OCD, Hoarding Disorder and Community Psychiatry – Volen Ivanov’s research group

The group develops and evaluates interventions for people with OCD, hoarding disorder and related conditions, in healthcare and community settings. Its work includes developing treatments for OCD and related disorders in psychiatric care, Individual Placement and Support (IPS), peer support and community participation. The group runs randomized trials and implementation studies together with patients, relatives, social services and psychiatry.

Publications

All publications from group members

  • Article: BIOLOGICAL PSYCHIATRY. 2026;100(9):931-942
    Höffler KD; Stavrum A-K; Halvorsen MW; Eide TO; Hagen K; Høberg A; Nordic OCD and Related Disorders Consortium (NORDi; Kvale G; Crowley JJ; Haavik J; Ressler KJ; Hansen B; Klengel T; Le Hellard S
  • Article: AMERICAN JOURNAL OF MEDICAL GENETICS PART B-NEUROPSYCHIATRIC GENETICS. 2026;201(6):396-405
    Backman J; Kravchenko O; Halvorsen M; de Schipper E; Ivanova E; Kaldo V; Isacsson NH; Eide TO; Hoffler KD; Mattheisen M; Hansen B; Kvale G; Hagen K; Haavik J; Mataix-cols D; Crowley JJ; Wallert J; Ruck C
  • Article: NATURE GENETICS. 2026;58(2):275-288
    Strom NI; Verhulst B; Bacanu S-A; Cheesman R; Purves KL; Gedik H; Mitchell BL; Kwong AS; Faucon AB; Singh K; Medland S; Colodro-Conde L; Krebs K; Hoffmann P; Herms S; Gehlen J; Ripke S; Awasthi S; Palviainen T; Tasanko EM; Peterson RE; Adkins DE; Shabalin AA; Adams MJ; Iveson MH; Campbell A; Thomas LF; Winsvold BS; Drange OK; Borte S; ter Kuile AR; Naamanka J; Nguyen T-H; Meier SM; Corfield EC; Hannigan L; Levey DF; Czamara D; Weber H; Choi KW; Pistis G; Couvy-Duchesne B; Van der Auwera S; Teumer A; Karlsson R; Garcia-Argibay M; Lee D; Wang R; Bjerkeset O; Stordal E; Salum GA; Zai CC; Kennedy JL; Zai G; Tiwari AK; Heilmann-Heimbach S; Schmidt B; Kaprio J; Kennedy MM; Boden J; Havdahl A; Middeldorp CM; Lopes FL; Akula N; McMahon FJ; Binder EB; Fehm L; Strohle A; Castelao E; Tiemeier H; Stein DJ; Whiteman D; Olsen C; Fuller Z; Wang X; Wray NR; Byrne EM; Lewis G; Timpson NJ; Davis LK; Hickie IB; Gillespie NA; Milani L; Schumacher J; Woldbye DP; Forstner AJ; Nothen MM; Hovatta I; Horwood J; Copeland WE; Maes HH; McIntosh AM; Andreassen OA; Zwart J-A; Mors O; Borglum AD; Mortensen PB; Ask H; Reichborn-Kjennerud T; Najman JM; Stein MB; Gelernter J; Milaneschi Y; Penninx BW; Boomsma DI; Maron E; Erhardt-Lehmann A; Ruck C; Kircher TT; Melzig CA; Alpers GW; Arolt V; Domschke K; Smoller JW; Preisig M; Martin NG; Lupton MK; Luik AI; Reif A; Grabe HJ; Larsson H; Magnusson PK; Oldehinkel AJ; Hartman CA; Breen G; Docherty AR; Coon H; Conrad R; Lehto K; Deckert J; Eley TC; Mattheisen M; Hettema JM
  • Article: PSYCHOLOGICAL MEDICINE. 2026;56:e22
    Isomura K; Osterman S; Hedman-Lagerlof E; Kuja-Halkola R; Brikell I; Chang Z; D'onofrio BM; Larsson H; Lichtenstein P; Mataix-Cols D; Fernandez de la Cruz L; Ivanov V; Sidorchuk A
