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Not yet recruitingNCT07835984Updated Sep 23, 2026

A Study to Evaluate Efficacy and Safety of GW906 Used as Add-on Therapy in Patients With Hypertension Not Adequately Controlled by One or Two Antihypertensive Medications

A Phase 2 interventional study of GW906 and Placebo in Hypertension, sponsored by Shenzhen Salubris Pharmaceuticals Co., Ltd.. Not yet recruiting at 1 site in China. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-23.

Sponsored by Shenzhen Salubris Pharmaceuticals Co., Ltd. · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
560
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this study is to evaluate the effect of GW906 on systolic and diastolic blood pressure and to characterize the pharmacodynamic (PD) effects and safety of GW906 as add-on therapy.

Read the detailed description

This study is a multicenter, randomized, double-blind, placebo-controlled Phase II clinical study designed to evaluate the efficacy, safety, and pharmacokinetics of GW906 Injection used as add-on therapy in patients with hypertension not adequately controlled by one or two antihypertensive medications.

Participants are randomized to receive either GW906 Injection or placebo for 6 months.

02

Conditions studied

  • Hypertension

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Keywords

  • Hypertension
  • siRNA
  • GW906
  • SAL0132
  • Add-on Therapy
03

In context

Hypertension

6,114 studies on the registry are indexed under Hypertension; 912 are open to participants now.

This study's planned enrollment of 560 is above the median of 100 across 4,575 interventional studies indexed under Hypertension.

Browse Hypertension studies →

Lead sponsor

Shenzhen Salubris Pharmaceuticals Co., Ltd. is the lead sponsor of 42 studies on the registry; 18 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age ≥ 18 years, of either sex.
  • Treated hypertension on stable therapy with up to 1 or 2 antihypertensive medications. Stable therapy is defined as having no change in antihypertensive medication or dose within 4 weeks prior to randomization.
  • Mean sitting systolic blood pressure (msSBP) ≥ 140 mmHg and \< 180 mmHg at the randomization visit.
  • Willing to participate in the study and provide written .

Exclusion criteria

Exclusion Criteria:

  • Secondary hypertension.
  • orthostatic hypotension.
  • (ALT) or aspartate aminotransferase (AST) >2.5× (ULN); Total > 1.5 × ULN; (INR) > 2.0; Serum potassium > 5.0 mmol/L or \< 3.5 mmol/L; ≤30 mL/min/1.73m\^2.
  • Received an agent within the last 3 months.
  • Type 1 diabetes mellitus, poorly controlled Type 2 diabetes mellitus.
  • History of any cardiovascular event within 12 months.
  • History of intolerance to SC injection(s).
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

INR, PT and aPTT (clotting tests)

Blood tests of how long blood takes to clot. The INR is the prothrombin time (PT) put on a common scale; about 1 is usual for someone not taking a blood thinner.

Criteria often make an exception for people on a blood thinner such as warfarin, whose INR is raised on purpose.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Investigational drug or device

A drug or device being studied in a clinical trial.

It may be new, or already approved and being studied for another use, dose or form. Criteria often leave out people who took part in another study of one within a recent period, commonly 30 days or five half-lives.

05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
560 participants (estimated)

Study arms

  • Active comparator
    GW906

    Subcutaneous injection. 24 weeks

    Drug: GW906

  • Placebo comparator
    Placebo

    Subcutaneous injection. 24 weeks

    Drug: Placebo

Interventions

  • DrugGW906

    Subcutaneous injection. 24 weeks

  • DrugPlacebo

    Subcutaneous injection. 24 weeks

06

What researchers measure

Primary outcomes

  1. Change from baseline in mean sitting systolic blood pressure (msSBP) at Week 12

    msSBP will be measured in the office using a validated sphygmomanometer, with the participant seated and resting quietly for at least 5 minutes. The primary endpoint is the change from baseline, calculated as the Week 12 value minus the baseline value, expressed in mmHg

    Time frame: Baseline and Month 3

Secondary outcomes

  1. Change from baseline in mean sitting systolic blood pressure (msSBP) at Weeks 4, 8, and 24 of the double-blind period

    Change from baseline, calculated as the Week 24 value minus the baseline value, expressed in mmHg

    Time frame: Baseline, Weeks 4, 8, and 24

07

Study locations

1 site
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Oct 2026; primary completion for Oct 2027, 12 months later.

Of 56 industry-sponsored phase 2 interventional studies under Hypertension, half reached primary completion within 14 months of starting (the median), counting those still running; a quarter within 9 and three quarters within 22. This study's planned 12 months is below that.

Counting every sponsor, half of 110 studies reached it within 25 months; a quarter within 11 and three quarters within 56.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 17, 2026
First posted
Sep 23, 2026
StartEst.
Oct 2026
Primary completionEst.
Oct 2027
CompletionEst.
Oct 2027
Last update
Sep 23, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 23, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT07835984
Responsible party
Sponsor
First posted
Sep 23, 2026
Start date
Oct 2026 (estimated)
Primary completion
Oct 2027 (estimated)
Completion
Oct 2027 (estimated)
Last update
Sep 23, 2026

Study contacts

Jianan Wang, Professor
Contact
jiguangwang@rjh.com.cn
86-1599008651

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.

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Studies of the drug tested here: GW906

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