DK2731972T3 - Antifolatreceptoralfa-antistoffer og anvendelser deraf - Google Patents
Antifolatreceptoralfa-antistoffer og anvendelser deraf Download PDFInfo
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- DK2731972T3 DK2731972T3 DK12736054.3T DK12736054T DK2731972T3 DK 2731972 T3 DK2731972 T3 DK 2731972T3 DK 12736054 T DK12736054 T DK 12736054T DK 2731972 T3 DK2731972 T3 DK 2731972T3
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Claims (38)
1. Et isoleret antistof, eller antigenbindende fragment deraf, specifikt for folatreceptoralfa (FRa), der omfatter en let kæde CDR1, der har aminosyresekvensen SEQ ID NO: 26, en let kæde CDR2, der har aminosyresekvensen SEQ ID NO: 27, en let kæde CDR3, der har aminosyresekvensen SEQ ID NO: 28, en tung kæde CDR1, der har aminosyresekvensen SEQ ID NO: 30, en tung kæde CDR2, der har aminosyresekvensen SEQ ID NO: 31, og en tung kæde CDR3, der har aminosyresekvensen SEQ ID NO: 32.
2. Det isolerede antistof eller antigenbindende fragment ifølge krav 1, hvori antistoffet er et murint antistof, et kimerisk antistof eller et humaniseret antistof.
3. Det isolerede antistof eller antigenbindende fragment ifølge krav 1, der har en let kædevariabel region, der omfatter aminosyresekvensen SEQ ID NO: 29 og/eller en tung kædevariabel region, der omfatter aminosyresekvensen SEQ ID NO: 33.
4. Et isoleret polynukleotid, der koder et antistof, eller antigenbindende fragment deraf, specifikt for folatreceptoralfa (FRa), hvori den lette kæde CDR1 af det kodede antistof omfatter aminosyresekvensen SEQ ID NO: 26, den lette kæde CDR2 af det kodede antistof omfatter aminosyresekvensen SEQ ID NO: 27, den lette kæde CDR3 af det kodede antistof omfatter aminosyresekvensen SEQ ID NO: 28, den tunge kæde CDR1 af det kodede antistof omfatter aminosyresekvensen SEQ ID NO: 30, den tunge kæde CDR2 af det kodede antistof omfatter aminosyresekvensen SEQ ID NO: 31, og den tunge kæde CDR3 af det kodede antistof omfatter aminosyresekvensen SEQ ID NO: 32.
5. Polynukleotidet ifølge krav 4, der omfatter nukleotidsekvenseme SEQ ID NO: 61 og 65.
6. Det isolerede polynukleotid ifølge krav 4, der omfatter nukleotidsekvenseme SEQ ID NO: 58, SEQ ID NO: 59, SEQ ID NO: 60, SEQ ID NO: 62, SEQ ID NO: 63, og SEQ ID NO: 64.
7. En vektor, der omfatter det isolerede polynukleotid ifølge ethvert af kravene 5 til 6.
8. En rekombinant celle, der omfatter vektoren ifølge krav 7.
9. Den rekombinante celle ifølge krav 8, hvori cellen er en eukaryotisk celle, en plantecelle eller et bakterium.
10. Et isoleret antistof specifikt for folatreceptoralfa (FRa), der produceres af cellerækken, der aflejres med ATCC, der har registreringsnummer PTA-11885.
11. En metode til detektering af folatreceptoralfa (FRa) eller FRa-udtrykkende cancer i en biologisk prøve, der omfatter eksponering af prøven for antistoffet ifølge 1 eller 10, eller det antigenbindende fragment deraf, og detektering af folatreceptoralfa (FRa).
12. Metoden ifølge krav 11, hvor den biologiske prøve er afledt fra et menneske, en gnaver, ikke-human primat, kanin eller hund.
13. En metode til diagnosticering af en folatreceptoralfa-udtrykkende cancer hos en person, der omfatter: a. eksponering af en biologisk prøve fra personen for antistoffet ifølge krav 1 eller krav 10, eller et antigenbindende fragment deraf. b. kvantificering af mængden af folatreceptoralfa (FRa), der er til stede i prøven. c. sammenligning af mængden af folatreceptoralfa (FRa), der er til stede i prøven, med en kendt standard, og d. bestemmelse af, om personens niveauer af folatreceptoralfa (FRa) falder inden for niveauerne af folatreceptoralfa (FRa), der er forbundet med cancer.
14. Metoden ifølge krav 13, hvor et fund af, at personens adenocarcinomceller udtrykker folatreceptoralfa, angiver, at personen har en større sandsynlighed for en forbedret 5-årig overlevelsesrate, end hvis adenocarcinomcelleme ikke udtrykker folatreceptoralfa.
