ClinicalTrials.gg
Not yet recruitingNCT07637851RegeNovarUpdated Jul 10, 2026

Safety and Efficacy of Ubamatamab With First-line Chemotherapy in Ovarian Cancer

A Phase 1/2 interventional study of Ubamatamab and Chemotherapy in Ovarian Cancer, sponsored by ARCAGY/ GINECO GROUP. Not yet recruiting at 11 sites in France. Open to female participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-07-10.

Sponsored by ARCAGY/ GINECO GROUP · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
43
Allocation
Not applicable
Ages
18 Years and older
Sex
Female
01

Study summary

The purpose of this clinical trial is to assess the safety and efficacy of ubamatamab in combination with first-line chemotherapy in patients with ovarian cancer. The main questions it aims to answer are:

  • What is the safety profile of ubamatamab when administered with carboplatin-paclitaxel ± bevacizumab?
  • What is the objective response rate after three cycles of ubamatamab in combination with carboplatin-paclitaxel ± bevacizumab?

Participants will:

  • Receive three cycles of ubamatamab in combination with carboplatin-paclitaxel ± bevacizumab, followed by maintenance therapy with ubamatamab ± bevacizumab for up to 15 months, depending on HRD status and disease response after the initial treatment cycles.
  • Attend regular clinic visits throughout the treatment period for checkups and tests
02

Conditions studied

  • Ovarian Cancer

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Keywords

  • chemotherapy
  • poor prognostic
  • unfavorable primary chemosensitivity
  • incomplete debulking surgery
  • KELIM
03

In context

Ovarian Neoplasms

3,381 studies on the registry are indexed under Ovarian Neoplasms; 790 are open to participants now.

This study's planned enrollment of 43 is below the median of 54 across 2,548 interventional studies indexed under Ovarian Neoplasms.

Browse Ovarian Neoplasms studies →

Lead sponsor

ARCAGY/ GINECO GROUP is the lead sponsor of 51 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 and older
Sexes eligible
Female
Accepts healthy volunteers
No

Eligibility criteria

Inclusion Criteria:

  1. confirmed high-grade epithelial (serous, endometrioid, or carcinosarcoma with a ≥30% epithelial tumor component) ovarian, primary peritoneal, or fallopian-tube carcinoma
  2. Adult patient aged ≥ 18 years old
  3. Advanced stage III or IV
  4. Treated with 3 or 4 standard cycles of carboplatin-paclitaxel regimen, in , given every 3 weeks, and characterized by 2 unfavorable features (both are required):

    • A poorly chemosensitive disease defined by an unfavorable standardized KELIM score \< 1.0 calculated on CA-125 KELIM™ calculator for patients treated with neo-adjuvant chemotherapy
    • A disease considered not amenable to complete interval cytoreductive surgery with no post-operative macroscopic residual lesion (either because the interval cytoreductive surgery attempt was incomplete CC2-CC3, or because the surgeon considers a complete interval cytoreductive surgery is not achievable based on imaging and/or laparoscopic explorations)
  5. Disease measurable and assessable by imaging based on 1.1 criteria (thorax-abdomen-pelvis CT-scanner; FDG-PET-CT-scanner; and/or MRI)
  6. Availability of a tumor tissue for translational research (, or alternatively from fresh biopsy, and/or surgery)
  7. (ECOG) performance status 0 or 1
  8. BRCA and HRD status known, or planned during the trial (before maintenance treatment)
  9. Adequate bone marrow function

    • Red blood cells: baseline ≥8 g/dL (without red blood cell transfusion within 3 weeks before the blood work)
    • White blood cells: (ANC) ≥1500 cells/mm3
    • : Platelet count ≥100,000/mm3
  10. Adequate renal and liver functions

