Hapten-carrier conjugates for use in drug-abuse therapy and methods for preparation of same

Abstract

Hapten-carrier conjugates capable of eliciting anti-hapten antibodies in vivo by administering, in a therapeutic composition, are disclosed. Methods of preparing said conjugates and therapeutic compositions are also disclosed. Where the hapten is a drug of abuse, a therapeutic composition containing the hapten-carrier conjugate is particularly useful in the treatment of drug addiction, more particularly, cocaine addiction. Passive immunization using antibodies raised against conjugates of the instant invention is also disclosed. The therapeutic composition is suitable for co-therapy with other conventional drugs.

1 - 87 . (canceled) 
   
   
       88 . A hapten-carrier conjugate comprising a carrier wherein the carrier is a bacterial toxin, a product of a bacterial toxin, a subviral, lectin, an allergen, a fragment of an allergen, a malarial protein antigen or an artificial multi-antigenic peptide, wherein the hapten is a hallucinogen, a cannabinoid, a depressant, heroin, methadone, morphine, meperidine, codeine, pentazocine, propoxyphene, ecstasy, amphetamine, phenmetrazine or methylphenidate or a derivative or a metabolite thereof, and wherein the hapten and the carrier are linked by a branch selected from the group of chemical moieties identified by CJ reference number, consisting of
 CJ 0 Q   CJ 1 (CH 2 ) n Q   CJ 1.1 CO 2 Q   CJ 1.2 COQ   CJ 2 OCO(CH 2 ) n Q   CJ 2.1 OCOCH=Q   CJ 2.2 OCOCH(O)CH 2      CJ 2.3 OCO(CH 2 ) n CH 2      CJ 3 CO(CH 2 ) n COQ   CJ 3.1 CO(CH 2 ) n CNQ   CJ 4 OCO(CH 2 ) n COQ   CJ 4.1 OCO(CH 2 ) n CNQ   CJ 5 CH 2 OCO(CH 2 ) n COQ   CJ 5.1 CH 2  OCO(CH 2 ) n CNQ   CJ 6 CONH(CH 2 ) n Q   CJ 7 Y(CH 2 ) n Q   CJ 7.1 CH 2 Y(CH 2 ) n Q   CJ 8 OCOCH(OH)CH 2 Q   CJ 8.1 OCO(CH 2 ) n CH(OH)CH 2 Q   CJ 9 OCOC 6 H 5      CJ 10   
     
       
         
         
             
             
         
       
     
     wherein Q′ is a modified protein; and
 CJ 11 YCO(CH 2 )nCOQ; 
 
     wherein Y is sulfur (S), oxygen (O), or an amine (NH), and wherein n is an integer, and wherein Q is another branch defined by a CJ reference number, or Q is the carrier. 
   
   
       89 . The hapten-carrier conjugate of  claim 88 , wherein n is an integer from 3 to 20. 
   
   
       90 . The hapten-carrier conjugate of  claim 88 , wherein the hallucinogen is mescaline or LSD. 
   
   
       91 . The hapten-carrier conjugate of  claim 88 , wherein the depressant is a nonbarbiturate, methaqualone, a barbiturate, diazepam, flurazepam, phencyclidine, or fluoxetine. 
   
   
       92 . The hapten-carrier conjugate of  claim 88 , wherein the carrier is cholera toxin B, diphtheria toxin, tetanus toxoid, pertussis toxin, filamentous hemagglutinin, Shiga toxin, pseudomonas exotoxin, ricin B subunit, abrin, sweet pea lectin, retrovirus nucleoprotein, rabies nucleoprotein, tobacco mosaic virus, cauliflower mosaic virus, vesicular stomatitis virus-nucleocapsid protein, poxvirus subunit, Semliki forest virus vector or yeast virus-like particle. 
   
   
       93 . The hapten-carrier conjugate of  claim 92 , wherein the carrier is cholera toxin B (CTB). 
   
   
       94 . A therapeutic composition comprising the hapten-carrier conjugate of  claim 88  and a pharmaceutically acceptable carrier. 
   
   
       95 . The therapeutic composition of  claim 94  further comprising an adjuvant. 
   
   
       96 . The therapeutic composition of  claim 95 , wherein the adjuvant is alum, MF-59 or RIBI adjuvant. 
   
   
       97 . The therapeutic composition of  claim 96 , wherein the alum is aluminum hydroxide or aluminum phosphate.