Oncogenetic-Driven Targeted Therapy for Relapsed/Refractory T-Cell Acute Lymphoblastic Leukemia : A French ALL-Target Observatory Report
Introduction T-cell acute lymphoblastic leukemia (T-ALL) is an orphan disease diagnosed mostly in adolescent and young adults. In adult population, 5-10% of T-ALL patients (pts) will be primary refractory and 30-40% will relapse. In relapse/refractory (R/R) patients, standard of care treatments, inc...
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| creator | Cabannes-Hamy, Aurelie Courtois, Lucien Balsat, Marie Simonin, Mathieu Huguet, Françoise Escoffre-Barbe, Martine Pasquier, Florence Bonmati, Caroline Turlure, Pascal Cluzeau, Thomas Lebon, Delphine Gehlkopf, Eve Brissot, Eolia Decroocq, Justine Chevallier, Patrice Chantepie, Sylvain Cacheux, Victoria Maury, Sebastien Chebrek, Safia Leguay, Thibaut Fort, Melody Mauz, Natacha Lamarque, Mathlide Mathilde, Hunault-Berger Wickenhauser, Stefan Frayfer, Jamilé Banos, Anne Tavernier, Emmanuelle Caillot, Denis Ronchetti, Anne Marie Berthon, Celine Lengline, Etienne Lhéritier, Véronique Dombret, Hervé Marçais, Ambroise Pinton, Antoine Andrieu, Guillaume P Boissel, Nicolas Lhermitte, Ludovic Asnafi, Vahid Rousselot, Philippe |
| description | Introduction
T-cell acute lymphoblastic leukemia (T-ALL) is an orphan disease diagnosed mostly in adolescent and young adults. In adult population, 5-10% of T-ALL patients (pts) will be primary refractory and 30-40% will relapse. In relapse/refractory (R/R) patients, standard of care treatments, including nelarabine, yield response rate of about 20-40% and responses are of short duration. On behalf of the GRAALL (Group for Research on Adult Acute Lymphoblastic Leukemia), we launched the ALL-TARGET project combining a precision medicine platform dedicated to R/R T-ALL and T-cell lymphoblastic lymphoma (T-LL), and an observatory to evaluate therapeutic proposals based on mutational profile and intracellular signaling pathways alterations.
Objectives and methods
Leukemic samples from pts with R/R T-ALL/LL were shipped to the GRAALL T-ALL central laboratory in France (V. Asnafi, Hôpital Necker). Biological characterization comprised oncogenetic, phenotypic and in some cases functional analysis. Clinical data from R/R T-ALL/LL pts were collected in a real-life observatory (NCT05832125). Adults pts were eligible if an oncogenetic characterization was available at diagnosis or relapse, and if they received a salvage, either with conventional therapy or with a targeted therapeutic option (TTO). For example, TTOs included Tofacitinib and Venetoclax (Tofa/Ven) in case of IL7R (CD127) expression or IL7R-pathway alterations (IL7R ALT), 5-azacytidine and Venetoclax (Aza/Ven) in case of T-ALL/LL with epigenetic regulators alterations (DNMT3A, ASXL1, PHF6, TET2, PRC2, IDH1/2, SRSF2...) or Temsirolimus, Erwinase and Venetoclax (Tem/Erw/Ven) in case of PI3K signaling pathway alterations (PI3K ALT).
The ALL-TARGET Observatory primary endpoint was overall response rate (ORR) including complete remission (CR), CR with incomplete hematological recovery and partial response. We report here the results of the first pts included, with a focus on those who received TTOs as salvage therapy.
Results
Eighty-nine were analyzed, including 80 T-ALL and 9 T-LL. Sex ratio was 3 and median age at diagnosis was 37.5y, and 51y at the time of the first TTO. Seventy-one pts were in relapse (79.7%) and 18 primary refractory (20.2%). Relapses occurred after a median first CR duration of 16.6 months (range: 2.5-92), with 62.8% in bone marrow, 30% in CNS and 30.3% in other extramedullary sites. Phenotype at diagnosis was available for 68 pts, including 36 Early T-cell Precursor (ETP or near-ETP) ( |
| doi_str_mv | 10.1182/blood-2023-179192 |
| format | Article |
