Phase I study of pegylated liposomal doxorubicin and the multidrug-resistance modulator, valspodar
2005

Combining Pegylated Liposomal Doxorubicin with Valspodar in Cancer Treatment

Sample size: 14 publication Evidence: moderate

Author Information

Author(s): Fracasso P M, Blum K A, Ma M K, Tan B R, Wright L P, Goodner S A, Fears C L, Hou W, Arquette M A, Picus J, Denes A, Mortimer J E, Ratner L, Ivy S P, McLeod H L

Primary Institution: Alvin J Siteman Cancer Center and the Department of Medicine, Washington University School of Medicine

Hypothesis

Does the combination of pegylated liposomal doxorubicin and valspodar affect the pharmacokinetics and toxicity in patients with advanced malignancies?

Conclusion

The combination of pegylated liposomal doxorubicin and valspodar can be administered safely with acceptable toxicity and moderate pharmacokinetic interaction.

Supporting Evidence

  • Partial responses were observed in patients with breast and ovarian carcinoma.
  • The mean total doxorubicin clearance decreased significantly with the addition of valspodar.
  • No dose-limiting toxicities were observed at the highest dose of pegylated liposomal doxorubicin.

Takeaway

This study tested a new cancer treatment that combines two drugs to see if they work better together without making patients too sick.

Methodology

Patients received pegylated liposomal doxorubicin followed by valspodar in a phased treatment design to assess maximum tolerated dose and pharmacokinetics.

Potential Biases

Potential bias due to the small number of patients and the specific eligibility criteria.

Limitations

The study had a small sample size and was limited to specific types of malignancies.

Participant Demographics

14 patients, predominantly female (12 females, 2 males), aged 34-80 years.

Statistical Information

P-Value

0.009

Statistical Significance

p=0.009

Digital Object Identifier (DOI)

10.1038/sj.bjc.6602653

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