Safety and Efficacy of HCB101 in Combination With Multiple Agents in Patients With Advanced Solid Tumors

NCT ID: NCT06771622

Last Updated: 2026-02-04

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

PHASE1/PHASE2

Total Enrollment

500 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-03-13

Study Completion Date

2029-01-01

Brief Summary

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This is a non-randomized, open-label, dose-escalation, and dose-expansion Phase Ib/IIa study to evaluate the safety, tolerability, PK, PD, and preliminary antitumor activity of HCB101 administered in combination with standard or approved anticancer therapies in subjects with advanced solid tumors. The trial includes a Part-I (Phase Ib) of the dose-escalation phase and a Part-II (Phase IIa) of the dose-expansion phase.

Part-I: Dose-escalation phase (Phase Ib):

Part I uses a standard 3+3 dose-escalation design to characterize safety and tolerability and to determine the maximum tolerated dose (MTD) and/or recommended Phase II dose (RP2D) of HCB101 when administered in combination regimens. The study includes 14 planned cohorts (Cohorts 1-9, including sub-cohorts 3a-3d and 6a-6c).

Part-II: Dose-expansion phase (Phase IIa) Based on safety, tolerability, PK/PD, and emerging antitumor activity observed in Part-I (Phase Ib), selected dose levels, tumor types, and combination regimens will be further investigated in Part-II (Phase IIa).

Detailed Description

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Conditions

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Solid Cancer

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Cohort 3a: HCB101 + Bevacizumab + FOLFIRI/ mFOLFOX6

HCB101: QW Bevacizumab 5 mg/kg IV on D1, Q2W

FOLFIRI:

Irinotecan 180 mg/m2 IV on D1, Q2W Leucovorin 400 mg/m2 IV on D1, Q2W 5-FU 400 mg/m2 IV on D1, then 1200 mg/m2/day on D2 and D3 (total 2400 mg/m2), Q2W

mFOLFOX6: Oxaliplatin 85 mg/m2 IV on D1, Q2W Leucovorin 400 mg/m2 IV on D1, Q2W 5-FU 400 mg/m2 IV on D1, then 1200 mg/m2/day on D2 and D3 (total 2400 mg/m2), Q2W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Oxaliplatin

Intervention Type DRUG

130 mg/m2 IV on Day 1, cycled every 21 days

Bevacizumab

Intervention Type DRUG

5 mg/kg IV on Day 1, Repeat every 2 weeks;

Irinotecan

Intervention Type DRUG

180 mg/m2 IV over 30-90 minutes on Day 1 every 2 weeks

Leucovorin

Intervention Type DRUG

400 mg/m2 IV on Day 1 every 2 weeks

5-FU

Intervention Type DRUG

400 mg/ m2 IV bolus on Day 1, followed by 1200 mg/m2/day x 2 days (total 2400 mg/m2 over 46-48 hours) IV continuous infusion Repeat every 2 weeks

Pembrolizumab

Intervention Type DRUG

200 mg IV day 1; given every 21 days

Cohort 1: HCB101+Trastuzumab+Pertuzumab+CAPEOX

HCB101: QW Trastuzumab: 8 mg/kg IV loading dose on Day 1 of cycle 1, then 6 mg/kg IV every 21 days; Pertuzumab: 840 mg IV on Day 1, cycled every 21 days; Oxaliplatin: 130 mg/m2 IV on Day 1, cycled every 21 days; Capecitabine: 1000 mg/m2 PO BID on Days 1-14, cycled every 21 days;

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Trastuzumab

Intervention Type DRUG

8 mg/kg IV loading dose on Day 1 of cycle 1, then 6 mg/kg IV every 21 days;

Pertuzumab

Intervention Type DRUG

840 mg IV on Day 1, cycled every 21 days;

Oxaliplatin

Intervention Type DRUG

130 mg/m2 IV on Day 1, cycled every 21 days

Capecitabine

Intervention Type DRUG

1000 mg/m2 PO BID on Days 1-14, Cycled every 21 days

Cohort 2: HCB101+Ramucirumab+Paclitaxel

HCB101: QW Ramucirumab: 8 mg/kg IV on Days 1 and 15, cycled every 28 days; Paclitaxel: 80 mg/m2 IV on Days 1, 8, and 15, cycled every 28 days;

