CRNX Crinetics Pharmaceuticals Inc

Exhibit 99.1

Crinetics Announces Positive Initial Findings at ENDO 2024 for Atumelnant in Two Ongoing, Open-Label Studies for the Treatment of Congenital Adrenal Hyperplasia (CAH) and ACTH-Dependent Cushing’s Syndrome (ADCS)

100% of Participants (n=6) With CAH Maintained Androstenedione (A4) Below the Upper Limit of Normal at all Time Points on Atumelnant (80 mg)

CAH Participants Achieved More Than a 90% Reduction of A4 and 97% Reduction of 17-OHP on Atumelnant (80 mg), Beginning at Two Weeks and Sustained Through 12 Weeks

In the ADCS Trial, Atumelnant (80 mg) Normalized 24-hr Urinary Free Cortisol Levels for 100% of Participants (n=5) During Treatment

Management to Host Investor Conference Call Today at 4:30 PM ET and Onsite KOL Event at ENDO for Investors and Analysts at 6:00 PM ET

SAN DIEGO – June 3, 2024 – Crinetics Pharmaceuticals, Inc. (Nasdaq: CRNX) today announced initial findings from the development program of its second clinical product candidate, atumelnant* (CRN04894), a novel, once-daily oral adrenocorticotropic hormone (ACTH) receptor antagonist. The results, presented at the Endocrine Society’s annual meeting (ENDO2024), include initial data from the Phase 1b/2a, open-label study in participants with ACTH-dependent Cushing’s syndrome (ADCS) conducted in collaboration with the National Institutes of Health, and the Phase 2 open-label TouCAHn study in participants with congenital adrenal hyperplasia (CAH).

“Despite knowing about ACTH’s pivotal role in the endocrine stress response for nearly a century, no other ACTH antagonist drug candidates have been developed and studied in humans. Achieving physiologically normal hormone levels is critical for people living with CAH and ADCS, and today’s data show an impressive ability of atumelnant to reduce key disease drivers like A4 or cortisol to healthy levels,” said Scott Struthers, Ph.D., founder and chief executive officer of Crinetics. “These data also reinforce the strength of our in-house discovery engine and our ability to purposefully design medicines with groundbreaking mechanisms of action like atumelnant, the second novel drug candidate in our pipeline to have demonstrated remarkable results in clinical studies.”

Once Daily Oral Atumelnant (CRN04894) Induces Rapid and Profound Reductions of Androstenedione and 17-hydroxyprogesterone in Participants with Classical Congenital Adrenal Hyperplasia: Initial Results from A 12-week, Phase 2, Open-label Study (Abstract #MON-677):

In this initial analysis of this Phase 2 trial (TouCAHn), people with classic CAH were treated with once-daily, oral atumelnant and assessed for safety and efficacy. The trial continues to enroll three treatment cohorts: 80 mg once daily (n=9), 40 mg once daily (n=9) and 120 mg once daily (n=6).

Data presented at ENDO (n=10) reflect a cutoff date of May 21, 2024. Available data for 80 mg includes: n=4 at 12 weeks of treatment, with two additional participant’s data up to six weeks of treatment. For 40 mg, available data was with n=4 for two weeks of treatment. The TouCAHn study is ongoing, with topline results from the complete study expected in the second half of 2024.

Baseline biomarker levels for subjects in Cohort 1 were:

Initial results from Cohort 1:

Two-week data from the first four patients in Cohort 2 (40 mg atumelnant once daily) are also presented at ENDO2024.

No severe or serious treatment emergent adverse events have been observed to date, and no participants have discontinued from the trial. All AEs to-date have been mild to moderate and transient. There were no significant changes in safety labs or electrocardiograms. The most common treatment-emergent adverse events included: fatigue (3), headache (2) and upper respiratory tract infection (2).

“In CAH, androgen production can go into overdrive and have a profound effect on people living with this difficult-to-manage disease,” said Dr. Umasuthan Srirangalingam, consultant physician in endocrinology and diabetes at University College London Hospitals NHS Foundation Trust and TouCAHn investigator. “Atumelnant’s unique ability to inhibit ACTH directly at its receptor sets it apart from how we’ve historically pursued controlling androgen production through supra-physiological doses of glucocorticoids. It’s compelling to see initial Phase 2 results showing atumelnant dramatically reduced A4 and 17-OHP.”

