FBXO43

gene
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Also known as Fbx43

Summary

FBXO43 (F-box protein 43, HGNC:28521) is a protein-coding gene on chromosome 8q22.2, encoding F-box only protein 43 (Q4G163). Required to establish and maintain the arrest of oocytes at the second meiotic metaphase until fertilization.

Members of the F-box protein family, such as FBXO43, are characterized by an approximately 40-amino acid F-box motif. SCF complexes, formed by SKP1 (MIM 601434), cullin (see CUL1; MIM 603134), and F-box proteins, act as protein-ubiquitin ligases. F-box proteins interact with SKP1 through the F box, and they interact with ubiquitination targets through other protein interaction domains (Jin et al., 2004 [PubMed 15520277]).

Source: NCBI Gene 286151 — RefSeq curated summary.

At a glance

  • Gene–disease (curated): spermatogenic failure 64 (Limited, GenCC) — +1 more curated relationship
  • Clinical variants (ClinVar): 106 total — 4 pathogenic, 1 likely-pathogenic
  • Phenotypes (HPO): 15
  • MANE Select transcript: NM_001029860

Identifiers

Gene identifiers

FieldValue
HGNC IDHGNC:28521
Approved symbolFBXO43
NameF-box protein 43
Location8q22.2
Locus typegene with protein product
StatusApproved
AliasesFbx43
Ensembl geneENSG00000156509
Ensembl biotypeprotein_coding
OMIM609110
Entrez286151

Gene structure

Transcript identifiers

Ensembl transcripts: 3 — 1 protein_coding, 1 nonsense_mediated_decay, 1 retained_intron

ENST00000428847, ENST00000517806, ENST00000520987

RefSeq mRNA: 1 — MANE Select: NM_001029860 NM_001029860

CCDS: CCDS47904

Canonical transcript exons

ENST00000428847 — 5 exons

ExonStartEnd
ENSE00002094631100145051100145817
ENSE00002126706100133351100134050
ENSE00003478744100140683100142168
ENSE00003528195100137565100137667
ENSE00003560327100134161100134364

Expression profiles

Bgee: expression breadth ubiquitous, 127 present calls, max score 95.79.

FANTOM5 (CAGE): breadth broad, TPM avg 0.8627 / max 61.3525, expressed in 406 samples.

FANTOM5 promoters (1 alternative TSS)

Promoter IDTPM avgSamples expressed
941220.8627406

Top tissues by expression

234 total, by Bgee expression score (0-100, higher = more expressed):

TissueAnatomy IDExpression scoreQuality
secondary oocyteCL:000065595.79gold quality
oocyteCL:000002394.67gold quality
male germ line stem cell (sensu Vertebrata) in testisCL:0000089 ∩ UBERON:000047378.04gold quality
ventricular zoneUBERON:000305375.22gold quality
spermCL:000001972.24gold quality
primordial germ cell in gonadCL:0000670 ∩ UBERON:000099171.61gold quality
right testisUBERON:000453471.58gold quality
skeletal muscle tissue of rectus abdominisUBERON:000451171.49gold quality
testisUBERON:000047371.19gold quality
left testisUBERON:000453371.03gold quality
ganglionic eminenceUBERON:000402370.65gold quality
epithelial cell of pancreasCL:000008369.59gold quality
upper arm skinUBERON:000426369.15gold quality
mucosa of paranasal sinusUBERON:000503067.43gold quality
myocardiumUBERON:000234967.27gold quality
adult organismUBERON:000702367.16gold quality
cardiac muscle of right atriumUBERON:000337966.26gold quality
left ventricle myocardiumUBERON:000656665.87gold quality
thymusUBERON:000237065.02gold quality
trabecular bone tissueUBERON:000248364.69silver quality
stromal cell of endometriumCL:000225564.67gold quality
quadriceps femorisUBERON:000137763.81gold quality
vastus lateralisUBERON:000137963.39gold quality
esophagus squamous epitheliumUBERON:000692062.69gold quality
colonic epitheliumUBERON:000039762.59gold quality
bone marrowUBERON:000237161.76gold quality
cartilage tissueUBERON:000241861.70gold quality
pancreatic ductal cellCL:000207961.50silver quality
gingival epitheliumUBERON:000194961.42gold quality
lymph nodeUBERON:000002960.93gold quality

Single-cell (SCXA)

Detected in 1 experiment(s), a significant marker in 0.

