Utility of Adjusting Chemotherapy Dose & Dosing Schedule With the SALVage Weekly Dose-dense Regimen in Patients With Poor Prognostic OVARian Cancers Based on the Tumor Unfavorable Primary Chemosensitivity and Incomplete Debulking Surgery

NCT06476184RecruitingPHASE3INTERVENTIONAL

Summary

Key Facts

Lead Sponsor

ARCAGY/ GINECO GROUP

Enrollment

250

Start Date

2024-07-30

Completion Date

2027-06-01

Study Type

INTERVENTIONAL

Official Title

A Pragmatic Randomized Phase III Trial to Assess the Utility of Adjusting Chemotherapy Dose & Dosing Schedule With the SALVage Weekly Dose-dense Regimen in Patients With Poor Prognostic OVARian Cancers Based on the Tumor Unfavorable Primary Chemosensitivity and Incomplete Debulking Surgery

Interventions

CarboplatinPaclitaxel

Conditions

Ovarian Cancer

Eligibility

Age Range

18 Years+

Sex

FEMALE

Inclusion Criteria:

1. Histologically 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 disease
4. Treated with 3 to 4 neo-adjuvant cycles of standard 3-weekly carboplatin-paclitaxel regimen in first-line setting, and characterized by:

   * Unfavorable standardized KELIMTM score \< 1.0 calculated with the KELIMTM academic tool and available for free on internet site (https://www.biomarker-kinetics.org/CA-125-neo) (poor primary chemosensitivity)
   * Not amenable to complete interval debulking surgery (incomplete interval debulking surgery attempt, or disease not operated at all because considered not amenable to complete surgery by surgeon) Of note, a pre-screening inclusion before the start of neo-adjuvant chemotherapy is encouraged as a way of prospectively assessing the CA-125 longitudinal kinetics and surgery evaluation, and subsequently selecting the patients for the randomization sequence
5. ECOG performance status 0 or 1 (see appendix 2)
6. Adequate organ and bone marrow function for weekly-dense chemotherapy: red blood cells (baseline Hemoglobin ≥8 g/dL without red blood cell transfusion within 3 weeks before the blood work), white blood cells (Absolute neutrophil count (ANC) ≥1500 cells/mm3) and platelets (Platelet count ≥100,000/mm3),
7. Adequate renal and liver functions

   * Aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤2.5 × upper limit of normal (ULN), or ≤5 × ULN in context of liver metastases
   * Total bilirubin ≤1.5 × ULN (patients with Gilbert's are eligible if total bilirubin ≤3 × ULN)
   * Albumin ≥3 g/dL
   * Creatinine clearance ≥40 mL/min/1.73 m2 (measured or estimated, ideally with CKD-EPI formula on https://www.kidney.org/professionals/kdoqi/gfr\_calculator)
8. Patients who gave its written informed consent to participate to the study
9. Patients affiliated to a social insurance regime
10. Patients 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

Exclusion 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. Contraindication to the drugs assessed in the SALVOVAR trial (carboplatin, paclitaxel, GCSF)
2. Previous treatment with bevacizumab during initial standard neo-adjuvant chemotherapy
3. Has primary platinum-refractory disease, defined as disease that has progressed during the neo-adjuvant chemotherapy
4. Patients with concomitant 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 ≥ 5 years
5. Treatment with other investigational agents in clinical trials.
6. Clinically significant uncontrolled condition(s) which, in the opinion of the Investigator, may confound the results of the trial or interfere with the patient's safety or participation, including but not limited to:

   * Unstable angina.
   * Myocardial infarction within 6 months of first dose.
   * Uncontrolled and/or severe concomitant diseases (uncontrolled hypertension, ≥ Grade 3 (per CTCAE v5.0) arrhythmia, heart failure, cirrhosis).
   * Active infectious disease requiring IV therapy (bacteria, viruses) within 2 weeks of first dose.
   * Gastric-outlet obstruction.
   * Small bowel obstruction (SBO) defined as computed tomography (CT) scan showing: Dilated loops of small bowel ≤12 weeks of study entry, symptomatic ascites/effusions requiring paracentesis or thoracentesis ≤30 days of study entry.
7. Known psychiatric disorder that would interfere with trial compliance.
8. Pregnant or lactating patients or patients expecting to conceive children within the projected duration of the trial.
9. Patient deprived of liberty, under guardianship, or under curatorship.

