New pill could tame rare hormone disorder

NCT ID NCT05907291

First seen Jun 26, 2026 · Last updated Jun 26, 2026

Summary

This study tested a new oral drug called atumelnant in 38 adults with classic congenital adrenal hyperplasia, a genetic condition causing hormone imbalances. The drug works by blocking a hormone receptor to lower excess adrenal hormones. Researchers measured safety, side effects, and changes in hormone levels over 12 weeks.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

atumelnant (CRN04894), an oral drug that blocks a hormone receptor to reduce excess adrenal hormones

What this could lead to

If successful, this could lead to a new oral treatment option for congenital adrenal hyperplasia, potentially reducing the need for high-dose steroids.

What could go wrong

This is an early Phase 2 trial with only 38 participants, so results may not apply to everyone. The drug may cause side effects or fail to improve outcomes significantly.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

classic congenital adrenal hyperplasia classic congenital adrenal hyperplasia due to 21-hydroxylase deficiency congenital adrenal hyperplasia

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Crinetics Study Site

    Pasadena, California, 91105, United States

  • Crinetics Study Site

    Ann Arbor, Michigan, 48109, United States

  • Crinetics Study Site

    Minneapolis, Minnesota, 55454, United States

  • Crinetics Study Site

    St Louis, Missouri, 63110, United States

  • Crinetics Study Site

    Morehead City, North Carolina, 28557, United States

  • Crinetics Study Site

    Cleveland, Ohio, 44195, United States

  • Crinetics Study Site

    Philadelphia, Pennsylvania, 19104, United States

  • Crinetics Study Site

    East Providence, Rhode Island, 02915, United States

  • Crinetics Study Site

    Córdoba, Córdoba Province, 5000, Argentina

  • Crinetics Study Site

    Buenos Aires, C1180, Argentina

  • Crinetics Study Site

    Curitiba, Paraná, 80030-110, Brazil

  • Crinetics Study Site

    Rio de Janeiro, Rio de Janeiro, 20231-092, Brazil

  • Crinetics Study Site

    Rio de Janeiro, Rio de Janeiro, 20551-030, Brazil

  • Crinetics Study Site

    Porto Alegre, Rio Grande do Sul, 90410-000, Brazil

  • Crinetics Study Site

    Botucatu, São Paulo, 18618-686, Brazil

  • Crinetics Study Site

    Ribeirão Preto, São Paulo, 14051-140, Brazil

  • Crinetics Study Site

    São Paulo, São Paulo, 04024-002, Brazil

  • Crinetics Study Site

    São Paulo, 05403-000, Brazil

  • Crinetics Study Site

    Munich, Bavaria, 80336, Germany

  • Crinetics Study Site

    Bangalore, Karnataka, 560054, India

  • Crinetics Study Site

    Vellore, Tamil Nadu, 632004, India

  • Crinetics Study Site

    Naples, 80131, Italy

  • Crinetics Study Site

    Roma, 00161, Italy

  • Crinetics Study Site

    Rozzano, 20089, Italy

  • Crinetics Study Site

    Sheffield, South Yorkshire, S10 2RX, United Kingdom

  • Crinetics Study Site

    Coventry, West Midlands, CV22DX, United Kingdom

  • Crinetics Study Site

    London, NW1 2PG, United Kingdom