NCT05946772

Brief Summary

The goal of this clinical trial is to investigate the impact of repetitive acute Cyclosporine A (CsA) bolus therapy in patients suffering from TTS with an elevated risk of impaired outcome. The main question it aims to answer is whether CsA reduces myocardial injury (primary outcome). Participants will receive CsA or placebo at baseline and every 12h in the first 24h after study inclusion. Researchers will compare CsA and the placebo group to see if a) myocardial injury is reduced, and b) ejection fraction is improved compared to baseline, as well as several other secondary endpoints over a one year follow-up.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
204

participants targeted

Target at P75+ for phase_2

Timeline
22mo left

Started Feb 2025

Typical duration for phase_2

Geographic Reach
1 country

24 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress42%
Feb 2025Feb 2028

First Submitted

Initial submission to the registry

June 19, 2023

Completed
25 days until next milestone

First Posted

Study publicly available on registry

July 14, 2023

Completed
1.6 years until next milestone

Study Start

First participant enrolled

February 1, 2025

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

February 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2028

Last Updated

May 1, 2026

Status Verified

April 1, 2026

Enrollment Period

2 years

First QC Date

June 19, 2023

Last Update Submit

April 27, 2026

Conditions

Keywords

Takotsubo syndromeTroponinCyclosporineInflammationAcute heart failure

Outcome Measures

Primary Outcomes (1)

  • Myocardial damage

    High-sensitive Troponin T AUC over several time points between CsA and Placebo.

    baseline, hour 3, hour 12, hour 24, hour 36, hour 48, hour 60, hour 72, day 30

Secondary Outcomes (21)

  • Change in Ejection fraction from baseline

    baseline, hour 24, hour 48, hour 72, day 30

  • Fold-change in Troponin plasma concentration

    baseline, hour 3, hour 12, hour 24, hour 36, hour 48, hour 60, hour 72, day 30

  • Fold-change in creatine kinase plasma concentration

    baseline, hour 3, hour 12, hour 24, hour 36, hour 48, hour 60, hour 72, day 30

  • Fold-change in NTproBNP plasma concentration

    baseline, hour 3, hour 12, hour 24, hour 36, hour 48, hour 60, hour 72, day 30

  • Fold-change in interleukin-6 plasma concentration

    baseline, hour 12, hour 24, hour 36, hour 48, hour 60, hour 72, day 30

  • +16 more secondary outcomes

Study Arms (2)

Placebo

PLACEBO COMPARATOR

A concealed 0.9% sodium chloride (NaCl) preparation will be applied intravenously at baseline, 12h, and 24h.

Drug: Placebo

CsA

EXPERIMENTAL

Cyclosporine A will be applied intravenously at baseline, 12h, and 24h.

Drug: Cyclosporine A

Interventions

2.5mg/kg body weight Cyclosporine A as an intravenous bolus

CsA

The same amount of 0.9% sodium chloride (NaCl0.9%) will be applied in an indistinguishable package as an intravenous bolus

Placebo

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients aged over 18
  • Enrollment and first IMP administration within 24 hours after cardiac catheterization
  • Regional Wall Motion Abnormality (WMA) consistent with TTS in angiography or echocardiography
  • InterTAK prognostic score- or a GEIST Score ≥ 9 -
  • Written informed consent

You may not qualify if:

  • Acute coronary syndrome (ACS) with significant coronary stenosis potentially associated with wall motion abnormalities (WMA) or percutaneous coronary intervention (PCI)
  • History of hypersensitivity to cyclosporine
  • History of hypersensitivity to egg, peanut or soybean proteins
  • History of chronic renal insufficiency (either creatinin clearance \<30 ml/min/1.73m² or current medical care for severe renal insufficiency)
  • History of liver insufficiency
  • Current medication with any compound containing Hypericum perforatum (St. John's worth) or Stiripentol or Aliskiren or Bosentan or Rosuvastatine (Rosuvastatine \>5mg within 24h intake\<48h before IMP administration)
  • Female patients currently pregnant or women of childbearing age without negative pregnancy test or without effective contraception
  • Any disorder associated with immunological dysfunction ≤6 months prior to presentation (autoimmune disease, known positive serology for HIV or hepatitis)
  • Immunosuppressive, chemotherapeutical, or antibody treatment
  • Participation in other clinical trials except for non interventional trials