| fullrecord | <record><control><sourceid>elsevier_hal_p</sourceid><recordid>TN_cdi_hal_primary_oai_HAL_hal_04356877v1</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0006497123051224</els_id><sourcerecordid>S0006497123051224</sourcerecordid><originalsourceid>FETCH-LOGICAL-c2192-2ffb277b2e7d227898702b426acd56a393c4c978c5a8c59c4bd56505b826be973</originalsourceid><addsrcrecordid>eNp9kM1KAzEUhYMoWKsP4C5bF7FJ5iczuhqqtcJAodR1SDJ32ui0GZJpoW_gYzvtiEsXlwuHcw6cD6F7Rh8Zy_hEN85VhFMeESZylvMLNGIJzwilnF6iEaU0JXEu2DW6CeGTUhZHPBmh78XOuDXsoLOGvHh7gB1eKb-GDiq82oBX7RHXzuMlNKoNUE2WUHtlOuePeEWm0DS4MPsOcHncthunGxX6KlzC_gu2VuEnXOCZh53Z4KIsydCNFzqAP6hzyxJa57tbdFWrJsDd7x-jj9nrajon5eLtfVqUxPB-FeF1rbkQmoOoOBdZngnKdcxTZaokVVEemdjkIjOJ6i83se7lhCY646mGXERj9DD0blQjW2-3yh-lU1bOi1KeNBpHSZoJcWC9lw1e410IHuq_AKPyhF2escsTdjlg7zPPQwb6EQcLXgZj-_lQWQ-mk5Wz_6R_AISGiwM</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Oncogenetic-Driven Targeted Therapy for Relapsed/Refractory T-Cell Acute Lymphoblastic Leukemia : A French ALL-Target Observatory Report</title><source>EZB-FREE-00999 freely available EZB journals</source><source>Alma/SFX Local Collection</source><creator>Cabannes-Hamy, Aurelie ; Courtois, Lucien ; Balsat, Marie ; Simonin, Mathieu ; Huguet, Françoise ; Escoffre-Barbe, Martine ; Pasquier, Florence ; Bonmati, Caroline ; Turlure, Pascal ; Cluzeau, Thomas ; Lebon, Delphine ; Gehlkopf, Eve ; Brissot, Eolia ; Decroocq, Justine ; Chevallier, Patrice ; Chantepie, Sylvain ; Cacheux, Victoria ; Maury, Sebastien ; Chebrek, Safia ; Leguay, Thibaut ; Fort, Melody ; Mauz, Natacha ; Lamarque, Mathlide ; Mathilde, Hunault-Berger ; Wickenhauser, Stefan ; Frayfer, Jamilé ; Banos, Anne ; Tavernier, Emmanuelle ; Caillot, Denis ; Ronchetti, Anne Marie ; Berthon, Celine ; Lengline, Etienne ; Lhéritier, Véronique ; Dombret, Hervé ; Marçais, Ambroise ; Pinton, Antoine ; Andrieu, Guillaume P ; Boissel, Nicolas ; Lhermitte, Ludovic ; Asnafi, Vahid ; Rousselot, Philippe</creator><creatorcontrib>Cabannes-Hamy, Aurelie ; Courtois, Lucien ; Balsat, Marie ; Simonin, Mathieu ; Huguet, Françoise ; Escoffre-Barbe, Martine ; Pasquier, Florence ; Bonmati, Caroline ; Turlure, Pascal ; Cluzeau, Thomas ; Lebon, Delphine ; Gehlkopf, Eve ; Brissot, Eolia ; Decroocq, Justine ; Chevallier, Patrice ; Chantepie, Sylvain ; Cacheux, Victoria ; Maury, Sebastien ; Chebrek, Safia ; Leguay, Thibaut ; Fort, Melody ; Mauz, Natacha ; Lamarque, Mathlide ; Mathilde, Hunault-Berger ; Wickenhauser, Stefan ; Frayfer, Jamilé ; Banos, Anne ; Tavernier, Emmanuelle ; Caillot, Denis ; Ronchetti, Anne Marie ; Berthon, Celine ; Lengline, Etienne ; Lhéritier, Véronique ; Dombret, Hervé ; Marçais, Ambroise ; Pinton, Antoine ; Andrieu, Guillaume P ; Boissel, Nicolas ; Lhermitte, Ludovic ; Asnafi, Vahid ; Rousselot, Philippe</creatorcontrib><description>Introduction
T-cell acute lymphoblastic leukemia (T-ALL) is an orphan disease diagnosed mostly in adolescent and young adults. In adult population, 5-10% of T-ALL patients (pts) will be primary refractory and 30-40% will relapse. In relapse/refractory (R/R) patients, standard of care treatments, including nelarabine, yield response rate of about 20-40% and responses are of short duration. On behalf of the GRAALL (Group for Research on Adult Acute Lymphoblastic Leukemia), we launched the ALL-TARGET project combining a precision medicine platform dedicated to R/R T-ALL and T-cell lymphoblastic lymphoma (T-LL), and an observatory to evaluate therapeutic proposals based on mutational profile and intracellular signaling pathways alterations.
Objectives and methods
Leukemic samples from pts with R/R T-ALL/LL were shipped to the GRAALL T-ALL central laboratory in France (V. Asnafi, Hôpital Necker). Biological characterization comprised oncogenetic, phenotypic and in some cases functional analysis. Clinical data from R/R T-ALL/LL pts were collected in a real-life observatory (NCT05832125). Adults pts were eligible if an oncogenetic characterization was available at diagnosis or relapse, and if they received a salvage, either with conventional therapy or with a targeted therapeutic option (TTO). For example, TTOs included Tofacitinib and Venetoclax (Tofa/Ven) in case of IL7R (CD127) expression or IL7R-pathway alterations (IL7R ALT), 5-azacytidine and Venetoclax (Aza/Ven) in case of T-ALL/LL with epigenetic regulators alterations (DNMT3A, ASXL1, PHF6, TET2, PRC2, IDH1/2, SRSF2...) or Temsirolimus, Erwinase and Venetoclax (Tem/Erw/Ven) in case of PI3K signaling pathway alterations (PI3K ALT).
The ALL-TARGET Observatory primary endpoint was overall response rate (ORR) including complete remission (CR), CR with incomplete hematological recovery and partial response. We report here the results of the first pts included, with a focus on those who received TTOs as salvage therapy.