  • Article: EUROPEAN JOURNAL OF PSYCHOTRAUMATOLOGY. 2025;16(1):2545048
    Hedvall H; Andersson E; Ivanov VZ; Bragesjo M
  • Article: EUROPEAN JOURNAL OF PSYCHOTRAUMATOLOGY. 2025;16(1):2460308
    Bragesjo M; Ivanov VZ; Kuwae S; Linnander-Manfred J; Eklund R; Ruck C
  • Study protocol: TRIALS. 2025;27(1):43
    Bragesjo M; Ivanov VZ; Andersson E; Ruck C
  • Article: MOLECULAR PSYCHIATRY. 2025;30(11):5024-5033
    Xiong Y; Krebs K; Jermy B; Karlsson R; Pasman JA; Nguyen T-D; Gong T; Kowalec K; Ruck C; Sigstrom R; Jonsson L; Clements CC; Horbeck E; Andersson E; Backman J; Ganna A; German J; Sullivan PF; Landen M; Lehto K; Lu Y
  • Article: FRONTIERS IN DIGITAL HEALTH. 2025;7:1518666
    Sannemalm M; Lybert N; Gunnarsson L; Andren P; Kraepelien M; Bragesjo M; Fondberg R; Ivanov VZ; Mataix-Cols D; Fernandez de la Cruz L; Andersson E; Ruck C; Ivanova E
  • Journal article: RES SQ. 2025;:rs.3.rs-7031850
    Halvorsen M; Wang S; Miller-Fleming T; Yu D; Topaloudi A; de Schipper E; Bäckman J; Mataix-Cols D; Rück C; Mahjani B; Buxbaum J; Grice D; Cavallari L; Angiolillo D; Franchi F; Davis L; Han L; Ruderfer D; Dietrich A; Hoekstra P; Mattheisen M; Porras L; Giusti-Rodríguez P; Mathews C; Paschou P; Scharf J; Willsey J; Crowley J
  • Doctoral thesis: 2025
    Bäckman J
  • Article: AMERICAN JOURNAL OF MEDICAL GENETICS PART B-NEUROPSYCHIATRIC GENETICS. 2025;198(5):e33026
    Backman J; Wallert J; Halvorsen M; Roelstraete B; de Schipper E; Strom NI; Eide TO; Hoffler KD; Mattheisen M; Hansen B; Kvale G; Hagen K; Haavik J; Mataix-Cols D; Ruck C; Crowley JJ
  • Article: DISCOVER MENTAL HEALTH. 2025;5(1):82
    Baeckman J; Wallert J; Halvorsen M; Crowley JJ; Mataix-Cols D; Rueck C
  • Article: NATURE GENETICS. 2025;57(6):1389-1401
    Strom NI; Gerring ZF; Galimberti M; Yu D; Halvorsen MW; Abdellaoui A; Rodriguez-Fontenla C; Sealock JM; Bigdeli T; Coleman JR; Mahjani B; Thorp JG; Bey K; Burton CL; Luykx JJ; Zai G; Alemany S; Andre C; Askland KD; Baeckman J; Banaj N; Nissen JB; Bienvenu OJ; Black D; Bloch MH; Borte S; Bosch R; Breen M; Brennan BP; Brentani H; Buxbaum JD; Bybjerg-Grauholm J; Byrne EM; Cabana-Dominguez J; Camarena B; Camarena A; Cappi C; Carracedo A; Casas M; Cavallini MC; Ciullo V; Cook EH; Crosby J; Cullen BA; De Schipper EJ; Delorme R; Djurovic S; Elias JA; Estivill X; Falkenstein MJ; Fundin BT; Garner L; Gironda C; Goes FS; Grados MA; Grove J; Guo W; Haavik J; Hagen K; Harrington K; Havdahl A; Hoeffler KD; Hounie AG; Hucks D; Hultman C; Janecka M; Jenike E; Karlsson EK; Kelley K; Klawohn J; Krasnow JE; Krebs K; Lange C; Lanzagorta N; Levey D; Lindblad-Toh K; Macciardi F; Maher B; Mathes B; Mcarthur E; Mcgregor N; Mclaughlin NC; Meier S; Miguel EC; Mulhern M; Nestadt PS; Nurmi EL; O'Connell KS; Osiecki L; Ousdal OT; Palviainen T; Pedersen NL; Piras F; Piras F; Potluri S; Rabionet R; Ramirez A; Rauch S; Reichenberg A; Riddle MA; Ripke S; Rosario MC; Sampaio AS; Schiele MA; Skogholt AH; Sloofman