ExperimentMarker?Max mean expression
E-ANND-3no4.21

Regulation

Is transcription factor: no

Upstream regulators (CollecTRI, top): E2F1, E2F2, E2F3

miRNA regulators (miRDB)

61 targeting FBXO43, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):

miRNAMax scoreAvg scoremiRNA target_count
HSA-MIR-5692B100.0071.322622
HSA-MIR-5692C100.0071.322622
HSA-LET-7A-3P100.0074.033932
HSA-LET-7B-3P100.0074.083913
HSA-LET-7F-1-3P100.0074.023928
HSA-MIR-98-3P100.0074.083907
HSA-MIR-1277-5P100.0073.955056
HSA-MIR-3163100.0077.238605
HSA-MIR-5011-5P100.0083.465820
HSA-MIR-366299.9973.825684
HSA-MIR-196A-1-3P99.9972.152772
HSA-MIR-6870-5P99.9968.552115
HSA-MIR-428299.9975.366408
HSA-MIR-186-5P99.9970.833707
HSA-MIR-477599.9875.006394
HSA-MIR-569699.9872.364487
HSA-MIR-4723-5P99.9768.702034
HSA-MIR-569899.9768.492029
HSA-MIR-7111-5P99.9768.482062
HSA-MIR-6888-3P99.9765.951170
HSA-MIR-590-3P99.9674.346478
HSA-MIR-4666A-3P99.9671.713434
HSA-MIR-548AJ-3P99.9673.385345
HSA-MIR-548X-3P99.9673.385345
HSA-MIR-570-3P99.9672.414910
HSA-MIR-1250-3P99.9670.044038
HSA-MIR-548J-3P99.9472.614881
HSA-MIR-141-3P99.9472.792421
HSA-MIR-200A-3P99.9472.682420
HSA-MIR-548AE-3P99.9372.664867

Literature-anchored findings (GeneRIF, showing 9)

  • Cdc2 and Mos regulate Emi2 stability to promote the meiosis I-meiosis II transition (PMID:18550795)
  • The mutation in FBXO43 is a causative factor of male infertility and teratozoospermia. (PMID:30878252)
  • EMI2 expression as a poor prognostic factor in patients with breast cancer. (PMID:32253818)
  • FBXO43 variants in patients with female infertility characterized by early embryonic arrest. (PMID:34052850)
  • A homozygous loss-of-function mutation in FBXO43 causes human non-obstructive azoospermia. (PMID:34595750)
  • Downregulation of the FBXO43 gene inhibits tumor growth in human breast cancer by limiting its interaction with PCNA. (PMID:34645483)
  • Association between F-box-only protein 43 overexpression and hepatocellular carcinoma pathogenesis and prognosis. (PMID:36710413)
  • Clinical significance of FBXO43 in hepatocellular carcinoma and its impact on tumor cell proliferation, migration and invasion. (PMID:37250703)
  • FBXO43 promotes cell cycle progression in cancer cells through stabilizing SKP2. (PMID:38604312)

Cross-species orthologs

4 orthologs

OrganismSymbolGene ID
danio_reriofbxo43ENSDARG00000104186
mus_musculusFbxo43ENSMUSG00000048230
rattus_norvegicusFbxo43ENSRNOG00000010459
drosophila_melanogasterRca1FBGN0017551

Paralogs (1): FBXO5 (ENSG00000112029)

Protein

Protein identifiers

F-box only protein 43Q4G163 (reviewed: Q4G163)

Alternative names: Endogenous meiotic inhibitor 2

All UniProt accessions (2): Q4G163, E5RHI5

UniProt curated annotations — full annotation on UniProt →

Function. Required to establish and maintain the arrest of oocytes at the second meiotic metaphase until fertilization. Acts by inhibiting the anaphase-promoting complex/cyclosome (APC/C) ubiquitin ligase. Probably recognizes and binds to some phosphorylated proteins and promotes their ubiquitination and degradation. Plays a vital role in modulating the ubiquitilation of CCNB1 and CDK1 during gametogenesis.