Results
Eighty-nine were analyzed, including 80 T-ALL and 9 T-LL. Sex ratio was 3 and median age at diagnosis was 37.5y, and 51y at the time of the first TTO. Seventy-one pts were in relapse (79.7%) and 18 primary refractory (20.2%). Relapses occurred after a median first CR duration of 16.6 months (range: 2.5-92), with 62.8% in bone marrow, 30% in CNS and 30.3% in other extramedullary sites. Phenotype at diagnosis was available for 68 pts, including 36 Early T-cell Precursor (ETP or near-ETP) (52.9%), 6 immature non-ETP (8.8%), 20 cortical (29.4%) and 6 mature phenotype (8.8%). IL7R-expression was available for 53 pts, of whom 40 were IL7R+ (75.5%) and 13 IL7R- (24.5%). Out of 50 samples with available BCL2-expression, 47 were BCL2+ (94%) and 3 BCL2- (6%). IL7R ALT were evidenced in 41 pts (48.2%), PI3K ALT in 21 pts (24.7%), RAS pathway alterations (RAS ALT) in 19 pts (22.4%) and epigenetic dysregulation in 42 pts (49.4%). Ten pts harbored TP53/ATM mutations (11.7%) . These different alterations could coexist. At relapse, 33 phenotypes were reported, showing 22 ETP (66.6%), 2 immature non-ETP (6%) and 9 cortical (27.3%). IL7R-expression was available for 26 pts, among which 21 were IL7R+ (63.6%) and 5 IL7R- (19.2%). NGS was performed in 24 patients, revealing IL7R ALT in 9 pts (37.5%), PI3K ALT in 6 pts (25%), RAS ALT in 5 pts (20.8%) and epigenetic dysregulation in 15 pts (62.5%). Nine patients had TP53 mutations (37.5%).
Twenty-five patients received a TTO, including 14 Aza/Ven (56%), 8 Tofa/Ven (32%), 2 Tem/Erw/Ven (8%) and 1 Trametinib/Ven (4%). Among these, 8 were in first salvage (32%), 10 in 2 nd (40%), and 6 in 3 rd/4 th salvage (28%). Of note, 14 patients received Ven associated with chemotherapy, including 4 Nelarabine-Ven, and 3 Ven in monotherapy.
By 3 months, the cumulative incidence of response under the chosen TTO was 70.7% (95%CI:51-88) (Figure). Ten of 14 patients were in response after Aza/Ven (ORR 71.4%), 4 of 8 patients after Tofa/Ven (50%) and 2 of 2 patients treated with Tem/Erw/Ven (100%). Five patients were bridged to allogeneic stem cell transplantation.
Conclusion
Our results demonstrate the feasibility of the ALL-TARGET project. A better knowledge of the oncogenetic landscape of T-ALL, and a close collaboration between clinicians and biologists, resulted in individualized treatment strategies. With a 3 months cumulative incidence of response of 70%, TTOs appear to be a promising approach in R/R T-ALL.
Cabannes-Hamy:Gilead Kite: Consultancy, Honoraria, Other: support attending meetings; Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings. Huguet:Amgen: Consultancy, Membership on an entity's Board of Directors or advisory committees; Clinign: Consultancy, Membership on an entity's Board of Directors or advisory committees; Gilead: Consultancy, Membership on an entity's Board of Directors or advisory committees; Incyte Corporation: Consultancy, Membership on an entity's Board of Directors or advisory committees; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Pfizer: Consultancy, Membership on an entity's Board of Directors or advisory committees; Servier: Consultancy, Membership on an entity's Board of Directors or advisory committees. Cluzeau:Incyte: Honoraria; Servier: Consultancy, Honoraria, Other: support attending meetings/travel; BluePrint: Consultancy; Bristol Myers Squibb: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings/travel; Astellas: Honoraria; Agios: Consultancy; Novartis: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings/travel; Jazz Pharma: Consultancy, Honoraria; Pfizer: Other: support attending meetings/travel; AbbVie: Consultancy, Other: support attending meetings/travel. Chevallier:Takeda: Honoraria; Incyte: Honoraria, Research Funding; Sanofi: Honoraria; Mallinckrodt Pharmaceuticals: Honoraria; Immedica Pharma: Honoraria; Servier: Honoraria. Mathilde:Clinigen: Honoraria, Membership on an entity's Board of Directors or advisory committees; Incyte: Honoraria, Membership on an entity's Board of Directors or advisory committees; Servier: Honoraria, Membership on an entity's Board of Directors or advisory committees; Novartis: Research Funding; Pfizer: Other: Support for attending meetings. Tavernier:Abbvie: Honoraria. Dombret:Incyte: Honoraria, Other: Support for attending meetings and/or travel, Advisory board; Jazz Pharmaceuticals: Other: Advisory board, Research Funding; Pfizer: Research Funding; Servier: Other: Advisory board, Research Funding; Celegene: Research Funding; Astellas: Research Funding. Boissel:Amgen: Consultancy, Honoraria, Other: Expert Testimony and advisory role, Research Funding; Astellas Pharma: Honoraria; Servier: Consultancy, Honoraria, Other: Advisory role; ARIAD/Incyte: Honoraria; Novartis: Consultancy, Honoraria, Other: Advisory role, Research Funding. Rousselot:Incyte Biosciences: Honoraria, Research Funding.
