Treatment Challenges in Acute Myeloid Leukemia in Lower-Middle-Income Countries: Navigating Intensity, Affordability, and Infections
Introduction: Acute Myeloid Leukemia (AML) is a highly aggressive and genetically heterogeneous hematologic malignancy with a potentially fatal outcome if left untreated. The standard treatment, the 7+3 regimen, involving intensive chemotherapy, has been the cornerstone of therapy for decades. Howev...
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| Veröffentlicht in: | Blood 2023-11, Vol.142 (Supplement 1), p.5180-5180 |
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| creator | Yadav, Chitresh Unni, Manoj Paul, Mobin Harimadhavan, Monisha Ganapathy, Rema Haridas, Nikhil Krishna V.S., Sheejamol Sreenaryanan, Chitra Yawalkar, Rashmi Mony, Ullas Sidharthan, Neeraj |
| description | Introduction:
Acute Myeloid Leukemia (AML) is a highly aggressive and genetically heterogeneous hematologic malignancy with a potentially fatal outcome if left untreated. The standard treatment, the 7+3 regimen, involving intensive chemotherapy, has been the cornerstone of therapy for decades. However, this approach poses challenges, especially for older patients and those with comorbidities. In lower-middle-income countries like India, managing AML becomes even more complex due to delayed diagnosis, increased infections, financial constraints and limited access to newer targeted therapies.
Methods:
This retrospective study aimed to investigate treatment scenarios and outcomes for two induction regimens, the standard 7+3 and Azacitidine+Venetoclax (Aza+ven), in newly diagnosed AML patients in a lower-middle-income setting from January 2018 to May 2023, conducted after institute ethical clearance. Included were treatment-naïve AML patients aged 14 years and above undergoing induction treatment with either regimen. Exclusion criteria comprised Acute promyelocytic leukemia, relapsed/refractory cases, prior chemotherapy, and incomplete records. Baseline data, ELN prognostic scores, and treatment responses were recorded. Morphological remission and multiparametric flowcytometry based measurable residual disease (MRD) were assessed after one induction. Cytarabine 100mg/m2 I.V. continuous infusion x 7 days; Daunorubicin 60mg/m2 I.V. x 3 days; Azacitidine 75 mg/m2 I.V. x 7 days; Venetoclax 100mg x 14-28 days. Both groups received posaconazole antifungal prophylaxis. Complications were graded according to CTCAE Version 5. The data were analyzed using SPSS Statistics 20. Continuous variables presented as mean ± SD, categorical variables as frequency (%). Normality was checked with the Kolmogorov-Smirnov test, using T-tests for continuous variables and chi-square for categorical variables. Kaplan-Meier for survival. Cox PH regression for prognostic factors (p < 0.05, two-tailed).
Results:
A total of 422 new patients were diagnosed with AML; 212 (50.2%) patients opted for treatment, and 210 (49.8%) patients opted out. The most common reason was economic constraint (39%), followed by distance to the treatment centre (19%). Out of 212, only 138 (32.7%) received either of the induction regimens; still, 13 (9.3%) of patients were not included for analysis in accordance with the exclusion criteria. The study included 99 AML patients, with 71 on 7+3 and 28 on Aza+ven. Both |
| doi_str_mv | 10.1182/blood-2023-186818 |
| format | Article |
