Abstract: The invention provides immunoconjugates of Formula I comprising an antibody linked by conjugation to one or more STING agonist moieties. The invention also provides STING agonist-linker intermediate compounds comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The invention provides immunoconjugates of Formula (I): Ab-[L-D]p, comprising an antibody linked by conjugation to one or more STING agonist moieties. The invention also provides STING agonist-linker intermediate compounds comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: STING pathway agonism has emerged as a potential therapeutic mechanism to stimulate an innate anti-tumor immune response. While in principle systemic administration of a STING agonist would have many therapeutic benefits, including the delivery of STING to all tumor lesions, such an approach may be limited by toxicity. Antibody-drug conjugates (ADCs) constitute a proven therapeutic modality that is ideally suited to enable systemic administration without associated toxicity concerns via a targeted delivery strategy. Herein, we demonstrate that systemically administered STING agonist ADCs have greater anti-tumor activity as well as greatly improved tolerability compared to an intravenously (IV) administered, unconjugated (free) agonist. We generated novel STING agonist ADCs by leveraging our Immunosynthen platform, in which the chemical scaffold for bioconjugation is optimized for the STING agonist, resulting in an ADC that has desirable physicochemical and drug-like properties.

Abstract: The invention provides immunoconjugates of Formula I comprising an anti-CEA antibody linked by conjugation to one or more 8-phenyl-2-aminobenzazepine derivatives. The invention also provides 8-phenyl-2-aminobenzazepine derivative intermediate compositions comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The invention provides immunoconjugates of Formula I comprising an anti-HER2 antibody linked by conjugation to one or more 8-Het-2-aminobenzazepine derivatives. The invention also provides 8-Het-2-aminobenzazepine derivative intermediate compositions comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The invention provides immunoconjugates of Formula I comprising an anti-HER2 antibody linked by conjugation to one or more 8-phenyl-2-aminobenzazepine derivatives. The invention also provides 8-phenyl-2-aminobenzazepine derivative intermediate compositions comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The invention provides immunoconjugates of Formula I comprising an anti-PD-L1 antibody linked by conjugation to one or more 8-Cyc-2-aminobenzazepine derivatives. The invention also provides 8-Cyc-2-aminobenzazepine derivative intermediate compositions comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The invention provides immunoconjugates of Formula I comprising a cell-binding agent linked by conjugation to one or more immunostimulatory moieties where the linker is a substrate for elastase. The invention also provides immunostimulant intermediate compositions comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The invention provides a method for producing an immunoconjugate, the method comprising combining one or more compounds of Formula I and an antibody construct of Formula II to provide the immunoconjugate of Formula III, wherein TA is a therapeutic agent, L is a linker, r is an integer from 1 to 50, Ar is an aromatic moiety comprising a substituent selected from PEG, —SO2CX3, —NR3+, —NO2, —SO3R, —SO2R, —CN, —CX3, —PO3R2, —OPO3R2, and salts thereof, each R independently is H, CX3, or C1-C4 alkyl, each X independently is hydrogen or a halogen, Y is CH2, PEG, or a bond, n is an integer from 1 to 4, and PEG has the formula: —(CH2CH2O)m-(CH2)p—, where p is an integer from 1 to 5 and m is an integer from 2 to 50. The invention also provides an immunoconjugate and a composition of immunoconjugates formed from said method.

Abstract: The invention provides immunoconjugates of Formula I comprising an antibody linked by conjugation to one or more 8-amido-2-aminobenzazepine derivatives. The invention also provides 8-amido-2-aminobenzazepine derivative intermediate compositions comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The application provides macromolecule-supported compounds of Formula I or III comprising a macromolecular support linked by conjugation to one or more aminobenzazepine derivatives. The application also provides aminobenzazepine derivative intermediate compositions of Formula II comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the macromolecule-supported compounds through a linker or linking moiety. The application further provides compositions comprising the macromolecule-supported compounds, as well as methods of treating cancer with the macromolecule-supported compounds.

Abstract: The invention provides immunoconjugates of Formula (I) comprising an antibody linked by conjugation to one or more aminoquinoline derivatives. The invention also provides aminoquinoline derivative intermediate compositions of Formula (III) comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The invention provides an immunoconjugate of formula (I) or (II). Antibody-adjuvant immunoconjugates of the invention, comprising an antibody construct that has an antigen binding domain that binds human epidermal growth factor receptor 2 (“HER2”) linked to one or more adjuvants, demonstrate superior pharmacological properties over conventional antibody conjugates. The invention further provides compositions comprising and methods of treating cancer with the immunoconjugate.

Abstract: The invention provides an immunoconjugate of formula (I) or (II). Antibody-adjuvant immunoconjugates of the invention, comprising an antibody construct that has an antigen binding domain that binds programmed death-ligand 1 (PD-L1) linked to one or more adjuvants, demonstrate superior pharmacological properties over conventional antibody conjugates. The invention further provides compositions comprising and methods of treating cancer with the immunoconjugate.

Abstract: The invention provides immunoconjugates of Formula I comprising an anti-CEA antibody linked by conjugation to one or more 8-Het-2-aminobenzazepine derivatives. The invention also provides 8-Het-2-aminobenzazepine derivative intermediate compositions comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: The invention provides an immunoconjugate of formula (I) or (II) Antibody-adjuvant immunoconjugates of the invention, comprising an antibody construct that has an antigen binding domain that binds carcinoembryonic antigen (“CEA”) linked to one or more adjuvants, demonstrate superior pharmacological properties over conventional antibody conjugates. The invention further provides compositions comprising and methods of treating cancer with the immunoconjugate.

Abstract: The invention provides a macromolecule-supported compound of formula (I) or (II). Macromolecule-supported compounds of the invention, comprising macromolecular support linked to one or more TLR agonists, are recognized by TLRs (e.g., TLR7 and/or TLR8) with high affinity providing utility in therapeutics, diagnostics, and chemical assays. The invention further provides compositions comprising and methods of treating cancer with the macromolecule-supported compounds.

Abstract: The invention provides immunoconjugates of Formula I or III comprising an antibody linked by conjugation to one or more aminobenzazepine derivatives. The invention also provides aminobenzazepine derivative intermediate compositions of Formula II comprising a reactive functional group. Such intermediate compositions are suitable substrates for formation of the immunoconjugates through a linker or linking moiety. The invention further provides methods of treating cancer with the immunoconjugates.

Abstract: Provided are methods and compositions for treating an individual with cancer or infectious disease. Multivalent Dectin-2 stimulating agents are provided that include: (a) an agent that binds to Dectin-2 and stimulates Dectin-2 signaling; and (b) an antibody and/or an immunomodulatory agent, wherein (a) and (b) are conjugated to one another. In some cases, (a) is a mannobiose glycopolypeptide that binds to Dectin-2. In some cases (b) is a stimulatory ligand for a TLR (e.g., TLR7, TLR8, TLR7/8, TLR2, and the like). Methods of treating an individual with cancer and/or an infectious disease can include administering to the individual an effective amount of a Dectin-2 stimulating composition. In some cases, the Dectin-2 stimulating composition comprises a Dectin-2 stimulating glycopolymer. In some cases the Dectin-2 stimulating composition comprises a multivalent Dectin-2 stimulating agent.