[Display omitted]</description><identifier>ISSN: 0006-4971</identifier><identifier>EISSN: 1528-0020</identifier><identifier>DOI: 10.1182/blood-2023-179192</identifier><language>eng</language><publisher>Elsevier Inc</publisher><subject>Human health and pathology ; Life Sciences</subject><ispartof>Blood, 2023-11, Vol.142 (Supplement 1), p.518-518</ispartof><rights>2023 The American Society of Hematology</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2192-2ffb277b2e7d227898702b426acd56a393c4c978c5a8c59c4bd56505b826be973</citedby><orcidid>0000-0003-4471-418X ; 0000-0002-4073-1559</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://u-picardie.hal.science/hal-04356877$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Cabannes-Hamy, Aurelie</creatorcontrib><creatorcontrib>Courtois, Lucien</creatorcontrib><creatorcontrib>Balsat, Marie</creatorcontrib><creatorcontrib>Simonin, Mathieu</creatorcontrib><creatorcontrib>Huguet, Françoise</creatorcontrib><creatorcontrib>Escoffre-Barbe, Martine</creatorcontrib><creatorcontrib>Pasquier, Florence</creatorcontrib><creatorcontrib>Bonmati, Caroline</creatorcontrib><creatorcontrib>Turlure, Pascal</creatorcontrib><creatorcontrib>Cluzeau, Thomas</creatorcontrib><creatorcontrib>Lebon, Delphine</creatorcontrib><creatorcontrib>Gehlkopf, Eve</creatorcontrib><creatorcontrib>Brissot, Eolia</creatorcontrib><creatorcontrib>Decroocq, Justine</creatorcontrib><creatorcontrib>Chevallier, Patrice</creatorcontrib><creatorcontrib>Chantepie, Sylvain</creatorcontrib><creatorcontrib>Cacheux, Victoria</creatorcontrib><creatorcontrib>Maury, Sebastien</creatorcontrib><creatorcontrib>Chebrek, Safia</creatorcontrib><creatorcontrib>Leguay, Thibaut</creatorcontrib><creatorcontrib>Fort, Melody</creatorcontrib><creatorcontrib>Mauz, Natacha</creatorcontrib><creatorcontrib>Lamarque, Mathlide</creatorcontrib><creatorcontrib>Mathilde, Hunault-Berger</creatorcontrib><creatorcontrib>Wickenhauser, Stefan</creatorcontrib><creatorcontrib>Frayfer, Jamilé</creatorcontrib><creatorcontrib>Banos, Anne</creatorcontrib><creatorcontrib>Tavernier, Emmanuelle</creatorcontrib><creatorcontrib>Caillot, Denis</creatorcontrib><creatorcontrib>Ronchetti, Anne Marie</creatorcontrib><creatorcontrib>Berthon, Celine</creatorcontrib><creatorcontrib>Lengline, Etienne</creatorcontrib><creatorcontrib>Lhéritier, Véronique</creatorcontrib><creatorcontrib>Dombret, Hervé</creatorcontrib><creatorcontrib>Marçais, Ambroise</creatorcontrib><creatorcontrib>Pinton, Antoine</creatorcontrib><creatorcontrib>Andrieu, Guillaume P</creatorcontrib><creatorcontrib>Boissel, Nicolas</creatorcontrib><creatorcontrib>Lhermitte, Ludovic</creatorcontrib><creatorcontrib>Asnafi, Vahid</creatorcontrib><creatorcontrib>Rousselot, Philippe</creatorcontrib><title>Oncogenetic-Driven Targeted Therapy for Relapsed/Refractory T-Cell Acute Lymphoblastic Leukemia : A French ALL-Target Observatory Report</title><title>Blood</title><description>Introduction
T-cell acute lymphoblastic leukemia (T-ALL) is an orphan disease diagnosed mostly in adolescent and young adults. In adult population, 5-10% of T-ALL patients (pts) will be primary refractory and 30-40% will relapse. In relapse/refractory (R/R) patients, standard of care treatments, including nelarabine, yield response rate of about 20-40% and responses are of short duration. On behalf of the GRAALL (Group for Research on Adult Acute Lymphoblastic Leukemia), we launched the ALL-TARGET project combining a precision medicine platform dedicated to R/R T-ALL and T-cell lymphoblastic lymphoma (T-LL), and an observatory to evaluate therapeutic proposals based on mutational profile and intracellular signaling pathways alterations.
Objectives and methods
Leukemic samples from pts with R/R T-ALL/LL were shipped to the GRAALL T-ALL central laboratory in France (V. Asnafi, Hôpital Necker). Biological characterization comprised oncogenetic, phenotypic and in some cases functional analysis. Clinical data from R/R T-ALL/LL pts were collected in a real-life observatory (NCT05832125). Adults pts were eligible if an oncogenetic characterization was available at diagnosis or relapse, and if they received a salvage, either with conventional therapy or with a targeted therapeutic option (TTO). For example, TTOs included Tofacitinib and Venetoclax (Tofa/Ven) in case of IL7R (CD127) expression or IL7R-pathway alterations (IL7R ALT), 5-azacytidine and Venetoclax (Aza/Ven) in case of T-ALL/LL with epigenetic regulators alterations (DNMT3A, ASXL1, PHF6, TET2, PRC2, IDH1/2, SRSF2...) or Temsirolimus, Erwinase and Venetoclax (Tem/Erw/Ven) in case of PI3K signaling pathway alterations (PI3K ALT).
The ALL-TARGET Observatory primary endpoint was overall response rate (ORR) including complete remission (CR), CR with incomplete hematological recovery and partial response. We report here the results of the first pts included, with a focus on those who received TTOs as salvage therapy.