Subunit / interactions. Part of a SCF (SKP1-cullin-F-box) protein ligase complex. According to PubMed:34595750 interaction with SKP1 does not occur. Interacts with ANAPC2; the interaction is direct, ANAPC4, CDC16, CDC23; the interaction is direct, ANAPC10; the interaction is direct and CDC26, during spermatogenesis. May interact with CDC20.

Tissue specificity. Expressed in the testis.

Post-translational modifications. Phosphorylated on Ser-76, Thr-234 and Ser-334 in response to calcium, which is a prerequisite for ubiquitination and proteasomal degradation. Ubiquitinated in response to calcium, which promotes proteasomal degradation.

Disease relevance. Oocyte/zygote/embryo maturation arrest 12 (OZEMA12) [MIM:619697] An autosomal recessive disorder characterized by infertility due to early embryonic arrest. The disease is caused by variants affecting the gene represented in this entry. Spermatogenic failure 64 (SPGF64) [MIM:619696] An autosomal recessive male infertility disorder characterized by oligoasthenoteratozoospermia or non-obstructive azoospermia. Some patients have absent sperm due to meiotic arrest at the diplotene stage. Others show low sperm counts and reduced progressive motility. The disease is caused by variants affecting the gene represented in this entry.

Pathway. Protein modification; protein ubiquitination.

RefSeq proteins (1): NP_001025031* (*=MANE)

Domains & families (InterPro)

IDNameType
IPR001810F-box_domDomain
IPR002867IBR_domDomain
IPR044064ZF_ZBRDomain
IPR047147FBX5_43Family

Pfam: PF00646

UniProt features (30 total): binding site 8, sequence variant 8, modified residue 3, region of interest 3, compositionally biased region 3, mutagenesis site 2, chain 1, domain 1, zinc finger region 1

Structure

Experimental structures (PDB)

0 structures.

Predicted structure (AlphaFold)

ModelpLDDTFraction very-high
AF-Q4G163-F152.850.14

Functional residue map

Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.

Ligand- & substrate-binding residues (8): 643; 658; 663; 668; 671; 676; 681; 640

Post-translational modifications (3): 76, 234, 334

Mutagenesis-validated functional residues (2):

PositionPhenotype
75–76impairs ubiquitination and degradation in response to calcium.
333–334impairs ubiquitination and degradation in response to calcium.

Function

Pathways and Gene Ontology

Reactome pathways

0 pathways

MSigDB gene sets: 141 (showing top): GOBP_NEGATIVE_REGULATION_OF_REPRODUCTIVE_PROCESS, GOBP_REGULATION_OF_NUCLEAR_DIVISION, GOBP_REGULATION_OF_MEIOTIC_NUCLEAR_DIVISION, GOBP_MACROMOLECULE_CATABOLIC_PROCESS, GOBP_NEGATIVE_REGULATION_OF_MEIOTIC_NUCLEAR_DIVISION, GOBP_REGULATION_OF_MEIOTIC_CELL_CYCLE, GOBP_NEGATIVE_REGULATION_OF_CELLULAR_COMPONENT_ORGANIZATION, GOBP_RESPONSE_TO_NERVE_GROWTH_FACTOR, CATTTCA_MIR203, GOBP_NEGATIVE_REGULATION_OF_MEIOTIC_CELL_CYCLE, GOBP_ORGANELLE_FISSION, GOBP_NEGATIVE_REGULATION_OF_CELL_CYCLE_PROCESS, GOBP_NEGATIVE_REGULATION_OF_CELL_CYCLE, GOBP_REGULATION_OF_CELL_CYCLE, GOBP_MITOTIC_NUCLEAR_DIVISION

