← Back to Clinical Trials
Recruiting Phase 1 NCT06150157

NCT06150157 A Study of JNJ-88549968 for the Treatment of Calreticulin (CALR)-Mutated Myeloproliferative Neoplasms

◆ AI Clinical Summary
Plain-language summary for patients
Clinical Trial Summary
NCT ID NCT06150157
Status Recruiting
Phase Phase 1
Sponsor Janssen Research & Development, LLC
Condition Neoplasms
Study Type INTERVENTIONAL
Enrollment 300 participants
Start Date 2023-12-20
Primary Completion 2026-12-04

Eligibility & Interventions

Sex All sexes
Min Age 18 Years
Max Age N/A
Study Type INTERVENTIONAL
Interventions
JNJ-88549968RuxolitinibMomelotinib

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 300 participants in total. It began in 2023-12-20 with a primary completion date of 2026-12-04.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief Summary

The purpose of this study is to characterize safety and to determine the Recommended Phase 2 Dose (RP2D\[s\]) and optimal dosing schedule(s) of JNJ-88549968 in part 1 (Dose Escalation); to characterize the safety of JNJ- 88549968 at RP2D(s) in part 2 (Cohort Expansion). For U.S. sites: the purpose of this study is to characterize the safety and to determine the RP2D(s) and optimal dosing schedule(s) of JNJ-88549968 in Part 1 and part 1b (Dose Escalation), and to characterize the safety of JNJ-88549968 at the RP2D(s) in Part 2 and part 2b (Cohort Expansion), when given as monotherapy in essential thrombocythemia (ET) or myelofibrosis (MF), and with ruxolitinib or momelotinib in MF only.

Eligibility Criteria

Inclusion Criteria: * Be greater than or equal to (\>=) 18 years of age (or the legal age of majority in the jurisdiction in which the study is taking place, whichever the greater) at the time of informed consent * Positive for a calreticulin (CALR) driver mutation of essential thrombocythemia (ET) or myelofibrosis (MF) * Participants with ET and MF with risk characteristics as described in the protocol * Have an Eastern Cooperative Oncology Group (ECOG) performance status grade of less than or equal to (\<=) 2 * For US sites: Eligible for ruxolitinib therapy as per drug label for participants naive to a janus kinase (JAK) inhibitor Exclusion Criteria: * Known allergies, hypersensitivity, or intolerance to the excipients of the study treatment * Concurrent or recently diagnosed or treated malignancies present at the time of participant screening. Exceptions are squamous and basal cell carcinoma of the skin, carcinoma in situ of the cervix, and any malignancy that is considered cured or has minimal risk of recurrence within 1 year of first dose of study treatment in the opinion of both the investigator and sponsor's medical monitor. Participants cured of another malignant disease with no sign of relapse greater than or equal to (\>=) 3 years after treatment ended are allowed to enter the study * Prior solid organ transplantation * Either of the following regarding hematopoietic stem cell transplantation: 1. Prior treatment with allogenic stem cell transplant less than or equal to (\<=) 6 months before the first dose of JNJ-88549968 or 2. Evidence of graft versus host disease (GVHD) that requires immunosuppressant therapy * History of clinically significant cardiovascular disease within 6 months prior to the first dose of study treatment

Contact & Investigator

Central Contact

Study Contact

✉ Participate-In-This-Study1@its.jnj.com

📞 844-434-4210

Principal Investigator

Janssen Research & Development, LLC Clinical Trial

STUDY DIRECTOR

Janssen Research & Development, LLC

Frequently Asked Questions

Who can join the NCT06150157 clinical trial?

This trial is open to participants of all sexes, aged 18 Years or older, studying Neoplasms. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

What phase is the NCT06150157 trial and what does that mean for participants?

Phase 1 trials are the first stage of human testing. The primary goal is to assess safety and determine appropriate dosage levels. Participants are closely monitored. These trials typically involve a small number of volunteers.

Is NCT06150157 currently recruiting?

Yes, NCT06150157 is actively recruiting participants. Contact the research team at Participate-In-This-Study1@its.jnj.com for enrollment information.

Where is the NCT06150157 trial being conducted?

This trial is being conducted at Duarte, United States, Aurora, United States, Tampa, United States, Atlanta, United States and 11 additional locations.

Who is sponsoring the NCT06150157 clinical trial?

NCT06150157 is sponsored by Janssen Research & Development, LLC. The principal investigator is Janssen Research & Development, LLC Clinical Trial at Janssen Research & Development, LLC. The trial plans to enroll 300 participants.

Related Trials

ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: September 2026  ·  Data Methodology