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Trial · Interventional

CompletedPhase 2Results postedRegistry data

Study to Evaluate the Safety, PK, and Dose Response of Paltusotine in Subjects With Carcinoid Syndrome

This trial does not test a peptide that PepBank tracks.

  • Measures Lanreotide, does not give it. It appears in the eligibility rules.
  • Measures Octreotide, does not give it. It appears in the eligibility rules.

Overview

Status
Completed
Phase
Phase 2
Enrollment
36 participants (actual)
Sponsor
Crinetics Pharmaceuticals Inc. · Industry
Design
Randomized · Open label (no masking)
Countries
7 countries

United States, Argentina, Brazil, Canada, Mexico, Peru, Poland

Start
22 Apr 2022
Primary completion
7 Mar 2024
Completion
24 Feb 2026
First posted
5 May 2022
Last update posted
19 Mar 2026
Conditions
Carcinoid Syndrome · Carcinoid · Carcinoid Tumor · Carcinoid Tumor of Ileum · Carcinoid Tumor of Cecum · Carcinoid Syndrome Diarrhea · Carcinoid Intestine Tumor · Carcinoid Tumor of Liver · Carcinoid Tumor of Pancreas

Timeline

1 trial · 1 completed · 1 with posted results

  • Completed
  • Ongoing
  • Not yet recruiting
  • Stopped
  • Estimated dates (est.)
  • Results posted
202220232024202520262027
  1. Ph 2

    Study to Evaluate the Safety, PK, and Dose Response of Paltusotine in Subjects With Carcinoid Syndrome

    NCT05361668

    22 Apr 2022 to 24 Feb 2026

Registry summary

Text and fields below are the sponsor's entries at ClinicalTrials.gov, shown as posted.

The purpose of this study is to evaluate the safety, pharmacokinetics (PK), and exploratory dose response of paltusotine treatment in subjects with carcinoid syndrome. This study consists of a Randomized Treatment Phase followed by an Open-Label Extension (OLE) Phase.

Interventions

  • Randomized: 40 mg PaltusotineDrug
  • Randomized: 80 mg PaltusotineDrug

Arms2

  • Experimental

    40 mg Paltusotine

    Participants received paltusotine 40mg, in tablet form, orally, daily, for 8 weeks.

  • Experimental

    80 mg Paltusotine

    Participants received paltusotine 80mg, in tablet form, orally, daily for 8 weeks.

Primary outcomes1

Outcomes the sponsor listed as primary.

  1. Safety - Incidence of Treatment-emergent Adverse Events (TEAEs)

    Time frame · First dose of investigational medicine to End of Randomized Treatment Phase (8 weeks)

    Registry description

    Incidence of TEAEs, including serious TEAEs and TEAEs leading to discontinuation; change from baseline to the EOR in safety parameters: clinical laboratory tests, physical exam findings, vital signs, 12-lead ECG, and 24-hour continuous cardiac monitoring (only for subjects on 120 mg dose). In addition to all-cause mortality, deaths were categorized by primary cause (e.g., cardiovascular) based on medical adjudication. Events were coded using MedDRA and summarized by treatment group, system organ class, and preferred term. TEAEs were reported per randomized arm. There were 2 randomized arms (40 mg and 80 mg paltusotine, with up-or down-dose titration permitted for symptom control). Results are analyzed based on the initially assigned randomization arm, regardless of the actual dose received.

Secondary outcomes(1)
  1. Pharmacokinetics (PK) of Paltusotine

    Time frame · Measured at each visit (pre and post dose) up to Week 8 (i.e., End of Randomized Treatment Phase [EOR])

    Registry description

    Steady state trough levels by dose and visit for Randomized Treatment Phase (RTP). The "Overall Number of Participants Analyzed" displayed at the top of the PK summary table represents the total number of participants who received each dose at any point during the trial, factoring in dose titrations. PK results are summarized by actual dose taken right before the time of sample collection, rather than by randomized dose. Participants may be included in different dose groups for different visits due to dose titration.