Atumelnant (CRN04894) Induces Rapid and Sustained Reductions in Serum and Urine Cortisol in Patients with ACTH-dependent Cushing Syndrome During a Phase 1b/2a, Single Center, 10-day, Inpatient, Open-label Study (Abstract #MON-680):

Initial data from five ACTH-dependent Cushing’s syndrome trial participants who completed 10 days of once-daily oral atumelnant treatment (80 mg) in this dose-finding study shows rapid and profound impact on cortisol:

“This initial data showed atumelnant’s ability to rapidly reduce — and normalize — cortisol levels in people with ADCS,” said Dr. Lynnette Nieman, senior investigator, National Institutes of Health, and principal investigator of the Phase 1b/2a atumelnant trial. “As a clinician and investigator, I’ve witnessed the unmet needs in this patient population for 40 years. I am hopeful for further promising results as we continue our research on this drug candidate”

Atumelnant was generally well tolerated. Adverse events were mild to moderate, with the most frequently reported being headache, nausea and decreased appetite, consistent with symptoms of adrenal insufficiency. Predefined biochemical adrenal insufficiency (morning serum cortisol <5 mcg/dL) was observed in all participants treated to date. This effect was anticipated based on the known pharmacology of atumelnant, and related symptoms reversed with oral hydrocortisone replacement treatment. Two participants with pre-existing steatosis had small increases in ALT (<1.5x ULN). There have been no early discontinuations from the study to date.

Conference Call and Webcast

Crinetics will host an investor conference call on June 3, 2024, at 4:30 pm Eastern Time to discuss the initial findings from these two studies.

Dial-in Details:

Domestic: 1-800-717-1738

International: 1-646-307-1865

Conference ID: 81415

Participants can use Guest dial-in #s above and be answered by an operator OR click the Call me^™ link for instant telephone access to the event.

Call me^™: https://emportal.ink/3K5zWA3

Webcast: https://viavid.webcasts.com/starthere.jsp?ei=1673017&tp_key=a62184f9a6

Following the live event, a replay will be available on the Investors section of the Company’s website.

ABOUT ATUMELNANT (CRN04894)

Atumelnant, our second investigational compound, is the first once-daily, oral adrenocorticotropic hormone (ACTH) receptor antagonist that acts selectively at the melanocortin type 2 receptor (MC2R) on the adrenal glands. Diseases associated with excess ACTH can have significant impact on physical and mental health. Atumelnant has exhibited strong binding affinity for MC2R in preclinical models and has demonstrated suppression of adrenally derived glucocorticoids and androgens that are under the control of ACTH. Data in a Phase 1 healthy volunteer study demonstrated pharmacologic proof-of-concept for atumelnant, with reductions in both serum cortisol levels and 24-hour urine free cortisol excretion in the presence of sustained, disease-like ACTH concentrations. Atumelnant is currently in Phase 2 studies for Congenital Adrenal Hyperplasia and ACTH-dependent Cushing’s syndrome.

ABOUT THE TouCAHn STUDY

TouCAHn is an open-label, global, Phase 2 study designed to evaluate the efficacy, safety, and pharmacokinetics of atumelnant when administered up to 12 weeks in participants with CAH caused by 21-hydroxylase deficiency. The study is ongoing and aims to enroll up to 30 patients, aged 18-75, with classic CAH and on a stable dose of glucocorticoid replacement for at least 6 months. Key endpoints include early morning androstenedione (A4), 17-hydroxyprogesterone (17-OHP) levels and safety.

For more information about the study, please visit clinicaltrials.gov (NCT05907291).

ABOUT THE PHASE 1B/2A STUDY IN ACTH-DEPENDENT CUSHING’S SYNDROME

The Phase 1b/2a, is the first-in-disease, open-label, multiple-ascending dose exploratory study to evaluate safety, tolerability, pharmacokinetics, and pharmacodynamic biomarker responses associated with atumelnant over a 10-day treatment period in participants with ACTH-dependent Cushing’s syndrome. The study is being conducted in collaboration with the National Institutes of Health and led by Dr. Lynnette Nieman. Participants will receive oral atumelnant once daily for 10 days, followed by monitoring during four wash-out days. The study is ongoing and aims to enroll 18 people.

The content in this release is the sole responsibility of Crinetics Pharmaceuticals, Inc. and does not necessarily represent the official views or imply endorsement of the National Institutes of Health. For more information about the study, please visit clinicaltrials.gov (NCT05804669).

