A phase II and pharmacokinetic study with oral piritrexim for metastatic breast cancer
1993

Study of Oral Piritrexim for Metastatic Breast Cancer

Sample size: 24 publication Evidence: low

Author Information

Author(s): E.G.E. de Vries, J.A. Gietema, P. Workman, J.E. Scott, A. Crawshaw, H.J. Dobbs, I. Dennis, N.H. Mulder, D. Th. Sleijfer, P.H.B. Willemse

Primary Institution: University Hospital Groningen

Hypothesis

Can oral piritrexim be an effective treatment for metastatic breast cancer?

Conclusion

Orally administered piritrexim shows little activity in patients with locally advanced or metastatic breast cancer.

Supporting Evidence

  • One patient achieved a partial response lasting for 24 weeks.
  • Three patients had stable disease during 12 weeks of treatment.
  • Seventeen patients had progressive disease.

Takeaway

This study tested a new medicine called piritrexim to see if it helps people with advanced breast cancer, but it didn't work very well.

Methodology

Patients received 25 mg of piritrexim orally three times daily for four days, repeated weekly, with dose adjustments based on toxicity.

Limitations

The study had a small sample size and a low response rate.

Participant Demographics

All participants were female, aged 35 to 84, with a median age of 66.

Statistical Information

Confidence Interval

0 to 24%

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