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Ivosidenib, Nivolumab, and Ipilimumab Combination in Previously Treated Subjects With Nonresectable or Metastatic IDH1 Mutant Cholangiocarcinoma

A Phase 1/2, Safety Lead-in and Dose Expansion, Open-label, Multicenter Trial Investigating the Safety, Tolerability, and Preliminary Activity of Ivosidenib in Combination With Nivolumab and Ipilimumab in Previously Treated Subjects With Nonresectable or Metastatic Cholangiocarcinoma With an IDH1 Mutation

Status
Terminated
Phases
Phase 1Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05921760
Enrollment
7
Registered
2023-06-27
Start date
2023-10-23
Completion date
2024-11-21
Last updated
2026-04-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

IDH1-mutant Cholangiocarcinoma

Brief summary

This is a Phase 1/2 study evaluating the safety, tolerability, and activity of ivosidenib in combination with immunotherapy in participants with nonresectable or metastatic cholangiocarcinoma. The study includes two phases: the safety lead-in phase to determine the recommended combination dose (RCD) of ivosidenib in combination with immunotherapy and the dose expansion phase to assess the efficacy of ivosidenib in combination with immunotherapy. Study treatment will be administered until participant experiences unacceptable toxicity, disease progression, or other discontinuation criteria are met. This study was terminated by the sponsor before the expansion phase began and therefore participants were only involved in the safety lead-in phase.

Interventions

DRUGIvosidenib

ivosidenib taken once daily

DRUGNivolumab

Nivolumab taken by intravenous infusion

DRUGIpilimumab

Ipilimumab taken by intravenous infusion

Sponsors

Servier Bio-Innovation LLC
Lead SponsorINDUSTRY
Institut de Recherches Internationales Servier
CollaboratorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male of female participant age ≥ 18 years old * Have documented IDH1 gene-mutated disease based on local testing procedure (R132C/L/G/H/S mutations variants tested) * Eastern Cooperative Oncology Group performance status (ECOG PS) score of 0 or 1 * Has a histopathological diagnosis consistent with nonresectable or metastatic cholangiocarcinoma and are not eligible for curative resection, transplantation, or ablative therapies * Participants must have at least one measurable lesion as defined by RECIST Version 1.1. Subjects who have received prior local therapy (including but not limited to embolization, chemoembolization, radiofrequency ablation, or radiation therapy) are eligible provided measurable disease falls outside of the treatment field or if within the field but has shown ≥ 20% growth in size post-treatment assessment.

Exclusion criteria

* Received prior treatment with an IDH inhibitor or prior treatment with an immune checkpoint inhibitor other than anti-PD1/L1 * Have active autoimmune disease or any condition requiring systemic treatment with either corticosteroids (\> 10 mg daily of prednisone equivalents) or other immunosuppressive medications within 14 days of study treatment * Participants who have not recovered from toxicity of previous anticancer therapy, including Grade ≥ 1 non-hematologic toxicity, according to the National Cancer Institute Common Terminology Criteria for Adverse Events v5.0, prior to the first IMP administration. Residual Grade ≤ 2 toxicity from chemotherapy (e.g., alopecia, neuropathy) may be allowed. * Have known symptomatic brain metastases requiring steroids. Subjects with previously diagnosed brain metastases are eligible if they have completed their treatment and have recovered from the acute effects of radiation therapy or surgery prior to study entry, have discontinued corticosteroid treatment for these metastases for at least 4 weeks, and have radiographically stable disease for at least 3 months prior to study entry. Note: Up to 10 mg per day of prednisone equivalent will be allowed.

Design outcomes

Primary

MeasureTime frameDescription
Safety Lead-In Phase: Number of Dose Limiting Toxicities (DLTs) Associated With Study Drug Regimen, During the First 2 Cycles of TreatmentThrough the end of Cycle 2, day 42 (Cycle 1 and 2 are each 21 days)Occurring during the safety lead-in phase
Safety Lead-In Phase: Number of Adverse Events (AEs)Through study termination (approximately 1 year)Occurring during the safety lead-in phase
Safety Lead-In Phase: Number of Participants With Adverse Events of Special Interests (AESIs)Through study termination (approximately 1 year)Occurring during the safety lead-in phase
Safety Lead-In Phase: Number of Serious Adverse Events (SAEs)Through study termination (approximately 1 year)Occurring during the safety lead-in phase

Secondary

MeasureTime frameDescription
Safety Lead-In Phase: Area Under the Concentration-vs-time Curve (AUC) From 0 to Time of Last Measurable Concentration (AUC0-t)Up to 3 yearsOccurring during the safety lead-in phase
Safety Lead-In Phase: Plasma 2-hydroxyglutarate (2-HG) Concentrationup to 3 yearsOccurring during the safety lead-in phase
Safety Lead-In Phase: AUC Over 1 Dosing Interval at Steady State (AUCtau,ss)Up to 3 yearsOccurring during the safety lead-in phase
Safety Lead-In Phase: Time to Maximum Concentration (Tmax)Up to 3 yearsOccurring during the safety lead-in phase
Safety Lead-In Phase: Maximum Concentration (Cmax)Up to 3 yearsOccurring during the safety lead-in phase
Safety Lead-In Phase: Trough Concentration (Ctrough)Up to 3 yearsOccurring during the safety lead-in phase
Safety Lead-In Phase: Apparent Volume of Distribution (Vd/F)Up to 3 yearsOccurring during the safety lead-in phase
Safety Lead-In Phase: Apparent Clearance (CL/F)Up to 3 yearsOccurring during the safety lead-in phase

Countries

United Kingdom, United States

Baseline characteristics

Characteristic
Age, Continuous55.9 years
STANDARD_DEVIATION 18.12
Age, Customized
< 65 years
4 Participants
Age, Customized
≥ 65 years
3 Participants
BMI23.33 kg/m^2
STANDARD_DEVIATION 2.114
Race/Ethnicity, Customized
Asian
1 Participants
Race/Ethnicity, Customized
Missing
1 Participants
Race/Ethnicity, Customized
Not Hispanic or Latino
3 Participants
Race/Ethnicity, Customized
White
6 Participants
Region of Enrollment
United Kingdom
2 participants
Region of Enrollment
United States
5 participants
Sex: Female, Male
Female
3 Participants
Sex: Female, Male
Male
0 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
3 / 42 / 3
other
Total, other adverse events
4 / 43 / 3
serious
Total, serious adverse events
3 / 42 / 3

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 21, 2026