An Observational Study Called STAR-T to Learn More About the Sequential Treatment With Regorafenib and TAS-102 in Adults With Metastatic Colorectal Cancer Under Real World Conditions
- Conditions
- Metastatic Colorectal Cancer (mCRC)
- Interventions
- Registration Number
- NCT05839951
- Lead Sponsor
- Bayer
- Brief Summary
This is an observational study using data that has been collected from participants who received their usual treatments.
Metastatic colorectal cancer (mCRC) is a cancer of the colon (large bowel) or the rectum (lowest part of the bowel just before the anus) that has spread to other parts of the body.
Regorafenib is an anti-cancer drug that blocks several proteins, called enzymes, which are involved in the growth of cancer. The combination of anti-cancer drugs trifluridine and tipiracil is called TAS-102. It prevents cancer cells from growing and multiplying.
Both regorafenib and TAS-102 are approved treatments for metastatic colorectal cancer and are available for doctors to prescribe to people with mCRC after previous lines of treatment have been unsuccessful.
Regorafenib and TAS-102 work in different ways and impact people differently. People might receive one of these drugs first and followed by the other. The best sequence for taking these drugs is still unclear.
Researchers have also found that TAS-102, when taken with another anti-cancer drug called bevacizumab, helps people live longer than when taken alone.
To better understand the impact of the sequence of taking regorafenib and TAS-102 (with or without bevacizumab), more knowledge is needed about how these work together in people with mCRC in real world settings.
The main purpose of this study is to learn more about the characteristics and impact of treatment in people with mCRC who received regorafenib and TAS-102 (with or without bevacizumab) one after the other. This information will be grouped based on their treatment sequence and age group (less or more than 65 years old).
In addition, the researchers want to learn about :
* how long participants were treated with regorafenib and TAS-102 taken one after the other in a sequential order,
* any treatment for mCRC that the participants received after the sequential treatment,
* any treatment received for a condition in which the bone marrow cannot make up enough blood cells (a common side effect of cancer treatment), during the sequential treatment,
* if and how often white blood cells that fight infection decreased during the sequential treatment,
* the number of hospital or testing facility visits that participants had during the sequential treatment, and
* how long did participants live (also called overall survival).
The participants in this study had already received regorafenib and TS-102 (with or without bevacizumab) as part of their regular care from their doctors.
The data will come from the participants' information stored in an electronic health records database called Flatiron mCRC EDM. Data collected will be from January 2015 to December 2022.
Researchers will only look at the health information from adults in the United States of America.
In this study, only available data from routine care is collected. No visits or tests will be required as part of this study.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- ACTIVE_NOT_RECRUITING
- Sex
- All
- Target Recruitment
- 818
- Adult patients who had diagnosis of mCRC (≥18 years old at diagnosis of mCRC)
- Received sequential treatment of regorafenib and TAS-102 (either mono or with bevacizumab) after mCRC diagnosis, with at least one documented clinical visit on or after treatment; OR
- Patients with mCRC who received combo use of TAS+BEV, with at least one documented clinical visit on or after treatment
- Patients who had a diagnosis of gastrointestinal stromal tumors (GIST) or hepatocellular carcinoma (HCC) or other primary cancers in the baseline period (i.e., 6 months prior to index date) except non-melanoma skin cancers
- Patients involved in clinical trials during the study period (as indicated by the masked therapies)
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Cohort R-T Regorafenib (BAY73-4506, Stivarga®) Patients with mCRC who started with regorafenib first, followed by TAS+/-Bev (Bevacizumab) without other therapies in between. Cohort T-R TAS-102 (trifluridine and tipiracil, Lonsurf®) Patients with mCRC who started with TAS+/-Bev first, followed by regorafenib, without other therapies in between. Cohort TAS+BEV Bevacizumab Patients with mCRC who received combo use of TAS+BEV. Cohort R-T Bevacizumab Patients with mCRC who started with regorafenib first, followed by TAS+/-Bev (Bevacizumab) without other therapies in between. Cohort T-R Bevacizumab Patients with mCRC who started with TAS+/-Bev first, followed by regorafenib, without other therapies in between.
- Primary Outcome Measures
Name Time Method Cohort R-T or Cohort T-R: Descriptive analysis of biomarker Kirsten rat sarcoma 2 viral oncogene homolog (KRAS) Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Biomarker B-Raf Proto-Oncogene (BRAF) and Mismatch Repair / Microsatellite instability (MMR/MSI) will be explored depending on data availability.
Cohort R-T or Cohort T-R: Descriptive analysis of clinical characteristics Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Clinical characteristics includes number and type of prior therapies patient received for mCRC, stage at initial diagnosis, performance status, histology, time since metastatic diagnosis, Line of Treatment (LOT) of index treatment
Cohort R-T or Cohort T-R: Descriptive analysis of demographic Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Demographic includes age, gender, race and ethnicity, insurance.
- Secondary Outcome Measures
Name Time Method Cohort R-T or Cohort T-R: Proportion of patients receiving subsequent therapies Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Cohort R-T or Cohort T-R: Duration of sequential treatment Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Cohort R-T or Cohort T-R: Type of subsequent therapies Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Cohort R-T or Cohort T-R: Frequency of myelosuppression related medical interventions during sequential treatment Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Myelosuppression related medical interventions \[e.g., use of Granulocyte colony stimulating factors (G-CSF)\]
Cohort R-T or Cohort T-R: Overall survival of patients with Regorafenib followed by TAS-102 and vice versa in 3rd line treatment and 4th line treatment Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Cohort R-T or Cohort T-R: Frequency and incidence rate of neutropenia during sequential treatment Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Cohort R-T or Cohort T-R: Number of patients with health care resource utilizations during sequential treatment Retrospective analysis period is from Jan 2015 to Sep 2022 (or 3 months prior to the latest data cutoff date) Health care resource utilizations includes office/hospital visit and lab visit.
Trial Locations
- Locations (1)
Many locations
🇺🇸Whippany, New Jersey, United States