aparaganglioma+OR+indications_and_usage%3Amyeloproliferative+OR+indications_and_usage%3Awaldenstrom+OR+indications_and_usage%3Apolycythemia+OR+indications_and_usage%3Athrombocythemia+OR+indications_and_usage%3Adesmoid+OR+indications_and_usage%3Aneurofibromatosis+OR+indications_and_usage%3Ahistiocytosis%29+AND+%28openfda.application_number%3ANDA%2A+OR+openfda.application_number%3ABLA%2A%29&limit=100&skip=0&sort=id%3Aasc
      spl effective time
      20260416
      spl set id
      8bc6397e-4bd8-4d37-a007-a327e4da34d9
    2. release id
      ctgov-registry-7ad944f6deaf1f5cd6122126
      edge id
      nct-edge-901c6d4c74e0c1e823a9
      requested nct id
      NCT00154102
      primary nct id
      NCT00154102
      source kind
      nci_explicit_reference_or_link
      source record id
      Source null
      source file sha256
      a558d780598239714e125739b5bd8435388a575761b36a23c5dce5b640f02acf
      payload sha256
      208ef165e2a75218fa9fba553631dada6e564104580c8ea174327830baafc92c
      payload
      clinical indication matching status
      not_inferred
      end exclusive
      true
      id
      nct-edge-901c6d4c74e0c1e823a9
      link basis
      explicit_NCT_identifier_in_acquired_source
      nct id
      NCT00154102
      occurrences
      1. context exact
        ed for use in patients with metastatic colorectal cancer refractory to 5-FU and irinotecan.</li></ul></div></li><li>The Crystal Study (<a href="/clinicaltrials/NCT00154102">EMR 62202-013</a> [NCT00154102]) randomly assigned 1,198 patients with stage IV colorectal cancer to FOLFIRI with or without cetuximab.[<a href="#cit/section_
        end
        267597
        exact text
        NCT00154102
        start
        267586
      2. context exact
        static colorectal cancer refractory to 5-FU and irinotecan.</li></ul></div></li><li>The Crystal Study (<a href="/clinicaltrials/NCT00154102">EMR 62202-013</a> [NCT00154102]) randomly assigned 1,198 patients with stage IV colorectal cancer to FOLFIRI with or without cetuximab.[<a href="#cit/section_8.35">35</a>][<a href="/Common/P
        end
        267629
        exact text
        NCT00154102
        start
        267618
      offset unit
      unicode_code_points
      source file
      /tmp/cancer-full-research/nci/raw/000ed4364d31964822.html
      source file sha256
      a558d780598239714e125739b5bd8435388a575761b36a23c5dce5b640f02acf
      source json pointer
      Source null
      source kind
      nci_explicit_reference_or_link
      source record id
      Source null
      source retrieved at
      2026-09-09T23:21:38.943216+00:00
      source string basis
      UTF-8_text_with_universal_newline_translation
      source string sha256
      387f265965c4b56957c6f58b4d8eb54b8d5a660b7f6ef6c433eff171e69dbb77
      source title
      Rectal Cancer Treatment (PDQ®)–Health Professional Version
      source update dates
      1. context
        Updated: February 12, 2025
        datetime
        2025-02-12T12:00:00Z
        display
        February 12, 2025
    3. release id
      ctgov-registry-7ad944f6deaf1f5cd6122126
      edge id
      nct-edge-fd0366beaa7eb10cc8a4
      requested nct id
      NCT00154102
      primary nct id
      NCT00154102
      source kind
      nci_explicit_reference_or_link
      source record id
      Source null
      source file sha256
      c3362deecde47509664af2cf063d6a1d02687d3d0ea0ee66f5973c4fee17def9
      payload sha256
      97c53dcb46ef3e60b1b5e9a7d4ade2a058fb74e8bea7c84aa976134b008bd8c4
      payload
      clinical indication matching status
      not_inferred
      end exclusive
      true
      id
      nct-edge-fd0366beaa7eb10cc8a4
      link basis
      explicit_NCT_identifier_in_acquired_source
      nct id
      NCT00154102
      occurrences
      1. context exact
        ed for use in patients with metastatic colorectal cancer refractory to 5-FU and irinotecan.</li></ul></div></li><li>The Crystal Study (<a href="/clinicaltrials/NCT00154102">EMR 62202-013</a> [NCT00154102]) randomly assigned 1,198 patients with stage IV colorectal cancer to FOLFIRI with or without cetuximab.[<a href="#cit/section_
        end
        213975
        exact text
        NCT00154102
        start
        213964
      2. context exact
        static colorectal cancer refractory to 5-FU and irinotecan.</li></ul></div></li><li>The Crystal Study (<a href="/clinicaltrials/NCT00154102">EMR 62202-013</a> [NCT00154102]) randomly assigned 1,198 patients with stage IV colorectal cancer to FOLFIRI with or without cetuximab.[<a href="#cit/section_9.76">76</a>][<a href="/Common/P
        end
        214007
        exact text
        NCT00154102
        start
        213996
      offset unit
      unicode_code_points
      source file
      /tmp/cancer-full-research/nci/raw/610f1b1dfbdfdb9c66.html
      source file sha256
      c3362deecde47509664af2cf063d6a1d02687d3d0ea0ee66f5973c4fee17def9
      source json pointer
      Source null
      source kind
      nci_explicit_reference_or_link
      source record id
      Source null
      source retrieved at
      2026-09-09T23:21:38.940003+00:00
      source string basis
      UTF-8_text_with_universal_newline_translation
      source string sha256
      58f90914226eeac4b647c55350600c5f4db658e650463c199f43412e56552b42
      source title
      Colon Cancer Treatment (PDQ®)–Health Professional Version
      source update dates
      1. context
        Updated: February 12, 2025
        datetime
        2025-02-12T12:00:00Z
        display
        February 12, 2025

    Preserved source evidence · Independent clinical review pending · Not medical advice