Risk/ Benefit of Intervention Vinorelbine is a hemisynthetic vinca alkaloid that is traditionally administered intravenously via an infusion. The mechanism of action is disruption of microtubules by their reversible binding to tubulin resulting in mitotic spindle dissolution and metaphase arrest in dividing cells. This trial will afford patients with C5 relapsed platinum resistant or refractory HGSOC additional treatment options that may potentially have greater benefit than standard chemotherapy.