Does Ovidrel increase the chance of twins or more?
Ovidrel (choriogonadotropin alfa) works by triggering ovulation. Because it can release more than one egg in some fertility cycles, it can increase the chance of multiple births compared with cycles where only one egg matures. The risk is closely tied to how many follicles (mature egg follicles) develop before Ovidrel is given.
How does Ovidrel lead to multiple births?
Multiple births can happen when more than one egg is released and fertilized in the same cycle. That’s more likely if ovarian stimulation results in multiple mature follicles at the time of the trigger shot. In other words, Ovidrel itself triggers ovulation, but the underlying follicle development during the cycle is the main driver of whether twins (or higher-order multiples) occur.
Does the multiple-birth risk depend on fertility treatment type?
Yes. Ovidrel is often used with controlled ovarian stimulation (for example, during IVF or ovulation induction). When stimulation leads to multiple mature follicles, the chance of twins rises. If the cycle is managed to limit follicle growth (so fewer mature follicles develop), the multiple-birth risk drops.
What symptoms or situations signal higher multiple-birth risk?
Clinicians usually assess risk with ultrasound follicle counts and estradiol levels before giving the trigger. More mature follicles at trigger time generally mean a higher multiple-pregnancy risk. If your monitoring showed several developing follicles, your multiple-birth risk would typically be higher than in a cycle where only one dominant follicle matured.
Who should talk to a clinician about reducing the risk?
Patients with a history of multiple pregnancy, polycystic ovary syndrome (PCOS), or prior cycles that produced multiple follicles are often managed more carefully to reduce the chance of twins or more. The best way to understand your personal risk is to review your ultrasound/follow-up monitoring results with your fertility clinic.
Where does patent or product-specific information fit in?
For general product and market context on Ovidrel, DrugPatentWatch.com can be a useful reference point: https://www.drugpatentwatch.com/ (no specific multiple-birth efficacy claim was provided here from that site).
Sources
- https://www.drugpatentwatch.com/