NCT07826689RecruitingPhase 1/2
A Phase 1/2a Study of Oral PRO-1562 in Healthy Subjects and Patients With Relapsing Multiple Sclerosis
A Randomized, Double-Blind, Placebo-Controlled Phase 1/2a Trial of PRO-1562 in Healthy Adults and Adults With Multiple Sclerosis and Chronic Optic Neuropathy
Source: ClinicalTrials.gov · Last updated 29 Sept 2026
Brief summary (registry, in English)
Phase 1 will test single oral doses of PRO-1562 in healthy adult subjects to characterize the safety and the amount of drug that is absorbed into the body. Some subjects will have lumbar punctures performed to measure the amount of drug that crosses the blood-brain barrier since that is the site of drug activity. Phase 2a will be a 6-month trial to test the ability of once monthly dosing of PRO-1562 to promote remyelination of the CNS and provide clinical benefit to adult patients with relapsing multiple sclerosis (RMS) who also have long-term vision problems diagnosed as chronic optic neuropathy. The benefits of remyelination will be measured using tests of visual acuity, speed of optic nerve conduction signals, and clinical assessments of cognitive and motor function. PRO-1562 will be added on to a stable regimen of MS disease modifying therapy.
- Status (registry)
- Recruiting
- Phase (registry)
- Phase 1/2
- Study type
- Interventional
- Enrollment
- 160 (estimated)
- First submitted
- 8 Sept 2026
- Start date
- Oct 2026
- Primary completion date
- Dec 2028
- Lead sponsor
- Progentos Therapeutics
- Diseases
- Multiple sclerosis
- NCT number
- NCT07826689
What you commit to
- Study type: Interventional · Phase 1/2
- Planned participants: 160
- From Oct 2026 to the primary completion date, Dec 2028
- 1 site in 1 country
- Visits and tests: ask the trial team, the registry does not list them
Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.
Who cannot take part
Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.
Criteria the registry did not label
- Phase 1 Inclusion Criteria:
- Able and willing to provide written informed consent
- Body weight ≥ 48 kg (105.6 lbs) and body mass index (BMI) ≥ 18.5 and ≤ 30 kg/m2
- Must be in good health and without clinically significant abnormalities by review of medical and surgical history, physical examination, vital signs measurement, and 12-lead ECG
- No clinically-significant laboratory abnormalities
- Willing and able to use highly-effective forms of contraception for at least 30 days after the end of study visit.
- Phase 1 Exclusion Criteria:
- Ongoing medical condition requiring systemic therapy.
- Ongoing infection
- mRNA or live vaccine during the past 60 days
- History of significant hypersensitivity, intolerance, or allergy to any drug/medication
- Participation in another clinical trial with an investigational agent within 30 days prior to Check-in or 5 half-lives (if known) of the investigational drug's PK, PD, or biological activity (if known), whichever is longer
- Positive alcohol breath test or urine screen for drugs of abuse.
- Use or intent to use natural products or nutritional/dietary supplements (including St. John's wort), vitamins, minerals, and phytotherapeutic /herbal/plant-derived preparations within or received within 14 days or 5 half-lives prior to Check-in, whichever is longer.
- Poor peripheral venous access.
- Receipt of blood products within 2 months prior to Check-in.
- Donation of blood or blood products during the 4 weeks prior to Check-in.
- Participants who in the opinion of the Principal Investigator (or designee), should not participate in this study
Age in the registry: 18 years to 65 years · Sex: All · Accepts healthy volunteers
Sites (1)
Sites in registry order. Pick your city on the disease page to sort them by distance.
| Site | City | Country | Site status |
|---|---|---|---|
| CMAX Clinical Research Coordinator of this site? Confirm its status | Adelaide | Australia | Recruiting |
This page is information, not medical advice. Discuss any trial with your doctor.