Clinical Trail to Evaluate the Effect of Long-term Treatment With Gecacitinib on Myelofibrosis and Gene Mutation Levels

NCT07342712 | Active Not Recruiting

• 1 other identifier: IIT20250082B-R2
• Study Type: observational
• Target: 40
• Locations: 1 country
• Sites: 1

Brief Summary

This study was an observational study, and about 40 patients with intermediate and high risk myelofibrosis who had participated in any previous clinical study of Gecacitinib hydrochloride and were still receiving Gecacitinib treatment in our center were expected to be enrolled. There was no additional drug intervention, only the myelofibrosis grade and gene mutation level of the patients were collected. Subjects who met all inclusion criteria and none of the exclusion criteria were eligible for inclusion in this study. After informed consent was obtained and screening was successful, bone marrow aspiration, bone marrow biopsy, and gene mutation testing were performed once. If bone marrow was extracted, peripheral blood could be used for gene mutation testing, and then annually until the permanent discontinuation of Gecacitinib.

Conditions

Myelofibrosis

Outcome Measures

Primary Outcomes (1)

• Proportion of patients with worsening/stable/improving myelofibrosis grade after treatment

  Sample collection: Bone marrow biopsy tissue was at least 1.5 cm in length to ensure accuracy of bone marrow analysis. The bone marrow fibers were graded by silver staining to ensure the objectivity and reproducibility of the grading results

  Successfully enrolled patients will undergo bone marrow biopsy as indicated by follow-up, and then once per 1 year until Gecacitinib is permanently discontinued or assessed up to 5 years, whichever came first.

Secondary Outcomes (1)

• The changes of JAK2 V617F, CALR and MPL W515L/K gene mutations after treatment were compared with those before treatment

  Successfully enrolled patients will undergo genetic testing as indicated by follow-up, and then once per 1 year until Gecacitinib is permanently discontinued or assessed up to 5 years, whichever came first.

Eligibility Criteria

• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17), Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

This study was an observational study, and about 40 patients with intermediate and high risk myelofibrosis who had participated in any previous clinical study of Gecacitinib hydrochloride and were still receiving Gecacitinib treatment in our center were expected to be enrolled. There was no additional drug intervention, only the myelofibrosis grade and gene mutation level of the patients were collected. Subjects who met all inclusion criteria and none of the exclusion criteria were eligible for inclusion in this study.

You may qualify if:

• They had been enrolled in previous clinical trials of gefitinib for myelofibrosis (ZGJAK002, ZGJAK006, ZGJAK016 and ZGJAK017) and were still receiving gefitinib treatment.
• Comply with the requirements of the ethics committee, voluntarily sign the informed consent.
• Able to adhere to study and follow-up procedures.

You may not qualify if:

• Patients with other serious diseases that the researcher believes may affect patient compliance and outcome observation.

Sponsors & Collaborators

• First Affiliated Hospital of Zhejiang University: lead

Study Sites (1)

The First Affiliated Hospital, Zhejiang University School of Medicine

Hangzhou, Zhejiang, 310000, China

Location

Related Publications (4)

• Zhang Y, Zhou H, Jiang Z, Wu D, Zhuang J, Li W, Jiang Q, Wang X, Huang J, Zhu H, Yang L, Du X, Li F, Xia R, Zhang F, Hu J, Li Y, Hu Y, Liu J, Jin C, Sun K, Zhou Z, Wu L, Yu W, Jin J. Safety and efficacy of jaktinib in the treatment of Janus kinase inhibitor-naive patients with myelofibrosis: Results of a phase II trial. Am J Hematol. 2022 Dec;97(12):1510-1519. doi: 10.1002/ajh.26709. Epub 2022 Oct 4.

  PMID: 36054786 BACKGROUND

• Zhang Y, Zhou H, Duan M, Gao S, He G, Jing H, Li J, Ma L, Zhu H, Chang C, Du X, Hong M, Li X, Liu Q, Wang W, Xu N, Yang H, Lu B, Yin H, Wu L, Suo S, Zhao Q, Xiao Z, Jin J. Safety and efficacy of jaktinib (a novel JAK inhibitor) in patients with myelofibrosis who are intolerant to ruxolitinib: A single-arm, open-label, phase 2, multicenter study. Am J Hematol. 2023 Oct;98(10):1588-1597. doi: 10.1002/ajh.27033. Epub 2023 Jul 20.

  PMID: 37470365 BACKGROUND

• Zhang Y, Zhou H, Suo S, Zhuang J, Yang L, He A, Liu Q, Du X, Gao S, Li Y, Li Y, Chen Y, Wu W, Zhu H, He G, Hong M, Jiang Q, Jiang Z, Jing H, Wang J, Xu N, Yue L, Zheng C, Zhou Z, Jin C, Li X, Liu L, Xu Y, Wu D, Zhang F, Zhang J, Wu L, Yin H, Lv B, Xiao Z, Jin J. Evaluation of gecacitinib vs hydroxyurea in patients with intermediate-2 or high-risk myelofibrosis: final analysis results from a randomized phase 3 study. Blood Cancer J. 2024 Dec 18;14(1):216. doi: 10.1038/s41408-024-01202-8.

  PMID: 39695117 BACKGROUND

• Zhang Y, Zhang Q, Liu Q, Dang H, Gao S, Wang W, Zhou H, Chen Y, Ma L, Wang J, Yang H, Lu B, Yin H, Wu L, Suo S, Zhao Q, Tong H, Jin J. Safety and efficacy of jaktinib (a novel JAK inhibitor) in patients with myelofibrosis who are relapsed or refractory to ruxolitinib: A single-arm, open-label, phase 2, multicenter study. Am J Hematol. 2023 Oct;98(10):1579-1587. doi: 10.1002/ajh.27031. Epub 2023 Jul 19.

  PMID: 37466271 BACKGROUND

MeSH Terms

Conditions

Primary Myelofibrosis

Condition Hierarchy (Ancestors)

Myeloproliferative Disorders; Bone Marrow Diseases; Hematologic Diseases; Hemic and Lymphatic Diseases

Study Design

• Study Type: observational
• Observational Model: CASE CONTROL
• Time Perspective: RETROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: July 4, 2025
• First Posted: January 15, 2026
• Study Start: August 1, 2025
• Primary Completion: April 1, 2026
• Study Completion (Estimated): December 7, 2027
• Last Updated: January 15, 2026

Record last verified: 2025-06

Locations

CN (1)