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Solid Tumor, AdultPhase 1ArgonautNCT05480865

SHP2 Inhibitor BBP-398 in Combination With Sotorasib in Patients With Advanced Solid Tumors and a KRAS-G12C Mutation

A Phase 1 study testing BBP-398 and sotorasib in people with Solid Tumor, Adult and Metastatic Solid Tumor, run by Navire Pharma Inc., a BridgeBio company at 25 sites in 7 countries.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This is a Phase 1 study of BBP-398, a SHP2 inhibitor, in combination with sotorasib, a KRAS-G12C inhibitor (KRAS-G12Ci), in patients with a KRAS-G12C mutation. The study involves 2 parts: Phase 1a Dose Escalation and Phase 1b Dose Expansion/Optimization. Read more about this study

Who is it for?
Ages 18 to 99 years
What is being tested?
BBP-398 and sotorasib
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
28 participants
Where
25 sitesin 7 countries
Study dates
6 Jul 2022to 22 Aug 2024
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients must have histologically documented, locally advanced and unresectable, or metastatic solid tumor with documentation of a KRAS-G12C mutation within 2 years prior to screening.
  • Patients must have measurable disease by RECIST v1.1.
  • Patients must have a minimum life expectancy of >12 weeks after start of study treatment.
  • Patients must have progression or disease recurrence on or after all available standard of care therapies.
  • Patients must have an Eastern Cooperative Oncology Group (ECOG) performance status (PS) 0-1.
  • Patients must have adequate organ function.

Who cannot join

  • Patients that have participated in an interventional clinical study within the last 4 weeks.
  • Patients that have received radiotherapy or proton therapy with a limited field of radiation for palliation within 1 week of the start of study treatment, OR radiation to more than 30% of the bone marrow or with a wide field of radiation within 4 weeks of the start of study treatment.
  • Patients with untreated and/or active CNS metastases.
  • Patients that have a history of allogenic bone marrow transplant.

Trial locations and contacts

25 sites in 7 countries.

25 sites in 7 countries

Australia6 sites
  • Cancer Research SA

    Adelaide, South Australia, 5000

  • Southern Oncology Clinical Research Unit

    Adelaide, South Australia, 5042

  • Peninsula & South Eastern Haematology and Oncology Group

    Frankston, Victoria, 3199

  • Orange Health Service

    Orange, NSW 2800

  • One Clinical Research

    Perth, Western Australia, 6009

  • St John of God Subiaco Hospital

    Subiaco, Western Australia, 6008

Other trials in Australia

Spain6 sites
  • Quiron Salud Barcelona

    Barcelona, 08023

  • Vall d'Heborn University Hospital - VHIO

    Barcelona, 08035

  • Clinica Universidad de Navarra

    Madrid, 28027

  • Quiron Salud Madrid

    Madrid, 28223

  • Virgen De La Victoria

    Málaga, 29010

  • Hospital Universitario Virgen De La Macarena

    Seville

Other trials in Spain

France5 sites
  • Institute Bergonie

    Bordeaux, 33076

  • Centre Georges François Leclerc

    Dijon, 21079

  • CHU Grenobles Aples

    Grenoble, 38043 CEDEX9

  • Hopital Bichat-Claude Bernard

    Paris, 75018

  • CHU de Rennes - Hôpital Pontchaillou

    Rennes, 35000

Other trials in France

Italy4 sites
  • Spedali Civili - Brescia

    Brescia, 25123

  • Careggi University Hospital

    Florence, Largo Brambilla, 50134

  • Istituto Nazionale Tumori (INT) "Fondazione G. Pascale"

    Naples, 80131

  • U.O.C Oncoematologia AOU "Luigi Vanvitelli"

    Naples, 80131

Other trials in Italy

Netherlands2 sites
  • Het Nederlands Kanker Instituut - Antoni van Leewenhoek Ziekenhuis

    Amsterdam, 1066 CX

  • Erasmus Medical Center

    Rotterdam, 3000 CA

Other trials in Netherlands

Denmark1 site
  • Rigshospitalet

    Copenhagen, DK-2100

Other trials in Denmark

Greece1 site
  • St. Luke's Hospital S.A.

