Atelerix Life Sciences

About Us


Unmet Need: Every year, millions of US surgical patients experience opioid-induced respiratory depression (OIRD) severe enough to require prolonged mechanical ventilation and longer hospital stays.

  • Problem: Current drug for OIRD, Naloxone, restores breathing but is problematic, and therefore used infrequently, because it reverses pain relief
  • Solution: New drug, ATLX-0199 (sometimes referred to as Sudaxine), reverses OIRD while preserving pain relief
  • Market: Over $13 billion annually
  • Technology: Proprietary small molecule platform; strong animal data; NIH-backed
  • Team: Experienced, industry-known, motivated, committed
  • Stage: Late pre-clinical

Opioid Side Effects

While useful in controlling pain, opioids have significant limitations:

Opioid-induced side effects have created unmet medical needs of crisis proportion, affecting millions of people annually.

A Better Solution

ATLX-0199, an active thiol-based compound from our platform of novel drugs, reverses Opioid-Induced Respiratory Depression (OIRD) while preserving pain relief:

ATLX-0199 targets novel molecular pathways, modulating signals downstream from activated opioid receptors. Concept validated by extensive NIH-supported research/data. Atelerix is developing ATLX-0199 and other compounds in its pipeline to treat the range of opioid-induced side effects; first focus is OIRD in the hospital surgical/ICU setting.

Opioid-Induced Respiratory Depression (OIRD)


The opioid crisis has a new and even uglier dimension – weaponization – and the focused funding interest of the NIH and the United States military.

“These public health threat agents are highly toxic chemicals that could cause mass casualties after either deliberate terrorism-related release or inadvertently.”

– National Institutes of Health

Russian special forces soldiers are seen carrying out hostages killed by a highly potent weaponized opioid in a Moscow theatre after a three-day stand off with Chechen terrorists.

(Credit: Anton Denisov/AFP/Getty Images)

Addiction / Tolerance / Overdose / Withdrawal

Overdose deaths from synthetic opioids (primarily fentanyl) have become a massive crisis, approaching 40,000 in 2019, and growing since COVID-19. Atelerix’s novel approach to opioid-induced unmet medical needs could diminish the number of opioid-related deaths.

Current Standard has Significant Disadvantages

Naloxone restores breathing but also:

ATLX-0199 Target Market

Opportunity for OIRD in surgical/ICU setting is $13 billion annually


USE 1: 20-40% of ICU patients require mechanical ventilation. To estimate the number of patients, we use 40% (2 million) for the “high” estimate, 30% (1.5 million) for “medium,” and 20% (1 million) for “low.” 40% of time in ICU is weaning from ventilator. Patients requiring mechanical ventilation spend a mean duration of 5.6 days in the ICU. We expect ATLX-0199 to reduce time in ICU by 2.24 days (40% of 5.6 day mean stay). Mechanical ventilation beyond day 3 in the ICU costs an average of $3,968 per day. Reducing ICU stays by 2.24 days could yield a reduction in systemic costs by over $13 billion ($3,968 x 2.24 days x 1.5 million patients.)

USE 2:  Approximately 88% (35 million+) of surgical patients receive opioids to control their pain.  46% (16 million+) of patients receiving opioids experience some Opioid-Induced Respiratory Depression. 5.19% (2.076 million) of patients experience OIRD of a severity sufficient to be designated a respiratory-related Opioid-Related Adverse Drug Event. ORADEs result in average increased hospitalization costs of $8,225 per patient. $8,225 multiplied by 2.076 million patients expected to experience an ORADE yields a total systemic burden of over $17 billion a year.

Grant Funding to Date

Over $16 million in prior non-dilutive funding to Atelerix Scientific Co-founders. $1.84 million SBIR grant awarded to Atelerix in 2022.

                                       Company has exclusive option on resulting intellectual property