    • (AST) and alanine aminotransferase (ALT) ≤2.5 × (ULN), or ≤5 × ULN in context of liver
    • Total ≤1.5 × ULN (patients with Gilbert's are eligible if total bilirubin ≤3 × ULN)
    • Albumin ≥3 g/dL
    • ≥40 mL/min/1.73 m2 (measured or estimated, ideally with formula on https://www.kidney.org/professionals/kdoqi/gfr_calculator )
  11. Adequate heart function: ≥ 50%, measured by echocardiogram, and troponin levels above the upper limit of normal (ULN). The case of troponin level comprised between 1.0 and 2 ULN, inclusion may be discussed after cardiological assessment.
  12. of at least 3 months
  13. Patients who gave their written to participate to the study
  14. Patients affiliated to a social insurance regime
  15. Patient is willing and able to comply with the protocol for the duration of the study including undergoing treatment and scheduled visits and examinations including follow-up.

Non-inclusion Criteria:

  1. Low-grade endometrioid, clear cell, mucinous, or sarcomatous histology, or mixed tumors containing any of these histologies, or low-grade or borderline ovarian tumor.
  2. Patients with primary platinum- disease, defined as disease that has radiologically progressed during the neo-adjuvant chemotherapy
  3. to ubamatamab
  4. Contraindication to carboplatin, paclitaxel or bevacizumab
  5. Previous treatment with bevacizumab during initial standard neo-adjuvant chemotherapy
  6. Prior treatment with therapies or T-cell therapies, or any other experimental anti-cancer systemic therapy
  7. Patients with second primary cancer, except: adequately treated non-melanoma skin cancer, curatively treated in-situ cancer of the cervix, or other solid tumors curatively treated with no evidence of disease for ≥ 2 years.
  8. All trial participants with , except those meeting the following criteria (all criteria are required):

    1. Brain metastases that have been treated locally, and are clinically asymptomatic for at least 4 weeks prior to enrolment,
    2. No ongoing neurological symptoms that are related to the brain localization of the disease (sequelae that are a consequence of the treatment of the brain metastases are acceptable).
    3. Trial participants with brain metastases must be either off except a stable or decreasing dose of \<10mg daily prednisone (or equivalent).
  9. Encephalitis, meningitis, or uncontrolled seizures in the year prior to informed consent
  10. Patients receiving any systemic chemotherapy, radiotherapy (except for symptomatic/palliative reasons), within 3 weeks before the first dose of ubamatamab. The patient can receive a stable dose of bisphosphonates for bone metastases, before and during the study if these were started at least 4 weeks prior to treatment with study drug.
  11. Persistent toxicities (≥ grade 3), caused by previous cancer therapy
  12. Treatment with other agents.
  13. Bowel occlusive syndrome, inflammatory bowel disease, immune colitis, or other gastro-intestinal disorder that does not allow oral medication, such as malabsorption.
  14. (i.e., active) and severe cardiovascular disease according to investigator opinion such as myocardial infarction (\< 6 months prior to enrollment); any history of myocarditis; significant arrhythmia including paroxysmal atrial fibrillation requiring intervention at any time or implantation of a pacemaker or defibrillator; signs or symptoms of active angina; arrhythmia or heart failure; LEVF \< 50% with echocardiogram; (Friedericia) interval >470 msec (in cases of asymptomatic prolonged QTc interval (>470 msec), the can be repeated up to 2 times. If subsequent QTc interval is \<470 msec, the patient may be enrolled but only after review and approval by a cardiologist); Evidence of Second-Degree AV block type II (Mobitz type II) or AV block type III (complete heart block); Baseline serum troponin above institutional upper limit of normal. In cases of minimally elevated troponin in absence of clinical symptoms, after clearance by a cardiologist, the patient may be enrolled.
  15. Untreated pulmonary embolism (PE) or deep vein thrombosis (DVT), not currently managed with anticoagulant therapy. Ongoing or recent (within 5 years) evidence of significant disease that required treatment with systemic treatments, which may suggest risk for immunological adverse events. The following are not exclusionary: vitiligo, childhood asthma that has resolved, hypothyroidism that required only hormone replacement, type 1 diabetes or psoriasis that does not require systemic treatment
  16. Uncontrolled infection with , or infection; or diagnosis of immunodeficiency or known latent tuberculosis infection.