ABOUT CRINETICS PHARMACEUTICALS

Crinetics Pharmaceuticals is a clinical stage pharmaceutical company focused on the discovery, development, and commercialization of novel therapeutics for endocrine diseases and endocrine-related tumors. Paltusotine, an investigational, first-in-class, oral somatostatin receptor type 2 (SST2) agonist, is in Phase 3 clinical development for acromegaly and in Phase 2 clinical development for carcinoid syndrome associated with neuroendocrine tumors. Crinetics is also developing atumelnant (CRN04894), an investigational, first-in-class, oral ACTH antagonist, that is currently completing Phase 2 clinical studies for the treatment of congenital adrenal hyperplasia and ACTH-dependent Cushing’s syndrome. All of the company’s drug candidates are orally delivered, small molecule new chemical entities resulting from in-house drug discovery efforts, including additional discovery programs addressing a variety of endocrine conditions such as hyperparathyroidism, polycystic kidney disease, Graves’ disease, thyroid eye disease, diabetes and obesity.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical facts contained in this press release are forward-looking statements, including statements regarding the plans and timelines for the clinical development of atumelnant, including the therapeutic potential and clinical benefits or safety profile thereof; the expected timing of additional data and topline results from studies of atumelnant in CAH and ADCS; the target enrollment in studies of atumelnant; and the potential outcomes of the Phase 2 participants with CAH and the Phase 1b/2a trial for participants with ADCS. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplates,” “believes,” “estimates,” “predicts,” “potential,” “upcoming” or “continue” or the negative of these terms or other similar expressions. These forward-looking statements speak only as of the date of this press release and are subject to a number of risks, uncertainties and assumptions, including, without limitation, initial or topline data that we report may change following completion or a more comprehensive review of the data related to the clinical studies and such data may not accurately reflect the complete results of a clinical study, and the FDA and other regulatory authorities may not agree with our interpretation of such results; unexpected adverse side effects or inadequate efficacy of the Company’s product candidates that may limit their development, regulatory approval and/or commercialization; clinical studies and preclinical studies may not proceed at the time or in the manner expected, or at all; the timing and outcome of research, development and regulatory review is uncertain, and Crinetics’ drug candidates may not advance in development or be approved for marketing; and the other risks and uncertainties described in the Company’s periodic filings with the Securities and Exchange Commission (SEC). The events and circumstances reflected in the company’s forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Additional information on risks facing Crinetics can be found under the heading “Risk Factors” in Crinetics’ periodic filings with the SEC, including its annual report on Form 10-K for the year ended December 31, 2023 and its Quarterly report on Form 10-Q for the quarter ended March 31, 2024. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. Except as required by applicable law, Crinetics does not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

Contact:

Corey Davis

LifeSci Advisors

cdavis@lifesciadvisors.com

(212) 915-2577

Media:

Natalie Badillo

Head of Corporate Communications

nbadillo@crinetics.com

(858) 345-6075

Exhibit 99.2

Crinetics Presents New Data at ENDO 2024 that Increases Body of Evidence Positioning Once-Daily, Oral Paltusotine as Potential First-Choice Treatment Option for Acromegaly

First Scientific Presentation of PATHFNDR-2 Acromegaly Safety and Efficacy Data Following Positive

Topline Announcement, Showing Rapid and Sustained IGF-1 Responses in People Treated with Paltusotine

New PATHFNDR-1 Patient-Reported Outcomes Analysis Showed Paltusotine Lessened Day-to-Day Breakthrough Symptom Exacerbations versus Prior Treatment with Standard of Care Injections, as Assessed by Acromegaly Symptom Diary

Long-Term Data from Open-Label ACROBAT Advance Extension Study Demonstrated Durable Safety, IGF-1, and Symptom Control at Up to 42-Months of Paltusotine Treatment

Crinetics Expects to Complete NDA Submission for Paltusotine in 2H 2024

SAN DIEGO – June 3, 2024 – Crinetics Pharmaceuticals, Inc. (Nasdaq: CRNX) today presented findings from its clinical development program evaluating oral, once-daily investigational paltusotine in acromegaly. Data presented included results of the Phase 3 PATHFNDR-2 trial, a new analysis of patient reported outcome (PRO) data from the Phase 3 PATHFNDR-1 trial, and interim long-term efficacy and safety results at 42 months from the open-label ACROBAT Advance extension study. The data were presented today at the Endocrine Society’s Annual Meeting (ENDO2024), with findings from PATHFNDR-1 published as a manuscript in The Journal of Clinical Endocrinology & Metabolism.

