X4 Pharmaceuticals

11 total trials 2 currently recruiting 6 completed

X4 Pharmaceuticals sponsors 11 registered US clinical trials on ClinicalTrials.gov, 2 of them currently recruiting, and 6 completed. 2 of these trials are in Phase 3-4 (later-stage) and 9 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is WHIM Syndrome, with 1 trials.

Trial Pipeline

11 total, page 1 of 1

RECRUITING Phase 1

A Study to Investigate Pharmacokinetics (PK) and Safety of a Single Dose of Mavorixafor in Participants With Hepatic Impairment (HI) Compared to Matched Healthy Volunteers With Normal Hepatic Function

NCT06858696

RECRUITING Phase 3

A Study of Mavorixafor in Participants With Congenital and Acquired Primary Autoimmune and Idiopathic Chronic Neutropenic Disorders Who Are Experiencing Recurrent and/or Serious Infections

NCT06056297

ACTIVE NOT RECRUITING Phase 3

Efficacy and Safety Study of Mavorixafor in Participants With Warts, Hypogammaglobulinemia, Infections, and Myelokathexis (WHIM) Syndrome

NCT03995108

COMPLETED Phase 1

Drug-Drug Interaction Potential of Mavorixafor

NCT06914869

COMPLETED Phase 1

A Study of Mavorixafor in Participants With Congenital Neutropenia and Chronic Idiopathic Neutropenia Disorders

NCT04154488

COMPLETED Phase 1

A Study of Mavorixafor in Combination With Ibrutinib in Participants With Waldenstrom's Macroglobulinemia (WM) Whose Tumors Express Mutations in MYD88 and CXCR4

NCT04274738

TERMINATED Phase 1

Addition of X4P-001 to Nivolumab Treatment in Participants With Renal Cell Carcinoma

NCT02923531

COMPLETED Phase 2

A Dose Determination and Safety Study of X4P-001 (Mavorixafor) in Participants With Warts, Hypogammaglobulinemia, Infections, and Myelokathexis (WHIM) Syndrome

NCT03005327

COMPLETED Phase 1

X4P-001 and Pembrolizumab in Patients With Advanced Melanoma

NCT02823405

COMPLETED Phase 1

Trial of X4P-001 in Participants With Advanced Renal Cell Carcinoma

NCT02667886

TERMINATED Phase 1

A Study Comparing Once-Daily vs. Twice-Daily Dosing of X4P-001 in Healthy Volunteers

NCT02680782

Phase Distribution

PhaseTrial count
Phase 1 8
Phase 2 1
Phase 3 2

What the Pipeline for X4 Pharmaceuticals Shows

According to the ClinicalTrials.gov registry, X4 Pharmaceuticals is linked to 11 US clinical trials across every stage of research activity. Of those, 2 studies are currently recruiting, about 18% of the sponsor's indexed portfolio, and 6 are already marked complete, representing roughly 55% of the total.

The phase mix for X4 Pharmaceuticals reports 2 late-stage studies (Phase 3 and Phase 4 combined) and 9 earlier-phase studies (Phase 1 and Phase 2).

The top therapeutic focus area indexed for X4 Pharmaceuticals is WHIM Syndrome with 1 linked trial, and 4 other condition areas appear in the top list above.

How to read these pipeline numbers

Recruiting share is one of the more practical signals here: it reflects how much of a sponsor's research is presently open to new participants, while the completed share indicates the depth of finished work that has already contributed registry results. Both counts come directly from the public ClinicalTrials.gov dataset and are refreshed on the registry side; this page mirrors the latest data pull without altering it.

A portfolio weighted toward Phase 3 usually reflects an organization advancing candidates toward regulatory review, where the research centers on comparative efficacy and broader safety across larger populations. A heavier Phase 1 and Phase 2 tilt generally indicates exploratory work, safety, dosing, and early signal detection, and is common among research-forward sponsors that seed many early programs. Phase 4 entries, when present, track interventions already in real-world use and typically focus on long-term safety, effectiveness across subgroups, or formulation comparisons.

That distribution is a quick read of where the organization concentrates its research attention; it does not imply product availability, market share, or any clinical endorsement. All numbers on this page come from ClinicalTrials.gov maintained by the National Library of Medicine, and counts can shift as new studies are registered or existing ones update their status. This information is provided for reference and educational purposes only, not as medical, investment, or regulatory advice, verify current details directly with ClinicalTrials.gov before relying on any figure here.

Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainTrial Editorial

Every figure on PlainTrial is rendered directly from the ClinicalTrials.gov registry, no number is typed in by an editor. This page aggregates every registered trial from this sponsor, live from the dataset. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.