    Participants will be tested for HCV and HBV at screening per Section 5.2

    • Patients with HIV who have controlled infection (undetectable viral load and above 350 either spontaneously or on a stable antiviral regimen) are permitted.
    • Patients with hepatitis B surface antigen positive (HepBsAg+) who have controlled infection (serum hepatitis B virus DNA PCR that is below the limit of detection AND receiving antiviral therapy for hepatitis B) are permitted.
    • Participants with HBsAg negative but total HBV core antibody positive (HBc Ab+) are permitted with the following requirements: If serum HBV DNA PCR is above the limit of detection at screening, antiviral therapy for HBV must be initiated prior to study entry. If serum HBV DNA PCR is below the limit of detection periodic monitoring of HBsAg must be performed.
    • Patients who are Hepatitis C virus antibody positive (HCV Ab +) who have controlled infection (undetectable HCV RNA by PCR either spontaneously or in response to a successful prior course of anti-HCV therapy) are permitted.
  17. Other active infections requiring hospitalization or IV anti-infectives within 2 weeks before starting study treatment.
  18. Receipt of a within 30 days of planned start of study medication.
  19. Pregnant or lactating patients or patients expecting to conceive children within the projected duration of the trial.
  20. Women of (WOCBP)* who are unwilling to practice highly effective prior to the initial dose/start of the first treatment, during the study, and for at least 6 months after the last dose. Highly effective contraceptive measures include:

    1. stable use of combined (estrogen and progestogen containing) hormonal contraception (oral, intravaginal, transdermal) or progestogen-only hormonal contraception (oral, injectable, implantable) associated with inhibition of ovulation initiated 2 or more menstrual cycles prior to screening
    2. intrauterine device (IUD); intrauterine hormone-releasing system (IUS)
    3. bilateral tubal occlusion/ligation
    4. vasectomized partner (provided that the male vasectomized partner is the sole sexual partner of the study participant and that the vasectomized partner has obtained medical assessment of surgical success for the procedure) and/or e. sexual abstinence** *** * WOCBP are defined as women who are fertile following menarche until becoming , unless permanently sterile. Permanent sterilization methods include hysterectomy, bilateral salpingectomy, and bilateral oophorectomy.

    A postmenopausal state is defined as no menses for 12 months without an alternative medical cause. A high follicle-stimulating hormone (FSH) level in the postmenopausal range may be used to confirm a postmenopausal state in women not using hormonal contraception or hormonal replacement therapy. However, in the absence of 12 months of amenorrhea, a single FSH measurement is insufficient to determine the occurrence of a postmenopausal state. The above definitions are according to Clinical Trial Facilitation Group (CTFG) guidance.

    ** Sexual abstinence is considered a highly effective method only if defined as refraining from heterosexual intercourse during the entire period of risk associated with the study treatments. The reliability of sexual abstinence needs to be evaluated in relation to the duration of the clinical trial and the preferred and usual lifestyle of the patient.

    ***Periodic abstinence (calendar, symptothermal, post-ovulation methods), withdrawal (coitus interruptus), spermicides only, and lactational amenorrhea method (LAM) are not acceptable methods of contraception. Female condom and male condom should not be used together.

  21. Known psychiatric disorder that would interfere with trial compliance.
  22. Patient deprived of liberty, under guardianship, or under curatorship
Terms in these criteria, in plain language(38)

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.

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.

Adjuvant and neoadjuvant

Neoadjuvant treatment is given before the main treatment (usually surgery), often to shrink a tumour. Adjuvant treatment is given after it, to lower the chance of the cancer coming back.

Line of therapy

A line of therapy is one course of treatment, which may combine several drugs. First-line is the first course given; second-line follows when that stops working or is not tolerated.

