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STudy to vAlidate telemetRic ECG Systems for firsT Dose Administration of Fingolimod (START)

A 1-week, Open-label, Multi-center Study to Explore Conduction Abnormalities During First Dose Administration of Fingolimod in Patients With Relapsing-remitting Multiple Sclerosis

Status
Completed
Phases
Phase 4
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01585298
Acronym
START
Enrollment
6998
Registered
2012-04-25
Start date
2012-04-29
Completion date
2016-12-12
Last updated
2019-09-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Multiple Sclerosis

Keywords

Multiple Sclerosis, MS, Fingolimod, Gilenya, ECG, Bradyarrythmia, conduction abnormalities, first dose observation

Brief summary

This study evaluated bradycardiac events during first dose observation of fingolimod in MS patients.

Interventions

DRUGFTY720

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Subjects with relapsing remitting MS. * Patients with highly active disease despite a full and adequate course of treatment with at least one disease modifying therapy. * Patients who had been previously on 2nd line therapies. It was understood that these patients satisfied the above mentioned criteria listed under a. in the past. This also included patients, who were previously treated with fingolimod (regardless of whether or not they had already been treated within the START study) but discontinued treatment due to medical reasons. \- or patients with rapidly evolving severe RRMS (e.g. \> 2 relapses with disease progression in one year and \> 1 Gd-enhancing lesion or with a significant increase in T2 lesions compared to a recent MRI). Key

Exclusion criteria

* immunocompromised patients * active infections * pregnant or nursing women, women of childbearing potential unless using 2 reliable forms of contraception * presence of malignancy (other than localized basal cell carcinoma of the skin).

Design outcomes

Primary

MeasureTime frameDescription
Participants With 2nd or 3rd Degree Atrioventricular (AV) Blockbaseline, during 6 hour monitoring post first dose observationAV Blocks/Heart block is an abnormal heart rhythm where the heart beats too slowly; the electrical signals that tell the heart to contract are partially intermittent (Type 2:1) or slowed (1st and 2nd degree) or blocked (3rd degree) between the upper chambers (atria) and the lower chambers (ventricles). In 2nd degree AV Blocks, electrical impulses are intermittent (type 2:1) or delayed w/ each subsequent heartbeat (Mobitz type I) until a beat fails to reach the ventricles entirely. This type of block often is physiologic and observed in a highly relaxed state & during sleep. In 2nd degree AV Blocks type II, the atria electrical impulses are unable to reach the ventricles, a more serious condition. In 3rd degree AV Blocks (complete heart block), none of the electrical impulses reach either the atria or the ventricles. Patients can experience simultaneously both types of 2nd or 3rd degree AV Blocks without any symptoms.
Number of Patients With Heart Rate Below 45 Beats Per Minute (BPM)baseline during 6 hour monitoring post doseNumber of patients with heart rate below 45 beats bpm in ECG during first dose observation

Secondary

MeasureTime frameDescription
Number of Participants With Prolonged QTc Interval (Friderica)baseline post-doseNumber of patients with conduction abnormalities such as QT prolongation, first degree AV block during treatment initiation. The QT interval is a period between the activation and the regeneration of ventricular contraction. A prolonged QT interval can be a potential marker of cardiac arrhythmias. Two patients of the safety analysis set discontinued the study without having received treatment, but safety information was collected on these two patients.
Number of Participants With Bradyarrhythmic Electrocardiogram (ECG) Eventsup to day 7The number of participants with bradyarrhythmic electrocardiogram (ECG) events was assessed. Bradyarrhythmic ECG events are defined as QTc Fridericia time \> 450 ms for males and \> 470 ms for females.
Number of Patients With Cardiac Adverse Events7 daysThe number of participants with the occurrence of subsequent cardiac adverse events (AEs) and serious cardiac AEs during study was assessed. Cardiac events were defined as the following Medical Dictionary for Regulatory Activities (MedDRA) preferred terms: angina pectoris, chest discomfort, dizziness, dyspnoea, dyspnoea exertional, fatigue, palpitations, syncope, vertigo, vertigo positional and vision blurred.

Countries

Germany

Participant flow

Pre-assignment details

6998 participants were enrolled into the study and were considered as part of the safety set, but 2 participants discontinued from the study and did not take any study drug.

Participants by arm

ArmCount
Fingolimod
Fingolimod 0.5 mg by mouth once daily for 7 days.
6,998
Total6,998

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAbnormal test procedure results1
Overall StudyAdministrative problems4
Overall StudyAdverse Event24
Overall StudyLost to Follow-up2
Overall StudyProtocol deviation1
Overall StudyStudy completion was not documented.1
Overall StudyWithdrawal by Subject4

Baseline characteristics

CharacteristicFingolimod
Age, Continuous39.2 Years
STANDARD_DEVIATION 10.52
Sex: Female, Male
Female
4924 Participants
Sex: Female, Male
Male
2074 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
2,179 / 6,998
serious
Total, serious adverse events
160 / 6,998

Outcome results

Primary

Number of Patients With Heart Rate Below 45 Beats Per Minute (BPM)

Number of patients with heart rate below 45 beats bpm in ECG during first dose observation

Time frame: baseline during 6 hour monitoring post dose

Population: Safety set: The safety set consisted of all enrolled participants for whom safety information was collected. Two patients of the safety analysis set discontinued the study without having received treatment, but safety information was collected on these two patients.

