Karuna's KarXT: Limited Distinction In Schizophrenia, Yet Warrants Monitoring

  • KarXT is a novel antipsychotic medication being developed by Karuna Therapeutics, focusing on M1 and M4 muscarinic receptors.

  • It has the potential to address both positive and negative symptoms of schizophrenia with a potentially more favorable side effect profile than existing treatments.

  • The Phase 3 EMERGENT-3 trial showed statistically significant and clinically meaningful improvements, but high TEAE and discontinuation rates warrant further investigation.

  • Karuna Therapeutics plans to submit a U.S. marketing application for KarXT in mid-2023, aiming for a market launch in the second half of 2024.

  • Despite promising results, investors should be cautious as more comprehensive data and additional research are required to validate KarXT’s safety, tolerability, and long-term effectiveness. Karuna is a “Hold”.

  • The pricing for KarXT is currently unknown, but existing antipsychotic medications can [range] from $340 to $1,400 per month, depending on factors like the specific drug and dosage. For our projection, let’s assume a conservative average monthly cost of $500 for KarXT.

Based on these assumptions, the annual revenue from 280,000 patients in the U.S. market would be $1.68 billion. This estimate only takes into account the U.S. market and a 10% market share. The potential revenue could be higher if KarXT gains a larger market share, has a higher price, or expands into other global markets.

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Its somehow definate that any medicine of schizophrenia loose its effects after some months. There for every psychiatrist change the medicine and doses after four to five appointments. I don’t think KarXt is different than it.

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It depends on the person. In my case, I have been taking abilify for 8 years, it never stopped working.
But if there are drugs with new mechanisms, I think it will be very beneficial in the long term.

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Ofcourse you can take a medicine for long time but doctor add to it some suppliment medicine above it and may change it.

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Every additional tool is a toolkit is better than no additional tools. Only time will show whether it is handier than other tools.

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