Results
Eighty-nine were analyzed, including 80 T-ALL and 9 T-LL. Sex ratio was 3 and median age at diagnosis was 37.5y, and 51y at the time of the first TTO. Seventy-one pts were in relapse (79.7%) and 18 primary refractory (20.2%). Relapses occurred after a median first CR duration of 16.6 months (range: 2.5-92), with 62.8% in bone marrow, 30% in CNS and 30.3% in other extramedullary sites. Phenotype at diagnosis was available for 68 pts, including 36 Early T-cell Precursor (ETP or near-ETP) (52.9%), 6 immature non-ETP (8.8%), 20 cortical (29.4%) and 6 mature phenotype (8.8%). IL7R-expression was available for 53 pts, of whom 40 were IL7R+ (75.5%) and 13 IL7R- (24.5%). Out of 50 samples with available BCL2-expression, 47 were BCL2+ (94%) and 3 BCL2- (6%). IL7R ALT were evidenced in 41 pts (48.2%), PI3K ALT in 21 pts (24.7%), RAS pathway alterations (RAS ALT) in 19 pts (22.4%) and epigenetic dysregulation in 42 pts (49.4%). Ten pts harbored TP53/ATM mutations (11.7%) . These different alterations could coexist. At relapse, 33 phenotypes were reported, showing 22 ETP (66.6%), 2 immature non-ETP (6%) and 9 cortical (27.3%). IL7R-expression was available for 26 pts, among which 21 were IL7R+ (63.6%) and 5 IL7R- (19.2%). NGS was performed in 24 patients, revealing IL7R ALT in 9 pts (37.5%), PI3K ALT in 6 pts (25%), RAS ALT in 5 pts (20.8%) and epigenetic dysregulation in 15 pts (62.5%). Nine patients had TP53 mutations (37.5%).
Twenty-five patients received a TTO, including 14 Aza/Ven (56%), 8 Tofa/Ven (32%), 2 Tem/Erw/Ven (8%) and 1 Trametinib/Ven (4%). Among these, 8 were in first salvage (32%), 10 in 2 nd (40%), and 6 in 3 rd/4 th salvage (28%). Of note, 14 patients received Ven associated with chemotherapy, including 4 Nelarabine-Ven, and 3 Ven in monotherapy.
By 3 months, the cumulative incidence of response under the chosen TTO was 70.7% (95%CI:51-88) (Figure). Ten of 14 patients were in response after Aza/Ven (ORR 71.4%), 4 of 8 patients after Tofa/Ven (50%) and 2 of 2 patients treated with Tem/Erw/Ven (100%). Five patients were bridged to allogeneic stem cell transplantation.
Conclusion
Our results demonstrate the feasibility of the ALL-TARGET project. A better knowledge of the oncogenetic landscape of T-ALL, and a close collaboration between clinicians and biologists, resulted in individualized treatment strategies. With a 3 months cumulative incidence of response of 70%, TTOs appear to be a promising approach in R/R T-ALL.
Cabannes-Hamy:Gilead Kite: Consultancy, Honoraria, Other: support attending meetings; Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings. Huguet:Amgen: Consultancy, Membership on an entity's Board of Directors or advisory committees; Clinign: Consultancy, Membership on an entity's Board of Directors or advisory committees; Gilead: Consultancy, Membership on an entity's Board of Directors or advisory committees; Incyte Corporation: Consultancy, Membership on an entity's Board of Directors or advisory committees; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Pfizer: Consultancy, Membership on an entity's Board of Directors or advisory committees; Servier: Consultancy, Membership on an entity's Board of Directors or advisory committees. Cluzeau:Incyte: Honoraria; Servier: Consultancy, Honoraria, Other: support attending meetings/travel; BluePrint: Consultancy; Bristol Myers Squibb: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings/travel; Astellas: Honoraria; Agios: Consultancy; Novartis: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings/travel; Jazz Pharma: Consultancy, Honoraria; Pfizer: Other: support attending meetings/travel; AbbVie: Consultancy, Other: support attending meetings/travel. Chevallier:Takeda: Honoraria; Incyte: Honoraria, Research Funding; Sanofi: Honoraria; Mallinckrodt Pharmaceuticals: Honoraria; Immedica Pharma: Honoraria; Servier: Honoraria. Mathilde:Clinigen: Honoraria, Membership on an entity's Board of Directors or advisory committees; Incyte: Honoraria, Membership on an entity's Board of Directors or advisory committees; Servier: Honoraria, Membership on an entity's Board of Directors or advisory committees; Novartis: Research Funding; Pfizer: Other: Support for attending meetings. Tavernier:Abbvie: Honoraria. Dombret:Incyte: Honoraria, Other: Support for attending meetings and/or travel, Advisory board; Jazz Pharmaceuticals: Other: Advisory board, Research Funding; Pfizer: Research Funding; Servier: Other: Advisory board, Research Funding; Celegene: Research Funding; Astellas: Research Funding. Boissel:Amgen: Consultancy, Honoraria, Other: Expert Testimony and advisory role, Research Funding; Astellas Pharma: Honoraria; Servier: Consultancy, Honoraria, Other: Advisory role; ARIAD/Incyte: Honoraria; Novartis: Consultancy, Honoraria, Other: Advisory role, Research Funding. Rousselot:Incyte Biosciences: Honoraria, Research Funding.
