← Eichor
Study identifier: NCT06505668 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Effect of Atenolol Versus Ivabradine on HRV in TRS Patients on Clozapine With Tachycardia: A Randomised Control Trial.

Condition: Treatment Resistant Schizophrenia · Clozapine Adverse Reaction · Heart Rate Variability  ·  Sponsor: All India Institute of Medical Sciences, Bhubaneswar

PhaseNA
Planned participants40
Who can joinAll sexes, 18 Years to 60 Years
Healthy volunteersYes

About this study

Clozapine is the only drug approved for Treatment Resistant Schizophrenia. However, it has been associated with many adverse drug reactions including agranulocytosis, myocarditis, sialorrhea, constipation, orthostasis, tachycardia. There are many factors that have impacted the use of clozapine in TRS patients including physician hesitation, patient denial, stopping of drug due to Adverse drug reactions. Although Tachycardia should not be the reason to stop clozapine, but data shows that it leads to discontinuation of drugs in significant patient population. If patient on clozapine develops tachycardia; first orthostasis, myocarditis and systemic infection should be ruled out. Tachycardia traditionally have been treated with B1 adrenergic blockers such as Atenolol. But the problem with beta blocker medications is that significant proportion develops hypotension. Recently developed Ivabradine slows heart rate via I(f) current, and is not associated with much cardiac adverse effects. Recent Clinical trials have been carried out to show its effects on Clozapine associated tachycardia which shows promising results. Some studies suggest using Ivabradine in patient population that have contraindication for beta blockers. Although both of these drugs are used widely in clinical practice, but as Ivabradine is relatively new drug there have been no head-to-head comparison with Atenolol. A recent meta-analysis tried to compare treatment efficacy in these patients, but found no studie…

This description comes directly from the study's public registry record.

Talk to the study team

Biswa R Mishra, MD, DPM  ·  9438884220  ·  brm1678@gmail.com

Amit Bahmnia, MBBS  ·  9996445295  ·  amitbahmnia@gmail.com

Always discuss trial participation with your own doctor first.

Locations (1)

All India Institute of Medical SciencesBhubaneswar, Odisha, IndiaRecruiting

Follow this study

Get one email when the public record changes — results posted, or the study's status changes. Nothing else, ever.

We email about this public record only. Unsubscribe anytime with one click. Never medical advice.

Is this your study? This page was generated automatically from the public registry record. Sponsors can claim it — free — to add branding and verified contact routing. Claim this page →

This page is independently generated by Eichor from the public ClinicalTrials.gov record and re-synced daily. It is not the sponsor's official website unless claimed. Nothing here is medical advice; eligibility is always determined by the study team — talk to your own doctor first.

Source record: clinicaltrials.gov/study/NCT06505668