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- Title
Antitumor Effect of Nivolumab on Subsequent Chemotherapy for Platinum‐Resistant Ovarian Cancer.
- Authors
Inayama, Yoshihide; Hamanishi, Junzo; Matsumura, Noriomi; Murakami, Ryusuke; Abiko, Kaoru; Yamaguchi, Ken; Baba, Tsukasa; Horie, Katsuyuki; Konishi, Ikuo; Mandai, Masaki
- Abstract
Platinum‐resistant recurrent ovarian cancer is generally refractory to chemotherapy. Programmed cell death‐1 (PD‐1) signaling is a new target for antitumor therapy. The anti‐PD‐1 antibody nivolumab had a 10% durable complete response rate in our phase II clinical trial. However, how nivolumab affects sensitivity to subsequent chemotherapy remains unclear. We encountered several cases of unexpected antitumor response among patients who underwent palliative chemotherapy in the follow‐up study of our phase II nivolumab trial (UMIN000005714). Several agents had an unexpected antitumor response in patients who were resistant or refractory to standard chemotherapeutic agents. In one patient, both pegylated liposomal doxorubicin (PLD) and nedaplatin (CDGP) resulted in partial response. In another patient, PLD and CDGP resulted in partial response and stable disease, respectively. These two patients remained alive on the cutoff date. These two cases raise the possibility that nivolumab might improve sensitivity to adequate chemotherapy for ovarian cancer. Programmed cell death‐1 (PD‐1) signaling is a new target of anti‐tumor therapy that involves immune reactivation; however, its antitumor effect on subsequent chemotherapy is unclear. We encountered several cases of unexpected antitumor response among patients who underwent palliative chemotherapy in the follow‐up study of our phase II nivolumab trial. Two representative cases are described here.
- Subjects
ANTINEOPLASTIC agents; THERAPEUTIC use of monoclonal antibodies; PLATINUM compounds; CANCER chemotherapy; DOXORUBICIN; DRUG resistance in cancer cells; OVARIAN tumors; THERAPEUTICS
- Publication
Oncologist, 2018, Vol 23, Issue 11, p1382
- ISSN
1083-7159
- Publication type
Article
- DOI
10.1634/theoncologist.2018-0167