GO Biological Process (6): regulation of mitotic nuclear division (GO:0007088), negative regulation of cell cycle process (GO:0010948), protein ubiquitination (GO:0016567), negative regulation of meiotic nuclear division (GO:0045835), meiotic cell cycle (GO:0051321), cellular response to nerve growth factor stimulus (GO:1990090)

GO Molecular Function (3): zinc ion binding (GO:0008270), protein binding (GO:0005515), metal ion binding (GO:0046872)

GO Cellular Component (1): nucleus (GO:0005634)

GO top-level categories

Rollup of top GO terms by namespace:

CategoryTerms
regulation of cell cycle process2
meiotic nuclear division2
regulation of mitotic cell cycle1
regulation of nuclear division1
mitotic nuclear division1
cell cycle process1
negative regulation of cell cycle1
protein modification by small protein conjugation1
negative regulation of cell cycle process1
regulation of meiotic nuclear division1
negative regulation of meiotic cell cycle1
negative regulation of nuclear division1
cell cycle1
sexual reproduction1
reproductive process1
cellular response to growth factor stimulus1
response to nerve growth factor1
transition metal ion binding1
binding1
cation binding1
intracellular membrane-bounded organelle1

Protein interactions and networks

STRING

1796 interactions, top by confidence (×1000):

Protein AProtein BPartner UniProtScore
FBXO43CDC20Q12834803
FBXO43GMNNO75496683
FBXO43SKP1P34991605
FBXO43CCNA1P78396595
FBXO43EVI5O60447594
FBXO43PLK1P53350584
FBXO43BTRCQ9Y297580
FBXO43RPS6KA1Q15418579
FBXO43CCNFP41002571
FBXO43WEE2P0C1S8569
FBXO43FBXO47Q5MNV8563
FBXO43PTTG2Q9NZH5543
FBXO43ANAPC10Q9UM13507
FBXO43ZFP36P26651485
FBXO43PTTG1O95997476

IntAct

9 interactions, top by confidence:

ABTypeScore
SKP1FBXO43psi-mi:“MI:0915”(physical association)0.560
PPP2R1AFBXO43psi-mi:“MI:0915”(physical association)0.560
FBXO43SLC25A12psi-mi:“MI:0915”(physical association)0.400
MecomESYT2psi-mi:“MI:0914”(association)0.350
SKP1FBXO43psi-mi:“MI:0915”(physical association)0.000
PPP2R1AFBXO43psi-mi:“MI:0915”(physical association)0.000

BioGRID (84): CDC27 (Affinity Capture-Western), FBXO43 (Affinity Capture-Western), FBXO43 (Affinity Capture-MS), FBXO43 (Two-hybrid), FBXO43 (Two-hybrid), FBXO43 (Proximity Label-MS), NAMPT (Affinity Capture-MS), EZR (Affinity Capture-MS), ACTN4 (Affinity Capture-MS), VCP (Affinity Capture-MS), FDPS (Affinity Capture-MS), CD44 (Affinity Capture-MS), ADRM1 (Affinity Capture-MS), CDC37 (Affinity Capture-MS), DLST (Affinity Capture-MS)

ESM2 similar proteins: A0JM98, A1L1H3, A4IGY9, A5D7P0, A5PLL1, A7MBD1, B2RWW0, D3ZF42, O75113, O88866, P12525, P30304, P30305, P30306, P30307, P30308, P30309, P30310, P30311, P48964, P48965, P48966, P48967, P48968, P57058, Q29029, Q4G163, Q56NI9, Q5QJC4, Q5SW75, Q66JT0, Q68UT7, Q6GQJ2, Q6IE82, Q6P1H6, Q6PCM1, Q6PJP8, Q6S7F2, Q6YI93, Q76I76

Diamond homologs: Q0V967, Q28GK6, Q4G163, Q4V7W2, Q66H04, Q7TSG3, Q8AXF4, Q8CDI2, Q90Z80, Q9UKT4

SIGNOR signaling

2 interactions.

