Efficacy and Safety of HB-1 for Panic Disorder

NCT ID: NCT06483789

Last Updated: 2025-12-10

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

240 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-10-29

Study Completion Date

2027-02-28

Brief Summary

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The purpose of this study is to determine the safety and efficacy of HB-1, versus placebo and two monotherapies, in male and female adult patients aged 18 to 65 years, inclusive, with Panic Disorder.

Detailed Description

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This is a multicenter, randomized, double-blind, placebo-controlled trial. All patients with Panic Disorder, with or without specified co-morbidities, who meet all of the inclusion and none of the exclusion criteria will be eligible. Patients and researchers will be blinded to their treatment group.

The study will enroll approximately 240 (up to 600) adult patients who meet the diagnosis of panic disorder.

Patients will be treated for 12 weeks followed by a safety follow up visit one week after their last dose of study treatment.

Conditions

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Panic Disorder Mental Illness

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

A sample size of 240 patients (up to a maximum of 600) is planned for the study to be randomized in a 3:1:1:1 ratio of active to monotherapy to monotherapy to placebo control.
Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators
An unblinded pharmacist will be utilized to assign bottles to each patient using an interactive voice response system (IVRS) central randomization system. Study treatment or placebo will be dispensed to patients in blinded bottles.

Study Groups

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HB-1

HB-1 fixed dose, once daily.

Group Type EXPERIMENTAL

HB-1

Intervention Type DRUG

HB-1 will be supplied as a dual active pharmaceutical ingredient tablet.

Telmisartan

Telmisartan fixed dose, once daily.

Group Type EXPERIMENTAL

Telmisartan Only Product in Oral Dose Form

Intervention Type DRUG

Telmisartan will be supplied as a single active pharmaceutical ingredient tablet.

Verapamil

Verapamil fixed dose, once daily.

Group Type EXPERIMENTAL

Verapamil Only Product in Oral Dose Form

Intervention Type DRUG

Verapamil will be supplied as a single active pharmaceutical ingredient tablet.

Placebo

Placebo treatment, once daily

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Matched Placebo will be supplied as a tablet.

Interventions

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HB-1

HB-1 will be supplied as a dual active pharmaceutical ingredient tablet.

Intervention Type DRUG

Telmisartan Only Product in Oral Dose Form

Telmisartan will be supplied as a single active pharmaceutical ingredient tablet.

Intervention Type DRUG

Verapamil Only Product in Oral Dose Form

Verapamil will be supplied as a single active pharmaceutical ingredient tablet.

Intervention Type DRUG

Placebo

Matched Placebo will be supplied as a tablet.

Intervention Type DRUG

Other Intervention Names

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Fixed dose Telmisartan / Verapamil tablet Telmisartan Verapamil Matched Placebo

Eligibility Criteria

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Inclusion Criteria

1. Male or female aged 18 to 65 years old, inclusive, at the time of informed consent.
2. Meets Diagnostic and Statistical Manual of Mental Disorders 5th Edition (DSM-V) Criteria for Panic Disorder.
3. Minimum of one full, unexpected panic attack in week prior to screening (via Diagnostic and Statistical Manual of Mental Disorders 5th edition \[DSM-V\] based structured interview).
4. Medically stable on current medication regimen for at least 3 months (including as needed \[PRN\] medications), as determined by Investigator.
5. Willing to remain on current doses of other psychiatric medications throughout the length of the trial.
6. Willing and able to safely stop / avoid any of the following prior to study trial: Inhibitors or inducers of CYP3A4 (grapefruit juice, erythromycin, ritonavir, telithromycin, rifampin), HMG-CoA Reductase Inhibitors (Simvastatin, Lovastatin, Atorvastatin), Beta Blockers (Timolol eyedrops, Metoprolol), Neuromuscular Blocking Agents (curare-like and depolarizing), Antihypertensive Agents (Prazosin and vasodilators, angiotensin-converting enzyme inhibitors, diuretics, beta blockers), Inhalation Anesthetics, Disopyramide, Flecainide, Quinidine, Cimetidine, Lithium, Carbamazepine, Phenobarbital, Cyclosporine, Digitalis, Aliskiren, Ramipril and Ramiprilat, aspirin, propranolol.
7. Willing and able to safely stop / avoid sensitive P-glycoprotein inhibitors.
8. Willing to take HB-1, telmisartan, verapamil, or placebo.
9. Willing and able to provide informed consent indicating an understanding of the requirements of the study and a willingness to comply with scheduled visits and all study procedures.
10. Female subjects must be surgically sterile (or have a monogamous partner who is surgically sterile) or be at least 2 years postmenopausal or commit to use 2 acceptable forms of birth control (defined as the use of an intrauterine device, a barrier method with spermicide, condoms, any form of hormonal contraceptives, or abstinence) for the duration of the study and for 4 months following the last dose of study treatment. Male subjects must be sterile (biologically or surgically) or commit to the use of a reliable method of birth control (condoms ± spermicide) for the duration of the study and for 4 months following the last dose of study treatment. Individuals who are involved exclusively in same-sex relationships are exempt from the birth control requirements but must agree to abide by the recommendations if they do engage in a heterosexual relationship.
11. Female subjects who are women of childbearing potential (WOCBP) must have a negative pregnancy test at Screening, within 7 days of dosing with study treatment.

Exclusion Criteria

1. Any concomitant disease, condition, or treatment that could interfere with the conduct of the study, or that would, in the opinion of the Investigator or Sponsor, pose an unacceptable risk to the participant in the study or interfere with the interpretation of study data.
2. Concurrent treatment with benzodiazepines (e.g. alprazolam, diazepam, clonazepam, lorazepam) as assessed by clinical interview and urine toxicology testing.
3. Severe Agoraphobia (Panic Disorder Symptom Severity Scale (PDSS) Item 4 "agoraphobic fear/avoidance" \> 2).
4. Severe Generalized Anxiety (Hamilton Anxiety Rating Scale \[HAM-A\] Total Score \> 23).
5. Prior lifetime history of suicide attempt, Columbia Suicide Severity Rating Scale (C-SSRS) ≥ 4 in the past 6 months or prior lifetime history of hospitalization for depression.
6. Diagnosis of Substance Use Disorder, Obsessive-Compulsive Disorder (OCD), Bipolar I, Bipolar II disorder or schizoaffective or other psychotic disorders (per Structure Clinical Interview for Diagnostic and Statistical Manual of Mental Disorders 5th Edition (DSM-V) \[SCID-V\].
7. Severe uncontrolled cardiac disease within 6 months of Screening, including but not limited to uncontrolled hypertension, hypotension (defined as below 90/60); unstable angina; myocardial infarction (MI) or cerebrovascular accident (CVA).
8. Any clinically significant electrocardiogram (ECG) abnormalities at screening.
9. Inadequate hepatic function defined as total bilirubin \> 1.5 × the upper limit of normal (ULN) ranges of each institution, aspartate aminotransferase (AST) and alanine aminotransferase (ALT) \> 3 × the ULN range of each institution.
10. Inadequate renal function defined as serum creatinine \> 1.5 × the upper limit of normal (ULN) range of each institution and/or estimated glomerular filtration rate (eGFR) \< 60.
11. Any clinically significant abnormalities in clinical laboratory assessments as assessed by the Investigator.
12. Any other systemic conditions or organ abnormalities that in the opinion of the Investigator may interfere with the conduct and/or interpretation of the current study.
13. Unable to complete neuropsychological testing.
14. Already on treatment with either telmisartan or verapamil or both.
15. Has a history of hypersensitivity or severe allergic reaction to either telmisartan or verapamil, or any component of either licensed drug.
16. Documented contraindication to taking telmisartan or verapamil: (e.g., Duchenne's muscular dystrophy, myasthenia gravis).
17. Pregnant or breastfeeding.
18. Participation in another current clinical trial or prior trial within the last three months.
19. Urinalysis evidence of exposure to substances that may interfere with HB-1 testing (per investigator discretion).
Minimum Eligible Age

18 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Honeybrains Biotech LLC

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Prof. Malcolm Hopwood

Role: PRINCIPAL_INVESTIGATOR

Ramsay Clinic Albert Road

Locations

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Paratus Clinical Research Canberra