“Two prior lines” means two courses that count separately under the study’s rules — not simply two drugs. Ask the study team if you are unsure how yours are counted.

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.

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.

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.

Hemoglobin (Hb)

The protein in red blood cells that carries oxygen. A low level is anaemia, which can cause tiredness and breathlessness. Measured in g/dL or g/L (9 g/dL is 90 g/L).

Absolute neutrophil count (ANC)

The number of neutrophils, white blood cells that help fight infection, in a given amount of blood. Too few raises the risk of infection.

It is a count, not a percentage of the white cells. Limits are written in units that mean the same: ≥ 1.5 × 10⁹/L is ≥ 1,500 per mm³ (µL). Each lab has its own reference range.

Platelets

Blood cells that help blood clot. Too few raises the risk of bleeding and bruising. A usual adult range is about 150–400 × 10⁹/L (150,000–400,000 per µL); each lab has its own reference range.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Metastases

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

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

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.

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.

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.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

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.

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.

Brain metastases

Cancer deposits in the brain from a cancer that started elsewhere in the body (CNS metastases include the spinal cord).

Studies differ: some leave out any brain metastases, some accept ones treated and stable for some weeks. Check what this study allows.

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.

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.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

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.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

ECG (electrocardiogram)

A recording of the heart’s electrical activity, taken with stickers on the chest, arms and legs. It takes a few minutes and does not hurt.

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.

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.

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.

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.

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.

Live vaccines

Vaccines made with a weakened form of the germ, such as measles–mumps–rubella (MMR), chickenpox and yellow fever. They can be risky when the immune system is weakened. Flu injections are not live; the nasal flu spray is.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

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.

Postmenopausal

Periods have stopped for good: usually no period for 12 months in a row without another medical reason, sometimes confirmed by a blood test (FSH).

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
43 participants (estimated)

Study arms

  • Experimental
    Carboplatin-paclitaxel-bevacizumab + ubamatamab

    All participants will receive 3 cycles of the combination carboplatin-paclitaxel-bevacizumab + ubamatamab. After the 3 cycles, they will undergo surgery if it is feasible. Subsequently, they will receive maintenance treatment: * ubamatamab + bevacizumab: for participants with BRCA wild-type and HRD negative tumors and for participants with a disease characterized by a BRCA mutation, or HRD positive status, and experiencing stable disease during the chemotherapy * Olaparib + bevacizumab (standard of care): for participants with a disease characterized by a BRCA mutation, or HRD-positive status, and experiencing complete or partial response during the chemotherapy.

    Drug: Ubamatamab · Drug: Chemotherapy · Drug: Bevacizumab · Drug: GCSF

Interventions

  • Dosage form: Solution for perfusion Dosage: 5 mg/mL; 50 mg/mL Frequency: administration every three weeks Treatment duration: 15 months

  • DrugChemotherapy

    Carboplatin + Paclitaxel administered at each cycle of 21 days (in total 3 cycles).

  • Bevacizumab administered at each cycle of 21 days (3 cycles in total) then during maintenance therapy every 3 weeks.

  • DrugGCSF

    Administered at each cycle during the 3 first cycles of the drug combination (chemotherapy + bevacizumab + ubamatamab).

This study also gives Olaparib. No intervention listed here names it: that was found by reading the record.

06

What researchers measure

Primary outcomes

  1. Safety run-in phase I : Safety and recommended dose for phase II trial during the Dose-limiting toxicities monitoring period

    Incidence of Treatment emergent adverse events according to NCI CTCAE version 6.0 (Safety and Tolerability)

    Time frame: Up to 4 weeks of treatment

  2. Safety run-in phase I : Safety and recommended dose for phase II trial during the Dose-limiting toxicities monitoring period

    Dose-limiting toxicities (DLT) occurring during the DLT period (Safety and Tolerability)