    Thessaloniki, 55236

Other trials in Greece

About this study

Official title: A Phase 1 Study of the SHP2 Inhibitor BBP-398 (Formerly Known as IACS-15509) in Combination With the KRAS-G12C Inhibitor Sotorasib in Patients With Advanced Solid Tumors and a KRAS-G12C Mutation

This is a Phase 1 study of BBP-398, a SHP2 inhibitor, in combination with sotorasib, a KRAS-G12C inhibitor (KRAS-G12Ci), in patients with a KRAS-G12C mutation.

The study involves 2 parts: Phase 1a Dose Escalation and Phase 1b Dose Expansion/Optimization.

Read the detailed description

The primary objectives for Phase 1a Dose Escalation are to evaluate safety and tolerability, and recommend a phase 1b dose (RP1bD) of the combination.

The primary objectives for Phase 1b Dose Expansion/Optimization are to evaluate safety and tolerability, and the antitumor activity (defined by the ORR assessed by the investigator according to RECIST v1.1) of BBP-398 when used in combination with sotorasib across two dose regimens in patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) with a KRAS-G12C mutation and who are KRAS-G12Ci naïve, and recommend a phase 2 dose (RP2D) of the combination.

Being tested
BBP-398, sotorasib
Keywords
KRAS-G12C mutation, SHP2, MAPK-pathway alterations, NSCLC
Medical subject headings
Neoplasm Metastasis, Carcinoma, Non-Small-Cell Lung

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • BBP-398Drug

    BBP-398 administered orally

  • sotorasibDrug

    sotorasib administered orally

Study groups in NCT05480865
Study groupRoleWhat they receive
Dose Escalation: BBP-398 Level 1 and sotorasibExperimentalBBP-398 dose Level 1 capsules administered once a day (QD) for a 28-day treatment cycle in combination with sotorasib tablets administered once a day (QD) for a 28-day treatment cycle
Receives: Drug: BBP-398; Drug: sotorasib
Dose Escalation: BBP-398 Level 2 and sotorasibExperimentalBBP-398 dose Level 2 capsules administered once a day (QD) for a 28-day treatment cycle in combination with sotorasib tablets administered once a day (QD) for a 28-day treatment cycle
Receives: Drug: BBP-398; Drug: sotorasib
Dose Escalation: BBP-398 Level 3 and sotorasibExperimentalBBP-398 dose Level 3 capsules administered once a day (QD) for a 28-day treatment cycle in combination with sotorasib tablets administered once a day (QD) for a 28-day treatment cycle
Receives: Drug: BBP-398; Drug: sotorasib
Dose Expansion/Optimization: BBP-398 Dose Regimen 1 and sotorasibExperimentalBBP-398 Dose Regimen 1 capsules administered once a day (QD) for a 28-day treatment cycle in combination with sotorasib tablets administered once a day (QD) for a 28-day treatment cycle
Receives: Drug: BBP-398; Drug: sotorasib
Dose Expansion/Optimization: BBP-398 Dose Regimen 2 and sotorasibExperimentalBBP-398 Dose Regimen 2 capsules administered once a day (QD) for a 28-day treatment cycle in combination with sotorasib tablets administered once a day (QD) for a 28-day treatment cycle
Receives: Drug: BBP-398; Drug: sotorasib

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Phase 1a Dose Escalation Primary Objective: Incidence and Severity of Treatment-Emergent Adverse Events, Serious Adverse Events, and Dose Limiting Toxicities

    Number of patients experiencing treatment-emergent adverse events, serious adverse events, including changes in lab parameters, vital signs and electrocardiogram changes; duration, and severity based on National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v5.0

    Measured: Completion of 1 Cycle (28 days)

