A Study of Surufatinib in Combination With Gemcitabine in Pediatric, Adolescent, and Young Adult Patients With Recurrent or Refractory Solid Tumors

An Open-Label, Multicenter Phase 1/2 Study of Surufatinib in Combination With Gemcitabine in Pediatric, Adolescent, and Young Adult Patients With Recurrent or Refractory Solid Tumors

The purpose of this study is to evaluate the safety and tolerability of surufatinib, thereby identifying the Maximum Tolerated Dose (MTD) and/or Recommended Phase 2 Dose (RP2D) of surufatinib administered in combination with gemcitabine in pediatric patients with recurrent or refractory solid tumors or lymphoma. The study will be conducted in 2 parts.

Study Overview

• Status: Completed
• Conditions: Lymphoma; Osteosarcoma; Solid Tumor; Ewing Sarcoma; Rhabdomyosarcoma; Non-rhabdomyosarcoma Soft Tissue Sarcoma
• Intervention / Treatment: Drug: Surufatinib in combination with Gemcitabine

Detailed Description

The purpose of this study is to evaluate the safety and tolerability of surufatinib, thereby identifying the Maximum Tolerated Dose (MTD) and/or Recommended Phase 2 Dose (RP2D) of surufatinib administered in combination with gemcitabine in pediatric patients with recurrent or refractory solid tumors or lymphoma. The study will be conducted in 2 parts:

Part 1 - evaluation of tolerability and safety of surufatinib administered in combination with gemcitabine, and confirmation of the recommended clinical dose of surufatinib in pediatric patients with recurrent or refractory solid tumors or lymphoma.

Part 2 - evaluation of anti-tumor activity and confirmation of tolerability of surufatinib administered in combination with gemcitabine in pediatric patients with recurrent or refractory osteosarcoma, Ewing sarcoma, RMS, and non-RMS.

Part 1 will enroll 2 to 6 patients per dose level cohort (up to 4 cohorts) with recurrent or refractory solid tumors. During cycle 1, surufatinib will be administered, orally, once daily (QD), as a single agent for 14 days followed by surufatinib daily in combination with gemcitabine intravenously on days 15 and 22 (cycle 1 duration=35 days) and days 1 and 8 of all subsequent cycles (cycle duration=21 days). Assessment based on dose limiting toxicity (DLT) criteria will be performed in the first 35-day cycle (DLT Evaluation Period). This study will utilize a rolling 6 design for part 1, with 3 dose escalation levels and 1 de escalation level, if needed.

Part 2 of the study will use a Simon 2-stage design with a maximum of 18 patients per cohort (osteosarcoma, Ewing sarcoma, RMS, and non-RMS). Surufatinib will be administered orally at identified MTD/RP2D daily in combination with gemcitabine (1000 mg/m2 weekly × 2 doses) intravenously on days 1 and 8.

In both parts 1 and 2, patients can remain on treatment until completing cycle 17, or until progressive disease, unacceptable toxicity, or death; whichever comes first.

• Study Type: Interventional
• Enrollment (Actual): 13
• Phase: Phase 2; Phase 1

Expanded Access

No longer available outside the clinical trial. See expanded access record.

Contacts and Locations

• Study Contact: Name: Nicholas Lawn; Phone Number: +1 973.826.2891; Email: nickl@hutch-med.com
• Study Contact Backup: Name: John Kauh; Phone Number: +1 .973.306.4490; Email: johnk@HUTCH-MED.com

Study Locations

• United States
  • Alabama
    • Birmingham, Alabama, United States, 35233
      • Children's Hospital of Alabama
  • California
    • Orange, California, United States, 92868
      • Childrens Hospital Orange County
  • District of Columbia
    • Washington, District of Columbia, United States, 20010
      • Children's National Hospital
  • Indiana
    • Indianapolis, Indiana, United States, 46202
      • Riley Hospital for Children
  • Maryland
    • Baltimore, Maryland, United States, 21287
      • Johns Hopkins University
  • Missouri
    • Saint Louis, Missouri, United States, 63110
      • Washington University School of Medicine
  • Ohio
    • Cincinnati, Ohio, United States, 45229
      • Cincinnati Children's Hospital Medical Center
  • Pennsylvania
    • Philadelphia, Pennsylvania, United States, 19104
      • Children's Hospital of Philadelphia
    • Pittsburgh, Pennsylvania, United States, 15224
      • UPMC Children's Hospital of Pittsburgh
  • Texas
    • Dallas, Texas, United States, 75390
      • The University of Texas Southwestern Medical Center
  • Washington
    • Seattle, Washington, United States, 98105
      • Seattle Children's Hospital

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 2 years to 21 years (Child, Adult)
• Accepts Healthy Volunteers: No

Description

Inclusion Criteria:

1. Age: At time of study enrollment, patients must be

   1. Part 1 (including PK expansion cohort): ≥2 and ≤21 years of age;
   2. Part 2: ≥2 and ≤21 years of age;
   3. Patients with osteosarcoma can enroll up to <30 years old.

