A Study to Investigate the Safety and Efficacy of KQB198 as Monotherapy and in Combination in Participants With Advanced Solid Malignancies

NCT ID: NCT06507306

Last Updated: 2025-12-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE1

Total Enrollment

100 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-06-03

Study Completion Date

2027-01-31

Brief Summary

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The goal of this clinical trial is to learn if KQB198 works to treat advanced solid tumor cancer in adults. It will also learn about the safety of KQB198. The main questions it aims to answer are:

* What is the safe dose of KQB198 by itself or in combination with other anti-cancer drugs?
* Does KQB198 alone or in combination with other anti-cancer drugs decrease the size of the tumor?
* What happens to KQB198 in the body?

Participants will:

* Take KQB198 daily, alone or in combination with another anti-cancer drug
* Visit the clinic about 8 times in the first 8 weeks, and then once every 4 weeks after that

Detailed Description

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Conditions

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Solid Tumor, Adult

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SEQUENTIAL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Monotherapy Dose Escalation

Group Type EXPERIMENTAL

KQB198

Intervention Type DRUG

Oral KQB198

Combo Therapy Dose Escalation

Group Type EXPERIMENTAL

KQB198

Intervention Type DRUG

Oral KQB198

Osimertinib

Intervention Type DRUG

Oral Osimertinib

Amivantamab

Intervention Type DRUG

Subcutaneous administration

Combo Therapy Dose Expansion - RP2D

Group Type EXPERIMENTAL

KQB198

Intervention Type DRUG

Oral KQB198

Osimertinib

Intervention Type DRUG

Oral Osimertinib

Amivantamab

Intervention Type DRUG

Subcutaneous administration

Combo Therapy Dose Expansion - RP2D-1

Group Type EXPERIMENTAL

KQB198

Intervention Type DRUG

Oral KQB198

Osimertinib

Intervention Type DRUG

Oral Osimertinib

Amivantamab

Intervention Type DRUG

Subcutaneous administration

Combo Therapy Dose Expansion OBD

Group Type EXPERIMENTAL

KQB198

Intervention Type DRUG

Oral KQB198

Osimertinib

Intervention Type DRUG

Oral Osimertinib

Amivantamab

Intervention Type DRUG

Subcutaneous administration

Interventions

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KQB198

Oral KQB198

Intervention Type DRUG

Osimertinib

Oral Osimertinib

Intervention Type DRUG

Amivantamab

Subcutaneous administration

Intervention Type DRUG

Other Intervention Names

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Tagrisso

Eligibility Criteria

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Inclusion Criteria

* PART 1 - Histologically confirmed diagnosis of a solid tumor malignancy with any of the following oncogenic mutations: EGFR, RAS, PTPN11, or SOS1 mutations, or inactivating mutations of NF1.
* PART 1 - (Osimertinib and Amivantamab arms) and Part 2 Cohort A and Cohort B: Histologically confirmed diagnosis of NSCLC with activating EGFR mutation and progression on osimertinib
* Part 3 - Cohort A: Histologically confirmed diagnosis of NSCLC with exon 20 insertion EGFR mutation
* Unresectable or metastatic disease
* No available treatment with curative intent
* Adequate organ function
* Measurable disease per RECIST 1.1.

Exclusion Criteria

* Prior therapy with a similar mechanism of action to KQB198
* History of intestinal disease, inflammatory bowel disease, major gastric surgery, or other gastrointestinal conditions likely to alter absorption of study treatment or result in inability to swallow
* History of interstitial lung disease
* Cardiac abnormalities
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Kumquat Biosciences Inc.

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Sarah Cannon Research Institute at HealthONE

