New Study: Immunotherapy May Restore Fertility in Some Women

A small but significant study from Karolinska Institutet, published in NEJM Evidence, indicates that immunotherapy might successfully restore fertility in certain women diagnosed with premature ovarian insufficiency (POI). This condition, affecting over 3% of women worldwide, involves the ovaries ceasing function before age 40 and often leads to infertility.

The research involved 12 women aged 18-35 with autoimmune-related POI. Following treatment with rituximab, a drug targeting B cells, six of the ten participants who completed the study showed ovarian follicle development. Clinicians were able to retrieve mature eggs from five women.

Notably, three women in the study achieved successful pregnancies and delivered healthy babies. These outcomes suggest that dormant egg reserves might exist in women with premature menopause and could potentially be reactivated by suppressing underlying autoimmune responses. Experts caution that more rigorous evidence and specific patient selection are needed before this immunotherapy becomes a standard treatment.