An Observational Study of Gonal-F Filled by Mass Pens in Multifollicular Stimulation Prior to In-vitro Fertilization (IVF) or Intracytoplasmic Sperm Injection (ICSI)

2014-08-27 03:15:37 | BioPortfolio


This is a prospective, observational study in women using Gonal-F filled-by-mass (FbM) in ovarian hyperstimulation as part of their in-vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) treatment at infertility clinics in Korea. The purpose of this study is to assess Gonal-F FbM in a practical setting encompassing all subject groups and local practices.


Follicle stimulating hormone (FSH) is a complex hetero-dimeric glycoprotein used therapeutically to stimulate follicular development in the ovary. The technical advance of recombinant technology to manufacture FSH has resulted in a biochemically pure FSH preparation with high batch-to-batch consistency. The protein content can be reliably quantified in mass units by size exclusion high performance liquid chromatography. These developments have enabled recombinant human FSH follitropin alfa (Gonal-F) to be filled and released in vials on the basis of mass with a variability of only ±2%. In one study, the FbM batches appeared to deliver a more consistent therapeutic effect than the filled-by-bioassay batches. In another randomized trial, self-administration and subjects' satisfaction were significantly higher in the pen device group than the conventional syringe group. Local reactions at injection sites and pain were significantly higher in the conventional syringe group than in the pen device group. The authors concluded that the pen device of Gonal-F is safe, convenient, and less painful, with more subject satisfaction than the conventional syringe form.

This prospective, multicentric, observational study is planned in women using Gonal-F FbM in ovarian hyperstimulation as part of their IVF/ICSI treatment at infertility clinics in Korea. Subjects fulfilling the eligibility criteria shall be enrolled in a consecutive manner over a 9-month period (approximately 1500 subjects).


Primary objective:

- To assess the effectiveness Gonal-F FbM

Secondary objectives:

- To assess the safety and subject convenience of Gonal-F FbM in a normal clinical practice over a period of 9 months

Study Design

Observational Model: Case-Only, Time Perspective: Prospective


Multifollicular Stimulation


Gonal-F (Follitropin alfa)


Maria Fertility Hospital
Korea, Republic of




Merck KGaA

Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:15:37-0400

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Medical and Biotech [MESH] Definitions

A recombinant alfa interferon consisting of 165 amino acids with arginine at positions 23 and 34. It is used extensively as an antiviral and antineoplastic agent.

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Stimulation of the brain, which is self-administered. The stimulation may result in negative or positive reinforcement.

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