LG; Smit J; Artigas MS; Thomas LF; Tifft E; Vallada H; van Kirk N; Veenstra-VanderWeele J; Vulink NN; Walker CP; Wang Y; Wendland JR; Winsvold BS; Yao Y; Zhou H; Metspalu A; Esko T; Maegi R; Nelis M; Hudjashov G; German C; Agrawal A; Alonso P; Berberich G; Bucholz KK; Bulik CM; Cath D; Denys D; Eapen V; Edenberg H; Falkai P; Fernandez TV; Fyer AJ; Gaziano JM; Geller DA; Grabe HJ; Greenberg BD; Hanna GL; Hickie IB; Hougaard DM; Kathmann N; Kennedy J; Lai D; Landen M; Hellard SL; Leboyer M; Lochner C; Mccracken JT; Medland SE; Mortensen PB; Neale BM; Nicolini H; Nordentoft M; Pato M; Pato C; Pauls DL; Piacentini J; Pittenger C; Posthuma D; Ramos-Quiroga JA; Rasmussen SA; Richter MA; Rosenberg DR; Ruhrmann S; Samuels JF; Sandin S; Sandor P; Spalletta G; Stein DJ; Stewart SE; Storch EA; Stranger BE; Turiel M; Werge T; Andreassen OA; Borglum AD; Walitza S; Hveem K; Hansen BK; Rueck C; Martin NG; Milani L; Mors O; Reichborn-Kjennerud T; Ribases M; Kvale G; Mataix-Cols D; Domschke K; Gruenblatt E; Wagner M; Zwart J-A; Breen G; Nestadt G; Kaprio J; Arnold PD; Grice DE; Knowles JA; Ask H; Verweij KJ; Davis LK; Smit DJ; Crowley JJ; Scharf JM; Stein MB; Gelernter J; Mathews CA; Derks EM; Mattheisen M
  • Article: BMC PSYCHIATRY. 2025;25(1):555
    Kravchenko O; Backman J; Mataix-Cols D; Crowley JJ; Halvorsen M; Sullivan PF; Wallert J; Ruck C
  • Preprint: MEDRXIV. 2025;MEDRXIV
    Strom NI; Gerring ZF; Galimberti M; Yu D; Halvorsen MW; Abdellaoui A; Rodriguez-Fontenla C; Sealock JM; Bigdeli T; Coleman JR; Mahjani B; Thorp JG; Bey K; Burton CL; Luykx JJ; Zai G; Alemany S; Andre C; Askland KD; Bäckmann J; Banaj N; Barlassina C; Nissen JB; Bienvenu OJ; Black D; Bloch MH; Børte S; Bosch R; Breen M; Brennan BP; Brentani H; Buxbaum JD; Bybjerg-Grauholm J; Byrne EM; Cabana-Dominguez J; Camarena B; Camarena A; Cappi C; Carracedo A; Casas M; Cavallini MC; Ciullo V; Cook EH; Crosby J; Cullen BA; De Schipper EJ; Delorme R; Djurovic S; Elias JA; Estivill X; Falkenstein MJ; Fundin BT; Garner L; Gironda C; Goes FS; Grados MA; Grove J; Guo W; Haavik J; Hagen K; Harrington K; Havdahl A; Höffler KD; Hounie AG; Hucks D; Hultman C; Janecka M; Jenike E; Karlsson EK; Kelley K; Klawohn J; Krasnow JE; Krebs K; Lange C; Lanzagorta N; Levey D; Lindblad-Toh K; Macciardi F; Maher B; Mathes B; McArthur E; McGregor N; McLaughlin NC; Meier S; Miguel EC; Mulhern M; Nestadt PS; Nurmi EL; O'Connell KS; Osiecki L; Ousdal OT; Palviainen T; Pedersen NL; Piras F; Piras F; Potluri S; Rabionet R; Ramirez A; Rauch S; Reichenberg A; Riddle MA; Ripke S; Rosário MC; Sampaio AS; Schiele MA; Skogholt AH; Sloofman LG; Smit J; Soler Artigas M; Thomas LF; Tifft E; Vallada H; van Kirk N; Veenstra-VanderWeele J; Vulink NN; Walker CP; Wang Y; Wendland JR; Winsvold BS; Yao Y; Zhou H; Estonian Biobank; 23andMe Inc.; Agrawal A; Alonso P; Berberich G; Bucholz KK; Bulik CM; Cath D; Denys D; Eapen V; Edenberg H; Falkai P; Fernandez TV; Fyer AJ; Gaziano