2. Diagnosis:

   1. Part 1 - Patients with any recurrent or refractory solid tumors or lymphoma (not central nervous system [CNS]) that have a known or expected dysfunction of VEGFR 1, -2, and -3; FGFR-1, or CSF-1R pathways (based on literature) are eligible. Patients must have had histologic verification of malignancy at original diagnosis or relapse.
   2. Part 2 - Recurrent or refractory osteosarcoma (US and EU), Ewing sarcoma (US and EU), RMS (US and EU), or NRSTS (EU only). Patients must have had histologic verification of malignancy at original diagnosis or relapse.
3. Disease status: Patients must have measureable or evaluable disease for part 1 dose escalation; for part 2, patients must have measurable disease by RECIST version 1.1.
4. Therapeutic options: Patient's current disease state must be one for which there is no known curative therapy.
5. Performance level: Karnofsky ≥50 for patients ≥16 and <18 years of age and Lansky ≥50 for patients <16 years of age, Eastern Cooperative Oncology Group (ECOG) ≤2 for patients ≥18 years of age.
6. Adequate organ and bone marrow function as defined in the current protocol.
7. Adequate cardiac function as indicated as defined in the current protocol.
8. Patients with known bone marrow metastatic disease will be eligible for the study provided they meet the blood counts in the inclusion criteria as defined in the current protocol.
9. Adequate BP control which is defined as a BP <95th percentile (≤ grade 1) for age, height, and sex.
10. Informed consent: Provision of signed and dated written informed consent (parent/legal guardian if patient <18 years of age) and assent (from patients aged >7 years) prior to any study-specific procedures, sampling, and analyses.
11. Patient must meet all defined Inclusion criteria as defined in the current protocol.

Exclusion Criteria:

1. Patient must not meet any exclusion criteria as defined in the current protocol.
2. Pregnant, breast feeding or planning on becoming pregnant.
3. Patients is taking and prohibitive concomitant medications as outlined in the current protocol.
4. Patients have an uncontrolled infection.
5. Patients has had major surgery or significant traumatic injury within 28 days of the first dose.
6. Brain metastases and/or spinal cord compression untreated with surgery and/or radiotherapy and without clinical imaging evidence of SD for 14 days or longer.
7. History of allergies to Surufatinib and/or Gemcitabine.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Sequential Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Part 1- Dose escalation; Dose escalation study with sequential dose escalation of surufatinib in combination with gemcitabine. Patients with any recurrent or refractory solid tumors or lymphoma, who have a known or expected dysfunction of VEGFR-1, -2, and -3; FGFR-1; or CSF-1R pathways may be enrolled.	Drug: Surufatinib in combination with Gemcitabine; Surufatinib in combination with Gemcitabine; Other Names: HMPL-012, sulfatinib in combination with Gemcitabine
Experimental: Part 2 - Dose expansion; Once the MTD/RP2D has been determined in the part 1 portion of the study, the part 2 disease specific cohorts for patients with refractory or recurrent osteosarcoma, Ewing Sarcoma, and RMS and non- RMS will open for enrollment.	Drug: Surufatinib in combination with Gemcitabine; Surufatinib in combination with Gemcitabine; Other Names: HMPL-012, sulfatinib in combination with Gemcitabine

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Part 1: Number of patients with Dose-Limiting Toxicity (DLT) at each dose level studied.	To determine maximum tolerated dose of surufatinib in combination with gemcitabine	up to 90 days
Part 1: Number of patients with treatment-emergent adverse events as assessed by CTCAE v5.0	To determine the safety and tolerability of surufatinib in combinations with gemcitabine	up to 4 years
Part 2: To study the rate of patients who have achieved Complete Response (CR) or Partial Response (PR) in pediatric patients with Ewing sarcoma, Rhabdomyosarcoma (RMS), or Non-RMS (NRSTS) treated with the combination of surufatinib and gemcitabine.	The rate of patients who have achieved CR or PR will be reported.	up to 4 years
Part 2: To study the Time to Response (TTR) of the combination of surufatinib and gemcitabine in pediatric patients with Ewing sarcoma, RMS, or NRSTS.	The time to CR or PR will be reported.	up to 4 years
Part 2: To study the duration of response (DoR) of the combination of surufatinib and gemcitabine in pediatric patients with Ewing sarcoma, RMS, or NRSTS.	The duration of CR or PR will be reported.	up to 4 years
Part 2: To study the progression-free survival (PFS) of the combination of surufatinib and gemcitabine in pediatric patients with Ewing sarcoma, RMS, or NRSTS.	The time from enrollment in the clinical trial to disease progression or death will be reported.	up to 4 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
To evaluate number of patients with treatment-emergent adverse events as assessed	To evaluate the safety in the pediatric patient population when treated with the combination of surufatinib and gemcitabine	up to 4 years

Collaborators and Investigators

• Sponsor: Hutchmed
• Investigators: Principal Investigator: Josephine Haduong, Children's Hospital of Orange County

Study record dates

Study Major Dates

• Study Start (Actual): November 30, 2021
• Primary Completion (Actual): April 25, 2023
• Study Completion (Actual): April 25, 2023

Study Registration Dates

• First Submitted: September 20, 2021
• First Submitted That Met QC Criteria: October 13, 2021
• First Posted (Actual): October 26, 2021

Study Record Updates

• Last Update Posted (Estimated): February 9, 2024
• Last Update Submitted That Met QC Criteria: February 8, 2024
• Last Verified: February 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Neoplasms, Connective and Soft Tissue; Neoplasms by Histologic Type; Neoplasms; Neoplasms, Bone Tissue; Neoplasms, Connective Tissue; Neoplasms, Muscle Tissue; Myosarcoma; Sarcoma; Sarcoma, Ewing; Osteosarcoma; Rhabdomyosarcoma; Molecular Mechanisms of Pharmacological Action; Antimetabolites, Antineoplastic; Antimetabolites; Antineoplastic Agents; Gemcitabine
• Other Study ID Numbers: 2020-012-GLOB2

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: Yes
• Studies a U.S. FDA-regulated device product: No