| fullrecord | <record><control><sourceid>elsevier_cross</sourceid><recordid>TN_cdi_crossref_primary_10_1182_blood_2023_186818</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0006497123117812</els_id><sourcerecordid>S0006497123117812</sourcerecordid><originalsourceid>FETCH-LOGICAL-c1378-bd6f8a39995d8bf75aacc15fb5f8702e4ce94157d0512d14b17f1ce2bd236793</originalsourceid><addsrcrecordid>eNp9kLtOAzEQRS0EEiHwAXT-AAwe78sLVRTxiJRAk37ltcfBsGsjexOUng8nD2qq0ejqXF0dQq6B3wJIcdd2IRgmuMgYyFKCPCEjKIRknAt-Skac85LldQXn5CKlD84hz0QxIj_LiGro0Q90-q66Dv0KE3WeTvR6QLrYYhecoXNcf2Lv1D6Zh2-MbOGM6ZDNvA490mlY-yE6TPf0VW3cSg3Or-jMD-iTG7Y3dGJtiEa1rju8yptdalEPLvh0Sc6s6hJe_d0xWT49LqcvbP72PJtO5kxDVknWmtJKldV1XRjZ2qpQSmsobFtYWXGBucY6h6IyvABhIG-hsqBRtEZkZVVnYwLHWh1DShFt8xVdr-K2Ad7sLTYHi83eYnO0uGMejgzudm0cxiZph16jcXG3vjHB_UP_AhrpfOA</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Treatment Challenges in Acute Myeloid Leukemia in Lower-Middle-Income Countries: Navigating Intensity, Affordability, and Infections</title><source>EZB-FREE-00999 freely available EZB journals</source><source>Alma/SFX Local Collection</source><creator>Yadav, Chitresh ; Unni, Manoj ; Paul, Mobin ; Harimadhavan, Monisha ; Ganapathy, Rema ; Haridas, Nikhil Krishna ; V.S., Sheejamol ; Sreenaryanan, Chitra ; Yawalkar, Rashmi ; Mony, Ullas ; Sidharthan, Neeraj</creator><creatorcontrib>Yadav, Chitresh ; Unni, Manoj ; Paul, Mobin ; Harimadhavan, Monisha ; Ganapathy, Rema ; Haridas, Nikhil Krishna ; V.S., Sheejamol ; Sreenaryanan, Chitra ; Yawalkar, Rashmi ; Mony, Ullas ; Sidharthan, Neeraj</creatorcontrib><description>Introduction:
Acute Myeloid Leukemia (AML) is a highly aggressive and genetically heterogeneous hematologic malignancy with a potentially fatal outcome if left untreated. The standard treatment, the 7+3 regimen, involving intensive chemotherapy, has been the cornerstone of therapy for decades. However, this approach poses challenges, especially for older patients and those with comorbidities. In lower-middle-income countries like India, managing AML becomes even more complex due to delayed diagnosis, increased infections, financial constraints and limited access to newer targeted therapies.
Methods:
This retrospective study aimed to investigate treatment scenarios and outcomes for two induction regimens, the standard 7+3 and Azacitidine+Venetoclax (Aza+ven), in newly diagnosed AML patients in a lower-middle-income setting from January 2018 to May 2023, conducted after institute ethical clearance. Included were treatment-naïve AML patients aged 14 years and above undergoing induction treatment with either regimen. Exclusion criteria comprised Acute promyelocytic leukemia, relapsed/refractory cases, prior chemotherapy, and incomplete records. Baseline data, ELN prognostic scores, and treatment responses were recorded. Morphological remission and multiparametric flowcytometry based measurable residual disease (MRD) were assessed after one induction. Cytarabine 100mg/m2 I.V. continuous infusion x 7 days; Daunorubicin 60mg/m2 I.V. x 3 days; Azacitidine 75 mg/m2 I.V. x 7 days; Venetoclax 100mg x 14-28 days. Both groups received posaconazole antifungal prophylaxis. Complications were graded according to CTCAE Version 5. The data were analyzed using SPSS Statistics 20. Continuous variables presented as mean ± SD, categorical variables as frequency (%). Normality was checked with the Kolmogorov-Smirnov test, using T-tests for continuous variables and chi-square for categorical variables. Kaplan-Meier for survival. Cox PH regression for prognostic factors (p < 0.05, two-tailed).