“The depth and breadth of our clinical development program for once-daily, oral paltusotine under investigation for the treatment of acromegaly is on display at ENDO 2024, demonstrating its rapid, durable effect on both biochemical and symptom control in these studies,” said Scott Struthers, Ph.D., founder and chief executive officer of Crinetics. “Notably, based on patient reported outcome data captured daily by the Acromegaly Symptom Diary, a new analysis from the PATHFNDR-1 trial showed that paltusotine was able to drive significant and important differences in the frequency of acromegaly breakthrough symptom exacerbations compared to prior treatment with standard of care medications. We look forward to submitting a New Drug Application in the second half of this year and potentially changing the acromegaly treatment paradigm.”

Efficacy and Safety of Once-daily Oral Paltusotine in Medically Untreated Patients with Acromegaly: Results from the Phase 3, Randomized, Placebo-controlled PATHFNDR-2 Study (Abstract #MON-694):

PATHFNDR-2 was a randomized, double-blind, placebo-controlled trial with a 24-week treatment period, followed by an optional open-label extension study evaluating paltusotine in 111 participants with active acromegaly (IGF-1 > 1.1 ULN) who were not pharmacologically treated. Results demonstrated:

Use of the Acromegaly Symptom Diary (ASD) in a Phase 3, Placebo-Controlled Study of Once-Daily, Oral Paltusotine in Patients with Acromegaly Switched from Injected Octreotide or Lanreotide (Abstract #MON-156):

PATHFNDR-1 was a randomized, double-blind, placebo-controlled trial with a 36-week treatment period, followed by an optional open-label extension study evaluating paltusotine in participants with acromegaly switching from standard-of-care injected depot somatostatin receptor ligands (SRL). The study enrolled participants with acromegaly who were biochemically controlled on octreotide or lanreotide depot monotherapy.

The study met the primary endpoint and all three secondary endpoints, as previously announced. Findings clearly demonstrated that once-daily, oral paltusotine maintained biochemical and symptom control in patients with acromegaly switched from SRL. Paltusotine was well tolerated with no severe or serious TEAEs.

In a new analysis of PATHFNDR-1 data presented at ENDO2024, Acromegaly Symptom Diary (ASD) scores for patients at screening (and on injected SRL, the current standard of care) were compared to scores while on paltusotine (n=25). The ASD is a novel PRO tool developed in accordance with U.S. Food and Drug Administration (FDA) guidance to assess disease-related symptom burden. Paltusotine was associated with statistically significant reductions in the frequency of breakthrough acromegaly symptom exacerbations for total ASD scores, most bothersome symptom, headache, joint pain, sweating, fatigue, numbness/tingling, sleep difficulty and memory difficulty. Numerical differences favoring paltusotine were seen for the remaining symptoms of leg weakness and swelling.

“Patients with acromegaly often suffer from unpredictable breakthrough symptoms, despite receiving regular painful depot injections of the available first line medical treatments,” said Alan Krasner, M.D., chief endocrinologist at Crinetics. “The data from PATHFNDR-1 suggest that once daily oral paltusotine may be associated with less day-to-day symptom variability compared to the injections. Reducing the burden of the disease, as well as the burden of its treatment, are key goals of the paltusotine development program.”

Long-Term Safety and Efficacy of Once-Daily Oral Paltusotine in the Treatment of Patients with Acromegaly: Update from ACROBAT Study (Abstract #MON-695):

ACROBAT Advance is an ongoing, six-year, single-arm, open-label extension study of paltusotine in the treatment of patients with acromegaly. This analysis includes interim results as the first enrolled patients approach four years of treatment. Enrolled patients had completed either the ACROBAT Edge or Evolve Phase 2 parent studies.

Results demonstrated:

Preparation of regulatory filings for paltusotine based on PATHFNDR-1 and PATHFNDR-2 data are currently underway, with a New Drug Application submission to the FDA planned in the second half of 2024.

ABOUT PALTUSOTINE

Paltusotine is the first once-daily, oral selectively-targeted somatostatin receptor type 2 (SST2) agonist, and has completed its randomized, controlled Phase 3 studies for acromegaly and a Phase 2 study for carcinoid syndrome. It was designed by the Crinetics’ discovery team to provide an efficacious and convenient once-daily option for people living with acromegaly and carcinoid syndrome. In Phase 2 studies and the recently completed PATHFNDR-1 and PATHFNDR-2 Phase 3 studies, paltusotine maintained IGF-1 levels in patients with acromegaly who were switched from monthly injectable medications to paltusotine (PATHFNDR-1) and decreased IGF-1 levels in medically untreated patients (PATHFNDR-2). IGF-1 is the primary biomarker endocrinologists use to manage acromegaly patients. Results from the Phase 2 study in carcinoid syndrome further support paltusotine’s potential use beyond acromegaly.

