ClinicalTrials.gg
RecruitingNCT06459687Updated May 14, 2025

Phase III Study of Socazolimab as First-Line Treatment in Persistent, Recurrent, or Metastatic Cervical Cancer

A Phase 3 interventional study of Socazolimab+cisplatin/carboplatin+paclitaxel+Bevacizumab and Placebo+cisplatin/carboplatin+paclitaxel+Bevacizumab in Cervical Cancer, sponsored by Lee's Pharmaceutical Limited. Recruiting at 5 sites in China. Open to female participants aged 18 Years to 75 Years. Per ClinicalTrials.gov, last updated 2025-05-14.

Sponsored by Lee's Pharmaceutical Limited · Phase 3, Interventional, and Treatment

From the registry’s dates

  • Started Nov 2024; still recruiting 1 year 11 months later.
Phase
Phase 3
Study type
Interventional
Enrollment
440
Allocation
Randomized
Ages
18 Years to 75 Years
Sex
Female
01

Study summary

The goal of this clinical trial is to evaluate the efficacy and safety of Socazolimab combined with chemotherapy with or without bevacizumab as first-Line treatment in persistent, recurrent, or metastatic cervical cancer. The main question it aims to answer is:

Does Socazolimab combined with chemotherapy with or without bevacizumab better benefit patients with persistent, recurrent, or metastatic cervical cancer as first-line treatment compared with placebo combined with chemotherapy with or without bevacizumab.

Participants will be treated with Socazolimab/placebo + chemotherapy ± bevacizumab) for 6\~8 cycles (Q3w), following maintenance treatment of Socazolimab/placebo (Q3w).

02

Conditions studied

  • Cervical Cancer
03

In context

Uterine Cervical Neoplasms

2,366 studies on the registry are indexed under Uterine Cervical Neoplasms; 677 are open to participants now.

This study's planned enrollment of 440 is above the median of 100 across 1,738 interventional studies indexed under Uterine Cervical Neoplasms.

Browse Uterine Cervical Neoplasms studies →

Lead sponsor

Lee's Pharmaceutical Limited is the lead sponsor of 74 studies on the registry; 6 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 75 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

    1. Able to understand and voluntarily signed written . Informed consent must be signed prior to specified study procedure.
    1. Age ≥ 18 years and ≤75 years on the date of signing the informed consent, female.
    1. Physical fitness score was 0 or 1.
    1. ≥ 3 months.
    1. confirmed cervical cancer that cannot be cured by surgery or radiotherapy/concurrent chemoradiotherapy.
    1. Have at least one measurable tumor lesion examined by CT or MRI according to v1.1 criteria;
    1. All subjects must provide archived or freshly obtained tumor tissue samples (formalin-fixed paraffin-embedded [FFPE] tissue wax blocks or at least 5 unstained tumor tissue section samples, preferably newly obtained tumor tissue samples) within the previous 5 years of randomization.
    1. Laboratory examination results during the screening period indicate that the subject has good organ function.
    1. Effective should be used by fertile female subjects from the signing of informed consent until 180 days after the last administration of the study drug.

Exclusion criteria

Exclusion Criteria:

    1. Other histopathological types of cervical cancer, such as small cell carcinoma, clear cell carcinoma, sarcoma, etc.
    1. Prior anti-angiogenic therapy (e.g., bevacizumab), (e.g., anti-PD-1 antibody, anti-PD-L1 antibody, anti-CTLA-4 antibody, etc.), or targeting immune costimulators (e.g. antibodies against ICOS, 0, CD137, GITR, OX40 targets, etc.) and any treatment targeting the immune mechanism of tumor.
    1. Active or potentially recurring disease.
    1. Patients with other active malignant tumors within 3 years prior to randomization.
    1. Participants who had participated in other clinical studies and used other clinical trial drugs within 4 weeks before randomization.
    1. Major surgery, open or significant trauma within 4 weeks before randomization; Or an expected major surgical treatment during the study.
    1. Anti-tumor therapy within 4 weeks before randomization.
    1. Severe infection occurring within 4 weeks prior to randomization.
    1. Vaccination within 4 weeks prior to randomization.
    1. Received immune-modulating drugs (such as thymosin, interferon, interleukin-2) within 2 weeks before randomization.
    1. Use of systemic antibacterial, antiviral, or antifungal drugs within 2 weeks prior to randomization.
    1. Subjects requiring systemic treatment with (> 10 mg/ day of prednisone or equivalent doses of corticosteroids) or other drugs within 2 weeks prior to randomization.
    1. hydronephrosis that cannot be relieved by nephrostomy or ureteral stenting as determined by the investigator.
    1. Central nervous system or cancerous meningitis.
    1. Uncontrolled pleural, pericardial, or peritoneal effusions requiring repeated drainage (more frequently than monthly).
    1. Known primary or secondary immunodeficiency, including a positive test for (HIV) antibodies.
    1. Known history of allogeneic organ transplantation and hematopoietic stem cell transplantation.
    1. Known active tuberculosis; Known active treponema pallidum infection.
    1. known history of severe to other monoclonal antibodies.
    1. Known to cisplatin/carboplatin, paclitaxel, or allergies to any components.
    1. Previous and/or current presence of interstitial lung disease, pneumoconiosis, drug-related pneumonia, severe impairment of pulmonary function, etc., that may interfere with the detection and management of suspected drug-related pulmonary toxicity.
    1. Subjects with active viral , inactive or asymptomatic carriers of hepatitis B virus (HBV) (positive for hepatitis B surface antigen [HBsAg]) with HBV DNA > 500 IU/mL or > 2500 copies/mL), and subjects with active viral .
    1. Active or documented inflammatory bowel disease.
    1. Any of the following cardiovascular diseases: a) myocardial infarction, unstable angina pectoris, pulmonary embolism, aortic dissection, deep vein thrombosis, and any arterial thromboembolism event occurred within 6 months before randomization; b) (NYHA) heart function grade ≥ II heart failure; c) There is a serious arrhythmia that requires drug intervention; Patients with asymptomatic atrial fibrillation with stable ventricular rate were admitted; d) (LVEF) \< 50%.
    1. v5.0 ≥ 2 grade peripheral neuropathy.
    1. Not recovered from toxicity of previous antitumor therapy.
    1. Pregnant or lactating women.
    1. Any condition (such as another serious illness or psychiatric disorder) that the investigator believes may result in a risk for acceptance of the study drug or that would interfere with the evaluation of the study drug or with the safety of the subjects or the interpretation of the study results.
    1. Known contraindications to bevacizumab or allergies to any of its components, or the presence of any medical conditions that could affect the safety of bevacizumab administration.
Terms in these criteria, in plain language(23)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Life expectancy

The study doctor’s estimate of how long someone is likely to live. Criteria use it so that people can stay in the study long enough for it to answer its question.

Histologically or cytologically confirmed

The diagnosis was confirmed by looking at a sample under a microscope: tissue from a biopsy or surgery (histology), or cells from a fluid or needle sample (cytology).

Your pathology report is the document that shows this.

RECIST

The standard rules for measuring tumours on CT or MRI scans, to tell whether a cancer is shrinking, stable or growing during treatment.

“Measurable disease per RECIST 1.1” usually means at least one tumour 10 mm or more at its longest on a CT scan, or a lymph node 15 mm or more across its short axis.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

PD-1, PD-L1 and checkpoint inhibitors

PD-1, PD-L1 and CTLA-4 are proteins that act as brakes on the immune system. Checkpoint inhibitors, such as pembrolizumab or nivolumab, block them so the immune system can attack a cancer.

PD-L1 can also be measured in a tumour sample. Some scores count stained tumour cells only (TPS); others also count certain immune cells (CPS). The study names the score and the minimum it uses.

CD4 count

The number of CD4 cells, a type of white blood cell, in a given amount of blood. It is used to follow how well the immune system is doing in HIV.

Autoimmune disease

A condition in which the immune system attacks the body’s own tissues, such as rheumatoid arthritis, lupus, psoriasis, type 1 diabetes or inflammatory bowel disease.

Immunotherapy studies often leave out active autoimmune disease, and some name exceptions, such as thyroid disease on replacement hormone. Check the exceptions this study lists.

Biopsy and archival tissue

A biopsy takes a small piece of tissue to examine. “Archival tissue” is a sample already taken, for example at diagnosis, and kept by the hospital.

Whether a stored sample will do depends on when it was taken, how much there is and what the study needs. Ask whether the study accepts your stored sample or needs a new biopsy.

Corticosteroids (steroids)

Anti-inflammatory medicines such as prednisone, prednisolone and dexamethasone — not the anabolic steroids used for muscle.

Studies differ in what they allow: check which steroid medicines, routes (tablets, injections, creams, inhalers, eye drops) and doses this study accepts.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

Metastases

Cancer that has spread from where it began to other parts of the body. “Metastatic” cancer is cancer that has spread this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Allogeneic and autologous transplant

Stem cell (bone marrow) transplants. Allogeneic uses cells from a donor; autologous uses your own cells, collected earlier and given back.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

NYHA class (heart failure)

The New York Heart Association’s four classes of how much heart failure limits physical activity.

I
No limits: ordinary activity causes no undue tiredness or breathlessness.
II
Slight limits: comfortable at rest, ordinary activity causes symptoms.
III
Marked limits: comfortable at rest, less than ordinary activity causes symptoms.
IV
Symptoms even at rest; any activity makes them worse.

