HypertensionPhase 2NCT00562549
Safety and Effects of SLx-2101 Taken for up to 14 Days on Blood Pressure in Patients With Hypertension
A Phase 2 study testing SLx-2101 in people with Hypertension, run by Retension Pharmaceuticals. Inc. at 1 site in United Kingdom.
Trial summary
The purpose is to determine the effective dosage and to study the effects of this dosage taken for 12 days on systolic and diastolic blood pressure in patients with hypertension. Read more about this study
- Who is it for?
- Ages 18 to 80 years
- Conditions the study is for
- Hypertension
- What is being tested?
- SLx-2101
- Could I receive a placebo?
- Yes, some participants may receive a placebo
- How many people
- 26 participants
- Where
- 1 siteUnited Kingdom
- Study dates
- Jul 2007to Dec 2007
- 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 18 to 80 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Male or females between 18 and 80 years, inclusive
- Moderate to severe hypertension
- Body weight within a body mass index range of 18 - 32 kg/m2
Who cannot join
- Subject is receiving more than four antihypertensive agents
- History of drug abuse
- Exposure to a new chemical entity within 3 months prior to the first day of dosing
Trial locations and contacts
1 site in 1 country.
About this study
Official title: A Pilot Phase IIa Randomised, Double-blind, Placebo-controlled, Crossover Study to Examine the Safety, Tolerability and Pharmacodynamic Effects on Blood Pressure of Repeat Oral Doses of SLx-2101 5, 10 or 20 mg Once Daily for up to 14 Days in Patients With Hypertension
The purpose is to determine the effective dosage and to study the effects of this dosage taken for 12 days on systolic and diastolic blood pressure in patients with hypertension.
Read the detailed description
- Office seated peripheral systolic and diastolic blood pressure
- Adverse events and vital signs
- Plasma concentrations of SLx-2101
- Conditions
- Hypertension
- Being tested
- SLx-2101
- Medical subject headings
- Hypertension
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
SLx-2101Drug
| Study group | Role | What they receive |
|---|---|---|
| 1 | Experimental | SLx-2101 Receives: Drug: SLx-2101 |
| 2 | Placebo comparator | Matching Placebo Dose Receives: Drug: SLx-2101 |
What is being measured
The primary outcome is the main question the study is designed to answer.
Office seated peripheral systolic and diastolic blood pressure
Measured: 12 days
Secondary outcomes (1)
Adverse events and changes in vital signs
Measured: 12 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted22 Nov 2007 (estimated)
- Study startJul 2007
- Primary completionDec 2007
- Study completionDec 2007
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for HypertensionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- Crossover
- Masking
- Double blind
- Who is masked
- Participant, Investigator
- Enrolment
- 26 participants (actual)
Sponsor and investigators
- Lead sponsor
- Retension Pharmaceuticals. Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
- Investigators
- Ian B Wilkinson, MD, Principal investigator, Addenbrooke's Hospital, Cambridge
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00562549
- Sponsor's protocol ID
- SLx-2101-07-05
- Status last verified
- Apr 2026
- First submitted
- 20 Nov 2007
- Last updated
- 30 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
Study at a glance
From the registry record, last updated by the sponsor on 30 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Pilot Phase IIa Randomised, Double-blind, Placebo-controlled, Crossover Study to Examine the Safety, Tolerability and Pharmacodynamic Effects on Blood Pressure of Repeat Oral Doses of SLx-2101 5, 10 or 20 mg Once Daily for up to 14 Days in Patients With Hypertension
- ClinicalTrials.gov ID
- NCT00562549
- Acronym / sponsor ID
- SLx-2101-07-05
- Conditions
- Hypertension
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 26 participants (actual)
- Lead sponsor
- Retension Pharmaceuticals. Inc.Industry (pharma, biotech, devices)
- Study start
- Jul 2007
- Primary completion
- Dec 2007 (actual)
- Study completion
- Dec 2007 (actual)
- First posted
- 22 Nov 2007 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
The purpose is to determine the effective dosage and to study the effects of this dosage taken for 12 days on systolic and diastolic blood pressure in patients with hypertension.
Detailed description
- Office seated peripheral systolic and diastolic blood pressure
- Adverse events and vital signs
- Plasma concentrations of SLx-2101
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Double blind (participant, investigator)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| 1 | Experimental | Drug: SLx-2101SLx-2101 |
| 2 | Placebo comparator | Drug: SLx-2101Matching Placebo Dose |
Who may qualify
- Ages
- 18 to 80 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Male or females between 18 and 80 years, inclusive
- Moderate to severe hypertension
- Body weight within a body mass index range of 18 - 32 kg/m2
Key exclusion criteria (3 listed)
- Subject is receiving more than four antihypertensive agents
- History of drug abuse
- Exposure to a new chemical entity within 3 months prior to the first day of dosing
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| SLx-2101 | Drug | 1, 2 |
Primary outcome
Office seated peripheral systolic and diastolic blood pressure
Time frame: 12 days
1 secondary outcome
Adverse events and changes in vital signs
Time frame: 12 days
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Apr 2026.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ian B Wilkinson, MD principal investigator
Addenbrooke's Hospital, Cambridge
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 2 study testing SLx-2101 in people with Hypertension, run by Retension Pharmaceuticals. Inc. at 1 site in United Kingdom.
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 3 inclusion and 3 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 30 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United Kingdom. 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?
Office seated peripheral systolic and diastolic blood pressure (time frame: 12 days). 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 30 Apr 2026.