Biotech Tracker
MilestoneMay 7, 2026173 days ago

FDA feedback sets new open-label vatiquinone registration study for Q3 2026

FDA feedback sets new open-label vatiquinone registration study for Q3 2026, on May 7, 2026. A company milestone for PTC (vatiquinone for Friedreich's ataxia): a step in the program rather than a decision or a data readout.

Plain-English summary generated from this entry’s own fields (drug, condition, stage, date). Glossary

DetailsCompany milestone
Company
PTC Therapeutics, Inc. PTCT
Drug
vatiquinone
For
Friedreich's ataxia
Stage
Regulatory (NDA resubmission path)
When
May 7, 2026
Source note
PTC disclosed the outcome of an April 2026 Type C meeting with FDA on the path to an NDA resubmission for vatiquinone in Friedreich's ataxia: the company will run a new open-label study with a matched natural history control, starting Q3 2026, with mFARS change at 24 months as the primary endpoint.
Checked
Checked by a person when it was added
Check the sourcesdon’t take our word for it
PTC Therapeutics, Inc.
2 upcoming · 4 past catalysts
More from PTCT
MilestonePTCTPTCH2 2026

FDA engagement on votoplam PIVOT-HD 24-month results in Huntington's disease, expected in the second half of 2026 (no exact date yet). A company milestone for PTC (votoplam (PTC518) for Huntington's disease): a step in the program rather than a decision or a data readout.

More details
Entry
FDA engagement on votoplam PIVOT-HD 24-month results in Huntington's disease · Company milestone
Drug
votoplam (PTC518)
For
Huntington's disease
Stage
Phase 3 · the last stage before a drug can be approved
When
H2 2026 · the company gave a window, not a day
Source note
Company plans to engage with FDA in 2H 2026 to discuss PIVOT-HD 24-month results; outcome frames a potential accelerated path for the Novartis-partnered program.
Checked
Checked by a person when it was added
Verify it

Plain-English summary generated from this entry’s own fields (drug, condition, stage, date). Glossary · Open this catalyst’s page

MilestonePTCTPTC2027

PTC303 (MSH3 splicing) clinical entry, expected during 2027 (no exact date yet). A company milestone for PTC (PTC303 for somatic expansion disorders (Huntington's disease, myotonic dystrophy)): a step in the program rather than a decision or a data readout.

More details
Entry
PTC303 (MSH3 splicing) clinical entry · Company milestone
Drug
PTC303
For
somatic expansion disorders (Huntington's disease, myotonic dystrophy)
Stage
Phase 1 · an early safety study in a small group of people
When
2027 · the company gave a window, not a day
Source note
Company plans to enter the clinic in 2027 (year-level guidance only).
Checked
Checked by a person when it was added
Verify it

Plain-English summary generated from this entry’s own fields (drug, condition, stage, date). Glossary · Open this catalyst’s page