Efficacy and Safety of GMRx2 Compared to Placebo for the Treatment of Hypertension

Last updated: December 13, 2023
Sponsor: George Medicines PTY Limited
Overall Status: Completed

Phase

3

Condition

Vascular Diseases

Circulation Disorders

Williams Syndrome

Treatment

Telmisartan 10 mg/amlodipine 1.25 mg/indapamide 0.625 mg

Telmisartan 20 mg/amlodipine 2.5 mg/indapamide 1.25 mg

Placebo

Clinical Study ID

NCT04518306
GMRx2-HTN-2020-PCT1
  • Ages > 18
  • All Genders

Study Summary

Recent hypertension guidelines recommend combination therapy as initial treatment for many or most patients. Several trials suggest triple low-dose combination therapy may be highly effective in terms of achieving blood pressure control without increasing adverse effects. This trial is designed to investigate the efficacy and safety of GMRx2 in participants with high blood pressure compared to placebo.

Eligibility Criteria

Inclusion

Inclusion Criteria At screening visit:

  1. Provided signed consent to participate in the trial.
  2. Adult aged ≥18 years.
  3. Low calculated CV risk according to local guidelines such that pharmacologicalBP-lowering treatment is not mandatory: e.g. Pooled Cohorts Equation 10-years ASCVDrisk <10% in the USA.
  4. Likely diagnosis of hypertension, defined as one or more of:
  • automated SBP at this clinic visit according to trial methods (see Appendix 2) of ≥130mmHg on no BP lowering medicines or ≥120mmHg on 1 BP lowering medicine thatwill be stopped at this visit, OR
  • documentation in last 6 months of office SBP ≥ 140 mmHg and/or DBP ≥ 90mmHg on noBP lowering medicines or SBP ≥ 130 mmHg and/or DBP ≥ 85mmHg on 1 BP loweringmedicine that will be stopped at this visit, OR
  • documentation in last 6 months of home SBP ≥ 130 mmHg and/or DBP ≥ 80mmHg on noBP lowering medicines or SBP ≥ 120 mmHg and/or DBP ≥ 75mmHg on 1 BP loweringmedicine that will be stopped at this visit, OR
  • documentation in last 6 months of ambulatory daytime SBP ≥ 130 mmHg and/or DBP ≥ 80mmHg on no BP lowering medicines or SBP ≥ 120 mmHg and/or DBP ≥ 75mmHg on 1 BPlowering medicine that will be stopped at this visit
  1. No contraindication to trial medications, including 2-weeks placebo run-in and 4-weeksrandomized treatment period with GMRx2 (dose version 1 or 2) or placebo. At randomization visit:
  2. Home seated mean SBP 130-154 mmHg in the week before the randomization visit.
  3. Adherence of 80-120% to placebo run-in.
  4. Tolerated placebo run-in.
  5. Adherence to home BP monitoring schedule: in the week before randomization, at least 6measures (e.g. ≥2 sets of triplicate measures) including at least 1 morning and 1evening each with ≥2 measures. Morning is defined as any measure in the am and eveningas any measure in the pm. Morning and evening do not have to be same day.

Exclusion

Exclusion Criteria: At screening visit:

  1. Receiving 2 or more BP-lowering drugs.
  2. Clinic seated mean SBP ≥160 mmHg and/or DBP ≥100 mmHg.
  3. Pregnant or had a positive pregnancy test or unwilling to undertake a pregnancy testduring the trial and up to 30 days after the discontinuation of the trial medicationor breastfeeding or of childbearing age and not using an acceptable method ofcontraception. Acceptable methods of birth control include hormonal prescription oralcontraceptives, contraceptive injections, contraceptive patch, intrauterine device,double-barrier method (e.g. condoms, diaphragm, or cervical cap with spermicidal foam,cream, or gel), or male partner sterilization. Contraception should be used for atleast 1 month before the screening visit and until the end of trial participation.
  4. Not suitable for participation in a clinical trial according to local ethical orregulatory requirements related to severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2).
  5. Contraindication, including hypersensitivity (e.g. anaphylaxis or angioedema), to anyof the 3 trial medications.
  6. Current/history of transient ischemic attack, stroke, or hypertensive encephalopathy.
  7. Current/history of acute coronary syndrome, unstable angina, myocardial infarction,percutaneous transluminal coronary revascularization, or coronary artery bypass graft.
  8. Current/history of New York Heart Association class III and IV congestive heartfailure.
  9. Current/history of a known secondary cause of hypertension, such as primaryaldosteronism, renal artery stenosis, pheochromocytoma, or Cushing's syndrome.
  10. Current/history of substantially uncontrolled diabetes (HbA1c > 11.0%) within lastthree months.
  11. Current/history of end-stage renal disease or anuria or estimated glomerularfiltration rate (eGFR) <60 ml/min/1.73m2.
  12. Current/history of aspartate aminotransferase (AST) or alanine aminotransferase (ALT) >3 times the upper limit of normal range within 6 months.
  13. Current concomitant illness or physical impairment or mental condition that in thejudgment of the investigator could interfere with the effective conduct of the trialor constitutes a significant risk to the participants' well-being.
  14. Arm circumference that is too large (>55 cm) or too small (<20 cm) to allow accuratemeasurement of BP.
  15. Currently taking or might need during the trial, a concomitant treatment which isknown to interact significantly with the trial medication: digoxin, lithium, diabeticsreceiving aliskiren, moderate and strong CYP3A4 inhibitors [e.g. ritonavir,ketoconazole, diltiazem], simvastatin >20 mg/day, immunosuppressants.
  16. Might need treatment with drugs that are prohibited during the trial: otherantihypertensive drugs, endothelin receptor antagonists, neprilysin inhibitors, orother drugs that may affect BP (see Error! Reference source not found.).
  17. Current surgical or medical condition that might significantly alter the absorption,distribution, metabolism, or excretion of trial drugs such as prior majorgastrointestinal tract surgery (e.g. gastrectomy, lap band, or bowel resection) oracute flare of inflammatory bowel disease within one year.
  18. Individuals working >2-night shifts per week.
  19. Participated in any investigational drug or device trial within the previous 30 days.
  20. History of alcohol or drug abuse within 12 months. At randomization visit:
  21. Unable to adhere to the trial procedures during the run-in period.
  22. Any of the following which in the investigator's judgment may compromise the safety ofthe participant if randomized to the trial medications:
  23. High or low clinic BP levels even in the light of the values for home BP that areavailable for that participant. The exact levels of BP are not specified, sincethere is clinical uncertainty as to the relevance of BP levels which are high/lowin clinic only; for example the clinical relevance of 'whitecoat hypertension' isuncertain.
  24. High or low home DBP levels. The exact levels of DBP are not specified,reflecting clinical uncertainty of for example isolated diastolic hypertension.However, home DBP values of >99 mmHg may typically be considered as requiringtreatment intensification, and such participants would not be suitable forrandomization.
  25. Any abnormal laboratory value which in the judgment of the investigator couldinterfere with the effective conduct of the trial or constitutes a significant risk tothe participants' well-being.
  26. Fulfilling any of the exclusion criteria mentioned for the screening visit, whenverified again at randomization visit.

Study Design

Total Participants: 295
Treatment Group(s): 3
Primary Treatment: Telmisartan 10 mg/amlodipine 1.25 mg/indapamide 0.625 mg
Phase: 3
Study Start date:
June 06, 2021
Estimated Completion Date:
October 18, 2023

Study Description

TRIAL DRUG:

GMRx2: single pill combination of telmisartan/amlodipine/indapamide Dose version 1: telmisartan 10 mg/amlodipine 1.25 mg/indapamide 0.625 mg Dose version 2: telmisartan 20 mg/amlodipine 2.5 mg/indapamide 1.25 mg I NDICATION: Hypertension

TRIAL TITLE:

Efficacy and safety of GMRx2 compared to placebo for the treatment of hypertension.

OBJECTIVES:

To investigate the efficacy and safety of GMRx2 compared to placebo for the treatment of hypertension.

INTERVENTION:

A 2-week single-blind placebo run-in will be followed by a 4-week double-blind period with randomization to GMRx2 dose version 1, GMRx2 dose version 2 or placebo.