AEffectBMechanism
CAMK2G“down-regulates activity”FBXO43phosphorylation
CAMK2A“up-regulates activity”FBXO43phosphorylation

Disease & clinical

Clinical variants and AI predictions

ClinVar

106 variants total. Per-class counts are floors (≥ shown; pagination cap):

ClassificationCount (floor)
Pathogenic4
Likely pathogenic1
Uncertain significance80
Likely benign11
Benign1

Top pathogenic / likely-pathogenic (5)

Variant IDHGVSClassification
1332891NM_001029860.4(FBXO43):c.1991G>A (p.Gly664Asp)Pathogenic
1332892NM_001029860.4(FBXO43):c.1747C>T (p.Gln583Ter)Pathogenic
1332893NM_001029860.4(FBXO43):c.1490_1497dup (p.Glu500delinsSerTer)Pathogenic
1332894NM_001029860.4(FBXO43):c.154del (p.Asp52fs)Pathogenic
4526317GRCh38/hg38 8q22.2(chr8:100138992-100172318)x1Likely pathogenic

SpliceAI

1178 predictions. Top by Δscore:

VariantEffectΔscore
8:100136145:T:TAdonor_gain1.0000
8:100137666:CA:Cacceptor_gain1.0000
8:100137668:C:CCacceptor_gain1.0000
8:100139509:CTAA:Cdonor_gain1.0000
8:100139515:T:TAdonor_gain1.0000
8:100137559:CATTA:Cdonor_gain0.9900
8:100137664:AACA:Aacceptor_gain0.9900
8:100137667:AC:Aacceptor_loss0.9900
8:100137669:T:Gacceptor_loss0.9900
8:100139508:A:ACdonor_gain0.9900
8:100139509:C:CCdonor_gain0.9900
8:100139512:A:ACdonor_gain0.9900
8:100139513:C:CCdonor_gain0.9900
8:100139516:C:Adonor_gain0.9900
8:100137558:A:ACdonor_gain0.9800
8:100137559:C:CCdonor_gain0.9800
8:100137560:ATTAC:Adonor_loss0.9800
8:100137561:TTACC:Tdonor_loss0.9800
8:100137562:TA:Tdonor_loss0.9800
8:100137563:A:ATdonor_loss0.9800
8:100137564:C:Adonor_loss0.9800
8:100137663:AAACA:Aacceptor_gain0.9800
8:100137665:ACA:Aacceptor_gain0.9800
8:100137666:CAC:Cacceptor_gain0.9800
8:100145316:T:Cdonor_gain0.9800
8:100145320:AATAT:Adonor_gain0.9800
8:100145363:T:TAdonor_gain0.9800
8:100145364:C:Adonor_gain0.9800
8:100134362:CCC:Cacceptor_gain0.9700
8:100134363:CCC:Cacceptor_gain0.9700

AlphaMissense

4658 scored. Top likely-pathogenic:

VariantProtein changeam_pathogenicity
8:100133957:A:GC658R0.998
8:100133989:G:TA647D0.998
8:100134011:A:GC640R0.998
8:100137645:A:GW532R0.998
8:100137645:A:TW532R0.998
8:100133928:A:CF667L0.997
8:100133928:A:TF667L0.997
8:100133930:A:GF667L0.997
8:100133927:A:GC668R0.996
8:100133955:A:CC658W0.996
8:100133956:C:GC658S0.996
8:100133957:A:TC658S0.996
8:100134002:A:GC643R0.996
8:100134046:G:TA628D0.996
8:100140752:A:GL501S0.996
8:100133918:A:GC671R0.995
8:100134001:C:GC643S0.995
8:100134002:A:TC643S0.995
8:100133942:A:GC663R0.994
8:100134009:G:CC640W0.994
8:100133925:A:CC668W0.993
8:100134023:C:GA636P0.993
8:100137652:G:CS529R0.993
8:100137652:G:TS529R0.993
8:100137654:T:GS529R0.993
8:100133929:A:GF667S0.992
8:100133941:C:TC663Y0.992
8:100133956:C:TC658Y0.992
8:100133926:C:TC668Y0.991
8:100133990:C:GA647P0.991