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Ramucirumab

Intervention Type DRUG

8 mg/kg IV on Days 1 and 15, Cycled every 28 days

Paclitaxel

Intervention Type DRUG

80 mg/m2 IV on Days 1, 8, and 15, Cycled every 28 days

Cohort 3b: HCB101 + Cetuximab + FOLFIRI/ mFOLFOX6

HCB101: QW Cetuximab 400 mg/m2 IV on D1, then 250 mg/m2, weekly

FOLFIRI:

Irinotecan 180 mg/m2 IV on D1, Q2W Leucovorin 400 mg/m2 IV on D1, Q2W 5-FU 400 mg/m2 IV on D1, then 1200 mg/m2/day on D2 and D3 (total 2400 mg/m2), Q2W

mFOLFOX6: Oxaliplatin 85 mg/m2 IV on D1, Q2W Leucovorin 400 mg/m2 IV on D1, Q2W 5-FU 400 mg/m2 IV on D1, then 1200 mg/m2/day on D2 and D3 (total 2400 mg/m2), Q2W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Oxaliplatin

Intervention Type DRUG

130 mg/m2 IV on Day 1, cycled every 21 days

Cetuximab

Intervention Type DRUG

400 mg/m2 first infusion, followed by 250 mg/m2 IV weekly;

Irinotecan

Intervention Type DRUG

180 mg/m2 IV over 30-90 minutes on Day 1 every 2 weeks

Leucovorin

Intervention Type DRUG

400 mg/m2 IV on Day 1 every 2 weeks

5-FU

Intervention Type DRUG

400 mg/ m2 IV bolus on Day 1, followed by 1200 mg/m2/day x 2 days (total 2400 mg/m2 over 46-48 hours) IV continuous infusion Repeat every 2 weeks

Cohort 3c: HCB101 + Ramucirumab + FOLFIRI

HCB101: QW Ramucirumab 8 mg/kg IV on D1 and 15, Q4W

FOLFIRI:

Irinotecan 180 mg/m2 IV on D1, Q2W Leucovorin 400 mg/m2 IV on D1, Q2W 5-FU 400 mg/m2 IV on D1, then 1200 mg/m2/day on D2 and D3 (total 2400 mg/m2), Q2W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Ramucirumab

Intervention Type DRUG

8 mg/kg IV on Days 1 and 15, Cycled every 28 days

Irinotecan

Intervention Type DRUG

180 mg/m2 IV over 30-90 minutes on Day 1 every 2 weeks

Leucovorin

Intervention Type DRUG

400 mg/m2 IV on Day 1 every 2 weeks

5-FU

Intervention Type DRUG

400 mg/ m2 IV bolus on Day 1, followed by 1200 mg/m2/day x 2 days (total 2400 mg/m2 over 46-48 hours) IV continuous infusion Repeat every 2 weeks

Cohort 3d: HCB101 + mFOLFOX6

HCB101: QW

mFOLFOX6: Oxaliplatin 85 mg/m2 IV on D1, Q2W Leucovorin 400 mg/m2 IV on D1, Q2W 5-FU 400 mg/m2 IV on D1, then 1200 mg/m2/day on D2 and D3 (total 2400 mg/m2), Q2W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Oxaliplatin

Intervention Type DRUG

130 mg/m2 IV on Day 1, cycled every 21 days

Leucovorin

Intervention Type DRUG

400 mg/m2 IV on Day 1 every 2 weeks

5-FU

Intervention Type DRUG

400 mg/ m2 IV bolus on Day 1, followed by 1200 mg/m2/day x 2 days (total 2400 mg/m2 over 46-48 hours) IV continuous infusion Repeat every 2 weeks

Cohort 4: HCB101 + Pembrolizumab/Toripalimab + albumin-bound paclitaxel

HCB101, QW Pembrolizumab 200 mg IV on D1, Q3W or Toripalimab 240 mg IV on D1, Q3W Albumin-bound paclitaxel 100 mg/m2 on D1, 8, 15, Q4W or 125 mg/m2 IV on D1, D8, Q3W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Toripalimab

Intervention Type DRUG

240 mg/kg IV on Day 1 Cycled every 21 days

Albumin-bound paclitaxel

Intervention Type DRUG

125 mg/m2 IV on day 1 and Day 8 Cycled every 21 days

Pembrolizumab

Intervention Type DRUG

200 mg IV day 1; given every 21 days

Cohort 5: HCB101 + Pembrolizumab + CAPEOX

HCB101, QW Pembrolizumab 200 mg IV on D1, Q3W Oxaliplatin 130 mg/m2 IV on D1, Q3W Capecitabine 1000 mg/m2 PO BID on D1-14, Q3W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Oxaliplatin

