NCT02804074

Brief Summary

MASTER study is a 4-year prospective, randomized, open-label, blinded-endpoint study (PROBE) comparing 2 management strategies 1) office BP as a guide to treatment, or 2) 24-hour ABP as a guide to treatment. Study objectives are to investigate whether a management strategy based on out-of-office BP (Ambulatory BP monitoring) versus a management strategy based on office BP measurements is associated with differences in outcome, including cardiovascular and renal intermediate end points at one year; cardiovascular events at 4 years and changes in a number of blood pressure-related variables throughout the study. Patients will be followed-up during the first year focusing on changes in left ventricular mass index (LVMI, co-primary endpoint) and Urinary albumin excretion (UAE, albumin/creatinine ratio, co-primary end-point), and during the whole 48 month period for both changes in LVMI and UAE and events including all-cause mortality, CV morbidity and mortality, cerebral morbidity and mortality.A total of 1240 subjects will be recruited by 30 centers, taking into account a dropout rate of 15% (620 subjects per randomization arm).

Trial Health

80
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,240

participants targeted

Target at P75+ for not_applicable

Timeline
6mo left

Started Oct 2018

Longer than P75 for not_applicable

Geographic Reach
2 countries

2 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress93%
Oct 2018Dec 2026

First Submitted

Initial submission to the registry

June 14, 2016

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 17, 2016

Completed
2.3 years until next milestone

Study Start

First participant enrolled

October 1, 2018

Completed
8.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2026

Last Updated

March 30, 2026

Status Verified

March 1, 2026

Enrollment Period

8.2 years

First QC Date

June 14, 2016

Last Update Submit

March 25, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • changes in LVMI (co-primary endpoint)

    12 months

  • UAE (albumin/creatinine ratio, co-primary end-point)

    12 months

Study Arms (2)

Group 1

ACTIVE COMPARATOR

Management strategy of blood pressure based on office BP as a guide to treatment

Other: Optimization of antihypertensive treatment based on office BP

Group 2

EXPERIMENTAL

Management strategy of blood pressure based on 24-hour ABPM as a guide to treatment

Other: Optimization of antihypertensive treatment based on 24-hour ABPM

Interventions

Optimization of antihypertensive treatment based on office BP

Group 1

Optimization of antihypertensive treatment based on 24-hour ABPM

Group 2

Eligibility Criteria

Age35 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male and female subjects
  • Age 35-80 years
  • Masked uncontrolled (in treatment) hypertension: office BP \<140/90 mmHg, and one or more of the following situations:
  • Ambulatory daytime BP \>135/85 mmHg
  • Ambulatory night-time ABP \> 120/70 mmHg
  • Ambulatory 24h ABP \>130/80 mmHg
  • eGFR ≥45 mL/min/1.73 m2 (CKD-EPI creatinine equation 2009)

You may not qualify if:

  • eGFR \<45 mL/min/1.73 m2 (CKD-EPI creatinine equation 2009), and in particular severe chronic renal failure defined as serum creatinine \> 250 umol/l;
  • Patients in unstable clinical conditions;
  • Known secondary hypertension;
  • Orthostatic hypotension (SBP fall \> 20 mmHg on standing);
  • Dementia (clinical diagnosis);
  • Hepatic disease as determined by either AST or ALT values \> 2 times the upper limit of normal
  • History of gastrointestinal surgery or disorders which could interfere with drug absorption
  • Known allergy or contraindications to one of the drugs to be administered in the study
  • History of malignancy including leukaemia and lymphoma (but not basal cell skin cancer) within the last 5 years
  • History of clinically significant autoimmune disorders such as systemic lupus erythematosus.
  • History of drug or alcohol abuse within the last 5 years
  • History of non-compliance to medical regimens and/or patients who are considered potentially unreliable
  • Inability or unwillingness to give free informed consent
  • Pregnancy or planned pregnancy during study period.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

Istituto Auxologico Italiano

Milan, Italy

NOT YET RECRUITING

Fundacion Venezolana de Hipertension Arterial/Instituto de Enfermedades Cardiovasculares de LUZ

Maracaibo, Venezuela

RECRUITING

Related Publications (1)

  • Parati G, Agabiti-Rosei E, Bakris GL, Bilo G, Branzi G, Cecchi F, Chrostowska M, De la Sierra A, Domenech M, Dorobantu M, Faria T, Huo Y, Jelakovic B, Kahan T, Konradi A, Laurent S, Li N, Madan K, Mancia G, McManus RJ, Modesti PA, Ochoa JE, Octavio JA, Omboni S, Palatini P, Park JB, Pellegrini D, Perl S, Podoleanu C, Pucci G, Redon J, Renna N, Rhee MY, Rodilla Sala E, Sanchez R, Schmieder R, Soranna D, Stergiou G, Stojanovic M, Tsioufis K, Valsecchi MG, Veglio F, Waisman GD, Wang JG, Wijnmaalen P, Zambon A, Zanchetti A, Zhang Y. MASked-unconTrolled hypERtension management based on office BP or on ambulatory blood pressure measurement (MASTER) Study: a randomised controlled trial protocol. BMJ Open. 2018 Dec 19;8(12):e021038. doi: 10.1136/bmjopen-2017-021038.

MeSH Terms

Conditions

Masked Hypertension

Condition Hierarchy (Ancestors)

HypertensionVascular DiseasesCardiovascular Diseases

Study Officials

  • Gianfranco Parati, MD

    Istituto Auxologico Italiano

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Gianfranco Parati, MD

CONTACT

Alberto Zanchetti, MD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 14, 2016

First Posted

June 17, 2016

Study Start

October 1, 2018

Primary Completion (Estimated)

December 1, 2026

Study Completion (Estimated)

December 1, 2026

Last Updated

March 30, 2026

Record last verified: 2026-03

Locations