dbSNP variants (sampled 300 via entrez): RS1000015466 (8:100137133 A>G), RS1000042195 (8:100142221 T>C), RS1000088447 (8:100137378 C>G,T), RS1000444093 (8:100138359 T>C), RS1000580474 (8:100145440 G>A), RS1000628372 (8:100143069 T>G), RS1000646301 (8:100144023 T>C,G), RS1000663325 (8:100149412 G>A,C), RS1000913049 (8:100142486 A>T), RS1000945018 (8:100144353 A>G), RS1000995077 (8:100150767 C>G), RS1001088539 (8:100135708 G>A), RS1001350664 (8:100143946 A>G), RS1001603474 (8:100138987 T>A,G), RS1001845567 (8:100137741 T>C)

Disease associations

OMIM: gene MIM:609110 | disease phenotypes: MIM:619696, MIM:619697

GenCC curated gene-disease

DiseaseClassificationInheritance
spermatogenic failure 64LimitedUnknown
oocyte maturation defect 12LimitedUnknown

Mondo (3): spermatogenic failure 64 (MONDO:0030522), oocyte maturation defect 12 (MONDO:0030523), male infertility (MONDO:0005372)

Orphanet (0):

HPO phenotypes

15 total (15 of 15 shown, HPO-id order):

HPOTerm
HP:0000007Autosomal recessive inheritance
HP:0000027Azoospermia
HP:0000118Phenotypic abnormality
HP:0000798Oligozoospermia
HP:0000837Increased circulating gonadotropin level
HP:0003251Male infertility
HP:0008222Female infertility
HP:0008669Abnormal spermatogenesis
HP:0008734Decreased testicular size
HP:0011462Young adult onset
HP:0011961Non-obstructive azoospermia
HP:0011962Obstructive azoospermia
HP:0012865Abnormal sperm head morphology
HP:0033335Abnormal preimplantation embryonic development
HP:0034011Reduced progressive sperm motility

GWAS associations

0 associations (top):

MeSH disease descriptors (1)

DescriptorNameTree numbers
D007248Infertility, MaleC12.100.500.430; C12.100.750.700; C12.200.294.430

Drugs & pharmacology

Drug and pharmacology data

Is drug target: no

PharmGKB: 1 entry (VIP=true, CPIC=false)

CTD chemical–gene interactions

24 total (human), top 24 by PubMed support.

ChemicalActions (top 5)PubMed papers
sodium arseniteaffects expression, decreases expression, increases expression3
belinostatdecreases expression, affects cotreatment2
Valproic Acidaffects expression, increases expression2
methyleugenoldecreases expression1
propionaldehydedecreases expression1
pirinixic acidaffects binding, decreases expression, increases activity1
ethyl-p-hydroxybenzoatedecreases expression1
trichostatin Aincreases expression1
butyraldehydedecreases expression1
4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamideaffects cotreatment, decreases expression1
abrinedecreases expression1
dorsomorphinaffects cotreatment, decreases expression1
Leflunomidedecreases expression1
Acetaminophenincreases expression1
Benzo(a)pyreneaffects methylation1
Cadmiumincreases expression1
Estradioldecreases expression1
N-Nitrosopyrrolidinedecreases expression1
Tetrachlorodibenzodioxinaffects expression1
Tobacco Smoke Pollutiondecreases expression1
Tretinoindecreases expression1
Cyclosporinedecreases expression1
Aflatoxin B1decreases expression1
Okadaic Aciddecreases expression1

Clinical trials (associated diseases)

125 trials via MONDO — disease-level, not drug-specific.