Results:
A total of 422 new patients were diagnosed with AML; 212 (50.2%) patients opted for treatment, and 210 (49.8%) patients opted out. The most common reason was economic constraint (39%), followed by distance to the treatment centre (19%). Out of 212, only 138 (32.7%) received either of the induction regimens; still, 13 (9.3%) of patients were not included for analysis in accordance with the exclusion criteria. The study included 99 AML patients, with 71 on 7+3 and 28 on Aza+ven. Both groups were comparable in gender distribution, AML type, ELN prognostic risk, molecular mutations, and extramedullary disease. However, the Aza+ven group had significantly older patients (56.6 years vs. 41.8 years in 7+3, p <0.001) and exhibited more baseline infections (2.8% vs. 60%, p = 0.001), and poorer ECOG performance scores (p = 0.001). Despite these differences, the Aza+ven group had reduced complications like febrile neutropenia (53.6% vs. 93%, p<0.001), bacterial sepsis (14.3% vs. 39.4%, p = 0.012), gastric intolerance grade 2 and above (7% vs. 46.5%, p<0.001), decreased transfusion requirements(p<0.001), and a comparable complete remission rate of 63.7% in Aza+ven vs. 64.8% in 7+3 (p = 0.96), Patients achieving remission (CR) regardless of regimen used led to overall survival benefits (43 ± 4.5 months vs. 25 ± 4.3 months in patients not achieving remission, p=0.012) shown in figure 1, similarly stem cell transplantation had survival benefit over other consolidation chemotherapies (47 ± 5.9 months vs. 30 ± 3.9 months, p=0.009), The average unaided treatment cost per cycle of Aza+ven was 7352 ± 4530 USD vs. 9237 ± 5939 USD, p= 0.229. Table 1 enlist the baseline characteristics and outcomes summary between the two groups.
Conclusion:
This study highlights treatment challenges in AML management in lower-middle-income countries, with a significant number of patients unable to access timely care at the diagnosis center. The Aza+ven regimen showed promise, offering benefits over the standard 7+3, especially for unfit and older patients. Addressing barriers to treatment accessibility and affordability is vital to improve AML outcomes in resource-limited regions. Further research, including larger prospective studies, is needed to validate the Aza+ven regimen's efficacy and long-term outcomes in this context, offering hope for a better outlook for AML patients facing this aggressive malignancy.
No relevant conflicts of interest to declare.
[Display omitted]</description><identifier>ISSN: 0006-4971</identifier><identifier>EISSN: 1528-0020</identifier><identifier>DOI: 10.1182/blood-2023-186818</identifier><language>eng</language><publisher>Elsevier Inc</publisher><ispartof>Blood, 2023-11, Vol.142 (Supplement 1), p.5180-5180</ispartof><rights>2023 The American Society of Hematology</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Yadav, Chitresh</creatorcontrib><creatorcontrib>Unni, Manoj</creatorcontrib><creatorcontrib>Paul, Mobin</creatorcontrib><creatorcontrib>Harimadhavan, Monisha</creatorcontrib><creatorcontrib>Ganapathy, Rema</creatorcontrib><creatorcontrib>Haridas, Nikhil Krishna</creatorcontrib><creatorcontrib>V.S., Sheejamol</creatorcontrib><creatorcontrib>Sreenaryanan, Chitra</creatorcontrib><creatorcontrib>Yawalkar, Rashmi</creatorcontrib><creatorcontrib>Mony, Ullas</creatorcontrib><creatorcontrib>Sidharthan, Neeraj</creatorcontrib><title>Treatment Challenges in Acute Myeloid Leukemia in Lower-Middle-Income Countries: Navigating Intensity, Affordability, and Infections</title><title>Blood</title><description>Introduction:
Acute Myeloid Leukemia (AML) is a highly aggressive and genetically heterogeneous hematologic malignancy with a potentially fatal outcome if left untreated. The standard treatment, the 7+3 regimen, involving intensive chemotherapy, has been the cornerstone of therapy for decades. However, this approach poses challenges, especially for older patients and those with comorbidities. In lower-middle-income countries like India, managing AML becomes even more complex due to delayed diagnosis, increased infections, financial constraints and limited access to newer targeted therapies.
