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Theophylline Effects in the Fontan Circulation

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
EU CTIS
Registry ID
CTIS2022-500301-41-00
Enrollment
10
Registered
2022-09-21
Start date
2023-02-20
Completion date
2023-09-15
Last updated
2023-05-16

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

Conditions

Univentricular congenital heart disease with a Fontan-type surgical palliation

Brief summary

Primary safety endpoints: a. Frequency of treatment emerged AE/SAE b. Freedom from participant dropout based on tolerability of the study intervention c. Number of participants requiring dose reduction after first serum concentration assessment. d. Freedom of arrhythmogenic side effects of the study treatment leading to patient dropout, Difference in oxygen uptake at aerobic threshold pre/post treatment.

Detailed description

Difference in total scores from SF-36 and EQ-5D questionnaires pre/post treatment, Difference in ventricular function as assessed by echocardiography at rest pre/post treatment, Difference in diffusion capacity pre/post treatment, Change in Apnea Hypopnea Index during home-based sleep study pre-/post-treatment

Interventions

DRUGTheo-Dur 200mg depottablett

Sponsors

Oslo University Hospital Hf
Lead SponsorOTHER

Eligibility

Sex/Gender
All
Age
0 Years to 64 Years

Design outcomes

Primary

MeasureTime frame
Primary safety endpoints: a. Frequency of treatment emerged AE/SAE b. Freedom from participant dropout based on tolerability of the study intervention c. Number of participants requiring dose reduction after first serum concentration assessment. d. Freedom of arrhythmogenic side effects of the study treatment leading to patient dropout, Difference in oxygen uptake at aerobic threshold pre/post treatment.

Secondary

MeasureTime frame
Difference in total scores from SF-36 and EQ-5D questionnaires pre/post treatment, Difference in ventricular function as assessed by echocardiography at rest pre/post treatment, Difference in diffusion capacity pre/post treatment, Change in Apnea Hypopnea Index during home-based sleep study pre-/post-treatment

Countries

Norway

Outcome results

None listed

Source: EU CTIS · Data processed: Feb 4, 2026