    Time frame: Up to 4 weeks of treatment

  3. Safety run-in phase I : Safety and recommended dose for phase II trial during the Dose-limiting toxicities monitoring period

    The recommended dose for phase II trial (RP2D) of ubamatamab in combination with carboplatin-paclitaxel + bevacizumab

    Time frame: From Cycle 1 Day 1 of the first patient included to Cycle 3 Day 1 of the sixth patient included (each cycle is 21 days) (Safety and Tolerability)

  4. Efficacy phase II part

    Objective response rate (ORR): Percentage of patients experiencing complete (CR) or partial response (PR) as the best overall radiological response after 3 cycles of ubamatamab in combination with carboplatin-paclitaxel-bevacizumab based on RECIST 1.1 criteria

    Time frame: 1 month after Cycle 3 Day 1 of the sixth patient included (each cycle is 21 days).

Secondary outcomes

  1. Safety during the whole treatment period

    Incidence of Treatment emergent Adverse events according to NCI CTCAE version 6.0 during the whole treatment period (Safety and Tolerability)

    Time frame: From study treatment start to 90 days after the last dose of ubamatamab

  2. Objective response rate (ORR)

    Percentage of patients experiencing complete (CR) or partial response (PR) as the best overall radiological response during the whole study treatment period based on RECIST 1.1 criteria.

    Time frame: Through study treatment completion, an average of 15 months.

  3. Duration of response in patients experiencing an objective response

    Time from first objective response to first objective documented disease progression (based on RECIST v1.1 criteria), or to death (regardless of the cause in the absence of disease progression).

    Time frame: From study treatment start to disease progression or death whichever occurs first assessed up to 48 months.

  4. Disease control rate (DCR)

    Percentage of patients experiencing complete (CR) or partial response (PR) or stable disease (SD) as the best overall radiological response during the whole treatment period based on RECIST 1.1 criteria.

    Time frame: From study treatment start to end of treatment, an average of 15 months.

  5. Percentage of patients operated with late cytoreductive surgery

    To determine the percentage of patients operated with late cytoreductive surgery (after 3 cycles of the study regimen), and among them the percentage of patients operated with complete surgery without any macroscopic residual lesion. Patients who have not progressed or died at the time of analysis will be censored at the time of the latest date of assessment from their last evaluable RECIST assessment.

    Time frame: After 3 cycles of treatment (each cycle is 21 days).

  6. Progression-free survival (PFS)

    Time from treatment start until the date of event defined as the first objective documented disease progression (based on RECIST v1.1 criteria) or death (regardless of the cause in the absence of progression).

    Time frame: From study treatment start to disease progression or death whichever occurs first assessed up to 48 months.

  7. Overall survival (OS)

    Time from the date from treatment start until death regardless of the cause. Any patient not known to have died at the time of analysis will be censored based on the last recorded date on which the patient was known to be alive.

    Time frame: From study treatment start to death or end of study whichever occurs first assessed up to 48 months.

  8. Progression-free survival during subsequent line of treatment (PFS-ST)

    Time from the start of the subsequent line of treatment until the date of event defined as the first objective documented progression (based on RECIST v1.1), or death (regardless of the cause in the absence of progression).

    Time frame: From new treatment start to progression or death whichever occurs first assessed up to 48 months.

07

Study locations

11 sites
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jul 10, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07637851
Lead sponsor
ARCAGY/ GINECO GROUP
Responsible party
Sponsor
First posted
Jun 10, 2026
Start date
Aug 2026 (estimated)
Primary completion
Sep 2028 (estimated)
Completion
Apr 2030 (estimated)
Last update
Jul 10, 2026

Study contacts

Mihary ANDRIAMAMONJY
Contact
mandriamamonjy@arcagy.org
01 84 85 20 09
Benoit YOU
principal investigator · HCL - Centre Hospitalier Lyon Sud

Oversight

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

Not currently enrolling

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Discussion

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Studies of the drug tested here: Ubamatamab

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