Pembrolizumab, Lenvatinib and IL-15 Superagonist N-803 in Combination With HER2 Targeting Autologous Dendritic Cell (AdHER2DC) Vaccine in Participants With Advanced or Metastatic Endometrial Cancer

Summary

Background: Endometrial cancer (EC) of the uterus is becoming more common in the US. Sometimes EC often has increased levels of a protein called HER2. Cancers with HER2 tend to be more aggressive and have poorer outcomes. Objective: To test 2 study drugs-a vaccine that targets HER2 (AdHER2DC) plus a drug that supercharges immune cells that kill tumor cells (N-803)-combined with 2 FDA-approved cancer treatment drugs in people with EC. Eligibility: Adults aged 18 and older with HER2-positive EC that returned or got worse after treatment. Design: AdHER2DC vaccine is made from each participant s own blood. Participants will undergo apheresis: Blood is removed from the body through a tube attached to a needle. The blood passes through a machine that separates out the target cells. The remaining blood is returned to the body through a second needle. A special catheter may be needed. The first treatment cycle is 28 days; each cycle after that will be 21 days. All participants will get the 2 approved drugs and the vaccine. One drug is a tablet taken by mouth once a day, every day. The other drug is given through a tube attached to a needle inserted into a vein. The vaccine is injected under the skin. Participants will receive the vaccine on day 1 of cycles 1, 2, and 3. Additional doses up to 3 doses will be give if possible. Some participants will receive N-803. This drug is injected under the skin of the abdomen on day 1 of each cycle. Treatment may last up to 1 year. Follow-up visits will continue up to 2 more years.

Timeline

Start

2024-05-14

Primary completion

2026-12-31

Completion

2028-12-31

Publications

• Background Konecny GE, Santos L, Winterhoff B, Hatmal M, Keeney GL, Mariani A, Jones M, Neuper C, Thomas B, Muderspach L, Riehle D, Wang HJ, Dowdy S, Podratz KC, Press MF. HER2 gene amplification and EGFR expression in a large cohort of surgically staged patients with nonendometrioid (type II) endometrial cancer. Br J Cancer. 2009 Jan 13;100(1):89-95. doi: 10.1038/sj.bjc.6604814. Epub 2008 Dec 16.
• Background Makker V, Colombo N, Casado Herraez A, Santin AD, Colomba E, Miller DS, Fujiwara K, Pignata S, Baron-Hay S, Ray-Coquard I, Shapira-Frommer R, Ushijima K, Sakata J, Yonemori K, Kim YM, Guerra EM, Sanli UA, McCormack MM, Smith AD, Keefe S, Bird S, Dutta L, Orlowski RJ, Lorusso D; Study 309-KEYNOTE-775 Investigators. Lenvatinib plus Pembrolizumab for Advanced Endometrial Cancer. N Engl J Med. 2022 Feb 3;386(5):437-448. doi: 10.1056/NEJMoa2108330. Epub 2022 Jan 19.
• Background Constantine GD, Kessler G, Graham S, Goldstein SR. Increased Incidence of Endometrial Cancer Following the Women's Health Initiative: An Assessment of Risk Factors. J Womens Health (Larchmt). 2019 Feb;28(2):237-243. doi: 10.1089/jwh.2018.6956. Epub 2018 Nov 28.

Drugs

Indications