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. 2018 Oct 15;2018(10):CD007927. doi: 10.1002/14651858.CD007927.pub4

Lui 2016.

Methods Multi‐centre open‐label phase II randomised controlled trial
Participants 223 women with advanced or recurrent epithelial ovarian, fallopian tube, or primary peritoneal cancer that was platinum resistant or refractory per Gynecologic Oncology Group criteria. Participants underwent mandatory pretreatment core needle biopsy and submitted archived tumour samples as available.
Age
Seribantumab + Paclitaxel (S + P) 58.5 years (30 to 82); Paclitaxel (P) = 60.6 years (28 to 85)
Histology
Seribantumab + Paclitaxel (S + P): serous = 103 (73.6); endometrioid = 7 (5.0%); clear cell = 6 (4.3%); transitional cell = 2 (1.4%); mixed epithelial = 0 (0%); undifferentiated = 7 (5.0%); other = 12 (8.6%)
Paclitaxel (P): serous = 55 (66.2%); endometrioid = 5 (6.0%); clear cell = 2 (2.4%); transitional cell = 0 (0%); mixed epithelial = 1 (1.2%); undifferentiated = 0 (0%); other = 18 (21.7%)
Number of platinum‐based therapies
S + P = 1 cycle = 25 (17.9%); 2 or more = 114 (81.4%)
P = 1 cycle = 17 (20.5%); 2 or more = 65 (78.3%)
Interventions Seribantumab + Paclitaxel (S + P) vs Paclitaxel (P)
Seribantumab = 40 mg/kg loading dose, then 20 mg/kg once per week
Paclitaxel = 80 mg/m² during cycle 1, with optional modification in subsequent cycles to 80 mg/m² once per week for 3 weeks followed by 1 week of rest
Outcomes 260 participants enrolled; 223 eligible
S + P = 140 participants; P = 83 participants
OS
Median OS = S + P = 13.7 months; P = 10.12 months (HR 0.991, 95% CI 0.62 to 1.584; P = 0.972)
PFS
Median PFS = S + P = 3.75 months vs P = 3.68 months (HR 1.027, 95% CI 0.741 to 1.425; P = 0.864)
QoL
"no significant changes from baseline"; data not provided
Overall response rate
S + P 13.6% (95% CI 19.9 to 19.6%) (n = 140)
P = 18.1% (95% CI 9.8 to 26.4%) (n = 83)
Toxicity (G3 or more)
  • Overall G3 or more = 50/140 (S + P); 24/80 (P)

  • Anaemia = 13/140; 7/80

  • Neutropaenia = 9/140 (S + P); 8/80 (P)

  • Fatigue = 11/140 (S + P); 4/80 (P)

  • Hypokalaemia = 11/140 (S + P); 2/80 (P)

  • Nausea = 5/140 (S + P); 3/80 (P)

  • Vomiting = 2/140 (S + P); 3/80 (P)

  • Abdominal pain = 10/140 (S + P); 4/80 (P)

  • Diarrhoea = 2/140 (S + P); 3/80 (P)

  • VTE = 8/140 (S + P); 6/80 (P)

  • Dyspneoa = 6/140 (S + P); 2/80 (P)

Notes Trial was supported by Merrimack Pharmaceuticals, and several trial authors were employees of the company.
Risk of bias
Bias Authors' judgement Support for judgement
Random sequence generation (selection bias) Unclear risk No details about methods for randomisation provided in the paper
Allocation concealment (selection bias) Unclear risk No details about methods for allocation concealment provided in the paper
Blinding of participants and personnel (performance bias) 
 Objective outcome measures (Overall Survival) Low risk Unlikely to be affected by lack of blinding
Blinding of participants and personnel (performance bias) 
 Subjective outcome measures (PFS; Toxicity; QoL) High risk Open‐label
Blinding of outcome assessment (detection bias) 
 Objective outcome measures (overall survival) Unclear risk Unlikely to be affected by lack of blinding
Blinding of outcome assessment (detection bias) 
 Subjective outcome measures (PFS, Toxicity, QoL) High risk Open‐label
Incomplete outcome data (attrition bias) 
 All outcomes Unclear risk Intention‐to‐treat analysis was undertaken, and all participants were accounted for in the CONSORT diagram and for PFS and OS on the basis of ITT, but reasons for withdrawal from toxicity outcomes for 3 participants are not clear.
Selective reporting (reporting bias) Unclear risk All expected outcomes reported, although specific data for QoL not reported
Other bias Unclear risk Several trial authors are employees of the drug company supporting the trial, although no significant effect can be seen.