Study: NCT00606073

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Universal IVF Medium + ISM1 Medium
Description: Sibling oocytes will be equally divided and incubated separately in different 4-well culture dishes containing either IVF medium or ISM1 Medium and while ICSI will be returned to the same culture dish following injection. Fertilization assessment will be performed approximately after 15-20 hours for standard IVF and 12-18 hours post ICSI performance. After assessment, fertilized oocytes from different culture media will be transferred separately into fresh culture dishes containing ISM1 medium only. The zygotes will be incubated until embryo transfer on day 2 or 3. Embryo quality will be assessed according to the morphology of blastomeres as well as it's developmental stage.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Universal IVF Medium + ISM1 Medium
Description: Sibling oocytes will be equally divided and incubated separately in different 4-well culture dishes containing either IVF medium or ISM1 Medium and while ICSI will be returned to the same culture dish following injection. Fertilization assessment will be performed approximately after 15-20 hours for standard IVF and 12-18 hours post ICSI performance. After assessment, fertilized oocytes from different culture media will be transferred separately into fresh culture dishes containing ISM1 medium only. The zygotes will be incubated until embryo transfer on day 2 or 3. Embryo quality will be assessed according to the morphology of blastomeres as well as it's developmental stage.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Universal IVF Medium + ISM1 Medium
Description: Sibling oocytes will be equally divided and incubated separately in different 4-well culture dishes containing either IVF medium or ISM1 Medium and while ICSI will be returned to the same culture dish following injection. Fertilization assessment will be performed approximately after 15-20 hours for standard IVF and 12-18 hours post ICSI performance. After assessment, fertilized oocytes from different culture media will be transferred separately into fresh culture dishes containing ISM1 medium only. The zygotes will be incubated until embryo transfer on day 2 or 3. Embryo quality will be assessed according to the morphology of blastomeres as well as it's developmental stage.

Intervention type: OTHER
Group type: ACTIVE_COMPARATOR
Intervention: Universal IVF Medium + ISM1 Medium
Description: Sibling oocytes will be equally divided and incubated separately in different 4-well culture dishes containing either IVF medium or ISM1 Medium and while ICSI will be returned to the same culture dish following injection. Fertilization assessment will be performed approximately after 15-20 hours for standard IVF and 12-18 hours post ICSI performance. After assessment, fertilized oocytes from different culture media will be transferred separately into fresh culture dishes containing ISM1 medium only. The zygotes will be incubated until embryo transfer on day 2 or 3. Embryo quality will be assessed according to the morphology of blastomeres as well as it's developmental stage.