An Engineered Sirpα Fused to Anti-Pd-L1 And Tgf-β Fusion Protein (HCB301) in Subjects With Selected Advanced Tumors

Trial statusRecruiting
Trial phasePhase 1
Trial typeInterventional
Biological sexAll
Age18+
SponsorFBD Biologics Limited

About this trial

The purpose of this study is to find out whether IV injection of HCB301 is an effective treatment for different types of advanced solid tumors and relapsed and refractory classical Hodgkin lymphomas and what side effects (unwanted effects) may occur in subjects aged 18 years old and above.

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Able to understand and be willing to sign the ICF.

Male and female subjects of ≥18 years of age.

For subjects with advanced solid tumors - must have at least 1 measurable lesion as defined by Response Evaluation Criteria in Solid Tumors (RECIST) v1.1 at baseline.

For subjects with classical Hodgkin lymphoma - must have classical Hodgkin lymphoma that is measurable or assessable for response.

Disqualifiers

With known history of hypersensitivity to any components of HCB301.

Known active or untreated CNS metastases and/or carcinomatous meningitis.

Have undergone a major surgery or radical radiotherapy within 28 days or palliative radiotherapy within 14 days or have used a radioactive drug within 56 days prior to the first dose of HCB301.

Clinically significant cardiovascular condition.

Trial design

Design model

Sequential

Treatments tested in this trial

  • HCB301

    Drug

    HCB301 administered via. intravenous (IV) infusion.

Treatment groups

50 Participants
are divided into 7 treatment groups

7

Treatment groups

See each treatment group below.

Group A: Experimental: 0.3 mg/kg HCB301Experimental treatment 1 intervention
Group B: Experimental: 0.6 mg/kg HCB301Experimental treatment 1 intervention
Group C: Experimental: 1.2 mg/kg HCB301Experimental treatment 1 intervention
Group D: Experimental: 2.4 mg/kg HCB301Experimental treatment 1 intervention
Group E: Experimental: 4.8 mg/kg HCB301Experimental treatment 1 intervention
Group F: Experimental: 9.6 mg/kg HCB301Experimental treatment 1 intervention
Group G: Experimental: 15.0 mg/kg HCB301Experimental treatment 1 intervention

Trial outcomes

Primary outcomes

1

Number/incidence and percentage of subjects with adverse events, including ADA.

To evaluate the safety and tolerability of HCB301.

Time frame
12 months
2

Number of subjects with MTD and RDE of HCB301.

To determine the MTD and RDE.

Time frame
12 months

Secondary outcomes

1

Overall Rate Response (ORR)

ORR is defined as the proportion of participants who have a partial response (PR) or critical response (CR).

Time frame
12 months
2

Duration of Response (DoR)

DoR is defined as time from date of initial documentation of a response (PR or CR) to date of first documented evidence of progressive disease (PD).

Time frame
12 months
3

Disease Control Rate (DCR)

DCR is defined as the proportion of participants who have a partial response (PR), critical response (CR), or disease stable (SD).

Time frame
12 months
4

Progression-Free Survival (PFS)

Defined as the duration from the start of treatment until tumor progression or death of any cause.

Time frame
12 months

Other outcomes

1

CD47 receptor occupancy on circulating red blood cells (RBCs)

CD47 receptor occupancy on circulating red blood cells (RBCs) will be measured as an indication of target engagement.

Time frame
12 months
2

Concentration of potential PD biomarkers in participants will be assess.

Changes in CD47 receptor occupancy on circulating CD3+ T cells and TGFβ1, 2, 3 will be assessed after HCB301 treatment.

Time frame
12 months
3

ctDNA detection

ctDNA detection in participants using next-generation sequencing (NGS ).

Time frame
12 months

Sponsors and contacts

Click on the lead sponsor to view all of their trials.

FBD Biologics Limited

Lead sponsor

HanchorBio Inc.

Collaborator