No. In fact, regional human rights treaties complement the international system of human rights protection of the United Nations. If they entail legally binding judicial enforcement mechanisms, they even offer a more effective way of protection human rights.
Core regional instruments are the European Convention for the Protection of Human Rights and Fundamental Freedoms (ECHR) of 1950, the American Convention on Human Rights (ACHR) of 1969, and the African Charta on Human and Peoples’ Rights of 1981 (Banjul Charter). The Arab Charter on Human Rights which entered into force in 2008 has not yet set up an Arab Court for Human Rights. In Asia, the Intergovernmental Human Rights Commission of ASEAN is currently working on the draft of a regionalhuman rights declaration. (Press Release of the AICHR)
Deutsche Geschellschaft für Internationale Zusammenarbeit (GIZ) (2013): Promising Practices - On a human rights-based approach in German development cooperation. GIZ, 26 p.
Deutsche Geschellschaft für Internationale Zusammenarbeit (GIZ) (2011): National Human Rights Institutions. GIZ, 10 p.