ArmMeasureValue (NUMBER)
FingolimodNumber of Patients With Heart Rate Below 45 Beats Per Minute (BPM)63 Participants
Primary

Participants With 2nd or 3rd Degree Atrioventricular (AV) Block

AV Blocks/Heart block is an abnormal heart rhythm where the heart beats too slowly; the electrical signals that tell the heart to contract are partially intermittent (Type 2:1) or slowed (1st and 2nd degree) or blocked (3rd degree) between the upper chambers (atria) and the lower chambers (ventricles). In 2nd degree AV Blocks, electrical impulses are intermittent (type 2:1) or delayed w/ each subsequent heartbeat (Mobitz type I) until a beat fails to reach the ventricles entirely. This type of block often is physiologic and observed in a highly relaxed state & during sleep. In 2nd degree AV Blocks type II, the atria electrical impulses are unable to reach the ventricles, a more serious condition. In 3rd degree AV Blocks (complete heart block), none of the electrical impulses reach either the atria or the ventricles. Patients can experience simultaneously both types of 2nd or 3rd degree AV Blocks without any symptoms.

Time frame: baseline, during 6 hour monitoring post first dose observation

Population: Safety set: The safety set consisted of all enrolled participants for whom safety information was collected. Two patients of the safety analysis set discontinued the study without having received treatment, but safety information was collected on these two patients.

ArmMeasureGroupValue (NUMBER)
FingolimodParticipants With 2nd or 3rd Degree Atrioventricular (AV) BlockAny AV block ll degree or higher120 Participants
FingolimodParticipants With 2nd or 3rd Degree Atrioventricular (AV) BlockAV block ll degree: Mobitz type I degree117 Participants
FingolimodParticipants With 2nd or 3rd Degree Atrioventricular (AV) BlockAV block II degree: Mobitz type II degree0 Participants
FingolimodParticipants With 2nd or 3rd Degree Atrioventricular (AV) BlockAV block II degree: 2:143 Participants
FingolimodParticipants With 2nd or 3rd Degree Atrioventricular (AV) BlockAV block III degree1 Participants
Secondary

Number of Participants With Bradyarrhythmic Electrocardiogram (ECG) Events

The number of participants with bradyarrhythmic electrocardiogram (ECG) events was assessed. Bradyarrhythmic ECG events are defined as QTc Fridericia time \> 450 ms for males and \> 470 ms for females.

Time frame: up to day 7

Population: Safety set: The safety set consisted of all enrolled participants for whom safety information was collected. Two patients of the safety analysis set discontinued the study without having received treatment, but safety information was collected on these two patients.

ArmMeasureValue (NUMBER)
FingolimodNumber of Participants With Bradyarrhythmic Electrocardiogram (ECG) Events26 Participants
Secondary

Number of Participants With Prolonged QTc Interval (Friderica)

Number of patients with conduction abnormalities such as QT prolongation, first degree AV block during treatment initiation. The QT interval is a period between the activation and the regeneration of ventricular contraction. A prolonged QT interval can be a potential marker of cardiac arrhythmias. Two patients of the safety analysis set discontinued the study without having received treatment, but safety information was collected on these two patients.

Time frame: baseline post-dose

Population: The safety set, which consisted of all enrolled participants for whom safety information was collected, was considered for the analysis. Only participants, who had baseline post-dose QTc interval data, were analyzed.~Of the 6998 patients, 6844 patients had complete baseline post-dose QTc interval data.

ArmMeasureGroupValue (NUMBER)
FingolimodNumber of Participants With Prolonged QTc Interval (Friderica)Female, QTcFridericia Interval > 470 ms7 Participants
FingolimodNumber of Participants With Prolonged QTc Interval (Friderica)Male, QTcF Interval > 450 ms6 Participants
Secondary

Number of Patients With Cardiac Adverse Events

The number of participants with the occurrence of subsequent cardiac adverse events (AEs) and serious cardiac AEs during study was assessed. Cardiac events were defined as the following Medical Dictionary for Regulatory Activities (MedDRA) preferred terms: angina pectoris, chest discomfort, dizziness, dyspnoea, dyspnoea exertional, fatigue, palpitations, syncope, vertigo, vertigo positional and vision blurred.

Time frame: 7 days

Population: Safety set: The safety set consisted of all enrolled participants for whom safety information was collected. Two patients of the safety analysis set discontinued the study without having received treatment, but safety information was collected on these two patients.

ArmMeasureGroupValue (NUMBER)
FingolimodNumber of Patients With Cardiac Adverse EventsCardiac events489 Participants
FingolimodNumber of Patients With Cardiac Adverse EventsSerious cardiac AEs9 Participants

Source: ClinicalTrials.gov · Data processed: Mar 11, 2026