Effectiveness of rectal artesunate as pre-referral treatment for severe malaria in children under 5 years of age: a multi-country observational study

Abstract Background To prevent child deaths from severe malaria, early parenteral treatment is essential. Yet, in remote rural areas, accessing facilities offering parenteral antimalarials may be difficult. A randomised controlled trial found pre-referral treatment with rectal artesunate (RAS) to re...

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Main Authors: Manuel W. Hetzel, Jean Okitawutshu, Antoinette Tshefu, Elizabeth Omoluabi, Phyllis Awor, Aita Signorell, Nina C. Brunner, Jean-Claude Kalenga, Babatunde K. Akano, Kazeem Ayodeji, Charles Okon, Ocheche Yusuf, Proscovia Athieno, Joseph Kimera, Gloria Tumukunde, Irene Angiro, Giulia Delvento, Tristan T. Lee, Mark J. Lambiris, Marek Kwiatkowski, Nadja Cereghetti, Theodoor Visser, Harriet G. Napier, Justin M. Cohen, Valentina Buj, Christian Burri, Christian Lengeler
Format: Article
Language:English
Published: BMC 2022-10-01
Series:BMC Medicine
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Online Access:https://doi.org/10.1186/s12916-022-02541-8
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author Manuel W. Hetzel
Jean Okitawutshu
Antoinette Tshefu
Elizabeth Omoluabi
Phyllis Awor
Aita Signorell
Nina C. Brunner
Jean-Claude Kalenga
Babatunde K. Akano
Kazeem Ayodeji
Charles Okon
Ocheche Yusuf
Proscovia Athieno
Joseph Kimera
Gloria Tumukunde
Irene Angiro
Giulia Delvento
Tristan T. Lee
Mark J. Lambiris
Marek Kwiatkowski
Nadja Cereghetti
Theodoor Visser
Harriet G. Napier
Justin M. Cohen
Valentina Buj
Christian Burri
Christian Lengeler
author_facet Manuel W. Hetzel
Jean Okitawutshu
Antoinette Tshefu
Elizabeth Omoluabi
Phyllis Awor
Aita Signorell
Nina C. Brunner
Jean-Claude Kalenga
Babatunde K. Akano
Kazeem Ayodeji
Charles Okon
Ocheche Yusuf
Proscovia Athieno
Joseph Kimera
Gloria Tumukunde
Irene Angiro
Giulia Delvento
Tristan T. Lee
Mark J. Lambiris
Marek Kwiatkowski
Nadja Cereghetti
Theodoor Visser
Harriet G. Napier
Justin M. Cohen
Valentina Buj
Christian Burri
Christian Lengeler
author_sort Manuel W. Hetzel
collection DOAJ
description Abstract Background To prevent child deaths from severe malaria, early parenteral treatment is essential. Yet, in remote rural areas, accessing facilities offering parenteral antimalarials may be difficult. A randomised controlled trial found pre-referral treatment with rectal artesunate (RAS) to reduce deaths and disability in children who arrived at a referral facility with delay. This study examined the effectiveness of pre-referral RAS treatment implemented through routine procedures of established community-based health care systems. Methods An observational study accompanied the roll-out of RAS in the Democratic Republic of the Congo (DRC), Nigeria and Uganda. Children <5 years of age presenting to a community-based health provider with a positive malaria test and signs of severe malaria were enrolled and followed up during admission and after 28 days to assess their health status and treatment history. The primary outcome was death; covariates of interest included RAS use, referral completion, and post-referral treatment. Results Post-roll-out, RAS was administered to 88% of patients in DRC, 52% in Nigeria, and 70% in Uganda. The overall case fatality rate (CFR) was 6.7% (135/2011) in DRC, 11.7% (69/589) in Nigeria, and 0.5% (19/3686) in Uganda; 13.8% (865/6286) of patients were sick on day 28. The CFR was higher after RAS roll-out in Nigeria (16.1 vs. 4.2%) and stable in DRC (6.7 vs. 6.6%) and Uganda (0.7 vs. 0.3%). In DRC and Nigeria, children receiving RAS were more likely to die than those not receiving RAS (aOR=3.06, 95% CI 1.35–6.92 and aOR=2.16, 95% CI 1.11–4.21, respectively). Only in Uganda, RAS users were less likely to be dead or sick at follow-up (aOR=0.60, 95% CI 0.45–0.79). Post-referral parenteral antimalarials plus oral artemisinin-based combination therapy (ACT), a proxy for appropriate post-referral treatment, was protective. However, in referral health facilities, ACT was not consistently administered after parenteral treatment (DRC 68.4%, Nigeria 0%, Uganda 70.9%). Conclusions Implemented at scale to the recommended target group, pre-referral RAS had no beneficial effect on child survival in three highly malaria-endemic settings. RAS is unlikely to reduce malaria deaths unless health system issues such as referral and quality of care at all levels are addressed. Trial registration The study is registered on ClinicalTrials.gov : NCT03568344.
