Early Stage Breast CancerReact-GNCT02428114
A Multi Centre Study to Determine the Feasibility of Using an Integrated Consent Model to Compare Standard of Care Administration Schedules of G-CSF (Filgrastim) for Primary Prophylaxis of Chemotherapy-Induced Febrile Neutropenia in Early Stage Breast Cancer (React-G Study)
An observational study of Early Stage Breast Cancer, run by Ottawa Hospital Research Institute at 2 sites in Canada.
Trial summary
In patients with early-stage breast cancer, chemotherapy has substantially improved survival rates for breast cancer patients. Improvements in outcomes, however, are compromised by the considerable toxicities associated with chemotherapy, most notable being neutropenia. Read more about this study
- Who is it for?
- Ages 19 years and older
- Conditions the study is for
- Early Stage Breast Cancer
- How many people
- 142 participants
- Where
- 2 sitesCanada
- Study dates
- May 2015to Mar 2017
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 19 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Newly diagnosed breast cancer patients, who will be receiving FEC-D, AC-D, dose dense AC-T, TC or TAC chemotherapy will be eligible.
Who may be able to join
- Histologically confirmed primary breast cancer
- Planned to start docetaxel component of FEC-D or AC-D, or first cycle of; dose-dense AC-T, TC, FEC-D or TAC chemotherapy
- ≥19 years of age
- Able to provide verbal consent
Who cannot join
- Contraindication to Filgrastim
Trial locations and contacts
2 sites in 1 country.
Canada2 sites
Cancer Centre of Southeastern Ontario at Kingston General Hospital
Kingston, Ontario
The Ottawa Hospital Research Institute
Ottawa, Ontario
About this study
In patients with early-stage breast cancer, chemotherapy has substantially improved survival rates for breast cancer patients. Improvements in outcomes, however, are compromised by the considerable toxicities associated with chemotherapy, most notable being neutropenia. Neutropenia is the presence of abnormally few white blood cells, leading to increased susceptibility to infection and can require hospitalization and need for intravenous antibiotics and is sometimes fatal. Febrile neutropenia can also be associated with treatment delays and dose reductions, potentially compromising treatment efficacy. Patients can receive medication to reduce the risk of febrile neutropenia, such as Neupogen (Filgrastim) as a daily injection for 5, 7, or 10 days. Since there is genuine uncertainty amongst healthcare professionals as to which administration schedule of Neupogen is better, investigators are performing a randomized study in which patients are put into a group by chance to give participants one of three standards of Neupogen daily injection. Neupogen can cost approximately $200 per injection, so if a physician prescribes 10 days for 8 cycles of treatment this can cost $16,000 compared to a 5 day prescription which would cost half this. In addition to cost savings, many patients are not able to give themselves injections on a daily basis and require nursing resources which are utilized at high-cost. This study will use an "integrated consent model" that involves an "oral consent" rather than a written informed consenting process in order to increase the number of patients who may participate while performing a study at a lower cost. While determining the optimal treatment will improve patient comfort and acceptability, using the minimal safe duration of administration may also offer cost savings.
- Conditions
- Early Stage Breast Cancer
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
| Study group | Role | What they receive |
|---|---|---|
| 5 days of filgrastim | Standard of care | |
| 7 days of filgrastim | Standard of care | |
| 10 days of filgrastim | Standard of care |
What is being measured
The primary outcome is the main question the study is designed to answer.
Feasibility of performing this study will be measured with composite endpoints: physician engagement, time for local or provincial research ethics approval, accrual rates, and patient/physician compliance.
Measured: 1 year
Secondary outcomes (5)
Rates of documented febrile neutropenia (laboratory confirmation)
Measured: 1 year
ANC results at the end of each cycle of chemotherapy.
Measured: 1 year
hospital admissions
Measured: 1 year
percentage of patients who require chemotherapy dose delays
Measured: 1 year
percentage of patients who require chemotherapy dose decrease
Measured: 1 year
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted28 Apr 2015 (estimated)
- Study startMay 2015
- Primary completionMar 2017
- Study completionMar 2017
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Early Stage Breast CancerStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Other
- Enrolment
- 142 participants (actual)
Sponsor and investigators
- Lead sponsor
- Ottawa Hospital Research Institute
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Mark Clemons, MD, Principal investigator, The Ottawa Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02428114
- Sponsor's protocol ID
- OTT 14-05
- Acronym
- React-G
- Status last verified
- Sep 2017
- First submitted
- 15 Apr 2015
- Last updated
- 29 Sep 2017
- Results posted
- No
- Data monitoring committee
- No
Publications
Clemons M, Fergusson D, Simos D, Mates M, Robinson A, Califaretti N, Zibdawi L, Bahl M, Raphael J, Ibrahim MFK, Fernandes R, Pitre L, Aseyev O, Stober C, Vandermeer L, Saunders D, Hutton B, Mallick R, Pond GR, Awan A, Hilton J. A multicentre, randomised trial comparing schedules of G-CSF (filgrastim) administration for primary prophylaxis of chemotherapy-induced febrile neutropenia in early stage breast cancer. Ann Oncol. 2020 Jul;31(7):951-957. doi: 10.1016/j.annonc.2020.04.005. Epub 2020 Apr 20.
PubMed 32325257Ibrahim MFK, Hilton J, Mazzarello S, Fergusson D, Hutton B, Robinson A, Califaretti N, Hsu T, Gertler S, Mates M, Stober C, Vandermeer L, Mallick R, Clemons M. A multi-center pragmatic, randomized, feasibility trial comparing standard of care schedules of filgrastim administration for primary febrile neutropenia prophylaxis in early-stage breast cancer. Breast Cancer Res Treat. 2018 Apr;168(2):371-379. doi: 10.1007/s10549-017-4604-y. Epub 2017 Dec 6.
