CAMELLIA: Anti-CD47 Antibody Therapy in Haematological Malignancies

Study Overview
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Brief Summary
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This phase I trial studies the side effects and best dose of anti-cluster of differentiation (CD)47 monoclonal antibody Hu5F9-G4 in treating patients with haematological malignancies including acute myeloid leukemia that has returned after a period of improvement (relapsed) or has not responded to previous treatment (refractory), or high risk myelodysplastic syndrome. Monoclonal antibodies, such as anti-CD47 monoclonal antibody Hu5F9-G4, block cancer growth in different ways by targeting certain cells.

Official Title
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A Phase I Dose Escalation Trial of the Humanized Anti-CD47 Monoclonal Antibody Hu5F9-G4 in Haematological Malignancies (CAMELLIA)

Conditions
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Acute Myeloid Leukemia, Myelodysplastic Syndrome

Intervention / Treatment
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* Drug: Hu5F9-G4


Participation Criteria
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Eligibility Criteria
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Key Inclusion Criteria: Pathologically confirmed relapsed or refractory (primary refractory and relapsed refractory) Acute Myeloid Leukemia (AML) (defined by World Health Organization (WHO) criteria) for which no further conventional therapy is suitable for the patient, or confirmed myelodysplastic syndrome defined according to WHO classification, with an International Prognostic Scoring System (IPSS) risk category of intermediate-2 or high risk, that is relapsed, refractory or intolerant to conventional therapy within 3 weeks of registration. Male or female, Age ≥ 18 years. Eastern Cooperative Oncology Group (ECOG) performance score of 0-1 Willing to undergo blood transfusions as deemed clinically necessary. Adequate hematological, liver, and kidney function Key Exclusion Criteria: Females: Pregnant or breast-feeding women, or women of childbearing potential unless effective method of contraception is used during and for 3 months after the trial. Males: unless an effective method of contraception is used during and for 3 months after the trial. Any prior exposure to Hu5F9-G4 or other CD47 targeting agents. Treatment with any other investigational agent within 28 days prior to enrolment. Previous allogeneic stem cell transplant within 6 months prior to enrolment, active graft vs host disease (GVHD), or requiring transplant-related immunosuppression Evidence for active CNS involvement by leukaemia Clinical evidence or known history of cardiopulmonary disease

Ages Eligible for Study
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Minimum Age: 18 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Hu5F9-G4<br>Dose Escalation: CD47 blocking antibody Hu5F9-G4 | Drug: Hu5F9-G4<br> <br> |

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximum tolerated dose (MTD) of Hu5F9-G4, graded according to the National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) version 4.03 (Part A) | MTD is defined as the highest dosing schedule cohort level at which no more than 1 of 6 patients experience a Dose Limiting Toxicity (DLT). | Up to 28 days |