  2. Phase 1b Dose Expansion/Optimization Primary Objective: Incidence and Severity of Treatment-Emergent Adverse Events, and Serious Adverse Events

    Number of patients experiencing treatment-emergent adverse events, serious adverse events, including changes in lab parameters, vital signs and electrocardiogram changes; duration, and severity based on National Cancer Institute (NCI) Common Terminology Criteria for Adverse Events (CTCAE) v5.0

    Measured: Completion of 1 Cycle (28 days)

  3. Phase 1b Dose Expansion/Optimization Primary Objective: Overall Response Rate (ORR)

    Complete Response (CR) + Partial Response (PR) rates, defined by RECIST v1.1

    Measured: 8 weeks

Secondary outcomes (13)
  1. Phase 1a Dose Escalation Secondary Objectives: Overall Response Rate (ORR)

    Complete Response (CR) + Partial Response (PR) rates, defined by RECIST v1.1

    Measured: 8 weeks

  2. Duration of response

    Defined by RECIST v1.1

    Measured: 8 weeks

  3. Progression Free Survival (PFS)

    Time from treatment start to progression of disease or death by any cause

    Measured: 8 weeks

  4. Overall survival (OS)

    Time from treatment start to death

    Measured: 8 weeks

  5. Maximum Observed Plasma Concentration (Cmax) of BBP-398

    Maximum plasma concentration of BBP-398 in combination with sotorasib

    Measured: Cycle 2 Day 1

  6. Time to Cmax (Tmax) of BBP-398

    Amount of time to reach Cmax of BBP-398 in combination with sotorasib

    Measured: Cycle 2 Day 1

  7. Area under the plasma concentration-time curve (AUC) of BBP-398

    Area under the plasma concentration versus time curve of BBP-398 in combination with sotorasib

    Measured: Cycle 2 Day 1

  8. Half-life (T1/2) of BBP-398

    Terminal half-life of BBP-398 in combination with sotorasib

    Measured: Cycle 2 Day 1

  9. Observed Maximum Plasma Concentration (Cmax) of sotorasib

    Maximum plasma concentration of sotorasib in combination with BBP-398

    Measured: Cycle 2 Day 1

  10. Time to Cmax (Tmax) of sotorasib

    Amount of time to reach Cmax of sotorasib in combination with BBP-398

    Measured: Cycle 2 Day 1

  11. Area under the plasma concentration-time curve (AUC) over dosing interval of sotorasib

    Area under the plasma concentration versus time curve of sotorasib in combination with BBP-398

    Measured: Cycle 2 Day 1

  12. Half-life (T1/2) of sotorasib

    Terminal half-life of sotorasib in combination with BBP-398

    Measured: Cycle 2 Day 1

  13. Circulating and intratumoral target engagement biomarkers of BBP-398 activity in combination with sotorasib

    Raw, normalized, and/or baseline adjusted analyte signal

    Measured: 24 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted29 Jul 2022
  2. Study start6 Jul 2022
  3. Primary completion22 Aug 2024
  4. Study completion22 Aug 2024

Why it stopped: Business Reasons

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Sequential
Masking
None (open label)
Enrolment
28 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05480865
Sponsor's protocol ID
NAV-1003
Acronym
Argonaut
Status last verified
Dec 2024
First submitted
15 Jul 2022
Last updated
12 Dec 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
Yes
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing BBP-398 and sotorasib in people with Solid Tumor, Adult and Metastatic Solid Tumor, run by Navire Pharma Inc., a BridgeBio company at 25 sites in 7 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 12 Dec 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 25 sites in Australia, Spain, France, Italy, Netherlands and 2 more countries. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: Business Reasons). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Phase 1a Dose Escalation Primary Objective: Incidence and Severity of Treatment-Emergent Adverse Events, Serious Adverse Events, and Dose Limiting Toxicities (time frame: Completion of 1 Cycle (28 days)). The study lists 3 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 12 Dec 2024; AzTrials last refreshed its copy on 8 Nov 2026.

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