# Efficacy and Safety of Mirvetuximab Soravtansine in Patients With Platinum-Resistant Ovarian Cancer With High Folate Receptor Alpha Expression: Results From the SORAYA Study

Source: https://onco.cc/key-papers/paper-mirvetuximab-soravtansine-ovarian-j-clin-oncol-2023/  
OnCo record `paper-mirvetuximab-soravtansine-ovarian-j-clin-oncol-2023` (Key paper). Data CC BY-NC 4.0, attribute "Data from OnCo (onco.cc)"; commercial use needs a licence.

## TL;DR

Phase 2 or 3 results paper on Mirvetuximab soravtansine in Ovarian cancer, in Journal of Clinical Oncology (2023), one of the most cited Europe PMC records with Mirvetuximab soravtansine in its title.

## Summary

Purpose: Single-agent chemotherapies have limited activity and considerable toxicity in patients with platinum-resistant epithelial ovarian cancer (PROC). Mirvetuximab soravtansine (MIRV) is an antibody-drug conjugate targeting folate receptor α (FRα). SORAYA is a single-arm, phase II study evaluating efficacy and safety of MIRV in patients with PROC.

Methods: SORAYA enrolled FRα-high patients with PROC who had received one to three prior therapies, including required bevacizumab. The primary end point was confirmed objective response rate (ORR) by investigator; duration of response was the key secondary end point.

Results: One hundred six patients were enrolled; 105 were evaluable for efficacy. All patients had received prior bevacizumab, 51% had three prior lines of therapy, and 48% received a prior poly ADP-ribose polymerase inhibitor. Median follow-up was 13.4 months. ORR was 32.4% (95% CI, 23.6 to 42.2), including five complete and 29 partial responses. The median duration of response was 6.9 months (95% CI, 5.6 to 9.7). In patients with one to two priors, the ORR by investigator was 35.3% (95% CI, 22.4 to 49.9) and in patients with three priors was 30.2% (95% CI, 18.3 to 44.3). The ORR by investigator was 38.0% (95% CI, 24.7 to 52.8) in patients with prior poly ADP-ribose polymerase inhibitor exposure and 27.5% (95% CI, 15.9 to 41.7) in those without. The most common treatment-related adverse events (all grade and grade 3-4) were blurred vision (41% and 6%), keratopathy (29% and 9%), and nausea (29% and 0%). Treatment-related adverse events led to dose delays, reductions, and discontinuations in 33%, 20%, and 9% of patients, respectively.

Conclusion: MIRV demonstrated consistent clinically meaningful antitumor activity and favorable tolerability and safety in patients with FRα-high PROC who had received up to three prior therapies, including bevacizumab, representing an important advance for this biomarker-selected population.

Indexed on Europe PMC as PubMed record 36716407 (DOI 10.1200/jco.22.01900). Its title names Mirvetuximab soravtansine and its text names Ovarian cancer; PubMed types it as a clinical trial report (Clinical Trial, Phase II, Research Support, Non-U.S. Gov't, research-article). It was matched automatically to the idea "Sequence folate-receptor ADCs by payload class" and no figure has been checked by an editor.

## Fields

- Kind: Key paper
- Last checked: 2026-09-22
- Tags: europepmc-ingest
- Journal: Journal of Clinical Oncology
- Year: 2023
- DOI: 10.1200/jco.22.01900
- Authors: Matulonis UA, Lorusso D, Oaknin A, et al.
- What it means: One of the most cited trial reports Europe PMC returns for Mirvetuximab soravtansine in Ovarian cancer, so it is a natural first reading for anyone weighing the idea it is linked from. The record was linked automatically by title and abstract; read the abstract above and the paper itself before relying on any figure.
- Caveats: Matched by Mirvetuximab soravtansine in the title and Ovarian cancer in the title or abstract of the Europe PMC record; the summary reproduces the record's abstract and no figure has been verified against the full paper.; Chosen as a phase 2 or 3 report by the record's publication type or its own wording, not by reading the paper.

## Sources

- J Clin Oncol 2023: https://doi.org/10.1200/jco.22.01900
- PubMed: https://pubmed.ncbi.nlm.nih.gov/36716407/
- Europe PMC: https://europepmc.org/article/MED/36716407

## Connected records

- journals: [Journal of Clinical Oncology](https://onco.cc/journals/jco/)
- ideas: [Sequence folate-receptor ADCs by payload class](https://onco.cc/ideas/idea-fra-adc-sequencing-ovarian/)

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