Studies set their own limit — many outside heart failure leave out class III–IV, while heart failure studies may ask for a particular class. Check the class this study names.

LVEF (left ventricular ejection fraction)

The share of blood the heart’s main pumping chamber (the left ventricle) pushes out with each beat, measured by an echocardiogram (heart ultrasound) or a MUGA scan. About 50–70% is normal.

CTCAE grade

The US National Cancer Institute’s scale of how severe an adverse event is — any unwanted medical event during a study, such as a symptom, an illness or an abnormal test result, whether or not a treatment caused it. Whether it did is judged separately.

1
Mild.
2
Moderate.
3
Severe.
4
Life-threatening.
5
Death due to the event.

“Side effects of earlier treatment resolved to grade 1 or less” means they have settled to mild or gone.

05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
440 participants (estimated)

Study arms

  • Experimental
    Socazolimab+Chemotherapy±Bevacizumab

    6\~8 cycles of Socazolimab (5 mg/kg) + cisplatin (50 mg/m2) /carboplatin (AUC5) + paclitaxel (175 mg/m2) ± Bevacizumab (15 mg/kg), Q3w. Followed with Socazolimab (5 mg/kg), Q3w.

    Drug: Socazolimab+cisplatin/carboplatin+paclitaxel+Bevacizumab

  • Placebo comparator
    Placebo+Chemotherapy±Bevacizumab

    6\~8 cycles of placebo (5 mg/kg) + cisplatin (50 mg/m2) /carboplatin (AUC5) + paclitaxel (175 mg/m2) ± Bevacizumab (15 mg/kg), Q3w. Followed with placebo (5 mg/kg), Q3w.

    Drug: Placebo+cisplatin/carboplatin+paclitaxel+Bevacizumab

Interventions

  • DrugSocazolimab+cisplatin/carboplatin+paclitaxel+Bevacizumab

    Drug pages: Socazolimab · Cisplatin · Carboplatin · Paclitaxel · Bevacizumab

    6\~8 cycles of Socazolimab (5 mg/kg) + cisplatin (50 mg/m2) /carboplatin (AUC5) + paclitaxel (175 mg/m2) ± Bevacizumab (15 mg/kg), Q3w. Followed with Socazolimab (5 mg/kg), Q3w.

  • DrugPlacebo+cisplatin/carboplatin+paclitaxel+Bevacizumab

    6\~8 cycles of placebo (5 mg/kg) + cisplatin (50 mg/m2) /carboplatin (AUC5) + paclitaxel (175 mg/m2) ± Bevacizumab (15 mg/kg), Q3w. Followed with placebo (5 mg/kg), Q3w.

06

What researchers measure

Primary outcomes

  1. Overall survival

    Time frame: From date of randomization to date of death from any cause, assessed up to 100 months.

Secondary outcomes

  1. PFS (assessed by BICR, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  2. ORR (assessed by BICR, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  3. DoR (assessed by BICR, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  4. DCR (assessed by BICR, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  5. TTR (assessed by BICR, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  6. PFS (assessed by investigators, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  7. ORR (assessed by investigators, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  8. DoR (assessed by investigators, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  9. DCR (assessed by investigators, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  10. TTR (assessed by investigators, based on RECIST v1.1)

    Time frame: From date of randomization to date of death from any cause or lost of visit, whichever came first, assessed up to 100 months.

  11. Safety: adverse events, clinical abnormalties

    Time frame: from written informed concent to 90 days after last dose

  12. Tmax

    Time frame: from 30min before first dose to 30 days after last dose

  13. Cmax

    Time frame: from 30min before first dose to 30 days after last dose

  14. T1/2

    Time frame: from 30min before first dose to 30 days after last dose

  15. Immunogenicity

    ADA, NAb

    Time frame: from 30min before first dose to 30 days after last dose

  16. Health-related quality of life (HRQoL)

    using EORTC QLQ-C30 Questionnaire

    Time frame: from screening to end of treatment visit, up to 100 months

  17. PD-L1 status

    Time frame: up to 100 months

07

Study locations

5 of 5 sites recruiting
08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 14, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT06459687
Responsible party
Sponsor
First posted
Jun 14, 2024
Start date
Nov 28, 2024
Primary completion
Sep 1, 2027 (estimated)
Completion
Sep 1, 2028 (estimated)
Last update
May 14, 2025

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Interested in this study?

Eligibility is decided by the study team. Share this record with your doctor or contact the team directly.

No contact was published for this record. The registry link below has the sponsor’s details.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Studies of the drugs tested here: Socazolimab · Cisplatin · Carboplatin · Paclitaxel · Bevacizumab

Start the discussion