Connect with a study center

  • Castle Hill Medical Centre

    Castle Hill, New South Wales 2154
    Australia

    Site Not Available

  • Princess Alexandra Hospital

    Brisbane, Queensland 4102
    Australia

    Site Not Available

  • Hudson Institute of Medical Research

    Clayton, Victoria 3168
    Australia

    Site Not Available

  • Barwon Health, Geelong University Hospital

    Geelong, Victoria 3220
    Australia

    Site Not Available

  • Curtin University

    Bentley, Western Australia 6102
    Australia

    Site Not Available

  • Royal Perth Hospital

    Perth, Western Australia 6000
    Australia

    Site Not Available

  • University of Abuja Teaching Hospital

    Gwagwalada, Federal Capital Territory 902101
    Nigeria

    Site Not Available

  • Aminu Kano Teaching Hospital

    Kano,
    Nigeria

    Site Not Available

  • Institute of Cardiology, National Hospital of Sri Lanka

    Colombo, 10-01000
    Sri Lanka

    Site Not Available

  • Colombo South Teaching Hospital

    Dehiwala, 10350
    Sri Lanka

    Site Not Available

  • Karapitiya Teaching Hospital

    Galle, 80000
    Sri Lanka

    Site Not Available

  • Jafna Teaching Hospital

    Jaffna, 40000
    Sri Lanka

    Site Not Available

  • Kandy National Hospital

    Kandy, 20000
    Sri Lanka

    Site Not Available

  • Kurunegala Teaching Hospital

    Kurunegala, 60000
    Sri Lanka

    Site Not Available

  • Colombo North Teaching Hospital

    Ragama, 11010
    Sri Lanka

    Site Not Available

  • Steploe Medical Centre

    Soham, Cambridgeshire CB7 5JD
    United Kingdom

    Site Not Available

  • Newquay Medical

    Newquay, Cornwall TR7 1RU
    United Kingdom

    Site Not Available

  • Burbage Surgery

    Hinckley, Leicestershire LE10 2SE
    United Kingdom

    Site Not Available

  • Belmont Health Centre

    Harrow, London HA3 7LT
    United Kingdom

    Site Not Available

  • West Walk Surgery

    Bristol, Somerset BS37 4AX
    United Kingdom

    Site Not Available

  • Brockwood Medical Practice

    Betchworth, Surrey RH3 7NJ
    United Kingdom

    Site Not Available

  • Lakeside Surgery

    Coventry, West Midlands CV3 6NF
    United Kingdom

    Site Not Available

  • Trowbridge Health Centre

    Trowbridge, Wiltshire BA14 8LW
    United Kingdom

    Site Not Available

  • Abbeywell Surgery

    Romsey, SO51 8EN
    United Kingdom

    Site Not Available

  • Albany House Medical Centre

    Wellingborough, NN8 4RW
    United Kingdom

    Site Not Available

  • Elite Clinical Studies

    Phoenix, Arizona 85018
    United States

    Site Not Available

  • Headlands Research

    Scottsdale, Arizona 85260
    United States

    Site Not Available

  • Healthlines Research

    Scottsdale, Arizona 85260
    United States

    Active - Recruiting

  • Quality of Life Medical & Research Centers, LLC

    Tucson, Arizona 85712
    United States

    Site Not Available

  • Valiance Clinical Research

    S. Gate, California 90280
    United States

    Site Not Available

  • Valiance Clinical Research

    Tarzana, California 91356
    United States

    Site Not Available

  • Clinical Research of Brandon

    Brandon, Florida 33511
    United States

    Site Not Available

  • Inpatient Research Clinic

    Hialeah, Florida 33013
    United States

    Site Not Available

  • New Horizon Research Center

    Miami, Florida 33165
    United States

    Site Not Available

  • Suncoast Research Group

    Miami, Florida 33135
    United States

    Site Not Available

  • Ocala Research Institute

    Ocala, Florida 34471
    United States

    Site Not Available

  • Altus Research, Inc

    Palm Beach, Florida 33461
    United States

    Site Not Available

  • Accel Research

    Saint Petersburg, Florida 33709
    United States

    Site Not Available

  • Suncoast Research Associates

    Saint Petersburg, Florida 33173
    United States

    Site Not Available

  • Precision Clinical Research

    Sunrise, Florida 33351
    United States

    Site Not Available

  • Precision Research Center

    Tampa, Florida 33603
    United States

    Site Not Available

  • Meridian Clinical Research

    Savannah, Georgia 31406
    United States

    Site Not Available

  • Buckhead Primary Care Research

    Snellville, Georgia 30078
    United States

    Site Not Available

  • Loyola University

    Maywood, Illinois 60153
    United States

    Site Not Available

  • Meridian Clinical Research

    Baton Rouge, Louisiana 70809
    United States

    Site Not Available

  • The University of Tennessee Health Science Center

    Memphis, Tennessee 38105
    United States

    Site Not Available

  • Synergy Groups Medical

    Houston, Texas 77036
    United States

    Site Not Available

  • Synergy Groups Medical

    Missouri City, Texas 77459
    United States

    Site Not Available

  • North Hills Medical Research

    North Richland Hills, Texas 76180
    United States

    Site Not Available

  • Meridian Clinical Research

    Portsmouth, Virginia 23703
    United States

    Site Not Available

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