Spots Global Cancer Trial Database for Phase I Study of SYD985 With Niraparib in Patients With Solid Tumors

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Trial Identification

Brief Title: Phase I Study of SYD985 With Niraparib in Patients With Solid Tumors

Official Title: A Two-part Phase I Study With the Antibody-drug Conjugate SYD985 in Combination With Niraparib to Evaluate Safety, Pharmacokinetics and Efficacy in Patients With HER2-expressing Locally Advanced or Metastatic Solid Tumors.

Study ID: NCT04235101

Conditions

Solid Tumor

Interventions

SYD985 + Niraparib

Study Description

Brief Summary: SYD985.004 is a two-part phase I study with the antibody-drug conjugate SYD985 in combination with niraparib aimed at evaluating safety, pharmacokinetics and efficacy in patients with HER2-expressing locally advanced or metastatic solid tumours.

Detailed Description: This is an open-label, single-arm study in which patients with HER2-expressing locally advanced or metastatic solid tumours will be treated with both an anti-body drug conjugate SYD985 and a Poly (ADP-ribose) Polymerase (PARP) inhibitor niraparib. SYD985 is an antibody-drug conjugate and consists of two parts. The antibody part binds to a protein that exists on different types of cancer cells (HER2 protein). When SYD985 binds to this protein, it will be taken up by the cancer cell. The second part of the drug, a toxin, will be cleaved in the cell and subsequently kills the cancer cell. Niraparib blocks the action of enzymes PARP-1 and PARP-2, which help to repair damaged DNA in cells when the cells divide to make new cells. By blocking PARP enzymes, the damaged DNA in cancer cells cannot be repaired, and, as a result, the cancer cells die. Part 1 includes patients with locally advanced or metastatic HER2-expressing solid tumours of any origin that showed progression on standard therapy or for whom no standard therapy exists. Patients will receive SYD985 infusions every three weeks in combination with niraparib until progression of the cancer or unacceptable toxicity develops. In this first part of the study, different doses of niraparib will be given for either 1, 2 or 3 weeks. Part 2 includes patients with advanced or metastatic breast, ovarian or endometrial cancer that showed progression on standard therapy or for whom no standard therapy exists. Patients will receive SYD985 infusions every three weeks in combination with niraparib until progression of the cancer or unacceptable toxicity develops.