Targeting Cellular Senescence With Senolytics to Improve Skeletal Health in Older Humans

• ClinicalTrials.gov Identifier: NCT04313634
• Recruitment Status: Recruiting
• First Posted: March 18, 2020
• Last Update Posted: July 21, 2020
• Sponsor: Sundeep Khosla, M.D.
• Information provided by (Responsible Party): Sundeep Khosla, M.D., Mayo Clinic

Study Description

Brief Summary:

To determine if senolytic drugs reduce senescent cell burden and reduce bone resorption markers/increase bone formation markers in elderly women.

Condition or disease	Intervention/treatment	Phase
Healthy	Drug: Dasatinib; Drug: Quercetin; Drug: Fisetin	Phase 2

Study Design

• Study Type: Interventional (Clinical Trial)
• Estimated Enrollment: 120 participants
• Allocation: Randomized
• Intervention Model: Parallel Assignment
• Masking: None (Open Label)
• Primary Purpose: Supportive Care
• Official Title: Targeting Cellular Senescence With Senolytics to Improve Skeletal Health in Older Humans: A Phase 2, Single-Center, 20-week, Open-Label, Randomized Controlled Trial.
• Actual Study Start Date: June 9, 2020
• Estimated Primary Completion Date: April 30, 2022
• Estimated Study Completion Date: March 31, 2023

Arms and Interventions

Arm	Intervention/treatment
Experimental: Dasatinib plus Quercetin Treatment Goup; Subjects will receive Dasatinib (D; 100 mg for two days) plus Quercetin (Q; 1000 mg total daily for three consecutive days taken orally on an intermittent schedule (starting every 28 days) with no-therapy periods in between dosing regimens, repeated every 28 days over 20 weeks, resulting in five total dosing periods throughout the entire intervention	Drug: Dasatinib; Dasatinib will be supplied as 100 mg tablet white to off-white, biconvex, oval, film- coated; Other Name: Sprycel; Drug: Quercetin; Quercetin will be supplied as quercetin phytosome (sophora japonica concentrate (leaf) / phosphatidylcholine complex from Sunflower) 250 mg
Experimental: Fisetin Treatment Group; Subjects will receive Fisetin (F; ~20 mg/kg/day for three consecutive days) taken orally on an intermittent schedule (starting every 28 days) with no-therapy periods in between dosing regimens, repeated every 28 days over 20 weeks, resulting in five total dosing periods throughout the entire intervention	Drug: Fisetin; Fisetin will be supplied in 100 mg capsules to be administered orally
No Intervention: Untreated Control Group; Subjects will not receive any intervention

Outcome Measures

Primary Outcome Measures :

1. Percent Changes in C-terminal telopeptide of type I collagen [CTX] [ Time Frame: Baseline, 20 weeks ]
   Percent changes in serum bone turnover markers C-terminal telopeptide of type I collagen [CTX]
2. Percent Changes in amino-terminal propeptide of type I collagen [P1NP] [ Time Frame: Baseline, 20 weeks ]
   Percent changes in serum bone turnover markers amino-terminal propeptide of type I collagen [P1NP]

Eligibility Criteria

• Ages Eligible for Study: 70 Years and older (Older Adult)
• Sexes Eligible for Study: Female
• Accepts Healthy Volunteers: Yes

Criteria

Inclusion Criteria:

• Able and willing to provide informed consent.
• Normal postmenopausal women
• Aged ≥70 years

Exclusion Criteria:

• Hemoglobin A1c ≥8.0%
• Abnormal screening labs (see below)
• Presence of significant liver or kidney disease
• Presence of heart failure
• Malignancy (including myeloma)
• Malabsorption, including gastric bypass / reduction, Crohn's disease
• Subjects who are diabetic and on insulin, sulfonylureas or SGLT2 inhibitors. Diabetes alone or Metformin use are not grounds for exclusion.
• Hyperthyroidism
• Acromegaly
• Cushing's syndrome
• Hypopituitarism
• Subjects with a fracture within the past six months

• Undergoing treatment with any medications that affect bone turnover, including the following:

