Changing healthcare is hard. Communicating it shouldn't be.

I'm Crystal Olivas-Rasmussen, PhD, a biochemist and medical writer. I help pharma and biotech teams, and the healthcare creatives who work with them, turn complex science into clear, accurate, review-ready communication.

For med comms & pharma teams

Congress and publication materials

One study, told three ways: a congress abstract, a slide deck, and a plain language summary built from the same clinical data. Plus a poster and a conference talk from my own research.

Abstract

Sildenafil congress abstract

Structured results within a strict word limit, with every number traceable to the data.

Sample available on request

Slide deck

Sildenafil slide deck

Clinical data organized into a clear story for an HCP audience.

Sample available on request

Plain language summary

Sildenafil plain language summary

The same study rewritten for patients and the public, at an everyday reading level.

Sample available on request

Scientific posterSRBR 2026
Thumbnail of the Nocturnin mitochondrial fragmentation poster

Nocturnin-mediated mitochondrial fragmentation

Original research designed for a busy poster hall: one clear message per panel.

View the poster →
Conference talkGRS 2025

Elucidating the enzymatic mechanism of Nocturnin and development of pharmacological inhibitors

An invited oral presentation of mechanism and drug discovery data at a Gordon Research Seminar.

Gordon Research Seminar · July 2025

Slides available on request

For ad agencies & copywriters

MLR review and promotional accuracy

Persuasive copy still has to survive medical, legal, and regulatory review. These samples show how I connect each claim to its source and catch problems before reviewers do.

MLR claim reviewNew

Claim substantiation review of an Ozempic® HCP page

Six claims checked against the prescribing information and trial papers, with fair-balance and trademark flags.

Independent practice exercise · October 2026

Read the review →
Promotional copyNew

Annotated HCP web copy for a PKU medicine

Promotional claims pinned to their exact sources, plus the overreach a reviewer would catch.

Fictional product · illustrative data

See the annotated copy →
For biotech founders

Grants and investor materials

Early-stage teams need non-dilutive funding and clear scientific stories for investors. I write both, working directly from your data.

NIH SBIR Specific AimsNew

Oral chaperones to restore PAH activity in phenylketonuria

A one-page Specific Aims with a clear gap, testable hypothesis, and go/no-go milestones.

Fictional company · illustrative data

Read the Specific Aims →
Investor one-pagerNew

Resetting the body clock for people who work at night

A non-confidential summary that makes circadian biology clear to investors without a science background.

Fictional company · illustrative data

Read the one-pager →
Peer-reviewed & public writing

Published research and science writing

Peer-reviewed research spanning circadian biology and the phenylketonuria enzyme, plus science written for a general audience. Earlier papers are published under Crystal A. Khan.

First-author articleOpen access

Evolutionary divergence of Nocturnin led to redox regulation in mammalian orthologs

Biochemistry and Biophysics Reports · 2026

Read the article ↗
First-author article

Characterization of the enzymatic activity of the rhythmic human NADP(H) phosphatase, Nocturnin

Archives of Biochemistry and Biophysics · 2026

Read the article ↗
First-author article

The phenylketonuria-associated substitution R68S converts phenylalanine hydroxylase to a constitutively active enzyme but reduces its stability

Journal of Biological Chemistry · 2019 · as Crystal A. Khan

Read the article ↗
Co-author article

Thermal profiling reveals phenylalanine hydroxylase as an off-target of panobinostat

Nature Chemical Biology · 2016 · as Crystal A. Khan

Read the article ↗
Science article for the public

Fall forward, spring back: the outdated and dangerous tradition of Daylight Saving Time

The Petri Dish · Summer 2026

Read the article →
About

I hold a PhD in Biochemistry and Biophysics and spent 15 years in academic research at UT Southwestern Medical Center before founding Olivas-Rasmussen Medical Writing LLC. My work has appeared in Nature Chemical Biology and Archives of Biochemistry and Biophysics.

I check every claim against its source, verify every number, and deliver on time.

Rare diseaseInborn errors of metabolismCircadian biologyEnzyme biochemistryRedox biology
What I write
  • Congress abstracts, posters, and slide decks
  • Manuscripts and publication support
  • Plain language summaries
  • Scientific QC and reference checking for MLR review
  • Scientific partnership for healthcare copywriters
  • Grant writing, including NIH SBIR/STTR
  • Advisory board materials and meeting reports