TrialPhaseStatusTitle
NCT02202382PHASE4COMPLETEDEffects of Korean Red Ginseng on Male Infertility
NCT02204826PHASE4COMPLETEDEffects of Korean Red Ginseng on Semen Parameters in Male Infertility Patients: a Randomized, Placebo-controlled, Double-blind Clinical Study
NCT03802864PHASE4COMPLETEDPost-operative Pain Control of Testicular Sperm Extraction Using Liposomal Bupivacaine
NCT06100432PHASE4ACTIVE_NOT_RECRUITINGEffect of Eurycoma Longifolia (DLBS5055) and Multivitamins (Vitamin C+Vitamin E+ β-carotene) for Infertile Males
NCT07523022PHASE4ENROLLING_BY_INVITATIONComparison of the Effect of Gonadotropin and Clomiphene Citrate Treatment on Sperm Parameters and the Outcome of Assisted Reproductive Procedures in Subfertile Men Based on the APHRODITE Groups
NCT00975117PHASE3COMPLETEDSpermotrend in the Treatment of Male Infertility
NCT01407432PHASE3COMPLETEDImpact of Folates in the Care of the Male Infertility
NCT01895816PHASE3COMPLETEDHerbal Tonic Fertile Supplement(ZO2C5)
NCT02605070PHASE3TERMINATEDPilot Study on the Effects of FSH Treatment on the Epigenetic Characteristics of Spermatozoa in Infertile Patients With Severe Oligozoospermia
NCT07402759PHASE3ACTIVE_NOT_RECRUITINGImpact of tdrd9 Gene Mutations in the Therapeutic Response to L-carnitine in Oligoasthenozoospermic Men
NCT01880086PHASE2COMPLETEDClomiphene Citrate for the Treatment of Low Testosterone Associated With Chronic Opioid Pain Medication Administration
NCT02061384PHASE2COMPLETEDRA-2 13-cis Retinoic Acid (Isotretinoin)
NCT02421887PHASE2COMPLETEDMales, Antioxidants, and Infertility Trial
NCT05200663PHASE2UNKNOWNEfficacy Comparison of Tamoxifen and Tamoxifen With Antioxidants on Semen Quality of Male With Idiopathic Infertility
NCT05290558PHASE2ACTIVE_NOT_RECRUITINGThe Therapeutic Effects of Bu Shen Yi Jing Pill on Semen Quality in Sub Fertile Males: a Randomized Controlled Trial
NCT06091969PHASE2NOT_YET_RECRUITINGSupplementation for Male Subfertility
NCT01595308PHASE1COMPLETEDA Pilot Study to Evaluate the Effect of Pomegranate Juice on Semen Parameters in Healthy Male Volunteers
NCT02122211PHASE1COMPLETEDCholine Dehydrogenase and Sperm Function: Effects of Betaine
NCT02575924PHASE1UNKNOWNInfluence of Culture Media on Clinical Outcomes in Poor Responders or Severe Male Infertility
NCT01304927PHASE2/PHASE3COMPLETEDVitamin D Supplementation and Male Infertility: The CBG-study a Randomized Clinical Trial
NCT02349945PHASE2/PHASE3COMPLETEDFSH Receptor Polymorphism p.N680S and Efficacy of FSH Therapy
NCT05222841PHASE2/PHASE3COMPLETEDThe Effectiveness of Spermotrend Food Supplement in the Treatment of Male Infertility
NCT05616598PHASE2/PHASE3COMPLETEDEffect of New Oral Treatment for Hepatitis C Virus on Seminal Parameters
NCT02025270PHASE1/PHASE2COMPLETEDMSCs For Treatment of Azoospermic Patients
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