[Display omitted]</description><subject>Human health and pathology</subject><subject>Life Sciences</subject><issn>0006-4971</issn><issn>1528-0020</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kM1KAzEUhYMoWKsP4C5bF7FJ5iczuhqqtcJAodR1SDJ32ui0GZJpoW_gYzvtiEsXlwuHcw6cD6F7Rh8Zy_hEN85VhFMeESZylvMLNGIJzwilnF6iEaU0JXEu2DW6CeGTUhZHPBmh78XOuDXsoLOGvHh7gB1eKb-GDiq82oBX7RHXzuMlNKoNUE2WUHtlOuePeEWm0DS4MPsOcHncthunGxX6KlzC_gu2VuEnXOCZh53Z4KIsydCNFzqAP6hzyxJa57tbdFWrJsDd7x-jj9nrajon5eLtfVqUxPB-FeF1rbkQmoOoOBdZngnKdcxTZaokVVEemdjkIjOJ6i83se7lhCY646mGXERj9DD0blQjW2-3yh-lU1bOi1KeNBpHSZoJcWC9lw1e410IHuq_AKPyhF2escsTdjlg7zPPQwb6EQcLXgZj-_lQWQ-mk5Wz_6R_AISGiwM</recordid><startdate>20231102</startdate><enddate>20231102</enddate><creator>Cabannes-Hamy, Aurelie</creator><creator>Courtois, Lucien</creator><creator>Balsat, Marie</creator><creator>Simonin, Mathieu</creator><creator>Huguet, Françoise</creator><creator>Escoffre-Barbe, Martine</creator><creator>Pasquier, Florence</creator><creator>Bonmati, Caroline</creator><creator>Turlure, Pascal</creator><creator>Cluzeau, Thomas</creator><creator>Lebon, Delphine</creator><creator>Gehlkopf, Eve</creator><creator>Brissot, Eolia</creator><creator>Decroocq, Justine</creator><creator>Chevallier, Patrice</creator><creator>Chantepie, Sylvain</creator><creator>Cacheux, Victoria</creator><creator>Maury, Sebastien</creator><creator>Chebrek, Safia</creator><creator>Leguay, Thibaut</creator><creator>Fort, Melody</creator><creator>Mauz, Natacha</creator><creator>Lamarque, Mathlide</creator><creator>Mathilde, Hunault-Berger</creator><creator>Wickenhauser, Stefan</creator><creator>Frayfer, Jamilé</creator><creator>Banos, Anne</creator><creator>Tavernier, Emmanuelle</creator><creator>Caillot, Denis</creator><creator>Ronchetti, Anne Marie</creator><creator>Berthon, Celine</creator><creator>Lengline, Etienne</creator><creator>Lhéritier, Véronique</creator><creator>Dombret, Hervé</creator><creator>Marçais, Ambroise</creator><creator>Pinton, Antoine</creator><creator>Andrieu, Guillaume P</creator><creator>Boissel, Nicolas</creator><creator>Lhermitte, Ludovic</creator><creator>Asnafi, Vahid</creator><creator>Rousselot, Philippe</creator><general>Elsevier Inc</general><general>American Society of Hematology</general><scope>AAYXX</scope><scope>CITATION</scope><scope>1XC</scope><orcidid>https://orcid.org/0000-0003-4471-418X</orcidid><orcidid>https://orcid.org/0000-0002-4073-1559</orcidid></search><sort><creationdate>20231102</creationdate><title>Oncogenetic-Driven Targeted Therapy for Relapsed/Refractory T-Cell Acute Lymphoblastic Leukemia : A French ALL-Target Observatory Report</title><author>Cabannes-Hamy, Aurelie ; Courtois, Lucien ; Balsat, Marie ; Simonin, Mathieu ; Huguet, Françoise ; Escoffre-Barbe, Martine ; Pasquier, Florence ; Bonmati, Caroline ; Turlure, Pascal ; Cluzeau, Thomas ; Lebon, Delphine ; Gehlkopf, Eve ; Brissot, Eolia ; Decroocq, Justine ; Chevallier, Patrice ; Chantepie, Sylvain ; Cacheux, Victoria ; Maury, Sebastien ; Chebrek, Safia ; Leguay, Thibaut ; Fort, Melody ; Mauz, Natacha ; Lamarque, Mathlide ; Mathilde, Hunault-Berger ; Wickenhauser, Stefan ; Frayfer, Jamilé ; Banos, Anne ; Tavernier, Emmanuelle ; Caillot, Denis ; Ronchetti, Anne Marie ; Berthon, Celine ; Lengline, Etienne ; Lhéritier, Véronique ; Dombret, Hervé ; Marçais, Ambroise ; Pinton, Antoine ; Andrieu, Guillaume P ; Boissel, Nicolas ; Lhermitte, Ludovic ; Asnafi, Vahid ; Rousselot, Philippe</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2192-2ffb277b2e7d227898702b426acd56a393c4c978c5a8c59c4bd56505b826be973</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Human health and pathology</topic><topic>Life Sciences</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cabannes-Hamy, Aurelie</creatorcontrib><creatorcontrib>Courtois, Lucien</creatorcontrib><creatorcontrib>Balsat, Marie</creatorcontrib><creatorcontrib>Simonin, Mathieu</creatorcontrib><creatorcontrib>Huguet, Françoise</creatorcontrib><creatorcontrib>Escoffre-Barbe, Martine</creatorcontrib><creatorcontrib>Pasquier, Florence</creatorcontrib><creatorcontrib>Bonmati, Caroline</creatorcontrib><creatorcontrib>Turlure, Pascal</creatorcontrib><creatorcontrib>Cluzeau, Thomas</creatorcontrib><creatorcontrib>Lebon, Delphine</creatorcontrib><creatorcontrib>Gehlkopf, Eve</creatorcontrib><creatorcontrib>Brissot, Eolia</creatorcontrib><creatorcontrib>Decroocq, Justine</creatorcontrib><creatorcontrib>Chevallier, Patrice</creatorcontrib><creatorcontrib>Chantepie, Sylvain</creatorcontrib><creatorcontrib>Cacheux, Victoria</creatorcontrib><creatorcontrib>Maury, Sebastien</creatorcontrib><creatorcontrib>Chebrek, Safia</creatorcontrib><creatorcontrib>Leguay, Thibaut</creatorcontrib><creatorcontrib>Fort, Melody</creatorcontrib><creatorcontrib>Mauz, Natacha</creatorcontrib><creatorcontrib>Lamarque, Mathlide</creatorcontrib><creatorcontrib>Mathilde, Hunault-Berger</creatorcontrib><creatorcontrib>Wickenhauser, Stefan</creatorcontrib><creatorcontrib>Frayfer, Jamilé</creatorcontrib><creatorcontrib>Banos, Anne</creatorcontrib><creatorcontrib>Tavernier, Emmanuelle</creatorcontrib><creatorcontrib>Caillot, Denis</creatorcontrib><creatorcontrib>Ronchetti, Anne