Methods:
This retrospective study aimed to investigate treatment scenarios and outcomes for two induction regimens, the standard 7+3 and Azacitidine+Venetoclax (Aza+ven), in newly diagnosed AML patients in a lower-middle-income setting from January 2018 to May 2023, conducted after institute ethical clearance. Included were treatment-naïve AML patients aged 14 years and above undergoing induction treatment with either regimen. Exclusion criteria comprised Acute promyelocytic leukemia, relapsed/refractory cases, prior chemotherapy, and incomplete records. Baseline data, ELN prognostic scores, and treatment responses were recorded. Morphological remission and multiparametric flowcytometry based measurable residual disease (MRD) were assessed after one induction. Cytarabine 100mg/m2 I.V. continuous infusion x 7 days; Daunorubicin 60mg/m2 I.V. x 3 days; Azacitidine 75 mg/m2 I.V. x 7 days; Venetoclax 100mg x 14-28 days. Both groups received posaconazole antifungal prophylaxis. Complications were graded according to CTCAE Version 5. The data were analyzed using SPSS Statistics 20. Continuous variables presented as mean ± SD, categorical variables as frequency (%). Normality was checked with the Kolmogorov-Smirnov test, using T-tests for continuous variables and chi-square for categorical variables. Kaplan-Meier for survival. Cox PH regression for prognostic factors (p < 0.05, two-tailed).
Results:
A total of 422 new patients were diagnosed with AML; 212 (50.2%) patients opted for treatment, and 210 (49.8%) patients opted out. The most common reason was economic constraint (39%), followed by distance to the treatment centre (19%). Out of 212, only 138 (32.7%) received either of the induction regimens; still, 13 (9.3%) of patients were not included for analysis in accordance with the exclusion criteria. The study included 99 AML patients, with 71 on 7+3 and 28 on Aza+ven. Both groups were comparable in gender distribution, AML type, ELN prognostic risk, molecular mutations, and extramedullary disease. However, the Aza+ven group had significantly older patients (56.6 years vs. 41.8 years in 7+3, p <0.001) and exhibited more baseline infections (2.8% vs. 60%, p = 0.001), and poorer ECOG performance scores (p = 0.001). Despite these differences, the Aza+ven group had reduced complications like febrile neutropenia (53.6% vs. 93%, p<0.001), bacterial sepsis (14.3% vs. 39.4%, p = 0.012), gastric intolerance grade 2 and above (7% vs. 46.5%, p<0.001), decreased transfusion requirements(p<0.001), and a comparable complete remission rate of 63.7% in Aza+ven vs. 64.8% in 7+3 (p = 0.96), Patients achieving remission (CR) regardless of regimen used led to overall survival benefits (43 ± 4.5 months vs. 25 ± 4.3 months in patients not achieving remission, p=0.012) shown in figure 1, similarly stem cell transplantation had survival benefit over other consolidation chemotherapies (47 ± 5.9 months vs. 30 ± 3.9 months, p=0.009), The average unaided treatment cost per cycle of Aza+ven was 7352 ± 4530 USD vs. 9237 ± 5939 USD, p= 0.229. Table 1 enlist the baseline characteristics and outcomes summary between the two groups.
Conclusion:
This study highlights treatment challenges in AML management in lower-middle-income countries, with a significant number of patients unable to access timely care at the diagnosis center. The Aza+ven regimen showed promise, offering benefits over the standard 7+3, especially for unfit and older patients. Addressing barriers to treatment accessibility and affordability is vital to improve AML outcomes in resource-limited regions. Further research, including larger prospective studies, is needed to validate the Aza+ven regimen's efficacy and long-term outcomes in this context, offering hope for a better outlook for AML patients facing this aggressive malignancy.
No relevant conflicts of interest to declare.
