Evidence map›Paper›PMID 38727896›Full record

ArticleCardiovascular drugs and therapy2025

Rationale and Design of Prospective, Multicenter, Double-Arm Clinical Trial to Investigate the Efficacy of Tofogliflozin on Left Ventricular Diastolic Dysfunction in Patients with Heart Failure with Preserved Ejection Fraction and Type 2 Diabetes Mellitus (TOP-HFPEF Trial).

Shin Ito, Yuri Nakajima, Hiroki Fukuda, Chisato Izumi, Gaku Nakazawa, Hajime Yamashita, Hideo Matsuhisa, Moriaki Inoko, Shigeru Toyoda, Shin Takiuchi and 8 more

Abstract readClinical Trial Protocol
PubMed Publisher
In one paragraph

Article in Cardiovascular drugs and therapy, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
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

3 citing papers in PubMed.

  1. Article
  2. Article
  3. 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

18 authors.

Shin Ito *Department of Clinical Research and Development, National Cerebral and Cardiovascular Center, Suita, Japan.
Yuri Nakajima *Department of Clinical Research and Development, National Cerebral and Cardiovascular Center, Suita, Japan.
Hiroki FukudaCardiovascular Center, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan.
Chisato IzumiDepartment of Heart Failure and Transplant, National Cerebral and Cardiovascular Center, Suita, Japan.
Gaku NakazawaDepartment of Cardiology, Faculty of Medicine, Kindai University, Osaka-Sayama, Japan.
Hajime YamashitaDepartment of Cardiology, Baba Memorial Hospital, Sakai, Japan.
Hideo MatsuhisaDepartment of Cardiovascular Medicine, Sakai City Medical Center, Sakai, Japan.
Moriaki InokoCardiovascular Center, Medical Research Institute KITANO HOSPITAL, PIIF Tazuke-Kofukai, Osaka, Japan.
Shigeru ToyodaDepartment of Cardiovascular Medicine, Dokkyo Medical University, Mibu, Japan.
Shin TakiuchiDepartment of Cardiology, Higashi Takarazuka Satoh Hospital, Takarazuka, Japan.
Toru KataokaDivision of Cardiology, Bell Land General Hospital, Sakai, Japan.
Yasuhiro IzumiyaDepartment of Cardiovascular Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan.
Yukio AbeDepartment of Cardiology, Osaka City General Hospital, Osaka, Japan.
Takashi SozuDepartment of Information and Computer Technology, Faculty of Engineering, Tokyo University of Science, Tokyo, Japan.
Yasushi SakataDepartment of Cardiovascular Medicine, Osaka University Graduate School of Medicine, Osaka, Japan.
Masanori EmotoDepartment of Metabolism, Endocrinology and Molecular Medicine, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan.
Teruo InoueJapan Red Cross Society, Nasu Red Cross Hospital, Otawara, Japan.
Masafumi KitakazeHanwa Memorial Hospital, 3-5-8 Minamisumiyoshi, Sumiyoshi-Ku, Osaka, 558-0041, Japan. kitakaze@zf6.so-net.ne.jp.ORCID 0000-0001-5157-4213

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent large clinical trials have revealed that sodium-glucose cotransporter 2 (SGLT2) inhibitors improve cardiovascular outcomes not only in patients with heart failure with reduced ejection fraction, but also in patients with heart failure with mildly reduced or preserved ejection fraction (HFpEF). However, the effect of SGLT2 inhibitors on left ventricular (LV) diastolic function is still controversial. METHODS AND

resultsThe TOP-HFPEF trial (Efficacy of Tofogliflozin on Left Ventricular Diastolic Dysfunction in Patients with Heart Failure with Preserved Ejection Fraction and Type 2 Diabetes Mellitus) is a multicenter, double-arm, open-label, confirmatory, investigator-initiated clinical study to investigate the effect of SGLT2 inhibitor on LV diastolic function in patients with HFpEF and type 2 diabetes mellitus. The participants are randomly assigned (1:1) to the tofogliflozin group (20 mg once daily) or the control group (administration or continuation of antidiabetic drugs other than SGLT2 inhibitors). The estimated number of patients to be enrolled in this trial is 90 in total (45 in each group). The participants are followed up for 52 weeks with tofogliflozin or control drugs. The primary endpoint is the change in E/e' assessed by echocardiography from the baseline to the end of this study (52 weeks). This trial will also evaluate the effects of tofogliflozin on cardiovascular events, biomarkers, other echocardiographic parameters, the occurrence of atrial fibrillation, and renal function.

conclusionsThe TOP-HFPEF trial will clarify the efficacy of an SGLT2 inhibitor, tofogliflozin, on LV diastolic function in patients with HFpEF and type 2 diabetes mellitus.

Indexed as

Benzhydryl CompoundsDiabetes Mellitus, Type 2GlucosidesHeart FailureSodium-Glucose Transporter 2 InhibitorsStroke VolumeVentricular Dysfunction, LeftVentricular Function, LeftAgedFemaleHumansMaleMiddle AgedMulticenter Studies as TopicProspective StudiesRandomized Controlled Trials as Topic6-((4-ethylphenyl)methyl)-3',4',5',6'-tetrahydro-6'-(hydroxymethyl)spiro(isobenzofuran-1(3H),2'-(2H)pyran)-3',4',5'-triolBenzhydryl CompoundsGlucosidesSodium-Glucose Transporter 2 InhibitorsDiastolic functionHeart failure with preserved ejection fraction (HFpEF)Sodium–glucose cotransporter 2 (SGLT2) inhibitorsTofogliflozin

Identifiers

What Socratic holds

Textmetadata
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 Socratic graph.