When to operate? ovarian cancer trial tests best time for surgery after chemo
NCT ID NCT03579394
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This trial studied 211 women with advanced ovarian cancer who were not candidates for upfront surgery. Researchers compared having surgery after 3 rounds of chemotherapy versus after 6 rounds. The goal was to see which timing leads to longer disease-free survival. All patients received standard carboplatin and paclitaxel chemo.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Carboplatin and paclitaxel chemotherapy followed by interval debulking surgery
- What this could lead to
- If successful, this could help doctors decide the best timing for surgery after chemotherapy to improve how long patients stay free of ovarian cancer.
- What could go wrong
- This is a completed trial, but it only looked at timing of surgery, not a new drug. Results may not apply to all ovarian cancer types or stages.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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211 people
The number who actually took part.
- Started
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Oct 2018
- Finished
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Oct 2025
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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 99 years
- Sex
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Female participants only
- 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. Female patients ≥18 years. 2. Histologically confirmed epithelial ovarian cancer, fallopian tube carcinoma or primary peritoneal carcinoma, high grade serous or endometrioïd, with the exception of mucinous, clear cell and carcinosarcoma histologies. 3. Performance status \< 2 (see Appendix 2). 4. Documented International Federation of Gynecologic Oncology (FIGO 2014, Appendix 1) stage IIIB-IIIC-IVa unsuitable for complete primary cytoreductive surgery (confirmed by open laparoscopy or by laparotomy \[not mandatory for stage IVA\]). 5. Patient must be judged resectable after 3 courses of Neoadjuvant chemotherapy 6. Adequate bone marrow, liver and renal function to receive chemotherapy and subsequently to undergo surgery: * White blood cells (WBC) \>3x109/L, absolute neutrophil count (ANC) ≥1,5x109/L, platelets (PLT) ≥100x109/L, hemoglobin (Hb) ≥9 g/dL, * Serum creatinine \<1.25 x upper normal limit (UNL) or creatinine clearance ≥ 30 mL/min according to Cockroft-Gault formula or to local lab measurement, serum bilirubin \<1.25 x UNL, AST(SGOT) and ALT(SGPT) \<2.5 x UNL. 7. Signed informed consent obtained prior to any study-specific procedures. 8. Patient affiliated to, or a beneficiary of, a social security category Exclusion Criteria: 1. Mucinous, clear cell , carcinosarcoma and low grade serous carcinomahistologies. 2. Synchronous or previous other malignancies within 3 years prior to starting study treatment, with the exception of adequately treated non-melanomatous skin cancer or carcinoma in situ (of the cervix or breast or other sites). 3. Patients with brain metastases, seizure not controlled with standard medical therapy, or history of cerebrovascular accident (CVA, stroke) or transient ischemic attack (TIA) or subarachnoid hemorrhage before 6 months from the enrollment on this study. 4. Any other concurrent medical conditions contraindicating surgery or chemotherapy that could compromise the adherence to the protocol (including but not limited to impaired cardiac function or clinically significant cardiac diseases, active or uncontrolled infections, HIV-positive patients on antiretroviral therapy, uncontrolled diabetes, cirrhosis, chronic active or persistent hepatitis, impaired respiratory function requiring oxygen-dependence, serious psychiatric disorders). 5. Pregnant or breastfeeding women.
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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.
Contacts and locations
Locations
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CHU Grenoble-Alpes - Site Nord (La Tronche)
Grenoble, 38043, France
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CHU de BREST - Hôpital Cavale Blanche
Brest, 29200, France
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CHU de Limoges - Hôpital de la Mère et de l'Enfant
Limoges, 87000, France
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Centre Antoine Lacassagne
Nice, 06189, France
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Centre François Baclesse
Caen, 14000, France
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Centre Georges François Leclerc
Dijon, 21079, France
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Centre Hospitalier Universitaire Bretonneau
Tours, 37000, France
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Centre Hospitalier Universitaire Caen
Caen, 14033, France
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Centre Jean Bernard - Clinique Victor Hugo
Le Mans, 72000, France
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Centre Jean Perrin
Clermont-Ferrand, 63000, France
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Centre Léon Bérard
Lyon, 69373, France
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Clinique Médico-chirurgicale CHARCOT
Sainte-Foy-lès-Lyon, 69110, France
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Groupe Hospitalier Pitié Salpétrière
Paris, 75651, France
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Gustave Roussy
Villejuif, 94805, France
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Hôpital Cochin
Paris, 75014, France
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Hôpital Européen Georges Pompidou
Paris, 75015, France
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Hôpital Privé du Confluent
Nantes, 44202, France
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Hôpital René Huguenin, Institut Curie
Saint-Cloud, 92210, France
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Hôpital Saint-Joseph
Marseille, 13008, France
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Hôpital Simone Veil
Eaubonne, 95602, France
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Hôpital de la Milétrie - Centre Hospitalier Universitaire de Poitiers
Poitiers, 86021, France
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Hôpital du Scorff
Lorient, 56100, France
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ICA - Polyclinique Urbain V
Avignon, 84000, France
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ICM Val d'Aurelle
Montpellier, 34298, France
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ICO Centre René Gauducheau
Saint-Herblain, 44805, France
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Institut Bergonié
Bordeau, 33076, France
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Institut Claudius Regaud
Toulouse, 31059, France
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Institut Jean Godinot
Reims, 51056, France
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