Recombinant replication-defective simian (chimpanzee-derived) group C adenovirus serotype 155 viral vector and a Modified Vaccinia Ankara virus (MVA) construct, both encoding a fusion of sequences derived from two hepatitis B virus (HBV) protein antigens
Recombinant replication-defective simian (chimpanzee-derived) group C adenovirus viral vector construct engineered to express three proteins from the Respiratory Syncytial Virus (RSV)
The study involves two GMOs. The GMO ChAd155-hIi-HBV is a viral suspension of a recombinant replication-defective simian (chimpanzee-derived) group C adenovirus serotype 155 (ChAd155) viral vector encoding a fusion of sequences derived from two hepatitis B virus (HBV) protein antigens. The GMO MVA-HBV is a modified vaccinia virus Ankara vector (MVA) encoding a fusion of sequences derived from two hepatitis B virus (HBV) protein antigens.
The nOPV2 candidate strains include different combinations of 5 distinct modified regions of the Sabin-2 genome, including changes to the RNA sequence in the 5’ untranslated region of polio genome (5’ UTR), the capsid protein coding region (P1), the non-structural protein 2C, and the polymerase 3D. Of these modifications, only the changes to polymerase 3D result in a change in the amino acid sequence. The rest of the modifications aim to stabilize the genetic sequence against reversion in either the 5’ UTR or capsid regions.