Intervention Type DRUG

130 mg/m2 IV on Day 1, cycled every 21 days

Capecitabine

Intervention Type DRUG

1000 mg/m2 PO BID on Days 1-14, Cycled every 21 days

Pembrolizumab

Intervention Type DRUG

200 mg IV day 1; given every 21 days

Cohort 6a: HCB101 + Pembrolizumab

HCB101, QW Pembrolizumab 200 mg IV on D1, Q3W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Pembrolizumab

Intervention Type DRUG

200 mg IV day 1; given every 21 days

Cohort 6b: HCB101 + Pembrolizumab + Cetuximab

HCB101, QW Pembrolizumab 200 mg IV on D1, Q3W Cetuximab 400 mg/m2 IV on D1, then 250 mg/m2, QW

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Cetuximab

Intervention Type DRUG

400 mg/m2 first infusion, followed by 250 mg/m2 IV weekly;

Pembrolizumab

Intervention Type DRUG

200 mg IV day 1; given every 21 days

Cohort 6c: HCB101 + Cetuximab

HCB101, QW Cetuximab 400 mg/m2 IV on D1, then 250 mg/m2, QW

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Cetuximab

Intervention Type DRUG

400 mg/m2 first infusion, followed by 250 mg/m2 IV weekly;

Cohort 7: HCB101 + Trastuzumab Deruxtecan

HCB101, QW Trastuzumab Deruxtecan 5.4 mg/kg IV on D1, Q3W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Trastuzumab deruxtecan

Intervention Type DRUG

5.4 mg/kg IV on D1, Q3W

Cohort 8: HCB101 + Atezolizumab/Toripalimab + Bevacizumab

HCB101, QW Atezolizumab 1200 mg IV on D1, Q3W or Toripalimab 240 mg IV on D1, Q3W Bevacizumab 15 mg/kg IV on D1, Q3W

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Bevacizumab

Intervention Type DRUG

5 mg/kg IV on Day 1, Repeat every 2 weeks;

Toripalimab

Intervention Type DRUG

240 mg/kg IV on Day 1 Cycled every 21 days

Atezolizumab

Intervention Type DRUG

1200 mg IV on D1, Q3W

Cohort 9: HCB101 + Atezolizumab/Toripalimab + carboplatin + etoposide.

HCB101, QW Atezolizumab 1200 mg IV on D1, Q3W or Toripalimab 240 mg IV on D1, Q3W Carboplatin AUC=5, IV on D1, Q3W for 4 cycles Etoposide 100mg/m2, IV on D1, 2, 3, Q3W for 4 cycles

Group Type EXPERIMENTAL

HCB101

Intervention Type DRUG

QW

Toripalimab

Intervention Type DRUG

240 mg/kg IV on Day 1 Cycled every 21 days

Carboplatin (AUC 5)

Intervention Type DRUG

AUC=5, IV on D1, Q3W for 4\~6 cycles

Etoposide

Intervention Type DRUG

100mg/m2, IV on D1, 2, 3, Q3W for 4\~6 cycles

Atezolizumab

Intervention Type DRUG

1200 mg IV on D1, Q3W

Interventions

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HCB101

QW

Intervention Type DRUG

Trastuzumab

8 mg/kg IV loading dose on Day 1 of cycle 1, then 6 mg/kg IV every 21 days;

Intervention Type DRUG

Pertuzumab

840 mg IV on Day 1, cycled every 21 days;

Intervention Type DRUG

Oxaliplatin

130 mg/m2 IV on Day 1, cycled every 21 days

Intervention Type DRUG

Capecitabine

1000 mg/m2 PO BID on Days 1-14, Cycled every 21 days

Intervention Type DRUG

Ramucirumab

8 mg/kg IV on Days 1 and 15, Cycled every 28 days

Intervention Type DRUG

Paclitaxel

80 mg/m2 IV on Days 1, 8, and 15, Cycled every 28 days

Intervention Type DRUG

Bevacizumab

5 mg/kg IV on Day 1, Repeat every 2 weeks;

Intervention Type DRUG

Cetuximab

400 mg/m2 first infusion, followed by 250 mg/m2 IV weekly;

