Among studies with medium-term follow-up (3-5.5 years), no significant increase in recurrence or mortality attributable to FP was identified; long-term data beyond 5 years remain sparse. Substantial heterogeneity precluded meta-analysis; all synthesis is narrative. Standardized outco reporting and larger prospective subtype-stratified studies are required to establish precision oncofertility recommendations.

P1, N=30, Recruiting, Northwestern University | Not yet recruiting --> Recruiting

P2/3, N=90, Completed, Tehran University of Medical Sciences

Letrozole-associated panuveitis has not previously been reported. This case highlights the importance of detailed medication history as well as the need for interdisciplinary collaboration when managing drug-induced uveitis. Early recognition and appropriate therapy can result in favorable visual outcomes.

HR-pQCT was superior to DXA in detecting microarchitectural deterioration in women with breast cancer. This pilot study emphasizes the need for larger prospective studies in Indian cohorts.

Obesity was associated with lower ORR with letrozole alone, whereas this association was not observed in patients treated with taselisib.

P1, N=30, Not yet recruiting, Northwestern University | N=75 --> 30

Despite aggressive critical care management, she experienced cardiac arrest and died. This case may represent the first reported fatal occurrence of anastrozole-associated TLS in advanced breast cancer, underscoring the need for vigilance for TLS even with hormonal agents traditionally considered low-toxicity.

The present study evaluated berberine-gallic acid (BBR-GAL) and berberine-gentisic acid (BBR-GEN) using an integrated in silico and in vivo approach in a letrozole-induced PCOS mouse model...By restoring hepatic insulin signaling through modulation of the adenosine monophosphate-activated protein kinase-insulin receptor substrate-1/phosphatidylinositol 3-kinase/protein kinase B axis and attenuating ovarian inflammation, these formulations provide mechanistic validation for improved therapeutic efficacy. These findings indicate that crystal-engineered BBR could be a useful approach in improving the endocrine-metabolic phenotypes of preclinical PCOS.

Therefore, this study investigates the ameliorative effects of total flavonoids from Rubus chingii Hu (RHF) on HPO axis function and inflammatory response in a rat model of PCOS induced by letrozole...In ovarian tissue, RHF downregulated the protein and mRNA expression of NLRP3, caspase-1, the N-terminal fragment of gasdermin D (GSDMD-NT), IL-18, and IL-1β, and lowered the mRNA levels of IL-6 and TNF-α, thereby attenuating both systemic and local ovarian inflammatory responses. Taken together, these findings demonstrate that RHF confers protective effects in PCOS rats, which are associated with the amelioration of HPO axis function and suppression of inflammatory responses.

P=N/A, N=400, Completed, Sohag University

We investigated whether DHED could prevent side effects associated with the aromatase inhibitor letrozole in a primate model of aging...Here, we show that a brain-selective estrogen therapy administered orally via the prodrug DHED substantially increases estrogen levels in the marmoset brain without affecting the periphery and normalizes impairments in working memory, hippocampal neuronal excitability and sleep induced by aromatase inhibition. These findings in a translational primate model represent a significant advance for women's health by positioning DHED as a non-invasive, safe and efficient novel hormone therapy to improve quality of life of women with ER+ breast cancers.