Alltrna

Alltrna

tRNA-based therapies for stop codon readthrough

Overview

Alltrna focuses on developing tRNA therapeutics to treat diseases caused by nonsense mutations. It decodes transfer RNA biology to regulate protein synthesis and restore full-length proteins that were truncated by stop codons. How it works: engineered tRNAs read premature stop codons and insert the correct amino acids during protein synthesis, enabling cells to produce full-length proteins despite genetic mutations. Differentiation: Unlike many biotech approaches, Alltrna centers on manipulating tRNA to fix the protein production step at its source. It positions itself as the first company to exploit tRNA biology for therapeutics, aiming to address thousands of diseases sharing the same nonsense mutation across patients. Goal: Create tRNA-based treatments that cure or alleviate diseases caused by nonsense mutations by re-establishing normal protein production in affected cells.

Significant Headcount Growth

About Alltrna

Simplify's Rating
Why Alltrna is rated
B-
Rated B on Competitive Edge
Rated B on Growth Potential
Rated C on Differentiation

Industries

Biotechnology

Healthcare

Company Size

51-200

Company Stage

Series B

Total Funding

$159M

Headquarters

Cambridge, Massachusetts

Founded

2018

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Simplify's Take

What believers are saying

  • AP003 restores protein to 25% wild-type levels in MMA and PKU models.
  • $109M Series B funds clinic advancement for Stop Codon Disease.
  • Leadership strengthened by CSO David Hava and CMO Nerissa Kreher appointments.

What critics are saying

  • LNP delivery fails scale-up, halting AP003 progression in 12-24 months.
  • Engineered tRNA triggers immunogenicity, limiting dosing in 12-24 months.
  • Genentech and Moderna erode first-mover advantage in 18-36 months.

What makes Alltrna unique

  • Alltrna pioneers tRNA therapeutics targeting nonsense mutations across thousands of diseases.
  • Proprietary AI/ML platform designs engineered tRNAs from vast sequence space.
  • First tRNA therapy AP003 approved for Phase 1 trial in Australia.

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Funding

Total Funding

$159M

Above

Industry Average

Funded Over

2 Rounds

Series B funding is typically for startups that have proven their business model and need more funding to expand rapidly—often by entering new markets or adding more products. Investors are usually venture capital firms that specialize in later-stage investments.
Series B Funding Comparison
Above Average

Industry standards

$35M
$45M
Linktree
$65M
Substack
$100M
ClickUp
$109M
Alltrna

Benefits

Health Insurance

Dental Insurance

Vision Insurance

Parental Leave

Unlimited Paid Time Off

401(k) Retirement Plan

Disability Insurance

Life Insurance

Commuter Benefits

Professional Development Budget

Growth & Insights and Company News

Headcount

6 month growth

7%

1 year growth

11%

2 year growth

7%
PR Newswire
Mar 31st, 2026
Alltrna wins approval for first-ever tRNA therapeutic trial targeting Stop Codon Disease

Alltrna has received approval to initiate a Phase 1 clinical trial of AP003 in Australia, marking the first time a tRNA therapeutic has entered human trials. The study will evaluate safety and pharmacokinetics in healthy volunteers under Australia's Therapeutic Goods Administration Clinical Trial Notification scheme. AP003 is an engineered tRNA therapeutic designed to treat Stop Codon Disease caused by arginine-to-TGA premature termination codons. The therapy restores full-length protein production by inserting the correct amino acid at the mutation site. Preclinical studies have demonstrated the ability to restore protein expression whilst showing a safety profile consistent with established oligonucleotide and lipid nanoparticle therapies. Stop Codon Disease affects approximately 30 million people worldwide, representing 10% of all genetic disease patients. Data from this trial will inform future clinical development in patient populations.

PR Newswire
Sep 3rd, 2025
Alltrna Appoints David Hava, Ph.D., Chief Scientific Officer to Drive Strategic Pipeline Advancement of tRNA Medicines

CAMBRIDGE, Mass., Sept. 3, 2025 /PRNewswire/ - Alltrna, a Flagship Pioneering company unlocking transfer RNA (tRNA) biology and pioneering tRNA medicines to regulate the protein universe and resolve disease, today announced the appointment of David (Dave) Hava, Ph.D., as Chief Scientific Officer (CSO).