Intervention Type DRUG

Irinotecan

180 mg/m2 IV over 30-90 minutes on Day 1 every 2 weeks

Intervention Type DRUG

Leucovorin

400 mg/m2 IV on Day 1 every 2 weeks

Intervention Type DRUG

5-FU

400 mg/ m2 IV bolus on Day 1, followed by 1200 mg/m2/day x 2 days (total 2400 mg/m2 over 46-48 hours) IV continuous infusion Repeat every 2 weeks

Intervention Type DRUG

Toripalimab

240 mg/kg IV on Day 1 Cycled every 21 days

Intervention Type DRUG

Albumin-bound paclitaxel

125 mg/m2 IV on day 1 and Day 8 Cycled every 21 days

Intervention Type DRUG

Pembrolizumab

200 mg IV day 1; given every 21 days

Intervention Type DRUG

Carboplatin (AUC 5)

AUC=5, IV on D1, Q3W for 4\~6 cycles

Intervention Type DRUG

Etoposide

100mg/m2, IV on D1, 2, 3, Q3W for 4\~6 cycles

Intervention Type DRUG

Atezolizumab

1200 mg IV on D1, Q3W

Intervention Type DRUG

Trastuzumab deruxtecan

5.4 mg/kg IV on D1, Q3W

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Subjects are able to understand and willing to provide signed informed consent.
2. Male and female subjects of ≥18 years of age, inclusive, at the time of signing the informed consent.
3. With histologically/cytologically confirmed diagnosis of advanced solid tumors as described below:

1\) Cohort 1- Gastric Cancer, HER-Positive (First-Line): 2) Cohort 2 - Gastric Cancer (Second-Line): 3) Cohort 3 - Colorectal Cancer (Second-Line): 4) Cohort 4 - Triple-Negative Breast Cancer (First-Line): 5) Cohort 5 - Gastric Cancer, HER2 Medium/Low/Negative (First-Line): 6) Cohort 6 - Head and Neck Squamous Cell Carcinoma: 7) Cohort 7 - Ovarian Cancer: 8) Cohort 8 - Hepatocellular Carcinoma: 9) Cohort 9 - Extensive-Stage Small Cell Lung Cancer: 4. Have adequate organ function, as indicated by the following laboratory parameters below (had not received a blood transfusion, apheresis infusion, erythropoietin, granulocyte colony-stimulating factor, and other relevant medical support within 14 days before the administration of the first dose of study intervention).

Exclusion Criteria

1. With a known history of hypersensitivity to any components of the study intervention.
2. Prior/Concomitant Therapy/Treatment:

1. Subjects who have undergone major surgery or radical radiotherapy within 28 days before the first dose of study intervention.
2. Subjects who have received systemic antitumor therapies within the following washout periods prior to the first dose of study intervention:

* 28 days for curative radiotherapy, immunotherapy, or targeted therapy, etc.
* 14 days for chemotherapy, palliative radiotherapy, endocrine therapy, or herbal medicine or traditional therapies with known or claimed antitumor activity.
3. Subjects who have used a radioactive drug (Strontium, Samarium, etc.) within 56 days before the first dose of the study intervention.
4. Subjects who are active using of vitamin K antagonist anticoagulant like warfarin. Use of low molecular weight heparin and factor Xa inhibitors will be permitted on a case-by-case basis. Daily low dose of aspirin use (≤ 100 mg QD in Mainland China; ≤ 81 mg QD in the United States) is allowed.
5. Subjects who have received any treatment targeting the CD47 or SIRPα pathway.
6. Subjects who have received or plan to receive live virus or bacterial vaccine within 28 days before the first dose of study intervention while the subject receives the study intervention.
3. Participation in another clinical study with an investigational product administered or investigational device used in the last 28 days (If half-life is not clear) or 5 half-lives (If half-life is clear, the longer time one prevails) before receiving the first dose of study intervention.
4. Subjects who have received any treatment targeting the CD47 or SIRPα pathway.
5. An uncontrolled acute infection.
6. Known to have a history of alcoholism or drug abuse.
7. Any other medical (e.g., Child-Pugh class B or C, pulmonary, metabolic, congenital, endocrinal or CNS disease, etc.), psychiatric, or social condition deemed by the Investigator to be likely to interfere with a subject's rights, safety, welfare or ability to sign informed consent, cooperate and participate in the study, or interfere with the interpretation of the results.
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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FBD Biologics Limited

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Cancer Hospital of Shandong First Medical University

Jinan, Shandong, China

Site Status

Countries

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China

Other Identifiers

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HCB101-201

Identifier Type: -

Identifier Source: org_study_id

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