15. En metode til overvågning af en folatreceptoralfa-udtrykkende cancer hos en person, der omfatter: a. eksponering af en biologisk prøve fra personen for antistoffet ifølge krav 1 eller krav 10, eller et antigenbindende fragment deraf. b. kvantificering af mængden af folatreceptoralfa (FRa), der er til stede i prøven, som er bundet af antistoffet eller det antigenbindende fragment deraf. c. sammenligning af mængden af folatreceptoralfa (FRa), der er til stede i prøven, med enten i. en kendt standard, eller ii. en biologisk prøve, der er taget fra personen på et tidligere tidspunkt, og d. bestemmelse af, om personens niveauer af folatreceptoralfa (FRa) tyder på cancerprogression, -regression eller stabil sygdom.
16. Metoden ifølge ethvert af kravene 11 til 15, hvori den biologiske prøve er afledt af urin, blod, serum, plasma, slim, ascites, cirkulerende celler, cirkulerende tumorceller, celler, der ikke er vævsforbundne, væv, kirurgisk reseceret tumorvæv, biopsier, prøver fra finnålsaspiration eller histologiske præparater.
17. Metoden ifølge krav 13, hvor canceren er brystcancer, thyroideacancer, kolorektal cancer, endometriecancer, tubacancer eller ovariecancer.
18. Metoden ifølge krav 17, hvor canceren er lungecancer.
19. Metoden ifølge krav 18, hvor lungecanceren er adenocarcionom.
20. Metoden ifølge krav 13, hvor den kendte standard omfatter a. niveauer af folatreceptoralfa (FRa) afledt af personer, der identificeres som værende fri for cancer, eller et præparatfolatreceptoralfa-protein ved en kendt koncentration. b. FRa-niveauer afledt fra personer, der identificeres som havende folatreceptoralfa-udtrykkende cancer i tidligt stadie. c. FRa-niveauer afledt fra personer, der identificeres som havende folatreceptoralfa-udtrykkende cancer i mellemstadie, eller d. FRa-niveauer afledt fra personer, der identificeres som havende folatreceptoralfa-udtrykkende cancer i sent stadie.
21. Metoden ifølge krav 20, hvor canceren er brystcancer, thyroideacancer, kolorektal cancer, endometriecancer, tubacancer, ovariecancer eller lungecancer.
22. Metoden ifølge ethvert af kravene 13 til 21, der desuden omfatter følgende udtalte eksponerende trin, der eksponerer personens biologiske prøve for et andet antistof, eller antigenbindende fragment deraf, udvalgt fra: i. antistoffet ifølge krav 1. ii. antistoffet ifølge krav 10. iii. et isoleret antistof, eller antigenbindende fragment deraf, specifikt for folatreceptoralfa (FRa), der omfatter en let kæde CDR1, der har aminosyresekvensen SEQ ID NO: 10, en let kæde CDR2, der har aminosyresekvensen SEQ ID NO: 11, en let kæde CDR3, der har aminosyresekvensen SEQ ID NO: 12, en tung kæde CDR1, der har aminosyresekvensen SEQ ID NO: 14, en tung kæde CDR2, der har aminosyresekvensen SEQ ID NO: 15, og en tung kæde CDR3, der har aminosyresekvensen SEQ ID NO: 16. iv. et isoleret antistof specifikt for folatreceptoralfa (FRa), der produceres af cellerækken, der aflejres med ATCC, der har registreringsnummer PTA-11884. v. et isoleret antistof, eller antigenbindende fragment deraf, specifikt for folatreceptoralfa (FRa), der omfatter en let kæde CDR1, der har aminosyresekvensen SEQ ID NO: 18, en let kæde CDR2, der har aminosyresekvensen SEQ ID NO: 19, en let kæde CDR3, der har aminosyresekvensen SEQ ID NO: 20, en tung kæde CDR1, der har aminosyresekvensen SEQ ID NO: 22, en tung kæde CDR2, der har aminosyresekvensen SEQ ID NO: 23, og en tung kæde CDR3, der har aminosyresekvensen SEQ ID NO: 24. vi. et isoleret antistof specifikt for folatreceptoralfa (FRa), der produceres af cellerækken, der aflejres med ATCC, der har registreringsnummer PTA-11886. vii. et isoleret antistof, eller antigenbindende fragment deraf, specifikt for folatreceptoralfa (FRa), der omfatter en let kæde CDR1, der har aminosyresekvensen SEQ ID NO: 2, en let kæde CDR2, der har aminosyresekvensen SEQ ID NO: 3, en let kæde CDR3, der har aminosyresekvensen SEQ ID NO: 4, en tung kæde CDR1, der har aminosyresekvensen SEQ ID NO: 6, en tung kæde CDR2, der har aminosyresekvensen SEQ ID NO: 7, og en tung kæde CDR3, der har aminosyresekvensen SEQ ID NO: 8, og viii. et isoleret antistof specifikt for folatreceptoralfa (FRa), der produceres af cellerækken, der aflejres med ATCC, der har registreringsnummer PTA-11887, hvor det andet antistof er forskelligt fra det første antistof.