IT Juzi
Aug 26th, 2025
ALLYRNA Secures $10M Seed Funding

ALLYRNA, an innovative small molecule drug developer focusing on first-in-class cancer treatments, has secured nearly $10 million in seed funding. The round was co-led by Qiji Investment, Gaorong, and Jifeng, with strategic follow-on investment from U.S.-based Plaisance Capital.

PR Newswire
Jan 7th, 2025
Alltrna Appoints Dr. Nerissa Kreher As Chief Medical Officer To Advance Trna Medicines For Rare Diseases

CAMBRIDGE, Mass., Jan. 6, 2025 /PRNewswire/ -- Alltrna , a Flagship Pioneering company unlocking transfer RNA (tRNA) biology and pioneering tRNA therapeutics to regulate the protein universe and resolve disease, today announced the appointment of Dr. Nerissa Kreher as Chief Medical Officer (CMO). Dr. Kreher brings decades of expertise in rare disease drug development, including extensive experience in clinical development, medical affairs, and regulatory strategy across both early- and late-stage programs."We are thrilled to welcome Nerissa to the Alltrna leadership team as we advance our first tRNA development candidates to the clinic for liver Stop Codon Disease," said Michelle C. Werner, CEO of Alltrna

PR Newswire
Apr 22nd, 2024
Alltrna Announces Presentations At Asgct 27Th Annual Meeting And Tides Usa 2024

CAMBRIDGE, Mass., April 22, 2024 /PRNewswire/ -- Alltrna , a Flagship Pioneering company unlocking transfer RNA (tRNA) biology and pioneering tRNA therapeutics to regulate the protein universe and resolve disease, today announced a poster presentation at the American Society of Gene & Cell Therapy (ASGCT) 27th Annual Meeting taking place May 7-11 in Baltimore and a talk and two poster presentations at TIDES USA 2024 taking place May 14-17 digitally and in-person in Boston.Details of the presentations are as follows:ASGCT 27th Annual MeetingPoster Title: tRNA Therapeutics to Treat Stop Codon DiseaseSession Date & Time: May 9, 12:00 PM to 7:00 PM ETPresenter: Stephen Eichhorn, Ph.D., Head of Computational and Molecular Biology, AlltrnaPresentation Room: Exhibit HallSession Title: Oligonucleotide TherapeuticsAbstract Number: 1221TIDES USA 2024Talk Title: Manufacturing Strategies for Chemically Modified tRNAsSession Date & Time: May 17, 5:00 PM to 5:30 PM ETPresenter: William Kiesman, Ph.D., Chief Technology Officer, AlltrnaSession Title: Oligonucleotide Chemistry, Manufacturing, and ControlsPoster Title: Building 3-D homology models to support tRNA structure-based drug designPresenter: Audrey Hughes, Ph.D., Scientist II, Computational Chemistry, AlltrnaPoster Title: Quantification of Tissue Delivery for tRNA Therapeutics in LNP FormulationsPresenter: W. George Lai, Ph.D., Head of DMPK, Drug Safety and Clinical Pharmacology, AlltrnaPosters will be displayed onsite in the exhibit hall throughout TIDES USA 2024.About Stop Codon DiseaseStop Codon Disease encompasses thousands of rare and common diseases that stem from premature termination codons (PTC) also called nonsense mutations, where the code for an amino acid has been mutated into a premature "stop" codon. This results in a truncated or shortened protein product with no or altered biological activity that causes disease. Approximately 10% of all people with a genetic disease have Stop Codon Disease, representing approximately 30 million people worldwide. Alltrna is engineering tRNA medicines that can read these PTC mutations and deliver the desired amino acid, thereby restoring the production of the full-length protein.About AlltrnaAlltrna unlocks tRNA biology to treat disease. The company's platform incorporates AI/ML tools to develop and deliver diverse programmable molecules with broad therapeutic potential

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