Undifferentiated Pleomorphic Sarcoma Clinical Trial
Official title:
A Single-arm, Single-center Prospective Study of Anlotinib Hydrochloride and Toripalimab in Subjects With Unresectable or Metastatic Undifferentiated Pleomorphic Sarcoma Patients
The investigators hypothesize that combination anlotinib with toripalimab will improve progression-free survival relative to historical controls in patients with Unresectable or Metastatic Undifferentiated Pleomorphic Sarcoma.
This is a single-institution, open-label, single-arm Phase II study to determine the efficacy
and safety of anlotinib in combination with Toripalimab compared with historical controls as
first-line treatment in patients with Unresectable or Metastatic Undifferentiated Pleomorphic
Sarcoma.
Since the primary endpoint is survival outcome, progression-free survival (PFS) sample size
calculation is based on a single-arm survival design. The investigators will employ early
stopping rules for lack of efficacy, based on previously reported historical controls
progression-free rate at 3 months was 57% in MFH and This study predicts that as the
First-Line treatment of Undifferentiated Pleomorphic Sarcoma, progression-free rate at 3
months is expected to reach more than 80%.
Patients will be treated with once a day dosing of anlotinib alone for the first 7 days,
followed by concurrent anlotinib administered once a day at 12mg orally (PO), plus
intravenous administration of toripalimab every 21 days. Patients will be assessed every six
weeks for toxicity. After the first five patients are enrolled, the investigators will assess
safety of the combination. If 2 or fewer patients exhibit dose-limiting toxicity (DLT), the
investigators will then proceed with intrapatient titration of anlotinib dosing at each cycle
based on the presence or absence of predefined toxicities.
Correlative studies characterizing T-cells in tumor tissue and in peripheral blood will be
performed at three timepoints: 1. pre-treatment, 2. on-treatment on cycle 3 day 1, and 3.
off-study. Additional exploratory imaging investigations, and assessment of circulating tumor
cells are included for all patients.
Trial therapy will last until withdrawal of consent, disease progression and/or unacceptable
toxicity, whichever occurs first.
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