Skip to content
A Black woman regulatory affairs writer reviewing and annotating a document on a clipboard, dark moody studio with reference binders and a laptop showing a document draft visible

Documents that
pass, first time.

Creating, analyzing, proofreading, and writing the paperwork regulatory submissions run on.

What we do

Four disciplines, one document.

Every submission passes through the same four hands before it reaches your regulatory lead for sign-off.

Document creation

Dossiers, forms, and submissions, built from your data.

Document analysis

Checked against the regulator's own requirements before it's submitted.

Proofreading

Every claim, number, and reference, checked line by line.

Scientific writing

Findings written the way a reviewer expects to read them.

A person in a suit carrying a thick stack of tied document folders
A financial statement marked up with red-pen circles and checkmarks reviewing the figures
A scientist in a lab coat and gloves writing notes beside a microscope, with sample vials nearby

Regulatory forms & dossiers

  • Registration submissions
  • Renewals & variations
  • Tender documentation
  • Compliance certificates

Document analysis & proofreading

  • Gap analysis against requirements
  • Query response drafting
  • Version & completeness checks
  • Regulator correspondence

Scientific writing

  • Clinical & technical summaries
  • Evidence & reference management
  • Plain-language patient sections
  • Reviewer-ready formatting
Why Karthasis

Not a generic compliance vendor.

Scientists write the science

A team of scientists working alongside the writers, not a generalist guessing.

Not a copywriter paraphrasing your data sheet.

Checked against the real requirement

Every document analyzed against that regulator's own checklist, not a generic template.

Not a one-size-fits-all compliance pack.

Privacy first

Your data and unpublished findings are never shared — not with other clients, not with anyone.

Not your dossier, visible across every account they run.

Your sign-off, always

Every document reaches your regulatory lead for approval before it's submitted.

Not a document that ships without your review.

Everything in-house

Creation, analysis, proofreading, and scientific writing — one team, one place to ask.

Not a different vendor for every stage of a submission.

Tell us what you need submitted.

We reply within one business day.