A First-in-human of Multiplle Doses of BB-1705 in Subjects With Locally Advanced/Metastatic Solid Tumors

NCT ID: NCT05217693

Last Updated: 2025-07-24

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

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

288 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-06-01

Study Completion Date

2025-12-31

Brief Summary

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The study consists of two phases: dose-escalation (Phase I) and cohort expansion (Phase II).

Detailed Description

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Phase Ia is a dose escalation study to assess the safety and tolerability, and to determine the MTD or MAD and RP2D of BB-1705.

Phase Ib is a cohort expansion study to explore one or more RP2Ds to further assess safety, tolerability, pharmacokinetics, and preliminary anti-tumor activity. Patients with locally advanced and unresectable or metastatic solid tumors who have progressed on prior lines of standard of care therapies will be enrolled in this study if eligible.

Conditions

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Solid Tumor

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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dose escalation

Drug: BB-1705 BB-1705 will be administered as an intravenous infusion by Q3W for 8cycles

Group Type EXPERIMENTAL

BB-1705

Intervention Type DRUG

BB-1705 is an ADC consisting of an engineered humanized IgG1κ monoclonal antibody conjugated to the cytotoxic agent eribulin via a cathepsin-cleavable valine-citrulline linker. BB-1705 has a molecular weight of approximately 152 kDa, including two molecules of eribulin via the linker.

cohort expansion

BB-1705 will be administered as an intravenous infusion by Q3W for 8cycles

Group Type EXPERIMENTAL

BB-1705

Intervention Type DRUG

BB-1705 is an ADC consisting of an engineered humanized IgG1κ monoclonal antibody conjugated to the cytotoxic agent eribulin via a cathepsin-cleavable valine-citrulline linker. BB-1705 has a molecular weight of approximately 152 kDa, including two molecules of eribulin via the linker.

Interventions

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BB-1705

BB-1705 is an ADC consisting of an engineered humanized IgG1κ monoclonal antibody conjugated to the cytotoxic agent eribulin via a cathepsin-cleavable valine-citrulline linker. BB-1705 has a molecular weight of approximately 152 kDa, including two molecules of eribulin via the linker.

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

1. Willing and able to provide written informed consent form (ICF) for the trial.
2. Adult patients ≥ 18 years at the time of signing ICF.
3. Patient must have a histologically or cytologically confirmed, locally advanced, unresectable, or metastatic solid tumors:
4. At least one measurable lesion as defined per RECIST Version 1.1.
5. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
6. Life expectancy ≥12 weeks.
7. Adequate organ function as indicated by the following laboratory values (had not received blood transfusion, EPO, G-CSF, or other medical support within the 14 days before the administration of BB-1705):
8. Women of childbearing potential and males with fertile female partner must be willing to use currently accepted reliable contraception method throughout the treatment period from ICF signed and for at least 6 months following the last dose of BB-1705. These measures include, but are not limited to, oral or implantable injections of hormonal contraceptives; intrauterine birth control ring or placement of IUS intrauterine device); or use of barrier methods such as condoms or septum and spermicide products. Postmenopausal women over 50 years of age must have been amenorrheic for at least 12 months to be considered of non-childbearing potential. Women of childbearing potential must have a negative pregnancy test ≤ 7 days prior to the first dose of investigational product.

Exclusion Criteria

1. Receiving cancer therapy (chemotherapy or other systemic anti-cancer therapies, immunotherapy, radiation therapy, or surgery) at the time of enrollment
2. Prior history of other malignancies.
3. Not recovered to baseline or ≤ grade 1 adverse events from prior anti-cancer treatment.
4. Major surgery within 4 weeks and minor surgery within 2 weeks before the first dose or not fully recovered from surgery; or surgery planned during the time the patient is expected to participate in the study
5. Grade 2 or higher peripheral neuropathy.
6. Active pneumonitis/interstitial lung disease (ILD), a history of pneumonitis/ILD that required systemic steroids, received radiotherapy to lung field within 12 months before the first dose of study intervention, or current clinically relevant-lung disease
7. Symptomatic or untreated CNS metastases, or those requiring ongoing treatment for CNS metastases, including steroids (\>10 mg of prednisone or 4 mg of dexamethasone) and antiepileptic agents.
8. Any other serious ongoing underlying medical conditions, including but not limited to, uncontrolled diabetes mellitus, active uncontrolled infection, vaccination within 4 weeks, active gastric ulcer, uncontrolled seizures, cerebrovascular incidents within 6 months of study entry, gastrointestinal bleeding within 3 months of study entry, severe signs and symptoms of coagulation and clotting disorders.
9. QTc interval ≥450 ms for male or ≥470 ms for female (Fridericia's formula) and patients with congenital long QT syndrome.
Minimum Eligible Age

18 Years

Maximum Eligible Age

78 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Bliss Biopharmaceutical (Hangzhou) Co., Ltd

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Beijing Cancer Hospital

Beijing, , China

Site Status RECRUITING

Hunan Cancer Hospital

Changsha, , China

Site Status RECRUITING

First affiliated hospital of Gannan medical university

Ganzhou, , China

Site Status RECRUITING

Bliss Biopharmaceutical Co, Ltd

Hangzhou, , China

Site Status RECRUITING

Zhejiang University School of Medicine - The First Affiliated Hospital

Hanzhou, , China

Site Status RECRUITING

Linyi Cancer Hospital

Linyi, , China

Site Status RECRUITING

Jiangsu Province Hospital

Nanjing, , China

Site Status RECRUITING

Countries

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China

Facility Contacts

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SHEN LIN

Role: primary

13911219511

LIN JINGUAN

Role: primary

13307318568

SHI HUAQIU

Role: primary

13576666365

Tang Huoling

Role: primary

17301835287

ZHENG YULONG

Role: primary

13588166206

SHI JIANGHUA

Role: primary

15963998868

GUAN XIANGXIAN

Role: primary

13512510329

Other Identifiers

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BB-1705-101

Identifier Type: -

Identifier Source: org_study_id

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