[Display omitted]</description><issn>0006-4971</issn><issn>1528-0020</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp9kLtOAzEQRS0EEiHwAXT-AAwe78sLVRTxiJRAk37ltcfBsGsjexOUng8nD2qq0ejqXF0dQq6B3wJIcdd2IRgmuMgYyFKCPCEjKIRknAt-Skac85LldQXn5CKlD84hz0QxIj_LiGro0Q90-q66Dv0KE3WeTvR6QLrYYhecoXNcf2Lv1D6Zh2-MbOGM6ZDNvA490mlY-yE6TPf0VW3cSg3Or-jMD-iTG7Y3dGJtiEa1rju8yptdalEPLvh0Sc6s6hJe_d0xWT49LqcvbP72PJtO5kxDVknWmtJKldV1XRjZ2qpQSmsobFtYWXGBucY6h6IyvABhIG-hsqBRtEZkZVVnYwLHWh1DShFt8xVdr-K2Ad7sLTYHi83eYnO0uGMejgzudm0cxiZph16jcXG3vjHB_UP_AhrpfOA</recordid><startdate>20231102</startdate><enddate>20231102</enddate><creator>Yadav, Chitresh</creator><creator>Unni, Manoj</creator><creator>Paul, Mobin</creator><creator>Harimadhavan, Monisha</creator><creator>Ganapathy, Rema</creator><creator>Haridas, Nikhil Krishna</creator><creator>V.S., Sheejamol</creator><creator>Sreenaryanan, Chitra</creator><creator>Yawalkar, Rashmi</creator><creator>Mony, Ullas</creator><creator>Sidharthan, Neeraj</creator><general>Elsevier Inc</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20231102</creationdate><title>Treatment Challenges in Acute Myeloid Leukemia in Lower-Middle-Income Countries: Navigating Intensity, Affordability, and Infections</title><author>Yadav, Chitresh ; Unni, Manoj ; Paul, Mobin ; Harimadhavan, Monisha ; Ganapathy, Rema ; Haridas, Nikhil Krishna ; V.S., Sheejamol ; Sreenaryanan, Chitra ; Yawalkar, Rashmi ; Mony, Ullas ; Sidharthan, Neeraj</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c1378-bd6f8a39995d8bf75aacc15fb5f8702e4ce94157d0512d14b17f1ce2bd236793</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yadav, Chitresh</creatorcontrib><creatorcontrib>Unni, Manoj</creatorcontrib><creatorcontrib>Paul, Mobin</creatorcontrib><creatorcontrib>Harimadhavan, Monisha</creatorcontrib><creatorcontrib>Ganapathy, Rema</creatorcontrib><creatorcontrib>Haridas, Nikhil Krishna</creatorcontrib><creatorcontrib>V.S., Sheejamol</creatorcontrib><creatorcontrib>Sreenaryanan, Chitra</creatorcontrib><creatorcontrib>Yawalkar, Rashmi</creatorcontrib><creatorcontrib>Mony, Ullas</creatorcontrib><creatorcontrib>Sidharthan, Neeraj</creatorcontrib><collection>CrossRef</collection><jtitle>Blood</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yadav, Chitresh</au><au>Unni, Manoj</au><au>Paul, Mobin</au><au>Harimadhavan, Monisha</au><au>Ganapathy, Rema</au><au>Haridas, Nikhil Krishna</au><au>V.S., Sheejamol</au><au>Sreenaryanan, Chitra</au><au>Yawalkar, Rashmi</au><au>Mony, Ullas</au><au>Sidharthan, Neeraj</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Treatment Challenges in Acute Myeloid Leukemia in Lower-Middle-Income Countries: Navigating Intensity, Affordability, and Infections</atitle><jtitle>Blood</jtitle><date>2023-11-02</date><risdate>2023</risdate><volume>142</volume><issue>Supplement 1</issue><spage>5180</spage><epage>5180</epage><pages>5180-5180</pages><issn>0006-4971</issn><eissn>1528-0020</eissn><abstract>Introduction:
Acute Myeloid Leukemia (AML) is a highly aggressive and genetically heterogeneous hematologic malignancy with a potentially fatal outcome if left untreated. The standard treatment, the 7+3 regimen, involving intensive chemotherapy, has been the cornerstone of therapy for decades. However, this approach poses challenges, especially for older patients and those with comorbidities. In lower-middle-income countries like India, managing AML becomes even more complex due to delayed diagnosis, increased infections, financial constraints and limited access to newer targeted therapies.