PubMed 29214415
Study at a glance
From the registry record, last updated by the sponsor on 29 Sep 2017. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Multi Centre Study to Determine the Feasibility of Using an Integrated Consent Model to Compare Standard of Care Administration Schedules of G-CSF (Filgrastim) for Primary Prophylaxis of Chemotherapy-Induced Febrile Neutropenia in Early Stage Breast Cancer (React-G Study)
- ClinicalTrials.gov ID
- NCT02428114
- Acronym / sponsor ID
- React-G / OTT 14-05
- Conditions
- Early Stage Breast Cancer
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 142 participants (actual)
- Lead sponsor
- Ottawa Hospital Research InstituteUniversity, hospital or other
- Study start
- May 2015 (actual)
- Primary completion
- Mar 2017 (actual)
- Study completion
- Mar 2017 (actual)
- First posted
- 28 Apr 2015 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
In patients with early-stage breast cancer, chemotherapy has substantially improved survival rates for breast cancer patients. Improvements in outcomes, however, are compromised by the considerable toxicities associated with chemotherapy, most notable being neutropenia. Neutropenia is the presence of abnormally few white blood cells, leading to increased susceptibility to infection and can require hospitalization and need for intravenous antibiotics and is sometimes fatal. Febrile neutropenia can also be associated with treatment delays and dose reductions, potentially compromising treatment efficacy. Patients can receive medication to reduce the risk of febrile neutropenia, such as Neupogen (Filgrastim) as a daily injection for 5, 7, or 10 days. Since there is genuine uncertainty amongst healthcare professionals as to which administration schedule of Neupogen is better, investigators are performing a randomized study in which patients are put into a group by chance to give participants one of three standards of Neupogen daily injection. Neupogen can cost approximately $200 per injection, so if a physician prescribes 10 days for 8 cycles of treatment this can cost $16,000 compared to a 5 day prescription which would cost half this. In addition to cost savings, many patients are not able to give themselves injections on a daily basis and require nursing resources which are utilized at high-cost. This study will use an "integrated consent model" that involves an "oral consent" rather than a written informed consenting process in order to increase the number of patients who may participate while performing a study at a lower cost. While determining the optimal treatment will improve patient comfort and acceptability, using the minimal safe duration of administration may also offer cost savings.
Study design
- Observational model
- Cohort
- Time perspective
- Other
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| 5 days of filgrastim | – | –Standard of care |
| 7 days of filgrastim | – | –Standard of care |
| 10 days of filgrastim | – | –Standard of care |
Who may qualify
- Ages
- 19 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Newly diagnosed breast cancer patients, who will be receiving FEC-D, AC-D, dose dense AC-T, TC or TAC chemotherapy will be eligible.
Key inclusion criteria (4 listed)
- Histologically confirmed primary breast cancer
- Planned to start docetaxel component of FEC-D or AC-D, or first cycle of; dose-dense AC-T, TC, FEC-D or TAC chemotherapy
- ≥19 years of age
- Able to provide verbal consent
Key exclusion criteria (1 listed)
- Contraindication to Filgrastim
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Feasibility of performing this study will be measured with composite endpoints: physician engagement, time for local or provincial research ethics approval, accrual rates, and patient/physician compliance.
Time frame: 1 year
5 secondary outcomes
Rates of documented febrile neutropenia (laboratory confirmation)
Time frame: 1 year
ANC results at the end of each cycle of chemotherapy.
Time frame: 1 year
hospital admissions
Time frame: 1 year
percentage of patients who require chemotherapy dose delays
Time frame: 1 year
percentage of patients who require chemotherapy dose decrease
Time frame: 1 year
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Sep 2017.
- Derived from this study: PubMed 32325257Clemons M, Fergusson D, Simos D, Mates M, Robinson A, Califaretti N, Zibdawi L, Bahl M, Raphael J, Ibrahim MFK, Fernandes R, Pitre L, Aseyev O, Stober C, Vandermeer L, Saunders D, Hutton B, Mallick R, Pond GR, Awan A, Hilton J. A multicentre, randomised trial comparing schedules of G-CSF (filgrastim) administration for primary prophylaxis of chemotherapy-induced febrile neutropenia in early stage breast cancer. Ann Oncol. 2020 Jul;31(7):951-957. doi: 10.1016/j.annonc.2020.04.005. Epub 2020 Apr 20.
- Derived from this study: PubMed 29214415Ibrahim MFK, Hilton J, Mazzarello S, Fergusson D, Hutton B, Robinson A, Califaretti N, Hsu T, Gertler S, Mates M, Stober C, Vandermeer L, Mallick R, Clemons M. A multi-center pragmatic, randomized, feasibility trial comparing standard of care schedules of filgrastim administration for primary febrile neutropenia prophylaxis in early-stage breast cancer. Breast Cancer Res Treat. 2018 Apr;168(2):371-379. doi: 10.1007/s10549-017-4604-y. Epub 2017 Dec 6.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Mark Clemons, MD principal investigator
The Ottawa Hospital
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Early Stage Breast Cancer, run by Ottawa Hospital Research Institute at 2 sites in Canada.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 29 Sep 2017. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Feasibility of performing this study will be measured with composite endpoints: physician engagement, time for local or provincial research ethics approval, accrual rates, and patient/physician compliance. (time frame: 1 year). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02428114, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Sep 2017; AzTrials last refreshed its copy on 27 Oct 2026.