UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059243
Receipt number R000067688
Scientific Title Prospective cohort study of Paclitaxel plus Carboplatin plus Bevacizumab Therapy as First Line Chemotherapy for Advanced Ovarian Clear cell Carcinoma
Date of disclosure of the study information 2025/10/01
Last modified on 2025/09/30 14:45:42

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Basic information

Public title

Prospective cohort study of Paclitaxel plus Carboplatin plus Bevacizumab Therapy as First Line Chemotherapy for Advanced Ovarian Clear cell Carcinoma

Acronym

Prospective cohort study of Paclitaxel plus Carboplatin plus Bevacizumab Therapy as First Line Chemotherapy for Advanced Ovarian Clear cell Carcinoma

Scientific Title

Prospective cohort study of Paclitaxel plus Carboplatin plus Bevacizumab Therapy as First Line Chemotherapy for Advanced Ovarian Clear cell Carcinoma

Scientific Title:Acronym

JGOG3033

Region

Japan


Condition

Condition

Advanced ovarian clear cell carcinoma

Classification by specialty

Obstetrics and Gynecology

Classification by malignancy

Malignancy

Genomic information

NO


Objectives

Narrative objectives1

We investigate the efficacy and safety of the combination chemotherapy of paclitaxal, carboplarin and bevacizumab in patients with advanced ovarian clear cell carcinoma (stage III/IV).

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1

Confirmatory

Trial characteristics_2

Pragmatic

Developmental phase



Assessment

Primary outcomes

progression-free survaival

Key secondary outcomes

Overall survival, survival rate, response rate, adverse effects


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

18 years-old <=

Age-upper limit


Not applicable

Gender

Female

Key inclusion criteria

1. Patients with newly diagnosed, histologically confirmed ovarian clear cell carcinoma, FIGO stage III - IV. All patients underwent appropriate surgical procedures, including diagnostic laparoscopy, to obtain tissue for histopathological confirmation of ovarian clear cell carcinoma. In cases with mixed histology, clear cell carcinoma accounted for the predominant component (>50%). A central pathological review was not performed. Immunohistochemical evaluation for WT1 (negative), p53 (negative), and Napsin A (positive) was performed for confirmation, although it was not required.

2. Patients scheduled to receive combination chemotherapy with paclitaxel and carboplatin plus bevacizumab, who have provided informed consent for treatment. In cases where bevacizumab is contraindicated, up to two cycles of paclitaxel - carboplatin chemotherapy without bevacizumab are permitted. Patients who do not receive bevacizumab within three cycles will be excluded from the primary analysis of this study.

3. Patients aged 18 years or older.

4. Patients with an Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 2.

5. Patients with adequate organ function.

6. Patients who have provided written informed consent to participate in this clinical trial.

7. Patients who are able to initiate chemotherapy within 6 weeks after primary surgery.

Key exclusion criteria

1. Patients with contraindications specific to bevacizumab, including active pulmonary hemorrhage, cerebral hemorrhage, congenital bleeding diathesis, coagulation disorders, a history of cerebral infarction, active deep vein thrombosis (DVT), pulmonary embolism (PE), uncontrolled hypertension (>= grade 3), or proteinuria (>= grade 3, urine protein-to-creatinine ratio [UPC] >= 3.5).
Active DVT or PE is defined as symptomatic thrombosis or non-organized thrombosis under anticoagulation therapy (i.e., cases not controlled with anticoagulation).

2. Patients who are scheduled to receive PARP inhibitors alone as maintenance therapy following first-line chemotherapy.

3. Patients with a history of obstructive bowel disease, including subileus, or underlying conditions such as diverticulitis, enteric fistula, gastrointestinal perforation, or intra-abdominal abscess; patients with evident rectosigmoid invasion on pelvic examination; or patients with radiologically confirmed bowel invasion or clinical symptoms of bowel obstruction on CT imaging.
Patients in whom the invasive lesion involving the rectosigmoid or other bowel sites has been surgically resected are eligible.

4. Patients with a history of hypersensitivity to any agents used in combination with bevacizumab.

5. Patients with a history of abdominal radiotherapy.

6. Patients with a history of hemoptysis (>= 2.5 mL of fresh blood).

7. Patients with severe infections at the time of enrollment.

8. Patients deemed by the investigator to be unsuitable for participation in this study.

Target sample size

50


Research contact person

Name of lead principal investigator

1st name Shinichi
Middle name
Last name Tate

Organization

Japanese Gynecologic Oncology Group

Division name

Japanese Gynecologic Oncology Group

Zip code

162-0825

Address

4F, Komatsu Building, 6-22 Kagurazaka, Shinjuku-ku, Tokyo, Japan

TEL

03-5206-1982

Email

info@jgog.gr.jp


Public contact

Name of contact person

1st name S
Middle name
Last name Tate

Organization

Japanese Gynecologic Oncology Group

Division name

Japanese Gynecologic Oncology Group

Zip code

162-0825

Address

4F, Komatsu Building, 6-22 Kagurazaka, Shinjuku-ku, Tokyo, Japan

TEL

03-5206-1982

Homepage URL


Email

info@jgog.gr.jp


Sponsor or person

Institute

Chiba University Hospital

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Tohoku University Hospital Institutional Review Board

Address

1-1 Seiryo-machi, Aoba-ku, Sendai-shi, Miyagi, Japan

Tel

022-717-7251

Email

muneaki.shimada.b7@tohoku.ac.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2025 Year 10 Month 01 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2025 Year 09 Month 30 Day

Date of IRB


Anticipated trial start date

2025 Year 10 Month 01 Day

Last follow-up date

2030 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Age

Performance Status (PS)

Germline BRCA pathogenic variant

HRD testing

Ovarian cancer clinical information

Immunohistochemistry (IHC)

Thrombosis

Use of anticoagulation therapy (Yes/No)

Tumor markers

Assessment of ascites on CT

Neoadjuvant chemotherapy

Primary surgery / Primary debulking surgery (PDS)

Adjuvant chemotherapy

PARP inhibitor administration

(PAOLA regimen)

Response assessment under the PAOLA regimen

Details of first recurrence

Treatment at first recurrence

Cancer gene panel testing / Comprehensive genomic profiling (CGP)

Postoperative complications after cytoreductive surgery

Bevacizumab adverse events

Occurrence of second primary malignancies


Management information

Registered date

2025 Year 09 Month 30 Day

Last modified on

2025 Year 09 Month 30 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000067688