Outcome Measures

Primary Outcomes

Percentage of patients operated with late complete debulking surgery

To demonstrate the superiority in terms of efficacy of a densification of the chemotherapy with the salvage weekly dose-dense carboplatin-paclitaxel regimen compared to the continuation of the standard 3-weekly carboplatin-paclitaxel, in ovarian cancer patients found to have a poor prognostic disease (characterized by a poor chemosensitivity, with an unfavorable KELIMTM score \< 1.0, and a disease not amenable to complete interval debulking surgery) after 3 cycles of standard neo-adjuvant chemotherapy.

Time frame: From the date of randomization until patients operated with late complete debulking surgery, assessed up 100 days

Overall survival (OS)

To demonstrate the superiority in terms of efficacy of a densification of the chemotherapy with the salvage weekly dose-dense carboplatin-paclitaxel regimen compared to the continuation of the standard 3-weekly carboplatin-paclitaxel, in ovarian cancer patients found to have a poor prognostic disease (characterized by a poor chemosensitivity, with an unfavorable KELIMTM score \< 1.0, and a disease not amenable to complete interval debulking surgery) after 3 cycles of standard neo-adjuvant chemotherapy.

Time frame: From the date of randomization until death due to any cause, assessed up to 5 years

Secondary Outcomes

Percentage of patients operated with late complete debulking surgery, regardless of the number of chemotherapy cycles received

To compare the efficacy, in term of percentage of patients operated with late complete debulking surgery, between the salvage weekly dose-dense regimen and the standard regimen, regardless of the number of chemotherapy cycles received.

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

Overall response rate according to RECIST V1.1 in the whole population

To compare the efficacy of the salvage weekly dose-dense regimen with those of the standard regimen in terms of: * Radiological response after 3 cycles of treatment, based on the best radiological response using RECIST criteria * Progression-free survival

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

Progression-free survival in the whole population

To compare the efficacy of the salvage weekly dose-dense regimen with those of the standard regimen in terms of: • Radiological response after 3 cycles of treatment, based on the best radiological response using RECIST criteria

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

Percentage of patients treated with a subsequent maintenance treatment with a PARP inhibitor (%) in the whole population

To assess the impact of the adjustment to the salvage weekly dose-dense regimen on the rate of subsequent prescription of PARP inhibitors (since these drugs are indicated in patients with complete or partial response to platinum-based chemotherapy) in terms of survival.

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

Progression-free survival and overall survival in these patients compared to those not treated with PARP inhibitor

To assess the impact of the adjustment to the salvage weekly dose-dense regimen on the rate of subsequent prescription of PARP inhibitors (since these drugs are indicated in patients with complete or partial response to platinum-based chemotherapy) in terms of survival.

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

To assess the impact of adding bevacizumab to chemotherapy (salvage or standard arm) on the efficacy outcomes In the population of patients treated with bevacizumab: - Overall response rate according to RECIST V1.1

To assess the impact of adding bevacizumab to chemotherapy (salvage or standard arm) on the efficacy outcomes

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

Adverse events graded according to the NCI Common Terminology Criteria Adverse Event Version 5.0

To compare the safety profiles of the salvage weekly dose-dense chemotherapy arm with those of the standard 3-weekly carboplatin-paclitaxel with/without bevacizumab, based on the observed adverse-events

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

To assess the impact of adding bevacizumab to chemotherapy on the efficacy outcomes In the population of patients treated with bevacizumab: - Progression-free survival & overall survival according to RECIST V1.1

