Cerebral Amyloid AngiopathyPhase 2NCT05709314
A Study of AMDX-2011P in Participants With CAA
A Phase 2 study testing AMDX-2011P in people with Cerebral Amyloid Angiopathy, run by Amydis Inc. at 1 site in United States.
Trial summary
The purpose of this study is to assess safety, tolerability, plasma pharmacokinetics and biologic activity of a single intravenous dose of AMDX-2011P in participants with cerebral amyloid angiopathy (CAA). Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Cerebral Amyloid Angiopathy
- What is being tested?
- AMDX-2011P
- Type of treatment
- Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 25 participants
- Where
- 1 siteUnited States
- Study dates
- 9 Jul 2024to Dec 2026
- Phase
- Phase 2
- Are there results?
- Not yet: the study is under way
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 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Diagnosis of hereditary CAA or probable and definite symptomatic or asymptomatic sporadic CAA diagnosed through genetic testing or according to the modified Boston neuroradiological criteria, who had undergone at least one brain magnetic resonance imaging (MRI)prior to entry into study.
- Abnormality consistent with CAA on historical MRI.
- In general good health
Who cannot join
- Presence of any underlying physical or psychological medical condition that, in the opinion of the investigator, would make it unlikely that the participant will complete the study per protocol.
- Clinically significant laboratory abnormalities assessed by the investigator.
- Active malignancy and/or history of malignancy in the past 5 years, with the exception of completely excised non-melanoma skin cancer or low-grade cervical intraepithelial neoplasia.
- Prolonged QTcF (>450 ms for males and >470 ms for females),cardiac arrhythmia, or any clinically significant abnormality in the resting ECG, as judged by the investigator.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
United States1 site, 1 recruiting
- Recruiting
Associated Retina Consultants
Phoenix, Arizona, 85020
Mallory Mintert, mallory.mintert@doctrials.com
About this study
Official title: A Phase 2, Open-Label Study of AMDX-2011P as a Retinal Tracer in Participants With Cerebral Amyloid Angiopathy (CAA)
The purpose of this study is to assess safety, tolerability, plasma pharmacokinetics and biologic activity of a single intravenous dose of AMDX-2011P in participants with cerebral amyloid angiopathy (CAA).
Read the detailed description
This open-label, masked endpoint assessment study will evaluate the safety, tolerability, plasma pharmacokinetics (PK) and biological activity of an intravenous (IV) dose of AMDX-2011P in participants with CAA. Assessments of retinal images will be conducted by central masked assessors.
Participants will be admitted to the study site where eye examination and retinal imaging will be conducted before administration of the study drug. AMDX-2011P will be administered through a single IV bolus injection followed by safety assessments, retinal imaging and PK blood collection.
- Conditions
- Cerebral Amyloid Angiopathy
- Being tested
- AMDX-2011P
- Keywords
- CAA
- Medical subject headings
- Cerebral Amyloid Angiopathy
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AMDX-2011PDrug
AMDX-2011P single bolus injection intravenous for diagnostic review
| Study group | Role | What they receive |
|---|---|---|
| AMDX-2011P 100 mg | Experimental | AMDX2011P 100mg (4ml) single bolus injection intravenous for diagnostic review Receives: Drug: AMDX-2011P |
What is being measured
The primary outcome is the main question the study is designed to answer.
AMDX-2011P Adverse Events Profile
Incidence, nature and severity of AEs/SAEs
Measured: 8 days
Secondary outcomes (3)
Concentration of AMDX-2011P
Plasma PK Concentration (CMax)AMDX-2011P to AMDX-2011
Measured: 2 hours
Pharmacokinetic Analysis of AMDX-2011P
Area under the plasma versus time curve (AUC)
Measured: 2 hours
Biological Activity
Detection of amyloid deposits in the retina after intravenous AMDX-2011P administration using a conventional retinal fundus fluorescence imaging device.
