Alendronate for Osteonecrosis in Adults With Sickle Cell Disease

NCT ID: NCT06016634

Last Updated: 2026-01-30

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

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2026-02-09

Study Completion Date

2027-12-31

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

A prospective, single-arm, intervention study of oral alendronate in adults with sickle cell disease and osteonecrosis

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

The investigators hypothesize that adults with sickle cell disease (SCD) and osteonecrosis of the femoral (hip) and/or humeral (shoulder) heads will tolerate oral alendronate 70 mg administered once a week x 24 weeks (6 months). In addition to collecting safety and tolerability data on alendronate in study participants, the investigators will also measure the preliminary efficacy of alendronate using changes in the Adult Sickle Cell Quality of Life Measurement System (ASCQ-Me) Pain Impact scores from baseline to 3-months and 6-months after alendronate initiation. Serum and urine specimen will also be collected to assess changes in bone biomarkers at baseline, 3-months, and 6-months.

The investigators plan to recruit 24 adults with SCD from the University of California Davis Medical Center to this single-arm, open label, interventional study. The investigators anticipate enrolling 1-2 participants per month between Sep 2024- Dec 2025.

The study endpoints are summarized below:

* To determine the recruitment and retention rates of adults with SCD and osteonecrosis enrolled in this prospective, single-arm, open label alendronate interventional study
* To measure the safety, tolerability, and preliminary efficacy of oral alendronate in adults with SCD-related osteonecrosis over a 6-month treatment duration
* To measure changes in bone biomarkers in the serum and urine of study participants not receiving chronic red blood cell transfusions at 3 time points: baseline, 3-months, and 6-months after initiation of alendronate

The investigators' goal is to complete primary data analysis by May 2026.

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Sickle Cell Disease Sickle Cell Anemia Osteonecrosis Ischemic Necrosis Avascular Necrosis

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Allocation Method

NA

Intervention Model

SINGLE_GROUP

Prospective cohort of 30 adults with sickle cell disease and hip osteonecrosis
Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Alendronate group

Single-arm prospective cohort of 30 adult with SCD

Group Type EXPERIMENTAL

Alendronate Sodium

Intervention Type DRUG

Administer oral alendronate 70 mg once a week x 24 weeks to all study participants

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Alendronate Sodium

Administer oral alendronate 70 mg once a week x 24 weeks to all study participants

Intervention Type DRUG

Other Intervention Names

Discover alternative or legacy names that may be used to describe the listed interventions across different sources.

alendronate tablet oral alendronate Fosamax Binosto

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Age 18-80 years with SCD (any genotype, confirmed by hemoglobin electrophoresis or high performance liquid chromatography)
* Ability to provide written informed consent
* Ability to lay on a dual-energy X-ray absorptiometry (DXA) scanner
* Negative urine pregnancy test for anyone of childbearing potential at study entry

Exclusion Criteria

* Pregnant women
* Adults unable to consent
* Individuals who are not yet adults (infants, children, teenagers)
* Prisoners
* Hospitalizations (for any cause) within 2 weeks of study entry
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

Meet the organizations funding or collaborating on the study and learn about their roles.

National Heart, Lung, and Blood Institute (NHLBI)

NIH

Sponsor Role collaborator

Doris Duke Charitable Foundation

OTHER

Sponsor Role collaborator

University of California, Davis

OTHER

Sponsor Role lead

Responsible Party

Identify the individual or organization who holds primary responsibility for the study information submitted to regulators.

Responsibility Role SPONSOR

Principal Investigators

Learn about the lead researchers overseeing the trial and their institutional affiliations.

Oyebimpe O Adesina, MD, MS

Role: PRINCIPAL_INVESTIGATOR

UC Davis School of Medicine

Locations

Explore where the study is taking place and check the recruitment status at each participating site.

UC Davis Comprehensive Cancer Center

Sacramento, California, United States

Site Status RECRUITING

Countries

Review the countries where the study has at least one active or historical site.

United States

Central Contacts

Reach out to these primary contacts for questions about participation or study logistics.

Leyla Y Teos, PhD

Role: CONTACT

(916) 460-2749

Facility Contacts

Find local site contact details for specific facilities participating in the trial.

Leyla Y Teos, PhD

Role: primary

916-460-2749

Oyebimpe O Adesina, MD, MS

Role: backup

(916) 703-5166

Other Identifiers

Review additional registry numbers or institutional identifiers associated with this trial.

5K23HL148310

Identifier Type: NIH

Identifier Source: secondary_id

View Link

2020095

Identifier Type: OTHER_GRANT

Identifier Source: secondary_id

1693339

Identifier Type: -

Identifier Source: org_study_id

More Related Trials

Additional clinical trials that may be relevant based on similarity analysis.

Network Osteoporosis Study
NCT00209469 UNKNOWN PHASE2/PHASE3