Study stopped for business reasons and not for any safety reasons.

The purpose of this protocol is to provide a mechanism to collect Long Term Clinical Data from those babies who participated in the primary Study 64,185-06-2(W)(WS)(ISNHP) "An Open-Label Study Of The Safety And Clinical Pharmacology Of Stanate® In Infants At-Risk For Exchange Transfusion".

The purpose of this protocol is to provide a mechanism to collect Clinical Data from those babies who participated in the primary Study 64,185-06-2(W)(WS)(ISNHP) "An Open-Label Study Of The Safety And Clinical Pharmacology Of Stanate® In Infants At-Risk For Exchange Transfusion". Data on long-term impact of Stannsoporfin on the physical, neurological, neurodevelopmental, biochemical, metabolic and hematopoietic profiles of the children will be collected at 9 and 18 months, 3, 6 and 9 years after Stannsoporfin administration

Inclusion Criteria:

• All children who have been enrolled and received Stanate® Injection/Placebo in Study Protocol 64,185-06-2(W)(WS)(ISNHP) are eligible for this follow-up.

Exclusion Criteria:

-

All children who have been enrolled and received Stanate® Injection/Placebo in Study Protocol 64,185-06-2(W)(WS)(ISNHP) are eligible for this follow-up.