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spelling doaj.art-2ba73178c9f64d9aba74b45ee71425112023-04-03T05:30:07ZengBMCBMC Medicine1741-70152022-10-0120111210.1186/s12916-022-02541-8Effectiveness of rectal artesunate as pre-referral treatment for severe malaria in children under 5 years of age: a multi-country observational studyManuel W. Hetzel0Jean Okitawutshu1Antoinette Tshefu2Elizabeth Omoluabi3Phyllis Awor4Aita Signorell5Nina C. Brunner6Jean-Claude Kalenga7Babatunde K. Akano8Kazeem Ayodeji9Charles Okon10Ocheche Yusuf11Proscovia Athieno12Joseph Kimera13Gloria Tumukunde14Irene Angiro15Giulia Delvento16Tristan T. Lee17Mark J. Lambiris18Marek Kwiatkowski19Nadja Cereghetti20Theodoor Visser21Harriet G. Napier22Justin M. Cohen23Valentina Buj24Christian Burri25Christian Lengeler26Swiss Tropical and Public Health InstituteSwiss Tropical and Public Health InstituteKinshasa School of Public HealthAkena AssociatesMakerere University School of Public HealthSwiss Tropical and Public Health InstituteSwiss Tropical and Public Health InstituteKinshasa School of Public HealthAkena AssociatesAkena AssociatesAkena AssociatesAkena AssociatesMakerere University School of Public HealthMakerere University School of Public HealthMakerere University School of Public HealthMakerere University School of Public HealthSwiss Tropical and Public Health InstituteSwiss Tropical and Public Health InstituteSwiss Tropical and Public Health InstituteSwiss Tropical and Public Health InstituteSwiss Tropical and Public Health InstituteClinton Health Access InitiativeClinton Health Access InitiativeClinton Health Access InitiativeSwiss Tropical and Public Health InstituteSwiss Tropical and Public Health InstituteSwiss Tropical and Public Health InstituteAbstract Background To prevent child deaths from severe malaria, early parenteral treatment is essential. Yet, in remote rural areas, accessing facilities offering parenteral antimalarials may be difficult. A randomised controlled trial found pre-referral treatment with rectal artesunate (RAS) to reduce deaths and disability in children who arrived at a referral facility with delay. This study examined the effectiveness of pre-referral RAS treatment implemented through routine procedures of established community-based health care systems. Methods An observational study accompanied the roll-out of RAS in the Democratic Republic of the Congo (DRC), Nigeria and Uganda. Children <5 years of age presenting to a community-based health provider with a positive malaria test and signs of severe malaria were enrolled and followed up during admission and after 28 days to assess their health status and treatment history. The primary outcome was death; covariates of interest included RAS use, referral completion, and post-referral treatment. Results Post-roll-out, RAS was administered to 88% of patients in DRC, 52% in Nigeria, and 70% in Uganda. The overall case fatality rate (CFR) was 6.7% (135/2011) in DRC, 11.7% (69/589) in Nigeria, and 0.5% (19/3686) in Uganda; 13.8% (865/6286) of patients were sick on day 28. The CFR was higher after RAS roll-out in Nigeria (16.1 vs. 4.2%) and stable in DRC (6.7 vs. 6.6%) and Uganda (0.7 vs. 0.3%). In DRC and Nigeria, children receiving RAS were more likely to die than those not receiving RAS (aOR=3.06, 95% CI 1.35–6.92 and aOR=2.16, 95% CI 1.11–4.21, respectively). Only in Uganda, RAS users were less likely to be dead or sick at follow-up (aOR=0.60, 95% CI 0.45–0.79). Post-referral parenteral antimalarials plus oral artemisinin-based combination therapy (ACT), a proxy for appropriate post-referral treatment, was protective. However, in referral health facilities, ACT was not consistently administered after parenteral treatment (DRC 68.4%, Nigeria 0%, Uganda 70.9%). Conclusions Implemented at scale to the recommended target group, pre-referral RAS had no beneficial effect on child survival in three highly malaria-endemic settings. RAS is unlikely to reduce malaria deaths unless health system issues such as referral and quality of care at all levels are addressed. Trial registration The study is registered on ClinicalTrials.gov : NCT03568344.https://doi.org/10.1186/s12916-022-02541-8Severe malariaMalaria treatmentRectal artesunateReferralChild mortalityMalaria mortality
spellingShingle Manuel W. Hetzel
Jean Okitawutshu
Antoinette Tshefu
Elizabeth Omoluabi
Phyllis Awor
Aita Signorell
Nina C. Brunner
Jean-Claude Kalenga
Babatunde K. Akano
Kazeem Ayodeji
Charles Okon
Ocheche Yusuf
Proscovia Athieno
Joseph Kimera
Gloria Tumukunde
Irene Angiro
Giulia Delvento
Tristan T. Lee
Mark J. Lambiris
Marek Kwiatkowski
Nadja Cereghetti
Theodoor Visser
Harriet G. Napier
Justin M. Cohen
Valentina Buj
Christian Burri
Christian Lengeler
Effectiveness of rectal artesunate as pre-referral treatment for severe malaria in children under 5 years of age: a multi-country observational study
BMC Medicine
Severe malaria
Malaria treatment
Rectal artesunate
Referral
Child mortality
Malaria mortality
title Effectiveness of rectal artesunate as pre-referral treatment for severe malaria in children under 5 years of age: a multi-country observational study
title_full Effectiveness of rectal artesunate as pre-referral treatment for severe malaria in children under 5 years of age: a multi-country observational study
title_fullStr Effectiveness of rectal artesunate as pre-referral treatment for severe malaria in children under 5 years of age: a multi-country observational study
title_full_unstemmed Effectiveness of rectal artesunate as pre-referral treatment for severe malaria in children under 5 years of age: a multi-country observational study
title_short Effectiveness of rectal artesunate as pre-referral treatment for severe malaria in children under 5 years of age: a multi-country observational study
title_sort effectiveness of rectal artesunate as pre referral treatment for severe malaria in children under 5 years of age a multi country observational study
topic Severe malaria
Malaria treatment
Rectal artesunate
Referral
Child mortality
Malaria mortality
url https://doi.org/10.1186/s12916-022-02541-8
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