  • adrenocorticosteroids (> 3 months at any time or > 10 days within the previous yr), anticonvulsant therapy (within the previous year),
  • calcium supplementation of > 1200 mg/d (within the preceding 3 months),
  • bisphosphonates (within the past 3 yrs),
  • denosumab,
  • estrogen (E) therapy or treatment with a selective E receptor modulator, or teriparatide (within the past yr)
  • β-blockers
• QTc >450 msec
• Inability to provide consent
• Inability to tolerate oral medication
• eGFR<30 ml/min/1.73 m2
• Subjects on therapeutic doses of anti-coagulants (e.g. warfarin, heparin, low molecular weight heparin, factor Xa inhibitors, etc)
• Subjects with hypovitaminosis D (25-hydroxyvitamin D [25(OH)D] <20 ng/ml, whose level does not improve above 20 ng/ml after two courses of 8-week treatment of 1000 IU/d of Vitamin D. They will be referred to their primary provider should this occur.
• Subjects taking anti-arrhythmic medications known to cause QTc prolongation
• Subjects taking potentially senolytic agents within the last 6 months: Fisetin, Quercetin, Luteolin, Dasatinib, Piperlongumine, or Navitoclax
• Subjects currently taking drugs that induce cellular senescence: alkylating agents, anthracyclines, platins, other chemotherapy
• Subjects taking H2 antagonists
• Tyrosine kinase inhibitor therapy
• Subjects not having a PBTL p16INK4a mRNA expression level >95 percentile of young female controls (this cut-off is depicted by the dotted line in Fig. 6)
• Known hypersensitivity or allergy to Dasatinib, Quercetin, or Fisetin
• Subjects taking the following antimicrobial agents: Aminoglycosides, Azole antifungals (fluconazole, miconazole, voriconazole, itraconazole), Macrolides (clarithromycin, erythromycin), Antivirals (nelfinavir, indinavir, saquinavir, ritonavir, elbasvir/grazoprevir), Rifampin
• Subjects taking the following other drugs if they cannot be held for at least 2 days before and during administration of Fisetin: digoxin, lithium, all statins, repaglidine, bosentan, gemfibrozil, olmesartan, enalapril, valsartan, methotrexate, corticosteroids, eluxadoline, eltrombopag, nitroglycerin, pioglitazone, glyburide, enzalutamide, ezetimibe, colchicine, imatinib, cyclosporine, tacolimus, sirolimus, carbamazepine, flecainide, phenytoin, phenobarbital, rifampicin, theophylline, warfarin, heparin, full dose ASA, clopidogrel, celecoxib, desipramine, thioridazine, venlafaxine, tizanidine, atomoxetine, voriconazole, citalopram, diazepam, escitalopram, propranolol, clozapine, cyclobenzaprine, mexiletine, olanzapine, ondansetron, riluzole,
• Subjects taking medications that are sensitive to substrates or substrates with a narrow therapeutic range for CYP3A4, CYP2C8, CYP2C9, or CYP2D6 or strong inhibitors or inducers of CYP3A4 (e.g., cyclosporine, tacrolimus or sirolimus). If antifungals are absolutely necessary from an infectious disease perspective, then they will be allowed only if the levels are therapeutic.
• Subjects taking strong inhibitors of CYP3A4
• Subjects on antiplatelet agents (Clopidogrel [Plavix]; Dipyridamole + Asprin [Aggrenox]; Ticagrelor [Brilinta]; Prasugrel [Effient]; Ticlopidine [Ticlid] or Other) who are unable or unwilling to reduce or hold therapy prior to and during the study drug dosing periods. Subjects may continue their previous regimen between study drug dosing periods.
• Subjects on quinolone antibiotic therapy for treatment or for prevention of infections within ten days.
• Subjects taking proton pump inhibitors and unwilling to discontinue therapy for two days before and during the study drug dosing periods.
• Subjects with clinically evident fluid retention
• Subjects with evidence of right heart strain on ECG
• Subjects with a history of pulmonary hypertension
• Subjects with an abnormal Complete Blood Count (clinically insignificant changes would be acceptable based on the judgement of the investigators)
• Presence of any condition the Investigator believes would place the subject at risk or would preclude the subject from successfully completing all aspects of the trial.

Contacts and Locations

Contacts

Contact: Tammie Volkman, RN; 507-538-6023; volkman.tammie@mayo.edu

Contact: Joshua Farr, PhD; farr.joshua@mayo.edu

Locations

United States, Minnesota

Mayo Clinic in Rochester; Recruiting

Rochester, Minnesota, United States, 55905

Sponsors and Collaborators

Sundeep Khosla, M.D.

Investigators

• Principal Investigator: Sundeep Khosla, MD; Mayo Clinic

More Information

Additional Information:

Mayo Clinic Clinical Trials 

• Responsible Party: Sundeep Khosla, M.D., Principal Investigator, Mayo Clinic
• ClinicalTrials.gov Identifier: NCT04313634
• Other Study ID Numbers: 18-010546
• First Posted: March 18, 2020
• Last Update Posted: July 21, 2020
• Last Verified: July 2020

Individual Participant Data (IPD) Sharing Statement:

• Plan to Share IPD: No

• Studies a U.S. FDA-regulated Drug Product: Yes
• Studies a U.S. FDA-regulated Device Product: No

Additional relevant MeSH terms:

Dasatinib; Quercetin; Antineoplastic Agents; Protein Kinase Inhibitors; Enzyme Inhibitors; Molecular Mechanisms of Pharmacological Action; Antioxidants; Protective Agents; Physiological Effects of Drugs