23. Metoden ifølge krav 22, hvor en biologisk prøve fra personen eksponeres for antistoffet ifølge krav 1 eller krav 10, eller et antigenbindende fragment deraf, og derefter eksponeres for: a. et isoleret antistof, eller antigenbindende fragment deraf, specifikt for folatreceptoralfa (FRa), der omfatter en let kæde CDR1, der har aminosyresekvensen SEQ ID NO: 10, en let kæde CDR2, der har aminosyresekvensen SEQ ID NO: 11, en let kæde CDR3, der har aminosyresekvensen SEQ ID NO: 12, en tung kæde CDR1, der har aminosyresekvensen SEQ ID NO: 14, en tung kæde CDR2, der har aminosyresekvensen SEQ ID NO: 15, og en tung kæde CDR3, der har aminosyresekvensen SEQ ID NO: 16. b. et isoleret antistof specifikt for folatreceptoralfa (FRa), der produceres af cellerækken, der aflejres med ATCC, der har registreringsnummer PTA-11884. c. et isoleret antistof, eller antigenbindende fragment deraf, specifikt for folatreceptoralfa (FRa), der omfatter en let kæde CDR1, der har aminosyresekvensen SEQ ID NO: 18, en let kæde CDR2, der har aminosyresekvensen SEQ ID NO: 19, en let kæde CDR3, der har aminosyresekvensen SEQ ID NO: 20, en tung kæde CDR1, der har aminosyresekvensen SEQ ID NO: 22, en tung kæde CDR2, der har aminosyresekvensen SEQ ID NO: 23, og en tung kæde CDR3, der har aminosyresekvensen SEQ ID NO: 24. d. et isoleret antistof specifikt for folatreceptoralfa (FRa), der produceres af cellerækken, der aflejres med ATCC, der har registreringsnummer PTA-11886. e. et isoleret antistof, eller antigenbindende fragment deraf, specifikt for folatreceptoralfa (FRa), der omfatter en let kæde CDR1, der har aminosyresekvensen SEQ ID NO: 2, en let kæde CDR2, der har aminosyresekvensen SEQ ID NO: 3, en let kæde CDR3, der har aminosyresekvensen SEQ ID NO: 4, en tung kæde CDR1, der har aminosyresekvensen SEQ ID NO: 6, en tung kæde CDR2, der har aminosyresekvensen SEQ ID NO: 7, og en tung kæde CDR3, der har aminosyresekvensen SEQ ID NO: 8. f. et isoleret antistof specifikt for folatreceptoralfa (FRa), der produceres af cellerækken, der aflejres med ATCC, der har registreringsnummer PTA-11887.
24. Metoden ifølge ethvert af kravene 15 til 21, hvor metoden udføres efter behandling af personen for cancer.
25. Metoden ifølge ethvert af kravene 11 til 24, hvor antistoffet, eller antistoffragmentet, mærkes.
26. Metoden ifølge krav 25, hvor mærket er et radioaktivt mærke, et fluorescerende mærke, et epitoptag, biotin, et kromofor-mærke, et ECL-mærke eller et enzym.
27. Metoden ifølge ethvert af kravene 11 til 24, hvor den eksponerede folatreceptoralfa (FRa) er eller ikke er bundet til en celle.
28. Metoden ifølge ethvert af kravene 11 til 24, hvor den eksponerede folatreceptoralfa (FRa) i prøven detekteres ved hjælp af Western Blot, immunohistokemi, flowcytometri, radioimmunoassay, immunoprecipitation, elektrokemiluminescensimmunoassay (ECFIA) eller EFISA.
29. Et kit til detektering af tilstedeværelsen af folatreceptoralfa (FRa) i en biologisk prøve, der omfatter mindst ét antistof ifølge krav 1 eller krav 10, eller et antigenbindende fragment deraf.
30. Et kit til detektering af tilstedeværelsen af folatreceptoralfa (FRa) i en biologisk prøve, der omfatter: mindst ét antistof ifølge krav 1 eller krav 10, eller et antigenbindende fragment deraf. hvor det inkluderede antistof, eller antigenbindende fragment deraf, er fastgjort til en solid støtte.