Marie</creatorcontrib><creatorcontrib>Berthon, Celine</creatorcontrib><creatorcontrib>Lengline, Etienne</creatorcontrib><creatorcontrib>Lhéritier, Véronique</creatorcontrib><creatorcontrib>Dombret, Hervé</creatorcontrib><creatorcontrib>Marçais, Ambroise</creatorcontrib><creatorcontrib>Pinton, Antoine</creatorcontrib><creatorcontrib>Andrieu, Guillaume P</creatorcontrib><creatorcontrib>Boissel, Nicolas</creatorcontrib><creatorcontrib>Lhermitte, Ludovic</creatorcontrib><creatorcontrib>Asnafi, Vahid</creatorcontrib><creatorcontrib>Rousselot, Philippe</creatorcontrib><collection>CrossRef</collection><collection>Hyper Article en Ligne (HAL)</collection><jtitle>Blood</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cabannes-Hamy, Aurelie</au><au>Courtois, Lucien</au><au>Balsat, Marie</au><au>Simonin, Mathieu</au><au>Huguet, Françoise</au><au>Escoffre-Barbe, Martine</au><au>Pasquier, Florence</au><au>Bonmati, Caroline</au><au>Turlure, Pascal</au><au>Cluzeau, Thomas</au><au>Lebon, Delphine</au><au>Gehlkopf, Eve</au><au>Brissot, Eolia</au><au>Decroocq, Justine</au><au>Chevallier, Patrice</au><au>Chantepie, Sylvain</au><au>Cacheux, Victoria</au><au>Maury, Sebastien</au><au>Chebrek, Safia</au><au>Leguay, Thibaut</au><au>Fort, Melody</au><au>Mauz, Natacha</au><au>Lamarque, Mathlide</au><au>Mathilde, Hunault-Berger</au><au>Wickenhauser, Stefan</au><au>Frayfer, Jamilé</au><au>Banos, Anne</au><au>Tavernier, Emmanuelle</au><au>Caillot, Denis</au><au>Ronchetti, Anne Marie</au><au>Berthon, Celine</au><au>Lengline, Etienne</au><au>Lhéritier, Véronique</au><au>Dombret, Hervé</au><au>Marçais, Ambroise</au><au>Pinton, Antoine</au><au>Andrieu, Guillaume P</au><au>Boissel, Nicolas</au><au>Lhermitte, Ludovic</au><au>Asnafi, Vahid</au><au>Rousselot, Philippe</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Oncogenetic-Driven Targeted Therapy for Relapsed/Refractory T-Cell Acute Lymphoblastic Leukemia : A French ALL-Target Observatory Report</atitle><jtitle>Blood</jtitle><date>2023-11-02</date><risdate>2023</risdate><volume>142</volume><issue>Supplement 1</issue><spage>518</spage><epage>518</epage><pages>518-518</pages><issn>0006-4971</issn><eissn>1528-0020</eissn><abstract>Introduction
T-cell acute lymphoblastic leukemia (T-ALL) is an orphan disease diagnosed mostly in adolescent and young adults. In adult population, 5-10% of T-ALL patients (pts) will be primary refractory and 30-40% will relapse. In relapse/refractory (R/R) patients, standard of care treatments, including nelarabine, yield response rate of about 20-40% and responses are of short duration. On behalf of the GRAALL (Group for Research on Adult Acute Lymphoblastic Leukemia), we launched the ALL-TARGET project combining a precision medicine platform dedicated to R/R T-ALL and T-cell lymphoblastic lymphoma (T-LL), and an observatory to evaluate therapeutic proposals based on mutational profile and intracellular signaling pathways alterations.
Objectives and methods
Leukemic samples from pts with R/R T-ALL/LL were shipped to the GRAALL T-ALL central laboratory in France (V. Asnafi, Hôpital Necker). Biological characterization comprised oncogenetic, phenotypic and in some cases functional analysis. Clinical data from R/R T-ALL/LL pts were collected in a real-life observatory (NCT05832125). Adults pts were eligible if an oncogenetic characterization was available at diagnosis or relapse, and if they received a salvage, either with conventional therapy or with a targeted therapeutic option (TTO). For example, TTOs included Tofacitinib and Venetoclax (Tofa/Ven) in case of IL7R (CD127) expression or IL7R-pathway alterations (IL7R ALT), 5-azacytidine and Venetoclax (Aza/Ven) in case of T-ALL/LL with epigenetic regulators alterations (DNMT3A, ASXL1, PHF6, TET2, PRC2, IDH1/2, SRSF2...) or Temsirolimus, Erwinase and Venetoclax (Tem/Erw/Ven) in case of PI3K signaling pathway alterations (PI3K ALT).
The ALL-TARGET Observatory primary endpoint was overall response rate (ORR) including complete remission (CR), CR with incomplete hematological recovery and partial response. We report here the results of the first pts included, with a focus on those who received TTOs as salvage therapy.