Denver, Colorado, United States

Site Status RECRUITING

Sarah Cannon Research Institute at Florida Cancer Specialists - Lake Nona -

Orlando, Florida, United States

Site Status RECRUITING

Florida Cancer Specialists - Sarasota

Sarasota, Florida, United States

Site Status RECRUITING

Henry Ford Health System

Detroit, Michigan, United States

Site Status RECRUITING

David H. Koch Center for Cancer Center at Memorial Sloan Kettering Cancer Center

Long Island City, New York, United States

Site Status RECRUITING

The Lindner Center for Research and Education at The Christ Hospital

Cincinnati, Ohio, United States

Site Status RECRUITING

Sarah Cannon and HCA Research Institute

Nashville, Tennessee, United States

Site Status RECRUITING

MD Anderson Cancer Center

Houston, Texas, United States

Site Status RECRUITING

New Experimental Therapeutics of San Antonio - NEXT Oncology

San Antonio, Texas, United States

Site Status RECRUITING

New Experimental Therapeutics of Virginia - NEXT Oncology

Fairfax, Virginia, United States

Site Status RECRUITING

Institut Paoli-Calmettes

Marseille, Bouches-du-Rhône, France

Site Status RECRUITING

Institut de Cancerologie de l'Ouest - site St-Herblain

Saint-Herblain, Loire-Atlantique, France

Site Status RECRUITING

CHU Bordeaux - Hopital Saint-Andre

Bordeaux, Nouvelle-Aquitane, France

Site Status RECRUITING

IUCT-Oncopole

Toulouse, Occitaine, France

Site Status RECRUITING

CHU de Nantes - Hopital Nord Laennec

Nantes, Pays de la Loire Region, France

Site Status RECRUITING

Fondazione Policlinico Universitario A. Gemelli IRCCS - Universita Cattolica del Sacro Cuore

Rome, Lazio, Italy

Site Status RECRUITING

Istituto Nazionale Tumori IRCCS "Fondazione G. Pascale"

Napoli, , Italy

Site Status RECRUITING

National Cancer Center

Goyang-si, Gyeonggi-do, South Korea

Site Status WITHDRAWN

Chonnam National University Hwasun Hospital

Hwasun, Jeollanam-do, South Korea

Site Status WITHDRAWN

Severance Hospital, Yonsei University Health System

Seoul, Seoul, South Korea

Site Status WITHDRAWN

Seoul St. Mary's Hospital, The Catholic University of Korea

Seoul, Seoul, South Korea

Site Status WITHDRAWN

Hospital Universitari Quiron Dexeus Barcelona

Barcelona, Catalonia, Spain

Site Status RECRUITING

Hospital Universitario Vall d'Hebron

Barcelona, Catalonia, Spain

Site Status RECRUITING

New Experimental Therapeutics (NEXT) Oncology Barcelona

Barcelona, , Spain

Site Status RECRUITING

South Texas Accelerated Research Therapeutics (START) Barcelona- HM Nou Delfos

Barcelona, , Spain

Site Status RECRUITING

Hospital Universitario Ramon y Cajal

Madrid, , Spain

Site Status RECRUITING

South Texas Accelerated Research Therapeutics (START) Madrid - CIOCC

Madrid, , Spain

Site Status RECRUITING

New Experimental Therapeutics (NEXT) Oncology Madrid - Hospital Quironsalud Madrid

Madrid, , Spain

Site Status RECRUITING

South Texas Accelerated Research Therapeutics (START) Madrid - Hospital Fundacion Jimenez Diaz

Madrid, , Spain

Site Status RECRUITING

Hospital Quirónsalud Málaga

Málaga, , Spain

Site Status RECRUITING

Clinica Universidad de Navarra - Pamplona

Pamplona, , Spain

Site Status RECRUITING

Chi-Mei Hospital - Liouying Branch

Liuying, Tainan City, Taiwan

Site Status WITHDRAWN

National Taiwan University Hospital

Taipei, Taipei City, Taiwan

Site Status WITHDRAWN

Taipei Veterans General Hospital

Taipei, Taiwan, Taiwan

Site Status WITHDRAWN

Taichung Veterans General Hospital

Taichung, , Taiwan

Site Status WITHDRAWN

Countries

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United States France Italy South Korea Spain Taiwan

Central Contacts

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Kumquat Clinical Development

Role: CONTACT

(858) 214-2700

Facility Contacts

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Shelby Mosier-Murray

Role: primary

720-754-7862

Ingrid Acker

Role: primary

904-380-2414

Mallory Hawkins

Role: primary

941-377-9993 ext. 21654

Jeevana Koneru

Role: primary

313-725-7857

Navkaran Singh

Role: primary

Abby Reed

Role: primary

513-585-1140

Derrick Porter

Role: primary

619-982-4133

Payton Morel

Role: primary

713-825-7049

Steven Alvarado

Role: primary

Aber Lopez

Role: primary

703-565-2881

Roqiya Nouar

Role: primary

Emilie Toueni

Role: primary

+33 (0)2.40.67.99.00 ext. 9508

Guerin Frederic

Role: primary

Lucie Ndiaye

Role: primary

Francesco Paroni Sterbini

Role: primary

Marina Garcia Prat

Role: primary

Paula Barranco

Role: primary

Abigail Huerta

Role: primary

Rodolfo Fuentes

Role: primary

Asier Artazcoz

Role: primary

913368905

Silvia Garcia Cuadrado

Role: primary

Pierpaolo Pisanu

Role: primary

Maria Conesa Garcia-Vera

Role: primary

0034915504800 ext. 2201

Irene Fernandez

Role: primary

Eduardo de la Guardia

Role: primary

Other Identifiers

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KQB198-101

Identifier Type: -

Identifier Source: org_study_id