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (24)

Kerckhoff Heart Center, Bad Nauheim / Gießen University

Bad Nauheim, Germany

RECRUITING

Department of Cardiology, Charité - Universitätsmedizin Berlin, Campus Benjamin Franklin

Berlin, Germany

RECRUITING

Department of Cardiology, Charité - Universitätsmedizin Berlin, Campus Virchow Klinikum

Berlin, Germany

RECRUITING

Heart Centre - University Hospital Bonn

Bonn, Germany

RECRUITING

Department of Cardiology, University Hospital Köln

Cologne, Germany

RECRUITING

Department of Cardiology, University Hospital Dresden

Dresden, Germany

RECRUITING

Cardiovascular Centre - University Hospital Düsseldorf

Düsseldorf, Germany

RECRUITING

Department of Cardiology - University Hospital Essen

Essen, Germany

RECRUITING

Department of Cardiology, University Hospital Frankfurt

Frankfurt, Germany

RECRUITING

University Medical Center Göttingen

Göttingen, Germany

RECRUITING

Department of Cardiology, University Hospital Halle

Halle, Germany

RECRUITING

University Medical Center Hamburg-Eppendorf

Hamburg, Germany

RECRUITING

Department of Cardiology, Heidelberg University Hospital

Heidelberg, 69120, Germany

RECRUITING

Department of Cardiology, University Hospital Leipzig

Leipzig, Germany

RECRUITING

Leipzig Heart Center

Leipzig, Germany

RECRUITING

University Medical Center Schleswig-Holstein/Campus Lübeck

Lübeck, Germany

RECRUITING

Department of Cardiology, University Hospital Magdeburg

Magdeburg, Germany

RECRUITING

Department of Cardiology, University Hospital Mainz

Mainz, Germany

RECRUITING

Department of Cardiology, University Hospital Mannheim

Mannheim, Germany

RECRUITING

Department of Cardiology, Hospital of the Ludwig-Maximilians-University Munich

München, Germany

RECRUITING

University Hospital rechts der Isar, Technical University of Munich

München, Germany

RECRUITING

Department of Cardiology, University Hospital Rostock

Rostock, Germany

RECRUITING

Department of Cardiology, University Hospital Ulm

Ulm, Germany

RECRUITING

Department of Cardiology, University Hospital Wuppertal

Wuppertal, Germany

RECRUITING

Related Publications (1)

  • Bruns B, Elsous N, Burghaus I, Steyrer K, Joos M, Kramer T, Scheffel M, Blankenberg S, Eitel I, Massberg S, Thiele H, Meder B, Backs J, Frey N. Rationale and design of the cyclosporine in Takotsubo syndrome (CIT) trial. Am Heart J. 2025 Nov;289:147-157. doi: 10.1016/j.ahj.2025.04.020. Epub 2025 Apr 21.

MeSH Terms

Conditions

Takotsubo CardiomyopathyInflammation

Interventions

Cyclosporine

Condition Hierarchy (Ancestors)

CardiomyopathiesHeart DiseasesCardiovascular DiseasesVentricular Dysfunction, LeftVentricular DysfunctionPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

CyclosporinsPeptides, CyclicMacrocyclic CompoundsPolycyclic CompoundsPeptidesAmino Acids, Peptides, and Proteins

Study Officials

  • Norbert Frey, MD

    University Hospital Heidelberg

    PRINCIPAL INVESTIGATOR
  • Bastian Bruns, MD

    University Hospital Heidelberg

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Masking Details
Participants, investigators, care providers, and outcomes assessors are masked from study arm affiliation.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Double-blind multicentre RCT
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor Dr. Norbert Frey, MD

Study Record Dates

First Submitted

June 19, 2023

First Posted

July 14, 2023

Study Start

February 1, 2025

Primary Completion (Estimated)

February 1, 2027

Study Completion (Estimated)

February 1, 2028

Last Updated

May 1, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations