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OsteoarthritisPhase 2NCT03978208

Efficacy and Safety of ATB-346 Versus Placebo in Osteoarthritis Patients

A Phase 2 study testing ATB-346 low dose, ATB-346 mid-dose and ATB-346 standard dose in people with Osteoarthritis, run by Antibe Therapeutics Inc. at 35 sites in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective of this study is to evaluate the efficacy of a 14-day dosing regimen of ATB-346 at doses of 150 mg, 200 mg and 250 mg compared to placebo in reducing osteoarthritis knee pain as measured by changes in the post-treatment WOMAC subscale pain score relative to each patient's pretreatment baseline… Read more about this study

Who is it for?
Ages 40 to 75 years
Conditions the study is for
Osteoarthritis
What is being tested?
ATB-346 low dose, ATB-346 mid-dose and ATB-346 standard dose
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
381 participants
Where
35 sitesCanada
Study dates
29 Mar 2019to 29 Dec 2019
Phase
Phase 2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 40 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Diagnosis greater than 2 years duration requiring the use of regular therapies, e.g. oral or topical anti-inflammatories, acetaminophen, topical capsaicin
  • Between the ages of 40 to 75
  • BMI ≤40
  • Patients must be unlikely to procreate or agree to the use of acceptable contraceptive regimens from first drug administration , during the study, and for at least 30 days after the last dose
  • Patients must not have used aspirin or naproxen-containing medications for 7 days prior to study entry
  • Patients must not have used any anti-inflammatory medications or acetaminophen for 5 days prior to study entry
  • Patients must show a ≥10-point increase in WOMAC Visual Analog Score between their screening visit and baseline study entry visit

Who cannot join

  • Females who are pregnant or breastfeeding
  • Seated and resting pulse rate less than 50 beats per minute (bpm) or more than 100 bpm at screening
  • Seated and resting blood pressure below 100/60 mmHg or higher than 140/90 mmHg at screening
  • History of significant hypersensitivity to naproxen, other non-steroidal anti-inflammatory agents, or any related products (including excipients of the formulations) as well as severe hypersensitivity reactions (like angioedema) to any drugs
  • Patients with a history of GI bleeding or ulceration
  • Patients refractory to NSAIDs
Show all 19Show fewer
  • Presence of significant gastrointestinal, liver, or kidney disease, or any other conditions known to interfere with the absorption, distribution, metabolism or excretion of drugs or know to potentiate or predispose patients to undesired effects
  • Presence of significant cardiovascular, pulmonary, hematologic, neurological, psychiatric, endocrine, immunologic, or dermatologic disease as determined by the investigator
  • Suicidal tendency, history of/or disposition to seizures, state of confusion
  • History of hepatic disease
  • Maintenance therapy with any drug, including gastroprotective agents such as proton pump inhibitors, H2 receptor antagonists, sucralfate, etc., or significant history of drug dependency or alcohol abuse (>3 units of alcohol per day, intake of excessive alcohol, acute or chronic)
  • Any clinically significant illness in the previous 30 days before Day 1 of this study
  • Use of any enzyme-modifying drugs, including strong inhibitors of CYP enzymes (such as cimetidine, fluoxetine, quinidine, erythromycin, ciprofloxacin, fluconazole, ketoconazole, diltiazem, and HIV antivirals) and strong inducers of CYP enzymes (such as barbiturates, carbamazepine, glucocorticoids, phenytoin, rifampin and St John's Wort) in the previous 30 days before Day 1 of this study
  • Any history of tuberculosis and/or prophylaxis for tuberculosis
  • Positive H. Pylori Urea Breathe Test
  • Positive urine screening of alcohol and/or drugs of abuse at the screening visit
  • Positive results to HIV Ag/Ab Combo, Hepatitis B surface Antigen (HBsAg) or anti-Hepatitis C Virus (HCV) tests
  • Females who are pregnant according to a positive serum pregnancy test
  • Patients who took an Investigational Product (in another clinical trial) in the previous 30 days before Day 1 of this study.

Trial locations and contacts

35 sites in 1 country.

35 sites in 1 country

Canada35 sites
  • Aggarwal and Associates Limited

    Brampton, Ontario, L6T 0G1

  • Manna Research (Burlington North)

    Burlington, Ontario, L7M 4Y1

  • Etobicoke Medical Centre

    Etobicoke, Ontario, M8Z 5W4

  • Dawson Clinical Research

    Guelph, Ontario, N1H 1B1

  • True North Clinical Research Inc.

    Halifax, Nova Scotia, B3S 1M7

  • Dr. Allen Greenspoon Medicine Professional Corporation

    Hamilton, Ontario, L8L 5G8

  • Hamilton Medical Research Group

    Hamilton, Ontario, L8M 1K7

  • Manna Research (Quebec)

    Lévis, Quebec, G6W 0M5

  • Milestone Research Inc.

    London, Ontario, N5W 6A2

  • KGK Science Inc

    London, Ontario, N6A 5R8

  • Manna Research (Mirabel QC)

    Mirabel, Quebec, J7J 2K8

  • Viable Clinical Research Corp

    Mission, British Columbia, V2V 1C6

  • Malton Medical Clinic

    Mississauga, Ontario, L4V 1P1

  • Recherche GCP Research

    Montreal, Quebec, H1M 1B1

  • Centre Medical Acadie

    Montreal, Quebec, H4N 2W2

  • SKDS Research Inc

    Newmarket, Ontario, L3Y 5G8

  • King Street Medical Clinic

    Oshawa, Ontario, L1H 1G6

  • Manna Research (Montreal)

    Pointe-Claire, Quebec, H9R 4S3

  • Diex Recherche Quebec Inc.

    Québec, Quebec, G1N 4V3

  • Centre de Recherche Saint-Louis

    Québec, Quebec, G1W 4R4

  • Bluewater Clinical Research Group Inc

    Sarnia, Ontario, N7T 4X3

  • Viable Clinical Research Corp

    Scarborough Village, Ontario, M1P 2T7

  • Diex Recherche Sherbrooke Inc.

    Sherbrooke, Quebec, J1L 0H8

  • Dr. Steven V. Zizzo Medicine Professional Corporation

    Stoney Creek, Ontario, L8J 0B6

  • Manna Research (Stoney Creek)

    Stoney Creek, Ontario, L8J 3W2

  • Ocean West Research Clinic

    Surrey, British Columbia, V3Z 2N6

  • Canadian Phase Onward Inc.

    Toronto, Ontario, M3J 0K2

  • LMC Clinical Research Inc

    Toronto, Ontario, M4G 3E8

  • Manna Research (Toronto)

    Toronto, Ontario, M9W 4L6

  • James K. Lai MD Inc

    Vancouver, British Columbia, V5Z 1K3

  • Dr. MB Jones Inc

    Victoria, British Columbia, V8V 4A1

  • Diex Recherche Victoriaville Inc.

    Victoriaville, Quebec, G6P 6P6

  • Dr. Sabeen Anwar Medicine Professional Corporation

    Windsor, Ontario, N8X 1T3

  • Clinical Research& Arthritis Centre

    Windsor, Ontario, N8X 2C9

  • Devonshire Clinical Research Inc.

    Woodstock, Ontario, N4S 5P5

Other trials in Canada

About this study

Official title: A Double-Blind, Placebo-Controlled, Phase 2B Study to Assess the Efficacy and Safety of a 14-Day Dosing Regimen of 3 Doses of ATB-346 Versus Placebo, Orally Administered Once Daily to Patients Diagnosed With Osteoarthritis of the Knee

The primary objective of this study is to evaluate the efficacy of a 14-day dosing regimen of ATB-346 at doses of 150 mg, 200 mg and 250 mg compared to placebo in reducing osteoarthritis knee pain as measured by changes in the post-treatment WOMAC subscale pain score relative to each patient's pretreatment baseline WOMAC assessment.Safety will be assessed via measurements of vital signs and clinical laboratory tests at baseline and at various time points during the study, patient monitoring, and by the documentation of adverse events.

Read the detailed description

The primary objective of this study is to evaluate the efficacy of a 14-day dosing regimen of once daily administration of ATB-346 at doses of 150 mg, 200 mg and 250 mg compared to placebo in reducing osteoarthritis knee pain as measured by changes in the post-treatment WOMAC subscale pain score relative to each patient's pretreatment baseline WOMAC assessment.A total of 360 evaluable patients are planned in this study: 250 mg (n=120); 200 mg (n=120); 150 mg (n=60); placebo (n=60).

Safety will be assessed via measurements of vital signs and clinical laboratory tests at baseline and at various time points during the study, patient monitoring, and by the documentation of adverse events.

Conditions
Osteoarthritis
Being tested
ATB-346 low dose, Placebo, ATB-346 mid-dose, ATB-346 standard dose
Keywords
Knee, WOMAC, NSAID, Pain
Medical subject headings
Osteoarthritis, Pain

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ATB-346 low doseDrug

    Also called Active comparator

    Double blind comparison of orally administered ATB-346 versus placebo in osteoarthritis patients

  • PlaceboOther

    Also called Non-active comparator

    Double blind comparison of orally administered ATB-346 versus placebo in osteoarthritis patients

  • ATB-346 mid-doseDrug

    Also called Active comparator

    Double blind comparison of orally administered ATB-346 versus placebo in osteoarthritis patients

  • ATB-346 standard doseDrug

    Also called Active comparator

    Double blind comparison of orally administered ATB-346 versus placebo in osteoarthritis patients

Study groups in NCT03978208
Study groupRoleWhat they receive
Placebo ComparatorActive comparatorATB-346 150 mg overencapsulated tablet taken by mouth once daily for 14 days
Receives: Drug: ATB-346 low dose
ATB-346 mid-doseActive comparatorATB-346 200 mg overencapsulated tablet taken by mouth once daily for 14 days
Receives: Drug: ATB-346 mid-dose
ATB-346 standard doseActive comparatorATB-346 250 mg overencapsulated tablet taken by mouth once daily for 14 days
Receives: Drug: ATB-346 standard dose
Active ComparatorPlacebo comparatorOverencapsulated placebo tablet taken by mouth once daily for 14 days
Receives: Other: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. 5-item pain intensity measure

    Self reported pain intensity over the past 48 hours. Each item is scored 0-10 (0 = no pain; 10 = pain as bad as can be), yielding a total between 0 and 50

    Measured: Previous 48 hours

Secondary outcomes (5)
  1. 2-item stiffness intensity measure

    Self reported pain intensity over the past 48 hours. Each item is scored 0-10 (0 = no pain; 10 = pain as bad as can be), yielding a total between 0 and 20

    Measured: Previous 48 hours

  2. 17-item difficulty performing daily activities measure

    Self reported pain intensity over the past 48 hours. Each item is scored 0-10 (0 = no pain; 10 = pain as bad as can be), yielding a total between 0 and 170

    Measured: Previous 48 hours

  3. Measurement of whole blood cyclo-oxygenase activity

    Thromboxane B2 (TXB2) blood levels (pg/mL) will be measured after 1, 4 and 14 days of treatment. samples taken on days 1, 4 and 14. Decreases (measured in pg/mL) in the blood levels of thromboxane B2 are a direct measure of the effect of treatment on cyclo-oxygenase activity and the reduced production of this inflammatory mediator, i.e., thromboxane B2.

    Measured: After 1, 4 and 14 days of treatment dosing.

  4. Number of patients with genetic variations in the drug modifying enzyme CYP2C9 that may alter the metabolism of ATB-346 will be investigated.

    CYP2C9 isoforms will be measured in one blood sample taken prior to study drug dosing.

    Measured: Samples will be retained through study completion and analyzed within 1 year of study initiation.

  5. Number of participants with treatment-related adverse events

    The safety of ATB-346 will be monitored via on study and two week post study physician and clinical laboratory assessments.

    Measured: Pre-study and days 4, 14 and 24.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted7 Jun 2019
  2. Study start29 Mar 2019
  3. Primary completion29 Dec 2019
  4. Study completion29 Dec 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
381 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03978208
Sponsor's protocol ID
ATB-346-P2B-DRF
Status last verified
Jul 2022
First submitted
18 Mar 2019
Last updated
21 Jul 2022
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing ATB-346 low dose, ATB-346 mid-dose and ATB-346 standard dose in people with Osteoarthritis, run by Antibe Therapeutics Inc. at 35 sites in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 7 inclusion and 19 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 21 Jul 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 35 sites in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

5-item pain intensity measure (time frame: Previous 48 hours). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Jul 2022.

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