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OncoMatch/Clinical Trials/NCT05601700

Letrozole for Estrogen/Progesterone Receptor Positive Low-grade Serous Epithelial Ovarian Cancer (LEPRE Trial)

Is NCT05601700 recruiting? Yes, currently enrolling (May 2026). This Phase 3 trial studies multiple treatments including Letrozole tablets and carboplatin AUC 5 and paclitaxel 175 mg/m2 for carcinoma, ovarian epithelial.

Phase 3RecruitingEnte Ospedaliero Ospedali GallieraNCT05601700Data as of May 2026

Treatment: Letrozole tablets · carboplatin AUC 5 and paclitaxel 175 mg/m2This is an Italian, multicenter, randomized, open-label phase III trial which will evaluate if Letrozole is superior to standard adjuvant chemotherapy in patients with hormone receptor positive low-grade serous epithelial carcinoma of the ovary (LGSCO). The hypothesis is that letrozole will significantly prolong median progression free survival (PFS) compared with the standard chemotherapy treatment, namely carboplatin AUC 5 and paclitaxel 175 mg/m2.

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Extracted eligibility criteria

Cancer type

Ovarian Cancer

Biomarker criteria

Required: ESR1 immunohistochemically determined positivity (≥ 10%) for ER expression (≥ 10%)

Immunohistochemically determined positivity (≥ 10%) for ER and/or PgR expression

Required: PR (PGR) immunohistochemically determined positivity (≥ 10%) for PgR expression (≥ 10%)

Immunohistochemically determined positivity (≥ 10%) for ER and/or PgR expression

Disease stage

Required: Stage III, IV

Grade: 1

Performance status

ECOG 0–1(Restricted strenuous activity)

Prior therapy

Must have received: surgery — upfront

Patients must have undergone an upfront surgery with maximal cytoreductive effort, with either optimal or suboptimal residual disease status.

Cannot have received: neoadjuvant chemotherapy

Neoadjuvant chemotherapy or radiotherapy for the treatment of this disease

Cannot have received: radiotherapy

Neoadjuvant chemotherapy or radiotherapy for the treatment of this disease

Cannot have received: hormonal therapy

Previous hormonal therapy for the treatment of this disease

Lab requirements

Blood counts

Absolute neutrophil count (ANC) ≥ 1500/mm3; Platelets ≥ 100,000/mm3; Hemoglobin ≥ 10.0 g/dL

Kidney function

Serum creatinine ≤ 1.5 x ULN

Liver function

Total bilirubin ≤ 1.5 x ULN; ALT and AST ≤ 3.0 x ULN; Alkaline phosphatase ≤ 2.5 x ULN; Albumin ≥ 2.8 g/dL

Adequate bone marrow, hepatic and renal functions as defined below: * Absolute neutrophil count (ANC) ≥ 1500/mm3 * Platelets ≥ 100,000/mm3 * Hemoglobin ≥ 10.0 g/dL * Total bilirubin ≤ 1.5 x Upper Limit of Normal (ULN) * ALT and AST ≤ 3.0 x ULN * Alkaline phosphatase ≤ 2.5 x ULN * Albumin ≥ 2.8 g/dL * Serum creatinine ≤ 1.5 x ULN.

Structured fields extracted by AI. May contain errors — verify against the official protocol.

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