Posted results

Values are shown as posted at ClinicalTrials.gov, with their units. PepBank has not converted, pooled or compared them.

Primary outcome results

Primary outcomeNumber· First dose of investigational medicine to End of Randomized Treatment Phase (8 weeks)

Safety - Incidence of Treatment-emergent Adverse Events (TEAEs)

GroupValue (participants)
40 mg Paltusotine16
80 mg Paltusotine15
Secondary and other outcome results(1)
Secondary outcomeGeometric mean· Measured at each visit (pre and post dose) up to Week 8 (i.e., End of Randomized Treatment Phase [EOR])

Pharmacokinetics (PK) of Paltusotine

GroupValue (ng/mL)Spread
40 mg Paltusotine18880.8
80 mg Paltusotine360103.3
120 mg Paltusotinenot posted–

Adverse events, as posted

Adverse events as posted: participants affected out of participants at risk, by group
GroupDeathsSerious eventsOther events
40 mg PaltusotineRandomized: 40 mg paltusotine: Two 20 mg tablets QD (Potential post-randomization dose escalation based on efficacy and acceptable tolerability: up to 80 mg)0 / 182 / 1816 / 18
80 mg PaltusotineRandomized: 80 mg paltusotine: Four 20 mg tablets QD (Potential post-randomization dose escalation based on efficacy and acceptable tolerability: up to 120 mg)1 / 182 / 1815 / 18

Each cell reads participants affected / participants at risk, as the registry posted them.

Registry data comes from ClinicalTrials.gov. Study results come from studies, not from the registry. How PepBank works

Studies0

Studies that cite this trial.

No study cites this trial.

Eligibility

Who could join, as posted.

Sex
All
Age
from 18 Years
Healthy volunteers
Not accepted
Inclusion and exclusion criteria, as posted
Inclusion Criteria: 1\. Male or female subjects ≥18 years of age. 2. Documented carcinoid syndrome requiring medical therapy. 1. Not currently treated with somatostatin receptor ligands agonists for at least 12 weeks prior to screening and actively symptomatic. This can include treatment-naïve subjects. 2. Subjects currently treated with lanreotide, octreotide long acting release, or short acting octreotide (subcutaneous or oral) who are currently symptomatically controlled 3. Evaluable documentation of locally advanced or metastatic histopathologically confirmed well-differentiated neuroendocrine tumor (NET). Tumors must be Grade 1 (Ki-67 index \< 3%, or a mitotic count of \< 2 mitoses per 10 high-power fields, if the Ki-67 index is not available) or Grade 2 (Ki-67 index 3-20%, or a mitotic count of 2-20 mitoses per 10 high-power fields, if the Ki-67 index is not available) per the World Health Organization neuroendocrine neoplasm classification (Rindi and Inzani, 2020). Grade 3 tumors are not eligible. 4. No significant disease progression as assessed by the Investigator within the last 6 months before initiation of study drug dosing. Exclusion Criteria: 1. Diarrhea attributed to any condition(s) other than carcinoid syndrome. 2. Uncontrolled/severe diarrhea associated with significant volume contraction, dehydration, or hypotension. 3. Requires second line treatments (eg, telotristat) for control of carcinoid syndrome symptoms. 4. Treatment with specific NET tumor therapy \<4 weeks before Screening (such as everolimus or sunitinib) or hepatic embolization, radiotherapy, peptide receptor radionuclide therapy (PRRT), and/or tumor debulking \<12 weeks before Screening. 5. History of another primary malignancy \<3 years prior to the date of first dose, except for adequately treated basal or squamous cell carcinoma of the skin, cancer of the breast or cervix in situ, previously treated or concurrent malignancy determined to be clinically stable and not requiring treatment. 6. Diabetes mellitus treated with insulin for less than 6 weeks prior to the study entry.

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