A Trial Evaluating Safety, Tolerability and Efficacy of CTX340 in Participants With Hypertension
Recruiting
Phase 1Phase 2Interventional Study
Hypertension
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Prior Safety Data
This treatment has already been tested in at least one earlier human trial.
Ready to participate?
Review the details below, then apply to join this clinical trial.
At a Glance
Age
18 – 75
Sex
Any
Trial phase
Phase 1/2
Study type
Interventional
Purpose
Treatment
Participants needed
69 (estimated)
Sponsor
CRISPR Therapeutics AG · Industry
Who this trial is looking for
This trial is looking for adults with uncontrolled high blood pressure. Participants will take a treatment called CTX340 and be closely monitored to see how it affects their blood pressure.
Are You a Good Fit for This Trial?
Must be takingAntihypertensive medications
Rules you outSignificant coagulation disorderUncontrolled thyroid disease
You may be able to join if
I am between 18 and 75 years old.
I have a body mass index of 40 or lower.
My average blood pressure is between 130 and 160 mm Hg despite treatment.
I am currently taking at least four blood pressure medications.
I am postmenopausal if I have the ability to become pregnant.
If I can produce sperm, I will use effective contraception.
My partner, if they can become pregnant, will also use effective contraception.
You may not be able to join if
I have signs of primary aldosteronism.
My average diastolic blood pressure is 65 mm Hg or lower.
I have high blood pressure caused by a treatable vascular issue.
I have treatable causes of uncontrolled high blood pressure.
I had renal artery denervation in the last year.
I experience orthostatic hypotension.
My complete blood count is outside normal ranges.
I have liver disease.
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer a few quick questions to see if you may meet the eligibility requirements.
A Study of CTX340 in Participants with Uncontrolled Hypertension.
Trial Locations
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Eligibility Criteria
Key Inclusion Criteria:
1. Age: ≥18 and ≤75 years.
2. Body mass index ≤40 kg/m2.
3. 24-hour mean ambulatory blood pressure monitoring (ABPM) systolic blood pressure (SBP) measurement of ≥130 mm Hg but ≤160 mm Hg despite treatment
4. Be on treatment with ≥4 antihypertensive therapies at effective do…
Key Inclusion Criteria:
1. Age: ≥18 and ≤75 years.
2. Body mass index ≤40 kg/m2.
3. 24-hour mean ambulatory blood pressure monitoring (ABPM) systolic blood pressure (SBP) measurement of ≥130 mm Hg but ≤160 mm Hg despite treatment
4. Be on treatment with ≥4 antihypertensive therapies at effective doses, of which ≥1 must be a diuretic.
5. Participants who at any point had childbearing potential must currently be postmenopausal
6. All participants capable of producing sperm must agree to the use of an acceptable method of effective contraception and their partners with childbearing potential should also agree to use an effective method of contraception.
Exclusion Criteria:
1. Serum aldosterone and direct renin concentration (or plasma renin activity \[PRA\]) suggestive of primary aldosteronism
2. Mean diastolic blood pressure (DBP) ≤65 mm Hg on screening ABPM.
3. Participants with vascular cause of hypertension which may be amendable to revascularization
4. Participants with treatable/reversible causes of uncontrolled hypertension
5. History of renal artery denervation within past 12 months.
6. Orthostatic hypotension
7. Complete blood count (CBC) outside the specified ranges per protocol.
8. Evidence of liver disease
9. History of a significant coagulation disorder.
10. Uncontrolled or untreated thyroid disease
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