Results
Eighty-nine were analyzed, including 80 T-ALL and 9 T-LL. Sex ratio was 3 and median age at diagnosis was 37.5y, and 51y at the time of the first TTO. Seventy-one pts were in relapse (79.7%) and 18 primary refractory (20.2%). Relapses occurred after a median first CR duration of 16.6 months (range: 2.5-92), with 62.8% in bone marrow, 30% in CNS and 30.3% in other extramedullary sites. Phenotype at diagnosis was available for 68 pts, including 36 Early T-cell Precursor (ETP or near-ETP) (52.9%), 6 immature non-ETP (8.8%), 20 cortical (29.4%) and 6 mature phenotype (8.8%). IL7R-expression was available for 53 pts, of whom 40 were IL7R+ (75.5%) and 13 IL7R- (24.5%). Out of 50 samples with available BCL2-expression, 47 were BCL2+ (94%) and 3 BCL2- (6%). IL7R ALT were evidenced in 41 pts (48.2%), PI3K ALT in 21 pts (24.7%), RAS pathway alterations (RAS ALT) in 19 pts (22.4%) and epigenetic dysregulation in 42 pts (49.4%). Ten pts harbored TP53/ATM mutations (11.7%) . These different alterations could coexist. At relapse, 33 phenotypes were reported, showing 22 ETP (66.6%), 2 immature non-ETP (6%) and 9 cortical (27.3%). IL7R-expression was available for 26 pts, among which 21 were IL7R+ (63.6%) and 5 IL7R- (19.2%). NGS was performed in 24 patients, revealing IL7R ALT in 9 pts (37.5%), PI3K ALT in 6 pts (25%), RAS ALT in 5 pts (20.8%) and epigenetic dysregulation in 15 pts (62.5%). Nine patients had TP53 mutations (37.5%).
Twenty-five patients received a TTO, including 14 Aza/Ven (56%), 8 Tofa/Ven (32%), 2 Tem/Erw/Ven (8%) and 1 Trametinib/Ven (4%). Among these, 8 were in first salvage (32%), 10 in 2 nd (40%), and 6 in 3 rd/4 th salvage (28%). Of note, 14 patients received Ven associated with chemotherapy, including 4 Nelarabine-Ven, and 3 Ven in monotherapy.
By 3 months, the cumulative incidence of response under the chosen TTO was 70.7% (95%CI:51-88) (Figure). Ten of 14 patients were in response after Aza/Ven (ORR 71.4%), 4 of 8 patients after Tofa/Ven (50%) and 2 of 2 patients treated with Tem/Erw/Ven (100%). Five patients were bridged to allogeneic stem cell transplantation.
Conclusion
Our results demonstrate the feasibility of the ALL-TARGET project. A better knowledge of the oncogenetic landscape of T-ALL, and a close collaboration between clinicians and biologists, resulted in individualized treatment strategies. With a 3 months cumulative incidence of response of 70%, TTOs appear to be a promising approach in R/R T-ALL.
Cabannes-Hamy:Gilead Kite: Consultancy, Honoraria, Other: support attending meetings; Novartis: Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings. Huguet:Amgen: Consultancy, Membership on an entity's Board of Directors or advisory committees; Clinign: Consultancy, Membership on an entity's Board of Directors or advisory committees; Gilead: Consultancy, Membership on an entity's Board of Directors or advisory committees; Incyte Corporation: Consultancy, Membership on an entity's Board of Directors or advisory committees; Novartis: Consultancy, Membership on an entity's Board of Directors or advisory committees; Pfizer: Consultancy, Membership on an entity's Board of Directors or advisory committees; Servier: Consultancy, Membership on an entity's Board of Directors or advisory committees. Cluzeau:Incyte: Honoraria; Servier: Consultancy, Honoraria, Other: support attending meetings/travel; BluePrint: Consultancy; Bristol Myers Squibb: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings/travel; Astellas: Honoraria; Agios: Consultancy; Novartis: Consultancy, Honoraria, Membership on an entity's Board of Directors or advisory committees, Other: support attending meetings/travel; Jazz Pharma: Consultancy, Honoraria; Pfizer: Other: support attending meetings/travel; AbbVie: Consultancy, Other: support attending meetings/travel. Chevallier:Takeda: Honoraria; Incyte: Honoraria, Research Funding; Sanofi: Honoraria; Mallinckrodt Pharmaceuticals: Honoraria; Immedica Pharma: Honoraria; Servier: Honoraria. Mathilde:Clinigen: Honoraria, Membership on an entity's Board of Directors or advisory committees; Incyte: Honoraria, Membership on an entity's Board of Directors or advisory committees; Servier: Honoraria, Membership on an entity's Board of Directors or advisory committees; Novartis: Research Funding; Pfizer: Other: Support for attending meetings. Tavernier:Abbvie: Honoraria. Dombret:Incyte: Honoraria, Other: Support for attending meetings and/or travel, Advisory board; Jazz Pharmaceuticals: Other: Advisory board, Research Funding; Pfizer: Research Funding; Servier: Other: Advisory board, Research Funding; Celegene: Research Funding; Astellas: Research Funding. Boissel:Amgen: Consultancy, Honoraria, Other: Expert Testimony and advisory role, Research Funding; Astellas Pharma: Honoraria; Servier: Consultancy, Honoraria, Other: Advisory role; ARIAD/Incyte: Honoraria; Novartis: Consultancy, Honoraria, Other: Advisory role, Research Funding. Rousselot:Incyte Biosciences: Honoraria, Research Funding.
[Display omitted]</abstract><pub>Elsevier Inc</pub><doi>10.1182/blood-2023-179192</doi><tpages>1</tpages><orcidid>https://orcid.org/0000-0003-4471-418X</orcidid><orcidid>https://orcid.org/0000-0002-4073-1559</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Human health and pathology Life Sciences |
| title | Oncogenetic-Driven Targeted Therapy for Relapsed/Refractory T-Cell Acute Lymphoblastic Leukemia : A French ALL-Target Observatory Report |
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