A phase II clinical trial of pegylated liposomal doxorubicin and carboplatin plus bevacizumab in patients with platinum-sensitive recurrent ovarian, fallopian tube, or primary peritoneal cancer

Objective

To assess the safety and efficacy of pegylated liposomal doxorubicin (PLD), carboplatin, plus bevacizumab in patients with ovarian, fallopian tube, or primary peritoneal cancer.

Methods

Patients with platinum-sensitive, recurrent disease received PLD 30 mg/m² and carboplatin area under the curve (AUC) 5 on Day 1 plus bevacizumab 10 mg/kg on Days 1 and 15 of every 28-day cycle, for a maximum of 10 cycles. The primary endpoint was objective response rate (ORR) [complete + partial response]; additional endpoints were safety, duration of response, progression-free survival (PFS), and time to progression (TTP).

Results

Of the 54 patients enrolled, 15 (27.8%) completed the study treatment as planned. Intent-to-treat (all enrolled patients) ORR was 72.2% (95% CI: 58.4, 83.5). Median duration of response was 11.9 months (95% CI: 9.3, not estimable) and median TTP was 13.9 months (95% CI: 11.4, 16.0). PFS was virtually the same as TTP. Three (5.6%) patients discontinued therapy due to disease progression, and another 3 (5.6 %) patients discontinued therapy due to serious adverse events (Grade 4 thrombocytopenia, Grade 3 small/large intestinal obstruction/small intestinal perforation, and Grade 3 abdominal abscess). Fifty (92.6%) patients had ≥ 1 adverse event of interest, most commonly neutropenia (42.6%), hypertension (37.0%), stomatitis (37.0%), proteinuria (37.0%), and palmar-plantar erythrodysesthesia (27.8%). No appreciable decreases in left-ventricular ejection fraction were observed.

Conclusion

Most patients responded to PLD, carboplatin, and bevacizumab combination therapy. The safety profile was consistent with the known toxicities of these agents. These findings present a potential treatment option for women with ovarian, fallopian tube, or primary peritoneal cancer.