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Advanced Malignant Solid TumorPhase 1/2NCT07126665

A Study of MHB088C Combined With MHB039A in Patients With Advanced Malignant Solid Tumors

A Phase 1/2 study testing MHB088C for Injection and MHB039A for Injection in people with Advanced Malignant Solid Tumor, run by Minghui Pharmaceutical (Hangzhou) Ltd at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

This is a first-in-human, open-label, multicenter Phase I/II study of MHB088C combined with MHB039A in patients with advanced malignant solid tumors. The study was designed to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary efficacy of MHB088C and MHB039A combination therapy. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Advanced Malignant Solid Tumor
What is being tested?
MHB088C for Injection and MHB039A for Injection
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
116 participants
Where
1 siteChina
Study dates
18 Sep 2025to Aug 2031
Phase
Phase 1/2
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Voluntarily agrees to participate in the study and signs the informed consent form.
  • Age ≥ 18 years, no restriction on gender.
  • Eastern Cooperative Oncology Group (ECOG) performance status of 0-1.
  • Estimated life expectancy ≥ 3 months.
  • For the dose escalation stage: Histologically or cytologically confirmed advanced solid tumors that are refractory to standard therapy, intolerant to standard therapy, or have no standard treatment options.
  • For the dose expansion stage: Histologically or cytologically confirmed locally advanced or metastatic advanced solid tumors, not suitable for radical surgery and/or radical concurrent/sequential radiotherapy and chemotherapy.
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  • At least one measurable lesion per RECIST v1.1 criteria.
  • Adequate bone marrow reserve and organ function.
  • Eligible participants of childbearing potential (males and females) must agree to take highly reliable contraceptive measures with their partners during the study and within at least 12 weeks after the last dose.

Who cannot join

  • History of ≥2 primary malignancies within 5 years prior to informed consent.
  • Received chemotherapy within 3 weeks, radiotherapy within 4 weeks, or biologic, endocrine, or immunotherapy within 4 weeks before dosing.
  • Medication of other unmarketed investigational drugs or therapies within 4 weeks before dosing.
  • Brain metastases, leptomeningeal disease, brainstem metastases, or spinal cord compression.
  • Underwent major organ surgery (excluding biopsy) or significant trauma within 4 weeks before the first dose of investigational drug or requiring elective surgery during the study.
  • Previous or concurrent gastrointestinal perforation, surgical procedures and wound healing complications, as well as bleeding events.
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  • Received intravenous thrombolysis treatment within 2 weeks, except for preventive anticoagulation and antiplatelet therapy.
  • Vaccinated within 4 weeks before dosing.
  • Treated with systemic corticosteroids within 14 days before dosing.
  • Severe lung disease affecting pulmonary function.
  • Active systemic infection requiring treatment within 7 days before dosing.
  • Uncontrolled third-space effusion.
  • Serious cardiovascular or cerebrovascular diseases.
  • Known hypersensitivity or delayed allergic reaction to the investigational product or its components.
  • Drug abuse or other medical/psychiatric condition that may interfere with study participation or results.
  • Known alcohol or drug dependence.
  • Pregnant or breastfeeding women, or individuals planning to conceive.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

China1 site, 1 recruiting
  • Ethics Committee of Shanghai East Hospital

    Shanghai, Shanghai Municipality, 201419

    Ethics Committee, +86 021-38804518-22198, siwei_bao@163.com

    Recruiting

Other trials in China

About this study

Official title: An Open-label Phase I/II Clinical Study of MHB088C for Injection Combined With MHB039A for Injection in Patients With Advanced Malignant Solid Tumors

This is a first-in-human, open-label, multicenter Phase I/II study of MHB088C combined with MHB039A in patients with advanced malignant solid tumors. The study was designed to evaluate the safety, tolerability, pharmacokinetics (PK), and preliminary efficacy of MHB088C and MHB039A combination therapy.

Read the detailed description

This first-in-human clinical trial of MHB088C and MHB039A combination therapy comprises two parts: a dose escalation phase and indication expansion phase. The dose escalation phase is an open-label, multicenter study including dose escalation and PK expansion cohorts. The primary objectives are to evaluate the safety, tolerability, pharmacokinetics, and preliminary antitumor activity of MHB088C combined with MHB039A in patients with advanced solid tumors, and to determine the maximum tolerated dose (MTD). Additional patients may be enrolled in the PK expansion part at dose levels that have completed DLT (dose-limiting toxicity) evaluation.

Based on the safety, PK, and preliminary efficacy data from the completed DLT-evaluated dose levels, the sponsor will initiate the indication expansion phase to further evaluate the safety and efficacy of MHB088C and MHB039A combination therapy in patients with specific types of advanced solid tumors.

