A Study of Pertuzumab in Combination With Trastuzumab and Chemotherapy in Participants With Human Epidermal Growth Factor Receptor 2 (HER2)-Positive Metastatic Gastroesophageal Junction or Gastric Cancer

Summary

This double-blind, placebo-controlled, randomized, multicenter, international, parallel arm study will evaluate the efficacy and safety of pertuzumab in combination with trastuzumab, fluoropyrimidine and cisplatin as first-line treatment in participants with HER2-positive metastatic gastroesophageal junction (GEJ) or gastric cancer (GC). Participants will be randomized to receive pertuzumab 840 milligrams (mg) or placebo intravenously every 3 weeks (q3w) in combination with trastuzumab (initial dose of 8 milligrams per kilogram \[mg/kg\] intravenously \[IV\] followed by 6 mg/kg IV q3w) and cisplatin and fluoropyrimidine (capecitabine or 5-fluorouracil) for the first 6 treatment cycles. Participants will continue to receive pertuzumab or placebo and trastuzumab until disease progression occurrence of unacceptable toxicity or withdrawal from the study for another reason.

Timeline

Start

2013-06-10

Primary completion

2016-12-09

Completion

2019-12-31

Publications

• Tabernero J, Hoff PM, Shen L, Ohtsu A, Shah MA, Siddiqui A, Heeson S, Kiermaier A, Macharia H, Restuccia E, Kang YK. Pertuzumab, trastuzumab, and chemotherapy in HER2-positive gastric/gastroesophageal junction cancer: end-of-study analysis of the JACOB phase III randomized clinical trial. Gastric Cancer. 2023 Jan;26(1):123-131. doi: 10.1007/s10120-022-01335-4. Epub 2022 Sep 6.
• Liu T, Qin Y, Li J, Xu R, Xu J, Yang S, Qin S, Bai Y, Wu C, Mao Y, Wu H, Ge Y, Shen L. Pertuzumab in combination with trastuzumab and chemotherapy for Chinese patients with HER2-positive metastatic gastric or gastroesophageal junction cancer: a subpopulation analysis of the JACOB trial. Cancer Commun (Lond). 2019 Jun 24;39(1):38. doi: 10.1186/s40880-019-0384-6.
• Kirschbrown WP, Wang B, Nijem I, Ohtsu A, Hoff PM, Shah MA, Shen L, Kang YK, Alsina M, Girish S, Garg A. Pharmacokinetic and exposure-response analysis of pertuzumab in patients with HER2-positive metastatic gastric or gastroesophageal junction cancer. Cancer Chemother Pharmacol. 2019 Sep;84(3):539-550. doi: 10.1007/s00280-019-03871-w. Epub 2019 Jun 10.
• Tabernero J, Hoff PM, Shen L, Ohtsu A, Shah MA, Cheng K, Song C, Wu H, Eng-Wong J, Kim K, Kang YK. Pertuzumab plus trastuzumab and chemotherapy for HER2-positive metastatic gastric or gastro-oesophageal junction cancer (JACOB): final analysis of a double-blind, randomised, placebo-controlled phase 3 study. Lancet Oncol. 2018 Oct;19(10):1372-1384. doi: 10.1016/S1470-2045(18)30481-9. Epub 2018 Sep 11.

Drugs

Indications