Canberra, Australian Capital Territory, Australia

Site Status RECRUITING

Paratus Clinical Research Western Sydney

Blacktown, New South Wales, Australia

Site Status RECRUITING

East Sydney Doctors

Darlinghurst, New South Wales, Australia

Site Status RECRUITING

Momentum Clinical Research Darlinghurst

Darlinghurst, New South Wales, Australia

Site Status RECRUITING

Paratus Clinical Research Central Coast

Kanwal, New South Wales, Australia

Site Status RECRUITING

Novatrials

Kotara, New South Wales, Australia

Site Status RECRUITING

Canopy Clinical Sutherland

Miranda, New South Wales, Australia

Site Status RECRUITING

Innovate Clinical Research

Waitara, New South Wales, Australia

Site Status RECRUITING

Westmead Hospital

Westmead, New South Wales, Australia

Site Status RECRUITING

Canopy Clinical Wollongong

Wollongong, New South Wales, Australia

Site Status RECRUITING

Paratus Clinical Research Brisbane

Herston, Queensland, Australia

Site Status RECRUITING

Mackay Hospital and Health Service

Mackay, Queensland, Australia

Site Status RECRUITING

Gold Coast University Hospital

Southport, Queensland, Australia

Site Status RECRUITING

South Australian Health and Medical Research Institute

Adelaide, South Australia, Australia

Site Status RECRUITING

Lyell McEwin Hospital

Elizabeth Vale, South Australia, Australia

Site Status WITHDRAWN

Grampians Health

Ballarat, Victoria, Australia

Site Status WITHDRAWN

NeuroCentrix

Carlton, Victoria, Australia

Site Status RECRUITING

Peninsula Therapeutic and Research Group

Frankston, Victoria, Australia

Site Status COMPLETED

Multidisciplinary Alfred Psychiatry Research Clinic

Melbourne, Victoria, Australia

Site Status RECRUITING

Ramsay Clinic Albert Road

Melbourne, Victoria, Australia

Site Status RECRUITING

Paratus Clinical Research Melbourne

Northcote, Victoria, Australia

Site Status RECRUITING

Clinitrials

Perth, Western Australia, Australia

Site Status RECRUITING

Countries

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Australia

Central Contacts

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Karen Smith

Role: CONTACT

+1-650-722-9813

Alon Seifan

Role: CONTACT

+1-786-620-3204

Facility Contacts

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Jessica Daley

Role: primary

+61 1300 742 326

Sobia Dean

Role: primary

+61 1300 742 326

Eimear Byrne

Role: primary

+61 2 9332 2531

Chloe Williamson

Role: backup

+61 2 9332 2531

Olivia Pearson

Role: primary

+61 2 8038 1044

Joanne Lee

Role: backup

+61 2 8038 1044

Monica Harris

Role: primary

+61 1300 742 326

Michael Holt

Role: primary

+61 2 4089 3744

Kylie Melki

Role: primary

+61 2 7501 5057

Lara Swinsburg

Role: primary

+61 2 9159 3838

Regina Cruz

Role: backup

+61 2 9159 3838

Haleh Shahidipour

Role: primary

+61 2 8890 6688

Kate Park

Role: backup

Dylan Casey

Role: primary

+61 2 8357 5262

Sheryl Thew

Role: backup

Steve Turner

Role: primary

+61 1300 742 326

Joshua Paterson

Role: primary

+61 7 4885 6000

Catherine Donald

Role: primary

+61 7 5687 5499

Lisa Carne

Role: primary

+61 8 8128 4415

Mehrnaz Rostami

Role: primary

+61 3 9546 0009

Marta Malicka

Role: primary

+61 3 9076 6924

Melanie Hurley

Role: primary

+61 3 9279 3569

Jesse Alderson

Role: primary

+61 1300 742 326

A/Prof Bernadette Fitzgibbon

Role: backup

Dr Zachary Nathan

Role: primary

+61 0478623110

Other Identifiers

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HB-PD-002

Identifier Type: -

Identifier Source: org_study_id

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