31. Et kit til detektering af tilstedeværelsen af folatreceptoralfa (FRa) i en biologisk prøve, der omfatter: mindst ét antistof ifølge krav 1 eller krav 10, eller et antigenbindende fragment deraf. hvor det inkluderede antistof, eller antigenbindende fragment deraf, er detekterbart mærket.
32. Metoden ifølge krav 13 eller krav 14, hvor personens niveauer af folatreceptoralfa (FRa) tyder på den type cancer, personen lider af.
33. Metoden ifølge krav 32, hvor canceren er lungeadenocarcinom eller pladecelle-lungecarcinom.
34. Det isolerede antistof ifølge ethvert af kravene 1 til 3 eller 10, hvor antistoffet er detekterbart mærket.
35. Antistoffet ifølge krav 34, hvor det detekterbare mærke er et radioaktivt mærke, et fluorescerende mærke, et epitoptag, biotin, et kromofor-mærke, et ECL-mærke eller et enzym.
36. Antistoffet ifølge krav 35, hvor mærket er ruthenium, inIn-DOTA, mIndiethylentriaminpentaeddikesyre (DTPA), peberrodsperoxidase, alkalisk phosphatase og beta-galaktosidase eller poly-histidin.
37. Metoden ifølge ethvert af kravene 11 til 21, hvor antistoffet, eller det antigenbindende fragment, er fastgjort til en solid støtte.
38. Metoden ifølge krav 13 eller krav 14, der desuden omfatter forudsigelse af et gunstigt resultat for en person, som har adenocarcinom, der udtrykker folatreceptoralfa (FRa), hvor et gunstigt resultat defineres som havende en forhøjet 5-årig overlevelsesrate.
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| PCT/US2012/046672 WO2013012722A1 (en) | 2011-07-15 | 2012-07-13 | Anti-folate receptor alpha antibodies and uses thereof |
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| EP3749316A4 (en) | 2018-02-07 | 2021-10-27 | L.E.A.F Holdings Group LLC | ALPHA-POLYGLUTAMATED PRALATREXATE AND USES THEREOF |
| US12220431B2 (en) | 2018-02-07 | 2025-02-11 | L.E.A.F. Holdings Group Llc | Gamma polyglutamated antifolates and uses thereof |
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| WO2019157125A1 (en) | 2018-02-07 | 2019-08-15 | L.E.A.F. Holdings Group Llc | Alpha polyglutamated methotrexate and uses thereof |
| CA3090389A1 (en) | 2018-02-07 | 2019-08-15 | L.E.A.F. Holdings Group Llc | Alpha polyglutamated raltitrexed and uses thereof |
| CA3090875A1 (en) | 2018-02-14 | 2019-08-22 | L.E.A.F. Holdings Group Llc | Gamma polyglutamated lometrexol and uses thereof |
| US12048766B2 (en) | 2018-02-14 | 2024-07-30 | L.E.A.F. Holdings Group Llc | Gamma polyglutamated tetrahydrofolates and uses thereof |
| WO2019160733A1 (en) | 2018-02-14 | 2019-08-22 | L.E.A.F. Holdings Group Llc | Gamma polyglutamated methotrexate and uses thereof |
| WO2019160736A1 (en) | 2018-02-14 | 2019-08-22 | L.E.A.F. Holdings Group Llc | Gamma polyglutamated pralatrexate and uses thereof |
| CA3090943A1 (en) | 2018-02-14 | 2019-08-22 | L.E.A.F. Holdings Group Llc | Gamma polyglutamated aminopterin and uses thereof |
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| JP7623939B2 (ja) * | 2018-07-09 | 2025-01-29 | マルチチュード インコーポレーテッド | 葉酸受容体アルファに特異的な抗体 |
| CN111393528B (zh) * | 2020-01-19 | 2023-01-31 | 中国药科大学 | 一种靶向叶酸受体α的单链抗体及其应用 |
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| JP2024522544A (ja) * | 2021-06-04 | 2024-06-21 | イミュノジェン, インコーポレイテッド | 可溶性FR-α患者におけるがんの治療 |
| WO2023009529A2 (en) | 2021-07-28 | 2023-02-02 | Trustees Of Boston University | Novel polypeptides and uses thereof |
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| WO2024104431A1 (zh) * | 2022-11-16 | 2024-05-23 | 迈威(上海)生物科技股份有限公司 | 一种靶向FRα的抗体或其抗原结合片段及其应用 |
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