Immunocytochemical assessment of bone marrow aspirates for monitoring response to chemotherapy in small-cell lung cancer patients
1999

Monitoring Chemotherapy Response in Small-Cell Lung Cancer Patients

Sample size: 30 publication Evidence: moderate

Author Information

Author(s): Pelosi G, Pasini F, Ottensmeier C, Pavanel F, Bresaola E, Bonetti A, Fraggetta F, Terzi A, Iannucci A, Cetto G L

Primary Institution: European Institute of Oncology

Hypothesis

The study evaluates the efficacy of chemotherapy in purging bone marrow and its relationship with survival in small-cell lung cancer patients.

Conclusion

Chemotherapy is not effective in purging bone marrow, even in patients who respond to treatment.

Supporting Evidence

  • Marrow contamination was associated with lower survival.
  • Marrow involvement was an independent factor of unfavourable prognosis.
  • Only 25% of initially positive responders had negative bone marrow after chemotherapy.

Takeaway

The study found that chemotherapy doesn't clean out cancer cells from the bone marrow, which is important for understanding how well the treatment is working.

Methodology

112 bone marrow aspirates from 30 chemo-naïve patients were stained using anti-NCAM antibodies at diagnosis and after chemotherapy.

Participant Demographics

30 chemo-naïve patients with small-cell lung cancer.

Statistical Information

P-Value

0.002

Statistical Significance

p=0.002

Digital Object Identifier (DOI)

10.1038/sj.bjc.6690831

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