To assess the impact of adding bevacizumab to chemotherapy (salvage or standard arm) on the efficacy outcomes

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

To assess the impact of adding bevacizumab to chemotherapy on the efficacy outcomes In the population of patients treated with bevacizumab: - Percentage of patients operated with a late complete debulking surgery (%)

To assess the impact of adding bevacizumab to chemotherapy (salvage or standard arm) on the efficacy outcomes

Time frame: from the date of randomization until objective tumor progression based on RECIST 1.1, or death due to any cause, whichever occurs first assessed up to 3 years

Locations

ICO Paul Papin, Angers, France

CH d'Avignon, Avignon, France

Sainte-Catherine Institut du Cancer Avignon-Provence, Avignon, France

Hôpital de la Côte Basque, Bayonne, France

CHRU Besançon - Hôpital Jean Minjoz, Besançon, France

Institut Bergonié, Bordeaux, France

CHU de BREST - Hôpital Cavale Blanche, Brest, France

Centre François Baclesse, Caen, France

Centre d'Oncologie et de Radiothérapie 37 (ROC37), Chambray-lès-Tours, France

Centre Hospitalier de Cholet, Cholet, France

Centre Jean Perrin, Clermont-Ferrand, France

Centre Hospitalier Alpes Leman, Contamine-sur-Arve, France

Centre Hospitalier Intercommunal de Créteil, Créteil, France

Centre Georges François Leclerc, Dijon, France

CHU de Dijon, Dijon, France

Groupe Hospitalier Mutualiste de Grenoble, Grenoble, France

Hôpital André Mignot, Le Chesnay, France

CHRU de Lille, Lille, France

Centre Oscar Lambret, Lille, France

CHU de Limoges - Hôpital Dupuytren, Limoges, France

Hôpital de la Croix Rousse, Lyon, France

Centre Léon Bérard, Lyon, France

Hôpital Privé Jean Mermoz, Lyon, France

Hôpital de la Timone, Marseille, France

CHRU de Montpellier - Hôpital Saint-Eloi, Montpellier, France

ICM Val d'Aurelle, Montpellier, France

Centre Azuréen de Cancérologie, Mougins, France

Hôpital Privé du Confluent, Nantes, France

Centre Antoine Lacassagne, Nice, France

Institut de Cancérologie du Gard - CHU de Nîmes, Nîmes, France

Groupe Hospitalier Diaconesses - Croix Saint-Simon, Paris, France

Hôpital Cochin, Paris, France

Hôpital Européen George Pompidou, Paris, France

Institut Curie, Paris, France

Centre Hospitalier Général de Pau, Pau, France

HCL - Centre Hospitalier Lyon Sud, Pierre-Bénite, France

Hôpital de Poissy-Saint-Germain-en-Laye, Poissy, France

Institut Jean Godinot, Reims, France

Centre Eugène Marquis, Rennes, France

Hôpital Privé de la Loire, Saint-Etienne, France

Institut de Cancérologie de l'Ouest - ICO, Saint-Herblain, France

CHU Saint-Etienne - Pôle de Cancérologie, Saint-Priest-en-Jarez, France

ICANS - Institut de cancérologie Strasbourg Europe, Strasbourg, France

CHU Strasbourg - Hôpital de Hautepierre, Strasbourg, France

Hôpital Foch, Suresnes, France

Hôpitaux du Léman - site Thonon-les-Bains, Thonon-les-Bains, France

Oncopole Claudius Régaud - IUCT Oncopole, Toulouse, France

Clinique Pasteur, Toulouse, France

Centre Hospitalier de Valence, Valence, France

Gustave Roussy, Villejuif, France

Azienda Ospedaliero-Universitaria Ss.Antonio E Biagio E C.Arrigo Alessandria, Alessandria, Italy

Azienda Ospedaliero-Universitaria Di Bologna IRCCS Istituto Di Ricerca E Di Cura A Carattere Scientifico, Bologna, Italy