ABOUT ACROMEGALY

Acromegaly is a serious rare disease generally caused by a pituitary adenoma, a benign tumor in the pituitary that secretes growth hormone (GH). Excess GH secretion causes excess secretion of IGF-1 from the liver. Prolonged exposure to increased levels of IGF-1 and GH leads to progressive and serious systemic complications, often resulting in bone, joint, cardiovascular, metabolic, cerebrovascular, or respiratory disease. Acromegaly symptoms include headache, joint aches, fatigue, sleep apnea, severe sweating, hyperhidrosis/oily skin, bone and cartilage overgrowth, abnormal growth of hands and feet, enlargement of heart, liver, and other organs and alteration of facial features. Uncontrolled acromegaly results in increased mortality and has a debilitating impact on daily functioning and quality of life.

Surgical removal of pituitary adenomas, if possible, is the preferred initial treatment for most acromegaly patients. Pharmacotherapy is used for patients who are not candidates for surgery, or when surgery is unsuccessful in achieving treatment goals. Approximately 50% of patients with acromegaly prove to be candidates for pharmacotherapy. Injectable depot somatostatin analogues are the most common initial pharmacologic treatment; however, these drugs require monthly depot injections with large gauge needles that are commonly associated with pain, injection site reactions, and an increased burden on the lives of patients.

ABOUT CRINETICS PHARMACEUTICALS

Crinetics Pharmaceuticals is a clinical stage pharmaceutical company focused on the discovery, development, and commercialization of novel therapeutics for endocrine diseases and endocrine-related tumors. Paltusotine, an investigational, first-in-class, oral somatostatin receptor type 2 (SST2) agonist, is in Phase 3 clinical development for acromegaly and in Phase 2 clinical development for carcinoid syndrome associated with neuroendocrine tumors. Crinetics is also developing atumelnant (CRN04894), an investigational, first-in-class, oral ACTH antagonist, that is currently completing Phase 2 clinical studies for the treatment of congenital adrenal hyperplasia and ACTH-dependent Cushing’s syndrome. All of the company’s drug candidates are orally delivered, small molecule new chemical entities resulting from in-house drug discovery efforts, including additional discovery programs addressing a variety of endocrine conditions such as hyperparathyroidism, polycystic kidney disease, Graves’ disease, thyroid eye disease, diabetes and obesity.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. All statements other than statements of historical facts contained in this press release are forward-looking statements, including statements regarding the plans and timelines for the clinical development and commercialization of paltusotine, including the therapeutic potential and clinical benefits or safety profile thereof; the expected publication of findings from PATHFNDR-1; and the expected timing of an NDA submission for paltusotine for the treatment or maintenance of treatment of acromegaly in the United States. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “should,” “expect,” “plan,” “anticipate,” “could,” “intend,” “target,” “project,” “contemplates,” “believes,” “estimates,” “predicts,” “potential,” “upcoming” or “continue” or the negative of these terms or other similar expressions. These forward-looking statements speak only as of the date of this press release and are subject to a number of risks, uncertainties and assumptions, including, without limitation, initial or topline data that we report may change following completion or a more comprehensive review of the data related to the clinical studies and such data may not accurately reflect the complete results of a clinical study, and the FDA and other regulatory authorities may not agree with our interpretation of such results; unexpected adverse side effects or inadequate efficacy of the Company’s product candidates that may limit their development, regulatory approval and/or commercialization; clinical studies and preclinical studies may not proceed at the time or in the manner expected, or at all; the timing and outcome of research, development and regulatory review is uncertain, and Crinetics’ drug candidates may not advance in development or be approved for marketing; and the other risks and uncertainties described in the Company’s periodic filings with the Securities and Exchange Commission (SEC). The events and circumstances reflected in the company’s forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Additional information on risks facing Crinetics can be found under the heading “Risk Factors” in Crinetics’ periodic filings with the SEC, including its annual report on Form 10-K for the year ended December 31, 2023, and its Quarterly report on Form 10-Q for the quarter ended March 31, 2024. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date hereof. Except as required by applicable law, Crinetics does not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

Contact:

Corey Davis

LifeSci Advisors

cdavis@lifesciadvisors .com

(212) 915-2577

Media:

Natalie Badillo

Head of Corporate Communications

nbadillo@crinetics.com

(858) 345-6075