Evidence map›Paper›PMID 33421973›Full record

Observational studyCancer research and treatment2021

Effectiveness and Safety of Clofarabine Monotherapy or Combination Treatment in Relapsed/Refractory Childhood Acute Lymphoblastic Leukemia: A Pragmatic, Non-interventional Study in Korea.

Jung Yoon Choi, Che Ry Hong, Kyung Taek Hong, Hyoung Jin Kang, Seongkoo Kim, Jae Wook Lee, Pil Sang Jang, Nack-Gyun Chung, Bin Cho, Hyery Kim and 14 more

Open access · diamondAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Cancer research and treatment, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.

  1. Pooled it
  2. 3'-RSC chemical biology · 2025
    Article
  3. Article
  4. Article
  5. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

24 authors at 14 institutions in 4 countries.

Jung Yoon ChoiDepartment of Pediatrics, Seoul National University Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
Che Ry HongDepartment of Pediatrics, Seoul National University Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
Kyung Taek HongDepartment of Pediatrics, Seoul National University Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
Hyoung Jin KangDepartment of Pediatrics, Seoul National University Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
Seongkoo KimDepartment of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Jae Wook LeeDepartment of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Pil Sang JangDepartment of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Nack-Gyun ChungDepartment of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Bin ChoDepartment of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea.
Hyery KimDivision of Pediatric Hematology/Oncology, Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
Kyung-Nam KohDivision of Pediatric Hematology/Oncology, Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
Ho Joon ImDivision of Pediatric Hematology/Oncology, Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
Jong Jin SeoDivision of Pediatric Hematology/Oncology, Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
Seung Min HahnDivision of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea.
Jung Woo HanDivision of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea.
Chuhl Joo LyuDivision of Pediatric Hematology and Oncology, Department of Pediatrics, Yonsei University Health System, Yonsei University College of Medicine, Seoul, Korea.
Eu Jeen YangDepartment of Pediatrics, Pusan National University Children's Hospital, Pusan National University School of Medicine, Yangsan, Korea.
Young Tak LimDepartment of Pediatrics, Pusan National University Children's Hospital, Pusan National University School of Medicine, Yangsan, Korea.
Keon Hee YooDepartment of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Hong Hoe KooDepartment of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
Hoon KookDepartment of Pediatrics, Chonnam National University Hwasun Hospital, Chonnam National University Medical School, Hwasun, Korea.
In Sang JeonDepartment of Pediatrics, Gachon University, Gil Medical Center, Incheon, Korea.
Hana ChoSanofi Aventis, Seoul, Korea.
Hee Young ShinDepartment of Pediatrics, Seoul National University Cancer Research Institute, Seoul National University College of Medicine, Seoul, Korea.
Catholic University of Korea · KRSeoul National University · KRUniversity Health System · USPusan National University Yangsan Hospital · KRUlsan College · KRAsan Medical Center · KRChonnam National University Hwasun Hospital · KRGachon University Gil Medical Center · KRNational University College · PRNew Generation University College · ETSamsung Medical Center · KRSanofi (South Korea) · KRSungkyunkwan University · KRUniversity of Ulsan · KR

Funding

Sanofi Aventis Korea Ltd.
6 · The paper itself

Abstract

purposeEffectiveness and safety of clofarabine (one of the treatment mainstays in pediatric patients with relapsed/refractory acute lymphoblastic leukemia [ALL]) was assessed in Korean pediatric patients with ALL to facilitate conditional coverage with evidence development. MATERIALS AND

methodsIn this multicenter, prospective, observational study, patients receiving clofarabine as mono/combination therapy were followed up every 4-6 weeks for 6 months or until hematopoietic stem cell transplantation (HSCT). Response rates, survival outcomes, and adverse events were assessed.

resultsSixty patients (2-26 years old; 65% B-cell ALL, received prior ≥ 2 regimen, 68.3% refractory to previous regimen) were enrolled and treated with at least one dose of clofarabine; of whom 26 (43.3%) completed 6 months of follow-up after the last dose of clofarabine. Fifty-eight patients (96.7%) received clofarabine combination therapy. Overall remission rate (complete remission [CR] or CR without platelet recovery [CRp]) was 45.0% (27/60; 95% confidence interval [CI], 32.4 to 57.6) and the overall response rate (CR, CRp, or partial remission [PR]) was 46.7% (28/60; 95% CI, 34.0 to 59.3), with 11 (18.3%), 16 (26.7%), and one (1.7%) patients achieving CR, CRp, and PR, respectively. The median time to remission was 5.1 weeks (95% CI, 4.7 to 6.1). Median duration of remission was 16.6 weeks (range, 2.0 to 167.6 weeks). Sixteen patients (26.7%) proceeded to HSCT. There were 24 deaths; 14 due to treatment-emergent adverse events.

conclusionRemission with clofarabine was observed in approximately half of the study patients who had overall expected safety profile; however, there was no favorable long-term survival outcome in this study.

Indexed as

Drug Resistance, NeoplasmSalvage TherapyAdolescentAdultAntimetabolites, AntineoplasticChildChild, PreschoolClofarabineCombined Modality TherapyFemaleFollow-Up StudiesHematopoietic Stem Cell TransplantationHumansMaleNeoplasm Recurrence, LocalPrecursor Cell Lymphoblastic Leukemia-LymphomaAntimetabolites, AntineoplasticClofarabineAcute lymphoblastic leukemiaClofarabineLeukemiaPediatric cancerPediatric malignancy

Identifiers

PMID33421973
PMCPMC8524030
OpenAlexW3118382886

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.