JM; Geller DA; Grabe HJ; Greenberg BD; Hanna GL; Hickie IB; Hougaard DM; Kathmann N; Kennedy J; Lai D; Landén M; Le Hellard S; Leboyer M; Lochner C; McCracken JT; Medland SE; Mortensen PB; Neale BM; Nicolini H; Nordentoft M; Pato M; Pato C; Pauls DL; Piacentini J; Pittenger C; Posthuma D; Ramos-Quiroga JA; Rasmussen SA; Richter MA; Rosenberg DR; Ruhrmann S; Samuels JF; Sandin S; Sandor P; Spalletta G; Stein DJ; Stewart SE; Storch EA; Stranger BE; Turiel M; Werge T; Andreassen OA; Børglum AD; Walitza S; Hveem K; Hansen BK; Rück C; Martin NG; Milani L; Mors O; Reichborn-Kjennerud T; Ribasés M; Kvale G; Mataix-Cols D; Domschke K; Grünblatt E; Wagner M; Zwart J-A; Breen G; Nestadt G; Kaprio J; Arnold PD; Grice DE; Knowles JA; Ask H; Verweij KJ; Davis LK; Smit DJ; Crowley JJ; Scharf JM; Stein MB; Gelernter J; Mathews CA; Derks EM; Mattheisen M
  • Article: BIOLOGICAL PSYCHIATRY. 2025;97(7):743-752
    Strom NI; Halvorsen MW; Grove J; Asbjoernsdottir B; Luovigsson P; Thorarensen O; de Schipper E; Baeckmann J; Andren P; Tian C; Als TD; Nissen JB; Meier SM; Bybjerg-Grauholm J; Hougaard DM; Werge T; Borglum AD; Hinds DA; Rueck C; Mataix-Cols D; Stefansson H; Stefansson K; Crowley JJ; Mattheisen M
  • Article: MOLECULAR PSYCHIATRY. 2025;30(4):1510-1517
    Halvorsen MW; de Schipper E; Baeckman J; Strom NI; Hagen K; Lindblad-Toh K; Karlsson EK; Pedersen NL; Wallert J; Bulik CM; Fundin B; Landen M; Kvale G; Hansen B; Haavik J; Mattheisen M; Rueck C; Mataix-Cols D; Crowley JJ
  • Article: CELL. 2025;188(3):640-652.e9
    Mcintosh AM; Lewis CM; Adams MJ; Streit F; Meng X; Awasthi S; Adey BN; Choi KW; Chundru VK; Coleman JRI; Ferwerda B; Foo JC; Gerring ZF; Giannakopoulou O; Gupta P; Hall ASM; Harder A; Howard DM; Hubel C; Kwong ASF; Levey DF; Mitchell BL; Ni G; Ota VK; Pain O; Pathak GA; Schulte EC; Shen X; Thorp JG; Walker A; Yao S; Zeng J; Zvrskovec J; Aarsland D; Actkins KV; Adli M; Agerbo E; Aichholzer M; Aiello A; Air TM; Als TD; Andersson E; Andlauer TFM; Arolt V; Ask H; Backman J; Badola S; Ballard C; Banasik K; Bass NJ; Beekman ATF; Belangero S; Bigdeli TB; Binder EB; Bjerkeset O; Bjornsdottir G; Borte S; Brann E; Braun A; Brodersen T; Bruckl TM; Brunak S; Bruun MT; Burmeister M; Buspavanich P; Bybjerg-Grauholm J; Byrne EM; Cai J; Campbell A; Campbell ML; Campos AI; Castelao E; Cervilla J; Chaumette B; Chen C-Y; Chen H-C; Chen Z; Cichon S; Colodro-Conde L; Corbett A; Corfield EC; Couvy-Duchesne B; Craddock N; Dannlowski U; Davies G; de Geus EJC; Deary IJ; Degenhardt F; Dehghan A; DePaulo JR; Deuschle M; Didriksen M; Dinh KM; Direk N; Djurovic S; Docherty AR; Domschke K; Dowsett J; Drange OK; Dunn EC; Eaton W; Einarsson G; Eley TC; Elsheikh SSM; Engelmann J; Benros ME; Erikstrup C; Escott-Price V; Fabbri C; Fang Y; Finer S; Frank J; Free RC; Gallo L; Gao H; Gill M; Gilles M; Goes FS; Gordon SD; Grove J; Gudbjartsson DF; Gutierrez B; Hahn T; Hall LS; Hansen TF; Haraldsson M; Hartman CA; Havdahl