Measured: 8 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted2 Feb 2023
- Study start9 Jul 2024
- Primary completionDec 2026 (estimated)
- Study completionDec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cerebral Amyloid AngiopathyStudies 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
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Model description
- Phase 2, open-label, single arm, masked endpoint multicenter study
- Masking
- None (open label)
- Enrolment
- 25 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Amydis Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05709314
- Sponsor's protocol ID
- AMDX-2011P-001
- Status last verified
- Feb 2026
- First submitted
- 24 Jan 2023
- Last updated
- 13 Feb 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 13 Feb 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase 2, Open-Label Study of AMDX-2011P as a Retinal Tracer in Participants With Cerebral Amyloid Angiopathy (CAA)
- ClinicalTrials.gov ID
- NCT05709314
- Acronym / sponsor ID
- AMDX-2011P-001
- Conditions
- Cerebral Amyloid Angiopathy
- Keywords
- CAA
- Phase
- Phase 2
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 25 participants (estimated)
- Lead sponsor
- Amydis Inc.Industry (pharma, biotech, devices)
- Study start
- 9 Jul 2024 (actual)
- Primary completion
- Dec 2026 (estimated)
- Study completion
- Dec 2026 (estimated)
- First posted
- 2 Feb 2023 (actual)
- 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 of this study is to assess safety, tolerability, plasma pharmacokinetics and biologic activity of a single intravenous dose of AMDX-2011P in participants with cerebral amyloid angiopathy (CAA).
Detailed description
This open-label, masked endpoint assessment study will evaluate the safety, tolerability, plasma pharmacokinetics (PK) and biological activity of an intravenous (IV) dose of AMDX-2011P in participants with CAA. Assessments of retinal images will be conducted by central masked assessors.
Participants will be admitted to the study site where eye examination and retinal imaging will be conducted before administration of the study drug. AMDX-2011P will be administered through a single IV bolus injection followed by safety assessments, retinal imaging and PK blood collection.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
- Model description
- Phase 2, open-label, single arm, masked endpoint multicenter study
| Arm | Type | Receives |
|---|---|---|
| AMDX-2011P 100 mg | Experimental | Drug: AMDX-2011PAMDX2011P 100mg (4ml) single bolus injection intravenous for diagnostic review |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (3 listed)
- Diagnosis of hereditary CAA or probable and definite symptomatic or asymptomatic sporadic CAA diagnosed through genetic testing or according to the modified Boston neuroradiological criteria, who had undergone at least one brain magnetic resonance imaging (MRI)prior to entry into study.
- Abnormality consistent with CAA on historical MRI.
- In general good health
Key exclusion criteria (4 listed)
- Presence of any underlying physical or psychological medical condition that, in the opinion of the investigator, would make it unlikely that the participant will complete the study per protocol.
- Clinically significant laboratory abnormalities assessed by the investigator.
- Active malignancy and/or history of malignancy in the past 5 years, with the exception of completely excised non-melanoma skin cancer or low-grade cervical intraepithelial neoplasia.
- Prolonged QTcF (>450 ms for males and >470 ms for females),cardiac arrhythmia, or any clinically significant abnormality in the resting ECG, as judged by the investigator.
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 |
|---|---|---|
| AMDX-2011PAMDX-2011P single bolus injection intravenous for diagnostic review | Drug | AMDX-2011P 100 mg |
Primary outcome
AMDX-2011P Adverse Events Profile
Time frame: 8 days
Incidence, nature and severity of AEs/SAEs
3 secondary outcomes
Concentration of AMDX-2011P
Time frame: 2 hours
Pharmacokinetic Analysis of AMDX-2011P
Time frame: 2 hours
Biological Activity
Time frame: 8 days
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 13 Feb 2026.
- Individual participant dataSharing planned: No
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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.
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 AMDX-2011P in people with Cerebral Amyloid Angiopathy, run by Amydis Inc. at 1 site in United States.
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 4 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: looking for participants now, as of the sponsor's last update on 13 Feb 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 States. 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. 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?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Matthew Lehman (8599050402, info@amydis.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
AMDX-2011P Adverse Events Profile (time frame: 8 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 13 Feb 2026.