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Increasing Penile Length and Girth in Healthy Men Using a Novel Protocol: The P-Long Study

Judson Brandeis MD*, Charles Runels MD, Scott Lu MD

Various therapies have been utilized to increase penile length and girth. P-Long evaluates a novel combination therapy using Platelet-Rich Plasma (PRP), penile traction for lengthening, vacuum erection device for girth enhancement, and nitric oxide precursor supplements to augment penile vascular smooth muscle function. A prospective, non-randomized study was designed to evaluate the efficacy of combination therapy in healthy men aged 20-55 with baseline normal erectile function and no penile pathology. Monthly penile length and girth measurements were obtained using at-home photography of an erect penis with maximal tumescence. PRP was administered in the right and left corpora under ultrasound guidance once a month for six months. Subjective erectile function was assessed with a 5-point Likert Scale. Subjects underwent twice daily penile traction for 20 minutes and suction for 12 minutes. Oral nitric oxide boosting supplementation consisted of 3 gm L-Citrulline and 1 gm beet extract. Mean age was 32 and mean baseline erect penile length was 5.70 and girth was 5.25. Erect penis length was 0.805 inch greater after six months from baseline (N=29, paired t test t=13.641 p value=0.000). Circumference was 0.469 inch greater (N=29, paired t test t=13.498 p value=0.000). Using a Likert scale, all participants reported better erectile function. No adverse events were reported. Results from a pilot study using a novel combination therapy (P-Long Protocol) in healthy men demonstrated increases in penile length, girth, and subjective erectile function improvement compared to baseline with no adverse effects.