A; Hayward C; Heilmann-Heimbach S; Herms S; Hickie IB; Hjalgrim H; Hjerling-Leffler J; Hoffmann P; Homuth G; Horn C; Hottenga J-J; Hougaard DM; Hovatta I; Huang QQ; Hucks D; Huider F; Hunt KA; Ialongo NS; Ising M; Isometsa E; Jansen R; Jiang Y; Jones I; Jones LA; Jonsson L; Kanai M; Karlsson R; Kasper S; Kendler KS; Kessler RC; Kloiber S; Knowles JA; Koen N; Kraft J; Kranzler HR; Krebs K; Kallak TK; Kutalik Z; Lahtela E; Lake M; Larsen MH; Lenze EJ; Lewins M; Lewis G; Li L; Danae B; Lin K; Lind PA; Liu Y-L; MacIntyre DJ; MacKinnon DF; Maher BS; Maier W; Marshe VS; Martinez-Levy GA; Matsuda K; Mbarek H; McGuffin P; Medland SE; Meinert S; Mikkelsen C; Mikkelsen S; Milaneschi Y; Millwood IY; Molina E; Mondimore FM; Mortensen PB; Mulsant BH; Naamanka J; Najman JM; Nauck M; Nenadic I; Nielsen KR; Nolte IM; Nordentoft M; Nothen MM; Nyegaard M; O'Donovan MC; Oddsson A; Oliveira AM; Olsen CM; Oskarsson H; Ostrowski SR; Owen MJ; Packer R; Palviainen T; Pan PM; Pato CN; Pato MT; Pedersen NL; Pedersen OB; Peyrot WJ; Potash JB; Preisig M; Preuss MH; Quiroz JA; Renteria ME; Reynolds CFIII; Rice JP; Sakaue S; Santoro ML; Schoevers RA; Schork A; Schulze TG; Send TS; Shi J; Sigurdsson E; Singh K; Sinnamon GCB; Sirignano L; Smeland OB; Smith DJ; Sofer T; Sorensen E; Srinivasan S; Stefansson H; Stefansson K; Straub P; Su M-H; Tadic A; Teismann H; Teumer A; Thapar A; Thomson PA; Thomson PA; Topaloudi A; Tsai S-J; Tzoulaki I; Uhl G; Uitterlinden AG; Ullum H; Umbricht D; Ursano RJ; Van der Auwera S; van Hemert AM; Veluchamy A; Viktorin A; Volzke H; Walters GB; Wang X; Wani A; Weissman MM; Wellmann J; Whiteman DC; Wildman D; Willemsen G; Williams AT; Winsvold BS; Witt SH; Xiong Y; Zillich L; Zwart J-A; Andreassen OA; Baune BT; Berger K; Boomsma DI; Borglum AD; Breen G; Cai N; Coon H; Copeland WE; Creese B; Cruz-Fuentes CS; Czamara D; Davis LK; Derks EM; Domenici E; Elliott P; Forstner AJ; Gawlik M; Gelernter J; Grabe HJ; Hamilton SP; Hveem K; John C; Kaprio J; Kircher T; Krebs M-O; Kuo P-H; Landen M; Lehto K; Levinson DF; Li QS; Lieb K; Loos RJF; Lu Y; Lucae S; Luykx JJ; Maes HHM; Magnusson PK; Martin HC; Martin NG; McQuillin A; Middeldorp CM; Milani L; Mors O; Muller DJ; Muller-Myhsok B; Okada Y; Oldehinkel AJ; Paciga SA; Palmer CNA; Paschou P; Penninx BWJH; Perlis RH; Peterson RE; Pistis G; Polimanti R; Porteous DJ; Posthuma D; Rabinowitz JA; Reichborn-Kjennerud T; Reif A; Rice F; Ricken R; Rietschel M; Rivera M; Ruck C; Salum GA; Schaefer C; Sen S; Serretti A; Skalkidou A; Smoller JW; Stein DJ; Stein F; Stein MB; Sullivan PF; Tesli M; Thorgeirsson TE; Tiemeier H; Timpson NJ; Uddin M; Uher R; van Hee DA; Verweij KJH; Walters RG; Wassertheil-Smoller S; Wendland JR; Werge T; Zwinderman AH; Kuchenbaecker K; Wray NR; Ripke S; Lewis CM; McIntosh AM
  • Article: BEHAVIOR THERAPY. 2025;56(1):70-82
    Asplund M; Lenhard F; Rueck C; Andersson E; Grimlund T; Nilsson M; Sarachu-Nilsson M; Sundh L; Ivanov VZ
  • Show more