New cancer drug BB-1709 enters first human trials
NCT ID NCT06241898
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early-stage trial is testing an experimental drug called BB-1709 in 300 adults with advanced solid tumors that have not responded to standard treatments. The main goals are to check the drug's safety, find the best dose, and look for early signs that it might shrink tumors. Participants will continue treatment as long as they benefit, but the study is primarily focused on safety and dosing.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- BB-1709 (an experimental drug)
- What this could lead to
- If successful, this could point toward a new treatment option for people with advanced solid tumors that have stopped responding to standard therapies.
- What could go wrong
- This is a very early Phase 1 trial, so the main goal is safety, not effectiveness. The drug may not shrink tumors or could cause side effects. Results may not apply to all cancer types.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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About 300 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2023
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 78 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: 1. Willing and able to provide written informed consent form (ICF) for the trial. Adult patients ≥ 18 years at the time of signing ICF. 2. Histologically or cytologically confirmed unresectable locally advanced or metastatic solid tumors in patients who must have progressed on, be refractory to, or intolerant to prior SOC. 3. At least one measurable lesion as defined per RECIST Version 1.1. 4. Be able to provide archived or fresh tumor tissue specimens. 5. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. 6. Life expectancy ≥12 weeks. Exclusion Criteria: 1. Receiving anti-tumor therapy (systemic anti-tumor therapies, immunotherapy, biotherapy, topic therapy, other investigational product, radiation therapy, or surgery) within 4 weeks prior to the first dose of study treatment; receiving anti-tumor small-molecule agents within 2 weeks or 5 half-lives (whichever is longer) prior to the first dose of study treatment; receiving anti-tumor Chinese traditional medication and herbal remedies within 2 weeks prior to the first dose of study treatment. 2. Prior history of other malignancies within the previous 3 years, except for noninvasive malignancies such as cervical carcinoma in situ, in situ prostate cancer, non-melanomatous carcinoma of the skin, ductal carcinoma in situ of the breast that has been surgically cured. 3. Major surgery or significant traumatic injury within 4 weeks before the first dose of study treatment or not fully recovered from surgery; or surgery planned during the study. 4. Not recovered to baseline or CTCAE v5.0 ≤ grade 1 AEs from prior anti-cancer therapy except for alopecia, or asymptomatic and clinically not significant laboratory abnormalities. 5. Grade 2 or greater peripheral neuropathy (PN) when signing ICF, or history of grade 3 neurotoxicity or PN, or history of treatment discontinuation due to neurotoxicity or PN. 6. Active pneumonitis/interstitial lung disease (ILD), or history of radiotherapy to lung field within 12 months before the first dose of study treatment, or current lung disease with clinical symptoms(e.g., symptomatic chronic obstructive pulmonary disease or dyspnea) 7. Symptomatic or untreated central nervous system (CNS) metastases, or CNS metastases or leptomeningeal disease or carcinomatous meningitis requiring ongoing treatment for CNS metastases, including surgery or radiation therapy or steroids (\>10 mg/day of prednisone or equivalent) and antiepileptic agents. 8. Uncontrolled ascites, pleural effusion or pericardial effusion, as determined by the Investigator. 9. Active autoimmune disease, except vitiligo or cured childhood asthma/allergies that requires no intervention after adulthood, autoimmune-mediated hypothyroidism treated with stable doses of thyroid hormone replacement, or Type I diabetes treated with stable doses of insulin can be excepted. 10. History of organ transplantation (i.e., stem cell or solid organ transplant). 11. Known history of human immunodeficiency virus (HIV) infection with the exception of patients with CD4+ T cell (CD4+) counts ≥350 cells/µL, or have not had a history of AIDS-defining opportunistic infections, or have not had a history of AIDS-defining opportunistic infections within the past 12 months , or on established antiretroviral therapy (ART) for more than four weeks and have an HIV viral load \<400 copies/mL prior to enrollment. 12. Active hepatitis B or hepatitis C infection, demonstrated by positive serology or requiring treatment. Subjects who are anti-HBs/HBcAb (+) without detectable HBV-DNA or are with undetectable HCV RNA are eligible. Subjects co-infected with hepatitis B and hepatitis C should be excluded. 13. Any other serious underlying medical conditions, including but not limited to, uncontrolled diabetes mellitus, active uncontrolled infection (e.g. tuberculosis), active gastric ulcer, uncontrolled seizures, cerebrovascular incidents within 6 months prior to study treatment, gastrointestinal bleeding within 3 months prior to study treatment, severe signs and symptoms of coagulation and clotting disorders. 14. Receipt of live vaccines within 4 weeks prior to the first dose of the study drug. 15. Females who are pregnant or breastfeeding. 16. History of severe hypersensitivity or known to be allergic to protein drugs or recombinant proteins or excipients in BB-1709 drug formulation. 17. Concurrent condition that in the investigator's opinion would interfere with evaluation of the study drug or interpretation of subject safety or study results. \-
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Beijing Cancer Hospital
RECRUITINGBeijing, Beijing Municipality, China
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a Two-Drug combo outsmart advanced cancer?
- Can an experimental pill boost cancer immunotherapy? early trial puts HG146 to the test
- New injectable drug tested for safety in Hard-to-Treat solid tumors
- New antibody drug conjugate tested against advanced cancers