Methods:
This retrospective study aimed to investigate treatment scenarios and outcomes for two induction regimens, the standard 7+3 and Azacitidine+Venetoclax (Aza+ven), in newly diagnosed AML patients in a lower-middle-income setting from January 2018 to May 2023, conducted after institute ethical clearance. Included were treatment-naïve AML patients aged 14 years and above undergoing induction treatment with either regimen. Exclusion criteria comprised Acute promyelocytic leukemia, relapsed/refractory cases, prior chemotherapy, and incomplete records. Baseline data, ELN prognostic scores, and treatment responses were recorded. Morphological remission and multiparametric flowcytometry based measurable residual disease (MRD) were assessed after one induction. Cytarabine 100mg/m2 I.V. continuous infusion x 7 days; Daunorubicin 60mg/m2 I.V. x 3 days; Azacitidine 75 mg/m2 I.V. x 7 days; Venetoclax 100mg x 14-28 days. Both groups received posaconazole antifungal prophylaxis. Complications were graded according to CTCAE Version 5. The data were analyzed using SPSS Statistics 20. Continuous variables presented as mean ± SD, categorical variables as frequency (%). Normality was checked with the Kolmogorov-Smirnov test, using T-tests for continuous variables and chi-square for categorical variables. Kaplan-Meier for survival. Cox PH regression for prognostic factors (p < 0.05, two-tailed).
Results:
A total of 422 new patients were diagnosed with AML; 212 (50.2%) patients opted for treatment, and 210 (49.8%) patients opted out. The most common reason was economic constraint (39%), followed by distance to the treatment centre (19%). Out of 212, only 138 (32.7%) received either of the induction regimens; still, 13 (9.3%) of patients were not included for analysis in accordance with the exclusion criteria. The study included 99 AML patients, with 71 on 7+3 and 28 on Aza+ven. Both groups were comparable in gender distribution, AML type, ELN prognostic risk, molecular mutations, and extramedullary disease. However, the Aza+ven group had significantly older patients (56.6 years vs. 41.8 years in 7+3, p <0.001) and exhibited more baseline infections (2.8% vs. 60%, p = 0.001), and poorer ECOG performance scores (p = 0.001). Despite these differences, the Aza+ven group had reduced complications like febrile neutropenia (53.6% vs. 93%, p<0.001), bacterial sepsis (14.3% vs. 39.4%, p = 0.012), gastric intolerance grade 2 and above (7% vs. 46.5%, p<0.001), decreased transfusion requirements(p<0.001), and a comparable complete remission rate of 63.7% in Aza+ven vs. 64.8% in 7+3 (p = 0.96), Patients achieving remission (CR) regardless of regimen used led to overall survival benefits (43 ± 4.5 months vs. 25 ± 4.3 months in patients not achieving remission, p=0.012) shown in figure 1, similarly stem cell transplantation had survival benefit over other consolidation chemotherapies (47 ± 5.9 months vs. 30 ± 3.9 months, p=0.009), The average unaided treatment cost per cycle of Aza+ven was 7352 ± 4530 USD vs. 9237 ± 5939 USD, p= 0.229. Table 1 enlist the baseline characteristics and outcomes summary between the two groups.
Conclusion:
This study highlights treatment challenges in AML management in lower-middle-income countries, with a significant number of patients unable to access timely care at the diagnosis center. The Aza+ven regimen showed promise, offering benefits over the standard 7+3, especially for unfit and older patients. Addressing barriers to treatment accessibility and affordability is vital to improve AML outcomes in resource-limited regions. Further research, including larger prospective studies, is needed to validate the Aza+ven regimen's efficacy and long-term outcomes in this context, offering hope for a better outlook for AML patients facing this aggressive malignancy.
No relevant conflicts of interest to declare.
[Display omitted]</abstract><pub>Elsevier Inc</pub><doi>10.1182/blood-2023-186818</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| title | Treatment Challenges in Acute Myeloid Leukemia in Lower-Middle-Income Countries: Navigating Intensity, Affordability, and Infections |
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