An Observational Study on The Correlation Between Time of Initiation of Avastin (Bevacizumab) Treatment And Progression-Free Survival in Patients With Colorectal Cancer (CRONOS 1)

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
Hoffmann-La Roche Identifier:
First received: January 13, 2011
Last updated: April 2, 2016
Last verified: April 2016
This single arm, prospective, observational study will assess the correlation between the time from start of chemotherapy to the start of Avastin (bevacizumab) treatment with progression-free survival in patients with previously untreated metastatic colorectal cancer. Patients will be followed for up to 12 months after progressive disease occurs.

Colorectal Cancer

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective
Official Title: The Correlation Between the Moment of Bevacizumab theRapy initiatiOn and the Efficacy in patieNt With cOlorectal Cancer Treated With AvaStin Based First Line Regimens (CRONOS 1)

Resource links provided by NLM:

Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Correlation of the time from the start of chemotherapy to the start of Avastin treatment with progression-free survival [ Time Frame: 60 months ] [ Designated as safety issue: No ]

Secondary Outcome Measures:
  • Overall survival [ Time Frame: 60 months ] [ Designated as safety issue: No ]
  • Safety: Incidence of adverse events [ Time Frame: 60 months ] [ Designated as safety issue: No ]

Enrollment: 174
Study Start Date: April 2010
Estimated Study Completion Date: April 2016
Estimated Primary Completion Date: April 2016 (Final data collection date for primary outcome measure)


Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
First-line treatment with Avastin

Inclusion Criteria:

  • Adult patients, >/= the 18 years of age
  • Previously untreated metastatic colorectal cancer
  • Scheduled to start 1st line chemotherapeutic treatment
  • ECOG performance status 0-1

Exclusion Criteria:

  • Any conditions included in contraindication list for Avastin
  • Prior chemotherapy for metastatic colorectal cancer
  • Adjuvant/neoadjuvant chemotherapy or radio-chemotherapy of non-metastatic colorectal cancer completed <6 months prior to treatment start
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01277120

Bucharest, Romania, 022328
Sponsors and Collaborators
Hoffmann-La Roche
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

Responsible Party: Hoffmann-La Roche Identifier: NCT01277120     History of Changes
Other Study ID Numbers: ML25178 
Study First Received: January 13, 2011
Last Updated: April 2, 2016
Health Authority: Romania: Ministry of Health

Additional relevant MeSH terms:
Colorectal Neoplasms
Colonic Diseases
Digestive System Diseases
Digestive System Neoplasms
Gastrointestinal Diseases
Gastrointestinal Neoplasms
Intestinal Diseases
Intestinal Neoplasms
Neoplasms by Site
Rectal Diseases processed this record on May 26, 2016