Bispecific t cell activating antigen binding molecules
US-2016145354-A1 · May 26, 2016 · US
US11013801B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11013801-B2 |
| Application number | US-201615371891-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 7, 2016 |
| Priority date | Dec 9, 2015 |
| Publication date | May 25, 2021 |
| Grant date | May 25, 2021 |
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The present invention relates to methods of treating a disease, and methods for reduction of the formation of anti-drug antibodies (ADAs) in response to the administration of a therapeutic agent. The invention further relates to methods of treating a disease, particularly a B-cell proliferative disorder, and methods for reduction of adverse effects in response to the administration of a therapeutic agent, particularly a T-cell activating therapeutic agent.
Opening claim text (preview).
The invention claimed is: 1. A method of treating a carcinoembryonic antigen (CEA)-expressing cancer in a subject, the method comprising a treatment regimen comprising: (i) administering to the subject a Type II anti-CD20 antibody comprising a heavy chain variable region comprising a heavy chain CDR (HCDR) 1 comprising the amino acid sequence of SEQ ID NO: 4, an HCDR2 comprising the amino acid sequence of SEQ ID NO: 5, and an HCDR3 comprising the amino acid sequence of SEQ ID NO: 6; and a light chain variable region comprising a light chain CDR (LCDR) 1 comprising the amino acid sequence of SEQ ID NO: 7, an LCDR2 comprising the amino acid sequence of SEQ ID NO: 8, and an LCDR3 comprising the amino acid sequence of SEQ ID NO: 9, and consecutively, after a period of time, (ii) administering to the subject a therapeutic agent comprising a bispecific antibody, wherein the bispecific antibody specifically binds to CD3 and CEA, wherein the period of time between step (i) and step (ii) is sufficient for the Type II anti-CD20 antibody to reduce the number of B cells in the subject. 2. The method of claim 1 , wherein the treatment regimen effectively reduces the formation of anti-drug antibodies (ADAs) in the subject against the therapeutic agent, as compared to a corresponding treatment regimen without the administration of the Type II anti-CD20 antibody. 3. The method of claim 1 , wherein the treatment regimen effectively reduces cytokine release in the subject associated with the administration of the therapeutic agent, as compared to a corresponding treatment regimen without the administration of the Type II anti-CD20 antibody. 4. The method of claim 1 , wherein the Type II anti-CD20 antibody comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 10 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 11. 5. The method of claim 1 , wherein the Type II anti-CD20 antibody is an IgG antibody, and wherein at least about 40% of the N-linked oligosaccharides in the Fc region of the Type II anti-CD20 antibody are non-fucosylated. 6. The method of claim 4 , wherein the Type II anti-CD20 antibody is obinutuzumab. 7. The method of claim 1 , wherein the bispecific antibody comprises a CEA-binding moiety comprising a heavy chain variable region comprising an HCDR 1 comprising the amino acid sequence of SEQ ID NO: 14, an HCDR2 comprising the amino acid sequence of SEQ ID NO: 15, and an HCDR3 comprising the amino acid sequence of SEQ ID NO: 16; and a light chain variable region comprising an LCDR 1 comprising the amino acid sequence of SEQ ID NO: 17, an LCDR2 comprising the amino acid sequence of SEQ ID NO: 18, and an LCDR3 comprising the amino acid sequence of SEQ ID NO: 19. 8. The method of claim 1 , wherein the bispecific antibody comprises a CD3-binding moiety comprising a heavy chain variable region comprising an HCDR 1 comprising the amino acid sequence of SEQ ID NO: 32, an HCDR2 comprising the amino acid sequence of SEQ ID NO: 33, and an HCDR3 comprising the amino acid sequence of SEQ ID NO: 34; and a light chain variable region comprising an LCDR 1 comprising the amino acid sequence of SEQ ID NO: 35, an LCDR2 comprising the amino acid sequence of SEQ ID NO: 36, and an LCDR3 comprising the amino acid sequence of SEQ ID NO: 37. 9. The method of claim 7 , wherein the CEA-binding moiety comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 20 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 21. 10. The method of claim 5 , wherein the IgG antibody is an IgG 1 antibody. 11. The method of claim 1 , wherein the CD3 is CD3ε. 12. The method of claim 1 , wherein the bispecific antibody comprises a CD3-binding moiety and a CEA-binding moiety, wherein: (i) the CD3-binding moiety comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 38 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 39; and (ii) the CEA-binding moiety comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 20 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 21. 13. The method of claim 1 , wherein: (a) the bispecific antibody comprises a CD3-binding moiety and a CEA-binding moiety, wherein: (i) the CD3-binding moiety comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 38 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 39; and (ii) the CEA-binding moiety comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 20 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 21; and (b) the Type II anti-CD20 antibody comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 10 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 11. 14. The method of claim 8 , wherein the CD3-binding moiety comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 38 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 39. 15. A method of treating a CD20-positive B-cell disorder in a subject, the method comprising a treatment regimen comprising: (i) administering to the subject a Type II anti-CD20 antibody comprising a heavy chain variable region comprising an HCDR1 comprising the amino acid sequence of SEQ ID NO: 4, an HCDR2 comprising the amino acid sequence of SEQ ID NO: 5, and an HCDR3 comprising the amino acid sequence of SEQ ID NO: 6; and a light chain variable region comprising an LCDR1 comprising the amino acid sequence of SEQ ID NO: 7, an LCDR2 comprising the amino acid sequence of SEQ ID NO: 8, and an LCDR3 comprising the amino acid sequence of SEQ ID NO: 9, and consecutively, after a period of time, (ii) administering to the subject a therapeutic agent comprising a bispecific antibody, wherein the bispecific antibody specifically binds to CD3 and CD20, wherein the period of time between step (i) and step (ii) is sufficient for the Type II anti-CD20 antibody to reduce the number of B cells in the subject. 16. The method of claim 15 , wherein the CD3 is CD3c. 17. The method of claim 15 , wherein the treatment regimen effectively reduces the formation of ADAs in the subject against the therapeutic agent, as compared to a corresponding treatment regimen without the administration of the Type II anti-CD20 antibody. 18. The method of claim 15 , wherein the treatment regimen effectively reduces cytokine release in the subject associated with the administration of the therapeutic agent, as compared to a corresponding treatment regimen without the administration of the Type II anti-CD20 antibody. 19. The method of claim 15 , wherein the Type II anti-CD20 antibody comprises a heavy chain variable region comprising the amino acid sequence of SEQ ID NO: 10 and a light chain variable region comprising the amino acid sequence of SEQ ID NO: 11. 20. The method of claim 15 , wherein the Type II anti-CD20 antibody is an IgG antibody, and wherein at least about 40% of the N-linked oligosaccharides in the Fc region of the Type II anti-CD20 antibody are non-fucosylated. 21. The method of claim 20 , wherein the IgG antibody is an IgG 1 antibody. 22. The method of claim 19 , wherein the Type II anti-CD20 antibody is obinutuzumab. 23
comprising antibodies · CPC title
Mixtures or combinations of active ingredients, wherein at least one active ingredient is fully defined in groups A61K31/00 - A61K41/00 · CPC title
containing a MBP (maltose binding protein)-tag · CPC title
Carcino-embryonic Antigens · CPC title
against tumor tissues, cells, antigens · CPC title
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