Careggi University Hospital, Florence, Italy

Alessandro Manzoni Hospital, Lecco, Italy

Istituto Europeo Di Oncologia S.r.l., Milan, Italy

Azienda Ulss 3 Serenissima, Venice, Italy

The University of Tokyo Hospital, Bunkyō City, Japan

Fukushima Medical University Hospital, Fukushima, Japan

Saitama Medical University International Medical Center, Hidaka, Japan

Hirosaki University Hospital, Hirosaki, Japan

The Jikei University Kashiwa Hospital, Kashiwa, Japan

St. Marianna University Hospital, Kawasaki, Japan

Dokkyo Medical University Saitama Medical Center, Koshigaya, Japan

Kurume University Hospital, Kurume, Japan

Nagoya University Hospital, Nagoya, Japan

Kindai University Hospital, Sayama, Japan

Tohoku University Hospital, Sendai, Japan

Osaka Medical and Pharmaceutical University Hospital, Takatsuki, Japan

The Cancer Institute Hospital Of JFCR, Tokyo, Japan

The Jikei University Daisan Hospital, Tokyo, Japan

The Jikei University Hospital, Tokyo, Japan

The Jikei University Katsushika Medical Center, Tokyo, Japan

Linked Papers

2025-12-23

SALVOVAR: a pragmatic randomized phase III trial comparing the SALVage weekly dose-dense regimen to the standard 3-weekly regimen in patients with poor prognostic OVARian cancers

Background: Patients with epithelial ovarian cancer (EOC) receiving neoadjuvant platinum-based chemotherapy (NACT) who remain ineligible for complete interval cytoreductive surgery (ICS) due to poor chemosensitivity (CA-125 KELIM™ score &lt;1.0) have a poor prognosis (~20% 5-year survival). A weekly dose-dense carboplatin–paclitaxel regimen may improve outcomes in this high-risk subgroup. Objectives: To demonstrate the superiority of a salvage weekly dose-dense carboplatin–paclitaxel regimen over continuation of the standard 3-weekly regimen in poor-prognosis EOC patients after 3–4 cycles of standard NACT. Design: SALVOVAR is a pragmatic, open-label, multicenter, international, randomized phase III trial. Methods and analysis: Patients with stages III–IV high-grade EOC are eligible if they present (1) an unfavorable standardized KELIM score &lt;1.0, and (2) a disease not amenable to complete ICS after 3–4 cycles of standard 3-weekly carboplatin–paclitaxel. Patients are randomized (1:1) to either the experimental arm (dose-dense carboplatin AUC5 day 1 plus paclitaxel 80 mg/m 2 on days 1, 8, and 15, every 3 weeks) or the control arm (continuation of the standard regimen) for 3 cycles. Bevacizumab use is allowed at investigator discretion. Stratification factors include planned bevacizumab administration, BRCA mutation status, and KELIM strata. The two co-primary endpoints are (1) improvement in late complete cytoreduction rates (from 5% in the control arm to 20% in the experimental arm), and (2) overall survival (target hazard-ratio, 0.61). Total 250 patients will be randomized. Secondary endpoints include objective response rate, progression-free survival, and safety. Additional planned analyses include quality-of-life, cost-effectiveness, surgical standardization, human sciences, and biology studies. Ethics: The protocol was approved by the national ethics committee and health authorities. Discussion: SALVOVAR will evaluate whether chemotherapy densification improves outcomes in poorly chemosensitive advanced EOC. If positive, this pragmatic strategy could be implemented in large-scale studies, independent of resource setting. Trial registration: ClinicalTrials.gov NCT06476184 (June-2024). Available at: https://clinicaltrials.gov/study/NCT06476184

Linked Investigators

Utility of Adjusting Chemotherapy Dose & Dosing Schedule With the SALVage Weekly Dose-dense Regimen in Patients With Poor Prognostic OVARian Cancers Based on the Tumor Unfavorable Primary Chemosensitivity and Incomplete Debulking Surgery