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Effect of chemotherapy and growth factor on cancer and stem cells in blood.

A research study to evaluate the kinetics of mobilisation of blood stem cells and circulating tumour cells in response to docetaxel chemotherapy and pegfilgrastim.

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ANZCTR
Registry ID
ACTRN12607000221459
Enrollment
10
Registered
2007-04-23
Start date
2007-05-01
Completion date
Unknown
Last updated
2020-01-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

None listed

Brief summary

Use of chemotherapy and growth factors can affect the number of stem cells and cancer cells in blood circulation. Few studies have also shown that number of cancer cells can be of prognostic significance. There are no studies till date which have looked systematically at the influence of chemotherapy and growth factors on these cells. Hence present study was designed to answer these questions. The results of the study may not directly influence the way we treat the patients today but will definitely help us to understand the complex nature of breast cancer.

Interventions

It is a research study where patients who are receiving standard chemotherapy (docetaxel 100mg/m2 every 3 weeks) and growth factor (pegfilgrastim 6 mg subcutaneous injection 24 hours after chemotherapy) for metastatic breast cancer will be asked to give blood sample (10 ml) daily from Day 4- Day 11 after first dose of chemotherapy. One more blood sample will be collected on D21. There will not be any further assessment or follow-up as part of the trial. The blood sample will be analysed for stem

It is a research study where patients who are receiving standard chemotherapy (docetaxel 100mg/m2 every 3 weeks) and growth factor (pegfilgrastim 6 mg subcutaneous injection 24 hours after chemotherapy) for metastatic breast cancer will be asked to give blood sample (10 ml) daily from Day 4- Day 11 after first dose of chemotherapy. One more blood sample will be collected on D21. There will not be any further assessment or follow-up as part of the trial. The blood sample will be analysed for stem cells and tumor cells and the effect of treatment will be studied. The patients will continue to receive their treatment as part of routine care.

Sponsors

Department of Medical Oncology, Royal Adelaide Hospital
Lead SponsorHospital

Study design

Allocation
Non-randomised trial
Intervention model
Single group
Primary purpose
Treatment
Masking
Open (masking not used)

Eligibility

Sex/Gender
All
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

1. Able to consent 2. Cytological or histological diagnosis of breast cancer 3. Evidence of metastases 4. Being considered for docetaxel chemotherapy 5. performance status = 2. 6. Adequate organ functionHematological- Hb> 90g/L, Absolute Neutrophil Count (ANC) = 1.5 x 109/L, platelets = 100 x 109/L.Liver function - bilirubin = 2 x upper limit normal (ULN), Aspartate Aminotransferase (AST)/Alanine Aminotransferase (ALT)/ Alkaline Phosphatase (ALP) = 2.5 x ULN or = 5 x ULN in presence of liver metastases, S. albumin = 30 g/L.Renal function- Creatinine = 2 ULN, Creatinine clearance > 30 mL/min.

Exclusion criteria

1. Splenomegaly as detected clinically2. Previous treatment with docetaxel.3. Prior pelvic irradiation.4. Pregnancy or lactation. 5. Active second malignancy or past history of any cancer with in last 5 years.6. Patients on other investigational drugs within last 30 days.

Outcome results

None listed

Source: ANZCTR · Data processed: Feb 4, 2026