Being tested
MHB088C for Injection, MHB039A for Injection

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MHB088C for InjectionDrug

    Intravenous administration

  • MHB039A for InjectionDrug

    Intravenous administration

Study groups in NCT07126665
Study groupRoleWhat they receive
Dose escalation phase: cohort 1ExperimentalSubjects will receive MHB088C Q2W in combination with MHB039A Q2W by intravenous administration.
Receives: Drug: MHB088C for Injection; Drug: MHB039A for Injection
Dose escalation phase: cohort 2ExperimentalSubjects will receive MHB088C Q2W in combination with MHB039A Q2W by intravenous administration.
Receives: Drug: MHB088C for Injection; Drug: MHB039A for Injection
Indication expansion phase: cohort 3ExperimentalSubjects will receive MHB088C Q2W in combination with MHB039A Q2W by intravenous administration.
Receives: Drug: MHB088C for Injection; Drug: MHB039A for Injection
Indication expansion phase: cohort 4ExperimentalSubjects will receive MHB088C Q2W in combination with MHB039A Q2W by intravenous administration.
Receives: Drug: MHB088C for Injection; Drug: MHB039A for Injection

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. (Dose-Escalation Stage): Dose-Limiting Toxicity (DLT) and Maximum tolerated dose (MTD) for MHB088C and MHB039A combination therapy

    To determine the MTD for further evaluation of IV administration of MHB088C and MHB039A combination therapy in subjects with advanced solid tumors.

    Measured: Up to day 21 from the first dose for Q3W administration, or up to day 28 from the first dose for Q2W administration.

  2. (Dose-Expansion Stage): Objective tumor response (ORR) determined by investigators according to RECIST v1.1

    Objective tumor response for target lesions will be assessed by imaging/measurement compared with the overall tumor burden at baseline (Day -28 to -1). ORR is evaluated by the number of participants with best overall response of CR and PR (Confirmed CR/PR assessment require at least 1 repeat).

    Measured: Baseline up until documented progressive disease, death, lost to follow-up, or withdrawal by the participant, up to approximately 5 years

Secondary outcomes (7)
  1. Incidence and severity of adverse events (AEs)

    AE assessed by investigator exclusively related to subject's underlying disease or medical condition [graded according to the NCI Common Terminology Criteria for Adverse Events (CTCAE), Version 5.0].

    Measured: Baseline up until documented progressive disease, death, lost to follow-up, or withdrawal by the participant, up to approximately 5 years.

  2. Pharmacokinetic (PK) parameters of total antibody, ADC, and free toxin at various time points

    The PK parameters at different time points include:Area Under the Concentration-Time Curve (AUC)

    Measured: From pre-dose to 22 days after the first dose

  3. Pharmacokinetic (PK) parameters of total antibody, ADC, and free toxin at various time points

    The PK parameters at different time points include:Maximum Plasma Concentration (Cmax)

    Measured: From pre-dose to 22 days after the first dose

  4. Duration of response (DOR) determined by investigators according to RECIST v1.1

    DoR was defined as the period from the first occurrence of CR or PR to PD or death from any cause. If no PD or death after CR/PR, the cut-off date of progression-free survival (PFS) would be used [Confirmed CR/PR assessment require at least one repeat (≥4 weeks)].

    Measured: Baseline up until documented progressive disease, death, lost to follow-up, or withdrawal by the participant, up to approximately 5 years

  5. Disease control rate (DCR) determined by investigators according to RECIST v1.1

    Objective tumor response for target lesions will be assessed by imaging/measurement compared with the overall tumor burden at baseline (Day -28 to -1). DCR was evaluated by the number of participants with best overall response of CR, PR and stable disease (SD) [Confirmed CR/PR assessment require at least one repeat (≥4 weeks); SD shall be assessed at least 5 weeks after the first dose].

    Measured: Baseline up until documented progressive disease, death, lost to follow-up, or withdrawal by the participant, up to approximately 5 years

  6. Progression-free survival (PFS) determined by investigators according to RECIST v1.1

    Objective tumor response for target lesions will be assessed by imaging/measurement compared with the overall tumor burden at baseline (Day -28 to -1). PFS was defined as the time from random assignment (dose expansion stage) or first dose (dose escalation stage) to PD or death from any cause.

    Measured: Baseline up until documented progressive disease, death, lost to follow-up, or withdrawal by the participant, up to approximately 5 years

  7. Overall survival (OS)

    OS was defined as the time from random assignment or first dose to death from any cause.

    Measured: Baseline up until death up to approximately 5 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted17 Aug 2025
  2. Study start18 Sep 2025
  3. Primary completionAug 2029 (estimated)
  4. Study completionAug 2031 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Non-randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
116 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07126665
Sponsor's protocol ID
MHB088C-E-102
Status last verified
Oct 2026
First submitted
11 Aug 2025
Last updated
9 Oct 2026
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing MHB088C for Injection and MHB039A for Injection in people with Advanced Malignant Solid Tumor, run by Minghui Pharmaceutical (Hangzhou) Ltd at 1 site in China.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 17 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: looking for participants now, as of the sponsor's last update on 9 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact VP of R&D (86 0571-869632, jwshi@minghuipharma.com), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

(Dose-Escalation Stage): Dose-Limiting Toxicity (DLT) and Maximum tolerated dose (MTD) for MHB088C and MHB039A combination therapy (time frame: Up to day 21 from the first dose for Q3W administration, or up to day 28 from the first dose for Q2W administration.). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 9 Oct 2026.

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